Feeding device and vehicle-mounted display screen testing equipment
By designing a dual-carrier structure, the loading and testing of vehicle-mounted displays can be carried out simultaneously, solving the problem of low production efficiency in existing technologies, improving production efficiency and simplifying the loading operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XINXINTENG TECH CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing technology, during the testing of the vehicle-mounted display screen, the single-carrier linear reciprocating feeding device has a long dwell time at the test station, resulting in idle waiting at the feeding station, limited material transmission cycle, difficulty in meeting the needs of high-speed production, and low production efficiency.
The system adopts a dual-carrier structure, with the first and second carriers sliding horizontally. The second carrier can be raised and lowered, and synchronous loading and testing are achieved through a drive structure. When the second carrier is in the first position, it is located below the first carrier, staggered from the running path, to achieve parallel operation of loading and testing.
The dual-carrier structure design enables simultaneous loading and testing, significantly improving production cycle time, increasing production efficiency, simplifying loading operations, and reducing equipment footprint and manufacturing costs.
Smart Images
Figure CN224590197U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screen testing technology, and particularly relates to a feeding device and a vehicle display screen testing equipment. Background Technology
[0002] With the continuous improvement of automotive intelligence, in-vehicle displays, as a core component of human-machine interaction, directly impact driving experience and safety. During the production process, in-vehicle displays require calibration of multiple optical and electrical parameters, among which Vcom (Common Voltage) and white balance calibration are particularly critical. Vcom calibration eliminates flicker and ensures voltage stability; white balance calibration ensures accurate color reproduction and avoids color cast. These two calibration operations must be performed at specific testing stations using precision instruments, placing strict requirements on the display's positioning accuracy, testing environment stability, and work cycle time.
[0003] Currently, the industry commonly uses a single-carrier linear reciprocating feeding device for calibration operations. After the carrier receives the display screen to be tested at the loading station, it slides to the testing station for calibration. After completion, it returns to the loading station to unload and repeats the process. However, because the carrier needs to stay at the testing station for a long time during the testing process, the loading station is idle and waiting. The carrier's reciprocating movement and the testing operation cannot be carried out in parallel. The material transfer cycle is limited by the duration of a single test, making it difficult to meet the high-speed production requirements of large-scale automotive display production, resulting in low production efficiency. Utility Model Content
[0004] The purpose of this application is to provide a feeding device and a vehicle-mounted display screen testing equipment, aiming to solve the problems of how to improve production efficiency and how to improve the convenience of feeding.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0006] In a first aspect, a feeding device is provided, comprising a material transfer station and a testing station along a first direction. The testing station is used to test materials. The feeding device includes a driving structure, a first carrier for carrying the materials, and a second carrier for carrying the materials. Both the first carrier and the second carrier are slidably arranged along the first direction. The driving structure is used to drive the first carrier and the second carrier to reciprocate between the material transfer station and the testing station. The first carrier or the second carrier receives the materials to be tested at the material transfer station and transfers the materials to the testing station. The driving structure is also used to drive the second carrier to rise and fall, so that the second carrier has a first position and a second position, the height of the second position being greater than the height of the first position. When the second carrier is in the first position, the second carrier slides below the first carrier. When the second carrier is in the second position, the second carrier receives the materials at the material transfer station.
[0007] In some embodiments, the driving structure includes a sliding drive member and a lifting assembly connected to the sliding drive member. The sliding drive member is used to drive the first carrier and the lifting assembly to slide back and forth between the material transfer station and the testing station. The second carrier is connected to the lifting assembly, and the lifting assembly is used to drive the second carrier to lift.
[0008] In some embodiments, the sliding drive includes a first driver and a second driver located below the first driver, the first vehicle and the lifting assembly are respectively connected to the first driver and the second driver, and the first driver and the second driver are respectively used to drive the first vehicle and the lifting assembly to slide.
[0009] In some embodiments, the first driver includes a first electric guide rail extending along the first direction, two of which are spaced apart; the second driver includes a second electric guide rail extending along the first direction, two of which are spaced apart; the two ends of the first carrier are slidably connected to the two first electric guide rails respectively; and the two ends of the lifting assembly are slidably connected to the two second electric guide rails respectively.
[0010] In some embodiments, the lifting assembly includes a connecting plate slidably connected to the sliding drive member, a lifting driver connected to the connecting plate, and a support plate connected to the lifting driver. The support plate is used to support the second carrier, and the lifting driver is used to drive the support plate to lift.
[0011] In some embodiments, the lifting assembly further includes a guide structure connected between the connecting plate and the support plate. The guide structure is used to guide the support plate to move in a vertical direction. Multiple guide structures are arranged at intervals along the periphery of the connecting plate. The guide structure includes a guide sleeve connected to the connecting plate and a guide post that slides through the guide sleeve in a vertical direction. The top end of the guide post is connected to the support plate.
[0012] In some embodiments, the lifting assembly further includes a limiting plate located at the lower end of the connecting plate and a lifting buffer connected to the limiting plate on the side facing the connecting plate. The limiting plate is connected to the end of the guide post away from the support plate. The lifting buffer is used to abut against the connecting plate when the limiting plate moves to a preset height, so as to limit the movement of the support plate.
[0013] In some embodiments, the connecting plate is provided with a buffer on the side facing the support plate, the buffer being located on the moving path of the support plate, and the buffer being used to buffer the impact on the support plate.
[0014] In some embodiments, multiple drive structures are arranged at intervals along the second direction, and multiple test stations are arranged at intervals along the second direction. Each drive structure and each test station corresponds one-to-one. Multiple first carriers and multiple second carriers are provided. Each drive structure is used to drive each first carrier and each second carrier to slide back and forth between the transfer station and the test station.
[0015] Secondly, a vehicle-mounted display screen testing device is provided, including the aforementioned feeding device.
[0016] The feeding device provided in this application, when the second carrier is in the first position, is located below the first carrier, and the running paths of the second carrier and the first carrier are vertically offset. Therefore, both the first and second carriers can simultaneously slide back and forth between the transfer station and the testing station without interfering with each other. When the first carrier is carrying material for testing at the testing station, the drive structure can simultaneously drive the second carrier to slide to the transfer station to receive the next material to be tested. Conversely, when the material on the second carrier is being tested at the testing station, the first carrier can return to the transfer station for loading operations, thereby achieving synchronous loading and testing, which greatly improves the overall production cycle and increases production efficiency. Furthermore, when the second carrier receives material at the transfer station, the drive structure raises the second carrier to the second position, placing the second carrier in a fixed position that matches the preset working height of the external loading equipment, thereby improving the convenience of the loading operation. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the feeding device provided in one embodiment of this application;
[0019] Figure 2 This is a schematic diagram of the split structure of the feeding device provided in the embodiments of this application;
[0020] Figure 3 This is a schematic diagram of the lifting assembly provided in the embodiments of this application;
[0021] Figure 4 This is a schematic diagram of the overall structure of a feeding device provided in another embodiment of this application.
[0022] The following are the labeling elements in the figure:
[0023] 10. First carrier; 20. Second carrier; 30. Drive structure; 31. Sliding drive component; 311. First driver; 3111. First electric guide rail; 312. Second driver; 3121. Second electric guide rail; 32. Lifting assembly; 321. Connecting plate; 322. Lifting driver; 323. Support plate; 324. Guide structure; 3241. Guide sleeve; 3242. Guide post; 325. Limiting plate; 326. Lifting buffer; 327. Buffer component; 200. Material transfer station; 300. Testing station; 400. Material. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] Please see Figures 1 to 4This application provides a feeding device with a material transfer station 200 and a testing station 300 along a first direction a. The testing station 300 is used to test material 400. The feeding device includes a drive structure 30, a first carrier 10 for carrying material 400, and a second carrier 20 for carrying material 400. Both the first carrier 10 and the second carrier 20 are slidably arranged along the first direction a. The drive structure 30 is used to drive the first carrier 10 and the second carrier 20 to reciprocate between the material transfer station 200 and the testing station 300. The first carrier 10 or the second carrier 20 receives the material 400 to be tested at the material transfer station 200 and transfers the material 400 to the test station 300; the drive structure 30 is also used to drive the second carrier 20 to rise and fall, so that the second carrier 20 has a first position and a second position, the height of the second position is greater than the height of the first position. When the second carrier 20 is in the first position, the second carrier 20 slides below the first carrier 10; when the second carrier 20 is in the second position, the second carrier 20 receives the material 400 at the material transfer station 200.
[0029] It should be noted that the material 400 provided in this embodiment is an in-vehicle display screen. As a core component of human-computer interaction, the display performance of the in-vehicle display screen directly affects the driving experience and driving safety. The test station 300 is equipped with a test structure, where the in-vehicle display screen can undergo multiple optical and electrical parameter calibrations, such as Vcom and white balance calibration. Optionally, the test structure is a color analyzer. Of course, in other possible embodiments, the material 400 can also be other structures, and this application does not limit the specific structure of the material 400.
[0030] Understandably, the material transfer station 200 can be connected to a transfer trolley or a robotic arm, or it can be manually loaded. When the first carrier 10 and the second carrier 20 move to the material transfer station 200, the robotic arm loads the material 400 onto the first carrier 10 or the second carrier 20. After the material 400 on the first carrier 10 or the second carrier 20 has been tested, the first carrier 10 or the second carrier 20 slides to the material transfer station 200, where the robotic arm can unload the tested material 400. In other words, the material transfer station 200 can both load and unload the material 400, thus allowing operators to simultaneously monitor both loading and unloading processes.
[0031] In this embodiment, the drive structure 30 is used to drive the second carrier 20 to rise and fall, so the second carrier 20 can switch between a first position and a second position, with the height of the second position being greater than the height of the first position. Optionally, if the height of the first position is less than the height of the first carrier 10, then when the second carrier 20 is in the first position, the second carrier 20 is located below the first carrier 10, so that the running path of the second carrier 20 can be offset from the running path of the first carrier 10 in the vertical direction. Therefore, the sliding of the second carrier 20 will not affect the sliding of the first carrier 10. The height of the second position can be flush with the height of the first carrier 10. Therefore, when the first carrier 10 and the second carrier 20 are in the material transfer station 200, the receiving positions of the first carrier 10 and the second carrier 20 are the same, which facilitates material loading. By accurately raising the second carrier 20 to a fixed second position that matches the preset working height of the loading equipment (such as a robot), a stable working plane is created for material loading. This avoids the need for the loading equipment to change the loading height, simplifies the loading procedure, and significantly reduces the risk of collisions, falls, or positioning deviations during the loading process.
[0032] The feeding device provided in this application, when the second carrier 20 is in the first position, is located below the first carrier 10, and the running path of the second carrier 20 is vertically offset from that of the first carrier 10. Therefore, both the first carrier 10 and the second carrier 20 can simultaneously slide back and forth between the transfer station 200 and the testing station 300 without interfering with each other. When the first carrier 10 is carrying material 400 for testing at the testing station 300, the drive structure 30 can simultaneously drive the second carrier 20 to slide to the transfer station 200 to receive the next material 400 to be tested. Conversely, when the material 400 on the second carrier 20 is being tested at the testing station 300, the first carrier 10 can return to the transfer station 200 to perform a loading operation, thereby achieving simultaneous loading and testing, which greatly improves the overall production cycle and increases production efficiency; and when the second carrier 20 receives the material 400 at the transfer station 200, the drive structure 30 raises the second carrier 20 to a second position, so that the second carrier 20 is in a fixed position that matches the preset working height of the external loading equipment, thereby improving the convenience of the loading operation.
[0033] Furthermore, the second carrier 20 is raised and lowered via the drive structure 30, cleverly utilizing vertical space to allow it to switch between the first and second positions. In the sliding state, the second carrier 20 slides hidden beneath the first carrier 10, significantly saving horizontal installation space and avoiding the increased footprint caused by using dual parallel tracks. The entire device has a compact and rational structural layout, achieving dual-station functionality within a limited space and reducing equipment manufacturing costs.
[0034] In some embodiments, such as Figure 1 and Figure 2 As shown, the drive structure 30 includes a sliding drive component 31 and a lifting assembly 32 connected to the sliding drive component 31. The sliding drive component 31 drives the first carrier 10 and the lifting assembly 32 to reciprocate between the material transfer station 200 and the testing station 300. The second carrier 20 is connected to the lifting assembly 32, and the lifting assembly 32 drives the second carrier 20 to move up and down. Understandably, the sliding drive component 31 can serve as a unified power source, driving the first carrier 10, the entire lifting assembly 32, and the second carrier 20 to perform high-precision linear reciprocating sliding, ensuring the synchronicity and path consistency of the two carriers' horizontal movement. The lifting assembly 32 specifically controls the vertical movement of the second carrier 20, enabling it to precisely switch between the first and second positions.
[0035] In some embodiments, the sliding drive 31 includes a first drive 311 and a second drive 312 located below the first drive 311. The first carrier 10 and the lifting assembly 32 are respectively connected to the first drive 311 and the second drive 312. The first drive 311 and the second drive 312 are used to drive the first carrier 10 and the lifting assembly 32 to slide. By setting the first drive 311 and the second drive 312 arranged at intervals in the vertical direction, that is, by using the drive in a layered arrangement, the vertical space can be efficiently utilized in the vertical direction, avoiding the waste of space in the width direction caused by setting two sets of sliding tracks side by side for the first carrier 10 and the second carrier 20, making the equipment layout more compact. At the same time, the first drive 311 and the second drive 312 directly drive their target objects, with the shortest transmission path, low energy loss, and high driving efficiency.
[0036] In some embodiments, the first driver 311 includes a first electric guide rail 3111 extending along a first direction a, with two first electric guide rails 3111 spaced apart. The second driver 312 includes a second electric guide rail 3121 extending along the first direction a, with two second electric guide rails 3121 spaced apart. The two ends of the first carrier 10 are slidably connected to the two first electric guide rails 3111, and the two ends of the lifting assembly 32 are slidably connected to the two second electric guide rails 3121. Since the vehicle-mounted display screen has a certain width, its weight and installation position may generate a large overturning moment. The dual-guide rail structure can effectively resist these moments, completely preventing the first carrier 10 and the second carrier 20 from experiencing jamming, shaking, or swaying during high-speed start-up, stopping, or lifting. This ensures that the first carrier 10 and the second carrier 20 are subjected to uniform force and maintain a stable posture throughout the sliding process. This is crucial for testing and calibration, as any slight vibration or deformation will cause a change in the relative position between the test structure and the display screen, directly ensuring the accuracy and repeatability of the test data.
[0037] In some embodiments, such as Figure 3 As shown, the lifting assembly 32 includes a connecting plate 321 slidably connected to the sliding drive member 31, a lifting driver 322 connected to the connecting plate 321, and a support plate 323 connected to the lifting driver 322. The support plate 323 supports the second carrier 20, and the lifting driver 322 drives the support plate 323 to rise or fall. Optionally, the lifting driver 322 can be a cylinder, which can use the compression and expansion of gas to achieve linear motion, thereby driving the support plate 323 to rise or fall.
[0038] In some embodiments, the lifting assembly 32 further includes a guide structure 324 connected between the connecting plate 321 and the support plate 323. The guide structure 324 guides the support plate 323 to move vertically, and multiple guide structures 324 are arranged at intervals along the periphery of the connecting plate 321. The guide structure 324 includes a guide sleeve 3241 connected to the connecting plate 321 and a guide post 3242 that slides through the guide sleeve 3241 vertically. The top end of the guide post 3242 is connected to the support plate 323. By setting the guide structure 324, it is ensured that the movement of the support plate 323 is strictly vertical, ensuring high movement accuracy. Furthermore, the multiple guide structures 324 arranged at intervals along the periphery of the connecting plate 321 can effectively prevent the support plate 323 from tilting, twisting, or swaying during the lifting process, greatly improving the stability and reliability of the lifting movement.
[0039] In some embodiments, the lifting assembly 32 further includes a limiting plate 325 located at the lower end of the connecting plate 321 and a lifting buffer 326 connected to the limiting plate 325 on the side facing the connecting plate 321. The limiting plate 325 is connected to the end of the guide post 3242 away from the support plate 323. The lifting buffer 326 is used to abut against the connecting plate 321 when the limiting plate 325 moves to a preset height, so as to limit the movement stroke of the support plate 323.
[0040] By incorporating a lifting buffer 326, excessive movement of the limit plate 325, guide post 3242, and support plate 323 is effectively prevented, thus avoiding the risk of the limit plate 325 or support plate 323 colliding with other mechanisms and protecting the expensive drive and precision mechanical structure from damage. Furthermore, at the last moment before the limit plate 325 contacts the connecting plate 321, the lifting buffer 326 contacts and activates first. Through hydraulic damping or elastic deformation, it efficiently absorbs the upward kinetic energy of the limit plate 325, thereby converting the violent rigid impact and improving the overall operational stability, reliability, and service life of the equipment. Optionally, the lifting buffer 326 is a hydraulic buffer.
[0041] In some embodiments, the connecting plate 321 is provided with a buffer 327 on the side facing the support plate 323. The buffer 327 is located on the moving path of the support plate 323 and is used to buffer the impact of the support plate 323. The buffer 327 can effectively absorb the inertial kinetic energy of the descending support plate 323, transforming the violent rigid collision into a soft and controllable stop, preventing the support plate 323, the connecting plate 321, and the precision components mounted thereon from deforming, loosening, or being damaged due to the impact, significantly improving the durability and reliability of the equipment. At the same time, it also avoids the transmission of impact vibration to the vehicle display screen, providing a more stable environment for precision testing. Optionally, the buffer 327 is a buffer pad made of flexible materials such as rubber, silicone, or sponge.
[0042] In some embodiments, multiple drive structures 30 are arranged at intervals along the second direction b, and multiple test stations 300 are arranged at intervals along the second direction b. Each drive structure 30 and each test station 300 corresponds one-to-one. Multiple first carriers 10 and multiple second carriers 20 are provided. Each drive structure 30 is used to drive each first carrier 10 and each second carrier 20 to slide back and forth between the transfer station 200 and the test station 300. By arranging multiple independent drive structures 30 and test stations 300 in parallel along the second direction b, and equipping them with corresponding multiple first carriers 10 and multiple second carriers 20, a leap from single-line production to parallel production is achieved. Different vehicle displays can be calibrated and tested simultaneously and independently, resulting in a doubling of production efficiency and a significant increase in production capacity. Optionally, one of the test stations 300 can be used as a reserved station. Optionally, the first direction a and the second direction b are perpendicular to each other.
[0043] This utility model also proposes a vehicle-mounted display screen testing device, which includes a feeding device. The specific structure of the feeding device is as described in the above embodiments. Since this vehicle-mounted display screen testing device adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0044] In summary, the feeding device provided in this application, when the second carrier 20 is in the first position, is located below the first carrier 10, and the running path of the second carrier 20 is vertically offset from that of the first carrier 10. Therefore, both the first carrier 10 and the second carrier 20 can simultaneously slide back and forth between the transfer station 200 and the testing station 300 without interfering with each other. When the first carrier 10 is carrying material 400 for testing at the testing station 300, the drive structure 30 can simultaneously drive the second carrier 20 to slide to the transfer station 200 to receive the next material to be tested. Material 400; conversely, when material 400 on the second carrier 20 is being tested at the testing station 300, the first carrier 10 can return to the transfer station 200 for loading, thereby achieving synchronous loading and testing, which greatly improves the overall production cycle and increases production efficiency; and when the second carrier 20 receives material 400 at the transfer station 200, the drive structure 30 raises the second carrier 20 to a second position, so that the second carrier 20 is in a fixed position that matches the preset working height of the external loading equipment, thereby improving the convenience of loading operation.
[0045] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A feeding device, provided with a material moving station (200) and a testing station (300) in a first direction, the testing station (300) being used for testing material (400), characterized in that: The feeding device includes a drive structure (30), a first carrier (10) for carrying the material (400), and a second carrier (20) for carrying the material (400). Both the first carrier (10) and the second carrier (20) are slidably disposed along the first direction. The drive structure (30) drives the first carrier (10) and the second carrier (20) to reciprocate between the material transfer station (200) and the testing station (300). The first carrier (10) or the second carrier (20)... The carrier (20) receives the material (400) to be tested at the material transfer station (200) and transfers the material (400) to the test station (300); the drive structure (30) is also used to drive the second carrier (20) to rise and fall, so that the second carrier (20) has a first position and a second position, the height of the second position is greater than the height of the first position, and when the second carrier (20) is in the first position, the second carrier (20) slides below the first carrier (10); When the second carrier (20) is in the second position, the second carrier (20) receives the material (400) at the material transfer station (200).
2. The feeder of claim 1, wherein: The drive structure (30) includes a sliding drive component (31) and a lifting component (32) connected to the sliding drive component (31). The sliding drive component (31) is used to drive the first carrier (10) and the lifting component (32) to slide back and forth between the material transfer station (200) and the test station (300). The second carrier (20) is connected to the lifting component (32), and the lifting component (32) is used to drive the second carrier (20) to rise and fall.
3. The feeder of claim 2, wherein: The sliding drive (31) includes a first drive (311) and a second drive (312) located below the first drive (311). The first vehicle (10) and the lifting assembly (32) are respectively connected to the first drive (311) and the second drive (312). The first drive (311) and the second drive (312) are respectively used to drive the first vehicle (10) and the lifting assembly (32) to slide.
4. The feeder of claim 3, wherein: The first driver (311) includes a first electric guide rail (3111) extending along the first direction, and two first electric guide rails (3111) are arranged at intervals. The second driver (312) includes a second electric guide rail (3121) extending along the first direction, and two second electric guide rails (3121) are arranged at intervals. The two ends of the first carrier (10) are respectively slidably connected to the two first electric guide rails (3111), and the two ends of the lifting assembly (32) are respectively slidably connected to the two second electric guide rails (3121).
5. The feeder of claim 2, wherein: The lifting assembly (32) includes a connecting plate (321) slidably connected to the sliding drive (31), a lifting driver (322) connected to the connecting plate (321), and a support plate (323) connected to the lifting driver (322). The support plate (323) is used to support the second carrier (20), and the lifting driver (322) is used to drive the support plate (323) to rise and fall.
6. The feeder of claim 5, wherein: The lifting assembly (32) further includes a guide structure (324) connected between the connecting plate (321) and the support plate (323). The guide structure (324) is used to guide the support plate (323) to move in the vertical direction. Multiple guide structures (324) are arranged at intervals along the periphery of the connecting plate (321). The guide structure (324) includes a guide sleeve (3241) connected to the connecting plate (321) and a guide post (3242) that slides through the guide sleeve (3241) in the vertical direction. The top end of the guide post (3242) is connected to the support plate (323).
7. The feeder of claim 6, wherein: The lifting assembly (32) further includes a limiting plate (325) located at the lower end of the connecting plate (321) and a lifting buffer (326) connected to the side of the limiting plate (325) facing the connecting plate (321). The limiting plate (325) is connected to the end of the guide post (3242) away from the support plate (323). The lifting buffer (326) is used to abut against the connecting plate (321) when the limiting plate (325) moves to a preset height, so as to limit the movement stroke of the support plate (323).
8. The feeder of claim 5, wherein: The connecting plate (321) is provided with a buffer (327) on the side facing the support plate (323). The buffer (327) is located on the moving path of the support plate (323) and is used to buffer the impact of the support plate (323).
9. A feeder device as claimed in any one of claims 1 to 8, wherein: Multiple drive structures (30) are arranged at intervals along the second direction, and multiple test stations (300) are arranged at intervals along the second direction. Each drive structure (30) and each test station (300) corresponds to one another. Multiple first carriers (10) and multiple second carriers (20) are provided. Each drive structure (30) is used to drive each first carrier (10) and each second carrier (20) to slide back and forth between the transfer station (200) and the test station (300).
10. An in-vehicle display screen testing apparatus characterized by comprising: Includes the feeding device as described in any one of claims 1 to 9.