A single-sided driven dual-station alternating loading and unloading device

Abstract

This application provides a single-sided driven dual-station alternating loading and unloading device, relating to the field of industrial automation technology. It includes a frame structure with two opposing mounting bases; two carrier assemblies, arranged vertically between the two mounting bases and horizontally sliding with each base; and two sets of drive mechanisms, each mounted on one of the mounting bases and connected to one of the carrier assemblies, for driving the carrier assemblies to move horizontally alternately. This application enables alternating telescopic loading and unloading operations, improving work efficiency. The single-sided drive design results in a compact structure, saving space, small size, and low cost.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, and in particular to a single-sided driven dual-station alternating loading and unloading device. Background Technology

[0002] In industrial production processes such as automobile manufacturing and electromechanical industries, it is often necessary to perform operations such as loading and unloading of materials to realize the processing, transfer, and packaging of materials.

[0003] Traditional material handling equipment typically employs a single-station design, where a single material carrier moves back and forth between the manual and robotic sides to load and unload materials. This results in both workers and robots needing to wait for extended periods during manual loading and unloading, leading to low efficiency. Utility Model Content

[0004] In view of the above problems, the present invention provides a single-sided driven dual-station alternating loading and unloading device to overcome or at least partially solve the above problems.

[0005] A single-sided driven dual-station alternating loading and unloading device includes:

[0006] The frame structure includes two mounting base plates arranged opposite each other;

[0007] Two carrier components are arranged vertically between two mounting substrates and are horizontally slidable with respect to the two mounting substrates respectively.

[0008] Two sets of drive mechanisms are disposed on one of the mounting base plates, and the two sets of drive mechanisms are respectively connected to the two sets of carrier components one-to-one, for driving the two sets of carrier components to move horizontally alternately.

[0009] Preferably, the carrier assembly includes:

[0010] Two first movable plates, which are arranged opposite to each other, are slidably connected to the inner sides of the two mounting base plates, and one of the first movable plates is connected to the corresponding driving mechanism;

[0011] A tray and two second movable plates arranged opposite each other, the tray being connected between the two second movable plates; the two second movable plates are respectively horizontally slidably disposed inside the two first movable plates, and are driven to slide by a movable pulley mechanism embedded in the first movable plates.

[0012] Preferably, the movable pulley mechanism includes a first transmission belt and a rotating wheel rotatably embedded at the end of the first movable plate. The first transmission belt is wrapped around both sides of the first movable plate and sleeved on the rotating wheel. The two ends of the first transmission belt are respectively connected to the mounting base plate and the second movable plate through a clamping structure.

[0013] Preferably, the mounting substrate has a plurality of photoelectric switches on its sidewall, and the first movable plate has a plurality of sensing plates that are respectively located on the same horizontal plane as the plurality of photoelectric switches; the photoelectric switches are used to detect the origin position and the extreme positions of the carrier assembly extending to both sides.

[0014] Preferably, the first movable plate and the mounting base plate, as well as the second movable plate and the first movable plate, are slidably connected by a guide rail and a sliding groove.

[0015] Preferably, the two sets of drive mechanisms correspond to the heights of the two carrier components arranged on the upper and lower layers, respectively; the drive mechanism includes a servo motor, a first drive wheel, a second drive wheel, a third drive wheel, a fourth drive wheel, a second drive belt, and a toothed drive belt.

[0016] The servo motor is mounted on the top of the mounting base plate via a mounting plate;

[0017] The first transmission wheel is sleeved on the output shaft of the servo motor; the second transmission wheel is disposed on the outside of the mounting base plate and is connected to the first transmission wheel via the second transmission belt.

[0018] The third and fourth transmission wheels are horizontally arranged on the inner side of the mounting base plate via auxiliary transmission shafts; wherein, the third transmission wheel is opposite to the second transmission wheel and is respectively sleeved on both ends of the corresponding auxiliary transmission shaft; the auxiliary transmission shaft rotatably passes through the mounting base plate;

[0019] The transmission toothed belt is sleeved on the outside of the third transmission wheel and the fourth transmission wheel.

[0020] Preferably, the mounting base plate is provided with an adjustment structure, and the adjustment structure is disposed opposite to the fourth transmission wheel;

[0021] The adjustment structure includes a movable block, an adjustment frame, and an adjustment screw. The movable block is sleeved on the end of the auxiliary transmission shaft connected to the fourth transmission wheel via a bearing. The movable block is slidably disposed within the adjustment frame, and both ends of the movable block are respectively connected to the adjustment frame via the adjustment screw.

[0022] The mounting base plate has horizontally arranged strip-shaped holes for the installation and adjustment of the adjustment structure.

[0023] Preferably, the bottom of the first movable plate is provided with teeth along its length, and the teeth are disposed above and mesh with the transmission toothed belt.

[0024] Preferably, the mounting base plate is further provided with a support block extending along the direction of the transmission toothed belt, the support block extending to the inner side of the transmission toothed belt and supporting the upper toothed belt of the transmission toothed belt.

[0025] Preferably, a pre-installed wiring cable chain is provided on the inner side of the mounting base plate opposite to the driving mechanism along its length.

[0026] This application specifically includes the following advantages:

[0027] In the embodiments of this application, two carrier components are arranged vertically between two opposing mounting substrates. These two carrier components are horizontally slidable with respect to the two mounting substrates, allowing them to move horizontally between the two substrates, extending or retracting. Two sets of drive mechanisms, each mounted on one of the mounting substrates and connected to one of the two sets of carrier components, drive the two sets of carrier components to move horizontally alternately. One drive mechanism provides a driving force to one side of each carrier component, while the other side moves synchronously under the action of the drive mechanism. This allows the two sets of carrier components to alternately extend to the sides and retract towards the center, thus achieving alternating loading and unloading operations. This application enables alternating retractable loading and unloading operations, improving work efficiency. Furthermore, the single-sided drive results in a compact structure, saving space, small size, and low cost. Attached Figure Description

[0028] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application 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.

[0029] Figure 1 This is a schematic diagram of the overall structure of the device when it is in the middle position;

[0030] Figure 2 This is a schematic diagram of the structure of the device of this utility model when it is in the extended position;

[0031] Figure 3 This is a schematic diagram of the inner part of the mounting base plate of the device of this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the device of this utility model with the first moving plate and the second moving plate in the middle position;

[0033] Figure 5This is a partial structural cross-sectional view of the device of this utility model when it is in the middle position;

[0034] Figure 6 This is a schematic diagram of the clamping structure of the device of this utility model;

[0035] Figure 7 This is a schematic diagram of the adjustment structure of the device of this utility model;

[0036] Reference numerals: 1. Frame structure; 11. Mounting base plate; 12. Horizontal plate; 13. Strip hole; 14. Support block; 15. Photoelectric switch; 16. Sensing plate; 17. Reserved wiring cable chain; 2. Drive mechanism; 21. Servo motor; 22. First transmission wheel; 23. Second transmission wheel; 24. Third transmission wheel; 25. Fourth transmission wheel; 26. Second transmission belt; 27. Transmission toothed belt; 28. Secondary transmission shaft; 29. ​​Mounting plate; 3. Carrier assembly; 31. First moving plate; 311. Tooth; 32. Tray; 321. Positioning pin; 33. Second moving plate; 4. Movable pulley mechanism; 41. First transmission belt; 42. Rotating wheel; 5. Clamping structure; 51. Fixing block; 52. Toothed block; 6. Adjustment structure; 61. Moving block; 62. Adjustment frame; 63. Adjustment screw. Detailed Implementation

[0037] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] Reference Figures 1-7 The diagram shows a structural schematic of a single-sided driven dual-station alternating loading and unloading device according to the present invention, which may specifically include:

[0039] The frame structure 1 includes two mounting base plates 11 arranged opposite to each other;

[0040] Two carrier components 3 are arranged in a vertical layer between two mounting substrates 11 and are horizontally slidable with the two mounting substrates 11 respectively.

[0041] Two sets of drive mechanisms 2 are disposed on one of the mounting base plates 11, and the two sets of drive mechanisms 2 are respectively connected to the two sets of carrier components 3 in a one-to-one correspondence, for driving the two sets of carrier components 3 to move horizontally alternately.

[0042] In the embodiments of this application, two carrier components 3 are arranged vertically between two opposing mounting substrates 11, and the two carrier components 3 are horizontally slidable with respect to the two mounting substrates 11, allowing the two carrier components 3 to move horizontally between the two mounting substrates 11, extending or retracting. Two sets of drive mechanisms 2 are provided, each mounted on one of the mounting substrates 11 and connected one-to-one with the two sets of carrier components 3, to drive the two sets of carrier components 3 to move horizontally alternately. One drive mechanism provides a driving force for horizontal movement on one side of the carrier component 3, while the other side moves synchronously under the action of the drive mechanism. This allows the two sets of carrier components 3 to alternately extend to both sides and retract to the middle, thereby achieving alternating loading and unloading operations. This application enables alternating extension and retraction loading and unloading operations, improving work efficiency. Furthermore, the single-sided drive results in a compact structure, saving space, small size, and low cost.

[0043] The following will further describe a single-sided driven dual-station alternating loading and unloading device in this exemplary embodiment.

[0044] In the embodiments of this application, reference is made to Figures 1-3 The aforementioned frame structure 1 consists of two opposing mounting base plates 11 and multiple horizontal plates 12 connecting the two mounting base plates 11. The multiple horizontal plates 12 are respectively connected to the top and bottom of the mounting base plates 11, so as not to affect the operation of the carrier assembly 3 between the mounting base plates 11. The two carrier assemblies 3 are arranged vertically between the two mounting base plates 11 and are horizontally slidable with the two mounting base plates 11 respectively, so that the two carrier assemblies 3 can move horizontally between the mounting base plates 11 and extend to both sides independently, and the vertical arrangement will not interfere with each other.

[0045] Two sets of drive mechanisms 2 are spaced apart on one of the mounting base plates 11, and the two sets of drive mechanisms 2 are respectively connected to two sets of carrier components 3 in a one-to-one correspondence. They are used to drive the two sets of carrier components 3 to move horizontally alternately. That is, when one drive mechanism 2 drives the carrier component 3 connected to it to extend to one side, the other drive mechanism 2 drives the other carrier component 3 to extend to the other side. The two carrier components 3 extend to both sides at the same time and can retract to the middle at the same time, thereby realizing the alternating loading and unloading operation of the two workstations on both sides of the device, which can greatly improve the work efficiency. Moreover, the single-sided drive mechanism 2 makes the device structure more compact, smaller in size, and lower in cost compared to the two-sided drive mechanism 2.

[0046] As an example, the carrier assembly 3 includes two first movable plates 31 arranged opposite to each other, a tray 32, and two second movable plates 33 arranged opposite to each other. The two first movable plates 31 are slidably connected to the inner sides of the two mounting base plates 11, and one of the first movable plates 31 is connected to a corresponding drive mechanism 2, which provides driving force to the first movable plate 31. The opposite first movable plate 31 acts as a driven plate and slides synchronously on the mounting base plate 11. The tray 32 is connected between the two second movable plates 33 to realize the loading of materials. The two second movable plates 33 are horizontally slidably arranged inside the two first movable plates 31 and are driven to slide by a movable pulley mechanism 4 embedded in the first movable plates 31. The movable pulley drive mechanism 2 is connected to the mounting base plate 11 and the second movable plate 33 respectively. When the first moving plate 31 moves horizontally, it drives the movable pulley mechanism 4 to run. The movable pulley mechanism 4 drives the second moving plate 33 to move horizontally. That is, when the driving mechanism 2 drives the first moving plate 31 to move horizontally, it can simultaneously drive the second moving plate 33 to move horizontally, thereby increasing the extension length of the carrier assembly 3. When retracted, the two are stacked on the inner side of the mounting base plate 11, which does not take up space and is small in size and low in cost.

[0047] Furthermore, the first movable plate 31 and the mounting base plate 11, as well as the first movable plate 31 and the second movable plate 33, can be slidably connected by a guide rail and a sliding groove, which can guide and support the horizontal movement of the first movable plate 31 and the second movable plate 33, making the horizontal movement of the first movable plate 31 and the second movable plate 33 more stable.

[0048] As an example, refer to Figures 4-5 The aforementioned movable pulley mechanism 4 includes a first transmission belt 41 and a rotating wheel 42 rotatably embedded at the end of the first movable plate 31. The first transmission belt 41 is wrapped around both sides of the first movable plate 31 and sleeved on the rotating wheel 42. The two ends of the first transmission belt 41 are respectively connected to the mounting base plate 11 and the second movable plate 33 through the clamping structure 5. The end of the first transmission belt 41 is fixed by the clamping structure 5, and the rotating wheel 42 is sleeved on the inner side of the first transmission belt 41. Since the mounting base plate 11 always remains fixed, the second moving plate 33 is slidably disposed on the first moving plate 31. Thus, the above structure constitutes a movable pulley mechanism 4. That is, when the first moving plate 31 moves horizontally under the drive of the drive mechanism 2, it will drive the rotating wheel 42 to move synchronously. Since one end of the first transmission belt 41 is fixed to the mounting base plate 11 by the clamping structure 5, the first transmission belt 41 and the rotating wheel 42 rotate relative to each other. The first transmission belt 41 pulls the other end of the second moving plate 33 fixed to it to move synchronously, thereby causing the second moving plate 33 to slide on the first moving plate 31, realizing the extension and retraction between the first moving plate 31 and the second moving plate 33.

[0049] Preferably, the above-mentioned movable pulley structure is provided in two sets, which are respectively embedded on the first movable plate 31 at intervals. The two rotating wheels 42 of the two sets of movable pulley structures are respectively located close to the two ends of the first movable plate 31, that is, the rotation directions of the two movable pulley structures are opposite. In this way, the second movable plate 33 can be stably slid when the carrier assembly 3 extends to both sides.

[0050] It should be noted that the aforementioned rotating wheel 42 and the first transmission belt 41 are preferably gear and toothed belt structures, which have high mechanical strength, high transmission accuracy and efficiency, and reliable operation.

[0051] Furthermore, referring to Figure 6 The clamping structure 5 includes a fixed block 51 and a toothed block 52 disposed opposite to each other. One side of the fixed block 51 is fixedly connected to the mounting base plate 11 / second moving plate 33; one end of the toothed block 52 also extends and is fixed to the mounting base plate 11 / second moving plate 33. The toothed block 52 has teeth on the side facing the fixed block 51 and engages with the first transmission belt 41, clamping the first transmission belt 41 between the fixed block 51 and the toothed block 52. During the rotation of the first transmission belt 41, both ends of the belt are always clamped and fixed by the clamping structure 5.

[0052] As an example, refer to Figure 2 , Figure 4 The mounting base plate 11 has multiple photoelectric switches 15 on its sidewalls, and the first moving plate 31 has multiple sensing plates 16 located on the same horizontal plane as the photoelectric switches 15. The photoelectric switches 15 are used to detect the origin position and the extreme positions of the carrier assembly 3 when it extends to both sides. Specifically, two sets of photoelectric switches 15 are set up, one above the other, corresponding to the two carrier assemblies 3, and are used to independently detect the position of the two carrier assemblies 3. Each set of photoelectric switches 15 has two extreme position detection switches and one origin position detection switch. The two extreme position detection switches are set near both ends of the mounting base plate 11. The first moving plate 31 has a sensing plate 16 on the same horizontal plane as the extreme position detection switches, which is used to detect the extreme positions of the carrier assembly 3 when it extends to both sides, so as to prevent it from extending beyond the end of the transmission toothed belt 27 and causing it to disengage. Specifically, when the first moving plate 31 extends to the left or right extreme position, the sensing plate 16 is located at the photoelectric switch 15 at the left or right end, thereby sending a signal to the control system. The origin position detection switch is positioned between the two extreme position detection switches to prevent interference. The first moving plate 31 is also equipped with a sensing plate 16 on the same horizontal plane as the origin position detection switch. This sensing plate is used to detect whether the carrier assembly 3 is located at the origin position, i.e., retracted to the middle position of the mounting base plate 11. Specifically, when the first moving plate 31 retracts to the middle position, the sensing plate 16 is located at the origin photoelectric switch 15.

[0053] As an example, refer to Figure 1 and Figure 3 The aforementioned drive mechanism 2 includes a servo motor 21, a first transmission wheel 22, a second transmission wheel 23, a third transmission wheel 24, a fourth transmission wheel 25, a second transmission belt 26, and a toothed transmission belt 27. The servo motor 21 is mounted on the top of the mounting base plate 11 via a mounting plate 29; the first transmission wheel 22 is sleeved on the output shaft of the servo motor 21; the second transmission wheel 23 is disposed on the outer side of the mounting base plate 11 and is connected to the first transmission wheel 22 via the second transmission belt 26. That is, the servo motor 21 can drive the first transmission wheel 22 to rotate, and then drive the second transmission wheel 23 to rotate synchronously via the second transmission belt 26.

[0054] The third drive wheel 24 and the fourth drive wheel 25 are horizontally arranged inside the mounting base plate 11 via auxiliary drive shafts 28. The third drive wheel 24 is opposite to the second drive wheel 23 and is respectively sleeved on both ends of the corresponding auxiliary drive shaft 28. The auxiliary drive shaft 28 rotatably passes through the mounting base plate 11. A toothed belt 27 is sleeved on the outside of the third drive wheel 24 and the fourth drive wheel 25. That is, when the second drive wheel 23 rotates, it drives the auxiliary drive shaft 28 connected to it to rotate, which in turn drives the third drive wheel 24 to rotate. The third drive wheel 24 then drives the fourth drive wheel 25 to rotate via the toothed belt 27. The toothed belt 27 is used to connect to the first moving plate 31, driving the first moving plate 31 to move horizontally.

[0055] It should be noted that the two sets of transmission mechanisms correspond to the heights of the two carrier components 3 arranged on the upper and lower layers, respectively; that is, the lengths of the second transmission belts 26 of the two transmission mechanisms are different. One is shorter, so that the transmission toothed belt 27 connected to it is located in the middle of the mounting base plate 11, and the other is longer, so that the transmission toothed belt 27 connected to it is located in the lower part of the mounting base plate 11. This ensures that the two transmission toothed belts 27 do not interfere with each other and can be connected to the two carrier components 3 arranged on the upper and lower layers, respectively.

[0056] Specifically, the first transmission wheel 22, the second transmission wheel 23, the third transmission wheel 24, the fourth transmission wheel 25, the second transmission belt 26, and the transmission toothed belt 27 are preferably connected by gear and toothed belt meshing.

[0057] As an example, the bottom of the first moving plate 31 is provided with teeth 311 along its length direction, and the teeth 311 are disposed above and mesh with the transmission toothed belt 27.

[0058] It should be noted that the transmission belt 27 has teeth on both its inner and outer sides. The third transmission wheel 24 and the fourth transmission wheel 25 are gears that mesh with the transmission belt 27. The teeth on the inner side of the transmission belt 27 mesh with the third transmission wheel 24 and the fourth transmission wheel 25, while the teeth on the outer side mesh with the first moving plate 31, so that the first moving plate 31 can be driven to move efficiently, accurately and stably.

[0059] As an example, refer to Figure 1 and Figure 7 The mounting base plate 11 is provided with an adjustment structure 6, which is disposed opposite to the fourth transmission wheel 25; the adjustment structure 6 is used to adjust the tension of the transmission toothed belt 27.

[0060] Specifically, the aforementioned adjustment structure 6 includes a movable block 61, an adjustment frame 62, and an adjustment screw 63. The adjustment frame 62 is installed in a horizontally formed slot 13 on the side wall of the mounting base plate 11. The movable block 61 is sleeved on the end of the auxiliary drive shaft 28 connected to the fourth drive wheel 25 via a bearing. The movable block 61 is slidably disposed within the adjustment frame 62, and both ends of the movable block 61 are connected to the adjustment frame 62 via the adjustment screw 63. During adjustment, by loosening the nut on the adjustment screw 63, the movable block 61 can move left and right within the adjustment frame 62, thereby driving the auxiliary drive shaft 28 connected to it to move left and right, causing the fourth drive wheel 25 at the other end of the auxiliary drive shaft 28 to move left and right, thus adjusting the tension of the transmission belt 27. After adjusting to the appropriate position, the adjustment screw 63 is fixed. The slot 13 on the mounting base plate 11 not only facilitates the installation of the adjustment structure 6 and reduces the space volume, but also creates space for the auxiliary drive shaft 28 to move left and right.

[0061] As an example, refer to Figure 3 The mounting base plate 11 is further provided with a support block 14 extending along the direction of the transmission toothed belt 27. The support block 14 extends to the inner side of the transmission toothed belt 27 and supports the upper toothed belt of the transmission toothed belt 27. The support block 14 is strip-shaped and is fixedly connected to the mounting base plate 11 by a fixing frame provided on the outer side of the mounting base plate 11. It is used to support the transmission toothed belt 27, thereby supporting the first moving plate 31 and preventing problems such as collapse due to the flexibility of the transmission toothed belt 27.

[0062] As an example, refer to Figure 2 A pre-installed wiring cable chain 17 is provided on the inner side of the mounting base plate 11 opposite to the drive mechanism 2 along its length. The pre-installed wiring cable chain 17 is used for wiring. When the device is connected to multiple other devices, the wiring can be routed through the pre-installed wiring cable chain 17 to avoid the wiring from becoming messy and tangled, thus affecting the operation of the carrier assembly 3. Specifically, two pre-installed wiring cable chains 17 are provided, one above the other, opposite to the upper and lower sets of carrier assemblies 3.

[0063] As an example, refer to Figure 2 One end of the aforementioned tray 32 is also provided with a material tray positioning pin 321, which is used to position and fix the material tray.

[0064] In one specific embodiment, two drive mechanisms 2 respectively drive the upper and lower pallets 32 to extend to the manual operation side. After the operator removes the finished product from the pallet 32, the operator loads the material into the pallet 32. The pallet 32 ​​retracts into the middle position to wait. Then, the pallet 32 ​​automatically extends to the robot side, the robot picks up the material from the pallet 32 ​​and places it into the processing machine tool, and the robot puts the finished product back into the pallet 32. The system operates automatically, with the upper and lower layers working alternately according to the above process. This can greatly improve the efficiency of material loading and unloading, and the device has a compact structure, small size, and relatively low cost.

[0065] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0066] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0067] The above provides a detailed description of a single-sided driven dual-station alternating loading and unloading device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A single-side driving double-station alternate feeding and discharging device, characterized in that, include: The frame structure includes two mounting base plates arranged opposite each other; Two carrier components are arranged vertically between two mounting substrates and are horizontally slidable with respect to the two mounting substrates respectively. Two sets of drive mechanisms are disposed on one of the mounting base plates, and the two sets of drive mechanisms are respectively connected to the two sets of carrier components one-to-one, for driving the two sets of carrier components to move horizontally alternately.

2. The single-side driving double-station alternate feeding and discharging device according to claim 1, characterized in that, The carrier component includes: Two first movable plates, which are arranged opposite to each other, are slidably connected to the inner sides of the two mounting base plates, and one of the first movable plates is connected to the corresponding driving mechanism; A tray and two second movable plates arranged opposite each other, the tray being connected between the two second movable plates; the two second movable plates are respectively horizontally slidably disposed inside the two first movable plates, and are driven to slide by a movable pulley mechanism embedded in the first movable plates.

3. The single-side driving double-station alternate feeding and discharging device according to claim 2, characterized in that, The movable pulley mechanism includes a first transmission belt and a rotating wheel rotatably embedded at the end of the first movable plate. The first transmission belt is wrapped around both sides of the first movable plate and sleeved on the rotating wheel. The two ends of the first transmission belt are respectively connected to the mounting base plate and the second movable plate through a clamping structure.

4. The single-side driving double-station alternate feeding and discharging device according to claim 2, characterized in that, The mounting base plate has multiple photoelectric switches on its sidewall, and the first movable plate has multiple sensing plates that are located on the same horizontal plane as the multiple photoelectric switches; the photoelectric switches are used to detect the origin position and the extreme positions of the carrier assembly extending to both sides.

5. The single-side driving double-station alternate feeding and discharging device according to claim 2, characterized in that, The first movable plate and the mounting base plate, as well as the second movable plate and the first movable plate, are slidably connected by a guide rail and a sliding groove.

6. The single-side driving double-station alternate feeding and discharging device according to claim 2, characterized in that, The two sets of drive mechanisms correspond to the heights of the two carrier components arranged on the upper and lower layers, respectively; each drive mechanism includes a servo motor, a first drive wheel, a second drive wheel, a third drive wheel, a fourth drive wheel, a second drive belt, and a toothed drive belt. The servo motor is mounted on the top of the mounting base plate via a mounting plate; The first transmission wheel is sleeved on the output shaft of the servo motor; the second transmission wheel is disposed on the outside of the mounting base plate and is connected to the first transmission wheel via the second transmission belt. The third and fourth transmission wheels are horizontally arranged on the inner side of the mounting base plate via auxiliary transmission shafts; wherein, the third transmission wheel is opposite to the second transmission wheel and is respectively sleeved on both ends of the corresponding auxiliary transmission shaft; the auxiliary transmission shaft rotatably passes through the mounting base plate; The transmission toothed belt is sleeved on the outside of the third transmission wheel and the fourth transmission wheel.

7. The single-sided driven dual-station alternating loading and unloading device according to claim 6, characterized in that, The mounting base plate is provided with an adjustment structure, which is arranged opposite to the fourth transmission wheel; The adjustment structure includes a movable block, an adjustment frame, and an adjustment screw. The movable block is sleeved on the end of the auxiliary transmission shaft connected to the fourth transmission wheel via a bearing. The movable block is slidably disposed within the adjustment frame, and both ends of the movable block are respectively connected to the adjustment frame via the adjustment screw. The mounting base plate has horizontally arranged strip-shaped holes for the installation and adjustment of the adjustment structure.

8. The single-sided driven dual-station alternating loading and unloading device according to claim 6, characterized in that, The bottom of the first movable plate is provided with teeth along its length, and the teeth are disposed above and mesh with the transmission toothed belt.

9. The single-sided driven dual-station alternating loading and unloading device according to claim 6, characterized in that, The mounting base plate is also provided with a support block extending along the direction of the transmission toothed belt. The support block extends to the inner side of the transmission toothed belt and supports the upper toothed belt of the transmission toothed belt.

10. The single-sided driven dual-station alternating loading and unloading device according to claim 1, characterized in that, A pre-installed wiring cable chain is provided on the inner side of the mounting base plate opposite to the driving mechanism along its length.

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