Receiving, transferring and conveying equipment
By designing a feeding and transfer equipment for workpiece oxidation treatment, the automatic transfer and synchronous work of the material rack is achieved by using two spaced conveyor trucks and lifting mechanisms, the problem of low workpiece processing efficiency in the prior art is solved and the production efficiency is significantly improved.
Patent Information
- Application Number
- CN202421824144.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In the prior art, during the oxidation process of workpieces, a single conveyor vehicle needs to stay in front of the solution tank frequently, resulting in low production and processing efficiency of workpieces.
A feeding and transfer equipment is designed, and two conveyor vehicles arranged at intervals along preset tracks are used to realize automatic transfer and transport of the material rack through the lifting mechanism and the suspension, so that the first conveyor vehicle and the second conveyor vehicle work simultaneously.
Through automatic transfer and synchronous work, the production and processing efficiency of workpieces is significantly improved, and manual participation and residence time is reduced.
Smart Images
Figure CN222934742U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a material receiving transfer and conveying device. Background Art
[0002] In the related art, when oxidizing some workpieces, a plurality of workpieces need to be hung on a rack, and the conveying vehicle drives the rack to move along a preset track. A plurality of solution tanks are sequentially distributed below the moving route of the rack. The workpieces on the rack need to be immersed in different solution tanks in sequence and for corresponding durations, so as to complete the complete processing flow of the workpieces. Therefore, a single conveying vehicle needs to stay at a certain solution tank for a period of time before driving the rack to move to the next solution tank, resulting in very low production and processing efficiency of the workpieces. If the plurality of solution tanks are divided into at least two groups of processes, and each group of processes is equipped with a conveying vehicle, manual participation is required to transfer the rack that has completed the previous process to the conveying vehicle corresponding to the next process, and there is also a problem of low production and processing efficiency. Content of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the purpose of the utility model is to provide a material receiving transfer and conveying device that can realize automatic transfer and conveying of the rack to improve production and processing efficiency.
[0004] A material receiving transfer and conveying device according to an embodiment of the utility model includes: a first conveying vehicle and a second conveying vehicle arranged at intervals in the front-back direction along a preset track. A first lifting mechanism is provided on the first conveying vehicle, and a first overhanging member is provided on the first lifting mechanism. A second lifting mechanism is provided on the second conveying vehicle, and a second overhanging member facing the first overhanging member is provided on the second lifting mechanism. The first overhanging member and the second overhanging member are parallel to each other and are arranged in a staggered manner in the vertical direction or the horizontal direction. A rack is detachably installed on the first overhanging member or the second overhanging member. First mounting slot holes and second mounting slot holes are arranged at intervals on the rack. The first overhanging member movably passes through the first mounting slot holes, and the second overhanging member can move with the second conveying vehicle to enter the second mounting slot holes. A driving mechanism for separating the first overhanging member from the first mounting slot holes is provided on the first conveying vehicle or the second conveying vehicle.
[0005] A material receiving transfer and conveying device according to an embodiment of the utility model has at least the following beneficial effects:
[0006] The feeding and transfer conveying equipment with the above structure uses the first conveying vehicle and the second conveying vehicle to move forward along a preset track. The first lifting mechanism drives the rack on the first overhanging member to move downward and immerse in the corresponding solution tank, and then the first lifting mechanism drives the rack to reset upward. The second overhanging member can move with the second conveying vehicle to enter the second mounting slot hole, and then the driving mechanism separates the first overhanging member from the first mounting slot hole to transfer the rack to the second conveying vehicle. Cooperating with the second lifting mechanism to drive the rack to move downward and immerse in other solution tanks, the first conveying vehicle and the second conveying vehicle work synchronously, improving the production and processing efficiency.
[0007] In some embodiments of the present invention, it further includes a frame. The frame is provided with a horizontally extending first linear slide rail and a second linear slide rail at intervals in the vertical direction. The first conveying vehicle is connected with a first linear driver for driving it to linearly reciprocate along the first linear slide rail, and the second conveying vehicle is connected with a second linear driver for driving it to linearly reciprocate along the second linear slide rail. The first overhanging member is a first plug column parallel to the first linear slide rail, and the second overhanging member is a second plug column parallel to the second linear slide rail. The first mounting slot hole is a first gourd hole with a larger bottom and a smaller top. The first plug column can extend into the larger end of the first gourd hole and abut against the smaller end of the first gourd hole. The second mounting slot hole is a second gourd hole with a larger bottom and a smaller top. The second plug column can extend into the larger end of the second gourd hole and abut against the smaller end of the second gourd hole. The driving mechanism includes a lifting seat slidably arranged up and down on the second conveying vehicle and a third linear driver for driving the lifting seat to reciprocate up and down. The second plug column is arranged on the lifting seat to be able to lift the rack to align the first plug column with the larger end of the first gourd hole.
[0008] In some embodiments of the present invention, the rack has a hanging plate. The first gourd hole and the second gourd hole penetrate through the hanging plate at intervals in the vertical direction. A first annular groove is provided on the outer peripheral wall of the middle part of the first plug column. The diameter size of the smaller end of the first gourd hole matches the diameter size of the bottom of the first annular groove. A second annular groove is provided on the outer peripheral wall of the middle part of the second plug column. The diameter size of the smaller end of the second gourd hole matches the diameter size of the bottom of the second annular groove.
[0009] In some embodiments of the present invention, the groove width sizes of the first annular groove and the second annular groove are consistent with the thickness size of the hanging plate.
[0010] In some embodiments of the present utility model, the first linear driver includes a first lead screw and a first motor for driving the first lead screw to rotate forward and backward. The second linear driver includes a second lead screw and a second motor for driving the second lead screw to rotate forward and backward. The first motor and the second motor are both connected to the control module.
[0011] In some embodiments of the present utility model, the first transport vehicle and / or the second transport vehicle is provided with a slewing mechanism for driving the material rack to rotate up and down.
[0012] In some embodiments of the present utility model, the slewing mechanism includes a runner rotatably arranged on the first transport vehicle. The first plug post is arranged on the side of the runner and is parallel to the rotation axis center of the runner and is eccentrically arranged relative to the runner.
[0013] In some embodiments of the present utility model, one end of the first plug post is threadedly connected to the side of the runner, and the second plug post is threadedly connected to the lifting seat.
[0014] In some embodiments of the present utility model, the runner is a worm wheel, and a worm meshing with the worm wheel is rotatably arranged on the first transport vehicle. The worm is connected to a rotation driver for driving it to rotate.
[0015] In some embodiments of the present utility model, a plurality of first solution tanks and second solution tanks are arranged below the first transport vehicle and the second transport vehicle on one side of the frame. The plurality of first solution tanks and the plurality of second solution tanks are sequentially arranged at intervals along the front of the first linear slide rail. The first linear driver drives the first transport vehicle to move between the plurality of first solution tanks, and the second linear driver drives the second transport vehicle to move between the plurality of second solution tanks.
[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0018] Figure 1 is a schematic structural diagram of an embodiment of the feeding transfer and conveying device of the present utility model;
[0019] Figure 2 is Figure 1 a partial structural diagram of another perspective of the embodiment;
[0020] Figure 3 When Figure 1 the rack of the embodiment is transferred from the first transport vehicle to the second transport vehicle, the schematic diagram of the state.
[0021] Reference numerals:
[0022] Rack 10; First mounting slot hole 11; Second mounting slot hole 12; Hanging plate 13; Frame 20; First linear slide rail 21; Second linear slide rail 22; First transport vehicle 100; First linear driver 110; Second transport vehicle 200; Second linear driver 210; First lifting mechanism 300; First insertion post 400; First annular groove 410; Second lifting mechanism 500; Second insertion post 600; Second annular groove 610; Driving mechanism 700; Lifting seat 710; Third linear driver 720; Rotary mechanism 800; Runner 810; Worm 820; Rotary driver 830; First solution tank 910; Second solution tank 920. Detailed implementation manners
[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0024] In the description of the present invention, it should be understood that for the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.
[0025] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] See Figures 1 to 3 , a material receiving and transferring conveying device according to an embodiment of the present utility model, comprising: a first conveying vehicle 100 and a second conveying vehicle 200 arranged at intervals in the front-rear direction along a preset trajectory. A first lifting mechanism 300 is provided on the first conveying vehicle 100, and a first overhanging member is provided on the first lifting mechanism 300. A second lifting mechanism 500 is provided on the second conveying vehicle 200, and a second overhanging member facing the first overhanging member is provided on the second lifting mechanism 500. The first overhanging member and the second overhanging member are parallel to each other and are arranged offset in the vertical direction or the horizontal direction. A material rack 10 is detachably installed on the first overhanging member or the second overhanging member. First mounting slot holes 11 and second mounting slot holes 12 are arranged at intervals on the material rack 10. The first overhanging member movably passes through the first mounting slot hole 11, and the second overhanging member can move with the second conveying vehicle 200 to enter the second mounting slot hole 12. A driving mechanism 700 for separating the first overhanging member from the first mounting slot hole 11 is provided on the first conveying vehicle 100 or the second conveying vehicle 200.
[0028] The material receiving and transferring conveying device with the above structure uses the first conveying vehicle 100 and the second conveying vehicle 200 to move forward along a preset trajectory. The first lifting mechanism 300 then drives the material rack 10 on the first overhanging member to move downward to be immersed in a corresponding solution tank, and then the first lifting mechanism 300 drives the material rack 10 to reset upward. The second overhanging member can move with the second conveying vehicle 200 to enter the second mounting slot hole 12. Then, by using the driving mechanism 700 to separate the first overhanging member from the first mounting slot hole 11, the material rack 10 can be transferred to the second conveying vehicle 200. Cooperating with the second lifting mechanism 500 to drive the material rack 10 to move downward to be immersed in other solution tanks, the first conveying vehicle 100 and the second conveying vehicle 200 work synchronously, improving the production and processing efficiency.
[0029] See Figure 1, in some embodiments of the present utility model, it further includes a frame 20. The frame 20 is provided with a horizontally extending first linear slide rail 21 and a second linear slide rail 22 arranged at intervals in the vertical direction. The first transporter 100 is connected with a first linear driver 110 for driving it to linearly reciprocate along the first linear slide rail 21, and the second transporter 200 is connected with a second linear driver 210 for driving it to linearly reciprocate along the second linear slide rail 22. Refer to Figure 2 , the first overhanging member is a first insertion post 400 parallel to the first linear slide rail 21, the second overhanging member is a second insertion post 600 parallel to the second linear slide rail 22. The first mounting slot 11 is a first gourd-shaped hole with a larger lower end and a smaller upper end. The first insertion post 400 can extend into the first gourd-shaped hole from the larger end and abut against the smaller end of the first gourd-shaped hole. The second mounting slot 12 is a second gourd-shaped hole with a larger lower end and a smaller upper end. The second insertion post 600 can extend into the second gourd-shaped hole from the larger end and abut against the smaller end of the second gourd-shaped hole. The driving mechanism 700 includes a lifting seat 710 slidably arranged up and down on the second transporter 200 and a third linear driver 720 for driving the lifting seat 710 to reciprocate up and down. The second insertion post 600 is arranged on the lifting seat 710 so as to be able to lift the rack 10 to align the first insertion post 400 with the larger end of the first gourd-shaped hole.
[0030] Specifically, a plurality of hooks are provided on the rack 10, and the workpieces to be processed are hung on the hooks. Refer to Figure 2 and Figure 3, the first insertion post 400 on the first transporter 100 is inserted into the larger end of the first gourd hole. Under the gravitational force of the rack 10 and multiple workpieces, the first insertion post 400 abuts against the smaller end of the first gourd hole. At this time, the rack 10 is relatively stable. Then, the first lifting mechanism 300 drives the rack 10 to move downward to immerse in a certain solution tank. After reaching the preset duration, the first lifting mechanism 300 drives the rack 10 to reset upward. Then, the second linear driver 210 drives the second transporter 200 to move closer to the rack 10, and the second insertion post 600 is inserted into the larger end of the second gourd hole. Then, the third linear driver 720 drives the lifting seat 710 to move upward. After the second insertion post 600 enters the smaller end of the second gourd hole, it continues to drive the first gourd hole to move upward relative to the first insertion post 400 until the larger end of the first gourd hole aligns with the first insertion post 400. Then, the second linear driver 210 drives the second transporter 200 to move forward, and the rack 10 can be completely transferred to the second transporter 200. At this time, the rack 10 is relatively stable, and the second lifting mechanism 500 drives the rack 10 to move downward to immerse in other solution tanks. It can be understood that the above-mentioned first insertion post 400 and second insertion post 600 are misaligned in the vertical direction. In other embodiments, the first overhanging member and the second overhanging member can also adopt a layout method of being misaligned in the horizontal direction. At this time, the first mounting slot hole 11 and the second mounting slot hole 12 can be replaced by two C-shaped grooves arranged opposite to each other in the horizontal direction, and the driving mechanism 700 drives the first overhanging member to enter or leave from the opening of the corresponding C-shaped groove.
[0031] See Figure 2 and Figure 3 , in some embodiments of the present invention, in order to prevent the rack 10 from falling off when sliding along the direction of the first linear slide rail 21 or the second linear slide rail 22, the rack 10 has a hanging plate 13. The first gourd hole and the second gourd hole are arranged to penetrate through the hanging plate 13 at intervals in the vertical direction. An outer peripheral wall of the middle part of the first insertion post 400 is provided with a first annular groove 410, and a diameter dimension of the smaller end of the first gourd hole matches a diameter dimension of the bottom of the first annular groove 410. An outer peripheral wall of the middle part of the second insertion post 600 is provided with a second annular groove 610, and a diameter dimension of the smaller end of the second gourd hole matches a diameter dimension of the bottom of the second annular groove 610. That is, the smaller ends of the first gourd hole and the second gourd hole can respectively catch the first insertion post 400 and the second insertion post 600.
[0032] See Figure 3, in some embodiments of the present utility model, in order to further prevent the relative movement of the rack 10 during transmission, the groove width dimensions of the first annular groove 410 and the second annular groove 610 are consistent with the thickness dimension of the hanging plate 13, that is, the first insertion post 400 is clamped with the smaller end of the first gourd hole, and the second insertion post 600 is clamped with the smaller end of the second gourd hole.
[0033] See Figure 1 , in some embodiments of the present utility model, the first linear driver 110 includes a first lead screw and a first motor for driving the first lead screw to rotate forward and backward, the second linear driver 210 includes a second lead screw and a second motor for driving the second lead screw to rotate forward and backward, and the first motor and the second motor are both connected to the control module. It can be understood that by controlling the rotation angle of the motor shafts of the first motor and the second motor, the moving distances of the first transport vehicle 100 and the second transport vehicle 200 can be accurately controlled. Of course, in other embodiments, the first linear driver 110 and the second linear driver 210 can also be replaced by air cylinders.
[0034] See Figure 1 and Figure 2 , in some embodiments of the present utility model, in order to improve the contact efficiency between the solution and the workpiece on the rack 10, the first transport vehicle 100 and / or the second transport vehicle 200 is provided with a rotary mechanism 800 for driving the rack 10 to rotate up and down, that is, the rotary mechanism 800 can drive the rack 10 to stir the solution in the solution tank, which is beneficial to the full contact or full reaction between the solution and the workpiece.
[0035] See Figure 2 , in some embodiments of the present utility model, the rotary mechanism 800 includes a runner 810 rotatably arranged on the first transport vehicle 100, the first insertion post 400 is arranged on the side of the runner 810, and the first insertion post 400 is parallel to the rotation axis center of the runner 810 and is eccentrically arranged relative to the runner 810. The structure of the above rotary mechanism 800 is very simple, the action is reliable, and the cost is low.
[0036] See Figure 2 , in some embodiments of the present utility model, one end of the first insertion post 400 is threadedly connected to the side of the runner 810, and the second insertion post 600 is threadedly connected to the lifting seat 710. It should be noted that the size specifications of the first gourd hole and the second gourd hole on different racks 10 may be different, or the first insertion post 400 and the second insertion post 600 may be damaged after being used for a period of time. Through the above structure, the free replacement of the first insertion post 400 and the second insertion post 600 can be realized.
[0037] See Figure 2 andFigure 3 , in some embodiments of the present utility model, the runner 810 is a worm wheel, a worm 820 meshing with the worm wheel is rotatably arranged on the first transporter 100, and the worm 820 is connected with a rotary driver 830 for driving its rotation. The rotary driver 830 drives the worm 820 to rotate, and the worm 820 drives the runner 810 to rotate slowly, thereby driving the rack 10 mounted on the first plug post 400 to perform a relatively slow up-and-down rotary motion.
[0038] See Figure 1 , in some embodiments of the present utility model, a plurality of first solution tanks 910 and second solution tanks 920 are arranged below the first transporter 100 and the second transporter 200 on one side of the frame 20. The plurality of first solution tanks 910 and the plurality of second solution tanks 920 are sequentially arranged at intervals along the front of the first linear slide rail 21. The first linear driver 110 drives the first transporter 100 to move between the plurality of first solution tanks 910, and the second linear driver 210 drives the second transporter 200 to move between the plurality of second solution tanks 920. In this embodiment, there are two first solution tanks 910 and three second solution tanks 920. When the first transporter 100 drives a rack 10 to be immersed in the two first solution tanks 910, the second transporter 200 can also drive another rack 10 to be immersed in the three second solution tanks 920, and the rack 10 is transferred between adjacent first solution tanks 910 and second solution tanks 920.
[0039] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0040] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A material transfer and conveying device, characterized in that: include: A first transport vehicle (100) and a second transport vehicle (200) are arranged at intervals in the front-to-back direction along a preset track, the first transport vehicle (100) is provided with a first lifting mechanism (300), the first lifting mechanism (300) is provided with a first overhanging member, the second transport vehicle (200) is provided with a second lifting mechanism (500), the second lifting mechanism (500) is provided with a second overhanging member facing the first overhanging member, the first overhanging member and the second overhanging member are parallel to each other and staggered in the vertical direction or the horizontal direction, the first overhanging member Alternatively, the second overhanging member is detachably mounted with a material rack (10), the material rack (10) is provided with a first mounting slot hole (11) and a second mounting slot hole (12) at intervals, the first overhanging member is movably inserted into the first mounting slot hole (11), the second overhanging member can follow the movement of the second transport vehicle (200) to enter the second mounting slot hole (12), and the first transport vehicle (100) or the second transport vehicle (200) is provided with a driving mechanism (700) for driving the first overhanging member to separate from the first mounting slot hole (11).
2. The material transfer and conveying equipment according to claim 1, characterized in that: The machine also includes a frame (20), wherein the frame (20) is provided with a first linear slide rail (21) and a second linear slide rail (22) extending horizontally and spaced apart in a vertical direction; the first transport vehicle (100) is connected to a first linear driver (110) for driving it to move linearly back and forth along the first linear slide rail (21); the second transport vehicle (200) is connected to a second linear driver (210) for driving it to move linearly back and forth along the second linear slide rail (22); the first overhanging member is a first plug-in column (400) parallel to the first linear slide rail (21); the second overhanging member is a second plug-in column (600) parallel to the second linear slide rail (22); the first mounting slot (11) is a first gourd-shaped hole with a larger bottom and a smaller top. The first plug-in column (400) can extend from the larger end of the first gourd hole and abut against the smaller end of the first gourd hole. The second mounting slot (12) is a second gourd hole that is larger at the bottom and smaller at the top. The second plug-in column (600) can extend from the larger end of the second gourd hole and abut against the smaller end of the second gourd hole. The driving mechanism (700) includes a lifting seat (710) that slides up and down on the second transport vehicle (200) and a third linear drive (720) that drives the lifting seat (710) to reciprocate. The second plug-in column (600) is arranged on the lifting seat (710) so as to be able to lift the material rack (10) to the larger end of the first gourd hole so that the first plug-in column (400) is aligned with the first gourd hole.
3. A material transfer and conveying device according to claim 2, characterized in that: The material rack (10) has a mounting plate (13), the first gourd hole and the second gourd hole are arranged to penetrate the mounting plate (13) at intervals along the vertical direction, the outer peripheral wall of the middle part of the first plug-in column (400) is provided with a circle of first annular grooves (410), and the diameter size of the smaller end of the first gourd hole matches the diameter size of the groove bottom of the first annular groove (410), and the outer peripheral wall of the middle part of the second plug-in column (600) is provided with a circle of second annular grooves (610), and the diameter size of the smaller end of the second gourd hole matches the diameter size of the groove bottom of the second annular groove (610).
4. The material transfer and conveying device according to claim 3 is characterized in that: The groove width dimensions of the first annular groove (410) and the second annular groove (610) are consistent with the thickness dimension of the mounting plate (13).
5. The material transfer and conveying equipment according to claim 2, characterized in that: The first linear drive (110) comprises a first lead screw and a first motor driving the first lead screw to rotate forward and reversely, and the second linear drive (210) comprises a second lead screw and a second motor driving the second lead screw to rotate forward and reversely, and the first motor and the second motor are both connected to a control module.
6. The material transfer and conveying equipment according to claim 2, characterized in that: The first transport vehicle (100) and / or the second transport vehicle (200) is provided with a rotating mechanism (800) for driving the material rack (10) to rotate up and down.
7. The material transfer and conveying device according to claim 6, characterized in that: The rotating mechanism (800) includes a rotating wheel (810) rotatably disposed on the first transport vehicle (100), the first plug-in column (400) being disposed on the side of the rotating wheel (810), and the first plug-in column (400) being parallel to the center of the rotating shaft of the rotating wheel (810) and eccentrically disposed relative to the rotating wheel (810).
8. The material transfer and conveying equipment according to claim 7, characterized in that: One end of the first plug-in column (400) is threadedly connected to the side of the rotating wheel (810), and the second plug-in column (600) is threadedly connected to the lifting seat (710).
9. The material transfer and conveying device according to claim 7, characterized in that: The rotating wheel (810) is a worm wheel, and a worm (820) meshing with the worm wheel is rotatably provided on the first transport vehicle (100), and the worm (820) is connected to a rotary driver (830) for driving the worm (820) to rotate.
10. The material transfer and conveying equipment according to claim 2, characterized in that: A plurality of first solution tanks (910) and second solution tanks (920) are provided on one side of the frame (20) and are located below the first transport vehicle (100) and the second transport vehicle (200). The plurality of first solution tanks (910) and the plurality of second solution tanks (920) are sequentially spaced in front of the first linear slide rail (21). The first linear drive (110) drives the first transport vehicle (100) to move between the plurality of first solution tanks (910), and the second linear drive (210) drives the second transport vehicle (200) to move between the plurality of second solution tanks (920).