Automatic collecting and stacking device and method for plug trays

Abstract

The invention discloses a device and a method for automatically collecting and stacking hole trays. The device comprises a control system, a hole-aligning insertion mechanism, a lifting device, a transverse pushing device and a stacking locking mechanism, the initial position of the hole-aligning insertion mechanism is located at the upper part of the plug recovery box body, the hole-aligning insertion mechanism comprises an insertion rod mechanism and a driving mechanism I for driving the insertion rod mechanism to rotate, the insertion rod mechanism acts on a plurality of water leakage holes in the bottom of the plug, and the two sides of the hole-aligning insertion mechanism are fixedly connected with lifting devices arranged on the left and right sides of the plug recovery box body; the transverse pushing device is arranged at the bottom of the plug tray recycling box body and comprises a rake-shaped pushing rod which is driven by a driving mechanism II to move and acts on a plurality of rows of grooves in the bottom of the plug tray, a hole tray is further arranged in the plug tray recycling box body and is in contact with a spring pushing plate, and a pushing plate spring is arranged between the spring pushing plate and the inner wall of the plug tray recycling box body; when the plug tray is pushed by the rake-shaped push rod to be in contact with the hole tray, the plug tray is clamped through the stacking locking mechanisms installed on the two sides of the plug tray recycling box body.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a device and method for automatically collecting and stacking plug trays. Background Art

[0002] At present, vegetable production has become the second largest crop in my country's planting industry after grain. my country is the world's largest producer and consumer of vegetables. With the improvement of people's living standards, the demand for vegetables is becoming increasingly strong, and the planting area and yield of vegetables are on the rise. The corresponding vegetable transplanting machinery is also developing accordingly. The mechanized automatic transplanting technology of plug seedlings has been widely used in the production of crops such as tobacco, rapeseed, cotton and vegetables.

[0003] With the development of agricultural modernization technology, the hole tray transplanter has gradually improved in terms of hole tray transportation, seedling picking and planting. The existing transplanters are generally not equipped with empty hole tray recovery devices. The empty hole trays will fall freely after transplanting and be picked up manually. There are problems such as falling trays and crushing seedlings, and the later collection of empty hole trays is time-consuming and laborious. Failure to collect them in time will also cause problems for the environment. In addition, the existing hole tray recovery devices are usually too large, occupying space, and the empty tray transportation mechanism is complicated, and it is easy to block the tray.

[0004] The present invention is achieved through the following technical solutions: A plug tray automatic collection and stacking device, comprising a control system and a hole insertion mechanism, a lifting device, a lateral pushing device, and a stacking locking mechanism located in a plug tray recovery box; The initial position of the hole insertion mechanism is located at the upper part of the hole tray recovery box, and the hole insertion mechanism includes an insertion rod mechanism and a driving mechanism I for driving the insertion rod mechanism to rotate. The insertion rod mechanism acts on a plurality of water leakage holes at the bottom of the hole tray transported by the hole tray transporting device. The two sides of the hole insertion mechanism are fixedly connected to the lifting devices arranged on the left and right sides of the hole tray recovery box, and the hole insertion mechanism is driven to rise or fall by the lifting devices; The lateral pushing device is installed at the bottom of the hole tray recovery box, and includes a rake-shaped push rod driven by the driving mechanism II to move and act on a plurality of rows of grooves at the bottom of the hole tray. An empty hole tray parallel to the vertically arranged rake-shaped push rod is also provided inside the hole tray recovery box. The empty hole tray is in contact with a spring push plate, and a push plate spring is provided between the spring push plate and the inner wall of the hole tray recovery box. When the hole tray contacts the empty hole tray under the push of the rake-shaped push rod, the hole tray is clamped by the stacking locking mechanism installed on both sides of the hole tray recovery box. A sensor A for detecting the hole tray conveying position and the leakage hole signal at the bottom of the hole tray is installed on the upper part of the hole tray recovery box, a sensor B for detecting the hole tray arrival signal is installed at the bottom of the hole tray recovery box, and a sensor C for detecting the position of the spring push plate is installed in the middle of the hole tray recovery box. The control system is electrically connected to sensor A, sensor B, sensor C, the hole insertion mechanism, the lifting device, and the lateral pushing device respectively.

[0005] Furthermore, the plugging mechanism includes a plurality of plugging push rods acting on the first row of water leakage holes at the bottom of the plug tray, the rods of the plurality of plugging push rods penetrate the horizontally arranged rotating body, the plugging push rods are driven by a cylinder arranged on the rotating body to move as a whole, and the left and right sides of the rotating body are respectively installed on two fixed blocks through a rotating shaft; The driving mechanism I includes a rotating motor installed on one of the fixed blocks, which drives the rotating body and the jack push rod to rotate through a meshing gear mechanism, and the two fixed blocks are fixedly connected to the lifting devices arranged on the left and right sides of the hole tray recovery box.

[0006] Furthermore, the diameter of the rod portion of the jack push rod is smaller than the diameter of the water leakage hole of the plug tray.

[0007] Furthermore, the gear mechanism includes a driving gear matched with the rotating shaft and a driven gear matched with the rotating body.

[0008] Furthermore, the lifting device includes guide rails installed on both sides of the hole tray recovery box, and the hole insertion mechanism is driven by a motor to rise or fall.

[0009] Furthermore, the stacking locking mechanism is installed in an installation frame on both sides of the middle part of the hole tray recovery box, and includes a rotating shaft, a movable baffle, a telescopic spring, and a fixed baffle. The movable baffle is movably connected to the installation frame through a rotating shaft, one end of the fixed baffle is fixedly connected to the installation frame, and the other end of the fixed baffle is suspended, and the telescopic spring is located between the movable baffle and the fixed baffle.

[0010] Furthermore, the telescopic spring is made of low manganese spring steel, and the push plate spring is made of chrome vanadium steel.

[0011] Furthermore, the rake-shaped push rod includes a plurality of vertically arranged push rods, which are supported by support rods horizontally arranged at the bottom. The driving mechanism II is a guide rail motor. The bottom of the support rod is slidably connected to the guide rail through a slider. The guide rail motor drives the slider to slide, thereby driving the rake-shaped push rod to move.

[0012] Furthermore, a guide baffle for guiding the hole tray to move downward is vertically arranged on one side of the hole insertion mechanism at the upper part of the hole tray recovery box.

[0013] The present invention also provides a method for automatically recovering and stacking plug trays, the specific method being: S1. The plug tray is transported by a horizontally arranged plug tray conveying device, and the plug tray is transported downward at the end of the conveying device under the limit of the slots on both sides; S2, the plug tray moves downward along the guide baffle under the guidance of the guide baffle, and after the sensor A detects the first row of water leakage holes in the plug tray, it immediately transmits the signal to the control system, and the control system transmits the signal to the hole insertion mechanism; S3, the rotary motor of the hole insertion mechanism drives the insertion rod mechanism to rotate through the gear mechanism, adjusts the posture of the jack push rod, and at the same time drives the cylinder to drive the jack push rod to move a certain distance to insert into the first row of water leakage holes in the plug tray. After completing the above action, the control system transmits a signal to the lifting device to pull the plug tray down; S4, after the sensor B at the bottom of the hole tray recovery box detects the hole tray arrival signal, the arrival signal is transmitted to the control system, and the control system then transmits the signal to the lateral pushing device, so that the rake-shaped push rod moves laterally against the plurality of rows of grooves at the bottom of the hole tray; S5, after the rake-shaped push rod moves a certain distance, the hole tray falls off from the plug-in push rod, the lifting device drives the hole insertion mechanism to rise, and the cylinder drives the plug-in push rod back to the initial position to wait for the next command; S6, the rake-shaped push rod continues to push the hole tray to move horizontally, and after it moves to the position of the stacking locking mechanism, the movable baffle is closed under the pressure of the hole tray, and the telescopic spring is in a compressed state at this time; after the hole tray passes through the stacking locking mechanism, the movable baffle is opened under the action of the telescopic spring; S7, after the hole tray passes through the stacking locking mechanism, it contacts the empty hole tray on the spring push plate under the push of the rake-shaped push rod, and the hole tray and the empty hole tray are stacked. At the same time, the spring push plate compresses the push plate spring. After the sensor C detects the compression signal, it transmits the signal to the control system, and the control system transmits the signal to the lateral pushing device to control the rake-shaped push rod to return to the initial position; S8, the spring push plate moves under the action of the push plate spring, and when it moves to the opened movable baffle, the movable baffle presses against the edge groove of the hole tray to complete the locking, and the reciprocating operation is repeated until the hole tray compresses the spring push plate to the set position, and the sensor C transmits a signal to the control system, and then reminds the control system to take out the stacked hole trays by opening and closing the door.

[0014] The beneficial effects of the present invention are: 1. The present invention drives the hole insertion mechanism to rotate through the gear mechanism and the cylinder, and can adjust the direction of the rod insertion device, and adjust the angle of the seedling tray conveying, and can adapt to different seedling tray conveying devices and transplanting work occasions; 2. The present invention realizes the integration of hole disk recovery and stacking, abandons the traditional conveyor belt structure, adopts a lateral pushing device for traction, greatly reduces the volume occupied by the hole disk recovery device, and does not cause the disk to be blocked, making the hole disk recovery more orderly; 3. The stack locking mechanism of the present invention adopts a simple spring baffle structure for locking, which reduces the complicated control process and makes it easier to realize the stack locking function; 4. The various components in the present invention are driven by motors and cylinders. The overall device not only facilitates the control system to perform mechanical operations effectively and stably, but also has a compact structure, simple operation and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a position diagram of the present invention and the seedling tray conveying device; Figure 2 is an isometric view of the present invention; Figure 3 It is a schematic diagram of the hole insertion mechanism of the present invention; Figure 4 It is a schematic diagram of the lateral pushing device of the present invention; Figure 5 It is a schematic diagram of the locking mechanism of the present invention; 1. Hole tray, 2. Hole tray conveying device, 3. Hole insertion mechanism, 301. Rotating motor, 302. Fixed block, 303. Driving gear, 304. Driven gear, 305. Cylinder, 306. Jack push rod, 307. Rotating body, 308. Rotating shaft, 4. Control system, 5. Spring push plate, 6. Stacking locking mechanism, 601. Rotating shaft, 602. Movable baffle, 603. Telescopic spring, 604. Fixed baffle, 7. Opening and closing door, 8. Lifting device, 9. Lateral pushing device, 901. Rake-shaped push rod, 902. Sliding block, 903. Guide screw, 904. Guide motor, 10. Sensor A, 11. Guide baffle, 12. Push plate spring, 13. Sensor C, 14. Hole tray, 15. Hole tray recovery box. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below according to the accompanying drawings.

[0017] Embodiment 1: As shown in the figure, an automatic hole tray collection and stacking device includes a control system 4 and a hole insertion mechanism 3, a lifting device 8, a lateral pushing device 9, and a stacking locking mechanism 6 located in a hole tray recovery box 15; the hole tray recovery box 15 is the frame of the entire automatic hole tray collection and stacking device, serving as a frame carrier of the structure and device.

[0018] The initial position of the hole insertion mechanism 3 is located at one end of the upper part of the hole tray recovery box 15. The hole insertion mechanism 3 includes an insertion rod mechanism and a driving mechanism I that drives the insertion rod mechanism to rotate. The insertion rod mechanism acts on a plurality of water leakage holes in the first row at the bottom of the hole tray 1 transported by the hole tray conveying device 2. Both sides of the hole insertion mechanism 3 are fixedly connected to the lifting devices 8 arranged on the left and right sides of the hole tray recovery box 15, and the hole insertion mechanism 3 is driven to rise or fall by the lifting device 8; Preferably, the plugging mechanism includes a plurality of plugging push rods 306 acting on the first row of water leakage holes at the bottom of the plug tray. The rods of the plurality of plugging push rods 306 penetrate the horizontally arranged rotating body 307. The diameter of the rods of the plugging push rods 306 is smaller than the diameter of the water leakage holes of the plug tray, so as to facilitate insertion into the water leakage holes of the plug tray to complete traction. The plugging push rods 306 are driven to move as a whole by a cylinder 305 arranged on the rotating body 307. The left and right sides of the rotating body 307 are respectively installed on two fixed blocks 302 through rotating shafts 308; The driving mechanism I includes a rotating motor 301 installed on one of the fixed blocks, and the rotating motor 301 drives the rotating body 307 and the jack push rod 306 to rotate through a meshing gear mechanism, and the two fixed blocks 302 are fixedly connected to the lifting devices 8 arranged on the left and right sides of the hole tray recovery box 15, driving the entire hole insertion mechanism to rise and fall; the gear mechanism includes a driving gear 303 cooperating with the rotating shaft 308 and a driven gear 304 cooperating with the rotating body 307.

[0019] The lifting device 8 includes guide rails installed on both sides of the hole tray recovery box 15. One side of the guide rail is driven by a motor to raise or lower the hole insertion mechanism 3, and the other side of the guide rail only provides support.

[0020] The lateral pushing device 9 is installed at the bottom of the hole tray recovery box 15, and includes a rake-shaped push rod 901 driven by the driving mechanism II to move and act on a plurality of rows of grooves at the bottom of the hole tray. An empty hole tray 14 parallel to the vertically arranged rake-shaped push rod is also provided inside the hole tray recovery box 15. The empty hole tray 14 is in contact with the spring push plate 5, and a push plate spring 12 is provided between the spring push plate 5 and the inner wall of the hole tray recovery box 15. When the hole tray 1 contacts the empty hole tray 14 under the push of the rake-shaped push rod, the hole tray 1 is clamped by the stacking locking mechanism 6 installed on both sides of the hole tray recovery box 15; The rake-like push rod 901 includes a plurality of vertically arranged push rods, and the plurality of push rods are supported by a support rod horizontally arranged at the bottom. The driving mechanism II is a guide rail motor 904, and the bottom of the support rod is slidably connected to the guide rail through a slider 902. The guide rail motor 904 drives the guide rail screw 903 to slide the slider, thereby driving the rake-like push rod 901 to move. The guide rail installation position is lower than the bottom surface of the hole tray recovery box 15 to prevent the lateral pushing device from interfering with the hole tray. The rake-like push rod 901 in the lateral pushing device 9 and the socket push rod 301 in the hole insertion mechanism 3 act on the groove at the bottom of the hole tray and the water leakage hole respectively, and the two do not interfere with each other during the action process. The groove corresponding to the rake-like push rod 901 is the gap between the bottoms of several rows of hole trays. A sensor A10 for detecting the hole tray conveying position and the signal of the first row of leakage holes in the hole tray is installed on the upper part of the hole tray recovery box 15, a sensor B for detecting the hole tray arrival signal is installed at the bottom of the hole tray recovery box 15, and a sensor C13 for detecting the position of the spring push plate 5 is installed in the middle of the hole tray recovery box 15. The control system 4 can be located outside the hole tray recovery box 15; the control system 4 is electrically connected to the sensor A10, sensor B, sensor C13, the hole insertion mechanism 3, the lifting device 8, and the lateral pushing device 9 respectively.

[0021] Sensor A10 transmits the corresponding signal to the control system 4, and the control system 4 transmits the hole position signal of the first row of the hole tray to the hole insertion mechanism 3, and the hole insertion mechanism drives the motor to rotate through the gear driving mechanism to adjust the posture of the jack device, and then the cylinder driving the jack device drives the jack mechanism to move a certain distance and insert it into the first row of holes in the hole tray; after completing the action, sensor A will complete the signal and transmit it to the control system, and the control system will transmit the in-position signal to the lifting device 8 to control its rise and fall; the sensor B is installed at the bottom of the hole tray recovery box to detect the in-position signal of the empty hole tray, and transmit the in-position signal to the control system 4, and the control system 4 then transmits the signal to the lateral pushing device 9 to control the lateral movement of the lateral pushing device 9; after the hole trays are stacked to compress the spring baffle to the limit position, the sensor C transmits the signal to the control system.

[0022] Furthermore, the stacking locking mechanism 6 is installed in the installation frame on both sides of the middle part of the hole tray recovery box 15, which includes a rotating shaft 601, a movable baffle 602, a telescopic spring 603, and a fixed baffle 604. The movable baffle 602 is movably connected to the installation frame through the rotating shaft 601, one end of the fixed baffle 604 is fixedly connected to the installation frame, and the other end of the fixed baffle 604 is suspended. The telescopic spring 603 is located between the movable baffle 602 and the fixed baffle 604, and the telescopic spring 603 controls the switch of the movable baffle 602.

[0023] Further, the telescopic spring 603 is made of low manganese spring steel, which has good hardenability and high strength and is suitable for springs of smaller size. The push plate spring 12 is made of chrome vanadium steel, which has good fatigue resistance and impact resistance.

[0024] Furthermore, a guide baffle 11 for guiding the cell tray 1 to move downward is vertically arranged on one side of the hole insertion mechanism 3 at the upper part of the cell tray recovery box 15 , and the sensor A10 can be arranged on the guide baffle 11 .

[0025] The present invention also provides a method for automatically recovering and stacking plug trays, the specific method being: S1, the plug tray 1 is transported by the plug tray conveying device 2, and the plug tray 1 is transported downward at the end of the conveying device 2 under the limit of the slots on both sides; S2, the hole tray 1 moves downward along the guide baffle 11, and after the sensor A10 detects the first row of water leakage holes in the hole tray 11, it immediately transmits the signal to the control system 4, and the control system 4 transmits the signal to the hole insertion mechanism 3; S3, the rotating motor 301 of the hole insertion mechanism 3 drives the insertion rod mechanism to rotate through the gear mechanism, adjusts the posture of the hole insertion push rod 306, and drives the cylinder 305 to drive the hole insertion push rod 306 to move a certain distance to insert into the first row of water leakage holes of the plug tray 1. After completing the above action, the control system 4 transmits a signal to the lifting device 8, pulling the plug tray 1 down; S4, after the sensor B at the bottom of the cell tray recovery box 15 detects the arrival signal of the cell tray 1, the arrival signal is transmitted to the control system 4, and the control system 4 then transmits the signal to the lateral pushing device 9, so that the rake-shaped push rod 901 moves laterally against the plurality of rows of grooves at the bottom of the cell tray 1; S5, after the rake-shaped push rod 901 moves a certain distance, the hole tray 1 falls off from the plug-in push rod 306, the lifting device 8 drives the hole insertion mechanism 3 to rise, and the cylinder 305 drives the plug-in push rod 306 to return to the initial position to wait for the next command; S6, the rake-shaped push rod 901 continues to push the cell tray 1 to move horizontally, and after it moves to the position of the stacking locking mechanism 6, the movable baffle 602 is closed under the pressure of the cell tray 1, and the telescopic spring 603 is in a compressed state; after the cell tray 1 passes through the stacking locking mechanism 6, the movable baffle 602 is opened under the force of the telescopic spring 603; S7, after the hole tray 1 passes through the stacking locking mechanism 6, it contacts the hole tray 14 on the spring push plate 5 under the push of the rake-shaped push rod 901, and the hole tray 1 and the empty hole tray 14 are stacked. At the same time, the spring push plate 5 compresses the push plate spring 12. After the sensor C13 detects the compression signal, it transmits the signal to the control system 4. The control system 4 transmits the signal to the lateral pushing device 9 to control the rake-shaped push rod 901 to return to the initial position; S8, the spring push plate 5 moves under the action of the push plate spring 12, and when it moves to the opened movable baffle 602, the movable baffle 602 presses against the edge groove of the hole tray 1 to complete the locking, and the reciprocating operation is repeated until the hole tray compresses the spring push plate 5 to the set position, and the sensor C13 transmits a signal to the control system 4, and then reminds the control system 4 to take out the stacked hole trays through the switch door 7.

[0026] It should be noted that although the present invention is described by the above embodiments, the present invention may also have other various embodiments. Without departing from the spirit and scope of the present invention, it is obvious that those skilled in the art may make various corresponding changes and deformations to the present invention, but these changes and deformations should all fall within the scope of protection of the appended claims of the present invention and their equivalents.

Claims

1. A device for automatically collecting and stacking plug trays, characterized in that: It comprises a control system (4) and a hole insertion mechanism (3), a lifting device (8), a lateral pushing device (9), and a stacking locking mechanism (6) located in a hole tray recovery box (15); The initial position of the hole insertion mechanism (3) is located on the upper part of the cell tray recovery box (15). The hole insertion mechanism (3) comprises an insertion rod mechanism and a driving mechanism I for driving the insertion rod mechanism to rotate. The insertion rod mechanism acts on a plurality of water leakage holes at the bottom of the cell tray (1) transported by the cell tray transport device (2). Both sides of the hole insertion mechanism (3) are fixedly connected to the lifting devices (8) arranged on the left and right sides of the cell tray recovery box (15), and the hole insertion mechanism (3) is driven to rise or fall by the lifting devices (8); The lateral pushing device (9) is installed at the bottom of the hole tray recovery box (15), and includes a rake-shaped push rod (901) driven by the driving mechanism II to move and act on a plurality of rows of grooves at the bottom of the hole tray. An empty hole tray (14) parallel to the vertically arranged rake-shaped push rod is also provided inside the hole tray recovery box (15). The empty hole tray (14) is in contact with the spring push plate (5), and a push plate spring (12) is provided between the spring push plate (5) and the inner wall of the hole tray recovery box (15). When the hole tray (1) contacts the empty hole tray (14) under the push of the rake-shaped push rod, the hole tray (1) is clamped by the stacking locking mechanism (6) installed on both sides of the hole tray recovery box (15); A sensor A (10) for detecting a hole tray conveying position and a signal of a water leakage hole at the bottom of the hole tray is installed on the upper part of the hole tray recovery box (15), a sensor B for detecting a hole tray arrival signal is installed at the bottom of the hole tray recovery box (15), and a sensor C (13) for detecting a position of a spring push plate (5) is installed in the middle of the hole tray recovery box (15). The control system (4) is electrically connected to the sensor A (10), the sensor B, the sensor C (13), the hole insertion mechanism (3), the lifting device (8), and the lateral pushing device (9), respectively.

2. The automatic plug tray collection and stacking device according to claim 1, characterized in that: The plugging rod mechanism comprises a plurality of plugging rods (306) acting on the first row of water leakage holes at the bottom of the plug tray, the rods of the plurality of plugging rods (306) passing through a transversely arranged rotating body (307), the plugging rods (306) being driven to move as a whole by a cylinder (305) arranged on the rotating body (307), and the left and right sides of the rotating body (307) being respectively mounted on two fixed blocks (302) via a rotating shaft (308); The driving mechanism I comprises a rotating motor (301) mounted on one of the fixed blocks, the rotating motor (301) driving the rotating body (307) and the plug push rod (306) to rotate through meshing gear mechanisms, and the two fixed blocks (302) are fixedly connected to the lifting devices (8) arranged on the left and right sides of the hole tray recovery box (15).

3. The automatic plug tray collection and stacking device according to claim 2, characterized in that: The diameter of the rod portion of the plugging rod (306) is smaller than the diameter of the water leakage hole of the plug tray.

4. The automatic plug tray collection and stacking device according to claim 2, characterized in that: The gear mechanism comprises a driving gear (303) matched with a rotating shaft (308) and a driven gear (304) matched with a rotating body (307).

5. The automatic plug tray collection and stacking device according to claim 1, characterized in that: The lifting device (8) comprises guide rails installed on both sides of the hole tray recovery box (15), and is driven by a motor to lift or lower the hole insertion mechanism (3).

6. The automatic plug tray collection and stacking device according to claim 1, characterized in that: The stacking locking mechanism (6) is installed in the installation frame on both sides of the middle part of the hole tray recovery box (15), and comprises a rotating shaft (601), a movable baffle (602), a telescopic spring (603), and a fixed baffle (604). The movable baffle (602) is movably connected to the installation frame through the rotating shaft (601), one end of the fixed baffle (604) is fixedly connected to the installation frame, and the other end of the fixed baffle (604) is suspended. The telescopic spring (603) is located between the movable baffle (602) and the fixed baffle (604).

7. The automatic plug tray collection and stacking device according to claim 6, characterized in that: The telescopic spring (603) is made of low manganese spring steel, and the push plate spring (12) is made of chrome vanadium steel.

8. The automatic plug tray collection and stacking device according to claim 1, characterized in that: The rake-shaped push rod (901) comprises a plurality of vertically arranged push rods, which are supported by support rods arranged horizontally at the bottom. The driving mechanism II is a guide rail motor (904). The bottom of the support rod is slidably connected to the guide rail via a slider (902). The guide rail motor (904) drives the slider to slide, thereby driving the rake-shaped push rod (901) to move.

9. The automatic plug tray collection and stacking device according to claim 1, characterized in that: A guide baffle (11) for guiding the cell tray (1) to move downward is also vertically arranged on one side of the hole insertion mechanism (3) at the upper part of the cell tray recovery box (15).

10. The method for automatically collecting and stacking plug trays according to any one of claims 1 to 9, characterized in that: The specific method is: S1, the plug tray (1) is transported by a horizontally arranged plug tray transport device (2), and the plug tray (1) is transported downward at the end of the transport device (2) under the limit of the slots on both sides; S2, the plug tray (1) moves downward along the guide baffle plate under the guidance of the guide baffle plate (11), and after the sensor A (10) detects the first row of water leakage holes of the plug tray (11), it immediately transmits the signal to the control system (4), and the control system (4) transmits the signal to the hole insertion mechanism (3); S3, the rotating motor (301) of the hole insertion mechanism (3) drives the insertion rod mechanism to rotate through the gear mechanism, adjusts the posture of the hole insertion push rod (306), and at the same time drives the cylinder (305) to drive the hole insertion push rod (306) to move a certain distance and insert into the first row of water leakage holes of the hole tray (1). After completing the above action, the control system (4) transmits a signal to the lifting device (8), pulling the hole tray (1) down; S4, after the sensor B at the bottom of the cell tray recovery box (15) detects a signal indicating that the cell tray (1) is in position, the signal is transmitted to the control system (4), and the control system (4) then transmits the signal to the lateral pushing device (9), so that the rake-shaped push rod (901) moves laterally against a plurality of rows of grooves at the bottom of the cell tray (1); S5, after the rake-shaped push rod (901) moves a certain distance, the hole tray (1) falls off from the plug-in push rod (306), the lifting device (8) drives the hole insertion mechanism (3) to rise, and the cylinder (305) drives the plug-in push rod (306) to return to the initial position to wait for the next command; S6, the rake-shaped push rod (901) continues to push the cell tray (1) to move horizontally, and after it moves to the position of the stacking locking mechanism (6), the movable baffle (602) is closed under the action of the pressure of the cell tray (1), and the telescopic spring (603) is in a compressed state; after the cell tray (1) passes through the stacking locking mechanism (6), the movable baffle (602) is opened under the action of the telescopic spring (603); S7, after the hole tray (1) passes through the stacking locking mechanism (6), it contacts the hole tray (14) on the spring push plate (5) under the push of the rake-shaped push rod (901), and the hole tray (1) and the empty hole tray (14) are stacked. At the same time, the spring push plate (5) compresses the push plate spring (12), and the sensor C (13) detects the compression signal and transmits the signal to the control system (4). The control system (4) transmits the signal to the lateral push device (9) to control the rake-shaped push rod (901) to return to the initial position; S8, the spring push plate (5) moves under the action of the push plate spring (12), and when it moves to the opened movable baffle (602), the movable baffle (602) abuts against the edge groove of the hole tray (1) to complete the locking, and the reciprocating operation is repeated until the hole tray compresses the spring push plate (5) to the set position, and the sensor C (13) transmits a signal to the control system (4), which then reminds the control system (4) to take out the stacked hole trays through the switch door (7).

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