Tobacco pot seedling hole tray intermittent conveying and recycling device

Abstract

The utility model discloses a tobacco pot seedling hole tray intermittent conveying and recycling device which comprises a tray conveying rack, a hole tray placing mechanism, an intermittent chain tray conveying mechanism, a hole tray recycling mechanism and a damping mechanism. The intermittent chain tray conveying mechanism comprises a tray conveying driving shaft, a tray conveying driving chain wheel, a left tray conveying chain, a right tray conveying chain, a tray conveying driven chain wheel, a tray conveying driven shaft, a driving shaft mounting seat, a driven shaft mounting seat, a tray conveying ratchet wheel, a pawl spring, a tray conveying pawl, a tray conveying air cylinder and a push rod joint; the disc conveying driving chain wheels are installed at the two ends of the disc conveying driving shaft, the disc conveying driven chain wheels are installed at the two ends of the disc conveying driven shaft respectively, the left disc conveying chain sleeves the disc conveying driving chain wheel and the disc conveying driven chain wheel on the left side, and the right disc conveying chain sleeves the disc conveying driving chain wheel and the disc conveying driven chain wheel on the right side. And a plurality of chain connecting rods are arranged between the left tray feeding chain and the right tray feeding chain. The technical problems that an existing device is low in reliability and poor in adaptability are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco transplanting, and in particular relates to an intermittent conveying and recycling device for tobacco seedling plug trays. Background Art

[0002] As tobacco companies vigorously develop large-scale planting, the concentration of tobacco fields has gradually increased, providing the prerequisite for the use of high-efficiency tobacco agricultural machinery. At present, there are few transplanters used for tobacco, and the degree of automation is not high, most of them are semi-automatic transplanters. It requires manual and machine cooperation, manual seedling picking and seedling placement, and machine transplanting. The transplanting efficiency is greatly affected by manual labor. With the increase in labor costs, transplanters that can replace manual seedling picking and seedling placement continue to develop. At present, the more commonly used automatic seedling picking methods are mainly the following: one is the pin-insertion type, inserting the seedling picking probe into the pot body to bring out the pot seedlings. The second is the ejection type, which pushes the pot seedlings out from the small hole at the bottom of the seedling tray. The third is the clamping type, which clamps the stems and pulls out the pot seedlings. The fourth is a combination of various methods derived from the above methods. The Chinese invention patent application with publication number: CN116711517A discloses a transplanter and a whole-row automatic seedling retrieval device and method thereof. The transplanter includes a whole-row automatic seedling retrieval device, and the whole-row automatic seedling retrieval device includes: a frame, which is installed on the chassis of the transplanter; a seedling supply mechanism, which is installed on the frame; a seedling separation mechanism, which is installed on the top of the frame corresponding to the seedling supply mechanism, and a plurality of seedling retrieval mechanisms are connected to the seedling separation mechanism, and the seedling separation mechanism controls the plurality of seedling retrieval mechanisms to have a folded position and an extended position respectively; a seedling lifting mechanism, which is arranged below the seedling supply mechanism corresponding to the seedling retrieval mechanism; a controller, which is installed on the frame and is respectively connected to the seedling supply mechanism, the seedling lifting mechanism, the seedling retrieval mechanism and the seedling separation mechanism; and a position sensor, which is installed on the frame and connected to the controller, and is used to transmit the detected position signals of the seedling supply mechanism and the seedling lifting mechanism to the controller, and the controller controls the seedling supply mechanism, the seedling lifting mechanism, the seedling retrieval mechanism and the seedling separation mechanism to move in an orderly manner after analysis and judgment. However, this transplanter cannot transport the plug tray, resulting in low transplanting efficiency and low reliability. Therefore, a tobacco seedling plug tray intermittent transportation and recovery device with high reliability and high transplanting efficiency is needed. Utility Model Content

[0003] In order to solve the deficiencies in the prior art, the utility model provides an intermittent conveying and recycling device for tobacco seedling plug trays with high reliability and high transplanting efficiency.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions: a tobacco plug seedling tray intermittent conveying and recycling device, which includes a tray conveying frame, a tray placing mechanism, an intermittent chain tray conveying mechanism, a tray recycling mechanism, and a damping mechanism. The tray placing mechanism is arranged on the tray conveying frame, the intermittent chain tray conveying mechanism is arranged below the tray placing mechanism, the tray recycling mechanism is arranged outside the intermittent chain tray conveying mechanism, and the damping mechanism is arranged on the left front side of the conveying mechanism;

[0005] The intermittent chain tray conveying mechanism includes a tray driving main shaft, a tray driving main sprocket, a left tray chain, a right tray chain, a tray driven sprocket, a tray driven shaft, a main shaft mounting seat, a driven shaft mounting seat, a tray ratchet, a pawl spring, a tray pawl, a tray cylinder, and a push rod joint;

[0006] There are two main shaft mounting seats, which are respectively installed on both sides of the front end of the tray conveying frame. There are two driven shaft mounting seats, which are respectively installed on both sides of the middle of the tray conveying frame. The tray driving main shaft is installed on the two main shaft mounting seats, the tray driven shaft is installed on the two driven shaft mounting seats. There are two tray driving main sprockets, which are respectively installed at both ends of the tray driving main shaft. There are two tray driven sprockets, which are respectively installed at both ends of the tray driven shaft. The left tray chain is sleeved on the left tray driving main sprocket and the tray driven sprocket, the right tray chain is sleeved on the right tray driving main sprocket and the tray driven sprocket, and several chain connecting rods are arranged between the left tray chain and the right tray chain;

[0007] A cylinder mounting plate is arranged on the second right column, the tray cylinder is installed on the cylinder mounting plate, the push rod joint of the tray cylinder is connected with a cylinder connecting piece. The right end of the tray driving main shaft extends outward to form a first extension part, the tray ratchet is installed on the first extension part, a pawl return plate is arranged on one side of the tray ratchet, a pawl mounting pin is arranged on the pawl return plate, the tray pawl is sleeved on the pawl mounting pin, the cylinder connecting piece is connected with the pawl mounting pin, a first connecting pin is arranged on the pawl, a second connecting pin corresponding to the first connecting pin is arranged on the pawl return plate, the upper end of the pawl spring is connected with the first connecting pin, and the lower end of the pawl spring is connected with the second connecting pin.

[0008] The tray conveying frame includes a first left column, a first right column, a second right column, a third left column, a third right column, a left inclined rod, and a right inclined rod. The left inclined rod and the right inclined rod are higher at the rear and lower at the front. The top end of the first left column is connected to the rear end of the left inclined rod, the top end of the third left column is connected to the front end of the left inclined rod, the top end of the first right column is connected to the front end of the right inclined rod, the top end of the third right column is connected to the rear end of the right inclined rod. The second right column is arranged between the first right column and the second right column. The bottom ends of the first left column, the first right column, the second right column, the third left column, and the third right column are on the same plane.

[0009] The plug tray placing mechanism includes a tray feeding rear shell, an upper guiding rod for plug tray sliding, an upper limiting plate for plug tray, a lower guiding rod for plug tray sliding, and a lower support for plug tray. The left end of the tray feeding rear shell is connected to a left inclined rod, and the right end of the tray feeding rear shell is connected to a right inclined rod. The lower support for plug tray includes a lower left support and a lower right support which are arranged corresponding to each other left and right. The lower left support is installed on the left inclined rod, and the lower right support is installed on the right inclined rod. The tray feeding rear shell is arranged at the upper rear part of the tray feeding rack, and the lower support for plug tray is arranged at the lower front part of the tray feeding rack. The upper guiding rod for plug tray sliding is fixed at the middle position of the tray feeding rear shell by bolts.

[0010] The plug tray recycling mechanism includes a fixed connecting plate, a first turning plate, a second turning plate, and a third turning plate. The left end of the fixed connecting plate is connected to a left inclined rod, and the right end of the fixed connecting plate is connected to a right inclined rod. The first turning plate is arranged at the left end of the fixed connecting plate, the second turning plate is arranged in the middle of the fixed connecting plate, and the third turning plate is arranged at the right end of the fixed connecting plate.

[0011] The damping mechanism includes a damping frame, a damping wheel, and a damping belt. The left end of the driving shaft for tray feeding extends outward to form a second extension part, and the damping wheel is installed on the second extension part. The damping frame is installed on the main frame by mounting bolts. The top end of the damping belt is sleeved on the damping wheel, and the bottom end of the damping belt is connected to the damping frame through a tensioning bolt and a tensioning nut.

[0012] Both ends of the chain connecting rod are provided with a reduced-diameter sleeve, and a chain connecting rod is installed between the two reduced-diameter sleeves corresponding to each other left and right.

[0013] This application adopts a vertical inclined tray feeding method. By using the intermittent chain tray feeding mechanism, the transmission is stable, the connection is smooth, and intermittent continuous tray feeding can be achieved. After the tray feeding cylinder is ventilated, the push rod of the tray feeding cylinder pushes the push rod joint, which in turn drives the tray feeding ratchet pawl to rotate. The tray feeding ratchet pawl drives the tray feeding ratchet wheel to rotate, and then the driving shaft for tray feeding rotates to convey the plug tray. Through the cooperation of the ratchet and pawl, the conveyance of the entire row of plug trays is realized. In addition, the damping mechanism of this application can ensure the stability of tray feeding and prevent the situation that the ratchet wheel rotates too much, resulting in excessive conveyance distance of the plug tray. During the conveyance of the plug tray, when the pot seedlings in the plug tray are taken away, the plug tray will continue to be conveyed, but it will pass through the plug tray recycling mechanism for recycling, which is convenient for the next use. During the conveyance of the plug tray in this application, the conveyance is smooth and the positioning is accurate;

[0014] In summary, the utility model has the advantages of simple operation, strong applicability, reasonable layout, high automation degree, and strong reliability. Through the cooperation of the ratchet and pawl, the conveyance of the entire row of plug trays is realized, effectively solving the technical problems of low reliability and poor adaptability of the existing device. Brief Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the utility model;

[0016] Figure 2It is a schematic structural diagram of the plug tray placing mechanism and the plug tray recycling mechanism of the present utility model;

[0017] Figure 3 It is a schematic structural diagram of the intermittent chain tray feeding mechanism of the present utility model;

[0018] Figure 4 It is a schematic structural diagram of the tray feeding pawl and the tray feeding ratchet of the present utility model;

[0019] Figure 5 It is a schematic structural diagram of the damping mechanism of the present utility model. Detailed implementation mode

[0020] As Figures 1-5 shown, the intermittent conveying and recycling device for tobacco pot seedlings plug trays of the present utility model includes a tray feeding rack, a plug tray placing mechanism 6, an intermittent chain tray feeding mechanism 7, a plug tray recycling mechanism 8, and a damping mechanism 9. The plug tray placing mechanism 6 is arranged on the tray feeding rack, the intermittent chain tray feeding mechanism 7 is arranged below the plug tray placing mechanism 6, the plug tray recycling mechanism 8 is arranged outside the intermittent chain tray feeding mechanism 7, and the damping mechanism 9 is arranged on the left front side of the tray feeding mechanism;

[0021] The intermittent chain tray feeding mechanism 7 includes a tray feeding driving shaft 22, a tray feeding driving sprocket 23, a left tray feeding chain 24, a right tray feeding chain 25, a tray feeding driven sprocket 26, a tray feeding driven shaft 27, a driving shaft mounting seat 28, a driven shaft mounting seat 29, a tray feeding ratchet 30, a pawl spring 31, a tray feeding pawl 32, a tray feeding cylinder 33, and a push rod joint 34;

[0022] There are two driving shaft mounting seats 28 which are respectively installed on both sides of the front end of the tray feeding rack, and there are two driven shaft mounting seats 29 which are respectively installed on both sides of the middle of the tray feeding rack. The tray feeding driving shaft 22 is installed on the two driving shaft mounting seats 28, the tray feeding driven shaft 27 is installed on the two driven shaft mounting seats 29. There are two tray feeding driving sprockets 23 which are respectively installed at both ends of the tray feeding driving shaft 22, and there are two tray feeding driven sprockets 26 which are respectively installed at both ends of the tray feeding driven shaft 27. The left tray feeding chain 24 is sleeved on the left tray feeding driving sprocket 23 and the tray feeding driven sprocket 26, the right tray feeding chain 25 is sleeved on the right tray feeding driving sprocket 23 and the tray feeding driven sprocket 26, and a plurality of chain connecting rods 35 are arranged between the left tray feeding chain 24 and the right tray feeding chain 25;

[0023] A cylinder mounting plate 37 is provided on the second right vertical column 12. The disk feeding cylinder 33 is mounted on the cylinder mounting plate 37. A push rod joint 34 of the disk feeding cylinder 33 is connected with a cylinder connecting member 38. The right end of the disk feeding driving shaft 22 extends outward to be provided with a first extension portion. The disk feeding ratchet 30 is mounted on the first extension portion. A pawl return plate 39 is arranged on one side of the disk feeding ratchet 30. A pawl mounting pin 40 is provided on the pawl return plate 39. The disk feeding pawl 32 is sleeved on the pawl mounting pin 40. The cylinder connecting member 38 is connected with the pawl mounting pin 40. A first connecting pin 41 is provided on the pawl. A second connecting pin 42 corresponding to the first connecting pin 41 is provided on the pawl return plate 39. The upper end of the pawl spring 31 is connected with the first connecting pin 41, and the lower end of the pawl spring 31 is connected with the second connecting pin 42.

[0024] The disk feeding frame includes a first left vertical column 10, a first right vertical column 11, a second right vertical column 12, a third left vertical column 13, a third right vertical column 14, a left diagonal rod 15 and a right diagonal rod 16. The left diagonal rod 15 and the right diagonal rod 16 are higher at the rear and lower at the front. The top end of the first left vertical column 10 is connected with the rear end of the left diagonal rod 15. The top end of the third left vertical column 13 is connected with the front end of the left diagonal rod 15. The top end of the first right vertical column 11 is connected with the front end of the right diagonal rod 16. The top end of the third right vertical column 14 is connected with the rear end of the right diagonal rod 16. The second right vertical column 12 is arranged between the first right vertical column 11 and the second right vertical column 12. The bottom ends of the first left vertical column 10, the first right vertical column 11, the second right vertical column 12, the third left vertical column 13 and the third right vertical column 14 are on the same plane.

[0025] The plug tray placing mechanism 6 includes a tray feeding rear shell 17, an upper guide rod 18 for sliding the plug tray, an upper limit plate 19 for the plug tray, a lower guide rod 20 for sliding the plug tray, and a lower support 21 for the plug tray. The left end of the tray feeding rear shell 17 is connected to the left inclined rod 15, and the right end of the tray feeding rear shell 17 is connected to the right inclined rod 16. The lower support 21 for the plug tray includes a lower left support and a lower right support arranged opposite to each other left and right. The lower left support is installed on the left inclined rod 15, and the lower right support is installed on the right inclined rod 16. The tray feeding rear shell 17 is arranged at the upper rear part of the tray feeding frame, and the lower support 21 for the plug tray is arranged at the lower front part of the tray feeding frame. The upper guide rod 18 for sliding the plug tray is fixed at the middle position of the tray feeding rear shell 17 by bolts. According to the installation requirements of chain drive, the driving sprocket 23 for tray feeding and the driven sprocket 26 for tray feeding are in the same plane, and the distance between the two driving sprockets 23 for tray feeding is equal to the distance between the two driven sprockets 26 for tray feeding. The chain connecting rod 35 is a stainless steel rod with a diameter of 4 mm and a length of 296 mm. Reducing sleeves 36 are installed at both ends. The reducing sleeves 36 are sleeved on the pins of two symmetrically installed tray feeding chains. A chain connecting rod 35 is installed between two corresponding reducing sleeves 36 on the left and right. The tray feeding chain has 70 chain links in total. A chain connecting rod 35 is installed every other pin, and a total of 35 chain connecting rods 35 are installed. The rotation of the driving shaft 22 for tray feeding is driven by a ratchet and pawl. The driving shaft 22 for tray feeding drives the driving sprocket 23 for tray feeding to rotate. The rotation of the driving sprocket 23 for tray feeding drives the tray feeding chain to rotate, thereby driving the chain connecting rod 35 to move. The chain connecting rod 35 cooperates with the plug tray to drive the plug tray to move intermittently. In addition, the plug tray selected in this application is a customized plug tray, which is different from the traditional tobacco seedling raising tray. The specifications of the plug tray are 128 holes [590 / 300 / 43], and the weight of a single plug tray is 156 grams (±3%). The distance between adjacent rows is 36.5 mm, which forms a multiple relationship with the pitch of 18.25 mm of the designed left tray feeding chain 24 and right tray feeding chain 25, so as to ensure smooth cooperation and no cumulative error. After the heads and tails of two plug trays are connected end to end, the distance between two rows is also 36.5 mm, ensuring that there is no gap and the connection is smooth when a new plug tray is placed.

[0026] The plug tray recycling mechanism 8 includes a fixed connecting plate 43, a first turning plate 44, a second turning plate 45, and a third turning plate 46. The left end of the fixed connecting plate 43 is connected to the left inclined rod 15, and the right end of the fixed connecting plate 43 is connected to the right inclined rod 16. The first turning plate 44 is arranged at the left end of the fixed connecting plate 43, the second turning plate 45 is arranged in the middle of the fixed connecting plate 43, and the third turning plate 46 is arranged at the right end of the fixed connecting plate 43. The tops of the first turning plate 44, the second turning plate 45, and the third turning plate 46 are all connected to the fixed connecting plate 43. The lower ends of the first turning plate 44, the second turning plate 45, and the third turning plate 46 are bent downward to form an arc shape, so that during the transportation of the plug tray, the top of the plug tray is supported by the inner sides of the first turning plate 44, the second turning plate 45, and the third turning plate 46, and the plug tray moves to the ends of the first turning plate 44, the second turning plate 45, and the third turning plate 46 along with the chain connecting rod 35, realizing the curling and recycling of the plug tray.

[0027] The damping mechanism 9 includes a damping frame 1, a damping wheel 2, and a damping belt 3. The left end of the tray feeding driving shaft 22 extends outward with a second extension part, and the damping wheel 2 is installed on the second extension part. The damping frame 1 is installed on the main frame through mounting bolts. The top end of the damping belt 3 is sleeved on the damping wheel 2, and the bottom end of the damping belt 3 is connected to the damping frame 1 through a tensioning bolt 4 and a tensioning nut 5. Adjusting the tensioning nut 5 can achieve the purpose of tensioning. When the present application is specifically used, a customized plug tray is placed on the plug tray placing mechanism 6, so that the bottom of the plug tray is placed between the two chain connecting rods 35 and is close to the chain connecting rod 35. After the tray feeding cylinder 33 is ventilated, the push rod of the tray feeding cylinder 33 pushes the push rod joint 34, thereby driving the tray feeding ratchet pawl 32 to rotate. The tray feeding ratchet pawl 32 drives the tray feeding ratchet wheel 30 to rotate, thereby driving the tray feeding driving shaft 22 to rotate for plug tray transportation. After the plug tray is transported, the corresponding seedling taking device takes seedlings. After the seedlings are taken, the empty plug tray is continuously transported until the ends of the first turning plate 44, the second turning plate 45, and the third turning plate 46, realizing the curling and recycling of the plug tray.

[0028] This application adopts a vertical inclined tray feeder, and uses an intermittent chain tray feeder mechanism 7 for stable transmission, smooth connection, and intermittent continuous tray feeding. After the tray feeding cylinder 33 is ventilated, the push rod of the tray feeding cylinder 33 pushes the push rod joint 34, which in turn drives the tray feeding ratchet pawl 32 to rotate. The tray feeding ratchet pawl 32 drives the tray feeding ratchet wheel 30 to rotate, and then the tray feeding main shaft 22 rotates to convey the plug tray. Through the cooperation of the ratchet and pawl, the conveyance of the entire row of plug trays is realized. Specifically, the rotation of the tray feeding main shaft 22 drives the tray feeding main sprockets 23 at both ends to rotate. The tray feeding main sprockets 23 drive the rotation of the tray feeding driven sprocket 26 and the tray feeding driven shaft 27 through the left tray feeding chain 24 and the right tray feeding chain 25, and then the chain connecting rod 35 arranged between the left tray feeding chain 24 and the right tray feeding chain 25 rotates, causing the entire row of plug trays 47 to be conveyed forward to realize the conveyance of the plug trays 47. In addition, the damping mechanism 9 of this application can ensure the stability of the tray feeding, preventing the situation that the ratchet rotates too much and the plug tray is conveyed too far. During the conveyance of the plug tray, when the plug seedlings in the plug tray are taken away, the plug tray will continue to be conveyed, but it will be recycled through the plug tray recycling mechanism 8 for convenient reuse next time. During the conveyance of the plug tray in this application, the conveyance is smooth and the positioning is accurate; this utility model is simple to operate, has strong applicability, reasonable layout, high automation degree, and strong reliability. Through the cooperation of the ratchet and pawl, the conveyance of the entire row of plug trays is realized, effectively solving the technical problems of low reliability and poor adaptability of the existing device.

[0029] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the technical solution of the present utility model.

Claims

1. The intermittent conveying and recycling device for tobacco pot seedlings in a seedling tray, characterized in that: It includes a tray feeding rack, a plug tray placing mechanism, an intermittent chain tray feeding mechanism, a plug tray recycling mechanism, and a damping mechanism. The plug tray placing mechanism is arranged on the tray feeding rack, the intermittent chain tray feeding mechanism is arranged below the plug tray placing mechanism, the plug tray recycling mechanism is arranged outside the intermittent chain tray feeding mechanism, and the damping mechanism is arranged on the left front side of the tray feeding mechanism; The intermittent chain tray feeding mechanism includes a tray feeding driving shaft, a tray feeding driving sprocket, a left tray feeding chain, a right tray feeding chain, a tray feeding driven sprocket, a tray feeding driven shaft, a driving shaft mounting seat, a driven shaft mounting seat, a tray feeding ratchet, a pawl spring, a tray feeding pawl, a tray feeding cylinder, and a push rod joint; There are two driving shaft mounting seats which are respectively installed on both sides of the front end of the tray feeding rack, and there are two driven shaft mounting seats which are respectively installed on both sides of the middle of the tray feeding rack. The tray feeding driving shaft is installed on the two driving shaft mounting seats, the tray feeding driven shaft is installed on the two driven shaft mounting seats, there are two tray feeding driving sprockets which are respectively installed at both ends of the tray feeding driving shaft, and there are two tray feeding driven sprockets which are respectively installed at both ends of the tray feeding driven shaft. The left tray feeding chain is sleeved on the left tray feeding driving sprocket and the tray feeding driven sprocket, the right tray feeding chain is sleeved on the right tray feeding driving sprocket and the tray feeding driven sprocket, and several chain connecting rods are arranged between the left tray feeding chain and the right tray feeding chain; A cylinder mounting plate is arranged on the second right column, the tray feeding cylinder is installed on the cylinder mounting plate, the push rod joint of the tray feeding cylinder is connected with a cylinder connecting piece. The right end of the tray feeding driving shaft extends outward to be provided with a first extension part, the tray feeding ratchet is installed on the first extension part, a pawl return plate is arranged on one side of the tray feeding ratchet, a pawl mounting pin is arranged on the pawl return plate, the tray feeding pawl is sleeved on the pawl mounting pin, the cylinder connecting piece is connected with the pawl mounting pin, a first connecting pin is arranged on the pawl, a second connecting pin corresponding to the first connecting pin is arranged on the pawl return plate, the upper end of the pawl spring is connected with the first connecting pin, and the lower end of the pawl spring is connected with the second connecting pin.

2. The tobacco plug seedling tray intermittent conveying and recycling device according to claim 1, characterized in that: The tray feeding rack includes a first left column, a first right column, a second right column, a third left column, a third right column, a left inclined rod and a right inclined rod. The left inclined rod and the right inclined rod are higher at the rear and lower at the front. The top end of the first left column is connected with the rear end of the left inclined rod, the top end of the third left column is connected with the front end of the left inclined rod, the top end of the first right column is connected with the front end of the right inclined rod, the top end of the third right column is connected with the rear end of the right inclined rod. The second right column is arranged between the first right column and the second right column. The bottom ends of the first left column, the first right column, the second right column, the third left column and the third right column are on the same plane.

3. The tobacco plug seedling tray intermittent conveying and recycling device according to claim 2, wherein: The plug tray placing mechanism includes a tray feeding rear shell, a plug tray sliding upper guide rod, a plug tray upper limit plate, a plug tray sliding lower guide rod, and a plug tray lower support. The left end of the tray feeding rear shell is connected with the left inclined rod, the right end of the tray feeding rear shell is connected with the right inclined rod. The plug tray lower support includes a left lower support and a right lower support which are arranged corresponding to each other left and right. The left lower support is installed on the left inclined rod, the right lower support is installed on the right inclined rod. The tray feeding rear shell is arranged at the upper rear part of the tray feeding rack, the plug tray lower support is arranged at the lower front part of the tray feeding rack, and the plug tray sliding upper guide rod is fixed at the middle position of the tray feeding rear shell through bolts.

4. The tobacco plug seedling tray intermittent conveying and recycling device according to claim 3, characterized in that: The plug tray recycling mechanism includes a fixed connecting plate, a first turning plate, a second turning plate, and a third turning plate. The left end of the fixed connecting plate is connected to a left inclined rod, and the right end of the fixed connecting plate is connected to a right inclined rod. The first turning plate is arranged at the left end of the fixed connecting plate, the second turning plate is arranged in the middle of the fixed connecting plate, and the third turning plate is arranged at the right end of the fixed connecting plate.

5. The intermittent conveying and recycling device for tobacco pot seedlings in a plug tray according to claim 4, wherein: The damping mechanism includes a damping frame, a damping wheel, and a damping belt. The left end of the tray feeding driving shaft extends outward to form a second extension part, and the damping wheel is installed on the second extension part. The damping frame is installed on the main frame through mounting bolts. The top end of the damping belt is sleeved on the damping wheel, and the bottom end of the damping belt is connected to the damping frame through a tensioning bolt and a tensioning nut.

6. The tobacco plug seedling tray intermittent conveying and recycling device according to claim 5, characterized in that: A reducing sleeve is provided at both ends of the chain connecting rod, and a chain connecting rod is installed between the two reducing sleeves corresponding to the left and right.

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