A step-by-step field seedling tray placing machine

Abstract

The present invention discloses a step-type field seedling tray placing machine. The device of the invention includes a support bottom plate, a limit falling mechanism, a tray pushing frame, a transmission mechanism, a propulsion mechanism and a connection mechanism. After the operator measures the laying area, a propulsion mechanism meeting the requirements is installed through the connection mechanism, and then the support bottom plate is connected to the single-tray pusher after connection. Different starting effects are driven by different rotation directions of the motor of the transmission mechanism, and the seedling trays are successively fed into the propulsion mechanism and then pushed out. Then, the above process is repeated to make the equipment move backward to achieve step-type tray placing; the equipment completes complex actions of covering trays and pushing trays under a simple connection method, and at the same time, the number of pushing trays can be increased arbitrarily according to the on-site environment, improving the adaptability of the product to laying areas of different specifications, and greatly reducing the operation difficulty and personnel expenditure, which is beneficial to the use and popularization of the equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural tools, and particularly relates to a step-type field seedling tray placing machine. Background Art

[0002] During the process of breeding seedlings in trays, after placing the seed material in the seedling trays, it is necessary to manually place the seedling trays into the greenhouse one by one. The process is cumbersome and the efficiency is low. During this period, due to the requirements of different specifications of cultivation greenhouses, different numbers of seedling trays need to be placed, which is not conducive to the use of existing products. The high operation difficulty especially increases the labor cost and is not conducive to market promotion. Summary of the Invention

[0003] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a step-type field seedling tray placing machine that can adapt to the complex on-site environment and reduce the operation difficulty.

[0004] The technical solution adopted by the present invention is as follows: A step-type field seedling tray placing machine, comprising:

[0005] A support bottom plate, the support bottom plate includes a bottom bearing plate, a threaded connecting rod and a threaded groove. The threaded groove is arranged in the middle of the side of the support bottom plate and is used for the bottom bearing plate to rotatably connect the threaded connecting rod;

[0006] A limit falling mechanism, including multiple groups of support plates placed on the support bottom plate and several pushing side plates. The pushing side plates are located between two groups of support plates. Multiple groups of connecting columns are arranged on the pushing side plates. A lifting column is arranged below the connecting columns, and a limiting rod is also arranged on the lifting column to lift the seedling trays.

[0007] The limiting drop mechanism also includes a lifting assembly and a linkage assembly: the lifting assembly is placed above the bottom bearing plate, the lifting assembly includes a sliding fixed block, the sliding fixed block is arranged on the support plate to fix related products, the support plate floor and the bottom bearing plate leave a gap, a vertical guide rod for sliding connection is provided in the middle of the sliding fixed block, one end of the vertical guide rod is fixedly connected to the bottom bearing plate; for supporting the bottom bearing plate, the bottom bearing plate is provided with a first spring penetrated by the vertical guide rod between adjacent sliding fixed blocks, the linkage assembly is placed on the support plate opposite to the exit direction, the linkage assembly includes a toggle block arranged on the support plate, and a The cam is secured to the rear of the L-shaped support frame, and the cam is secured to the rear of the L-shaped support frame by a spring. The cam is secured to the rear of the L-shaped support frame by a spring. The cam is secured to the rear of the L-shaped support frame by a spring.

[0008] A tray pushing frame is placed below the position-limiting drop mechanism, and includes a pushing plate for pushing the seedling raising tray to fall below the position-limiting drop mechanism;

[0009] The propulsion mechanism is placed on the exit side away from the pushing tray frame. The propulsion mechanism includes a tray support base plate, an L-shaped sliding frame is provided on the tray support base plate, a rotatably connected screw rod is provided in the middle of the L-shaped sliding frame, and a rotatably connected push plate is provided in the middle of the screw rod for pushing the seedling tray to slide onto the tray support base plate.

[0010] As a preferred embodiment of the present invention, a cylindrical groove is provided in the lifting column, the connecting column passes into the cylindrical groove, and a plurality of groups of oblique grooves are provided on the lifting column, the oblique grooves pass through the lifting column into the cylindrical groove, a toggle rod is further provided on the connecting column, the connecting column passes into the oblique groove of the lifting column, and a second spring is provided in the gap between the connecting column and the cylindrical groove.

[0011] Preferably, a T-shaped groove is provided on the pushing plate. Two sets of sliding blocks are provided in the T-shaped groove. One end of a connecting frame is rotatably connected to the sliding block. The centers of the connecting frames on the two sets of sliding blocks are rotatably connected to each other, forming a scissor shape. A threaded moving block is provided at the other end of the connecting frame. The middle of the threaded moving block is rotatably connected to a pair of threaded moving rods. The threaded directions of the pair of threaded moving rods extending from the center to both ends are opposite. Fixed circular plates fixedly connected and connecting plates rotatably connected are provided at both ends of the pair of threaded moving rods. The connecting plate is used to support the pair of threaded moving rods and is fixedly connected to the bottom bearing plate. A fourth spring is provided between the connecting plate and the fixed circular plate. The two ends of the fourth spring are fixedly connected to the contacting connecting plate and fixed circular plate.

[0012] Preferably, a through fixed through hole is further provided in the middle of the tray support bottom plate. The diameter of the fixed through hole is the same as that of the threaded connecting rod, which is used to connect the tray support bottom plate and the bottom bearing plate. Through rectangular grooves are provided on both sides of the L-shaped sliding frame. Both sides of the pushing plate are placed in the rectangular grooves. A third wedge-shaped gear is provided at one end of the screw rod. The third wedge-shaped gear fits the short handle of the L-shaped sliding frame. The third wedge-shaped gear also meshes with a fourth wedge-shaped gear. The fourth wedge-shaped gear is connected through a power torsion rod. Multiple torsion rod support frames are provided in the middle of the power torsion rod, which are used to support the rotatably connected power torsion rod on the tray support bottom plate. The multiple torsion rod support frames are placed on both sides of the fourth wedge-shaped gear. A concave connecting ball is provided at one end of the power torsion rod, and a convex connecting ball is provided at the other end. A fifth spring penetrated by the power torsion rod is provided between the concave connecting ball and the convex connecting ball and the adjacent torsion rod support frame. A convex block fitting into the concave of the concave connecting ball is further provided on the convex connecting ball.

[0013] Preferably, the step-by-step field plate placing machine further includes a transmission mechanism. The transmission mechanism includes a motor. The motor is fixedly connected to the bottom bearing plate. The motor is also connected to a rotating shaft extension rod. A clockwise one-way gear rotatably connected is provided at one end of the rotating shaft extension rod. A set of transmission gear components is provided on one side of the clockwise one-way gear. The transmission gear components include a rotating gear. The middle of the rotating gear is connected through a first gear rotating shaft. Gear fixing plates are provided on both sides of the first gear rotating shaft to support the rotating gear on the bottom bearing plate. A first belt is connected to one end of the first gear rotating shaft and the pair of threaded moving rods.

[0014] Preferably in the present invention, the other end of the rotating shaft extension rod is further provided with a counterclockwise one-way gear, the counterclockwise one-way gear meshes with a rotating gear of another set of transmission gear assemblies, one side of the another set of transmission gear assemblies is provided with a gear support plate, a second gear rotating shaft is rotatably connected to the gear support plate, a first wedge gear is provided at one end of the second gear rotating shaft, a second belt is connected between the other end of the second gear rotating shaft away from the first wedge gear and a first gear rotating shaft of the another set of transmission gear assemblies, the first wedge gear meshes with a second wedge gear, the second wedge gear is fixedly connected with a notch torsion rod, and a torsion rod support column is provided in the middle of the notch torsion rod for supporting the notch torsion rod above the bottom bearing plate.

[0015] Preferably in the present invention, the step-type field plate placing machine further includes a connecting mechanism for connecting adjacent propulsion mechanisms and a support bottom plate. The connecting mechanism includes a fastening frame fixed on a tray support bottom plate and a bottom bearing plate. A fastening block is provided on the fastening frame. The fastening block is provided with two sets of fastening grooves. A round rod of the fastening frame passes into the fastening grooves. Fixed sliding grooves are provided on the sides of the two sets of fastening grooves. A sliding fastening block is provided in the fixed sliding grooves. A plurality of sixth springs are provided in the gap between the sliding fastening block and the fixed sliding grooves.

[0016] Preferably in the present invention, a triangular pushing groove is further provided on the sliding fastening block, a round hole groove is further provided on the fastening block, a guiding round rod passes into the round hole groove, a pushing and disassembling plate is provided on one side of the guiding round rod, two sets of wedge-shaped bayonet blocks are provided on the pushing and disassembling plate, the wedge-shaped bayonet blocks are placed in the triangular pushing groove, and the inclined surfaces of the wedge-shaped bayonet blocks are fitted in the triangular block inclined surfaces of the triangular pushing groove.

[0017] The beneficial effects of the present invention are as follows: as a step-by-step field tray-swinging machine, the specific operation method is as follows: after the operator places the required seedling tray into the rectangular inner cavity formed by the support plate, the pushing side plate provided on the support plate drives the lifting column provided on the connecting column to buckle the seedling tray away from the bottom load-bearing plate to prevent it from falling to the bottom, and the motor drives the rotating shaft extension rod to rotate clockwise. The one-way gear continues to drive the first belt and the threaded moving rod to rotate based on the power of the rotating gear. When the threaded moving rod rotates, the threaded moving rod drives the threaded moving block to expand to both sides of the threaded moving rod, and then the connecting frame is unfolded, driving the pushing plate to move backward. When the pushing plate is away from the gap below the support plate, the pushing plate When the torsion bar is in the downward movement, the torsion bar moves downward, and the lifting column is pressed against the bottom bearing plate. After the contact, the lifting column receives the guiding effect of the torsion bar in the oblique groove and rotates to separate the limit rod from the side frame of the seedling tray, so that the lowest seedling tray falls onto the bottom bearing plate;

[0018] After completing the above steps, turn off the motor. Since the rotation of the threaded moving rod has applied some torque to the fourth spring during the above process, the threaded moving rod is rotated in the opposite direction after turning off the motor. The threaded moving rod continues to push the connecting frame to push the plate away from the threaded moving rod. At this time, two sets of actions are completed:

[0019] First, the push plate pushes the seedling tray that falls onto the bottom load-bearing plate into the tray support bottom plate to realize the transportation of the seedling tray;

[0020] Second, as the pushing plate moves closer to the seedling tray, the pushing plate is separated from the wedge block. The wedge block loses the force to lift the lever frame due to the push of the third spring, resulting in the L-shaped pressure rod no longer pressing the toggle block. The first spring on the support plate pushes the sliding fixed block to move the support plate upward. After movement, the lifting column is separated from the bottom load-bearing plate. The second spring provided in the lifting column pushes the lifting column away from the connecting column and rotates along the constraint direction of the toggle rod along the oblique groove. During rotation, the limit rod returns to the side support position of the seedling tray. During the return process, since the height of the lowest seedling tray is lower than the distance between the limit rod and the bottom load-bearing plate, the limit rod will lift the second to last group of seedling trays, realizing the function of single drop.

[0021] In response to the required different widths of the spacing between the seedling trays, the device adopts a combined propulsion mechanism. The threaded connecting rod provided on the bottom bearing plate is inserted into the tray support bottom plate to complete the connection of the first group of propulsion mechanisms. After the connection is completed, the same number of propulsion mechanisms are arranged side by side according to the measured number of seedling trays required, and the notch blocks on the adjacent notch connecting balls are inserted into the grooves of the notch connecting balls. A fastening frame is provided at the attachment at the joint between the two groups of propulsion mechanisms. The fastening blocks on the adjacent two groups of fastening frames below are buckled into the fastening grooves in the fastening blocks, and the sliding fastening blocks in the fastening grooves are squeezed to move towards the inner side of the fixed sliding groove. The movement continues until the round rod of the fastening frame completely fits the inner side of the fastening groove. The sliding fastening block moves away from the fixed sliding groove under the action of the sixth spring to complete the fastening of the fastening frame, realizing the fixation of the two groups of propulsion mechanisms;

[0022] During disassembly, the guiding round rod at the upper end of the pushing disassembly plate is inserted into the round hole groove, and the wedge-shaped bayonet block on the pushing disassembly plate is inserted into the triangular pushing groove. The pushing disassembly plate is pushed. After the inclined surface of the wedge-shaped bayonet block contacts the inclined surface of the triangular pushing groove, the sliding fastening block is restricted to move into the fixed sliding groove, and then the sliding fastening block is disengaged from the fastening groove. After being completely disengaged, the fastening block is pulled away from the fastening frame, and the fixation function of the propulsion mechanism can be completed. The propulsion mechanism and the bottom bearing plate can also be fixed through the same mechanism.

[0023] After multiple groups of propulsion mechanisms are fixed to the bottom bearing plate, the extension rod of the motor rotating shaft rotates counterclockwise to drive the counterclockwise one-way gear to rotate, and at the same time drives another rotating gear to rotate. The other rotating gear drives the first wedge gear to rotate through belt transmission, and continues to rotate the engaged second wedge gear. The second wedge gear further rotates the notch torsion rod. Since the notch torsion rod is inserted into the notch block of the notch connecting ball, the power torsion rod on the connected propulsion mechanism is applied with rotation. The power torsion rod rotates and continues to drive the fourth wedge gear to engage the third wedge gear to rotate. The third wedge gear drives the screw rod to rotate, and then the screw rod moves the push plate forward along the rectangular groove to push the seedling tray already on the tray support bottom plate, realizing the covering of the seedling tray.

[0024] By repeating the above process, when the seedling tray is pushed to be separated from the tray support bottom plate and the seedling tray is pushed for the second time, due to the reaction force of the first seedling tray, the second seedling tray will be fixed, and the whole device is pushed in the direction, thereby realizing the step-by-step covering of the seedling tray.

[0025] This device realizes the large-scale batch covering of the seedling trays through a simple device structure, and at the same time can change the number of covered trays according to the on-site environment, effectively adapting to the requirements of different specifications of greenhouse tray placement. In terms of operation, only by changing the rotation direction of the motor can realize full-automatic tray placement, effectively reducing the working intensity and improving the production efficiency, effectively improving the practicability of this device, and being conducive to the popularization and use of the device. Brief Description of the Drawings

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a schematic three-dimensional structure diagram of the present invention;

[0028] Figure 2 It is a schematic three-dimensional structure diagram of the lifting component of the limit falling mechanism of the present invention;

[0029] Figure 3 It is a partial structure diagram of the support base plate of the present invention;

[0030] Figure 4 It is the present invention Figure 2 The second structure diagram of the lifting component;

[0031] Figure 5 It is a structure diagram of the lifting component of the limit falling mechanism of the present invention;

[0032] Figure 6 It is a partial structure diagram of the limit falling mechanism of the present invention;

[0033] Figure 7 It is a schematic three-dimensional structure diagram of the linkage component of the limit falling mechanism of the present invention;

[0034] Figure 8 It is an exploded three-dimensional structure diagram of the linkage component of the limit falling mechanism of the present invention;

[0035] Figure 9 It is a schematic three-dimensional structure diagram of the push plate frame of the present invention;

[0036] Figure 10 It is a schematic three-dimensional structure diagram of the transmission mechanism of the present invention;

[0037] Figure 11 It is the second schematic three-dimensional structure diagram of the transmission mechanism of the present invention;

[0038] Figure 12 It is a schematic three-dimensional structure diagram of the propulsion mechanism of the present invention;

[0039] Figure 13 It is the second schematic three-dimensional structure diagram of the propulsion mechanism of the present invention;

[0040] Figure 14 It is a schematic diagram of the partial installation position of the connection mechanism of the present invention;

[0041] Figure 15 It is a sectional three-dimensional structure diagram of the connection mechanism of the present invention;

[0042] Figure 16 It is a partial three-dimensional structure diagram of the connection mechanism of the present invention.

[0043] Reference numerals: 1, supporting base plate; 11, bottom bearing plate; 12, threaded connecting rod; 13, threaded groove; 2, position-limiting drop mechanism; 21, supporting plate; 22, sliding fixed block; 23, vertical guide rod; 24, first spring; 25, pushing side plate; 26, lifting column; 27, connecting column; 271, toggle rod; 28, oblique groove; 29, position-limiting rod; 210, second spring; 211, cylindrical groove; 212, L-shaped vertical rod; 2121, lifting through hole; 2122, rotating vertical rod; 2123, rotating through hole; 21 3. L-shaped pressure rod; 2131. Twisting through hole; 214. Twist lever; 215. Wedge block; 216. Third spring; 217. T-bar; 218. Lever frame; 2181. Lever sliding groove; 219. Lever block; 220. Connecting torsion bar; 3. Push plate frame; 31. Push plate; 311. T-slot; 32. Connecting frame; 33. Sliding push block; 34. Threaded moving block; 35. Counter-threaded moving rod; 36. Connecting plate; 37. Fixed circular plate; 38. Fourth spring; 4. Transmission mechanism; 41. Motor; 42. Rotary Rotating shaft extension rod; 43, clockwise one-way gear; 44, counterclockwise one-way gear; 45, rotating gear; 451, gear fixing plate; 452, first gear rotating shaft; 46, first belt; 47, second belt; 48, gear support plate; 481, second gear rotating shaft; 49, first wedge-shaped gear; 410, second wedge-shaped gear; 411, torsion bar support column; 412, notched torsion bar; 5, propulsion mechanism; 51, tray support bottom plate; 52, L-shaped sliding frame; 53, rectangular groove; 54, screw rod; 55, third wedge-shaped gear Gear; 56, fourth wedge-shaped gear; 57, power torsion bar; 571, torsion bar support frame; 58, fifth spring; 59, notch connecting ball; 510, convex connecting ball; 5101, convex block; 511, fixed through hole; 512, push plate; 6, connecting mechanism; 61, buckle block; 611, fixed sliding groove; 62, buckle groove; 63, sliding buckle block; 631, triangular push groove; 632, sixth spring; 64, round hole groove; 65, guide round rod; 66, push disassembly plate; 661, wedge-shaped bayonet block; 67, buckle frame. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0046] The following combination Figure 1-16 The specific embodiment of the present invention is described as follows: a step-by-step field plate placing machine comprising:

[0047] Reference Figure 3 As shown, the support base plate 1 includes a bottom bearing plate 11, a threaded connecting rod 12 and a threaded groove 13. The threaded groove 13 is provided in the middle of the side of the support base plate 1 for rotatingly connecting the bottom bearing plate 11 to the threaded connecting rod 12.

[0048] The limiting drop mechanism 2 includes four groups of support plates 21 and two groups of pushing side plates 25 placed on the supporting bottom plate 1. The inflection point spacing of the support plates 21 is the same as that of the swing plate product. The inner side of the support plate 21 is L-shaped and fits the outer wall of the swing plate product at a right angle. The pushing side plate 25 is located between the two groups of support plates 21 on the short side. Two groups of connecting columns 27 are provided on the pushing side plates 25. A lifting column 26 is provided below the connecting column 27. A limiting rod 29 is also provided on the lifting column 26 to lift the seedling tray;

[0049] Push tray rack, see Figure 9 As shown, the tray pushing frame 3 is placed below the position-limiting drop mechanism 2, and the tray pushing frame 3 includes a pushing plate 31 for pushing the seedling tray to fall below the position-limiting drop mechanism 2;

[0050] Propulsion mechanism 5, see Figure 12 As shown, the propulsion mechanism 5 is placed in the direction away from the outlet side of the tray pushing frame 3, and the propulsion mechanism 5 includes a tray supporting bottom plate 51, an L-shaped sliding frame is provided on the tray supporting bottom plate 51, a rotatably connected screw rod 54 is provided in the middle of the L-shaped sliding frame, and a rotatably connected push plate 512 is provided in the middle of the screw rod 54 for pushing the seedling raising tray to slide onto the tray supporting bottom plate 51;

[0051] Helpfully, refer to Figure 5 As shown, a cylindrical groove 211 is provided in the lifting column 26, and the connecting column 27 passes into the cylindrical groove 211. Two sets of oblique grooves 28 are also provided on the lifting column 26. The oblique groove 28 runs through the lifting column 26 to the cylindrical groove 211. A toggle rod 271 is also provided on the connecting column 27. The connecting column 27 passes into the oblique groove 28 of the lifting column 26. A second spring 210 is provided in the gap between the connecting column 27 and the cylindrical groove 211 to force the lifting column 26 to rotate under the guidance of the oblique groove 28 on the toggle rod 271 so that the limiting rod 29 is separated from the side frame of the seedling tray.

[0052] Helpfully, refer toFigure 6 As shown, the limiting drop mechanism 2 also includes a lifting component and a linkage component: the lifting component is placed above the bottom bearing plate 11, the lifting component includes a sliding fixed block 22, the sliding fixed block 22 is arranged on the support plate 21, for fixing related products, the support plate 21 floor and the bottom bearing plate 11 leave a distance, the middle of the sliding fixed block 22 is provided with a sliding connected vertical guide rod 23, one end of the vertical guide rod 23 is fixedly connected to the bottom bearing plate 11; for supporting the bottom bearing plate 11, the bottom bearing plate 11 is provided with a first spring 24 penetrated by the vertical guide rod 23 between the adjacent sliding fixed blocks 22, the linkage component is placed on the support plate 21 opposite to the outlet direction, the linkage component includes a toggle block 219 provided on the support plate 21, a plurality of groups of L-shaped pressure rods are provided above the toggle block 219, and the L-shaped pressure rods are provided There is a fixedly connected torsion lever 214, a lever frame 218 is provided on the short rod side of the L-shaped pressure rod, a lever sliding groove 2181 is provided on the lever frame 218, and the support plate 21 is placed in the lever sliding groove 2181 of the lever frame 218. The L-shaped pressure rod is also provided with a torsion through-hole 2131, and a connecting torsion rod 220 is provided in the torsion through-hole 2131. An L-shaped vertical rod is provided below the lever frame 218, and a rotating column 2122 is provided at the top of the L-shaped vertical rod. The rotating column 2122 is provided with a rotating through-hole 2123 for rotatably connecting to the connecting torsion rod 220. The L-shaped vertical rod is also provided with a lifting through-hole 2121, and a T-rod 217 is passed through the lifting through-hole 2121. The end of the T-rod 217 is provided with a wedge block 215, and the wedge block 215 and the L-shaped vertical rod are directly provided with a third spring 216 penetrated by the T-rod 217.

[0053] Helpfully, refer to Figure 9 As shown, a T-slot is provided on the pushing plate 31, and two groups of sliding push blocks 33 are provided in the T-slot. One end of the connecting frame 32 is rotatably connected to the sliding push block 33, and the connecting frames 32 on the two groups of sliding push blocks 33 are rotatably connected at the center intersection, forming a scissors shape. A threaded moving block 34 is provided at the other end of the connecting frame 32, and the middle part of the threaded moving block 34 is rotatably connected to a pair of threaded moving rods 35. The threads extending from the center of the pair of threaded moving rods 35 to the two ends are in opposite directions. A fixed circular plate 37 and a rotatably connected connecting plate 36 are provided at both ends of the threaded moving rod 35. The connecting plate 36 is used to support the pair of threaded moving rods 35 and is fixedly connected to the bottom bearing plate 11. A fourth spring 38 is provided between the connecting plate 36 and the fixed circular plate 37, and the two ends of the fourth spring 38 are fixedly connected to the contacting connecting plate 36 and the fixed circular plate 37°.

[0054] Helpfully, refer to Figure 12As shown, a through fixing through-hole 511 is also provided in the middle of the tray support bottom plate 51. The diameter of the fixing through-hole 511 is the same as that of the threaded connecting rod 12, which is used to connect the tray support bottom plate 51 and the bottom bearing plate 11. Rectangular slots 53 are provided on both sides of the L-shaped sliding frame. Both sides of the push plate 512 are placed in the rectangular slots 53. A third wedge gear 55 is provided at one end of the screw rod 54. The third wedge gear 55 fits against the short handle of the L-shaped sliding frame. The third wedge gear 55 also meshes with a fourth wedge gear 56. The fourth wedge gear 56 is connected through a power torsion rod 57. Multiple torsion rod support frames 571 are provided in the middle of the power torsion rod 57, which are used to support the rotationally connected power torsion rod 57 on the tray support bottom plate 51. Multiple torsion rod support frames 571 are placed on both sides of the fourth wedge gear 56. A notch connecting ball 59 is provided at one end of the power torsion rod 57, and a convex connecting ball 510 is provided at the other end. A fifth spring 58 penetrated by the power torsion rod 57 is provided between the notch connecting ball 59 and the convex connecting ball 510 and the adjacent torsion rod support frame 571. A convex block 5101 that fits into the notch of the notch connecting ball 59 is also provided on the convex connecting ball 510.

[0055] Beneficially, referring to Figure 10 As shown, the step-by-step field seedling tray placing machine further includes a transmission mechanism 4. The transmission mechanism 4 includes a motor 41. The motor 41 is fixedly connected to the bottom bearing plate 11. The motor 41 is also connected to a rotating shaft extension rod 42. A clockwise one-way gear 43 with a rotational connection is provided at one end of the rotating shaft extension rod 42. A set of transmission gear components is provided on one side of the clockwise one-way gear 43. The transmission gear components include a rotating gear 45. A first gear rotating shaft 452 penetrates through the middle of the rotating gear 45. Gear fixing plates 451 are provided on both sides of the first gear rotating shaft 452 to support the rotating gear 45 on the bottom bearing plate 11. A first belt 46 is connected to one end of the first gear rotating shaft 452 to the threaded moving rod 35.

[0056] In specific implementation, the clockwise one-way gear 43 can achieve single-direction transmission, and can prevent the driving effect on the connected part when the motor 41 changes the rotation direction, avoiding affecting the movement of the threaded moving rod 35 and further affecting the subsequent work.

[0057] Beneficially, the other end of the rotating shaft extension rod 42 is further provided with a counterclockwise one-way gear 44. The counterclockwise one-way gear 44 meshes with a rotating gear 45 of another set of transmission gear components. One side of the another set of transmission gear components is provided with a gear support plate 48. A second gear rotating shaft 481 is rotatably connected to the gear support plate 48. One end of the second gear rotating shaft 481 is provided with a first wedge gear 49. A second belt 47 is connected to the first gear rotating shaft 452 of another set of transmission gear components at the other end of the second gear rotating shaft 481 away from the first wedge gear 49. The first wedge gear 49 meshes with a second wedge gear 410. The second wedge gear 410 is fixedly connected to a notch torsion bar 412. A torsion bar support column 411 is provided in the middle of the notch torsion bar 412 for supporting the notch torsion bar 412 above the bottom bearing plate 11.

[0058] In specific implementation, the counterclockwise one-way gear 44 can achieve single-direction transmission, and can prevent the driving effect on the connection part when the motor 41 changes the rotation direction, avoiding affecting the movement of the threaded moving rod 35 and further affecting the subsequent work.

[0059] Beneficially, referring to Figure 15 As shown, the step-by-step field plate placing machine further includes a connecting mechanism 6. The connecting mechanism 6 is used to connect the adjacent propulsion mechanism 5 and the support bottom plate 1. The connecting mechanism 6 includes a buckling frame 67 fixed on the tray support bottom plate 51 and the bottom bearing plate 11. A buckling block 61 is provided on the buckling frame 67. The buckling block 61 is provided with two groups of buckling grooves 62. The round rod of the buckling frame 67 passes into the buckling grooves 62. Fixed sliding grooves 611 are provided on the sides of the two groups of buckling grooves 62. A sliding buckling block 63 is provided in the fixed sliding grooves 611. A plurality of groups of sixth springs 632 are provided in the gap between the sliding buckling block 63 and the fixed sliding grooves 611.

[0060] Beneficially, referring to Figure 16 As shown, a triangular pushing groove 631 is further provided on the sliding buckling block 63. A round hole groove 64 is further provided on the buckling block 61. A guiding round rod 65 passes into the round hole groove 64. A pushing and disassembling plate 66 is provided on one side of the guiding round rod 65. Two groups of wedge-shaped bayonet blocks 661 are provided on the pushing and disassembling plate 66. The wedge-shaped bayonet blocks 661 are placed in the triangular pushing groove 631. The inclined surfaces of the wedge-shaped bayonet blocks 661 fit into the triangular block inclined surfaces of the triangular pushing groove 631.

[0061] In implementation, by squeezing the pushing and disassembling plate 66, the wedge-shaped bayonet blocks 661 are passed into the triangular pushing groove 631, and the inclined surface of the triangular pushing groove 631 is squeezed to quickly control the sliding buckling block 63 to move into the fixed sliding groove 611, facilitating subsequent disassembly.

[0062] The working principle of the present invention:

[0063] After the operator places the required seedling tray into the rectangular inner cavity formed by the support plate 21, the pushing side plate 25 provided on the support plate 21 drives the lifting column 26 provided on the connecting column 27 to engage the seedling tray away from the bottom load-bearing plate 11 to prevent it from falling to the bottom. The motor 41 drives the rotating shaft extension rod 42 to rotate clockwise. The one-way gear 43 continues to drive the first belt 46 and the threaded moving rod 35 to rotate based on the power of the rotating gear 45. When the threaded moving rod 35 rotates, the threaded moving rod 35 drives the threaded moving block 34 to expand to both sides of the threaded moving rod 35, and then expands the connecting frame 32, driving the pushing plate 31 to move backward. When the pushing plate 31 is away from the gap below the support plate 21, the pushing plate 31 contacts the inclined surface of the wedge block 215, driving the T-bar 217 to When the lever 218 is moved upward, the torsion lever 214 expands along the two sides of the lever sliding groove 2181. At the same time, the connecting torsion bar 220 connected to the rotation of the L-shaped pressure rod passes into the rotating through hole 2123, so that the L-shaped pressure rod cannot move upward. After the expansion of the torsion lever 214, the L-shaped pressure rod is driven to rotate and squeeze downward, and after contacting the toggle block 219 provided on the support plate 21, the support plate 21 is driven to move downward. At the same time, the support plate 21 moves downward and the toggle rod 271 is driven downward, pressing the lifting column 26 to contact the bottom bearing plate 11. After contact, the lifting column 26 receives the guiding effect of the oblique groove 28 on the toggle rod 271, which rotates to make the limit rod 29 disengage from the side frame of the seedling tray, so that the lowermost seedling tray falls onto the bottom bearing plate 11;

[0064] After the above steps are completed, the motor 41 is turned off. Since the rotation of the thread moving rod 35 has applied some torque to the fourth spring 38 during the above process, the thread moving rod 35 is rotated in the opposite direction after the motor 41 is turned off. The thread moving rod 35 continues to push the connecting frame 32 to push the plate 31 away from the thread moving rod 35. At this time, two sets of actions are completed:

[0065] First, the push plate 31 pushes the seedling tray that falls on the bottom load-bearing plate 11 into the tray support bottom plate 51 to realize the transportation of the seedling tray;

[0066] The second spring 210 of the lifting column 26 pushes the lifting column 26 away from the bottom load-bearing plate 11, and the second spring 210 of the lifting column 26 pushes the lifting column 26 away from the connecting column 27 and rotates along the oblique groove 28 in the direction of the constraint of the toggle rod 271. During the rotation, the limit rod 29 returns to the side support position of the seedling tray. During the return process, since the height of the lowest seedling tray is lower than the distance between the limit rod 29 and the bottom load-bearing plate 11, the limit rod 29 will lift the second to last group of seedling trays, realizing the function of single drop.

[0067] The support frame 51 of the tray 10 is fixed to the support frame 51 of the tray 10, and the support frame 51 is fixed to the support frame 51 of the tray 10.

[0068] During disassembly, the guiding round rod 65 at the upper end of the push-disassembly plate 66 is passed into the circular hole groove 64, and the wedge-shaped bayonet block 661 on the push-disassembly plate 66 is passed into the triangular pushing groove 631. The push-disassembly plate 66 is pushed, and the inclined surface of the wedge-shaped bayonet block 661 contacts the inclined surface of the triangular pushing groove 631, thereby constraining the sliding buckle block 63 to move into the fixed sliding groove 611, thereby causing the sliding buckle block 63 to disengage from the buckling groove 62. After complete disengagement, the buckling block 61 is pulled away from the buckling frame 67 to complete the fixing of the propulsion mechanism 5. The propulsion mechanism 5 and the bottom load-bearing plate 11 can also be fixed by the same mechanism.

[0069] After multiple groups of propulsion mechanisms 5 are fixed to the bottom bearing plate 11, the extension rod 42 of the rotating shaft of the motor 41 rotates counterclockwise, driving the counterclockwise one-way gear 44 to rotate. At the same time, it drives another rotating gear 45 to rotate. The other rotating gear 45 rotates the first wedge gear 49 through belt drive, and then rotates the engaged second wedge gear 410. The second wedge gear 410 further rotates the notch torsion rod 412. Since the notch torsion rod 412 passes through the notch block 5101 of the convex port connecting ball 510, the rotation is applied to the power torsion rod 57 on the already connected propulsion mechanism 5. The rotation of the power torsion rod 57 continues to drive the fourth wedge gear 56 to engage and rotate the third wedge gear 55. The third wedge gear 55 drives the screw rod 54 to rotate, and then the screw rod 54 moves the push plate 512 forward along the rectangular groove 53, pushing the seedling tray already located on the tray support bottom plate 51 to achieve tray covering.

[0070] After repeating the above process to push the seedling tray away from the tray support bottom plate 51, when the seedling tray is pushed for the second time, due to the reaction force from the first push on the seedling tray, the seedling tray will be fixed during the second push, and the overall device will be pushed in a certain direction, thus achieving the step-by-step tray covering of the seedling tray.

[0071] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0072] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.

Claims

1. A step-by-step field plate-setting machine, characterized by: include A supporting base plate (1), the supporting base plate (1) comprising a bottom bearing plate (11), a threaded connecting rod (12) and a threaded groove (13), wherein the threaded groove (13) is provided in the middle of a side edge of the supporting base plate (1) and is used for the bottom bearing plate (11) to be rotatably connected to the threaded connecting rod (12); The position-limiting drop mechanism (2) comprises a plurality of support plates (21) and a plurality of push side plates (25) placed on the support bottom plate (1). The push side plates (25) are located between two groups of support plates (21). The push side plates (25) are provided with a plurality of connecting columns (27). A lifting column (26) is provided below the connecting column (27). The lifting column (26) is further provided with a position-limiting rod (29) for lifting the seedling tray. The position-limiting drop mechanism (2) further comprises a lifting assembly and a linkage assembly: the lifting assembly is placed above the bottom bearing plate (11), the lifting assembly comprises a sliding fixed block (22), the sliding fixed block (22) is arranged on the support plate (21) for fixing related products, a distance is left between the floor of the support plate (21) and the bottom bearing plate (11), a vertical guide rod (23) connected in a sliding manner is arranged in the middle of the sliding fixed block (22), one end of the vertical guide rod (23) is fixed The bottom load-bearing plate (11) is fixedly connected to the bottom load-bearing plate (11); the bottom load-bearing plate (11) is provided with a first spring (24) penetrated by a vertical guide rod (23) between adjacent sliding fixed blocks (22); the linkage assembly is placed on the support plate (21) opposite to the outlet direction; the linkage assembly includes a toggle block (219) provided on the support plate (21); a plurality of L-shaped pressure rods are provided above the toggle block (219); and a fixed connection is provided on the L-shaped pressure rod. The torsion lever (214) is provided with a lever frame (218) on the short rod side of the L-shaped pressure rod, and the lever frame (218) is provided with a lever sliding groove (2181). The support plate (21) is placed in the lever sliding groove (2181) of the lever frame (218). The L-shaped pressure rod is also provided with a torsion through hole (2131), and a connecting torsion rod (220) is provided in the torsion through hole (2131). An L-shaped vertical rod is provided below the lever frame (218). A rotating column (2122) is provided at the top end, and the rotating column (2122) is provided with a rotating through hole (2123) for rotatingly connecting the connecting torsion bar (220). The L-shaped vertical rod is also provided with a lifting through hole (2121), and a T-shaped rod (217) is passed through the lifting through hole (2121). A wedge block (215) is provided at the end of the T-shaped rod (217). A third spring (216) penetrated by the T-shaped rod (217) is directly provided between the wedge block (215) and the L-shaped vertical rod; A tray pushing frame (3), the tray pushing frame (3) is placed below the position-limiting drop mechanism (2), and the tray pushing frame (3) includes a pushing plate (31) for pushing the seedling raising tray to fall below the position-limiting drop mechanism (2); A propulsion mechanism (5) is placed in a direction away from the outlet side of the tray pushing frame (3), and the propulsion mechanism (5) includes a tray supporting base plate (51), an L-shaped sliding frame is provided on the tray supporting base plate (51), a rotatably connected screw rod (54) is provided in the middle of the L-shaped sliding frame, and a rotatably connected push plate (512) is provided in the middle of the screw rod (54) for pushing the seedling raising tray that slides onto the tray supporting base plate (51).

2. The step-type field plate placing machine according to claim 1, characterized in that: The lifting column (26) is provided with a cylindrical groove (211), the connecting column (27) is passed into the cylindrical groove (211), the lifting column (26) is further provided with a plurality of groups of oblique grooves (28), the oblique grooves (28) pass through the lifting column (26) to the cylindrical groove (211), the connecting column (27) is further provided with a toggle rod (271), the connecting column (27) is passed into the oblique groove (28) of the lifting column (26), and a second spring (210) is provided in the gap between the connecting column (27) and the cylindrical groove (211).

3. The step-type field plate placing machine according to claim 1, characterized in that: The push plate (31) is provided with a T-shaped slot, and two groups of sliding push blocks (33) are provided in the T-shaped slot. One end of the connecting frame (32) is rotatably connected to the sliding push block (33). The connecting frame (32) on the two groups of sliding push blocks (33) is rotatably connected at the center intersection, forming a scissor shape. The other end of the connecting frame (32) is provided with a threaded moving block (34). The middle part of the threaded moving block (34) is rotatably connected to a pair of threaded moving rods (35). The center of the pair of threaded moving rods (35) is connected to the center of the threaded moving rods (35). The directions of the threads extending to the two ends are opposite, and the two ends of the threaded moving rod (35) are provided with a fixed circular plate (37) and a rotatably connected connecting plate (36), and the connecting plate (36) is used to support the threaded moving rod (35) and is fixedly connected to the bottom bearing plate (11). A fourth spring (38) is provided between the connecting plate (36) and the fixed circular plate (37), and the two ends of the fourth spring (38) are fixedly connected to the contacting connecting plate (36) and the fixed circular plate (37).

4. The step-type field plate placing machine according to claim 1, characterized in that: The tray support base plate (51) is also provided with a through fixing hole (511) in the middle thereof. The diameter of the through fixing hole (511) is the same as that of the threaded connecting rod (12) for connecting the tray support base plate (51) and the bottom load-bearing plate (11). The two sides of the L-shaped sliding frame are provided with through rectangular grooves (53). The two sides of the push plate (512) are placed in the rectangular grooves (53). One end of the screw rod (54) is provided with a third wedge gear (55). The third wedge gear (55) is fitted on the short handle of the L-shaped sliding frame. The third wedge gear (55) is also meshed with a fourth wedge gear (56). The fourth wedge gear (56) is connected to a power torsion bar (57) through the fourth wedge gear (56). A plurality of torsion bar support frames (571) are provided in the middle of the power torsion bar (57) for supporting the rotatably connected power torsion bar (57) on the tray support base plate (51). The plurality of torsion bar support frames (571) are placed on both sides of the fourth wedge gear (56). A notch connecting ball (59) is provided at one end of the power torsion bar (57), and a convex connecting ball (510) is provided at the other end. A fifth spring (58) penetrated by the power torsion bar (57) is provided between the notch connecting ball (59), the convex connecting ball (510) and the adjacent torsion bar support frame (571). The convex connecting ball (510) is further provided with a convex block (5101) engaged with the notch of the notch connecting ball (59).

5. The step-type field plate placing machine according to claim 3, characterized in that: The step-by-step field plate swinging machine further comprises a transmission mechanism (4), the transmission mechanism (4) comprising a motor (41), the motor (41) being fixedly connected to the bottom bearing plate (11), the motor (41) being further connected to a rotating shaft extension rod (42), one end of the rotating shaft extension rod (42) being provided with a rotatably connected clockwise one-way gear (43), one side of the clockwise one-way gear (43) being provided with a group of transmission gear assemblies, the transmission gear assembly comprising a rotating gear (45), a first gear rotating shaft (452) being connected through the middle of the rotating gear (45), gear fixing plates (451) being provided on both sides of the first gear rotating shaft (452) for supporting the rotating gear (45) on the bottom bearing plate (11), and a first belt (46) being connected to one end of the pair of threaded moving rods (35).

6. The step-type field plate placing machine according to claim 5, characterized in that: The other end of the rotating shaft extension rod (42) is further provided with a counterclockwise one-way gear (44), the counterclockwise one-way gear (44) is engaged with a rotating gear (45) of another group of transmission gear components, one side of the other group of transmission gear components is provided with a gear support plate (48), a second gear rotating shaft (481) is rotatably connected to the gear support plate (48), one end of the second gear rotating shaft (481) is provided with a first wedge gear (49), the second gear rotating shaft (481) is provided with a first wedge gear (49), and the second gear rotating shaft (481) is provided with a first wedge gear (49). ) is provided with a second belt (47) connected to the first gear rotating shaft (452) of the other group of transmission gear components at the other end away from the first wedge gear (49), the first wedge gear (49) is meshed with a second wedge gear (410), the second wedge gear (410) is fixedly connected to a notch torsion bar (412), and a torsion bar support column (411) is provided in the middle of the notch torsion bar (412) for supporting the notch torsion bar (412) above the bottom bearing plate (11).

7. The step-type field plate placing machine according to claim 1, characterized in that: The step-by-step field tray swinging machine also includes a connecting mechanism (6), which is used to connect the adjacent propulsion mechanisms (5) and the supporting base plate (1). The connecting mechanism (6) includes a buckle frame (67) fixed on the tray supporting base plate (51) and the bottom load-bearing plate (11). The buckle frame (67) is provided with a buckle block (61), and the buckle block (61) is provided with two groups of buckle grooves (62). The round rod of the buckle frame (67) passes into the buckle groove (62). The sides of the two groups of buckle grooves (62) are provided with fixed sliding grooves (611). The fixed sliding groove (611) is provided with a sliding buckle block (63). A plurality of groups of sixth springs (632) are provided in the gap between the sliding buckle block (63) and the fixed sliding groove (611).

8. The step-type field plate placing machine according to claim 7, characterized in that: The sliding buckle block (63) is further provided with a triangular push groove (631), and the buckle block (61) is further provided with a circular hole groove (64). A guide round rod (65) is passed into the circular hole groove (64). A push and disassembly plate (66) is provided on one side of the guide round rod (65). Two groups of wedge-shaped bayonet blocks (661) are provided on the push and disassembly plate (66). The wedge-shaped bayonet blocks (661) are placed in the triangular push groove (631), and the inclined surface of the wedge-shaped bayonet block (661) is fitted into the inclined surface of the triangular block of the triangular push groove (631).

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