Vegetable seedling raising device

Abstract

The invention relates to the technical field of agricultural breeding, and discloses a vegetable seedling raising device which comprises a base plate and a bearing plate which can be installed in a combined mode, a through groove allowing a seedling raising plate to be embedded and placed is formed in the surface of the bearing plate, the top face of the seedling raising plate is flush with the top face of the bearing plate after arrangement, and the vegetable seedling raising device further comprises a film covering part arranged above the bearing plate, the film laminating part comprises a film winding roller wound with a film, and the film winding roller can horizontally move along the top surface of the receiving disc and can perform winding or unwinding actions at the same time; the two groups of die pressing parts are respectively arranged on the two longitudinal sides of the bearing disc, and each die pressing part comprises a sliding frame capable of moving up and down for adjustment. According to the invention, a plurality of groups of pressing die parts are adopted to press and cover the edge of the film in sections, and the lengths of the film rolling roller and the pressing and covering position are shortened, so that the film is kept in a tensioned and straightened state along the longitudinal and transverse directions, an air interlayer between the film and soil is avoided, the film covering quality is further improved, and seeds are ensured to germinate in a suitable environment.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural breeding, in particular to a vegetable seedling raising device. Background Art

[0002] In agricultural production, vegetable seedling cultivation is the key starting link, and in the seedling cultivation process, film covering is an extremely important link. The film covering operation is crucial to creating a suitable environment for seed germination. By covering the seed surface with a thin film, the soil temperature can be effectively increased, water evaporation can be reduced, and soil moisture can be maintained, thereby providing stable temperature and humidity conditions for seed germination.

[0003] At present, the existing seedling raising equipment, such as a new type of seedling raising tray disclosed in the Chinese patent with the announcement number CN220733685U, has a film-covering structure designed so that the seedling raising tray can be directly covered when it is needed, without the need to use an additional film to cover the seedling raising tray, and the covered film can be easily fixed, making the covering more convenient and improving the covering efficiency.

[0004] However, this film covering method often has the problem of loose film covering, resulting in gaps between the soil and the film, which not only reduces the heat preservation and moisture retention effect, but also may allow weeds to grow, thereby affecting the normal growth of seeds. Summary of the Invention

[0005] The object of the present invention is to provide a vegetable seedling raising device to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a vegetable seedling raising device, comprising a base plate and a receiving plate that can be assembled and mounted together, wherein a through groove is provided on the surface of the receiving plate for inserting and placing the seedling raising plate, and the top surface of the seedling raising plate after placement is flush with the top surface of the receiving plate, and further comprising:

[0007] A film coating unit is provided above the receiving tray, the film coating unit comprising a film winding roller wound with a film, and the film winding roller can move horizontally along the top surface of the receiving tray and simultaneously perform winding or unwinding actions;

[0008] Two sets of die parts are respectively arranged on both sides of the receiving plate in the longitudinal direction, and the die parts are provided with multiple sets. The die parts include a sliding frame that can be adjusted up and down, and the sliding frames corresponding to the two sides move downward and first approach each other and then move away from each other, and contact and squeeze the film during the process of moving away;

[0009] Two groups of pressure strips are respectively arranged on both sides of the receiving tray and can be removed or installed. A coating area is formed between the two groups of pressure strips and the two groups of pressing mold parts.

[0010] Optionally, side frames are fixed to the top of both longitudinal sides of the receiving tray, and electric sliders that can be slidably adjusted are installed in the long grooves on the two side frames, a first rotating shaft is commonly passed through and rotatably installed between the two electric sliders, and an intermediate roller is fixed to the outer wall of the first rotating shaft, and a swing rod that can be intermittently rotated and adjusted is installed on the outer walls of the first rotating shaft near both sides, and a second rotating shaft is rotatably installed on the outer walls of the two swing rods, and the second rotating shaft is rotatably installed together, the film rolling roller is fixedly installed on the second rotating shaft, and the pulled film passes over the top of the intermediate roller and is spread on the surface of the receiving tray and the seedling tray, a first gear is fixed on the outer wall of the first rotating shaft, and a second gear is fixed on the outer wall of the second rotating shaft, the first gear and the second gear are meshed, and a rack meshed with the first gear is also fixed on the top of the seedling tray.

[0011] Optionally, a transverse groove is provided on the side wall of the side frame, and an angle groove is provided in the middle of the transverse groove, and the angle groove is bent downward, and a pin rod is fixed at the end of the swing rod and is slidably installed in the transverse groove.

[0012] Optionally, a film pressing roller is fixed to the outer walls of the two electric sliders via a fixing rod, and the film pressing roller is located on the side of the middle roller away from the film winding roller, and the pulled film passes around from under the film pressing roller.

[0013] Optionally, the die portion includes a groove provided on the side wall of the side frame, the inner wall of the groove is vertically slidably mounted on the lifting frame, the slide frame is horizontally slidably mounted in the lifting frame, and the openings of the lifting frame and the slide frame are opposite to each other, and a tension spring is further connected between the slide frame and the inner wall of the lifting frame, and a connecting rod is rotatably mounted between the inner wall of the groove and the inner wall of the slide frame, and the outer walls of the lifting frame and the slide frame are provided with a hollow groove for the connection rod to move, and a shift rod is rotatably mounted between the chassis and the receiving plate through the bracket, and the bottom end of the lifting frame is fixed with a vertical rod that penetrates under the receiving plate, and the bottom end of the vertical rod is connected to the shift rod by a sliding groove sliding pin structure, and the vertical rod is slidably connected to the through-hole of the receiving plate.

[0014] Optionally, the swing range of the connecting rod is limited by the horizontal state of the rotation point, and the rotation range at the top is larger than the rotation range at the bottom.

[0015] Optionally, the side wall of the receiving plate is also formed with an extension plate, and a movable frame is slidably installed on the top of the extension plate. The end of the first rotating shaft passes through part of the side wall of the movable frame and is rotatably connected to the penetration point. An air duct is opened inside the first rotating shaft, and a one-way valve is installed in the air duct. The outer wall of the intermediate roller is annularly distributed with multiple groups of air vents connected to the air duct, and an air injection component for intermittently injecting air into the air duct is also installed in the movable frame.

[0016] Optionally, the gas injection assembly includes a circular groove provided on the inner wall of the movable frame, and the circular groove is eccentrically designed to the first rotating shaft. A docking tube coaxially arranged with the first rotating shaft is rotatably installed on the inner wall of the circular groove, and the docking tube is rotatably plugged into the end opposite to the first rotating shaft. A connecting piece is also installed between the first rotating shaft and the docking tube, and the connecting piece is used to connect or disconnect the first rotating shaft and the docking tube. A section of the docking tube located in the circular groove is set as a piston box, and a piston block is slidably installed on the inner wall of the piston box. A piston rod is fixed through the interior of the piston block, and both ends of the piston rod pass through both sides of the piston box and can intermittently contact the inner wall of the circular groove. The side walls of the piston box on both sides of the piston block are provided with air inlets that can suction air in one direction, and a channel is provided in the docking tube to connect the air duct with the piston box.

[0017] Optionally, the connecting member includes a connecting sleeve that is slidably mounted on the first rotating shaft and the outer wall of the butt joint tube. The outer walls of the first rotating shaft and the butt joint tube are both provided with flat key grooves, and the inner wall of the connecting sleeve is fixed with a flat key that matches therewith.

[0018] Optionally, the length of the pressure strip is greater than the width of the film, and the pressure strip is detachably mounted on the top of the receiving tray by bolts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention uses a film rolling roller that moves horizontally along the top surface of the receiving disk and unwinds at the same time. The sliding frame of the die part moves downward in sequence to press and cover the edge of the fixed film, and the pressure strips on both sides form a frame-shaped pressing edge, so as to achieve a close fit between the film and the soil, reduce the air barrier, effectively improve the thermal insulation effect and moisture retention capacity, and create a stable temperature and humidity environment for seed germination.

[0021] 2. The present invention adopts multiple groups of pressing molds to press the edge of the film in sections, shortening the length of the film rolling roller and the pressing position, so that the film is kept taut and straight in the longitudinal and transverse directions, avoiding the formation of an air layer between the film and the soil, further improving the quality of the film, and ensuring that the seeds germinate in a suitable environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a left-side stereoscopic view of the present invention;

[0023] Figure 2 It is a right side perspective view of the present invention;

[0024] Figure 3 It is the front view of the present invention;

[0025] Figure 4 For the present invention Figure 3 Cross-sectional view and partial enlarged view along AA;

[0026] Figure 5 For the present invention Figure 4 Cross-sectional perspective views and partial magnified views;

[0027] Figure 6 For the present invention Figure 4 Cross-sectional view along BB;

[0028] Figure 7 It is an enlarged schematic diagram of the first gear and the second gear and their partial structures of the present invention;

[0029] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the first rotating shaft and the second rotating shaft of the present invention;

[0030] Figure 9 Schematic diagram of the lifting frame and sliding frame of the present invention Figure 1 ;

[0031] Figure 10 Schematic diagram of the lifting frame and sliding frame of the present invention Figure 2 ;

[0032] Figure 11 Schematic diagram of the lifting frame and sliding frame of the present invention Figure 3 ;

[0033] Figure 12 It is a bottom-up three-dimensional structural diagram of the lifting frame and the sliding frame of the present invention.

[0034] In the figure: 1. chassis; 2. receiving tray; 3. seedling tray; 4. side frame; 5. long groove; 6. electric slider; 7. first rotating shaft; 8. first gear; 9. second rotating shaft; 10. second gear; 11. swing rod; 12. fixed rod; 13. film pressing roller; 14. film winding roller; 15. middle roller; 16. pin rod; 17. transverse groove; 18. angle groove; 19. rack; 20. extension plate; 21. movable frame; 22. circular groove; 23. butt joint; 24. piston box; 25. piston block; 26. piston rod; 27. connecting sleeve; 28. groove; 29. lifting frame; 30. sliding frame; 31. tension spring; 32. connecting rod; 33. vertical rod; 34. lever; 35. film; 36. air vent. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1 to 12The present invention provides a technical solution: a vegetable seedling raising device, comprising a base plate 1 and a receiving plate 2 that can be assembled and mounted together, wherein the receiving plate 2 has a through groove on its surface for inserting and placing a seedling raising plate 3, and the top surface of the seedling raising plate 3 after placement is flush with the top surface of the receiving plate 2, and further comprising:

[0037] The film coating part is provided above the receiving tray 2, and the film coating part includes a film winding roller 14 with a film 35 wound thereon, and the film winding roller 14 can move horizontally along the top surface of the receiving tray 2 and simultaneously perform winding or unwinding actions;

[0038] Two sets of die parts are respectively provided on the longitudinal sides of the receiving tray 2, and the die parts are provided with multiple sets. The die parts include a sliding frame 30 that can be adjusted up and down, and the sliding frames 30 corresponding to the two sides move downward and first approach each other and then move away from each other, and in the process of moving away, they come into contact with and squeeze the film 35;

[0039] Two groups of detachable or installable pressure strips are respectively arranged on both sides of the receiving tray 2 in the transverse direction, and a coating area is formed between the two groups of pressure strips and the two groups of pressing mold parts.

[0040] When cultivating vegetable seeds, the vegetable seedling raising device sows the seeds in the seedling holes of the seedling raising tray 3, and then the seedling raising tray 3 is embedded in the through groove provided on the receiving tray 2, and the soil height in the seedling hole is made flush with the top surface of the seedling raising tray 3, so that the subsequent film covering process can be facilitated, and then the film covering process is started after irrigation and fertilization;

[0041] During lamination, the film 35 drawn out is first fixed to the top of one side of the receiving tray 2 by means of a pressure strip. Figure 1 and 2 As shown, the film rolling roller 14 is then driven by the external structure to move horizontally along the top surface of the receiving tray 2 and unwind at the same time, so that the film 35 is unwound and laid on the seedling tray 3 and the receiving tray 2 at the same time, and as the film rolling roller 14 moves, the sliding frames 30 of the die parts on both sides of the receiving tray 2 move down in turn to press and fix the edges of the film 35 until the film 35 completely covers the seedling tray 3, and then the film 35 at the end position is pressed and covered by the layering strips, so that a frame-shaped pressing edge can be formed by the two layering strips and the sliding frames 30 on both sides, and the film coating process is completed on the surface of the seedling tray 3;

[0042] During this process, since the die portion is provided with multiple groups, the film 35 can be divided into multiple groups of pressing areas in the longitudinal direction. For example, the first area is a1, and the subsequent areas are a2, a3, etc. When the film roll 14 moves to the a2 area, the slide frame 30 in the a1 area presses the edge of the film 35. In this way, the segmented pressing method can not only shorten the length between the film roll 14 and the pressing position, so that the film 35 can maintain the segmented tension state, but also avoid the film 35 being too long and resulting in a large gap between the middle and the soil, so that the air layer between the film 35 and the soil can be reduced or avoided, thereby avoiding affecting the thermal insulation effect and moisture retention.

[0043] Moreover, it is worth noting that in order to avoid the formation of an air layer between the film 35 and the soil, in addition to the above-mentioned pulling and straightening in the longitudinal direction, it is also necessary to pull and straighten it in the transverse direction so that the film can maintain an appropriate straight state to ensure that it is in close contact with the surface of the soil. Therefore, when the corresponding sliding frames 30 in the common area on both sides move downward and press the film 35, they will move closer to each other while moving downward, so that the horizontal state of the sliding frames 30 moves to above the edge position of the film 35, and then move away from each other during the downward movement, and contact and squeeze the edge position of the film 35 during the process of moving away from each other. In this way, while completing the pressing, a traction force and traction trend are applied to the film 35 along both sides, so that the film 35 can also be stretched and straightened in the transverse state, ensuring that the film 35 is stretched in different directions, further reducing the air layer between the film 35 and the soil, improving the heat preservation effect and moisture retention effect, ensuring that the seeds can germinate in an adapted temperature and humidity environment, and improving the seed cultivation effect.

[0044] Then, when the seedlings emerge from the soil and the true leaves begin to unfold, the film is removed to avoid adverse effects on the growth of the seedlings. When removing the film, the layering strip near the side of the film roller 14 is removed, and the slide frame 30 is lifted from the above-mentioned area in the opposite direction, that is, the pressure on the film 35 is released in the order of a4, a3, a2, and a1. At the same time, the film roller 14 performs a winding action while resetting the horizontal movement to rewind the film 35, so as to recycle the film 35 for the next use. After the strength of the film 35 no longer supports use, the section of film 35 can be cut off, and then another section of film 35 can be pulled out. This can reduce the waste of film 35 and improve utilization.

[0045] In one of the more preferred embodiments, an implementation method is provided that can drive the film roll 14 to unwind or rewind;

[0046] The receiving tray 2 is fixed with side frames 4 on the top of both sides in the longitudinal direction, and the long grooves 5 on the two side frames 4 are equipped with electric sliders 6 that can be slidably adjusted. A first rotating shaft 7 is rotatably installed between the two electric sliders 6, and an intermediate roller 15 is fixed to the outer wall of the first rotating shaft 7. The outer walls of the first rotating shaft 7 near both sides are equipped with swing rods 11 that can intermittently reciprocate and adjust. The outer walls of the two swing rods 11 are rotatably installed with a second rotating shaft 9. The film rolling roller 14 is fixedly installed on the second rotating shaft 9, and the pulled out film 35 passes over the top of the intermediate roller 15 and is laid on the surface of the receiving tray 2 and the seedling tray 3. A first gear 8 is fixed to the outer wall of the first rotating shaft 7, and a second gear 10 is fixed to the outer wall of the second rotating shaft 9. The first gear 8 and the second gear 10 are meshed with each other. A rack 19 meshing with the first gear 8 is also fixed to the top of the seedling tray 3.

[0047] For details, please refer to Figure 1 、 Figure 2 and Figure 8 During lamination, the electric slider 6 drives the first rotating shaft 7 and the intermediate roller 15 to move. At the same time, the first gear 8 rotates along the rack 19, so that the first rotating shaft 7 rotates while moving, and drives the second rotating shaft 9 to rotate in the opposite direction through the engagement with the second gear 10, so that the film roll 14 can rotate and unwind. The rotation direction is as follows: Figure 7 As shown by the arrow in the middle, the above-mentioned lamination process is achieved;

[0048] Similarly, when the film 35 is wound, the reset movement of the electric slider 6 causes the first gear 8 to rotate in the reverse direction, thereby causing the film winding roller 14 to rotate in the reverse direction for winding;

[0049] Among them, during the unwinding process of the film 35, it will first pass around the middle roller 15 before being unwound. The middle roller 15 can play a role of smooth transition for the film 35 to avoid excessive longitudinal pulling of the film 35. In addition, a guide ridge that spirals from the middle to both sides can be provided on the outer wall of the middle roller 15. In this way, the middle roller 15 can maintain the flatness of the film 35 in the (transverse) width direction through the guide ridges thereon while rotating, providing better conditions for subsequent pressing. The height of the guide ridge should not be too high to avoid excessive pressure on the film 35 and causing it to be damaged. It only needs to play the role of pushing and guiding from the middle to both sides.

[0050] Moreover, it is worth mentioning that during the horizontal movement and rotation unwinding process of the film roll 14, the swing rod 11 is intermittently controlled by the external structure to swing back and forth. Figure 7, that is, the swing arm 11 and the film rolling roller 14 will rotate clockwise with the first rotating shaft 7 as the center of the circle, and due to the rotation direction of the first gear 8 and the second gear 10, when the swing arm 11 rotates in the clockwise direction, the rotation of the second gear 10 will be partially offset by its revolution, which will cause the speed of the second gear 10 to decrease, that is, the unwinding speed of the film rolling roller 14 to slow down, and since the horizontal movement speed of the electric slider 6 is still maintained, this will have a pulling effect on the film 35, and this, combined with the pressing process of the above-mentioned slide frame 30, can have a pulling and straightening effect on the film 35 before pressing, and then press, so that the film 35 in the previous area can be kept in a taut state, thereby improving the suitability of the coating.

[0051] Then, the swing rod 11 is driven by the external structure to reset and swing, that is, it can be reset by rotating counterclockwise. At this time, even if the film roller 14 has an accelerated unwinding process, it will not affect the lamination process. Instead, it can relieve the tensile stress on the film 35 in the initial state in the next area, avoiding damage to the film 35.

[0052] In one of the more preferred embodiments, an implementation method is provided that can intermittently control the reciprocating swing adjustment of the swing rod 11;

[0053] The side wall of the side frame 4 is provided with a transverse groove 17 , and an angle groove 18 is provided in the middle of the transverse groove 17 , and the angle groove 18 is bent downward, and a pin rod 16 is fixed to the end of the swing rod 11 and is slidably installed in the transverse groove 17 .

[0054] For details, please refer to Figure 1 and Figure 2 When the electric slider 6 slides horizontally, the pin rod 16 at the end of the swing rod 11 will slide along the inner wall of the transverse groove 17. When it slides into the angle groove 18, the downward movement of the pin rod 16 will drive the swing rod 11 to swing down, and then slide back into the transverse groove 17, thereby achieving the effect of the reciprocating swing of the swing rod 11 to adjust the unwinding speed.

[0055] In one of the more preferred embodiments, the outer walls of the two electric sliders 6 are also fixed with a film pressing roller 13 through a fixing rod 12, and the film pressing roller 13 is located on the side of the middle roller 15 away from the film winding roller 14, and the pulled out film 35 passes around from under the film pressing roller 13.

[0056] See Figure 2 、 7 and Figure 8 Through the design of the film pressing roller 13, the film 35 can be height-limited so that the film 35 can be as close to the seedling tray 3 as possible, which can be more conducive to reducing the air gap between the film and the soil and improving the film covering effect.

[0057] In one of the more preferred embodiments, an implementation of a die portion is provided;

[0058] The die portion includes a groove 28 provided on the side wall of the side frame 4, and a lifting frame 29 is vertically slidably installed on the inner wall of the groove 28, and the slide frame 30 is horizontally slidably installed in the lifting frame 29, and the openings of the lifting frame 29 and the slide frame 30 are opposite. A tension spring 31 is also connected between the slide frame 30 and the inner wall of the lifting frame 29, and a connecting rod 32 is installed between the inner wall of the groove 28 and the inner wall of the slide frame 30 for common rotation, and the outer walls of the lifting frame 29 and the slide frame 30 are provided with a hollow groove for the movement of the connecting rod 32. A driving rod 34 is rotatably installed between the chassis 1 and the receiving plate 2 through the bracket, and a vertical rod 33 is fixed to the bottom end of the lifting frame 29 and penetrates into the bottom of the receiving plate 2. The bottom end of the vertical rod 33 is connected to the driving rod 34 by a slide groove sliding pin structure, and the vertical rod 33 is slidably connected to the through-hole of the receiving plate 2.

[0059] For details, please refer to Figure 4 、 Figure 9-12 When the film 35 in the corresponding area needs to be pressed, the corresponding lever 34 is toggled, and then the lever 34 will drive the vertical rod 33 to move downward through the slide slot and slide pin structure, thereby driving the lifting frame 29 to move downward. Due to the action of the connecting rod 32, the sliding frame 30 will slide horizontally while moving downward, and the tension spring 31 will be stretched and accumulate tensile potential energy. When the connecting rod 32 rotates beyond the horizontal state, the sliding frame 30 will start to slide into the lifting frame 29, so that the movement trajectory of the sliding frame 30 is in an arc state until the sliding frame 30 contacts and presses the film 35, that is, Figure 11 The state is a pressed state, and in this state, the sliding frame 30 can be kept in a pressed state due to the tension of the tension spring 31, thereby enabling the sliding frame 30 to maintain a pressed state on the film 35, thereby ensuring the laminating effect;

[0060] In this way, the state of the slide frame 30 can be switched by toggling the lever 34 to achieve the above-mentioned purpose of pressing and releasing the film 35. In this way, the lever 34 of each area can be pressed or released to complete the above-mentioned film laminating and peeling processes.

[0061] Among them, the specific structure of the slide groove and slide pin can be found in Figure 4 The enlarged portion can avoid interference between the shift rod 34 and the vertical rod 33 in terms of travel.

[0062] In one of the more preferred embodiments, the swing range of the connecting rod 32 is limited by the horizontal state of the rotation point, and the rotation range at the upper part is larger than the rotation range at the lower part.

[0063] See Figure 9-11 By designing the rotation range of the connecting rod 32, the sliding frame 30 and the lifting frame 29 can be respectively Figure 9and Figure 11 state, which ensures that Figure 11 In the pressing state, the tension spring 31 can exert sufficient tension on the slide frame 30, so that the slide frame 30 and the lifting frame 29 can maintain sufficient downward pressure, thereby exerting sufficient pressing effect on the film 35.

[0064] In one of the more preferred embodiments, an implementation method for cleaning the film 35 during the film peeling process is provided;

[0065] The side wall of the receiving tray 2 is also formed with an extension plate 20, and a movable frame 21 is slidably installed on the top of the extension plate 20. The end of the first rotating shaft 7 passes through part of the side wall of the movable frame 21 and is rotatably connected to the penetration point. An air duct is opened inside the first rotating shaft 7, and a one-way valve is installed in the air duct. The outer wall of the intermediate roller 15 is annularly distributed with multiple groups of air vents 36 connected to the air duct. An injection component for intermittently injecting air into the air duct in the first rotating shaft 7 is also installed in the movable frame 21.

[0066] For details, please refer to Figure 5 and Figure 8 As can be seen from the above, during the film peeling process, when the film roll 14 rotates and rewinds, the air injection assembly injects air into the first rotating shaft 7, and then the air is ejected from the air vent 36 and along the surface of the film 35, thereby spraying off the soil particles adhering to the film 35, thereby cleaning the film 35 and facilitating its subsequent reuse;

[0067] During the lamination process, the air injection component will not inject air into the air passage to avoid affecting the film 35 due to air flow.

[0068] In one of the more preferred embodiments, an implementation of a gas injection assembly is provided;

[0069] The gas injection assembly includes a circular groove 22 provided on the inner wall of the movable frame 21, and the circular groove 22 is eccentrically designed to be connected to the first rotating shaft 7. A docking tube 23 coaxially arranged with the first rotating shaft 7 is rotatably installed on the inner wall of the circular groove 22, and the docking tube 23 is rotatably plugged into the end opposite to the first rotating shaft 7. A connecting piece is also installed between the first rotating shaft 7 and the docking tube 23, and the connecting piece is used to connect or disconnect the first rotating shaft 7 and the docking tube 23. A section of the docking tube 23 located in the circular groove 22 is set as a piston box 24, and a piston block 25 is slidably installed on the inner wall of the piston box 24. A piston rod 26 is fixed through the interior of the piston block 25, and the two ends of the piston rod 26 pass through the two sides of the piston box 24 and can intermittently contact the inner wall of the circular groove 22. The side walls of the piston box 24 on both sides of the piston block 25 are provided with air inlets that can suction air in one direction, and a channel is provided in the docking tube 23 to connect the air duct in the first rotating shaft 7 with the piston box 24.

[0070] See Figure 5 and Figure 6 During the laminating stage, the first rotating shaft 7 and the docking tube 23 are disconnected by the connecting piece, so that when the first rotating shaft 7 rotates, it will not drive the docking tube 23 to rotate, and when the first rotating shaft 7 moves, it will drive the moving frame 21 to move together;

[0071] During the film peeling stage, the first rotating shaft 7 and the docking tube 23 are first connected by a connecting piece. In this way, when the first rotating shaft 7 rotates, it will drive the docking tube 23 to rotate together, thereby driving the piston box 24 to rotate. Since the docking tube 23 and the circular groove 22 are eccentrically designed, when the piston box 24 rotates, the two ends of the piston rod 26 will intermittently contact and slide with the inner wall of the circular groove 22, so that the piston rod 26 slides back and forth under the action of the inner wall of the circular groove 22 while the piston box 24 rotates. In this way, the reciprocating sliding of the piston block 25 can make the air cavities formed on both sides alternately inhale air from the outside and alternately discharge it into the air duct from the channel, and then discharge it from the bleed hole 36, thereby achieving the above-mentioned purpose of cleaning the film 35.

[0072] In one of the more preferred embodiments, the connecting member includes a connecting sleeve 27 that is slidably mounted on the outer wall of the first rotating shaft 7 and the docking tube 23. The outer walls of the joints of the first rotating shaft 7 and the docking tube 23 are both provided with flat key grooves, and the inner wall of the connecting sleeve 27 is fixed with a flat key that matches them.

[0073] For details on the connectors, see Figure 5 The enlarged part is obtained by sliding the connecting sleeve 27 so that when it is located on the first rotating shaft 7 or the docking tube 23, the two are in a disconnected state. When the connecting sleeve 27 is slidably adjusted to the docking position of the first rotating shaft 7 and the docking tube 23, the first rotating shaft 7 and the docking tube 23 can be connected, thereby achieving the purpose of activating or deactivating the above-mentioned gas injection component.

[0074] In one of the more preferred embodiments, the length of the pressure strip is greater than the width of the film 35 and the pressure strip is detachably mounted on the top of the receiving tray 2 by bolts.

[0075] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0076] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A vegetable seedling raising device, comprising a chassis (1) and a receiving tray (2) that can be assembled and mounted together, wherein the receiving tray (2) has a through groove on its surface for inserting and placing a seedling raising tray (3), and the top surface of the seedling raising tray (3) after placement is flush with the top surface of the receiving tray (2), characterized in that: Also includes: A film coating portion is provided above the receiving disc (2), the film coating portion comprising a film winding roller (14) wound with a film (35), and the film winding roller (14) can move horizontally along the top surface of the receiving disc (2) and simultaneously perform a winding or unwinding action; Two groups of die parts are respectively provided on both sides of the receiving plate (2) in the longitudinal direction, and the die parts are provided with multiple groups, and the die parts include a sliding frame (30) that can be adjusted to move up and down, and the sliding frames (30) corresponding to the two sides will first approach each other and then move away from each other while moving downward, and will contact and squeeze the film (35) during the process of moving away; Two groups of pressure strips are respectively arranged on both sides of the receiving plate (2) in the transverse direction and can be removed or installed. A coating area is formed between the two groups of pressure strips and the two groups of pressure mold parts.

2. The vegetable seedling raising device according to claim 1, characterized in that: The receiving tray (2) is fixed with side frames (4) at the top of both longitudinal sides, and the long slots (5) on the two side frames (4) are both installed with electric sliders (6) that can slide and adjust, and a first rotating shaft (7) is rotatably installed between the two electric sliders (6), and an intermediate roller (15) is fixed to the outer wall of the first rotating shaft (7), and the outer walls of the first rotating shaft (7) near both sides are both installed with swing rods (11) that can intermittently reciprocate and rotate, and the outer walls of the two swing rods (11) are rotatably installed with a first rotating shaft (7) that can rotate and adjust. The second rotating shaft (9) is fixedly mounted on the film rolling roller (14), and the film (35) pulled out is passed over the top of the middle roller (15) and laid on the surface of the receiving tray (2) and the seedling tray (3). A first gear (8) is fixed on the outer wall of the first rotating shaft (7), and a second gear (10) is fixed on the outer wall of the second rotating shaft (9). The first gear (8) and the second gear (10) are meshed with each other. A rack (19) meshed with the first gear (8) is also fixed on the top of the seedling tray (3).

3. The vegetable seedling raising device according to claim 2, characterized in that: The side wall of the side frame (4) is provided with a transverse groove (17), and an angle groove (18) is provided in the middle of the transverse groove (17), and the angle groove (18) is bent downward. The end of the swing rod (11) is fixed with a pin rod (16) slidably installed in the transverse groove (17).

4. The vegetable seedling raising device according to claim 2, characterized in that: The outer walls of the two electric sliders (6) are also fixed with a film pressing roller (13) via a fixing rod (12), and the film pressing roller (13) is located on the side of the middle roller (15) away from the film winding roller (14), and the pulled film (35) passes around from under the film pressing roller (13).

5. The vegetable seedling raising device according to claim 1, characterized in that: The die portion includes a groove (28) provided on the side wall of the side frame (4), a lifting frame (29) is vertically slidably mounted on the inner wall of the groove (28), the sliding frame (30) is horizontally slidably mounted in the lifting frame (29), and the openings of the lifting frame (29) and the sliding frame (30) are opposite to each other, a tension spring (31) is further connected between the sliding frame (30) and the inner wall of the lifting frame (29), and a connecting rod ( 32), and the outer walls of the lifting frame (29) and the sliding frame (30) are provided with hollow grooves for the movement of the connecting rod (32), a shifting rod (34) is rotatably installed between the chassis (1) and the receiving plate (2) through a bracket, and a vertical rod (33) is fixed to the bottom end of the lifting frame (29) and penetrates the bottom of the receiving plate (2), and the bottom end of the vertical rod (33) is connected to the shifting rod (34) through a sliding groove and sliding pin structure, and the vertical rod (33) is slidably connected to the penetration of the receiving plate (2).

6. The vegetable seedling raising device according to claim 5, characterized in that: The swing range of the connecting rod (32) is limited by the horizontal state of the rotation point, and the rotation range at the top is larger than the rotation range at the bottom.

7. The vegetable seedling raising device according to claim 2, characterized in that: The side wall of the receiving plate (2) is further formed with an extension plate (20), and a movable frame (21) is slidably mounted on the top of the extension plate (20). The end of the first rotating shaft (7) penetrates part of the side wall of the movable frame (21) and is rotatably connected to the penetration portion thereof. An air duct is provided inside the first rotating shaft (7), and a one-way valve is installed in the air duct. The outer wall of the intermediate roller (15) is annularly distributed with a plurality of groups of air leakage holes (36) connected to the air duct. An air injection component for intermittently injecting air into the air duct is also installed in the movable frame (21).

8. The vegetable seedling raising device according to claim 7, characterized in that: The gas injection assembly includes a circular groove (22) provided on the inner wall of the movable frame (21), and the circular groove (22) is eccentrically designed with respect to the first rotating shaft (7), and a butt joint (23) coaxially arranged with the first rotating shaft (7) is rotatably installed on the inner wall of the circular groove (22), and the butt joint (23) is rotatably plugged into the end opposite to the first rotating shaft (7), and a connecting piece is further installed between the first rotating shaft (7) and the butt joint (23), and the connecting piece is used to connect or disconnect the first rotating shaft (7) and the butt joint (23), and the butt joint (23) is positioned A section in the circular groove (22) is provided as a piston box (24), the inner wall of which is slidably mounted a piston block (25), the interior of which is penetrated and fixed with a piston rod (26), the two ends of which pass through both sides of the piston box (24) and can intermittently contact the inner wall of the circular groove (22), the side walls of the piston box (24) on both sides of the piston block (25) are provided with air inlets capable of one-way air suction, and a passage is provided in the butt joint pipe (23) to connect the air duct with the piston box (24).

9. The vegetable seedling raising device according to claim 8, characterized in that: The connecting member comprises a connecting sleeve (27) which is slidably mounted on the outer wall of the first rotating shaft (7) and the butt joint (23); the outer wall of the butt joint of the first rotating shaft (7) and the butt joint (23) is provided with a flat key groove, and the inner wall of the connecting sleeve (27) is fixed with a flat key which matches the first rotating shaft (7) and the butt joint (23).

10. The vegetable seedling raising device according to any one of claims 1 to 9, characterized in that: The length of the pressure strip is greater than the width of the film (35), and the pressure strip is detachably mounted on the top of the receiving plate (2) by means of bolts.

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