Tobacco seedling substrate unsealing machine

Abstract

The invention discloses a tobacco seedling raising substrate unsealing machine, and relates to the technical field of tobacco seedling raising. The tobacco seedling substrate unsealing machine comprises a first machine frame, a second machine frame and a sealing device, the slope conveying mechanism is arranged at the top of the first rack; the at least one group of first bag breaking mechanism is arranged right above the slope conveying mechanism along the material feeding direction; the second rack is adjacent to the first rack and is positioned at the tail end of the slope conveying mechanism; and the second bag breaking mechanism is arranged at the top of the second rack and is adjacent to the tail end of the slope conveying mechanism. According to the invention, the following obvious defects of low efficiency, slow bag breaking speed and consumption of a large amount of manpower and time existing in a traditional tobacco seedling substrate unsealing machine are overcome; the labor intensity is high and potential safety hazards exist; and the problems of unsmooth material pouring, excessive residues or secondary treatment caused by incomplete tearing of the crevasses due to the fact that the consistency of the shape, the size and the position of the crevasses at each time is difficult to ensure by manual operation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco seedling cultivation, in particular to a tobacco seedling cultivation matrix unpacking machine. Background Art

[0002] At present, the main seedling matrix materials are peat, expanded perlite, and vermiculite. Among them, "peat" is also called "peat" or "peat coal". Its rich nutritional components are very beneficial to plants, so "peat" is widely used to build lawns, grassland gardens, plant flowers and tobacco, etc. It is one of the best compound fertilizer raw materials, so it is called "peat".

[0003] In modern large-scale agricultural production, powdered, granular, or fibrous agricultural materials, such as seedling substrates, feed, and organic fertilizers, are often packaged, transported, and stored in woven bags, burlap sacks, or composite plastic woven bags (commonly known as "ton bags"). While this type of packaging facilitates the loading and unloading of bulk materials and logistics, it requires the bags to be broken open to release the contents before use.

[0004] Traditional bag-breaking operations rely primarily on manual labor, with operators typically using knives (such as sickles and paper cutters) or sharp tools to manually cut or puncture the bags. This method presents the following significant drawbacks: 1. Inefficiency: Bag-breaking is slow, labor-intensive, and time-consuming, creating a production bottleneck particularly during large-volume processing (e.g., fertilizer batch storage or feed feeding lines). 2. Labor-intensive and safety-related hazards: Repetitive movements can easily lead to operator fatigue. Sharp tools can easily cause cuts, punctures, and other safety hazards during operation, especially in slippery environments or when fatigued. 3. Unstable bag-breaking results: Manual operation makes it difficult to ensure consistent shape, size, and position of the ruptures, leading to poor material pouring, excessive residue, or incomplete tearing requiring secondary processing, resulting in material waste and inconsistent operations. Currently, no effective solutions have been proposed for these issues. Summary of the Invention

[0005] Purpose of the invention: To provide a tobacco seedling substrate unpacking machine to at least solve one of the problems existing in the above-mentioned prior art.

[0006] Technical solution: A tobacco seedling substrate unpacking machine, comprising: a first rack; a slope conveying mechanism, disposed on the top of the first frame; At least one first bag breaking mechanism is arranged directly above the slope conveying mechanism along the material feeding direction; a second frame disposed adjacent to the first frame and located at the end of the inclined conveying mechanism; a second bag breaking mechanism, disposed on the top of the second frame and adjacent to the end of the inclined conveying mechanism; a material dividing mechanism, disposed adjacent to the second bag breaking mechanism and on the second frame; a packaging bag collecting mechanism, disposed at the end of the distributing mechanism; and a material conveying mechanism, horizontally arranged on the second frame and located directly below the tobacco seedling culture matrix unpacking mechanism, the material distributing mechanism and the packaging bag collecting mechanism; Among them, at least one group of the first bag breaking mechanisms is used to position and break the upper surface of the packaging bag in motion on the slope conveying mechanism, and the second bag breaking mechanism is used to position and break the lower surface of the packaging bag, and the positioned and broken packaging bags are conveyed to the material dividing mechanism to respectively transfer the materials and discarded packaging bags to the material conveying mechanism and the packaging bag collecting mechanism.

[0007] Preferably, third bag breaking mechanisms facing both sides of the packaging bag are provided on both sides of the slope conveying mechanism. The third bag breaking mechanism is located close to the side of the second bag breaking mechanism and is used for directional bag breaking on both sides of the packaging bag.

[0008] Preferably, the number of the first bag breaking mechanisms is two groups, and the two groups of the first bag breaking mechanisms are sequentially arranged directly above the slope conveying mechanism, and their output ends are respectively located at designated positions of the packaging bags.

[0009] Preferably, the front ends of the first bag breaking mechanism, the second bag breaking mechanism and the third bag breaking mechanism are all provided with position sensors, which are used to detect the real-time moving position of the packaging bag and feed back the signal to the electric control box arranged on the second frame. The electric control box sends out control signals to control the first bag breaking mechanism, the second bag breaking mechanism and the third bag breaking mechanism to operate in sequence and in an orderly manner.

[0010] Preferably, the material distribution mechanism comprises: a roller arranged along the material feeding direction, a plurality of through holes being evenly opened on the roller, and an outer surface of the roller is covered with a shell arranged on the second frame, and the shell is used to prevent material splashing and directional flow; When the second bag breaking mechanism is activated, the electric control box sends a control signal to control the rotation of the drum.

[0011] Preferably, a driving mechanism electrically connected to the electric control box is provided on one side of the housing near the top thereof, and an output end of the driving mechanism is engaged with a gear wheel provided on one side of the outer surface of the housing for transmission; The inner wall of the housing is further provided with a photoelectric sensor, which is electrically connected to the electric control box; When the photoelectric sensor detects the rotation of the drum, the electric control box sends a control signal according to the detection signal fed back by the photoelectric sensor to control the action of the material conveying mechanism.

[0012] Preferably, the inner wall of the drum is provided with at least one spiral feeding portion for the packaging bag along the material feeding direction, so that the packaging bag can move in a directional manner during the rotation process.

[0013] Preferably, the packaging bag collecting mechanism is semi-open and obliquely downward, and a push rod mechanism is provided on one side of the packaging bag collecting mechanism to push the discarded packaging bags away from the packaging bag collecting mechanism to a designated position; A position sensor is also provided in the packaging bag collecting mechanism, and the push rod mechanism and the position sensor are electrically connected to the electric control box respectively; The position sensor transmits the detected waste bag signal to the electric control box, and the electric control box sends a control signal to control the action of the push rod mechanism.

[0014] Preferably, a lifting mechanism is provided on the side of the first frame away from the second bag breaking mechanism, and the lifting mechanism is electrically connected to the electric control box. The electric control box controls the movement of the lifting mechanism according to the weight of the material so that the slope of the slope conveying mechanism matches the weight of the packaging bag.

[0015] Preferably, the material conveying mechanism is provided with a vibration component, the vibration component is electrically connected to the electric control box, and the vibration component is used for uniform distribution of materials.

[0016] Beneficial effect: In the embodiment of the present application, an integrated automatic bag breaking and material separation method is adopted, and at least one group of the first bag breaking mechanisms is positioned on the upper surface of the packaging bag in motion on the slope conveying mechanism for bag breaking, and the second bag breaking mechanism is used to position the lower surface of the packaging bag for bag breaking, and the packaging bags after positioning and breaking are conveyed to the material separation mechanism, so as to directionally transfer the materials and discarded packaging bags to the material conveying mechanism and the packaging bag collection mechanism respectively, thereby achieving the purpose of multi-angle bag breaking and automatic material separation, thereby realizing the technical effect of improving production efficiency, reducing labor intensity and improving bag breaking stability, and thus solving the problem of the traditional tobacco seedling matrix unpacking machine. The method has the following obvious disadvantages: 1. Low efficiency: The bag breaking speed is slow, which consumes a lot of manpower and time, especially in large-scale processing (such as the storage of a whole batch of fertilizers, feed feeding lines), which becomes a production bottleneck; 2. High labor intensity and safety hazards: Repetitive actions can easily lead to operator fatigue; sharp tools can easily cause cuts, punctures and other safety accidents to personnel during operation, especially when the operating environment is slippery or the personnel are tired. The risk is higher; 3. Unstable bag breaking effect: Manual operation is difficult to ensure the consistency of the shape, size and position of the rupture each time, resulting in poor material pouring, excessive residue or incomplete tearing of the rupture, which requires secondary processing, resulting in material waste and technical problems of inconsistent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the tobacco seedling substrate unsealing machine of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of another tobacco seedling substrate unsealing machine of the present invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the tobacco seedling substrate unsealing machine of the present invention; Figure 4 This is a schematic diagram of the internal three-dimensional structure of another tobacco seedling substrate unpacking machine of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the slope conveying mechanism and the first bag breaking mechanism of the tobacco seedling culture matrix unpacking machine of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the material dividing mechanism and the second bag breaking mechanism of the tobacco seedling culture matrix unpacking machine of the present invention; and Figure 7 It is a planar structural schematic diagram of the material dividing mechanism and the second bag breaking mechanism of the tobacco seedling culture matrix unsealing machine of the present invention.

[0018] The accompanying drawings are: 10 first rack; 20. Slope conveying mechanism; 30. The first bag breaking mechanism; 40. Second rack; 50. Second bag breaking mechanism; 60. Material distribution mechanism; 601. Roller; 602. Through hole; 603. Housing; 604. Driving mechanism; 605. Packaging bag spiral feeding unit; 70. Packaging bag collection mechanism; 80. Material conveying mechanism; 90. Electric control box. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figure 1-7 As shown, the present application relates to a tobacco seedling substrate unpacking machine. Figure 1-5As shown, the tobacco seedling substrate unpacking machine includes: a first frame 10; it can achieve good fixing and supporting effects, and at the same time, it can also achieve good coordination effects between other components.

[0024] A slope conveying mechanism 20 is provided on the top of the first frame 10; it can achieve good material conveying and feeding effects, thereby achieving the effect of improving production efficiency.

[0025] At least one first bag breaking mechanism 30 is arranged directly above the slope conveying mechanism 20 along the material feeding direction; it can achieve a good bag breaking effect on the upper surface of the packaging bag, thereby providing a guarantee for the good separation of subsequent materials.

[0026] A second frame 40 is provided adjacent to the first frame 10 and is located at the end of the slope conveying mechanism 20; it can achieve a good mechanism extension effect, thereby providing a basis for the assembly of other components.

[0027] A second bag breaking mechanism 50 is arranged on the top of the second frame 40 and adjacent to the end of the slope conveying mechanism 20; it can achieve the effect of breaking the lower surface of the packaging bag, thereby ensuring that the packaging bag is in a completely damaged state, thereby providing a guarantee for subsequent good material distribution.

[0028] A material dividing mechanism 60 is provided on the second frame 40 adjacent to the second bag breaking mechanism 50 and can achieve a good material dividing effect.

[0029] A packaging bag collecting mechanism 70 is provided at the end of the material dividing mechanism 60 and can achieve a good waste packaging bag collection effect.

[0030] A material conveying mechanism 80 is horizontally arranged on the second frame 40 and is located directly below the tobacco seedling matrix unpacking mechanism, the material dividing mechanism 60 and the packaging bag collecting mechanism 70; it can achieve the effect of directional conveying of the divided materials.

[0031] It should be noted that the material conveying mechanism 80 may be a rotary motor, an output end of the rotary motor is provided with a rotating shaft, and a conveyor belt is provided on the rotating shaft.

[0032] The upper surfaces of the traveling packaging bags on the inclined conveying mechanism 20 are positioned and broken by at least one set of the first bag-breaking mechanisms 30, and the lower surfaces of the packaging bags are positioned and broken by the second bag-breaking mechanisms 50. The positioned and broken packaging bags are then conveyed to the material-distributing mechanism 60, whereby the materials and discarded packaging bags are directionally transferred to the material conveying mechanism 80 and the packaging bag collection mechanism 70, respectively. By directionally breaking the upper and lower surfaces of the traveling packaging bags, the materials inside are exposed. Simultaneously, the directionally broken packaging bags are distributed by the material-distributing mechanism 60, thereby evenly distributing the materials to the material conveying mechanism 80, and the discarded packaging bags are conveyed to the packaging bag collection mechanism 70, thus completing the bag-breaking, material-distributing, and collection processes.

[0033] From the above description, it can be seen that this application achieves the following technical effects: In the embodiment of the present application, an automatic bag breaking and material separation integrated mode is adopted, wherein at least one group of the first bag breaking mechanisms 30 is positioned on the upper surface of the packaging bag in motion on the slope conveying mechanism 20 to break the bag, and the second bag breaking mechanism 50 is used to position the lower surface of the packaging bag to break the bag, and the packaging bag after positioning and breaking is conveyed to the material separation mechanism 60, so as to directionally transfer the material and the discarded packaging bag to the material conveying mechanism 80 and the packaging bag collecting mechanism 70 respectively, thereby achieving the purpose of multi-angle bag breaking and automatic material separation, thereby realizing the technical effect of improving production efficiency, reducing labor intensity and improving bag breaking stability, thereby solving the problem of traditional tobacco seedling culture medium. The unsealing machine method has the following obvious disadvantages: 1. Low efficiency: The bag breaking speed is slow, which consumes a lot of manpower and time, especially in large-scale processing (such as the storage of a whole batch of fertilizers, feed feeding lines) becomes a production bottleneck; 2. High labor intensity and safety hazards: repetitive actions can easily lead to operator fatigue; sharp tools can easily cause cuts, punctures and other safety accidents to personnel during operation, especially when the operating environment is slippery or the personnel are tired. The risk is higher; 3. Unstable bag breaking effect: Manual operation makes it difficult to ensure the consistency of the shape, size and position of each rupture, resulting in poor material pouring, excessive residue or incomplete tearing of the rupture, which requires secondary processing, resulting in material waste and technical problems of inconsistent operations.

[0034] Furthermore, third bag-breaking mechanisms are provided on both sides of the inclined conveying mechanism 20, facing the sides of the packaging bag. These third bag-breaking mechanisms are located near the second bag-breaking mechanism 50 and are used to directional break the packaging bag on both sides. It can be understood that this directional breaking of the packaging bag on both sides can achieve the effect of further breaking the outer surface of the packaging bag, thereby further improving discharge efficiency.

[0035] It should be noted that the third bag breaking mechanism may be a rotating motor, an output end of the rotating motor is provided with a rotating shaft, and a plurality of cutting blades are provided on the rotating shaft.

[0036] Furthermore, the first bag-breaking mechanisms 30 are provided in two sets, each of which is sequentially positioned directly above the inclined conveying mechanism 20, with its output ends located at designated locations on the packaging bag. This allows for effective bag-breaking on the upper surface of the packaging bag; by providing multiple sets of first bag-breaking mechanisms 30, the bag can be broken at multiple locations on the upper surface of the packaging bag, thereby ensuring a good discharge effect.

[0037] Preferably, the number of the first bag breaking mechanisms 30 is multiple groups; they can be adjusted according to the actual usage scenario, so that the first bag breaking mechanisms 30 can perform good multi-position bag breaking effects on the upper surface of the packaging bag.

[0038] It should be noted that the first bag breaking mechanism 30 may be a rotary motor, an output end of the rotary motor is provided with a rotating shaft, and a plurality of cutting blades are provided on the rotating shaft.

[0039] Furthermore, position sensors are provided at the front ends of the first bag-breaking mechanism 30, the second bag-breaking mechanism 50, and the third bag-breaking mechanism. These position sensors are used to detect the real-time position of the packaging bag and feed back the signal to the electrical control box 90 mounted on the second frame 40. The electrical control box 90 then issues control signals to control the first bag-breaking mechanism 30, the second bag-breaking mechanism 50, and the third bag-breaking mechanism to operate sequentially. It can be understood that this can accurately detect the real-time position of the packaging bag, thereby providing an accurate trigger signal for controlling the operation of the tobacco seedling substrate unsealing mechanism, thereby achieving a good bag-breaking effect, reducing energy consumption, and protecting operators.

[0040] like Figure 6 As shown, the material distribution mechanism 60 includes: a roller 601 arranged along the material feeding direction, a plurality of through holes 602 are evenly opened on the roller 601, and the outer surface of the roller 601 is covered with a shell 603 arranged on the second frame 40, and the shell 603 is used to prevent material splashing and directional flow; When the second bag breaking mechanism 50 is activated, the electric control box 90 sends a control signal to control the rotation of the drum 601. It can be understood that a good control effect can be achieved, thereby achieving a good rolling effect, thereby ensuring a good material separation effect.

[0041] Furthermore, the housing 603 is provided with a driving mechanism 604 electrically connected to the electric control box 90 near its top side, and the output end of the driving mechanism 604 is engaged with a gear wheel provided on one side of the outer surface of the housing 603 for transmission; The inner wall of the housing 603 is also provided with a photoelectric sensor, which is electrically connected to the electric control box 90; When the photoelectric sensor detects the rotation of the roller 601, the electric control box 90 sends a control signal based on the detection signal fed back by the photoelectric sensor to control the movement of the material conveying mechanism 80. It can be understood that good control and linkage effects can be achieved, thereby ensuring good material conveying effects.

[0042] Furthermore, the inner wall of the drum 601 is provided with at least one spiral bag feed portion 605 along the material feed direction to provide directional movement of the bags during rotation. As can be appreciated, this allows for a good spiral feed effect, thereby delivering the discarded bags to a designated location while also evenly distributing the contents onto the material conveying mechanism 80.

[0043] Furthermore, the packaging bag collecting mechanism 70 is semi-open and obliquely downward, and a push rod mechanism is provided on one side of the packaging bag collecting mechanism 70 to push the discarded packaging bags away from the packaging bag collecting mechanism 70 to a designated position; A position sensor is also provided in the packaging bag collecting mechanism 70, and the push rod mechanism and the position sensor are electrically connected to the electric control box 90 respectively; The position sensor transmits a detected waste bag signal to the electrical control box 90, which then issues a control signal to control the movement of the push rod mechanism. As can be appreciated, this effectively pushes the waste bags away from the bag collection mechanism 70, thereby preventing their accumulation.

[0044] It should be noted that the push rod mechanism can be a cylinder, and a push plate is provided at the output end of the cylinder, so as to achieve a good pushing effect.

[0045] Furthermore, a lifting mechanism is provided on the side of the first frame 10 away from the second bag-breaking mechanism 50. The lifting mechanism is electrically connected to the electrical control box 90. The electrical control box 90 controls the lifting mechanism according to the weight of the material, so that the slope of the inclined conveying mechanism 20 matches the weight of the packaging bag. As can be understood, a good lifting effect can be achieved, thereby meeting the needs of various usage scenarios and achieving flexible use.

[0046] Furthermore, the material conveying mechanism 80 is provided with a vibration component, which is electrically connected to the electrical control box 90 and is used to evenly distribute the material. It is understood that a good vibration effect can be achieved, thereby further evenly distributing the material.

[0047] Preferably, the vibration component can be an electromagnetic vibrator component or a mechanical cam vibration component.

[0048] The present application also relates to a control method for a tobacco seedling substrate unsealing machine, comprising the above-mentioned tobacco seedling substrate unsealing machine; The following steps are also included: Based on the weight sensor detecting the weight of the packaging bag, the electric control box 90 controls the lifting mechanism to dynamically adjust the slope angle; The packaging bags are driven to move forward by the adjusted slope conveying mechanism 20 .

[0049] When the first position sensor detects that the packaging bag reaches the top bag breaking station, the electric control box 90 triggers the first bag breaking mechanism 30 to cut the upper surface; When the lateral position sensor detects that the packaging bag enters the side bag breaking station, the electric control box 90 activates the third bag breaking mechanism to cut both sides; When the second position sensor detects that the packaging bag is off the slope, the electric control box 90 simultaneously controls the second bag breaking mechanism 50 to cut the lower surface of the packaging bag; At the same time, the roller 601 of the material distribution mechanism 60 is started to rotate, and the material falls through the through hole 602 of the roller 601 to the material conveying mechanism 80; in conjunction with it, the photoelectric sensor detects the rotation signal of the roller 601, and the electric control box 90 starts the material conveying mechanism 80 and the vibration component; At the same time, after the empty bag is introduced into the packaging bag collecting mechanism 70, the position sensor triggers the push rod mechanism to push away the waste bag.

[0050] According to an embodiment of the present invention, preferably, the lateral and bottom bag breaking coordination includes: The relationship between the cutting depth D of the third bag breaking mechanism and the cutting timing T of the second bag breaking mechanism: When D>15mm, T=cutting completion time+0.5 seconds; When D≤15mm, T=cutting completion time.

[0051] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. Tobacco seedling substrate unsealing machine, characterized in that, include: a first rack; a slope conveying mechanism, disposed on the top of the first frame; At least one first bag breaking mechanism is arranged directly above the slope conveying mechanism along the material feeding direction; a second frame disposed adjacent to the first frame and located at the end of the inclined conveying mechanism; a second bag breaking mechanism, disposed on the top of the second frame and adjacent to the end of the inclined conveying mechanism; a material dividing mechanism, disposed adjacent to the second bag breaking mechanism and on the second frame; a packaging bag collecting mechanism, arranged at the end of the distributing mechanism; and a material conveying mechanism, horizontally arranged on the second frame and located directly below the tobacco seedling culture matrix unpacking mechanism, the material distributing mechanism and the packaging bag collecting mechanism; Among them, at least one group of the first bag breaking mechanisms is used to position and break the upper surface of the packaging bag in motion on the slope conveying mechanism, and the second bag breaking mechanism is used to position and break the lower surface of the packaging bag, and the positioned and broken packaging bags are conveyed to the material dividing mechanism to respectively transfer the materials and discarded packaging bags to the material conveying mechanism and the packaging bag collecting mechanism.

2. The tobacco seedling substrate unsealing machine according to claim 1, characterized in that: A third bag breaking mechanism facing both sides of the packaging bag is provided on both sides of the slope conveying mechanism. The third bag breaking mechanism is located close to the side of the second bag breaking mechanism and is used for directional bag breaking on both sides of the packaging bag.

3. The tobacco seedling substrate unsealing machine according to claim 1, characterized in that: There are two groups of the first bag breaking mechanisms, and the two groups of the first bag breaking mechanisms are sequentially arranged directly above the slope conveying mechanism, and their output ends are respectively located at designated positions of the packaging bags.

4. The tobacco seedling substrate unsealing machine according to claim 2, characterized in that: Position sensors are provided at the front ends of the first bag breaking mechanism, the second bag breaking mechanism and the third bag breaking mechanism. The position sensors are used to detect the real-time moving position of the packaging bag and feed back the signal to the electric control box arranged on the second frame. The electric control box sends control signals to control the first bag breaking mechanism, the second bag breaking mechanism and the third bag breaking mechanism to operate in sequence and in an orderly manner.

5. The tobacco seedling substrate unsealing machine according to claim 4, characterized in that: The material distribution mechanism includes: a roller arranged along the material feeding direction, a plurality of through holes are evenly opened on the roller, and the outer surface of the roller is covered with a shell arranged on the second frame, and the shell is used to prevent the material from splashing and directional flow; When the second bag breaking mechanism is activated, the electric control box sends a control signal to control the rotation of the drum.

6. The tobacco seedling substrate unsealing machine according to claim 5, characterized in that: The housing is provided with a driving mechanism electrically connected to the electric control box on one side near the top thereof, and the output end of the driving mechanism is meshed with a gear wheel provided on one side of the outer surface of the housing for transmission; The inner wall of the housing is further provided with a photoelectric sensor, which is electrically connected to the electric control box; When the photoelectric sensor detects the rotation of the drum, the electric control box sends a control signal according to the detection signal fed back by the photoelectric sensor to control the action of the material conveying mechanism.

7. The tobacco seedling substrate unsealing machine according to claim 5, characterized in that: At least one packaging bag spiral feeding portion is provided on the inner wall of the drum along the material feeding direction, so that the packaging bag can move in a direction during the rotation process.

8. The tobacco seedling substrate unsealing machine according to claim 4, characterized in that: The packaging bag collecting mechanism is semi-open and obliquely downward, and a push rod mechanism is provided on one side of the packaging bag collecting mechanism to push the discarded packaging bags away from the packaging bag collecting mechanism to a designated position; A position sensor is also provided in the packaging bag collecting mechanism, and the push rod mechanism and the position sensor are electrically connected to the electric control box respectively; The position sensor transmits the detected waste bag signal to the electric control box, and the electric control box sends a control signal to control the action of the push rod mechanism.

9. The tobacco seedling substrate unsealing machine according to claim 4, characterized in that: A lifting mechanism is provided on the side of the first frame away from the second bag breaking mechanism. The lifting mechanism is electrically connected to the electric control box. The electric control box controls the movement of the lifting mechanism according to the weight of the material so that the slope of the slope conveying mechanism matches the weight of the packaging bag.

10. The tobacco seedling substrate unsealing machine according to claim 4, characterized in that: The material conveying mechanism is provided with a vibration component, the vibration component is electrically connected to the electric control box, and the vibration component is used for uniform distribution of materials.

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