Negative pressure sponge taking mechanism

Abstract

The utility model relates to the field of edible mushroom production equipment, in particular to a negative pressure sponge taking mechanism which comprises the following components: a rack, a negative pressure fan mounted at the bottom of the rack and connected with a cotton suction component through a pipeline system, the pipeline system comprises a conveying hard pipe and a connecting hose, and the conveying hard pipe is fixedly mounted on a frame of the rack through a hoop; the cotton moving assembly comprises an upper mounting plate, a lower mounting plate, a motor, a speed reducer, a gear, a rack and a guide rail, efficient and rapid adsorption of sponges is achieved through the negative pressure environment generated by a negative pressure fan and the combination of a cotton plugging air cylinder, a cotton suction pipe and a cotton plugging rod in the cotton suction assembly, the non-contact cotton taking mode improves the cotton taking efficiency, and the cotton taking effect is good. Sponge damage possibly caused by traditional mechanical clamping is avoided, the cotton moving assembly adopts a precise transmission system of a motor, a speed reducer, a gear, a rack and a guide rail, and the accuracy and stability of the upper mounting plate and the cotton suction assembly during transverse movement are ensured.

Description

Technical Field

[0001] The utility model relates to the field of edible mushroom production equipment, in particular to a negative pressure sponge taking mechanism. Background Art

[0002] During the cultivation of edible mushrooms, plugging sponges into the mushroom bags is a crucial step, which is essential for maintaining the humidity and air permeability inside the mushroom bags. However, the traditional sponge plugging methods have many deficiencies, which have promoted the research, development and application of new sponge plugging equipment.

[0003] I. Defects of Manual Sponge Plugging

[0004] Manual sponge plugging is a traditional operation method, but its efficiency is extremely low and cannot meet the needs of large-scale production. At the same time, manual operation has a high labor intensity, which is prone to problems such as fatigue of workers and hand injuries. More seriously, manual operation is difficult to ensure hygienic conditions, increasing the risk of mushroom bag infection, thus affecting the yield and quality of edible mushrooms.

[0005] II. Deficiencies of Existing Sponge Plugging Equipment

[0006] To overcome the defects of manual sponge plugging, some manufacturers have developed automatic or semi-automatic sponge plugging equipment. However, these equipment still have many problems in the sponge taking method:

[0007] Needle Pricking Sponge Method:

[0008] This method uses a needle to pick up the sponge. However, due to the compressibility of the sponge, it is easily squeezed due to friction during transportation, resulting in difficult to accurately control the queuing distance.

[0009] When picking up the sponge with a needle, eccentricity is likely to occur, making the sponge easy to fall during movement.

[0010] Even if the sponge does not fall, due to excessive eccentricity, it may also cause incomplete insertion into the mushroom bag, affecting the sponge plugging effect.

[0011] Sponge Clamping Method:

[0012] Compared with the needle pricking method, the sponge clamping method reduces the defect of the sponge falling during movement. However, during the sponge plugging process, there is a risk of pulling out the already inserted sponge.

[0013] Especially in the equipment using a conveyor belt sponge queuing mechanism, the quality of sponge clamping and plugging is even worse and difficult to meet the production requirements.

[0014] In addition, various sponge clamping methods often have complex structures, which not only increase the equipment cost, but may also lead to unqualified operation quality and cannot be recognized by mushroom farmers. Content of the Utility Model

[0015] (1) Technical problem to be solved

[0016] In view of the deficiencies of the prior art, the present utility model provides a negative pressure sponge taking mechanism.

[0017] (2) Technical solution

[0018] To achieve the above object, the present utility model provides the following technical solution: The negative pressure sponge taking mechanism of the present utility model includes the following components:

[0019] Frame: As the support structure of the entire mechanism, a negative pressure fan is installed at the bottom for generating a negative pressure environment;

[0020] Negative pressure fan: Connected to the cotton suction component through a pipeline system to achieve the adsorption of the sponge;

[0021] Pipeline system: Comprising a conveying hard pipe and a connecting hose for connecting the negative pressure fan and the cotton suction component to ensure the effective transmission of negative pressure. The conveying hard pipe is fixedly installed on the side frame of the frame through a hoop;

[0022] Cotton transfer component: Comprising an upper mounting plate, a lower mounting plate, a motor, a reducer, a gear, a rack and guide rails. The guide rails are installed on both sides of the top of the frame. The rack is fixedly installed on the inner side of one side of the top of the frame and is located below the guide rails. Both sides of the upper mounting plate are slidably connected to the guide rails. The motor and the reduction motor are installed on the upper mounting plate. The output end of the motor is adapted to the input end of the reduction motor. The output end of the reducer penetrates the upper mounting plate, and the output end of the reducer is engaged with the rack through a gear;

[0023] Cotton suction lifting component: The cotton suction lifting component adopts a telescopic pneumatic cylinder. The telescopic pneumatic cylinder is fixedly installed on the upper mounting plate. The output end of the telescopic pneumatic cylinder penetrates the upper mounting plate, and the lower mounting plate is installed at the output end of the telescopic pneumatic cylinder;

[0024] Cotton suction component: Comprising a connecting plate, a cotton plugging cylinder, a cotton plugging rod and a cotton suction pipe. The cotton plugging cylinder is fixedly installed on the lower mounting plate. The output end of the cotton plugging cylinder is connected to the connecting plate through a pneumatic telescopic rod. The cotton plugging rod is fixedly installed on the side of the connecting plate, and a plurality of cotton plugging rods are provided. A guide pipe is provided on the side of the lower mounting plate, and the guide pipe is perpendicular to the cotton plugging rod. The cotton plugging rod penetrates the guide pipe and the lower mounting plate. The cotton suction pipe is installed at the bottom of the lower mounting plate and is adapted to the cotton plugging rod and is located inside the cotton suction pipe. A negative pressure chamber is provided inside the lower mounting plate. The cotton suction pipe is communicated with the negative pressure chamber. One end of the connecting hose is communicated with the conveying pipeline, and the other end of the connecting hose penetrates the connecting plate and the lower mounting plate and is communicated with the negative pressure chamber.

[0025] Preferably, a sleeve is provided at the bottom of the cotton suction pipe. The sleeve is of a conical structure, and the diameter of the inlet of the sleeve is larger than the diameter of the connection between the sleeve and the cotton suction pipe.

[0026] Further preferably, a hydraulic telescopic rod is connected between the upper mounting plate and the lower mounting plate, and the hydraulic telescopic rod is located at the corners of the upper mounting plate and the lower mounting plate.

[0027] Again preferably, two cotton suction assemblies are symmetrically arranged on the lower mounting plate.

[0028] Preferably, pipe openings are symmetrically provided on the connecting plate, and the pipe openings are adapted to the connecting hoses.

[0029] Further preferably, two groups of pipe interfaces are symmetrically provided on the lower mounting plate, and two pipe interfaces are symmetrically provided in each group. The pipe interfaces are perpendicular to the pipe openings.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the present utility model provides a negative pressure sponge taking mechanism, which has the following beneficial effects:

[0032] High-efficiency cotton taking ability:

[0033] Through the negative pressure environment generated by the negative pressure fan, combined with the plugging cotton cylinder, the cotton suction pipe and the plugging cotton rod in the cotton suction assembly, the efficient and rapid adsorption of the sponge is realized. This non-contact cotton taking method not only improves the cotton taking efficiency, but also avoids the damage to the sponge that may be caused by traditional mechanical clamping.

[0034] Precise control:

[0035] The cotton transferring assembly adopts a precise transmission system of a motor, a reducer, gears, a rack and a guide rail, ensuring the accuracy and stability of the horizontal movement of the upper mounting plate and the cotton suction assembly.

[0036] Flexible adaptability:

[0037] The telescopic air cylinder serves as the cotton suction lifting assembly, which can adjust the height of the cotton suction assembly according to actual needs, so as to adapt to the sponge taking and placing requirements of different specifications and different stacking heights. In addition, the design of the connecting hose makes the pipeline system have a certain flexibility, which is convenient for installation and use at different positions.

[0038] Enhanced stability and reliability:

[0039] The additional hydraulic telescopic rod between the upper mounting plate and the lower mounting plate provides additional support and stability for the entire cotton suction assembly. Especially when moving at high speed or bearing a large load, it can effectively reduce vibration and deviation.

[0040] Improve production efficiency and reduce costs:

[0041] The multi-point adsorption design (i.e., two groups of cotton suction components and several cotton suction pipes are provided on the lower mounting plate) enables multiple sponges to be adsorbed simultaneously in one operation, greatly improving the production efficiency. At the same time, automatic cotton picking reduces manual intervention, lowers labor costs, and improves the overall automation level of the production line. Brief Description of the Drawings

[0042] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0043] Figure 2 It is a side view structural schematic diagram of the present utility model;

[0044] Figure 3 It is a top view structural schematic diagram of the present utility model;

[0045] Figure 4 It is a sectional structural schematic diagram of the cotton suction pipe of the present utility model;

[0046] Figure 5 It is a structural schematic diagram of the cotton suction component of the present utility model;

[0047] Figure 6 It is a structural schematic diagram of the lower mounting plate of the present utility model;

[0048] Figure 7 It is a structural schematic diagram of the connecting plate of the present utility model;

[0049] In the figures: 1, frame; 2, negative pressure fan; 3, conveying rigid pipe; 4, connecting hose; 5, upper mounting plate; 6, lower mounting plate; 7, guide rail; 8, rack; 9, motor; 10, reducer; 11, gear; 12, telescopic pneumatic cylinder; 13, cotton plugging cylinder; 14, cotton suction pipe; 15, sleeve; 16, hydraulic telescopic rod; 17, cotton plugging rod; 18, guide pipe; 19, connecting plate; 20, negative pressure chamber; 21, pipe interface; 22, pipe orifice. Detailed Description of the Embodiment

[0050] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0051] Please refer to Figure 1-7 , the negative pressure sponge picking mechanism of the present utility model includes the following components:

[0052] Frame 1: As the support structure of the entire mechanism, a negative pressure fan 2 is installed at the bottom to generate a negative pressure environment;

[0053] Negative pressure fan 2: It is connected to the cotton suction assembly through a pipeline system to achieve the adsorption of the sponge;

[0054] Pipeline system: It includes a conveying hard pipe 3 and a connecting hose 4, which are used to connect the negative pressure fan 2 and the cotton suction assembly to ensure the effective transmission of negative pressure. The conveying hard pipe 3 is fixedly installed on the side frame of the frame 1 through a hoop;

[0055] Cotton transfer assembly: It includes an upper mounting plate 5, a lower mounting plate 6, a motor 9, a speed reducer 10, a gear 11, a rack 8 and a guide rail 7. The guide rail 7 is installed on both sides of the top of the frame 1. The rack 8 is fixedly installed on the inner side of one side of the top of the frame 1 and is located below the guide rail 7. Both sides of the upper mounting plate 5 are slidably connected to the guide rail 7. The motor 9 and the reduction motor 9 are installed on the upper mounting plate 5. The output end of the motor 9 is adapted to the input end of the reduction motor 9. The output end of the speed reducer 10 penetrates the upper mounting plate 5, and the output end of the speed reducer 10 is engaged with the rack 8 through the gear 11;

[0056] Cotton suction lifting assembly: The cotton suction lifting assembly uses a telescopic air cylinder 12. The telescopic air cylinder 12 is fixedly installed on the upper mounting plate 5. The output end of the telescopic air cylinder 12 penetrates the upper mounting plate 5, and the lower mounting plate 6 is installed at the output end of the telescopic air cylinder 12;

[0057] Cotton suction assembly: It includes a connecting plate 19, a cotton plugging air cylinder 13, a cotton plugging rod 17 and a cotton suction pipe 14. The cotton plugging air cylinder 13 is fixedly installed on the lower mounting plate 6. The output end of the cotton plugging air cylinder 13 is connected to the connecting plate 19 through a pneumatic telescopic rod. The cotton plugging rod 17 is fixedly installed on the side of the connecting plate 19, and several cotton plugging rods 17 are provided. A guide pipe 18 is provided on the side of the lower mounting plate 6, and the guide pipe 18 is perpendicular to the cotton plugging rod 17. The cotton plugging rod 17 penetrates the guide pipe 18 and the lower mounting plate 6. The cotton suction pipe 14 is installed at the bottom of the lower mounting plate 6 and is adapted to the cotton plugging rod 17 and is located inside the cotton suction pipe 14. A negative pressure chamber 20 is provided inside the lower mounting plate 6. The cotton suction pipe 14 is communicated with the negative pressure chamber 20. One end of the connecting hose 4 is communicated with the conveying pipeline, and the other end of the connecting hose 4 penetrates the connecting plate 19 and the lower mounting plate 6 and is communicated with the negative pressure chamber 20.

[0058] In the preferred solution of the above negative pressure sponge taking mechanism:

[0059] Design of the cotton suction pipe 14:

[0060] Structure of the sleeve 15:

[0061] A sleeve 15 is provided at the bottom of the cotton suction pipe 14. The sleeve 15 is of a conical structure, and its inlet diameter is larger than the diameter of the connection between the sleeve 15 and the cotton suction pipe 14.

[0062] The conical structure design enables the cotton suction pipe 14 to more effectively form a negative pressure when sucking the sponge, making it easier to adsorb the sponge.

[0063] The larger inlet of the sleeve 15 can better cover the sponge, while the smaller connection part is conducive to forming a stronger suction force.

[0064] Design of the hydraulic telescopic rod 16:

[0065] Connection between the upper mounting plate 5 and the lower mounting plate 6:

[0066] A hydraulic telescopic rod 16 is connected between the upper mounting plate 5 and the lower mounting plate 6. The hydraulic telescopic rod 16 is located at the corners of the upper mounting plate 5 and the lower mounting plate 6.

[0067] The design of the hydraulic telescopic rod 16 enables the entire cotton suction assembly to move up and down, thus completing the action of picking up the sponge.

[0068] The arrangement at the corners can provide better support and stability, ensuring no deviation occurs during the process of picking up the sponge.

[0069] Design of the cotton suction assembly:

[0070] Symmetrical setting:

[0071] Two cotton suction assemblies are symmetrically arranged on the lower mounting plate 6.

[0072] The symmetrical setting can ensure the balance when sucking the sponge, reduce the possibility of skew, and improve the accuracy and stability of suction.

[0073] Design of the connecting plate 19:

[0074] Pipe orifice 22:

[0075] Pipe orifices 22 are symmetrically provided on the connecting plate 19, and the pipe orifices 22 are adapted to the connecting hose 4.

[0076] The design of the pipe orifices 22 enables the cotton suction pipe 14 to be connected to the negative pressure source through the connecting hose 4 to form a stable negative pressure system.

[0077] The symmetrically arranged pipe orifices 22 can ensure uniform distribution of the negative pressure and improve the effect of sucking the sponge.

[0078] Design of the lower mounting plate 6:

[0079] Pipe interface 21:

[0080] There are two sets of pipe interfaces 21 symmetrically arranged on the lower mounting plate 6, and two pipe interfaces 21 are symmetrically arranged in each set.

[0081] The pipe interface 21 is vertically arranged with the pipe opening 22, which is convenient for connecting the hose 4 to ensure the sealing and stability of the negative pressure system.

[0082] The symmetrically arranged pipe interfaces 21 can better disperse the negative pressure and improve the efficiency of sucking the sponge.

[0083] Workflow

[0084] Initial state:

[0085] The cotton sucking assembly is in the initial position, and the sleeve 15 of the cotton sucking pipe 14 is close to the sponge.

[0086] The telescopic pneumatic cylinder 12 and the hydraulic telescopic rod 16 are in the contracted state, and the distance between the upper mounting plate 5 and the lower mounting plate 6 is the smallest.

[0087] Sponge picking action:

[0088] Start the negative pressure system, and transfer the negative pressure to the cotton sucking pipe 14 through the connecting hose 4.

[0089] The sleeve 15 at the bottom of the cotton sucking pipe 14 forms a negative pressure to adsorb the sponge.

[0090] The telescopic pneumatic cylinder 12 and the hydraulic telescopic rod 16 contract, driving the lower mounting plate 6 to move upward, thereby lifting the adsorbed sponge.

[0091] Sponge placing action:

[0092] After the sponge is lifted, the moving mechanism moves the entire device to the placing position.

[0093] The hydraulic telescopic rod 16 extends, driving the lower mounting plate 6 to move downward to place the sponge at the designated position.

[0094] Turn off the negative pressure system, and use the cotton plugging cylinder 13 to drive the cotton plugging rod 17 to release the sponge.

[0095] Summary of the working principle of the negative pressure sponge picking mechanism

[0096] Frame 1 design:

[0097] Frame 1:

[0098] The frame 1 serves as the support structure of the entire mechanism, providing a solid foundation.

[0099] The negative pressure fan 2 is installed at the bottom of the frame 1 to generate a negative pressure environment to ensure the normal operation of the entire system.

[0100] On both sides of the top of the frame 1, guide rails 7 are installed to support and guide the movement of the cotton transfer component.

[0101] Design of the negative pressure fan 2:

[0102] Negative pressure fan 2:

[0103] The negative pressure fan 2 is connected to the cotton suction component through a pipeline system to achieve the adsorption of the sponge.

[0104] The negative pressure generated by the negative pressure fan 2 is transmitted to the cotton suction component through the pipeline system, enabling the cotton suction pipe 14 to adsorb the sponge.

[0105] Design of the pipeline system:

[0106] Pipeline system:

[0107] The pipeline system includes a conveying hard pipe 3 and a connecting hose 4 for connecting the negative pressure fan 2 and the cotton suction component.

[0108] The conveying hard pipe 3 is fixedly installed on the side frame of the frame 1 through a hoop to ensure the stability and reliability of the pipeline system.

[0109] One end of the connecting hose 4 is communicated with the conveying pipeline, and the other end penetrates through the connecting plate 19 and the lower mounting plate 6 to be communicated with the negative pressure chamber 20 to ensure the effective transmission of negative pressure.

[0110] Design of the cotton transfer component:

[0111] Cotton transfer component:

[0112] The cotton transfer component includes an upper mounting plate 5, a lower mounting plate 6, a motor 9, a speed reducer 10, a gear 11, a rack 8 and a guide rail 7.

[0113] The guide rail 7 is installed on both sides of the top of the frame 1, and the rack 8 is fixedly installed on the inner side of one side of the top of the frame 1 and is located below the guide rail 7.

[0114] Both sides of the upper mounting plate 5 are slidably connected to the guide rail 7 to ensure that the upper mounting plate 5 can move smoothly along the guide rail 7.

[0115] The motor 9 and the speed reducer 10 are installed on the upper mounting plate 5. The output end of the motor 9 is adapted to the input end of the speed reducer 10, and the output end of the speed reducer 10 is engaged with the rack 8 through the gear 11 to achieve the reciprocating movement of the upper mounting plate 5.

[0116] Design of the cotton suction lifting component:

[0117] Cotton suction lifting component:

[0118] The cotton suction lifting component adopts a telescopic air cylinder 12, and the telescopic air cylinder 12 is fixedly installed on the upper mounting plate 5.

[0119] The output end of the telescopic pneumatic cylinder 12 penetrates through the upper mounting plate 5, and the lower mounting plate 6 is mounted on the output end of the telescopic pneumatic cylinder 12.

[0120] The telescopic pneumatic cylinder 12 is controlled by air pressure to realize the up and down movement of the cotton suction assembly.

[0121] Design of the cotton suction assembly:

[0122] Cotton suction assembly:

[0123] The cotton suction assembly includes a connecting plate 19, a cotton plugging cylinder 13, a cotton plugging rod 17 and a cotton suction pipe 14.

[0124] The cotton plugging cylinder 13 is fixedly mounted on the lower mounting plate 6, and the output end of the cotton plugging cylinder 13 is connected to the connecting plate 19 through a pneumatic telescopic rod.

[0125] The cotton plugging rod 17 is fixedly mounted on the side of the connecting plate 19, and several are provided.

[0126] A guide pipe 18 is provided on the side of the lower mounting plate 6, and the cotton plugging rod 17 penetrates through the guide pipe 18 and the lower mounting plate 6 to ensure the smooth movement of the cotton plugging rod 17.

[0127] The cotton suction pipe 14 is mounted at the bottom of the lower mounting plate 6, and is adapted to the cotton plugging rod 17 and is located inside the cotton suction pipe 14.

[0128] A negative pressure cavity 20 is provided inside the lower mounting plate 6. The cotton suction pipe 14 is communicated with the negative pressure cavity 20. One end of the connecting hose 4 is communicated with the conveying pipeline, and the other end penetrates through the connecting plate 19 and the lower mounting plate 6 and is communicated with the negative pressure cavity 20.

[0129] Working process

[0130] Initialization:

[0131] Start the negative pressure fan 2 to generate a negative pressure environment through the pipeline system.

[0132] The upper mounting plate 5 of the cotton transfer assembly is in the initial position, and the cotton suction assembly is located above the sponge.

[0133] Adsorb the sponge:

[0134] Start the telescopic pneumatic cylinder 12 to drive the lower mounting plate 6 and the cotton suction assembly to move downward, so that the cotton suction pipe 14 contacts the sponge.

[0135] Negative pressure is transmitted to the cotton suction pipe 14 through the connecting hose 4, and the cotton suction pipe 14 adsorbs the sponge.

[0136] Lift the sponge:

[0137] The telescopic pneumatic cylinder 12 continues to work to lift the cotton suction assembly adsorbing the sponge to the required height.

[0138] Move the sponge:

[0139] The motor 9 drives the gear 11 to mesh with the rack 8 through the speed reducer 10, causing the upper mounting plate 5 to move along the guide rail 7 and moving the adsorbed sponge to the designated position.

[0140] Placing the sponge:

[0141] After reaching the designated position, the telescopic pneumatic cylinder 12 drives the lower mounting plate 6 and the cotton suction assembly to move downward, and places the sponge at the target position.

[0142] Disconnect the negative pressure and release the sponge.

[0143] The cotton suction assembly resets and prepares for the next sponge picking action.

[0144] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Negative pressure sponge extraction mechanism, characterized in that, It includes the following components: Frame (1): As the support structure of the whole mechanism, a negative pressure fan (2) is installed at the bottom, which is used to generate a negative pressure environment; Negative pressure fan (2): It is connected to the cotton suction component through a pipeline system to realize the adsorption of the sponge; Pipeline system: It includes a conveying hard pipe (3) and a connecting hose (4), which are used to connect the negative pressure fan (2) and the cotton suction component to ensure the effective transmission of negative pressure. The conveying hard pipe (3) is fixedly installed on the side frame of the frame (1) through a hoop; Cotton transfer component: It includes an upper mounting plate (5), a lower mounting plate (6), a motor (9), a reducer (10), a gear (11), a rack (8) and a guide rail (7). The guide rail (7) is installed on both sides of the top of the frame (1). The rack (8) is fixedly installed on the inner side of one side of the top of the frame (1) and is located below the guide rail (7). Both sides of the upper mounting plate (5) are slidably connected to the guide rail (7). The motor (9) and the reduction motor (9) are installed on the upper mounting plate (5). The output end of the motor (9) is adapted to the input end of the reduction motor (9). The output end of the reducer (10) penetrates the upper mounting plate (5), and the output end of the reducer (10) is engaged with the rack (8) through a gear (11); Cotton suction lifting component: The cotton suction lifting component adopts a telescopic air cylinder (12). The telescopic air cylinder (12) is fixedly installed on the upper mounting plate (5). The output end of the telescopic air cylinder (12) penetrates the upper mounting plate (5), and the lower mounting plate (6) is installed at the output end of the telescopic air cylinder (12); Cotton suction component: It includes a connecting plate (19), a cotton plugging air cylinder (13), a cotton plugging rod (17) and a cotton suction pipe (14). The cotton plugging air cylinder (13) is fixedly installed on the lower mounting plate (6). The output end of the cotton plugging air cylinder (13) is connected to the connecting plate (19) through a pneumatic telescopic rod. The cotton plugging rod (17) is fixedly installed on the side of the connecting plate (19), and several cotton plugging rods (17) are provided. A guide pipe (18) is provided on the side of the lower mounting plate (6), and the guide pipe (18) is perpendicular to the cotton plugging rod (17). The cotton plugging rod (17) penetrates the guide pipe (18) and the lower mounting plate (6). The cotton suction pipe (14) is installed at the bottom of the lower mounting plate (6) and is adapted to the cotton plugging rod (17) and is located inside the cotton suction pipe (14). A negative pressure chamber (20) is provided inside the lower mounting plate (6). The cotton suction pipe (14) is communicated with the negative pressure chamber (20). One end of the connecting hose (4) is communicated with the conveying pipeline, and the other end of the connecting hose (4) penetrates the connecting plate (19) and the lower mounting plate (6) and is communicated with the negative pressure chamber (20).

2. The negative pressure sponge taking mechanism according to claim 1, wherein, A sleeve (15) is provided at the bottom of the cotton suction pipe (14). The sleeve (15) is of a conical structure, and the inlet diameter of the sleeve (15) is larger than the diameter of the connection between the sleeve (15) and the cotton suction pipe (14).

3. The negative pressure sponge taking mechanism according to claim 2, wherein A hydraulic telescopic rod (16) is connected between the upper mounting plate (5) and the lower mounting plate (6), and the hydraulic telescopic rod (16) is located at the corner of the upper mounting plate (5) and the lower mounting plate (6).

4. The negative pressure sponge taking mechanism according to claim 3, characterized in that, Two suction cotton assemblies are symmetrically arranged on the lower mounting plate (6).

5. The negative pressure sponge taking mechanism according to claim 4, wherein, Pipe openings (22) are symmetrically arranged on the connecting plate (19), and the pipe openings (22) are adapted to the connecting hoses (4).

6. The negative pressure sponge taking mechanism according to claim 5, characterized in that, Two groups of pipe interfaces (21) are symmetrically arranged on the lower mounting plate (6), and two pipe interfaces (21) are symmetrically arranged in each group. The pipe interfaces (21) are perpendicular to the pipe openings (22).

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