Multifunctional bagging suction nozzle structure

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a multifunctional bagging suction nozzle structure which comprises two sets of negative pressure mechanisms, a moving plate and a transition plate. The negative pressure mechanism comprises a negative pressure suction cup, a hollow shaft, a shaft sleeve, a swing arm, a rotating shaft and a telescopic air supply pipe. The negative pressure suction cups are arranged on the hollow shaft, the positions of the negative pressure suction cups of the upper negative pressure mechanism and the lower negative pressure mechanism correspond to each other, each negative pressure suction cup comprises a perforated plate and a fixed base, each perforated plate comprises a mounting plate and an adsorption table arranged on the mounting plate, all holes in the perforated plates are formed in the adsorption tables, and the fixed bases are fixed to the hollow shaft. An air outlet is formed in the fixed base, and an air inlet connector is further arranged on the fixed base; a flexible pad is arranged on the porous plate; a long tooth is arranged in the middle of the end of the transition plate, and a plurality of long teeth are arranged on the two sides of the end at intervals. The sucking device can be used for sucking and opening the sleeved packaging bags, and the sucking problem of the packaging bags of different models can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a multifunctional bagging nozzle structure. Background Art

[0002] In the process of packaging sanitary products, negative pressure adsorption is generally used to grab the packaging bags and put them on the expansion component to wait for the next step. However, due to different models of packaging bags, the sizes of packaging bags are also different, and the same set of negative pressure adsorption components may be used to grab different packaging bags at the same time, resulting in the effect of grabbing the packaging bags and putting them on the expansion component cannot be guaranteed.

[0003] For example, the prior art, publication number: CN210503421U, discloses a bag opening and swinging arm device for a sanitary napkin product-specific middle bag machine, including a support plate, an upper bag suction mechanism and a lower bag suction mechanism, both of which are provided with a suction plate with suction holes, and the upper bag suction mechanism is also provided with a bag rubbing cylinder. However, the prior art still has the following technical problems:

[0004] 1. The number of suction holes is limited, which limits its application in the suction of larger packaging bags, thus reducing the versatility of the equipment;

[0005] 2. The suction plate is in direct contact with the packaging bag, which does not provide sufficient protection for the packaging bag. This causes the packaging bag to be easily scratched during the bag rubbing process, increasing production costs.

[0006] 3. There are deficiencies in the inspection of packaging bags. When there are defects such as inconsistent color joints in the packaging bags, the abnormality cannot be effectively detected, which is not conducive to eliminating defective bags;

[0007] 4. Since the prior art only supports the middle of the packaging bag, the packaging bag is easy to fall off the bag supporting plate during the bag suction process. Utility Model Content

[0008] The utility model provides a multifunctional bagging nozzle structure, which can solve the problems that the number of suction holes in the prior art is limited, resulting in poor versatility; and the suction plate directly contacts the packaging bag, which easily causes defects or even scratches on the packaging bag.

[0009] This application provides the following technical solutions:

[0010] The multifunctional bagging nozzle structure includes a negative pressure mechanism, a movable plate and a transition plate, and the negative pressure mechanism is symmetrically arranged in two groups on the movable plate;

[0011] The negative pressure mechanism includes a negative pressure suction cup, a hollow shaft, a sleeve, a swing arm, a rotating shaft and a telescopic air supply pipe. A plurality of vent holes are opened on the hollow shaft. One end of the hollow shaft is connected to the telescopic air pipe, and the other end of the hollow shaft is interference fit with the sleeve. The sleeve is rotatably connected to one end of the swing arm, and the other end of the swing arm is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the moving plate.

[0012] The negative pressure suction cup is arranged on the hollow shaft, and the positions of the negative pressure suction cups of the upper and lower groups of negative pressure mechanisms correspond to each other. The negative pressure suction cup comprises a porous plate and a fixed base. The porous plate comprises a mounting plate and two adsorption platforms arranged on the mounting plate. All the holes on the porous plate are arranged on the adsorption platforms. The mounting plate is detachably connected to the fixed base. The fixed base is fixed on the hollow shaft. An air outlet hole is opened on the fixed base. An air inlet joint is also arranged on the fixed base. A flexible pad is arranged on the porous plate.

[0013] The transition plate is arranged at the end of the conveyor belt between two groups of porous plates, and a long tooth is arranged in the middle of the end of the transition plate, and multiple long teeth are arranged at intervals on both sides of the end; both sides of the middle long tooth are slots for the adsorption platform to extend into.

[0014] Beneficial effects:

[0015] Symmetrically arranging two groups of negative pressure mechanisms can effectively ensure that the two groups of negative pressure mechanisms cooperate with each other to effectively open the packaging bag;

[0016] The negative pressure mechanism includes a hollow shaft, a sleeve, a swing arm and a rotating shaft. The rotating shaft can rotate the swing arm, so that the hollow shaft moves up and down to achieve the action of adsorbing and opening the packaging bag. The sleeve can effectively protect the hollow shaft and ensure its installation strength.

[0017] The positions of the negative pressure suction cups are corresponding to each other, which can ensure the suction effect when sucking the packaging bag;

[0018] A plurality of vent holes are provided on the hollow shaft, which can be connected with the air outlet holes of the fixed base, so that when negative pressure is introduced into the telescopic air pipe, suction can be generated in the holes on the porous plate. When negative pressure is not introduced into the telescopic air pipe but compressed air is introduced into the air inlet joint, the compressed air flows out through the holes on the porous plate and blows the packaging bag joint away from the transition plate.

[0019] By setting a flexible pad on the porous plate, the holes on the porous plate can be set in advance to the number of holes suitable for adsorbing the largest packaging bag; when adsorbing small and medium-sized packaging bags, the flexible pad is used to cover the holes that do not need to be exposed starting from the holes on the outside of the porous plate adsorption platform, and the holes in the middle are retained to ensure that the adsorption area of ​​the holes on the porous plate is maintained in the middle of packaging bags of different models; when adsorbing large packaging bags, the flexible pad is set on the side of the holes of the porous plate, all the holes on the porous plate are exposed, and the flexible pad is made to protrude from the porous plate, so that the flexible pad can form a buffer between the porous plate and the packaging bag during adsorption to prevent the porous plate from scratching the packaging bag, and the number of holes exposed on the porous plate is adjusted by using the flexible pad, so that the types of packaging bags that can be adsorbed by the porous plate are increased, thereby improving the versatility of the equipment;

[0020] The transition plate is arranged at the end of the conveyor belt between two groups of porous plates. After the conveyor belt transfers the packaging bag to the transition plate, the porous plate can adsorb the packaging bag on the transition plate. A long tooth is arranged in the middle of the end of the transition plate, and multiple long teeth are arranged at intervals on both sides of the end. The long tooth in the middle can ensure the supporting effect on the packaging bag, and the multiple long teeth arranged at intervals on both sides of the end can prevent the packaging bag from falling from the transition plate.

[0021] Furthermore, an air intake pipe is provided on the air intake joint, the air intake pipe is connected to an external air source, an electromagnetic valve is installed on the air source, and the air pipe is fixedly connected to the electromagnetic valve.

[0022] Beneficial effect: The air inlet joint is connected with an air inlet pipe, and the air inlet pipe is connected to the solenoid valve of the air source, which can help to realize automatic control of ventilation.

[0023] Furthermore, it also includes a transmission mechanism, which includes a linear motion mechanism, a rotation mechanism and a fixed plate; one end of the fixed plate is fixed to the ground, two strip holes are opened on the fixed plate, a horizontal guide rail is set on one side of the fixed plate, and a vertical guide rail and a stop block are set on the other side.

[0024] Beneficial effects: The linear motion mechanism can realize the linear motion of the suction cup, and the rotating mechanism can realize the opening and closing motion of the two symmetrically arranged suction cups; the fixed plate can be used to install various components and play a supporting role in the foundation; the transverse guide rail on one side of the fixed plate can be used to slide the movable plate onto the guide rail, and the vertical guide rail and stop block on the other side of the fixed plate, the guide rail is used to set the slide plate, and the stop block is used to limit the slide plate.

[0025] Furthermore, the linear motion mechanism includes a moving plate, a slider is provided on one side of the moving plate, the slider is slidably connected to a transverse guide rail provided on the fixed plate, an installation groove is provided on the other side of the moving plate, a synchronous belt is slidably connected in the installation groove, a gear plate is fixed on the installation groove, and the gear plate is meshed with the synchronous belt.

[0026] Beneficial effect: The synchronous belt cooperates with the gear plate, and the slider arranged on one side of the movable plate is slidably connected to the transverse guide rail, so that when the synchronous belt moves, the movable plate can be driven to move linearly on the fixed plate.

[0027] Furthermore, the rotating mechanism includes a crank slider mechanism, which includes a motor, a connecting plate, a connecting rod, and a slide plate. The motor is fixed on the fixed plate, the connecting plate is fixedly connected to the motor power output shaft, the connecting rod is rotatably connected to the protrusion set on the connecting plate, a transverse groove is opened on one side of the slide plate, a vertical groove is opened on the other side, and a protrusion is set at the lower part of the transverse groove, a connecting cylinder is set on the protrusion, and the connecting cylinder is rotatably connected to the connecting rod.

[0028] Beneficial effect: The crank slider mechanism can convert the rotation of the motor power output shaft into the linear motion of the skateboard.

[0029] Furthermore, the rotating mechanism also includes a transmission plate, a driven plate, and a conversion plate. Two driven plates are provided and are respectively fixed at the ends of the rotating shaft. Both driven plates are rotatably connected to the transmission plate, and a conversion plate is also fixedly connected to the rotating shaft of one of the driven plates. A sliding column is provided on the conversion plate, and the sliding column is slidably connected to the transverse groove of the slide plate.

[0030] Beneficial effects: The conversion plate can convert the linear motion of the skateboard into the rotational motion of the rotating shaft, and the transmission plate can transmit the rotational motion to the driven plate so that the two rotating shafts rotate at the same time, realizing the opening and closing motion of the negative pressure suction cup that is symmetrical up and down, and using the mechanical structure to ensure the consistency, coordination and stability of its motion.

[0031] Furthermore, it also includes a bag rubbing mechanism, which is arranged on a movable plate. The bag rubbing mechanism includes a fixed column, a connecting rod, a cylinder, a piston sleeve, and a telescopic plate. The fixed column is fixed on the movable plate, one end of the connecting rod is rotatably connected to the fixed column, and the other end of the connecting rod is fixed to the bottom of the cylinder, and the piston rod of the cylinder is fixedly connected to the piston sleeve; one end of the telescopic plate is fixedly connected to the shaft sleeve, and the other end of the telescopic plate is rotatably connected to the bottom of the piston sleeve.

[0032] Beneficial effect: The piston of the cylinder moves in the piston sleeve, which can make the shaft sleeve rotate, so that the negative pressure suction cup rubs the packaging bag.

[0033] Furthermore, a color mark sensor is also arranged on the conveyor belt.

[0034] Beneficial Effects: The color mark sensor can be used to identify colors other than the color of the packaging bag.

[0035] Furthermore, the two groups of porous plates of the negative pressure mechanism are symmetrically arranged up and down, and the spacing between the porous plates is 3-5 cm.

[0036] Beneficial effect: The upper and lower spacing of the porous plates is set to 3-5cm to ensure a good adsorption effect, and can meet the requirements of packaging bags of different models and sizes entering the transition plate through the conveyor belt and being located between the porous plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the negative pressure suction cup after installation of the first embodiment of the multifunctional bagging nozzle structure of the utility model;

[0038] Figure 2 This is a schematic diagram of the specific structure of the rotating mechanism of the third embodiment of the multifunctional bagging nozzle structure of the utility model;

[0039] Figure 3 This is a schematic diagram of the specific structure of a negative pressure suction cup of a first embodiment of the multifunctional bagging nozzle structure of the utility model;

[0040] Figure 4 This is a schematic diagram of the specific structure of the mounting base of the first embodiment of the multifunctional bagging nozzle structure of the utility model. DETAILED DESCRIPTION

[0041] The following is further described in detail through specific implementation methods:

[0042] The marks in the drawings of the specification include: negative pressure suction cup 1, porous plate 11, fixed base 111, air outlet 1111, air suction groove 1112, air inlet joint 112, adsorption platform 113, hollow shaft 12, sleeve 13, swing arm 14, rotating shaft 15, telescopic air supply pipe 16, transition plate 2, long teeth 21, fixed plate 3, strip holes 31, transverse guide rail 32, vertical guide rail 33, stop block 34, movable plate 4, slider 41, synchronous belt 5, gear plate 51, cylinder 6, telescopic plate 61, motor 7, connecting plate 71, connecting rod 72, slide plate 73, transverse groove 731, protrusion 732, conversion plate 8, sliding column 81, driven plate 9, transmission plate 10.

[0043] Embodiment 1

[0044] like Figure 1 , Figure 3 , Figure 4 As shown, the multifunctional bagging nozzle structure includes a negative pressure mechanism, a conveyor belt, a movable plate 4 and a transition plate 2. The transition plate 2 is fixed to the end of the conveyor belt by bolts and is located between two groups of porous plates 11. A long tooth 21 is arranged in the middle of the transition plate 2. Both sides of the middle long tooth 21 are notches for the adsorption platform to extend into. Multiple long teeth 21 are arranged at intervals on both sides of the end of the transition plate 2. In this embodiment, three long teeth 21 are arranged at intervals on both sides to support the packaging bag and prevent it from sliding off the transition plate 2. There are two groups of negative pressure mechanisms and they are symmetrically arranged along the movable plate 4; the conveyor belt is arranged on one side of the negative pressure mechanism.

[0045] The negative pressure mechanism includes a negative pressure suction cup 1, a hollow shaft 12, a sleeve 13, a swing arm 14, a rotating shaft 15 and a telescopic air supply pipe 16. One end of the hollow shaft 12 is connected to the telescopic air supply pipe 16. In this embodiment, the telescopic air supply pipe 16 is a bellows, which is externally connected to a negative pressure air source. The other end of the hollow shaft 12 is interference fit with the sleeve 13, thereby sealing one end of the hollow tube. The sleeve 13 is rotatably connected to one end of the swing arm 14, and the other end of the swing arm 14 is fixedly connected to the rotating shaft 15. The rotating shaft 15 is rotatably connected to the movable plate 4, and the rotating shaft 15 can be driven to rotate by a power source, which is specifically a cylinder in this embodiment.

[0046] The negative pressure suction cup 1 is sleeved on the hollow shaft 12, and the positions of the negative pressure suction cups 1 of the upper and lower groups of negative pressure mechanisms correspond to each other. The negative pressure suction cup 1 includes a porous plate 11 and a fixed base 111. The porous plate 11 is detachably connected to the fixed base 111 by screws. The porous plate is provided with plate holes, and the hollow shaft 12 is provided with a plurality of vent holes corresponding to the plate holes; and the upper and lower intervals of the porous plates 11 of the two groups of negative pressure mechanisms symmetrically arranged up and down are 3-5cm, so that the initial spacing of the adsorption platforms 113 of the porous plates 11 will not be too large or too small, and it is conducive to the adsorption of various types of packaging bags, and can maximize the adsorption efficiency and adsorption efficiency. Effect; three threaded holes are opened on the side of the fixed base 111, which is fixed to the hollow shaft 12 with screws and prevents the fixed base 111 from rotating on the hollow shaft 12, an air outlet 1111 and an air suction groove 1112 are opened on the fixed base 111, and an internal thread is arranged in the air outlet 1111. The fixed base 111 is also provided with an air inlet connector 112, which is threadedly connected and fixed to the air outlet 1111; a flexible pad is fixed on the porous plate 11 with strong glue or tape. In this embodiment, the flexible pad can be a foam pad or a sponge pad. In this embodiment, a foam pad is selected and the foam pad is fixed to the porous plate 11 with tape.

[0047] Here’s how to use it:

[0048] When adsorbing small and medium-sized packaging bags, a flexible pad is used to cover the holes that do not need to be exposed starting from the holes on the outside of the adsorption platform 113, retaining the holes in the middle, and ensuring that the adsorption area of ​​the holes on the porous plate 11 is maintained in the middle of packaging bags of different types; when adsorbing large packaging bags, the flexible pad is fixed to the sides of the holes of the porous plate 11 with strong glue or tape, exposing all the holes on the porous plate 11, and making the flexible pad protrude from the porous plate 11, so that the flexible pad can form a buffer between the porous plate 11 and the packaging bag during adsorption to prevent the porous plate 11 from scratching the packaging bag, and the flexible pad is used to adjust the number of holes exposed on the porous plate 11, so that the types of packaging bags that can be adsorbed by the porous plate 11 are increased, thereby improving the versatility of the equipment; and when the conveyor belt conveys the packaging bag to the transition plate 2, the long teeth 21 in the middle of the transition plate 2 can ensure the support effect on the packaging bag, and a plurality of long teeth 21 are arranged at intervals on both sides of the end to prevent the packaging bag from falling from the transition plate 2.

[0049] Embodiment 2

[0050] The difference between this embodiment and the first embodiment is that an electric actuator is provided on the negative pressure air source externally connected to the telescopic air pipe, and the telescopic air pipe is connected to the electric actuator. In this embodiment, the electric actuator model is SKD60-electric valve actuator.

[0051] An air intake pipe is provided on the air intake connector 112, and the air intake pipe is connected to an external air source. A solenoid valve is installed on the air source. The air pipe and the solenoid valve are fixedly connected. In this embodiment, the solenoid valve is a pneumatic solenoid valve with a model of SMC-5120 or 4V110-06.

[0052] A color mark sensor is also provided on the conveyor belt. In this embodiment, the model of the sensor selected is Panasonic 101-color mark sensor, and the sensor is fixed above the conveyor belt.

[0053] The method of use is as follows: when the color mark sensor on the conveyor belt detects a color different from the color of the packaging bag, it is determined that a joint has occurred. Then when the number of bags reaches the set number, the SKD valve disconnects the negative pressure and the negative pressure in the telescopic tube stops.

[0054] At the same time, the solenoid valve is opened to supply gas to the air inlet pipe, and the gas is blown out from the hole of the adsorption platform 113 to blow away the joint placed on the transition plate 2, so as to discharge the joint without stopping the machine.

[0055] Embodiment 3

[0056] like Figure 1 , Figure 2As shown, the difference between this embodiment and the second embodiment is that it also includes a transmission mechanism, which includes a linear motion mechanism, a rotation mechanism and a fixed plate 3; one end of the fixed plate 3 is fixed to the ground, and two strip holes 31 are opened on the fixed plate 3, a horizontal guide rail 32 is arranged on one side of the fixed plate 3, and a vertical guide rail 33 and a stop block 34 are arranged on the other side.

[0057] The linear motion mechanism includes a moving plate 4, a slider 41 is provided on one side of the moving plate 4, the slider 41 is slidably connected to the transverse guide rail 32 provided on the fixed plate 3, and a mounting groove is provided on the other side of the moving plate 4, a synchronous belt 5 is slidably connected in the mounting groove, and a gear plate 51 is fixed on the mounting groove, and the gear plate 51 is meshed with the synchronous belt 5.

[0058] The rotating mechanism includes a crank slider 41 mechanism, which includes a motor 7, a connecting plate 71, a connecting rod 72, and a slide plate 73. The motor 7 is fixed on the fixed plate 3, the connecting plate 71 is fixedly connected to the power output shaft of the motor 7, the connecting rod 72 is rotatably connected to the protrusion set on the connecting plate 71, the slide plate 73 has a transverse groove 731 on one side and a vertical groove on the other side, and a protrusion 732 is set at the lower part of the transverse groove 731, and a connecting cylinder is set on the protrusion 732, and the connecting cylinder is rotatably connected to the connecting rod 72.

[0059] The rotating mechanism also includes a transmission plate 10, a driven plate 9, and a conversion plate 8. Two driven plates 9 are provided and are respectively fixed at the ends of the rotating shaft 15. The two driven plates 9 are both rotatably connected to the transmission plate 10, and the conversion plate 8 is also fixedly connected to the rotating shaft 15 on which one of the driven plates 9 is provided. A sliding column 81 is provided on the conversion plate 8, and the sliding column 81 is slidably connected to the transverse groove 731 of the slide plate 73.

[0060] It also includes a bag rubbing mechanism, which is arranged on the moving plate 4. The bag rubbing mechanism includes a fixed column, a connecting rod, a cylinder 6, a piston sleeve, and a telescopic plate 61. The fixed column is fixed on the moving plate 4; the fixed column and the cylinder 6 are connected by a connecting rod, and one end of the connecting rod is rotatably connected to the fixed column, and the other end of the connecting rod is fixed to the bottom of the cylinder 6; a piston sleeve is threadedly fixed on the piston rod of the cylinder 6, and a connecting ear hole is provided at the free end of the piston sleeve, and the telescopic plate 61 is rotatably connected in the connecting ear hole through a pin; when the swing arm 14 swings, since both ends of the cylinder 6 are movably connected, the cylinder 6 will adjust with its swing, and will not affect the normal operation of the cylinder 6. The telescopic plate 61 is set at an angle, and the telescopic plate 61 is installed 30° or 45° counterclockwise from the vertical direction. The lower end of the telescopic plate 61 is fixedly connected to the sleeve 13. Therefore, when the piston rod of the cylinder 6 is extended or retracted, it can push the high end of the telescopic plate 61 to rotate counterclockwise and then return clockwise, thereby driving the sleeve 13 at the lower end of the telescopic plate 61 to rotate, and the negative pressure suction cup 1 follows the slight rotation to realize the bag rubbing action.

[0061] Here’s how to use it:

[0062] Bag suction, when the packaging bag is conveyed to the transition plate 2 by the conveyor belt, the SKD valve ventilation generates negative pressure, and negative pressure is also generated in the hole of the adsorption platform 113, and the motor 7 in the rotating mechanism is started, and the power output shaft of the motor 7 rotates a certain angle and then stands by, driving the crank slider mechanism to convert the rotation into the vertical movement of the slide plate 73, and the conversion plate 8 slidably connected in the horizontal groove 731 of the slide plate 73 converts the horizontal movement of the slide plate 73 into rotation, so that the rotating shaft 15 rotates, and at the same time drives the driven plate 9 fixed on the rotating shaft 15 to rotate, and the driven plate 9 transmits the rotational motion to another driven plate 9 through the transmission plate 10, so that the other rotating shaft 15 rotates in the opposite direction at the same time, so that the adsorption platform 113 completes the closing action, and the hole on the adsorption platform 113 adsorbs the packaging bag.

[0063] Rub the bag. The cylinder 6 in the bag rubbing mechanism is actuated to extend the piston rod of the cylinder 6, driving the telescopic plate 61 to rotate counterclockwise. The telescopic plate 61 causes the sleeve 13 to rotate, thereby driving the hollow shaft 12 to rotate, causing the negative pressure suction cup 1 fixed on the hollow shaft 12 to rotate. The adsorption platform 113 on the negative pressure suction cup 1 produces a rubbing action on the adsorbed packaging bag, so that after the packaging bag is rubbed open to a certain angle, the motor 7 is started, and the power output shaft of the motor 7 rotates in the opposite direction to a certain angle, so that the packaging bag adsorbed on the adsorption platform 113 is opened.

[0064] When delivering the bag, if the color mark sensor detects the existence of other colors other than the color of the packaging bag, it is determined that there is a joint. After the joint is adsorbed, the synchronous belt 5 is started to move the movable plate 4 in a straight line. During the bag delivery process, the SKD valve disconnects the negative pressure, and the solenoid valve connected to the air pipe is opened to allow gas to blow the joint off the adsorption platform 113 and make it fall off; if the color mark sensor does not detect the existence of other colors other than the color of the packaging bag, after the adsorption platform 113 adsorbs the joint, the synchronous belt 5 is started to move the movable plate 4 in a straight line. After the packaging bag is normally delivered to the designated location, the SKD valve is started to disconnect the negative pressure, and the adsorption platform 113 returns to the initial point.

[0065] Repeating the above steps can achieve continuous grabbing of packaging bags.

[0066] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A multifunctional bagging nozzle structure, including a negative pressure mechanism, a conveyor belt, a moving plate, and a transition plate, characterized in that: The negative pressure mechanism is symmetrically arranged in two groups on the movable plate; the conveyor belt is arranged on one side of the negative pressure mechanism; The negative pressure mechanism includes a negative pressure suction cup, a hollow shaft, a sleeve, a swing arm, a rotating shaft and a telescopic air supply pipe. The hollow shaft is provided with a plurality of vent holes. One end of the hollow shaft is connected to the telescopic air pipe, and the other end of the hollow shaft is interference fit with the sleeve. The sleeve is rotatably connected to one end of the swing arm, and the other end of the swing arm is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the movable plate. The negative pressure suction cup is arranged on the hollow shaft, and the positions of the negative pressure suction cups of the upper and lower groups of negative pressure mechanisms correspond to each other. The negative pressure suction cup comprises a porous plate and a fixed base. The porous plate comprises a mounting plate and an adsorption platform arranged on the mounting plate. All the holes on the porous plate are arranged on the adsorption platform. The mounting plate is detachably connected to the fixed base. The fixed base is fixed on the hollow shaft. An air outlet hole is opened on the fixed base. An air inlet joint is also arranged on the fixed base. A flexible pad is arranged on the porous plate. The transition plate is arranged at the end of the conveyor belt between two groups of porous plates, and a long tooth is arranged in the middle of the end of the transition plate, and multiple long teeth are arranged at intervals on both sides of the end; both sides of the middle long tooth are slots for the adsorption platform to extend into.

2. The multifunctional bagging nozzle structure according to claim 1 is characterized in that: The air intake joint is provided with an air intake pipe, the air intake pipe is connected to an external air source, a solenoid valve is installed on the air source, and the air intake pipe is fixedly connected to the solenoid valve.

3. The multifunctional bagging nozzle structure according to claim 2 is characterized in that: It also includes a transmission mechanism, which includes a linear motion mechanism, a rotation mechanism and a fixed plate; one end of the fixed plate is fixed to the ground, two strip holes are opened on the fixed plate, a horizontal guide rail is set on one side of the fixed plate, and a vertical guide rail and a stop block are set on the other side.

4. The multifunctional bagging nozzle structure according to claim 3 is characterized in that: The linear motion mechanism includes the moving plate, a slider is provided on one side of the moving plate, the slider is slidably connected to the transverse guide rail provided on the fixed plate, a mounting groove is provided on the other side of the moving plate, a synchronous belt is slidably connected in the mounting groove, a gear plate is fixed on the mounting groove, and the gear plate is meshed with the synchronous belt.

5. The multifunctional bagging nozzle structure according to claim 4 is characterized in that: The rotating mechanism includes a crank slider mechanism, which includes a motor, a connecting plate, a connecting rod and a slide plate. The motor is fixed on a fixed plate, the connecting plate is fixedly connected to the motor power output shaft, the connecting rod is rotatably connected to a protrusion arranged on the connecting plate, one side of the slide plate is provided with a transverse groove, the other side is provided with a vertical groove, a protrusion is arranged at the lower part of the transverse groove, a connecting cylinder is arranged on the protrusion, and the connecting cylinder is rotatably connected to the connecting rod.

6. The multifunctional bagging nozzle structure according to claim 5, characterized in that: The rotating mechanism also includes a transmission plate, a driven plate and a conversion plate. Two driven plates are provided and are respectively fixed at the ends of the rotating shaft. Both driven plates are rotatably connected to the transmission plate, and a conversion plate is fixedly connected to the rotating shaft of one of the driven plates. A sliding column is provided on the conversion plate, and the sliding column is slidably connected to the transverse groove of the slide plate.

7. The multifunctional bagging nozzle structure according to claim 6, characterized in that: It also includes a bag rubbing mechanism, which is arranged on a movable plate. The bag rubbing mechanism includes a fixed column, a connecting rod, a cylinder, a piston sleeve and a telescopic plate. The fixed column is fixed on the movable plate, one end of the connecting rod is rotatably connected to the fixed column, the other end of the connecting rod is fixed to the bottom of the cylinder, the piston rod of the cylinder is fixedly connected to the piston sleeve; one end of the telescopic plate is fixedly connected to the shaft sleeve, and the other end of the telescopic plate is rotatably connected to the bottom of the piston sleeve.

8. The multifunctional bagging nozzle structure according to claim 7, characterized in that: A color mark sensor is also arranged on the conveyor belt.

9. The multifunctional bagging nozzle structure according to claim 8, characterized in that: The two groups of porous plates of the negative pressure mechanism are symmetrically arranged up and down, and the spacing between the porous plates is 3-5 cm.

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