Three-cylinder circulating bagging device

Abstract

The invention discloses a three-barrel circulating bagging device, and relates to the technical field of bagging machine equipment.The three-barrel circulating bagging device comprises a hopper, a rack, a filler stirring cage, a bag opening device, an auxiliary bagging barrel and a circulating bagging barrel, the hopper is fixedly installed on the outer side of the rack, and the bottom of the hopper is in threaded connection with the filler stirring cage; an auxiliary bagging barrel is further arranged on the inner side, close to the hopper, of the machine frame, a hook closing check block is arranged at the bottom, close to the auxiliary bagging barrel, of the machine frame, an outer machine frame is fixedly connected to the outer side of the machine frame, a bag opening device is slidably connected to the outer machine frame, and a hook opening check block is arranged on the inner side, close to the circulating bagging barrel, of the outer machine frame. A walking track is further arranged in the machine frame and connected with the circulating bagging cylinder in a sliding mode. According to the three-cylinder circulating bagging device, the waiting time is eliminated, and the overall bagging efficiency is greatly improved through circulating reciprocating work of the three-cylinder circulating bagging device.

Description

Technical Field

[0001] The present invention relates to the technical field of bagging machine equipment, and specifically to a three-cylinder circulating bag-sleeving device. Background Art

[0002] This structure starts from the main process point that currently causes low bag-sleeving efficiency. Currently, limited by the stiffness of the core shaft material inside the auger, when the auger blades inside the auger rotate at high speed, the stiffness is insufficient and a phenomenon of rubbing against the inner wall will occur. The longer the auger, the greater the deflection of the core shaft of the auger blades inside the auger, and the more likely it is to have the phenomenon of rubbing against the inner wall. Therefore, currently, the length of the auger is generally not longer than 380 mm, which causes the problem that the bag-supporting claws cannot disengage from the auger after putting the mushroom bag on in the current bag-supporting and bag-sleeving method. One can only wait for the mushroom bag to retreat and disengage from the bag-supporting claws after the filling substrate is filled before the bag-supporting claws can disengage from the auger to perform the next step of work, and this waiting time will affect the overall bag-sleeving efficiency.

[0003] Currently, the bag-sleeving mechanisms of auricularia auricula bagging machines have two-way operations in the Z-axis direction and the X-axis direction. For example, the Chinese patent with the publication number: CN209275004U discloses a bag-sleeving device for an edible mushroom bagging machine, and the Chinese patent with the publication number: CN222030791U discloses a bag-supplying device for an edible mushroom bagging machine. There are also two-way operations in the Z-axis direction and the Y-axis direction. For example, the Chinese patent with the publication number: CN221104326U discloses a full-automatic auricularia auricula bag-sleeving device with a rocker-arm movement. The above three methods all have the problem that the bag-supporting mechanism holds the mushroom bag and waits for the filling mechanism to feed materials. Therefore, a three-cylinder circulating bag-sleeving device is needed to solve the above technical problems. Summary of the Invention

[0004] In view of this, the present invention provides a three-cylinder circulating bag-sleeving device. Different from traditional bagging machines, the present invention eliminates the waiting time and greatly improves the overall bag-sleeving efficiency by the circulating bag-sleeving cylinder working in a cycle.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A three-cylinder circulating bag-sleeving device, comprising: a hopper, a frame, a filling auger, a bag-supporting device, an auxiliary bag-sleeving cylinder, and a circulating bag-sleeving cylinder. The hopper is fixedly installed on the outside of the frame. The bottom of the hopper is threadedly connected with the filling auger. An auxiliary bag-sleeving cylinder is further provided inside the frame near the hopper. A hook-blocking block is provided at the bottom of the frame near the auxiliary bag-sleeving cylinder. The outside of the frame is fixedly connected with an external frame. A bag-supporting device is slidably connected to the external frame. An opening-hook block is provided inside the external frame near the circulating bag-sleeving cylinder. A traveling track is further provided inside the frame, and the traveling track is slidably connected with the circulating bag-sleeving cylinder.

[0007] Further, the auxiliary bag - sleeving cylinder includes an octagonal bag - supporting mechanism and an air - venting cylinder, and the octagonal bag - supporting mechanism is slidably connected to the air - venting cylinder.

[0008] Further, the octagonal bag - supporting mechanism includes a rotary base, a sliding sleeve, a return spring, and bag - supporting pieces. The air - venting cylinder includes a threaded air - pipe and an empty barrel. One end of the threaded air - pipe is connected to an air pump, and the other end sequentially passes through the sliding sleeve and the return spring and is slidably connected to the empty barrel. The bag - supporting pieces are hinged to the sliding sleeve, and the bag - supporting pieces are hinged to the rotary base.

[0009] Further, the circulating bag - sleeving cylinder includes a slider, a frame, a traveling motor, a rotation - controlling motor, a base, a bag - forming structure, and a barrel - combining track. The slider is slidably connected to the traveling track. The output end of the traveling motor is electrically connected to the input end of the slider. A frame is fixedly connected to the slider. The traveling motor, the rotation - controlling motor, and the barrel - combining track are all fixedly connected to the frame. The output end of the rotation - controlling motor is rotationally connected to the base through a rotating shaft. Three bag - forming structures are circumferentially fixed to the base. A notch is formed on the barrel - combining track, and the barrel - combining track is slidably connected to the bag - forming structure.

[0010] Further, the bag - forming structure includes a bag - hooking mechanism, a spring - toggling mechanism, and a clamping barrel. A spring - toggling mechanism is arranged on the outer side of the clamping barrel, and the spring - toggling mechanism is fixedly connected to the bag - hooking mechanism.

[0011] Further, the bag - hooking mechanism includes bag - hooking pieces, a bag - hooking holder, a connecting piece, and a circular - ring holder. The bag - hooking holder is circular - ring - shaped. A plurality of bag - hooking pieces are circumferentially distributed inside the bag - hooking holder. The plurality of bag - hooking pieces are hinged to the bag - hooking holder and the connecting piece. The connecting piece is hinged to the circular - ring holder. The bag - hooking holder and the circular - ring holder are both fixedly connected to the spring - toggling mechanism.

[0012] Further, the spring - toggling mechanism includes a sliding base, a retaining pull - spring, a touch rod, a sliding bearing seat, and a sliding connecting rod. A sliding bearing seat is fixedly connected to the outer side of the clamping barrel. A sliding connecting rod is slidably connected to the sliding bearing seat. The sliding connecting rod is fixedly connected to the sliding base and the circular - ring holder. A sliding groove is formed on the sliding base, and a rotating shaft is arranged in the sliding groove. The rotating shaft is fixedly connected to the clamping barrel. The touch rod is hinged to the rotating shaft. The two ends of the retaining pull - spring are respectively fixed to the sliding base and the touch rod.

[0013] Further, the clamping barrel includes a movable half - barrel, a fixed half - barrel, a barrel - combining bearing, a torsion spring, and a hinge. The movable half - barrel and the fixed half - barrel are hinged through a hinge. The barrel - combining bearing and the torsion spring are both arranged on the movable half - barrel. The spring - toggling mechanism is arranged on the fixed half - barrel. The barrel - combining bearing is slidably connected to the barrel - combining track.

[0014] Furthermore, the opening hook stopper and the closing hook stopper abut against the touch rod.

[0015] Furthermore, the circulating bagging cylinder corresponds to the filler stirring cage and the auxiliary bagging cylinder.

[0016] The beneficial effects of the present invention are:

[0017] The present invention reduces the waiting time during bagging and increases the overall bagging efficiency through the circulating bagging cylinder. The auxiliary bagging cylinder can ensure that the mushroom bag opens into a regular octagon and positions the mushroom bag, thereby ensuring the accuracy of bag removal and preventing the mushroom bag from everting during the withdrawal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the overall device of the present invention;

[0020] Figure 2 Schematic diagram of the auxiliary bagging cylinder;

[0021] Figure 3 Schematic diagram of the octagonal bag support mechanism;

[0022] Figure 4 Schematic diagram of the breather;

[0023] Figure 5 Schematic diagram of a circulating bagging cylinder;

[0024] Figure 6 Rear view of the recirculating bagging cylinder;

[0025] Figure 7 Schematic diagram of the packaging mechanism;

[0026] Figure 8 An enlarged schematic diagram of the bag hook mechanism;

[0027] Figure 9 Schematic diagram of the spring toggle mechanism;

[0028] Figure 10 Schematic diagram of the expansion and closing tube;

[0029] Among them, in the figure:

[0030] 1 - Hopper; 2 - Frame; 3 - Filler auger; 4 - Bag supporting device; 5 - Auxiliary bag - sleeving cylinder; 6 - Circulating bag - sleeving cylinder; 7 - External frame; 8 - Octagonal bag - supporting mechanism; 9 - Ventilation cylinder; 10 - Rotary base; 11 - Sliding sleeve; 12 - Return spring; 13 - Bag - supporting piece; 14 - Threaded ventilation pipe; 15 - Empty barrel; 16 - Traveling track; 17 - Traveling motor; 18 - Rotary position - control motor; 19 - Base; 20 - Bag - hooking mechanism; 21 - Opening and closing holding cylinder; 22 - Bag - hooking piece; 23 - Bag - hooking holder; 24 - Connecting piece; 25 - Sliding connecting rod; 26 - Sliding base; 27 - Holding tension spring; 28 - Touching rod; 29 - Unhooking stop block; 30 - Hooking stop block; 31 - Cylinder - closing bearing; 32 - Torsion spring; 33 - Hinge; 34 - Sliding bearing seat; 35 - Cylinder - closing track; 36 - Ring frame. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] Please refer to the attached Figures 1-10 , the present invention provides a three - cylinder circulating bag - sleeving device, including: a hopper 1, a frame 2, a filler auger 3, a bag - supporting device 4, an auxiliary bag - sleeving cylinder 5 and a circulating bag - sleeving cylinder 6. The hopper 1 is fixedly installed on the outside of the frame 2. The bottom of the hopper 1 is threadedly connected to the filler auger 3. The auxiliary bag - sleeving cylinder 5 is also arranged inside the frame 2 near the hopper 1. The hooking stop block 30 is arranged at the bottom of the frame 2 near the auxiliary bag - sleeving cylinder 5. The external frame 7 is fixedly connected to the outside of the frame 2. The bag - supporting device 4 is slidably connected to the external frame 7. The unhooking stop block 29 is arranged inside the external frame 7 near the circulating bag - sleeving cylinder 6. The traveling track 16 is also arranged inside the frame 2. The traveling track 16 is slidably connected to the circulating bag - sleeving cylinder 6.

[0033] Since the position of the auxiliary bag - sleeving cylinder 5 is not at the position of the filling bin, when arranging the machine, the length of the auxiliary bag - sleeving cylinder 5 can be not restricted, so that after the bag - supporting device 4 has enough space to sleeve the fungus bag on the auxiliary bag - sleeving cylinder 5, it can continue to move forward to break away from the fungus bag and continue the next step of bag - taking.

[0034] Preferably, the auxiliary bag - sleeving cylinder 5 includes an octagonal bag - supporting mechanism 8 and a ventilation cylinder 9. The octagonal bag - supporting mechanism 8 is slidably connected to the ventilation cylinder 9.

[0035] Preferably, the octagonal bag-supporting mechanism 8 includes a rotary base 10, a sliding sleeve 11, a return spring 12 and bag-supporting pieces 13. The air vent cylinder 9 includes a threaded air pipe 14 and an empty barrel 15. One end of the threaded air pipe 14 is connected to an air pump, and the other end sequentially passes through the sliding sleeve 11 and the return spring 12 and is slidably connected to the empty barrel 15. The bag-supporting pieces 13 are hinged to the sliding sleeve 11, and the bag-supporting pieces 13 are hinged to the rotary base 10.

[0036] The octagonal bag-supporting mechanism 8 can ensure that no matter which one or several of the eight bag-supporting pieces 13 are stressed and rotate inwards or outwards, the remaining bag-supporting pieces 13 will rotate inwards or outwards synchronously. In this way, when the circulating bag-sleeving cylinder 6 sleevs the bacteria bag on the octagonal bag-supporting mechanism 8, the opening of the bacteria bag forms a regular octagon, and the center of the octagon is located at the exact center of the auxiliary bag-sleeving cylinder 5, positioning the bacteria bag to ensure the accuracy of bag taking.

[0037] One end of the threaded air pipe 14 is connected to a throttle joint to lead to high-pressure air, and the on-off of the high-pressure air is controlled by an electromagnetic pneumatic valve, and the throttle valve controls the air volume. During operation, the bag-supporting claws of the bag-supporting device 4 support the bacteria bag and move from the bottom end of the auxiliary bag-sleeving cylinder 5 towards the octagonal bag-supporting mechanism 8. The bag-supporting claws of the bag-supporting device 4 touch and squeeze six of the eight bag-supporting pieces 13 on the left and right sides. The eight bag-supporting pieces 13 rotate inwards simultaneously and push against the sliding sleeve 11 to compress the return spring 12 and move backward. The bag-supporting claws of the bag-supporting device 4 continue to move forward with the bacteria bag until the bottom of the bacteria bag can hold the bottom end of the auxiliary bag-sleeving cylinder 5. At this time, the bacteria bag stops moving forward, while the bag-supporting claws of the bag-supporting device 4 continue to move forward. During the forward movement, the bag-supporting claws of the bag-supporting device 4 disengage from the bacteria bag until the bag-supporting claws of the bag-supporting device 4 disengage from the auxiliary bag-sleeving cylinder 5. At this time, the bag-supporting pieces 13 are released, and the sliding sleeve 11 moves forward under the action of the return spring 12, thereby driving the eight bag-supporting pieces 13 to rotate outwards simultaneously to support the bacteria bag. The bag-supporting device 4 retracts, completing the bag-sleeving process of the bag-supporting device 4 on the auxiliary bag-sleeving cylinder 5.

[0038] When the circulating bag-sleeving cylinder 6 comes to take the bag, the 8 bag-hooking pieces 22 on it are sequentially located on the same side of the eight bag-supporting pieces 13. After hooking the bacteria bag, it moves backward. At the same time, the air vent solenoid valve is opened, so that air rushes out from the bottom end of the auxiliary bag-sleeving cylinder 5, filling the bacteria bag with air, separating the bacteria bag from the air vent cylinder 9 of the auxiliary bag-sleeving cylinder 5 with air, preventing adhesion between the bacteria bag and the auxiliary bag-sleeving cylinder 5 due to static electricity or moisture, etc., and preventing the bacteria bag from turning outwards during the process of withdrawing from the auxiliary bag-sleeving cylinder 5. After the circulating bag-sleeving cylinder 6 completely withdraws from the auxiliary bag-sleeving cylinder 5, the solenoid valve cuts off the air supply, completing the bag-taking process of the circulating bag-sleeving cylinder 6 for the auxiliary bag-sleeving cylinder 5.

[0039] Preferably, the loop bagging cylinder 6 includes a slider, a frame, a traveling motor 17, a rotation control motor 18, a base 19, a bag forming structure, and a cylinder combining track 35. The slider is slidably connected to the traveling track 16. The output end of the traveling motor 17 is electrically connected to the input end of the slider. A frame is fixedly connected to the slider. The traveling motor 17, the rotation control motor 18, and the cylinder combining track 35 are all fixedly connected to the frame. The output end of the rotation control motor 18 is rotatably connected to the base 19 through a rotating shaft. The three bag forming structures are circumferentially fixed to the base 19. A notch is formed on the cylinder combining track 35, and the cylinder combining track 35 is slidably connected to the bag forming structure.

[0040] Preferably, the bag forming structure includes a bag hooking mechanism 20, a spring toggling mechanism, and a clamping cylinder 21. The spring toggling mechanism is arranged on the outer side of the clamping cylinder 21, and the spring toggling mechanism is fixedly connected to the bag hooking mechanism 20.

[0041] Each clamping cylinder 21 and a bag hooking mechanism 20 are in the same working station, and cooperate to complete the processes of bag taking, bagging, filling, and bag dropping of a mushroom bag. The three bag forming structures are respectively aligned with the auxiliary bagging cylinder 5, the filling auger 3, and the bag dropping position in sequence. When the three sets are rotated clockwise in the right view, they just complete the process cycle of bag taking → filling → bag dropping in sequence, and then continue to circulate.

[0042] Preferably, the bag hooking mechanism 20 includes bag hooking pieces 22, a bag hooking holder 23, a connecting piece 24, and a circular ring holder 36. The bag hooking holder 23 is circular. A plurality of bag hooking pieces 22 are circumferentially distributed inside the bag hooking holder 23. The plurality of bag hooking pieces 22 are hinged to the bag hooking holder 23 and the connecting piece 24. The connecting piece 24 is hinged to the circular ring holder 36. The bag hooking holder 23 and the circular ring holder 36 are both fixedly connected to the spring toggling mechanism.

[0043] Preferably, the spring toggling machine includes a sliding base 26, a retaining spring 27, a touch rod 28, a sliding bearing seat 34, and a sliding connecting rod 25. A sliding bearing seat 34 is fixedly connected to the outer side of the clamping cylinder 21. A sliding connecting rod 25 is slidably connected to the sliding bearing seat 34. The sliding connecting rod 25 is fixedly connected to the sliding base 26 and the circular ring holder 36. A sliding groove is formed on the sliding base 26, and a rotating shaft is arranged in the sliding groove. The rotating shaft is fixedly connected to the clamping cylinder 21. The touch rod 28 is hinged to the rotating shaft. The two ends of the retaining spring 27 are respectively fixed to the sliding base 26 and the touch rod 28.

[0044] When the circulating bag sleeve tube 6 is working, the base 19, the bag hooking mechanism 20 and the opening and closing holding tube 21 all need to rotate to a certain extent, and the three bag hooking mechanisms 20 thereon need to be controlled separately, and the cylinder and the motor cannot achieve the required functions. Therefore, the bag hooking piece 22 is used to ensure that the bag is always hooked and not loosened through the force provided by a spring toggle mechanism, and the touch rod 28 on the spring toggle mechanism will touch different blocks (open hook block 29 and closing hook block 30) in each reciprocating motion of the circulating bag sleeve tube 6, so that each bag hooking mechanism 20 can maintain a corresponding state (bag hooking state or opening state) at different positions.

[0045] Preferably, the opening and closing cylinder 21 includes a movable half-barrel, a fixed half-barrel, a closing cylinder bearing 31, a torsion spring 32 and a hinge 33. The movable half-barrel and the fixed half-barrel are hinged by the hinge 33. The closing cylinder bearing 31 and the torsion spring 32 are both arranged on the movable half-barrel. The spring toggle mechanism is arranged on the fixed half-barrel. The closing cylinder bearing 31 is slidably connected to the closing cylinder track 35.

[0046] Since the torsion spring extends out from two pressure points, one is fixed on the fixed half-cylinder and the other is hung on the movable half-cylinder, a continuous opening force can be applied to the movable half-cylinder.

[0047] When the circulating bagging cylinder 6 rotates, the closing cylinder bearing 31 moves in the closing cylinder track 35 and presses the movable half cylinder together. There is always one of the three bagging structures in the bag dropping position. At this position, since there is a gap in the closing cylinder track 35, the closing cylinder bearing 31 will be free from the restraint, and the movable half cylinder will open under the action of the torsion spring 32. When it rotates again, the closing cylinder bearing 31 will re-enter the closing cylinder track 35 to close the movable half cylinder.

[0048] Preferably, the opening hook stopper 29 and the closing hook stopper 30 abut against the touch rod 28 .

[0049] When the circulating bag sleeve tube 6 moves forward from the bag dropping position to the bag hooking position, the touch rod 28 will collide with the hooking block 30, and the touch rod 28 will be skewed first, and under the action of the tension of the tension spring 27, it will drive the sliding base 26 to deviate in the direction of the base 19, and then drive the sliding connecting rod 25 to move in the direction of the base 19, and finally cause the connecting piece 24 on the circular ring frame 36 to pull the eight bag hooking pieces 22, which will rotate inward synchronously on the bag hooking retaining frame 23, so that the bag hooking pieces 22 are in the bag hooking state to hook the fungus bag.

[0050] And under the action of the tension of the tension spring 27, the eight bag hook pieces 22 always exert an opening force on the mushroom bag, thereby holding the mushroom bag.

[0051] When the circulating bagging tube 6 moves forward from the filling position to the bag dropping position, the touch rod 28 will collide with the hook opening block 29, and the touch rod 28 will be skewed first, and under the action of the tension of the tension spring 27, it will drive the sliding base 26 to deviate in the opposite direction of the base 19, and then drive the sliding connecting rod 25 to move in the opposite direction of the base 19, and finally cause the connecting piece 24 on the circular ring frame 36 to pull the eight bag hook pieces 22, which rotate outward synchronously on the bag hook retaining frame 23, so that the bag hook pieces 22 are in an open state, and the fungus bag is released.

[0052] When the circulating bagging tube 6 is driven by the rotary motor to rotate, the touch rod 28 will also hit the hook block 29. Because it is a one-way hinge form and can rotate from back to front, the spring toggle mechanism will not be triggered here.

[0053] Preferably, the circulating bagging cylinder 6 corresponds to the filling stirring cage 3 and the auxiliary bagging cylinder 5 .

[0054] The specific method of use of the present invention is:

[0055] First, the bag-supporting device 4 puts the fungus bag on the auxiliary bagging tube 5, and the octagonal bag-supporting mechanism 8 on the auxiliary bagging tube 5 will support the fungus bag to keep the fungus bag open and fixed on the auxiliary bagging tube 5. Secondly, after the fungus bag is put on the auxiliary bagging tube 5, the circulating bagging tube 6 takes the bag from the auxiliary bagging tube 5. Once again, after the bag is taken out, the circulating bagging tube 6 rotates to prepare for filling. After the filling is completed, the circulating bagging tube 6 rotates again to prepare for bag dropping. After the bag dropping is completed, the circulating bagging tube 6 rotates again, and the cycle is repeated in this way. Each bagging tube completes the three processes of bag taking, filling and bag dropping in sequence, and then the bag taking, filling and bag dropping cycle is continued to complete the bagging work of the bagging machine.

[0056] The specific operation of the bag-holding device 4 on the auxiliary bag-holding tube 5 is as follows: the bag-holding claws of the bag-holding device 4 hold the mushroom bag and move it from the bottom end of the auxiliary bag-holding tube 5 to the octagonal bag-holding mechanism 8, and the bag-holding claws of the bag-holding device 4 touch and squeeze the six pieces on the left and right sides of the eight bag-holding pieces 13. The eight bag-holding pieces 13 rotate inward at the same time, press the sliding sleeve 11 to compress the return spring 12 and move backward, and the bag-holding claws of the bag-holding device 4 continue to carry the mushroom bag forward until the bottom of the mushroom bag can hold the auxiliary bag-holding tube 5. The bottom of the bag stops moving forward, while the bag-supporting claws of the bag-supporting device 4 continue to move forward. During the moving process, the bag-supporting claws of the bag-supporting device 4 are separated from the bag, until the bag-supporting claws of the bag-supporting device 4 are separated from the auxiliary bag-covering tube 5. At this time, the bag-supporting pieces 13 are released, and the sliding sleeve 11 moves forward under the action of the reset spring 12, thereby driving the eight bag-supporting pieces 13 to rotate outward at the same time to support the bag, and the bag-supporting device 4 is retracted, completing the bag-covering process of the bag-supporting device 4 on the auxiliary bag-covering tube 5.

[0057] The specific operations for the loop bagging cylinder 6 to complete the three processes of bag taking, filling, and bag dropping are as follows: After the fungus bag is sleeved on the auxiliary bagging cylinder 5, the loop bagging cylinder 6 advances from the bag dropping position to the position of the filling hook bag. The first bag forming structure among the three bagging cylinders on the loop bagging cylinder 6 is sleeved on the auxiliary bagging cylinder 5. The touch rod 28 on the first bag forming structure will collide with the combined hook stopper 30. The touch rod 28 will first tilt, and under the action of maintaining the tension of the tension spring 27, it will drive the sliding base 26 to shift towards the base 19, and then drive the sliding connecting rod 25 to move towards the base 19. Eventually, the connecting piece 24 on the ring frame 36 will pull the eight bag hook pieces 22 to rotate synchronously inward on the bag hook holder 23, so that the bag hook pieces 22 are in the bag hooking state to hook the fungus bag, and the bag hook pieces 22 will maintain the bag hooking state. At the same time, the second bag forming structure on the loop bagging cylinder 6 fills the material on the filling auger 3. The third bag forming structure on the loop bagging cylinder 6 opens in two halves under the action of the torsion spring for bag dropping. When the filling is completed, the loop bagging cylinder 6 starts to retreat under the reaction force of the traveling motor 17. At this time, driven by the traveling motor 17, the bag hook pieces 22 of the first bag forming structure will hook the fungus bag on the auxiliary bagging cylinder 5 and start to retreat to the bag dropping position. The air pipe on the auxiliary bagging cylinder 5 stops supplying air. At the same time, the threaded vent pipe 14 connected to the auxiliary bagging cylinder 5 starts to supply air, so that the inside of the fungus bag being taken out is filled with gas. When the first bag forming structure retreats to the bag dropping position, the touch rod 28 on the second bag forming structure will collide with the unhooking stopper 29. The touch rod 28 will first tilt, and under the action of maintaining the tension of the tension spring 27, it will drive the sliding base 26 to shift in the opposite direction of the base 19, and then drive the sliding connecting rod 25 to move in the opposite direction of the base 19. Eventually, the connecting piece 24 on the ring frame 36 will pull the eight bag hook pieces 22 to rotate synchronously outward on the bag hook holder 23, so that the bag hook pieces 22 are in the open state and release the fungus bag.

[0058] The above state is the first state: The first bag forming structure takes the bag, the second bag forming structure fills the material, and the third bag forming structure drops the bag.

[0059] Then the loop bagging cylinder 6 rotates 120 degrees driven by the rotating motor, so that the first bag forming structure in the bag hooking state rotates to the position of the previous second bag forming structure, aligns with the seasoning auger for filling; the second bag forming structure with the filled fungus bag inside rotates to the bag dropping position of the previous third bag forming structure. At this time, since the combined cylinder bearing 31 on the second bag forming structure is released from the restraint of the combined cylinder track 35, under the action of the torsion spring, the movable half cylinder opens, and the fungus bag drops at the bag dropping position; after the bag dropping, the third bag forming structure rotates to the position of the previous first bag forming structure. At this time, since the combined cylinder bearing 31 on the third bag forming structure will enter the limiting track again, the movable half cylinder is closed, and the third bag forming structure will align with the auxiliary bagging cylinder 5 to prepare for taking the bag.

[0060] After the second state (the first bag-packing structure fills the bag, the second bag-packing structure drops the bag, and the third bag-packing structure takes the bag) is completed, the cyclic bagging cylinder 6 rotates another 120 degrees driven by the rotating motor, adjusting the state to the third state (the first bag-packing structure drops the bag, the second bag-packing structure takes the bag, and the third bag-packing structure fills the bag). When the third state is completed, the cyclic bagging cylinder 6 rotates another 120 degrees driven by the rotating motor, adjusting the state to the first state (the first bag-packing structure takes the bag, the second bag-packing structure fills the bag, and the third bag-packing structure drops the bag). Working in this cycle, each bagging cylinder sequentially completes the three processes of taking the bag, filling the bag, and dropping the bag, and then repeats the cycle of taking the bag, filling the bag, and dropping the bag to complete the bagging work of the bagging machine.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add, delete, or make other adjustments to the features in the embodiments of the present invention according to the situation, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A three-cylinder circulating bagging device, characterized in that, include: A hopper (1), a frame (2), a stuffing agitator (3), a bag-supporting device (4), an auxiliary bag-sleeving cylinder (5) and a circulation bag-sleeving cylinder (6); the hopper (1) is fixedly mounted on the outside of the frame (2); the stuffing agitator (3) is threadedly connected to the bottom of the hopper (1); an auxiliary bag-sleeving cylinder (5) is also arranged on the inner side of the frame (2) near the hopper (1); a hook stopper (30) is arranged on the bottom of the frame (2) near the auxiliary bag-sleeving cylinder (5); an external frame (7) is fixedly connected to the outside of the frame (2); the bag-supporting device (4) is slidably connected to the external frame (7); an open hook stopper (29) is arranged on the inner side of the external frame (7) near the circulation bag-sleeving cylinder (6); a walking track (16) is also arranged in the frame (2); the walking track (16) is slidably connected to the circulation bag-sleeving cylinder (6).

2. The three-cylinder circulating bagging device according to claim 1, characterized in that, The auxiliary bag tube (5) comprises an octagonal bag-supporting mechanism (8) and a venting cylinder (9), and the octagonal bag-supporting mechanism (8) is slidably connected to the venting cylinder (9).

3. The three-cylinder circulating bagging device according to claim 2, wherein, The octagonal bag-supporting mechanism (8) comprises a revolving base (10), a sliding sleeve (11), a return spring (12) and a bag-supporting piece (13); the ventilator (9) comprises a threaded vent pipe (14) and an empty barrel (15); one end of the threaded vent pipe (14) is connected to an air pump, and the other end of the threaded vent pipe (14) passes through the sliding sleeve (11) and the return spring (12) in sequence and is slidably connected to the empty barrel (15); a bag-supporting piece (13) is hingedly connected to the sliding sleeve (11), and the bag-supporting piece (13) is hingedly connected to the revolving base (10).

4. A triple-cylinder circulating bagging device according to claim 1, characterized in that, The circulating bagging tube (6) comprises a slider, a frame, a travel motor (17), a rotary position control motor (18), a base (19), a bagging structure and a closing tube track (35); the slider is slidably connected to the travel track (16); the output end of the travel motor (17) is electrically connected to the input end of the slider; the slider is fixedly connected to the frame; the travel motor (17), the rotary position control motor (18) and the closing tube track (35) are all fixedly connected to the frame; the output end of the rotary position control motor (18) is rotatably connected to the base (19) via a rotating shaft; the three bagging structures are circumferentially fixed to the base (19); a notch is provided on the closing tube track (35); and the closing tube track (35) is slidably connected to the bagging structure.

5. A three-cylinder circulating bagging device according to claim 4, characterized in that The bagging structure comprises a bag hooking mechanism (20), a spring toggle mechanism and an opening and closing embracing cylinder (21); the spring toggle mechanism is arranged on the outer side of the opening and closing embracing cylinder (21); and the spring toggle mechanism is fixedly connected to the bag hooking mechanism (20).

6. The three-cylinder circulating bagging device according to claim 5, wherein, The bag hooking mechanism (20) comprises a bag hooking piece (22), a bag hooking holder (23), a connecting piece (24) and a circular ring frame (36); the bag hooking holder (23) is in a circular ring shape; a plurality of bag hooking pieces (22) are circumferentially distributed on the inner side of the bag hooking holder (23); a plurality of bag hooking pieces (22) are hingedly connected to the bag hooking holder (23) and the connecting piece (24); the connecting piece (24) is hingedly connected to the circular ring frame (36); and the bag hooking holder (23) and the circular ring frame (36) are both fixedly connected to a spring toggle mechanism.

7. A three-cylinder circulating bagging device according to claim 6, characterized in that, The spring actuating machine includes a sliding base (26), a retaining tension spring (27), a touch rod (28), a sliding bearing seat (34) and a sliding connecting rod (25). A sliding bearing seat (34) is fixedly connected to the outer side of the opening and closing barrel (21). A sliding connecting rod (25) is slidably connected to the sliding bearing seat (34). The sliding connecting rod (25) is fixedly connected to the sliding base (26) and the circular ring frame (36). A sliding groove is formed in the sliding base (26), and a rotating shaft is arranged in the sliding groove. The rotating shaft is fixedly connected to the opening and closing barrel (21). The touch rod (28) is hinged to the rotating shaft. The two ends of the retaining tension spring (27) are respectively fixed to the sliding base (26) and the touch rod (28).

8. A three-cylinder circulating bagging device according to claim 7, characterized in that, The opening and closing barrel (21) includes a movable half barrel, a fixed half barrel, a barrel bearing (31), a torsion spring (32) and a hinge (33). The movable half barrel and the fixed half barrel are hinged through the hinge (33). The barrel bearing (31) and the torsion spring (32) are both arranged on the movable half barrel. The spring actuating mechanism is arranged on the fixed half barrel. The barrel bearing (31) is slidably connected to the barrel track (35).

9. The three-cylinder circulating bagging device according to claim 1, characterized in that, The hook opening block (29) and the hook closing block (30) are in contact with the touch rod (28).

10. A triple-cylinder circulating bagging device according to claim 1, characterized in that, The circulating bag sleeve cylinder (6) corresponds to the stuffing auger (3) and the auxiliary bag sleeve cylinder (5).

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