CN113148358A

CN113148358A - Ton bag unloading method

Info

Publication number: CN113148358A
Application number: CN202110460810.5A
Authority: CN
Inventors: 赵亮
Original assignee: Harbin Chuangbo Intelligent Equipment Co ltd
Current assignee: Harbin Chuangbo Intelligent Equipment Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-23

Abstract

The invention discloses a ton bag unloading method, which comprises the following steps: s1, moving the ton bag to a discharging platform by using a feeding device, and inserting a lower opening of the ton bag into the discharging opening; s2, an operator plugs the lower opening of the ton bag into the inner hole of the compression ring and then sleeves the lower opening of the ton bag outside the inner bin from the outer part of the upper end of the inner bin; s3, driving the pressing ring to descend by the driving device to be matched with the end part of the inner bin to press the ton bag; s4, the lower opening of the ton bag is locked and closed by the action of the locking mechanism; s5, unpacking the lower opening of the ton bag by an operator; s6, the locking mechanism loosens the lower opening of the ton bag to achieve discharging, and the flapping mechanism flares the ton bag in the discharging process. The discharging method can reasonably and tightly match the lower opening of the ton bag with the discharging hopper in the process of discharging the ton bag, reduces scattering of dust, can realize automatic locking and beating, enables discharging to be more thorough and smoother, and is particularly suitable for intermittent discharging.

Description

Ton bag unloading method

Technical Field

The invention relates to a ton bag unloading method, in particular to a ton bag unloading method of an unloading machine for ton bags containing powder or granular materials.

Background

The ton bag unloading machine can handle unpacking and unloading operation of large bag powdery or granular material bags and is widely applied to industries of food, medicine, chemical industry and the like. The ton package is placed on ton package unloader and places the lower mouthful of ton package at the discharge opening of unloader and unload. However present discharge bin subassembly mainly includes a conical discharge bin, the upper end opening of discharge bin, and the lower mouthful of ton package is filled in or is overlapped and just can unload at the upper shed of discharge bin. This kind of discharge bin need be with carrying out the fore shaft of ton package when the end opening suit of ton package, and present fore shaft generally is through artifical winding locking rope, and the position of locking rope leaves the end opening certain distance of ton package, makes things convenient for the end opening to match with the last mouthful of discharge bin like this, then the manual work is opened locking rope after the cooperation is good again, and it is very inconvenient to operate like this. In addition, the materials packed in the ton bag can be caked due to damp and extrusion, so that unsmooth blockage can occur during the unloading of the ton bag unloader. In addition, in the discharging process of the current ton bag discharging machine, the situation of material leakage or dust raising may occur to powder or granular materials, so that the discharging site environment is poor.

In addition, when ton package unloading in-process need be closed and unload, just can only close the bottom discharge gate of dummy car, and the material of ton package just also can unload and enter into the dummy car in, just so lead to the powder to store in the dummy car, and easy moist and harden to the material dummy car behind the hardening is difficult for the ejection of compact.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the ton bag unloading method can reasonably press and match the lower opening of a ton bag with the unloading hopper in the ton bag unloading process, reduces scattering of dust, can realize automatic locking and beating, enables unloading to be more thorough and smoother, and is particularly suitable for intermittent unloading.

In order to solve the technical problems, the technical scheme of the invention is as follows: a ton bag unloading method uses a ton bag unloader which comprises a frame, wherein an unloading platform is arranged on the frame, a discharge opening is formed in the unloading platform, an unloading bin communicated with the discharge opening is fixed at the bottom of the unloading platform, a flapping mechanism for flapping ton bags is arranged above the discharge opening on the frame, a locking mechanism for locking the lower opening of the ton bags is arranged on the unloading platform, a feeding device for moving the ton bags onto the unloading platform is arranged above the flapping mechanism on the frame, the unloading bin comprises an outer bin, the upper end of the outer bin is opened and fixed at the bottom of the unloading platform, an inner bin arranged in the outer bin is fixed on a bottom plate of the outer bin, a discharge opening is formed in the bottom of the inner bin, a compression ring is axially slidably mounted on a bottom plate of the outer bin, the compression ring is positioned above the inner bin and matched with the upper end of the inner bin, the outer bin is provided with a driving device for driving the compression ring to ascend and descend, and the outer bin is hinged with a bin door which can be opened and closed; the method comprises the following steps:

s1, moving the ton bag to a discharging platform by using a feeding device, and inserting a lower opening of the ton bag into the discharging opening;

s2, an operator plugs the lower opening of the ton bag into the inner hole of the compression ring and then sleeves the lower opening of the ton bag outside the inner bin from the outer part of the upper end of the inner bin;

s3, driving the pressing ring to descend by the driving device to be matched with the end part of the inner bin to press the ton bag;

s4, the lower opening of the ton bag is locked and closed by the action of the locking mechanism;

s5, unpacking the lower opening of the ton bag by an operator;

s6, the locking mechanism loosens the lower opening of the ton bag to achieve discharging, and the flapping mechanism flares the ton bag in the discharging process.

Preferably, the discharging method further comprises a dust removing step, a plurality of pipe joints are further fixed at the bottom of the outer bin, a dust remover is fixed on the rack, a negative pressure suction port of the dust remover is communicated with the pipe joints through a negative pressure suction pipe, and materials scattered between the outer bin and the inner bin are sucked out by utilizing the suction effect of the dust remover.

Preferably, the locking mode of the locking mechanism is as follows: providing a first locking plate and a second locking plate which slide relatively and are provided with locking groove grooves, wherein the first locking plate is provided with a slot which is convenient for the second locking plate to insert in the vertical direction; when the clamping device needs to be loosened, the first locking port plate and the second locking port plate are driven by the corresponding sliding power devices to be away from each other, and the area between the two locking port grooves is gradually enlarged and the lower port of the clamped ton bag is loosened.

Preferably, the discharging method further comprises a squeezing step in the discharging process, and the ton bag is squeezed from the left side and the right side by using two squeezing parts.

Preferably, the discharging method further comprises a stirring discharging step, wherein the bottom of the discharging bin is connected with a stirring discharging bin, a stirring device and a discharging pipe opening are arranged in the stirring discharging bin, the stirring device continuously stirs materials in the discharging process, and the materials are sucked out from the discharging pipe opening by utilizing the negative pressure principle.

Preferably, the tapping manner of the tapping mechanism in step S6 is: the two swing frames are installed on the discharging platform in a deflection mode, the swing frames are driven by a deflection power device to flap outside the ton bag in a deflection mode, and when the flap is not needed, the two swing frames are intersected to form an included angle and are located at a guide station.

After the technical scheme is adopted, the invention has the effects that: this method of unloading passes the back cover from the inside of clamping ring with the end opening of ton package on interior storehouse, then the clamping ring pushes down, just so accomplished end opening and the linking and the closure of unloading the storehouse, whole process has reduced the scattering of material, and the operation is also very smooth and easy, then artifical bale breaking back with ton, the start-stop of unloading is controlled just through fore shaft mechanism fore shaft or pine to subsequent unloading process, follow-up whole process does not need artifical the participation, inhale the material process and pat, and also can destroy hardened material, make unload more smoothly more thoroughly.

The discharging method also comprises a dust removing step, a plurality of pipe joints are fixed at the bottom of the outer bin, a dust remover is fixed on the rack, a negative pressure suction port of the dust remover is communicated with the pipe joints through a negative pressure suction pipe, materials scattered between the outer bin and the inner bin are drawn out by using the suction effect of the dust remover, after discharging is completed, the pressing ring and the locking mechanism are loosened, the ton bag can be removed, and in the removing process, some materials possibly remain in the ton bag, so that the materials are possibly scattered in the transferring process of the ton bag, and the scattered materials can be drawn out by the suction effect of the dust remover, so that accumulation and pollution are avoided.

The locking mode of the locking mechanism is as follows: providing a first locking plate and a second locking plate which slide relatively and are provided with locking groove grooves, wherein the first locking plate is provided with a slot which is convenient for the second locking plate to insert in the vertical direction; when the locking mechanism needs to be loosened, the first locking plate and the second locking plate are driven by the corresponding sliding power devices to be away from each other, the area between the two locking grooves is gradually increased, and the lower opening of the ton bag is loosened and clamped.

And because the discharging method also comprises an extrusion step in the discharging process, the ton bag is extruded from the left side and the right side by utilizing the two extrusion parts, and the extrusion can be carried out in the discharging process by utilizing the extrusion step, so that the extrusion force is generated in the discharging process, and the discharging is smoother.

And because the discharging method also comprises a stirring discharging step, the bottom of the discharging bin is connected with the stirring discharging bin, the stirring device and the discharging pipe opening are arranged in the stirring discharging bin, the stirring device continuously stirs in the discharging process, the material is sucked out from the discharging pipe opening by utilizing the negative pressure principle, and the smooth discharging degree can be further improved by utilizing the stirring discharging device.

In addition, the beating manner of the beating mechanism in the step S6 is as follows: two swing brackets are installed to beat on the platform of unloading, and the swing bracket is beated in the ton package outside by the beat power device drive beat, when need not patting, two swing brackets intersect and become an contained angle and be in the direction station, should beat the mode action reliably to can also form an contained angle and have the direction effect of material after patting the completion.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of the structure of an embodiment of the present invention;

FIG. 2 is a perspective view of the present invention with the ton bag and the loading mechanism hidden;

FIG. 3 is a perspective view of the present invention with the ton bag, the loading device and the duster hidden;

FIG. 4 is a schematic structural view of the discharge platform, the discharge bin and the patting mechanism;

FIG. 5 is a schematic view of the discharge bin and the fore shaft mechanism;

FIG. 6 is a schematic structural view of a fore shaft mechanism;

FIG. 7 is a schematic view of another angle configuration of the latching mechanism;

FIG. 8 is a bottom view of the latching mechanism;

FIG. 9 is a perspective view of the discharge bin;

FIG. 10 is a perspective view of a blending discharge bin;

FIG. 11 is a cross-sectional view of a blending discharge bin;

FIG. 12 is an enlarged schematic view of FIG. 11 at A;

in the drawings: 1. a frame; 2. bagging by ton; 3. an electric hoist; 4. a discharge platform; 41. feeding a plate surface; 42. a frame; 5. a discharging bin; 51. an inner bin; 52. an outer bin; 53. pressing a ring; 54. connecting lugs; 55. a drive rod; 56. a bin gate; 57. quick locking; 58. a drive device; 59. a rubber layer; 6. a flapping mechanism; 61. a swing frame; 611. an outer frame; 612. beating the frame; 62. a yaw power device; 7. a discharge pipe orifice; 8. an extrusion mechanism; 81. an extrusion stem; 82. a blunt tip; 83. an extrusion cylinder; 9. a discharge opening; 10. a fore shaft mechanism; 101. a second fore shaft plate; 102. a first fore shaft upper plate; 103. a first lower hatch plate; 104. a slot; 105. a fore shaft groove; 106. a first cylinder; 107. a second cylinder; 108. a second connecting block; 11. a dust remover; 12. a discharge bin body; 13. a discharge pipe section; 14. a stirring device; 141. a first connecting screw; 142. a long blade; 143. a stirring main shaft; 144. a kind of stirring blade; 145. short blades; 146. driving the main shaft; 147. connecting the cylinder seat; 15. a stirring motor; 151. a first connecting flange; 152. a second connecting screw; 153. an output shaft of the motor.

Detailed Description

The present invention is described in further detail below with reference to specific examples.

A ton bag unloading method, which uses a ton bag unloader comprising the steps of:

s1, moving the ton bag 2 to a discharging platform by using a feeding device, and plugging a lower opening of the ton bag 2 into a discharging opening; under normal conditions, the lower opening of the ton bag 2 is bundled with a rolling belt; and the binding position of the binding belt is a certain distance away from the end part of the lower opening;

s2, an operator plugs the lower opening of the ton bag 2 into the inner hole of the pressure ring and then sleeves the lower opening of the ton bag 2 outside the inner bin 51 from the outer part of the upper end of the inner bin 51;

s3, the driving device 58 drives the pressing ring 53 to descend and match with the end part of the inner bin 51 to press the ton bag 2;

s4, the lower opening of the ton bag 2 is locked and closed by the action of the locking mechanism 10;

s5, unpacking the lower opening of the ton bag 2 by an operator;

s6, the locking mechanism 10 loosens the lower opening of the ton bag 2 to achieve discharging, and the patting mechanism 6 patts the ton bag 2 in the discharging process.

Preferably, the discharging method further comprises a dust removing step, a plurality of pipe joints are further fixed at the bottom of the outer bin 52, the dust remover 11 is fixed on the rack 1, a negative pressure suction port of the dust remover 11 is communicated with the pipe joints through a negative pressure suction pipe, and materials scattered between the outer bin 52 and the inner bin 51 are sucked out by the suction effect of the dust remover 11.

Preferably, the locking mode of the locking mechanism 10 is as follows: providing a first locking plate and a second locking plate 101 which slide relatively and are provided with locking groove grooves 105, wherein the first locking plate is provided with slots 104 which are convenient for the second locking plate 101 to insert in the vertical direction, when locking is needed, the first locking plate and the second locking plate are driven by corresponding sliding power devices to approach each other, and the area between the two locking grooves is gradually reduced and finally clamps the ton bag; when the locking mechanism needs to be loosened, the first locking plate and the second locking plate are driven to move away from each other by corresponding sliding power devices, and the area between the two locking grooves 105 is gradually enlarged and the lower opening of the clamped ton bag is loosened.

As shown in fig. 1 to 12, a ton bag unloader for implementing the above method includes a frame 1, a discharging platform 4 is provided on the frame 1, a discharging opening 9 is provided on the discharging platform 4, a discharging bin 5 communicated with the discharging opening 9 is fixed at the bottom of the discharging platform 4, a beating mechanism 6 for beating the ton bag 2 is provided above the discharging opening 9 on the frame 1, and a locking mechanism 10 for locking the lower opening of the ton bag 2 is installed on the discharging platform 4.

In this embodiment, the discharging platform 4 includes a frame 42 fixed by four sectional materials, the frame 42 is a rectangular structure, the upper part and the lower part of the frame 42 are respectively fixed with an upper plate surface 41 and a lower plate surface, and the upper plate surface 41 and the lower plate surface are both provided with discharging openings 9.

As shown in fig. 5 to 8, the fore shaft mechanism 10 includes at least two fore shaft plates installed on the discharging platform 4 in a radial sliding manner, each fore shaft plate is driven by a sliding power device, one end of the fore shaft plate close to the discharging port 9 is provided with an fore shaft groove 105 which is matched with each other to lock the lower port of the ton bag 2, and the sliding power device drives the fore shaft plates to be close to each other to lock the lower port of the ton bag 2 or to be away from each other to loosen the lower port of the ton bag 2.

As a preferable scheme, the number of the locking plates is two and the two locking plates are arranged oppositely, the two locking plates include a first locking plate and a second locking plate 101, and the first locking plate is provided with a slot 104 which facilitates the insertion of the second locking plate 101 in the up-down direction. The fore shaft grooves 105 of the two fore shaft plates are circular arc grooves. Of course, the number of the locking plate can be multiple, and the closing and opening of the discharge opening 9 can also be realized.

In this embodiment, the first locking plate includes a first locking upper plate 102 and a first locking lower plate 103, a first connecting block is connected between the first locking upper plate 102 and the first locking lower plate 103, and the first locking upper plate 102, the first locking lower plate 103 and the first connecting block are fixed by bolts, so that a gap is formed between the first locking lower plate 103 and the first locking upper plate 102, and the gap forms a slot 104 for facilitating insertion of the second locking plate 101. The sliding power device for driving the first locking plate is a first air cylinder 106, the first air cylinder 106 is fixed on the frame 1, and a piston rod of the air cylinder is connected with the first connecting block. The sliding power device for driving the second locking plate 101 is a second air cylinder 107, the second air cylinder 107 is fixed on the frame 1, a piston rod of the second air cylinder 107 is connected with a second connecting block 108, and the second connecting block 108 is located at the bottom of the second locking plate 101. The first and

second locking plates

101, 108 are located between the upper plate 41 and the lower plate.

As shown in fig. 1, the top that lies in beater mechanism 6 in frame 1 is provided with and removes ton package 2 to the loading attachment on the platform 4 of unloading, frame 1 includes the frame 42 structure that forms by the rectangle tubular product is fixed, the platform 4 of unloading is fixed in the middle part of frame 1, the regional one side opening in the top that lies in the platform 4 of unloading in frame 1 forms the entering window that makes things convenient for ton package 2 horizontal migration, the top that lies in the platform 4 of unloading in frame 1 is provided with the electric block 3 that is used for carrying ton package 2.

As shown in fig. 9, the discharging bin 5 includes an outer bin 52, the upper end opening of the outer bin 52 is fixed at the bottom of the discharging platform 4, an inner bin 51 located in the outer bin 52 is fixed on the bottom plate of the outer bin 52, a discharging port is arranged at the bottom of the inner bin 51, a pressing ring 53 is axially and slidably mounted on the bottom plate of the outer bin 52, the pressing ring 53 is located above the inner bin 51 and is matched with the upper end of the inner bin 51, a driving device 58 for driving the pressing ring 53 to lift is mounted on the outer bin 52, and a bin door 56 which can be opened and closed is hinged on the outer bin 52. The cross section of the inner bin 51 is a circular inner bin 51, and the pressing ring 53 and the inner bin 51 are concentrically arranged. The number of the bin gates 56 is at least two, each bin gate 56 is hinged on the side wall of the outer bin 52, and each bin gate 56 is connected through a quick lock 57.

The outside of clamping ring 53 is provided with two engaging lugs 54, the axial slidable mounting has the actuating lever 55 with engaging lug 54 one-to-one on the bottom plate of outer storehouse 52, the one end and the engaging lug 54 of actuating lever 55 are connected, drive arrangement 58 set up in the bottom of outer storehouse 52, the drive end of drive arrangement 58 is connected with actuating lever 55. The driving device 58 is an air cylinder, a piston rod of the air cylinder is connected with the driving rod 55, and the driving rod 55 is sleeved with a corrugated protective sleeve. And a plastic or rubber layer 59 is adhered to the bottom surface of the compression ring 53.

As shown in fig. 1 and 2, a plurality of pipe joints are further fixed at the bottom of the outer bin 52, a dust remover 11 is fixed on the frame 1, and a negative pressure suction port of the dust remover 11 is communicated with the pipe joints through a negative pressure suction pipe. In this embodiment, the dust collector 11 is an existing dust collector 11, such as a filter bag dust collector 11 or a filter cartridge dust collector 11.

As shown in fig. 2 to 4, the flapping mechanism 6 includes at least one swing frame 61 which is swing-mounted on the frame 1, the swing frame 61 is located above the discharge opening 9, a flapping portion for flapping the ton bag 2 is provided on the swing frame 61, a swing power device 62 for driving the swing frame 61 to swing is provided between the swing frame 61 and the frame 1, and the swing power device 62 is driven by an air cylinder. The swing frame 61 comprises a U-shaped outer frame 611, the flapping part comprises a U-shaped flapping frame 612, the outer frame 611 is installed on the rack 1 in a swinging mode through a hinge shaft, the flapping frame 612 is welded in the middle of the swing frame 61, the deflection power device 62 is arranged between the outer frame 611 or the flapping frame 612 and the rack 1, the lower end of the flapping frame 612 deflects towards the discharge opening 9 to enable the plane where the flapping frame 612 is located and the plane where the outer frame 611 is located to form an acute angle, the number of the swing frames 61 is preferably two and located on two opposite sides of the discharge opening 9 respectively, each swing frame 61 is driven by the respective deflection power device 62, and the two flapping frames 612 form a guide structure facilitating discharging when the swing frame 61 is located at an avoiding station.

As shown in fig. 1 and 3, a pressing mechanism 8 for pressing the ton bag 2 is provided on the frame 1 above the tapping mechanism 6. The squeezing mechanism 8 comprises a squeezing cylinder 83, a squeezing rod 81 is fixed on a piston rod of the squeezing cylinder 83, and a blunt head 82 is arranged on the squeezing rod 81.

As shown in fig. 1, fig. 10, fig. 11 and fig. 12, a bottom discharge port of the discharge bin 5 is further connected with a stirring discharge bin, the stirring discharge bin includes a tapered discharge bin body 12, a discharge pipe section 13 is arranged at the bottom of the discharge bin body 12, a side surface of the discharge pipe section 13 is used for a discharge pipe opening 7 communicated with a negative pressure discharge pipe, a connection pipe opening is arranged at the bottom of the discharge pipe section 13, and a stirring device 14 is rotatably installed at the connection pipe opening.

Wherein, agitating unit 14 includes the drive main shaft 146 by agitator motor 15 drive, the last stirring main shaft 143 that can dismantle of drive main shaft 146 is fixed with, stirring main shaft 143 is provided with discrete one type stirring vane 144 and discrete two types stirring vane all around, one type stirring vane 144 slope sets up upwards and is located ejection of compact storehouse body 12 bottom, two types stirring vane spiral sets up upwards and is located ejection of compact pipeline section 13.

The first-type stirring blade 144 comprises an L-shaped stirring blade fixed on the driving main shaft 146, the stirring blade comprises a first plate part and a second plate part, the first plate part is attached to and fixed on the driving main shaft 146, an obtuse angle is formed between the second plate part and the first plate part, a connecting plate part is connected between the first plate part and the second plate part, and the second plate part is twisted and extends outwards; the second type of stirring blades comprise a plurality of short blades 145 spirally arranged on a driving main shaft 146 and long blades 142 positioned above the short blades 145, and the long blades 142 are arranged in a transition area between the discharging bin body 12 and the discharging pipe section 13.

The fixed connection mode of the driving main shaft 146 and the stirring main shaft 143 is as follows: a connecting screw hole is formed in the center of the driving main shaft 146, a sleeving part sleeved at the upper end of the driving main shaft 146 is arranged at the bottom of the stirring main shaft 143, a first connecting screw rod 141 installed in the connecting screw hole penetrates through the stirring main shaft 143 from top to bottom, and the driving main shaft 146 and the stirring main shaft 143 are fixedly connected through the first connecting screw rod 141.

The lower extreme of ejection of compact pipeline section 13 is fixed with connection cylinder base 147, drive main shaft 146 passes through the bearing and rotates and install in connecting cylinder base 147, the bottom of drive main shaft 146 is provided with the drive shaft hole, agitator motor 15 is fixed on connecting cylinder base 147 and the output shaft 153 of motor is stuffed into in the drive shaft hole and the transmission is connected, wherein connect cylinder base 147 as the effect of bearing frame, the bearing is installed in connecting cylinder base 147 and is realized axial spacing through the clamp plate, wherein can adopt the mode transmission moment of torsion of transmission key between output shaft and the drive shaft hole. The upper end of the connecting cylinder seat 147 is provided with a mounting step, the lower end of the connecting cylinder seat 147 is provided with a first connecting flange 151, the lower end of the discharging pipe section 13 is provided with a second connecting flange, the mounting step of the connecting cylinder seat 147 is inserted into the discharging pipe section 13, and the first connecting flange 151 and the second connecting flange are fixedly connected through a second connecting screw 152.

The gas circuit system, the actuating devices such as the servo motor and the like, the gear transmission mechanism and the screw and nut mechanism mentioned in the embodiment are all the conventional technologies at present, the specific structures and principles of the cylinder, the motor and other transmission mechanisms and other designs are disclosed in detail in the fifth edition of the mechanical design manual printed for the twenty-eighth edition in the fifth edition of Beijing in 4 months of 2008, and belong to the prior art, the structure of the gas circuit system belongs to the prior art, the structure of the gas circuit system is clearly clarified, the vacuum element, the gas circuit and the program control are disclosed in detail in the modern practical pneumatic technology 3 rd edition SMC training teaching material published by the mechanical industry publisher in 08 months and 01 days of 2008, the gas circuit structure in the embodiment is also the prior art, and the control and the travel switch of the motor are also described in detail in the book of Motor drive and speed regulation published by the chemical industry publisher in 07 months and 01 days of 2015, therefore, the circuit and the gas circuit connection are clear. The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims

1. A ton bag unloading method is characterized in that: the method uses a ton bag unloader which comprises a frame, wherein an unloading platform is arranged on the frame, a discharge opening is arranged on the unloading platform, a discharge bin communicated with the discharge opening is fixed at the bottom of the unloading platform, a flapping mechanism for flapping the ton bags is arranged on the frame above the discharge opening, a locking mechanism for locking the lower opening of the ton bags is arranged on the unloading platform, a feeding device for moving the ton bags to the unloading platform is arranged on the frame above the flapping mechanism, the discharge bin comprises an outer bin, the upper end of the outer bin is open and fixed at the bottom of the unloading platform, an inner bin positioned in the outer bin is fixed on a bottom plate of the outer bin, a discharge opening is arranged at the bottom of the inner bin, a pressure ring is axially slidably arranged on the bottom plate of the outer bin, the pressure ring is positioned above the inner bin and matched with the upper end of the inner bin, the outer bin is provided with a driving device for driving the compression ring to ascend and descend, and the outer bin is hinged with a bin door which can be opened and closed; the method comprises the following steps:

s5, unpacking the lower opening of the ton bag by an operator;

2. The ton bag discharging method according to claim 1, wherein: the discharging method further comprises a dust removing step, a plurality of pipe joints are further fixed at the bottom of the outer bin, a dust remover is fixed on the rack, a negative pressure suction port of the dust remover is communicated with the pipe joints through a negative pressure suction pipe, and materials scattered between the outer bin and the inner bin are sucked out by the aid of suction of the dust remover.

3. The ton bag discharging method according to claim 2, wherein: the locking mode of the locking mechanism is as follows: providing a first locking plate and a second locking plate which slide relatively and are provided with locking groove grooves, wherein the first locking plate is provided with a slot which is convenient for the second locking plate to insert in the vertical direction; when the clamping device needs to be loosened, the first locking port plate and the second locking port plate are driven by the corresponding sliding power devices to be away from each other, and the area between the two locking port grooves is gradually enlarged and the lower port of the clamped ton bag is loosened.

4. A ton bag discharging method according to claim 3, characterized in that: the discharging method also comprises an extruding step in the discharging process, and the ton bag is extruded from the left side and the right side by utilizing two extruding parts.

5. The ton bag discharging method according to claim 4, wherein: the discharging method further comprises a stirring discharging step, wherein the bottom of the discharging bin is connected with a stirring discharging bin, a stirring device and a discharging pipe opening are arranged in the stirring discharging bin, the stirring device continuously stirs materials in the discharging process, and the materials are sucked out from the discharging pipe opening by utilizing the negative pressure principle.

6. The ton bag discharging method according to claim 5, wherein: the beating mode of the beating mechanism in the step S6 is as follows: the two swing frames are installed on the discharging platform in a deflection mode, the swing frames are driven by a deflection power device to flap outside the ton bag in a deflection mode, and when the flap is not needed, the two swing frames are intersected to form an included angle and are located at a guide station.