Ton bag feeding system and feeding method

Abstract

A ton bag feeding system and feeding method, belonging to the technical field of raw material packaging bags or material unsealing, comprises: a turning cage, a lifting plate, a side support plate and a discharge pipe. The turning cage has an open structure at the top. The lifting plate is arranged inside the turning cage, and the lifting plate is arranged to move along the up and down direction of the turning cage. There are at least three side support plates, which are rotatably connected to the turning cage. The inner wall of the turning cage is provided with an elastic plate. When the elastic plate is in a natural state, the upper end of the side support plate opens toward the outside of the turning cage; the upper end of the side support plate is provided with an arc plate, and the outer wall of the arc plate is provided with an arc groove. The inner wall of one end of the discharge pipe is provided with a convex edge, and the other end of the discharge pipe is provided with a cover plate. An elastic rope is provided inside the discharge pipe for connecting the cover plate. The lifting plate and the side support plate are connected by a draw rope. This scheme does not need to cut the ton bag, can prevent the debris generated when the ton bag is cut from mixing into the feed, and can also ensure the integrity of the ton bag.

Description

Technical Field

[0001] The invention belongs to the technical field of raw material packaging bags or material unsealing, and in particular relates to a ton bag feeding system and a feeding method. Background Art

[0002] A large amount of raw materials such as beans and grains are needed in feed production. Such raw materials are usually transported by ton bags to packaging machines. After the raw materials are delivered to the production workshop, the ton bags need to be transferred to the silo or the feed pipes above various equipment with the help of lifting equipment for feeding.

[0003] Patent application number 202211127421.1 discloses an automatic feeding system for bagged materials, in which a bag opening device breaks the packaging bag of the material, so that the material falls into the hopper. In the prior art similar to the above scheme, the bottom of the ton bag is usually cut when feeding, so that the material falls automatically, resulting in a large amount of waste of ton bags, and when the ton bag is cut, it is easy for the debris of the ton bag to enter the raw materials together, which poses a certain hidden danger to the safety of feed consumption. Although some debris can be removed by screening and other means, it also increases the corresponding production cost, and it cannot guarantee that the debris will be completely removed. Summary of the invention

[0004] In order to solve the shortcomings of the prior art, the present invention provides a ton bag feeding system and feeding method, which can automatically discharge the materials in the ton bag without cutting the ton bag. It can not only prevent the debris generated when the ton bag is cut from mixing into the feed, but also ensure the integrity of the ton bag, which is convenient for reuse and avoids waste.

[0005] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0006] A ton bag feeding system comprises a turning cage, a lifting plate, a side support plate and a discharge pipe.

[0007] A rotating shaft is provided in the middle of the outer walls on both sides of the turning cage. The two rotating shafts are rotatably connected to the feed pipe opening. The rotating shafts are in a horizontal state and are driven by a motor. The top of the turning cage is an open structure.

[0008] The lifting plate is arranged inside the turning cage and is parallel to the bottom surface of the turning cage. A telescopic device is arranged at the bottom of the turning cage to drive the lifting plate to move in the up and down directions of the turning cage.

[0009] There are at least three side support plates, the lower ends of which are rotatably connected to the upper edge of the turning cage, the inner walls of the turning cage are provided with elastic plates with a bending structure, the upper ends of the elastic plates are in contact with the inner walls of the side support plates, and when the elastic plates are in a natural state, the upper ends of the side support plates are opened toward the outside of the turning cage; the upper ends of the side support plates are provided with arc plates, the outer walls of the arc plates are provided with arc grooves, and the arc grooves are located on the outsides of the side support plates.

[0010] The discharge pipe is a circular tube structure, and a convex edge of a circular ring structure is coaxially arranged on the inner wall of one end of the discharge pipe. A cover plate is arranged at the other end of the discharge pipe. An elastic rope is arranged inside the discharge pipe for connecting the cover plate so that the surface of the cover plate is pressed tightly against the end face of the discharge pipe.

[0011] The lifting plate and the side support plate are connected by a pull rope. When the lifting plate moves toward the bottom of the flip cage, the side support plate is pulled toward the inside of the flip cage by the pull rope. When the side support plate rotates toward the inside of the flip cage by a predetermined angle, all the arc plates are coaxial and form a circular tube structure, and the arc grooves on the arc plates together form an annular groove for clamping the convex edge. At this time, there is a predetermined interval between adjacent arc plates.

[0012] A ton bag feeding method is implemented by using the above-mentioned ton bag feeding system, and the method comprises the following steps:

[0013] S1: When lifting the ton bag, the top of the overturning cage faces upwards, and the side support plates are in an outward-expanding state under the action of the elastic plates. At this time, the lifting plate is in a high position, and the ton bag is lifted into the overturning cage;

[0014] S2: Arrange the ton bag, open the bag mouth of the ton bag, move the lifting plate to the bottom of the turning cage, pull the side support plate to the middle of the turning cage by the pull rope, until the outer diameter of the circular tube structure formed by the arc plate is smaller than the inner diameter of the convex edge, pull the bag mouth of the ton bag out of the circular tube structure, and fold the bag mouth to the outside of the arc plate;

[0015] S3: Install the discharge pipe, set the discharge pipe to face one end of the convex edge, and sleeve the convex edge on the outside of the round tube structure. The telescopic device drives the lifting plate to move upward until the pull rope is relaxed. Under the action of the elastic plate, the side support plate will open outward until the arc groove clamps the convex edge, and the bag mouth of the ton bag is pressed between the arc groove and the convex edge.

[0016] S4: rotating the flip cage, using the motor to control the rotation of the shaft, rotating the flip cage 180 degrees around the shaft, so that the top of the flip cage faces downward;

[0017] S5: Discharging: when the flip cage rotates to the top facing downward, the material is discharged by the gravity of the material or by driving the lifting plate to open the cover plate;

[0018] S6: Take out the ton bag. When the material is discharged, turn the flip cage to the top facing up, move the lifting plate to the bottom of the flip cage, use the pull rope to pull the side support plate to the middle to the limit position, take out the discharge pipe upward, move the lifting plate upward, the elastic plate will automatically push the side support plate to expand outward, so as to facilitate the removal of the empty ton bag from the top of the flip cage.

[0019] The beneficial effects of the present invention are:

[0020] 1. This solution uses a flipping method to discharge the ton bags. Compared with the discharge method of cutting the ton bags, it can effectively prevent impurities such as debris from mixing into the feed, reduce the difficulty of subsequent impurity removal, and make the ton bags reusable to avoid waste.

[0021] 2. During the flipping process, the bag mouth is pressed tightly into the arc groove by the discharge pipe, and the cover plate is used to close the discharge pipe, which can effectively prevent the leakage of materials during the flipping of the flip cage. The discharge pipe is used to limit the discharge channel of the material, effectively control the discharge speed, and prevent the material from scattering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0023] Figure 1 A schematic diagram of the preferred installation structure of the flip cage of the present application is shown.

[0024] Figure 2 The figure shows the overall structure of the present application when the side support plates are opened.

[0025] Figure 3 A cross-sectional view of the present application is shown with the side gussets deployed.

[0026] Figure 4 A cross-sectional view of the present application is shown when the discharge tube is installed and removed.

[0027] Figure 5 A cross-sectional view of the present application is shown when the convex edge is stuck in the arc groove.

[0028] Figure 6 Shows Figure 5 A partial enlarged view of point A in the middle.

[0029] Figure 7 A schematic diagram of the state of the present application is shown when the top of the flip cage is tilted downward.

[0030] Figure 8 A cross-sectional view of the present application is shown with the top of the flip cage tilted downward.

[0031] Fig. 9 A schematic diagram of the bottom structure of the feed pipe opening when the top of the flip cage is tilted downward is shown.

[0032] Fig.10 A cross-sectional view of the present application is shown with the top of the flip cage facing vertically downward.

[0033] Markings in the figure: flip cage -1, rotating shaft -11, motor -12, telescopic device -13, elastic plate -14, table -15, lifting plate -2, pull rope -21, side support plate -3, arc plate -31, arc groove -311, expansion spring -32, discharge pipe -4, convex edge -41, cover plate -42, elastic rope -43, support plate -91, factory floor -92, feed pipe mouth -93, push rod -94, telescopic cylinder -95. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figure 2 As shown, a ton bag feeding system includes: a turning cage 1, a lifting plate 2, a side support plate 3 and a discharge pipe 4.

[0036] Specifically, Figures 1 to 3 and Figures 7 to 10 As shown, a rotating shaft 11 is provided in the middle of the outer walls of the two opposite sides of the turning cage 1, and the two rotating shafts 11 are rotatably connected to the feeding pipe opening 93. In a specific embodiment, the feeding pipe opening 93 is connected to the top of the silo or feed production equipment, the rotating shaft 11 is in a horizontal state, the rotating shaft 11 is driven by a motor 12, and the top of the turning cage 1 is an open structure for loading and unloading ton bags.

[0037] Specifically, Figure 2 , Figure 3 As shown, the lifting plate 2 is arranged inside the turning cage 1 and is parallel to the bottom surface of the turning cage 1. A telescopic device 13 is provided at the bottom of the turning cage 1 to drive the lifting plate 2 to move along the up and down directions of the turning cage 1. The telescopic device 13 is a hydraulic cylinder or a linear motor.

[0038] Specifically, Figures 2 to 6 As shown, there are at least three side support plates 3, and the lower ends of the side support plates 3 are rotatably connected to the upper edge of the turning cage 1. Specifically, when the turning cage 1 is a polygonal structure, such as a square, a hexagon, etc., the rotation axis of the side support plate 3 is parallel to the corresponding edge of the turning cage 1. When the turning cage 1 is a circular structure, the rotation axis of the side support plate 3 is consistent with the tangent direction of the turning cage 1. The inner wall of the turning cage 1 is provided with an elastic plate 14 with a bending structure, and the upper end of the elastic plate 14 abuts against the inner wall of the side support plate 3. When the elastic plate 14 is in a natural state, the upper end of the side support plate 3 is opened toward the outside of the turning cage 1 to facilitate the lifting of ton bags into the turning cage 1; the upper ends of the side support plates 3 are provided with arc plates 31, and the outer walls of the arc plates 31 are provided with arc grooves 311, and the arc grooves 311 are located on the outer sides of the side support plates 3.

[0039] Specifically, Figures 2 to 6 As shown, the discharge pipe 4 is a circular tube structure, and the inner wall at one end thereof is coaxially provided with a convex edge 41 of a circular ring structure, and the other end of the discharge pipe 4 is provided with a cover plate 42. An elastic rope 43 is provided inside the discharge pipe 4 for connecting the cover plate 42 so that the surface of the cover plate 42 is pressed tightly against the end face of the discharge pipe 4.

[0040] Specifically, Figures 2 to 5 As shown, the edge of the lifting plate 2 is connected to the side support plate 3 on the corresponding side by a pull rope 21. When the lifting plate 2 moves toward the bottom of the flip cage 1, the side support plate 3 is pulled to rotate toward the inside of the flip cage 1 by the pull rope 21. When the side support plate 3 rotates toward the inside of the flip cage 1 by a predetermined angle, all the arc plates 31 are coaxial and form a circular tube structure, and the arc grooves 311 on the arc plates 31 together form an annular groove for clamping the convex edge 41, so that the discharge pipe 4 is connected to the arc plate 31, and the cover plate 42 is located on the outside of the arc plate 31. At this time, there is a predetermined interval between adjacent arc plates 31. The interval is used to make the arc plate 31 further retract toward the middle when loading and unloading the discharge pipe 4, so that the outer diameter of the circular tube formed by the arc plate 31 is smaller than the inner diameter of the convex edge 41 during the process of loading and unloading the discharge pipe 4.

[0041] The method and steps for feeding using the above-mentioned ton bag feeding system are as follows:

[0042] S1: Lifting bulk bags, such as Figure 1 , Figure 2 As shown, the top of the turning cage 1 is facing upward, and the side support plate 3 is in an outwardly expanded state under the action of the elastic plate 14, so as to facilitate the lifting of ton bags into the turning cage 1. At this time, the lifting plate 2 is in a high position, and the ton bags are lifted into the turning cage 1 by the crane or mobile lifting machinery in the workshop, and then the hook or rope used to connect the ton bags is removed.

[0043] S2: Arrange the ton bags, open the mouth of the ton bags, and move the lifting plate 2 to the bottom of the turning cage 1, such as Figure 4 As shown, the side support plate 3 is pulled toward the middle of the flip cage 1 by the pull rope 21 until the outer diameter of the circular tube structure formed by the arc plate 31 is smaller than the inner diameter of the convex edge 41. At this time, the pull rope 21 is in a taut state, the bag mouth of the ton bag is pulled out of the circular tube structure, and the bag mouth is folded to the outside of the arc plate 31.

[0044] S3: Install the discharge pipe 4, such as Figure 5 , Figure 6As shown, the discharge pipe 4 is arranged to face one end of the convex edge 41, and the convex edge 41 is sleeved on the outside of the circular tube structure, and the lifting plate 2 is driven to move upward by the telescopic device 13 until the pull rope 21 is relaxed, and under the action of the elastic plate 14, the side support plate 3 will open outward until the arc groove 311 clamps the convex edge 41, and the bag mouth of the ton bag is pressed between the arc groove 311 and the convex edge 41, so that the discharge pipe 4 and the turning cage 1 are connected as an integral structure, and can rotate with the turning cage 1, and at the same time, the bag mouth of the ton bag is fixed and sealed to prevent material leakage, and the cover plate 42 at the bottom of the discharge pipe 4 will prevent the material from being discharged from the discharge pipe 4 during the turning process of the turning cage 1.

[0045] S4: Turn the flip cage 1, as Figures 7 to 10 As shown, the motor 12 is used to control the rotation of the rotating shaft 11, and the turning cage 1 is rotated 180 degrees around the rotating shaft 11, so that the top of the turning cage 1 faces downward. When the turning cage 1 rotates to the top and gradually tilts downward, the discharge pipe 4 will be in a state of being suspended on the arc groove 311 by the convex edge 41. Although it seems that the risk of the discharge pipe 4 falling off is relatively large at this time, because the top of the turning cage 1 is tilted downward, the material begins to generate pressure on the side support plate 3, and this pressure makes the side support plate 3 have a tendency to expand outward, thereby allowing the arc groove 311 to further press the convex edge 41 to prevent the discharge pipe 4 from falling off. In addition, with the effects of the elastic plate 14 and the expansion spring 32, a multi-pronged approach can effectively prevent the discharge pipe 4 from falling off.

[0046] S5: Discharging, when the turning cage 1 rotates to the top facing downward, the cover plate 42 is opened by the gravity of the material or by driving the lifting plate 2 to discharge the material. Specifically, when the pressure exerted by the material on the cover plate 42 is greater than the elastic force of the elastic rope 43, the cover plate 42 will be opened for discharging, so as to achieve the purpose of automatic discharging. In the later stage of discharging, when the gravity of the material is not enough to push open the cover plate 42, the lifting plate 2 is pushed to move toward the top of the turning cage 1 by the telescopic device 13, so as to achieve the purpose of pushing the material to be discharged.

[0047] S6: Take out the ton bag. When the material is discharged, turn the turning cage 1 to the top facing upward, move the lifting plate 2 to the bottom of the turning cage 1, use the pull rope to pull the side support plate 3 to the middle to the extreme position, so that the outer diameter of the circular tube structure is smaller than the inner diameter of the flange 41, take out the discharge pipe 4 upward, move the lifting plate 2 upward, and the elastic plate 14 will automatically push the side support plate 3 to expand outward, so as to facilitate the removal of the empty ton bag from the top of the turning cage 1.

[0048] As a preferred solution, Figure 8 , Fig.10As shown, in step S5, when the turning cage 1 rotates to face the top downward, the cover plate 42 is pushed open by the push rod 94 provided inside the feed pipe opening 93. Specifically, when the top of the turning cage 1 faces downward, the cover plate 42 and the push rod 94 are at the same height, and the push rod 94 is used to push the cover plate 42 to deflect to the other side, thereby achieving the purpose of opening the cover plate 42 to realize automatic material discharge; on the other hand, in the later stage of discharging, when the material is reduced and the cover plate 42 cannot be pushed open by gravity, the cover plate 42 closes the lower end of the discharge pipe 4 under the action of the elastic rope 43, and the material in the ton bag cannot be completely discharged. The provision of the push rod 94 can prevent the cover plate 42 from closing the discharge pipe 4 during the discharging process. The push rod 94 can adopt the following two installation structures: First, as Figure 8 As shown, the end of the push rod 94 is fixedly arranged on the inner wall of the feed pipe opening 93, and the front end of the push rod 94 extends to the bottom of the flip cage 1. When the flip cage 1 is flipped to the top facing downward, the cover plate 42 will actively approach the front end of the push rod 94, and the front end of the push rod 94 is used to limit the movement of the cover plate 42, so that the flip cage 1 moves relative to the cover plate 42 to achieve the purpose of opening the cover plate 42. Second, as Figure 7 As shown, a telescopic cylinder 95 is provided on the outer wall of the feed pipe opening 93, so that the end of the push rod 94 is connected to the movable rod of the telescopic cylinder 95. When the top of the flip cage 1 is facing downward, the push rod 94 is driven by the telescopic cylinder 95, so that the front end of the push rod 94 is used to push the cover plate 42 to open.

[0049] As a preferred structure, Fig.10 As shown, a V-shaped groove is formed at the front end of the push rod 94 for clamping the edge of the cover plate 42 to prevent the push rod 94 and the cover plate 42 from slipping and misaligning.

[0050] Preferably, Figure 7 As shown, the main shaft of the motor 12 is coaxially provided with a worm, and one of the rotating shafts 11 is coaxially provided with a worm wheel meshing with the worm. The motor 12 drives the rotating shaft 11 to rotate through the transmission structure of the worm and worm wheel, so that the flip cage 1 is flipped. This driving method can ensure the stability of the flip cage 1 during the flipping process, and has a larger transmission torque. It can also utilize the self-locking function of the worm and worm wheel transmission to effectively prevent the flip cage 1 from rotating around the rotating shaft 11 at will.

[0051] Preferably, Figure 6 As shown, expansion springs 32 are provided between the side walls of adjacent arc plates 31. When the convex edge 41 is clamped in the arc groove 311, the expansion springs 32 are in a compressed state. The elastic force of the expansion springs 32 causes the arc plate 31 to be subjected to an outward expansion force, thereby causing the arc groove 311 to clamp the convex edge 41 more firmly to prevent the discharge pipe 4 from falling off.

[0052] Preferably, Figures 3 to 5 and Figure 8 , Fig.10As shown. The surface of the cover plate 42 used to press the discharge pipe 4 is a hemispherical surface, so that the cover plate 42 can be quickly aligned with the discharge pipe 4 through the hemispherical surface under the action of the elastic rope 43, preventing the cover plate 42 from deviating and causing material leakage, and the hemispherical surface can quickly block the discharge pipe 4, and the hemispherical surface pressing the pipe opening of the discharge pipe 4 can also prevent the cover plate 42 from slipping during the turning process of the turning cage 1; when the turning cage 1 is turned over to the state where the top is tilted downward or facing downward, the material can push the cover plate 42 open under the action of gravity to realize automatic discharge, at this time the elastic rope 43 will be stretched, and the hemispherical surface is also more conducive to the material falling and prevents the material from piling up.

[0053] Preferably, Figure 1 As shown, the feed pipe port 93 is provided with a support plate 91, and the support plate 91 is provided with a rectangular hole for setting the turning cage 1. Both sides of the turning direction of the turning cage 1 are provided with a table 15. When the top of the turning cage 1 is facing upward or downward, the upward side of the table 15 is flush with the top surface of the support plate 91. The support plate 91 can be convenient for the operator to stand on it to disassemble the bag mouth of the ton bag, take out the empty ton bag, and load and unload the discharge pipe 4. The purpose of setting the table 15 is to use the table 15 to close the end of the rectangular hole on the support plate 91 during the process of discharging the ton bag, taking and placing the ton bag, and loading and unloading the discharge pipe 4, so as to provide a safer operating platform for the operator.

[0054] Further preferably, Figure 1 As shown, the feed nozzle 93 is penetrated through the factory floor 92, and the top surface of the feed nozzle 93 is flush with the surface of the factory floor 92 to facilitate the operator's activities. As another preferred embodiment, the feed nozzle 93 is penetrated through the factory floor 92, and the top surface of the feed nozzle 93 protrudes upward from the factory floor 92 by a predetermined height to reduce the probability of foreign matter falling into the feed nozzle 93.

[0055] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A ton bag feeding system, characterized in that: include: The turning cage (1) has rotating shafts (11) in the middle of the outer walls on both sides opposite to each other. The two rotating shafts (11) are rotatably connected to the feed pipe opening (93). The rotating shafts (11) are in a horizontal state. The rotating shafts (11) are driven by a motor (12). The top of the turning cage (1) is an open structure. A lifting plate (2) is arranged inside the turning cage (1) and is parallel to the bottom surface of the turning cage (1). A telescopic device (13) is provided at the bottom of the turning cage (1) for driving the lifting plate (2) to move in the up-down direction of the turning cage (1); There are at least three side support plates (3), the lower ends of the side support plates (3) are rotatably connected to the upper edge of the turning cage (1), the inner wall of the turning cage (1) is provided with an elastic plate (14) with a bending structure, the upper end of the elastic plate (14) is in contact with the inner wall of the side support plate (3), and when the elastic plate (14) is in a natural state, the upper end of the side support plate (3) is opened toward the outside of the turning cage (1); the upper ends of the side support plates (3) are provided with arc plates (31), the outer walls of the arc plates (31) are provided with arc grooves (311), and the arc grooves (311) are located on the outer sides of the side support plates (3); The discharge pipe (4) is a circular tube structure, the inner wall of one end of which is coaxially provided with a convex edge (41) of a circular ring structure, the other end of the discharge pipe (4) is provided with a cover plate (42), and an elastic rope (43) is provided inside the discharge pipe (4) for connecting the cover plate (42) so that the surface of the cover plate (42) is pressed tightly against the end surface of the discharge pipe (4); The lifting plate (2) and the side support plate (3) are connected via a pull rope (21). When the lifting plate (2) moves toward the bottom of the flip cage (1), the side support plate (3) is pulled by the pull rope (21) to rotate toward the inside of the flip cage (1). When the side support plate (3) rotates toward the inside of the flip cage (1) by a predetermined angle, all the arc plates (31) are coaxial and form a circular tube structure, and the arc grooves (311) on the arc plates (31) together form an annular groove for clamping the convex edge (41). At this time, there is a predetermined interval between adjacent arc plates (31).

2. A bulk bag feeding system according to claim 1, characterized in that: A worm is coaxially arranged on the main shaft of the motor (12), and a worm wheel meshing with the worm is coaxially arranged on one of the rotating shafts (11).

3. A ton bag feeding system according to claim 1, characterized in that: An expansion spring sheet (32) is provided between the side walls of adjacent arc plates (31), and when the convex edge (41) is clamped in the arc groove (311), the expansion spring sheet (32) is in a compressed state.

4. A bulk bag feeding system according to claim 1, characterized in that: The surface of the cover plate (42) used for pressing the discharge pipe (4) is a hemispherical surface.

5. A ton bag feeding system according to claim 1, characterized in that: The feed pipe opening (93) is provided with a support plate (91), and the support plate (91) is provided with a rectangular hole for setting the turning cage (1). Tables (15) are provided on both sides of the turning direction of the turning cage (1). When the top of the turning cage (1) is facing upward or downward, the upward side of the table (15) is flush with the top surface of the support plate (91).

6. A ton bag feeding system according to claim 5, characterized in that: The feed pipe opening (93) is disposed through the factory floor (92), and the top surface of the feed pipe opening (93) is flush with the surface of the factory floor (92).

7. A method for feeding ton bags, characterized in that: The method is implemented by using the ton bag feeding system according to any one of claims 1 to 6, and comprises the following steps: S1: The ton bag is hoisted, the top of the turning cage (1) is facing upward, and the side support plates (3) are in an outwardly expanded state under the action of the elastic plates (14). At this time, the lifting plate (2) is in a high position, and the ton bag is hoisted into the turning cage (1); S2: Arrange the ton bag, open the bag mouth of the ton bag, move the lifting plate (2) toward the bottom of the turning cage (1), pull the side support plate (3) toward the middle of the turning cage (1) by the pull rope (21), until the outer diameter of the circular tube structure formed by the arc plate (31) is smaller than the inner diameter of the convex edge (41), pull the bag mouth of the ton bag out of the circular tube structure, and fold the bag mouth to the outside of the arc plate (31); S3: Install the discharge pipe (4), set the discharge pipe (4) to face one end of the convex edge (41), and sleeve the convex edge (41) on the outside of the circular tube structure. The telescopic device (13) drives the lifting plate (2) to move upward until the pull rope (21) is relaxed. Under the action of the elastic plate (14), the side support plate (3) will open outward until the arc groove (311) is stuck on the convex edge (41), and the bag mouth of the ton bag is pressed between the arc groove (311) and the convex edge (41); S4: rotating the flip cage (1), using the motor (12) to control the rotation of the rotating shaft (11), and rotating the flip cage (1) 180 degrees around the rotating shaft (11), so that the top of the flip cage (1) faces downward; S5: discharging the material, when the turning cage (1) rotates to face the top downward, the material is discharged by utilizing the gravity of the material or by driving the lifting plate (2) to open the cover plate (42); S6: Take out the ton bag. When the material is completely discharged, turn the turning cage (1) to a top-up position, move the lifting plate (2) toward the bottom of the turning cage (1), use the pull rope to pull the side support plate (3) toward the middle to the limit position, take out the discharge pipe (4), move the lifting plate (2) upward, and the elastic plate (14) will automatically push the side support plate (3) to expand outward, so as to facilitate taking out the empty ton bag from the top of the turning cage (1).

8. A method for feeding ton bags according to claim 7, characterized in that: In step S5, when the turning cage (1) is rotated to face top downward, the cover plate (42) is pushed open by a push rod (94) disposed inside the feed pipe opening (93).

9. A method for feeding ton bags according to claim 8, characterized in that: A V-shaped groove is formed at the front end of the push rod (94) for clamping the edge of the cover plate (42).

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