Bottom breaking type unpacking machine and efficient bag breaking and discharging device thereof

Abstract

The utility model discloses an efficient bag breaking and discharging device which comprises a discharging bin arranged at the bottom of a machine frame of a bottom breaking type unpacking machine and further comprises a jacking mechanism arranged in the discharging bin and a bag breaking mechanism connected with the output end of the jacking mechanism, and the jacking mechanism is used for driving the bag breaking mechanism to do vertical lifting motion. The bag breaking mechanism comprises a knife rest connected with the output end of the jacking mechanism, a crevasse conical head arranged at the top end of the knife rest and a plurality of conical cutting blades distributed in the circumferential direction of the knife rest, all the cutting blades are located below the crevasse conical head, and the crevasse conical head is used for puncturing the bottom face of a hoisting bag; the cutting blade is used for cutting a plurality of cracks distributed in the circumferential direction outside the crevasse of the bottom face of the hoisting bag. According to the utility model, the forward impact force between the cutter and the hoisting bag can be improved, and the successful bag breaking at a time can be efficiently and reliably realized. The utility model further discloses a bottom breaking type unpacking machine which has the advantages mentioned above.

Description

Technical Field

[0001] The utility model relates to the field of new energy technology, and in particular to a highly efficient bag breaking and unloading device. The utility model also relates to a bottom breaking bag unpacking machine. Background Art

[0002] With the development of the new energy industry, the market demand for lithium batteries is increasing day by day.

[0003] In the lithium battery industry, the powder required for lithium battery production is mainly packaged and transported in lifting bags, such as ton bags. Ton bags are large packaging bags used for lifting and transportation. They are of high quality, low price and strong structure. During the material preparation or feeding stage, the ton bags need to be lifted and transported to the unloading bin for unpacking, bag breaking and unloading.

[0004] In the traditional method of unpacking and breaking bags, since the mouth of the ton bag is tied with a rope and stirrups, it is necessary to manually cut the tying rope before unloading the materials, and then manually cut the ton bag when unloading the materials. However, too much manual operation not only consumes labor costs, but also creates the risk of material spraying due to manual cutting of the ton bag. At the same time, since the raw materials for lithium batteries are all micron-level powders, cutting the ton bag and directly unloading the materials will generate a lot of dust, which is very harmful to the production environment and the physical and mental health of personnel.

[0005] As an improvement, in order to meet the needs of lithium battery production, various types of unpacking machines have also emerged. At present, the existing technology mainly uses electric hoists to transport ton bags. When they are transported to the top of the unloading bin, the ton bags are put down again. The gravity of the ton bags when they are lowered is used to cut the bottom of the ton bags by the cutter above the unloading bin. The cutter is mainly a single-edged cutter or a cross double-edged cutter, and the blade is arranged vertically upward. However, on the one hand, due to the strong flexibility of the ton bag, the positive impact force is not large enough to cut the bottom surface of the ton bag by only relying on the weight of the ton bag itself and the cutter to impact and break the bag; on the other hand, due to the positive line contact between the cutter and the bottom surface of the ton bag, the stress is not concentrated enough, and it is not easy to directly cut a crack on the bottom surface of the ton bag. Instead, it is easy for the bottom surface of the ton bag to be concave, and the blade of the cutter and the bottom surface of the ton bag to slide and pull, which leads to a single unsuccessful and incomplete bag breaking. It may be necessary to reciprocate and break the bag many times, affecting the efficiency of the unloading operation.

[0006] Therefore, how to improve the positive impact force between the cutter and the lifting bag and achieve a single successful bag breaking efficiently and reliably is a technical problem faced by technical personnel in this field. Utility Model Content

[0007] The purpose of the utility model is to provide an efficient bag breaking and unloading device, which can improve the positive impact force between the cutter and the hoisting bag, and efficiently and reliably achieve a single successful bag breaking. Another purpose of the utility model is to provide a bottom breaking bag unpacking machine.

[0008] In order to solve the above technical problems, the utility model provides an efficient bag breaking and unloading device, comprising a unloading bin arranged at the bottom of a frame of a bottom breaking unpacking machine, and also comprising a lifting mechanism arranged in the unloading bin, and a bag breaking mechanism connected to the output end of the lifting mechanism, wherein the lifting mechanism is used to drive the bag breaking mechanism to perform vertical lifting movement;

[0009] The bag breaking mechanism includes a tool holder connected to the output end of the jacking mechanism, a breaking cone head arranged at the top of the tool holder, and a plurality of cutting blades distributed in a cone shape along the circumference of the tool holder, each of the cutting blades is located below the breaking cone head, the breaking cone head is used to pierce the bottom surface of the lifting bag, and the cutting blades are used to cut a plurality of cracks distributed along the circumference outside the breaking of the bottom surface of the lifting bag.

[0010] Preferably, the bag breaking mechanism further comprises a mounting column erected at the center of the tool holder, and the breaking cone head is detachably disposed on the top end of the mounting column.

[0011] Preferably, the bag breaking mechanism further comprises a plurality of mounting baffles connected between the mounting column and the blade holder, each of the mounting baffles is distributed along the circumference of the mounting column, and each of the cutting blades is detachably connected to each of the mounting baffles.

[0012] Preferably, the bag breaking mechanism further comprises a clamping plate detachably arranged on a side surface of the mounting baffle plate, so as to clamp and fix the cutting blade between the mounting baffle plate and the clamping plate.

[0013] Preferably, first fastening holes are provided on the mounting baffle plate and the clamping plate at corresponding positions, so that the mounting baffle plate and the clamping plate can be tightened and fixed by fasteners passing through the first fastening holes.

[0014] Preferably, second fastening holes are opened at corresponding positions on the mounting baffle, the clamping plate and the cutting blade, so that the mounting baffle, the clamping plate and the cutting blade can be tightened and fixed by fasteners passing through each of the second fastening holes.

[0015] Preferably, a plurality of drop holes for powder to drop are provided on the surface of the tool holder.

[0016] Preferably, the lifting mechanism includes a lifting mounting plate connected to the inner wall of the lower hopper, a lifting cylinder arranged on the lifting mounting plate, a guide light axis arranged on the lifting mounting plate, and a supporting bracket connected to the output end of the lifting cylinder, the lifting cylinder is used to drive the supporting bracket to perform vertical lifting movement, and the supporting bracket is connected to the tool holder.

[0017] Preferably, an observation window for observing the material discharge situation is provided on the side wall of the material discharge bin; and a mounting boss for mounting the jacking mechanism is provided on the inner wall of the material discharge bin.

[0018] The utility model also provides a bottom-breaking bag unpacking machine, comprising a frame and a bag-breaking and unloading device arranged on the frame, wherein the bag-breaking and unloading device is specifically the high-efficiency bag-breaking and unloading device described in any one of the above items.

[0019] The high-efficiency bag breaking and unloading device provided by the utility model mainly includes a feeding bin, a lifting mechanism and a bag breaking mechanism. Among them, the feeding bin is arranged at the bottom of the frame of the bottom breaking unpacking machine, and is mainly used to receive the powder contained in the lifting bag. The lifting mechanism is arranged in the feeding bin, and the output end of the lifting mechanism is connected to the bag breaking mechanism, which is mainly used to drive the bag breaking mechanism to perform vertical lifting movement in the feeding bin. The bag breaking mechanism mainly includes a tool holder, a breaking cone head and a cutting blade. Among them, the tool holder is the main component of the bag breaking mechanism, which is mainly used to install the remaining parts of the bag breaking mechanism, and the bag breaking mechanism as a whole is connected to the output end of the lifting mechanism through the tool holder. The breaking cone head is arranged at the top position of the tool holder, and is generally in the shape of a pointed cone or an arrow, and is mainly used to pierce the bottom surface of the lifting bag, thereby forming a point-shaped or circular break on the bottom surface of the lifting bag. The cutting blades are also arranged on the tool holder, and there are multiple cutting blades. Each cutting blade is distributed along the circumferential direction of the tool holder, and each cutting blade is arranged obliquely on the tool holder to form a cone-shaped distribution, but the height position on the tool holder is located below the breaking cone head, ensuring that when breaking the bag, the breaking cone head always contacts the bottom surface of the lifting bag first and forms a break, and then each cutting blade cuts the bottom surface of the lifting bag, thereby cutting multiple cracks distributed along the circumferential direction outside the break on the bottom surface of the lifting bag.

[0020] In this way, the high-efficiency bag breaking and unloading device provided by the utility model, when the lifting bag is lifted to the top of the unloading bin, the lifting bag is lowered normally. At this time, the jacking mechanism also rises vertically synchronously, and lifts the bag breaking mechanism upward, and moves towards the lifting bag; after a short time, the breaking cone head located at the top of the tool holder first contacts the bottom surface of the lifting bag, and pierces the bottom surface of the lifting bag, opening a break in the bottom surface of the lifting bag, and then, the jacking mechanism continues to lift, and each cutting blade subsequently contacts the bottom surface of the lifting bag, and uses the break as a reference to cut multiple circumferentially distributed cracks outside the break.

[0021] Compared with the prior art, the efficient bag breaking and unloading device provided by the utility model, when breaking the lifting bag, on the one hand, utilizes the lifting mechanism to lift and drive the bag breaking mechanism, thereby increasing the relative movement speed between the bag breaking mechanism and the lifting bag, thereby increasing the positive impact force between the two; on the other hand, it is the first to utilize the point-breaking effect of the breaking cone head on the bottom surface of the lifting bag to form a break on the bottom surface of the lifting bag, and then utilizes the cutting blade to cut outward along the break. The contact mode between the cutting blade and the lifting bag is improved from positive line-surface contact to oblique point-line contact, the blade pressure is greatly improved, and it is easier to cut a crack on the lifting bag, so that a single successful bag breaking can be achieved efficiently and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The present invention is a schematic diagram of the overall structure of a specific implementation method provided by the present invention.

[0024] Figure 2 for Figure 1 Side view of.

[0025] Figure 3 It is a schematic diagram of the specific structure of the jacking mechanism.

[0026] Figure 4 It is a schematic diagram of the specific structure of the bag breaking mechanism.

[0027] Figure 5 Schematic diagram of the connection structure between the tool holder and the support bracket.

[0028] Figure 6 It is a schematic diagram of the specific structure of the lower silo.

[0029] in, Figure 1 — Figure 6 middle:

[0030] Lower bin—1, lifting mechanism—2, bag breaking mechanism—3, first fastening hole—4, second fastening hole—5;

[0031] Observation window—11, mounting boss—12;

[0032] Lifting mounting plate—21, lifting cylinder—22, guide light axis—23, supporting bracket—24;

[0033] Tool holder—31, breaking cone head—32, cutting blade—33, mounting column—34, mounting baffle—35, clamping pressure plate—36, blanking hole—37. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Please refer to Figure 1 , Figure 2 , Figure 1 This is a schematic diagram of the overall structure of a specific implementation method provided by the utility model. Figure 2 for Figure 1 Side view of.

[0036] In a specific implementation manner provided by the present utility model, the efficient bag breaking and unloading device mainly includes a unloading bin 1, a lifting mechanism 2 and a bag breaking mechanism 3.

[0037] The lower bin 1 is arranged at the bottom of the frame of the bottom-breaking unpacking machine, and is mainly used to receive the powder contained in the lifting bag.

[0038] The lifting mechanism 2 is arranged in the lower material bin 1 , and the output end of the lifting mechanism 2 is connected to the bag breaking mechanism 3 , and is mainly used to drive the bag breaking mechanism 3 to perform vertical lifting movement in the lower material bin 1 .

[0039] The bag breaking mechanism 3 mainly includes a knife holder 31, a piercing cone head 32 and a cutting blade 33. Among them, the knife holder 31 is the main part of the bag breaking mechanism 3, which is mainly used to install the other parts of the bag breaking mechanism 3, and the bag breaking mechanism 3 as a whole is connected to the output end of the lifting mechanism 2 through the knife holder 31. The piercing cone head 32 is arranged at the top position of the knife holder 31, and is generally in the shape of a sharp cone or an arrow, and is mainly used to pierce the bottom surface of the lifting bag, thereby forming a dot-shaped or circular rupture on the bottom surface of the lifting bag. The cutting blades 33 are also arranged on the tool holder 31, and there are multiple cutting blades 33. Each cutting blade 33 is distributed along the circumferential direction of the tool holder 31, and each cutting blade 33 is arranged obliquely on the tool holder 31 to form a cone distribution, but the height position on the tool holder 31 is located below the breaking cone head 32, ensuring that when breaking the bag, the breaking cone head 32 always contacts the bottom surface of the lifting bag first and forms a break, and then each cutting blade 33 cuts the bottom surface of the lifting bag, thereby cutting multiple cracks distributed along the circumferential direction outside the break on the bottom surface of the lifting bag.

[0040] In this way, the efficient bag breaking and unloading device provided in this embodiment, when the lifting bag is lifted to the top of the unloading bin 1, the lifting bag is lowered normally. At this time, the lifting mechanism 2 also rises vertically synchronously, and lifts the bag breaking mechanism 3 upward, and moves towards the lifting bag; after a short time, the breaking cone head 32 located at the top of the tool holder 31 first contacts the bottom surface of the lifting bag, and pierces the bottom surface of the lifting bag, opening a break in the bottom surface of the lifting bag, and then, the lifting mechanism 2 continues to lift, and each cutting blade 33 subsequently contacts the bottom surface of the lifting bag, and uses the break as a reference to cut multiple circumferentially distributed cracks outside the break.

[0041] Compared with the prior art, the efficient bag breaking and unloading device provided in the present embodiment, when breaking the lifting bag, on the one hand, utilizes the lifting mechanism 2 to lift the bag breaking mechanism 3, thereby increasing the relative movement speed between the bag breaking mechanism 3 and the lifting bag, thereby increasing the positive impact force between the two; on the other hand, it first utilizes the point-breaking effect of the breaking cone head 32 on the bottom surface of the lifting bag to form a break on the bottom surface of the lifting bag, and then utilizes the cutting blade 33 to cut outward along the break. The contact mode between the cutting blade 33 and the lifting bag is improved from the positive line-surface contact to the oblique point-line contact, the blade pressure is greatly improved, and it is easier to cut a crack on the lifting bag, so that a single successful bag breaking can be achieved efficiently and reliably.

[0042] like Figure 4 , Figure 4 It is a schematic diagram of the specific structure of the bag breaking mechanism 3.

[0043] Considering that the tool in the prior art is an integral structure, when part of the blade is damaged or notched, the entire tool needs to be disassembled and replaced, resulting in high maintenance costs. In view of this, in a specific embodiment of the bag breaking mechanism 3, the bag breaking mechanism 3 also includes a mounting column 34. Specifically, the mounting column 34 is erected at the center position of the tool holder 31 and has a preset height, and the broken cone head 32 is specifically arranged at the top position of the mounting column 34, and a detachable connection is formed between the broken cone head 32 and the mounting column 34. For example, the bottom of the broken cone head 32 forms a threaded connection, a card plug-in connection, etc. with the top of the mounting column 34. With such a configuration, when the blade of the broken cone head 32 is damaged, it is only necessary to remove the broken cone head 32 from the mounting column 34 and then reinstall a new broken cone head 32, without replacing the entire bag breaking mechanism 3.

[0044] Similarly, if the blade of the cutting blade 33 is damaged, it also needs to be replaced. In view of this, an installation baffle 35 is also provided in this embodiment. Specifically, the installation baffle 35 is connected between the installation column 34 and the tool holder 31, and multiple pieces are provided at the same time, and each installation baffle 35 is evenly or unevenly distributed along the circumferential direction of the installation column 34. Each installation baffle 35 is in the shape of a triangle or a trapezoid as a whole, such as a right triangle, and one of the right angles is connected to the top surface of the tool holder 31, and the other right angle is connected to the installation column 34, and the cutting blade 33 is arranged on the hypotenuse, and multiple cutting blades 33 form a cone. At the same time, each cutting blade 33 is detachably connected to each installation baffle 35, such as a threaded connection, a snap-on connection, etc. With such a configuration, when the blade of a certain cutting blade 33 is damaged, it is only necessary to remove the cutting blade 33 from the corresponding installation baffle 35, and then reinstall a new cutting blade 33, without replacing all the cutting blades 33. Generally, eight mounting baffles 35 are evenly distributed along the circumference of the mounting column 34 , and correspondingly, eight cutting blades 33 are also evenly distributed on the blade holder 31 .

[0045] In order to improve the installation stability of the cutting blade 33 on the mounting baffle 35, a clamping plate 36 is added in this embodiment. Specifically, the clamping plate 36 is arranged on the side of the mounting baffle 35 and forms a detachable connection with the mounting baffle 35. At the same time, the cutting blade 33 is closely arranged on the side of the mounting baffle 35, which is equivalent to the mounting baffle 35 and the clamping plate 36 clamping each other, thereby clamping and fixing the cutting blade 33.

[0046] Furthermore, in order to facilitate the disassembly and assembly operation of the clamping plate 36 on the mounting baffle 35 and adjust the clamping force of the clamping plate 36 on the cutting blade 33, in this embodiment, a first fastening hole 4 is provided at the corresponding position on the mounting baffle 35 and the clamping plate 36. Specifically, the first fastening hole 4 is mainly used to cooperate with a fastener such as a bolt, so that the mounting baffle 35 and the clamping plate 36 are tightened and fixed to each other by passing the fastener through the first fastening hole 4 on the mounting baffle 35 and the clamping plate 36, so that the mounting baffle 35 and the clamping plate 36 clamp the cutting blade 33 in the middle; and by screwing the fastener clockwise or counterclockwise, the clamping force of the mounting baffle 35 and the clamping plate 36 on the cutting blade 33 can also be adjusted by the force between the threads. When the cutting blade 33 needs to be replaced, the fastener only needs to be completely screwed out of the first fastening hole 4.

[0047] Similarly, to further enhance the connection stability among the mounting baffle 35, the clamping pressing plate 36, and the cutting blade 33, in this embodiment, second fastening holes 5 are also provided at corresponding positions on the mounting baffle 35, the clamping pressing plate 36, and the cutting blade 33. Specifically, the function of the second fastening hole 5 is the same as that of the above-mentioned first fastening hole 4, and it is also used to cooperate with fasteners such as bolts to tightly fasten and fix the mounting baffle 35, the clamping pressing plate 36, and the cutting blade 33 to each other.

[0048] In a specific embodiment of the tool rest 31, to facilitate the stable support of the mounting column 34 and ensure that the powder can smoothly pass through the bag-breaking mechanism 3 and fall into the feeding bin 1 after the lifting bag is broken, in this embodiment, the tool rest 31 is integrally in a frame structure, such as a rectangular frame structure or a circular frame structure, etc., and a plurality of connecting rods are connected between the outer ring and the inner ring of the tool rest 31 to form a truss structure with vertical and horizontal intersections for the tool rest 31, such as a "field" - shaped structure, etc., so that the mounting column 34 can be conveniently arranged at the center position of the truss structure; at the same time, the truss structure of the tool rest 31 makes the surface of the tool rest 31 present a plurality of material dropping holes 37, so that after the lifting bag is broken, the powder can fall into the feeding bin 1 through each material dropping hole 37.

[0049] As Figure 3 shown, Figure 3 is a schematic structural diagram of the jacking mechanism 2.

[0050] In a specific embodiment of the jacking mechanism 2, the jacking mechanism 2 mainly includes a jacking mounting plate 21, a jacking cylinder 22, a guiding optical axis 23, and a support bracket 24. Among them, the jacking mounting plate 21 is connected to the inner wall of the feeding bin 1, the jacking cylinder 22 is arranged on the jacking mounting plate 21, generally at the bottom of the jacking mounting plate 21, and penetrates through the bin wall of the feeding bin 1, with the cylinder body exposed outside, and the piston rod passes through the jacking mounting plate 21 and extends into the feeding bin 1, capable of performing vertical lifting and telescopic movement in the feeding bin 1. The guiding optical axis 23 is arranged on the jacking mounting plate 21, generally multiple can be set simultaneously, and also passes through the jacking mounting plate 21 and extends into the feeding bin 1, and is parallel to the piston rod of the jacking cylinder 22. The support bracket 24 is connected to the output end of the jacking cylinder 22, generally connected to the top end of the piston rod of the jacking cylinder 22, and is simultaneously connected to the top ends of each guiding optical axis 23 to form a guiding effect on the movement of the support bracket 24 by the guiding optical axis 23 when the jacking cylinder 22 drives the support bracket 24 to perform vertical lifting movement. At the same time, the support bracket 24 is connected to the tool rest 31 in the bag-breaking mechanism 3 to drive the tool rest 31 to perform synchronous vertical lifting movement. With such a setting, when the piston rod of the jacking cylinder 22 extends upward, it can drive the bag-breaking mechanism 3 to perform synchronous upward movement; when the piston rod of the jacking cylinder 22 retracts downward, it can drive the bag-breaking mechanism 3 to perform synchronous downward movement.

[0051] In addition, in order to prevent the powder from accumulating on the jacking mounting plate 21, the present embodiment further provides a folding protective cover between the top surface of the jacking mounting plate 21 and the bottom surface of the support bracket 24, so as to shield the jacking mounting plate 21 through the folding protective cover. Specifically, the top of the folding protective cover is connected to the bottom surface of the support bracket 24, and the bottom is connected to the top surface of the jacking mounting plate 21, and can be folded vertically, so as not to affect the normal vertical lifting movement of the support bracket 24, and can also protect the top surface of the jacking mounting plate 21, preventing the powder from accumulating on the top surface of the jacking mounting plate 21.

[0052] like Figure 5 As shown, Figure 5 It is a schematic diagram of the connection structure between the tool holder 31 and the support bracket 24.

[0053] Furthermore, in order to facilitate the connection between the support bracket 24 and the tool holder 31, in this embodiment, a plurality of extension rods are connected to the inner wall of the support bracket 24, so as to be connected to the outer wall of the tool holder 31 through the ends of the extension rods, such as through flanges.

[0054] like Figure 6 As shown, Figure 6 It is a schematic diagram of the specific structure of the lower silo 1.

[0055] In a specific embodiment of the lower silo 1, in order to facilitate the stable installation of the lifting mechanism 2, a mounting boss 12 is provided on the inner wall of the lower silo 1 in this embodiment, so that the lifting mounting plate 21 in the lifting mechanism 2 is connected to the mounting boss 12, and then the entire lifting mechanism 2 is installed on the mounting boss 12. Generally, two mounting bosses 12 are provided at the same time, and are respectively located on the inner walls of both sides of the lower silo 1, so that two lifting mechanisms 2 are installed at the same time to form a stable supporting force for the bag breaking mechanism 3.

[0056] In addition, in order to enable the staff to understand the unloading situation of the lifting bag in real time, the present embodiment further provides an observation window 11 on the side wall of the unloading bin 1 , so that the staff can observe the unloading situation of the lifting bag through the observation window 11 .

[0057] The present embodiment also provides a bottom-breaking bag unpacking machine, which mainly includes a frame and a bag breaking and unloading device arranged on the frame. Since the bag breaking and unloading device adopts all the technical solutions of the above-mentioned embodiments of the high-efficiency bag breaking and unloading device, the high-efficiency bag breaking and unloading device provided in the present embodiment also has all the technical effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0058] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An efficient bag breaking and unloading device, comprising a unloading bin (1) arranged at the bottom of a frame of a bottom breaking bag unpacking machine, characterized in that: It also includes a lifting mechanism (2) disposed in the lower material bin (1), and a bag breaking mechanism (3) connected to the output end of the lifting mechanism (2), wherein the lifting mechanism (2) is used to drive the bag breaking mechanism (3) to perform vertical lifting movement; The bag breaking mechanism (3) comprises a tool holder (31) connected to the output end of the lifting mechanism (2), a rupture cone head (32) arranged at the top of the tool holder (31), and a plurality of cutting blades (33) distributed in a cone shape along the circumference of the tool holder (31), each of the cutting blades (33) being located below the rupture cone head (32), the rupture cone head (32) being used to pierce the bottom surface of the lifting bag, and the cutting blades (33) being used to cut a plurality of cracks distributed along the circumference outside the rupture of the bottom surface of the lifting bag.

2. The high-efficiency bag breaking and unloading device according to claim 1 is characterized in that: The bag breaking mechanism (3) further comprises a mounting column (34) erected at the center of the knife holder (31), and the breaking cone head (32) is detachably arranged on the top end of the mounting column (34).

3. The high-efficiency bag breaking and unloading device according to claim 2 is characterized in that: The bag breaking mechanism (3) further comprises a plurality of mounting baffles (35) connected between the mounting column (34) and the blade holder (31), wherein the mounting baffles (35) are distributed along the circumference of the mounting column (34), and the cutting blades (33) are detachably connected to the mounting baffles (35).

4. The high-efficiency bag breaking and unloading device according to claim 3 is characterized in that: The bag breaking mechanism (3) further comprises a clamping plate (36) detachably arranged on the side of the mounting baffle (35) so as to clamp and fix the cutting blade (33) between the mounting baffle (35) and the clamping plate (36).

5. The high-efficiency bag breaking and unloading device according to claim 4 is characterized in that: The mounting baffle (35) and the clamping plate (36) are both provided with first fastening holes (4) at corresponding positions, so that fasteners can pass through the first fastening holes (4) to tighten and fix the mounting baffle (35) and the clamping plate (36).

6. The high-efficiency bag breaking and unloading device according to claim 5 is characterized in that: The mounting baffle (35), the clamping plate (36) and the cutting blade (33) are each provided with second fastening holes (5) at corresponding positions, so that fasteners can pass through each of the second fastening holes (5) to tighten and fix the mounting baffle (35), the clamping plate (36) and the cutting blade (33).

7. The high-efficiency bag breaking and unloading device according to claim 1 is characterized in that: The surface of the knife holder (31) is provided with a plurality of drop holes (37) for powder to drop.

8. The efficient bag breaking and discharging device according to any one of claims 1 to 7, characterized in that: The lifting mechanism (2) comprises a lifting mounting plate (21) connected to the inner wall of the lower material bin (1), a lifting cylinder (22) arranged on the lifting mounting plate (21), a guide light axis (23) arranged on the lifting mounting plate (21), and a support bracket (24) connected to the output end of the lifting cylinder (22) and the guide light axis (23), wherein the lifting cylinder (22) is used to drive the support bracket (24) to perform vertical lifting movement, and the support bracket (24) is connected to the tool holder (31).

9. The high-efficiency bag breaking and unloading device according to claim 1 is characterized in that: An observation window (11) for observing the material discharge situation is provided on the side wall of the material discharge bin (1); and a mounting boss (12) for mounting the lifting mechanism (2) is provided on the inner wall of the material discharge bin (1).

10. A bottom-breaking bag unpacking machine, comprising a frame and a bag-breaking and unloading device arranged on the frame, characterized in that: The bag breaking and discharging device is specifically the high-efficiency bag breaking and discharging device as described in any one of claims 1-9.

Images