Fully-automatic bulk bag unpacking machine

Abstract

A fully-automatic bulk bag unpacking machine, comprising a housing (1). A clamping station, a bag-breaking and material-storing station, and a bag-extruding and discharging station are sequentially arranged in the housing (1) in the conveying direction of bulk bags (2). A feeding unit (11) is used for conveying the bulk bags (2) to the clamping station; a transferring and clamping unit is provided at the clamping station; and the transferring and clamping unit can grab the bulk bags (2) moved to the clamping station and can move the bulk bags (2) to the bag-breaking and material-storing station or the bag-extruding and discharging station. A bag-breaking mechanism (12), a bag-shaking mechanism (13), and a material-storing mechanism (14) are provided at the bag-breaking and material-storing station; the bag-breaking mechanism (12) is used for cutting and breaking the bulk bags (2) moved to the bag-breaking and material-storing station so as to enable materials in the bulk bags (2) to flow out; the bag-shaking mechanism (13) is used for shaking the broken bulk bags (2) so as to enable the materials in the bulk bags (2) to be completely discharged; and the material-storing mechanism (14) is used for collecting the materials flowing out of the bulk bags (2). A bag-extruding mechanism (15) is provided at the bag-extruding and discharging station; and the bag-extruding mechanism (15) is used for collecting and storing packing bags that are loosened and fall off from the transferring and clamping unit and outputting the packing bags outward. The fully-automatic bulk bag unpacking machine has the advantage of high working efficiency.

Description

Fully automatic bag unpacking machine

[0001] This invention claims priority to Chinese Patent Application No. 202410917069.4, filed with the Chinese Patent Office on July 10, 2024, entitled "Fully Automatic Bag Unpacking Machine", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of unpacking equipment technology, specifically to a fully automatic bag unpacking machine. Background Technology

[0003] Bags are common flexible packaging containers used for transporting bulk materials. They are widely used in packaging various powdery, granular, and lumpy items such as chemicals, building materials, plastics, and mineral products. However, currently, the unpacking and unloading of raw material bags takes place in an unsealed operating environment, making the operation complex, labor-intensive, and increasing the workload for workers. Therefore, there is an urgent need to invent a device that is highly efficient in unpacking and environmentally friendly. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic bag unpacking machine that is highly efficient and environmentally friendly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fully automatic bag unpacking machine, comprising: a housing, within which, in the direction of bag conveying, are sequentially arranged a clamping station, a bag-breaking and storage station, and a bag-squeezing and discharging station; the feeding unit is used to convey the bag to the clamping station; a transfer clamping unit is provided at the clamping station, which can grasp the bag moved to the clamping station and transfer the bag to the bag-breaking and storage station or the bag-squeezing and discharging station; at the bag-breaking and storage station... The system includes a bag-breaking mechanism, a bag-shaking mechanism, and a material storage mechanism. The bag-breaking mechanism is used to cut open the bags that have been moved to the bag-breaking and material storage station to allow the material inside the bags to flow out. The bag-shaking mechanism is used to shake the bags after they have been broken to remove the material inside. The material storage mechanism is used to collect the material flowing out of the bags. A bag-squeezing mechanism is provided at the bag-squeezing and discharging station. The bag-squeezing mechanism is used to collect and discharge the packaging bags that have been released from the transfer clamping unit.

[0006] Furthermore, in the aforementioned fully automatic bag unpacking machine, the feeding unit includes a feeding frame that extends from the outside of the housing to the clamping station inside the housing. Several conveying rollers are sequentially and spaced apart in the feeding frame toward the clamping station. The conveying rollers together form a conveying roller track for carrying and conveying bags. The shaft ends of the conveying rollers on the same side are connected by a first sprocket and chain assembly. One of the conveying rollers is driven to rotate by a feeding reduction motor.

[0007] Furthermore, in the aforementioned fully automatic bag unpacking machine, the structure of the transfer clamping unit includes: a track, a transfer trolley, a lifting mechanism, and a gripping mechanism. The track spans the clamping station, the bag breaking and storage station, and the bag extrusion and discharge station. The transfer trolley is mounted on the track and can move along the track. The gripping mechanism is installed on the transfer trolley via the lifting mechanism. The gripping mechanism can grip or release the bags that have been moved to the clamping station by the feeding unit. The lifting mechanism can drive the gripping mechanism and the bags gripped by the gripping mechanism to rise or fall.

[0008] Furthermore, in the aforementioned fully automatic bag unpacking machine, the structure of the transfer trolley includes: a frame, with two first rotating shafts supported parallel to each other at both ends of the frame, and wheels fixedly mounted on both sides of each first rotating shaft. The wheels are located in a track, and the frame moves along the track via the wheels. A first transmission gear is fixedly mounted on the shaft of one of the first rotating shafts. A transfer reduction motor is fixedly installed on the frame, and a first drive gear is fixedly mounted on the output shaft of the transfer reduction motor. The first drive gear meshes with the first transmission gear, and the transfer reduction motor drives the first transmission gear to rotate through the first drive gear, thereby synchronously driving the corresponding first rotating shaft and wheels to rotate, thus driving the frame to move along the track in the housing.

[0009] Furthermore, in the aforementioned fully automatic bag unpacking machine, the lifting mechanism includes a folding frame, which comprises several foldable supports. Each foldable support is formed by two supports hinged together in an X-shape. The foldable supports are arranged sequentially from top to bottom. The upper ends of the two supports of each foldable support are hinged to the lower ends of the two supports of the adjacent foldable support above it, and the lower ends of the two supports of each foldable support are hinged to the upper ends of the two supports of the adjacent foldable support below it, thus forming a scissor-type folding frame. In the folding frame, one of the upper supports of the two supports of the uppermost foldable support is hinged to the frame of the transfer trolley via an upper pivot, and the other support has an upper connecting shaft. Upper rollers are movably sleeved on both sides of the upper connecting shaft, and the upper rollers on both sides of the upper connecting shaft are slidably mounted on a frame-type upper limit track fixed to the frame of the transfer trolley. In the folding frame, one of the two lower supports of the lowest foldable bracket is hinged to one end of the gripping mechanism via a lower pivot shaft. The other support has a lower connecting shaft at its lower end. Lower rollers are movably sleeved on both sides of the lower connecting shaft, and the lower rollers on both sides of the lower connecting shaft are slidably set in a frame-type lower limit track fixed on the gripping mechanism. A lifting reduction motor and a pivot shaft are installed on the frame of the transfer trolley. The lifting reduction motor is fixedly installed on the frame, and the pivot shaft is movably supported on the frame. A second drive gear is fixedly mounted on the output shaft of the lifting reduction motor, and a second transmission gear is fixedly mounted on the pivot shaft. A transmission chain is wound around the second drive gear and the second transmission gear. A traction wheel is also fixedly mounted on the pivot shaft, and a steel wire rope is wound around the traction wheel. One end of the steel wire rope is fixed to the traction wheel, and the other end of the steel wire rope is connected to any support of any foldable bracket in the folding frame.

[0010] Furthermore, in the aforementioned fully automatic bag unpacking machine, the gripping mechanism comprises: a gripping bracket, in which several gripping units are supported side-by-side at left-right intervals; each gripping unit includes: a left connecting shaft and a right connecting shaft supported side-by-side at left-right intervals in the gripping bracket; several left gripping hooks are fixedly installed axially at intervals on the left connecting shaft, and several right gripping hooks are fixedly installed axially at intervals on the right connecting shaft; a first connecting plate is fixed on the left connecting shaft of each gripping unit, the first connecting plates of all gripping units are parallel, the outer ends of all first connecting plates are hinged to the same first connecting rod, a first mounting plate is fixed on the first connecting rod, the piston rod of the first cylinder is hinged to the first mounting plate, and the cylinder body of the first cylinder is hinged to the gripping bracket; a second connecting plate is fixed on the right connecting shaft of each gripping unit. The second connecting plates with gripping units are parallel to each other, and the outer ends of all the second connecting plates are hinged to the same second connecting rod. A second mounting plate is fixed on the second connecting rod. The piston rod of the second cylinder is hinged to the second mounting plate, and the cylinder body of the second cylinder is hinged to the gripping bracket. The first cylinder can simultaneously drive the left gripping hooks of all gripping units to flip down and to the right out of the gripping bracket through the first mounting plate, the first connecting rod, and each first connecting plate. The second cylinder can simultaneously drive the right gripping hooks of all gripping units to flip down and to the left out of the gripping bracket through the second mounting plate, the second connecting rod, and each second connecting plate. When all the left and right gripping hooks flip down and out of the gripping bracket at the same time, each left and right gripping hook can cooperate with each other to insert and grip the bag. When all the left and right gripping hooks flip up and into the gripping bracket at the same time, the left and right gripping hooks can be pulled out from the bag to release the bag.

[0011] Furthermore, in the aforementioned fully automatic bag unpacking machine, the structure of the bag-shaking mechanism includes: a fixed frame fixedly installed in the housing at the bag-breaking and storage station; a shaking frame is provided in the fixed frame, one end of the shaking frame is a hinged end and the other end is a free end; the hinged end of the shaking frame is hinged to the fixed frame via a rotating shaft; a roller shaft is provided at the free end of the shaking frame; a cam shaft is movably supported in the fixed frame below the free end of the shaking frame; the cam shaft is driven to rotate by a bag-shaking reduction motor installed on the fixed frame; several cams corresponding upward to the roller shaft at the free end of the shaking frame are fixedly mounted on the cam shaft; the shaking frame, under its own weight, always tends to rotate downward around the rotating shaft, so that the roller shaft at its free end always contacts and presses downward on the curved surface of the cam; when the bag-shaking reduction motor drives the cam to rotate through the cam shaft, the cam can drive the shaking frame to swing up and down, so that the shaking frame can quickly shake the bags moved to the bag-breaking and storage station by the transfer clamping unit; the storage mechanism is a discharge hopper located directly below the bag-shaking mechanism.

[0012] Furthermore, in the aforementioned fully automatic bag unpacking machine, the bag-breaking mechanism comprises: two opposing slide rails, each spanning the bag-breaking storage station; the two slide rails are arranged on both sides below the bag-shaking mechanism; both slide rails are fixedly installed in the housing; a slider is slidably mounted on each slide rail; the two sliders are connected by a connecting rod; the connecting rod and the two sliders constitute a sliding base; two support plates are fixedly mounted on the connecting rod; the two support plates are arranged on both sides of the bag-shaking mechanism; and the bag to be broken, located above the bag-shaking mechanism, is movably supported between the two support plates. The rotating shaft has several blades installed at axial intervals. A bag-breaking motor is installed on one of the support plates. The output shaft of the bag-breaking motor is connected to the bag-breaking rotating shaft to drive the bag-breaking rotating shaft and the blades to rotate at high speed. A bag-breaking telescopic cylinder is also installed in the housing at the bag-breaking storage station. The piston rod of the bag-breaking telescopic cylinder is connected to the sliding base. When the bag-breaking motor drives the bag-breaking rotating shaft and the blades to rotate at high speed, the piston rod of the bag-breaking telescopic cylinder extends to drive the blades through the transfer clamping unit to the bag at the bag-breaking storage station, thereby cutting the bag.

[0013] Furthermore, in the aforementioned fully automatic bag unpacking machine, the extrusion mechanism includes a screw extruder installed at the bag extrusion outlet station. The inlet end of the screw extruder is located inside the housing, and its outlet end extends outward from the housing. A guide hopper is installed at the inlet end of the screw extruder to guide the packaging bags released from the transfer clamping unit into the screw extruder.

[0014] Furthermore, in the aforementioned fully automatic bag unpacking machine: an exhaust port is provided on the housing, and a pulse jet blowing device is provided at the exhaust port. The pulse jet blowing device includes: a housing with an open bottom, the open bottom of which is aligned with and covers the exhaust port so that the interior of the housing is connected to the interior of the housing through the exhaust port; a perforated plate is provided inside the housing, with several mounting holes on the perforated plate, which divides the interior of the housing into an upper chamber and a lower chamber; a filter bag is installed in each mounting hole, with the bag opening facing upwards and the bag body placed in the lower chamber; the filter bags are arranged in several rows; several blowing pipes are provided in the upper chamber, each blowing pipe corresponding to a row of filter bags; several nozzles are provided on each blowing pipe, and each nozzle on each blowing pipe corresponds one-to-one with the opening of the corresponding filter bag; all blowing pipes are connected to a high-pressure air source; an outlet is provided on the housing; a dust removal fan is provided in the upper chamber of the housing, and the outlet end of the dust removal fan extends out of the housing from the housing outlet.

[0015] Through the implementation of the above technical solution, the beneficial effects of the present invention are: it can realize continuous unpacking of bags, with high unpacking efficiency, high equipment operation stability, and the unpacking process is environmentally friendly and will not pollute the environment. Attached Figure Description

[0016] Figure 1 is a cross-sectional schematic diagram of the fully automatic bag unpacking machine of the present invention.

[0017] Figure 2 is a schematic diagram of the feeding unit in the left view of Figure 1.

[0018] Figure 3 is a schematic diagram of the transfer clamp unit.

[0019] Figure 4 is a schematic diagram showing the connection relationship between the rotating shaft, traction wheel, wire rope and lifting mechanism support in the left view of Figure 3.

[0020] Figure 5 is a schematic diagram of the structure from the top view of Figure 3.

[0021] Figure 6 is a schematic diagram of the gripping mechanism.

[0022] Figure 7 is a schematic diagram of the structure from the top view of Figure 6.

[0023] Figure 8 is a schematic diagram showing the connection relationship between the right grab hook, the right connecting shaft, the second connecting rod, the second mounting plate, and the second cylinder.

[0024] Figure 9 is a schematic diagram showing the connection relationship between the left grab hook, the left connecting shaft, the first connecting rod, the first mounting plate, and the first cylinder.

[0025] Figure 10 is a schematic diagram of the bag breaking mechanism, bag shaking mechanism and material storage mechanism.

[0026] Figure 11 is a schematic diagram of the structure from the top view of Figure 10.

[0027] Figure 12 is a schematic diagram of the structure in the rear view direction of Figure 10.

[0028] Figure 13 is a schematic diagram showing the relative positions of the connecting rod, support plate, bag-breaking shaft and blade in the bag-breaking mechanism and the shaking frame in the bag-shaking mechanism in the left view of Figure 10.

[0029] Figure 14 is a schematic diagram of the pulse jet device.

[0030] Figure 15 is a schematic diagram of the extrusion bag mechanism. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Furthermore, to better explain this invention, the four directions of "front," "rear," "left," and "right" are defined, with the right side of the paper in Figure 1 as "front," the left side of the paper in Figure 1 as "rear," the upper side of the paper in Figure 3 as "left," and the lower side of the paper in Figure 3 as "right."

[0032] As shown in Figure 1, the fully automatic bag unpacking machine includes: a housing 1 and a feeding unit 11. Inside the housing 1, following the conveying direction of the bag 2, there are sequentially a clamping station, a bag-breaking and storage station, and a bag-squeezing and discharging station. The feeding unit 11 is used to convey the bag 2 from outside the housing 1 to the clamping station inside the housing 1. The clamping station is equipped with a transfer clamping unit, which can grip the bag 2 moved to the clamping station and transfer the bag 2 to either the bag-breaking and storage station or the bag-squeezing and discharging station. The system includes a bag-breaking mechanism 12, a bag-shaking mechanism 13, and a material storage mechanism 14. The bag-breaking mechanism is used to cut open the bag 2 that has been moved to the bag-breaking and material storage station to allow the material inside the bag 2 to flow out. The bag-shaking mechanism is used to shake the bag after it has been broken to clean the material inside the bag 2. The material storage mechanism is used to collect the material flowing out of the bag 2. A bag-squeezing mechanism 15 is provided at the bag-squeezing and material discharge station. The bag-squeezing mechanism 15 is used to collect and discharge the packaging bags that have been released from the transfer clamping unit.

[0033] In this embodiment, as shown in Figure 2, the feeding unit 11 includes a feeding frame 3, which extends from the outside of the housing 1 to the clamping station inside the housing 1. Several conveying rollers 4 are sequentially and spaced apart in the feeding frame 3 towards the clamping station. These conveying rollers 4 together form a conveying roller track for carrying and conveying the bags 2. The shaft ends of each conveying roller 4 on the same side are connected by a first sprocket and chain assembly 5. The first sprocket and chain assembly includes sprockets installed on the shaft ends of each conveying roller 4 on the same side, and the sprockets of adjacent conveying rollers are connected by chains. One conveying roller 4 is driven to rotate by a feeding reduction motor 6. The feeding reduction motor 6 drives each conveying roller 4 to rotate simultaneously through the first sprocket and chain assembly, thereby driving the conveying roller track formed by the conveying rollers 4 to convey the stacked multi-layered bags forward to the clamping station inside the housing 1. This feeding unit has fewer components, a simpler structure, is easier to assemble, and has a lower cost, thus reducing the production and usage costs for enterprises.

[0034] In this embodiment, as shown in Figures 3, 4, and 5, the structure of the transfer clamping unit includes: a track 7, a transfer trolley 8, a lifting mechanism 9, and a gripping mechanism 10. There are two tracks 7, which are respectively arranged and installed at the left and right ends of the housing 1. The track 7 spans the clamping station, the bag breaking and storage station, and the bag squeezing and discharging station. The transfer trolley 8 is mounted on the track 7 and can move along the track 7. The gripping mechanism 10 is installed on the transfer trolley 8 through the lifting mechanism 9. The gripping mechanism 10 can grip or release the bag 2 that has been moved to the clamping station by the feeding unit 11. The lifting mechanism 9 can drive the gripping mechanism 10 and the bag 2 gripped by the gripping mechanism 10 to rise or fall.

[0035] The transfer trolley 8 includes a frame 81, with a first rotating shaft 82 supported at the front and rear ends of the frame 81, the two first rotating shafts 82 being parallel to each other. Wheels 83 are fixedly mounted on both sides of the shaft ends of each first rotating shaft 82, and all wheels 82 together support the frame 81. The wheel 82 on the left side is located in the track 7 at the left end of the housing 1, and the wheel 82 on the right side is located in the track 7 at the right end of the housing 1. The frame 81 moves along the track 7 via the wheels 83. A first transmission gear is fixedly mounted on the shaft of one of the first rotating shafts. In this embodiment, the first transmission gear is mounted and fixed on the shaft of the first rotating shaft 82 located at the front. A... The transfer trolley is equipped with a transfer reduction motor 85, on which a first drive gear 86 is fixedly mounted. The first drive gear 86 meshes with a first transmission gear. The transfer reduction motor 85 drives the first transmission gear to rotate through the first drive gear 86, thereby synchronously driving the corresponding first rotating shaft 82 and the wheel 83 to rotate, thus driving the frame 81 to travel along the track 7 in the housing 1. In actual operation, when the transfer reduction motor 85 rotates forward, it can drive the frame 81 to move forward along the track 7 in the housing 1; when the transfer reduction motor 85 rotates in reverse, it can drive the frame 81 to move backward along the track 7 in the housing 1. The above-mentioned transfer trolley has a simple structure and is easy to install and maintain.

[0036] In this embodiment, the lifting mechanism includes a folding frame, which comprises several foldable supports. In practical applications, the number of foldable supports can be freely selected according to the required lifting and lowering height. In this embodiment, there are four foldable supports. Each foldable support is formed by two supports 91 hinged in an X-shape. The foldable supports are arranged sequentially from top to bottom. The upper ends of the two supports 91 of each foldable support are hinged to the lower ends of the two supports 91 of the adjacent foldable support above it, and the lower ends of the two supports 91 of each foldable support are hinged to the upper ends of the two supports 91 of the adjacent foldable support below it. This allows all the foldable supports to collectively form a scissor-folding structure for the folding frame. In the folding frame, the uppermost foldable support has its front support hinged to the frame 81 of the transfer trolley 8 via an upper pivot 92. The upper end of the rear support has an upper connecting shaft 93. Upper rollers 94 are movably fitted onto the ends of the upper connecting shaft 93 on both sides. The upper rollers 94 on both sides of the upper connecting shaft 93 are slidably positioned within a frame-type upper limit track 95 fixed to the transfer trolley frame 81. The upper rollers 94 are placed within the frame-type upper limit track 95 and can move along it. The uppermost foldable support in the folding frame... The lower end of the front bracket of the lower foldable support is hinged to one end of the gripping mechanism 10 via a lower pivot 96. The lower end of the rear bracket is provided with a lower connecting shaft 97. Lower rollers 98 are movably sleeved on both sides of the lower connecting shaft 97. The lower rollers 98 on both sides of the lower connecting shaft 97 are slidably disposed in a frame-type lower limit track 99 fixed on the gripping mechanism 10. The lower rollers 98 are placed in the frame-type lower limit track 99 and can move along the frame-type lower limit track 99. A lifting reduction motor 910 and a pivot 911 are provided on the frame 81 of the transfer trolley 8. The lifting reduction motor 910 is fixedly installed. On the frame 81, the rotating shaft 911 is movably supported on the frame 81 in a left-right direction. A second drive gear 912 is fixedly mounted on the output shaft of the lifting reduction motor 910. A second transmission gear 913 is fixedly mounted on the rotating shaft 911. A transmission chain 914 is wound around the second drive gear 912 and the second transmission gear 913. A traction wheel 915 is also fixedly mounted on the rotating shaft 911. A steel wire rope 916 is wound on the traction wheel 915. One end of the steel wire rope 916 is fixed to the traction wheel 915, and the other end of the steel wire rope 916 is connected to any bracket 91 of any foldable bracket in the folding frame.

[0037] When the gripping mechanism needs to be moved upward, the lifting reduction motor 910 rotates forward, driving the second transmission gear 913 to rotate through the second drive gear 912 and transmission chain 914, which in turn drives the rotating shaft 911 and traction wheel 915 to rotate forward. When the traction wheel 915 rotates forward, it will wind and retract the wire rope 916. During the retraction process of the wire rope 916, the wire rope 916 will drive the brackets 91 of the folding frame to fold and retract, thereby driving the gripping mechanism 10 to move upward, and simultaneously driving the bag 2 gripped by the gripping mechanism 10 to move upward.

[0038] When the gripping mechanism needs to be moved downward, the lifting reduction motor 910 reverses, driving the second transmission gear 913 to rotate through the second drive gear 912 and transmission chain 914, which in turn drives the rotating shaft 911 and traction wheel 915 to reverse. When the traction wheel 915 reverses, it will release and lower the wire rope 916. During the process of lowering the wire rope 916, the gripping mechanism 10 will move downward under its own weight, which in turn drives the bag 2 gripped by the gripping mechanism 10 to move downward.

[0039] In the lifting mechanism of the transfer clamp unit of the present invention, a steel wire rope 916 is used to pull the folding frame upward or lower it. Since the steel wire rope 916 is flexible and the folding frame can be folded freely in the upward direction, when the bag shaking mechanism 13 shakes the bag grabbed by the gripping mechanism 10, the up and down shaking of the gripping mechanism 13 will not affect the transfer trolley 8. This can effectively prevent the transfer trolley 8 from shaking and vibrating during the bag shaking process, thereby ensuring the stability and safety of use.

[0040] In this embodiment, as shown in Figures 6, 7, 8, and 9, the gripping mechanism 10 includes a gripping support 101, in which a plurality of gripping units are supported side-by-side at left-right intervals. Each gripping unit includes a left connecting shaft 102 and a right connecting shaft 103 supported side-by-side at left-right intervals in the gripping support 101. A plurality of left gripping hooks 104 are fixedly installed on the left connecting shaft 102 at axial intervals, and a plurality of right gripping hooks 105 are fixedly installed on the right connecting shaft 103 at axial intervals. Each gripping unit has a first connecting plate 106 fixed on its 02. All the first connecting plates 106 of the gripping units are parallel, and the outer ends of all the first connecting plates 106 are hinged to the same first connecting rod 107. A first mounting plate 108 is fixed on the first connecting rod 107. The piston rod of the first cylinder 109 is hinged to the first mounting plate 108, and the cylinder body of the first cylinder 109 is hinged to the gripping bracket 101. A second connecting plate 110 is fixed on the right connecting shaft 103 of each gripping unit. All the second connecting plates 110 of the gripping units are parallel, and all the second connecting plates 110 are hinged to the same first connecting rod 107. The outer ends of plates 110 are all hinged to the same second connecting rod 111. A second mounting plate 112 is fixed on the second connecting rod 111. The piston rod of the second cylinder 113 is hinged to the second mounting plate 112, and the cylinder body of the second cylinder 113 is hinged to the gripping bracket 101. The first cylinder 109 can simultaneously drive the left gripping hooks 104 of all gripping units to flip down and to the right out of the gripping bracket 101 through the first mounting plate 108, the first connecting rod 107, and each first connecting plate 106. The second cylinder 113 can be driven by the second mounting plate 112 and the second connecting rod 112 to flip down and to the right out of the gripping bracket 101. 111 and each of the second connecting plates 110 simultaneously drive the right hooks 105 of all gripping units to flip down and to the left out of the gripping bracket 101. When all the left hooks 104 and all the right hooks 105 flip down and out of the gripping bracket 101 at the same time, each left hook 104 and each right hook 105 can cooperate to insert and grip the bag 2. When all the left hooks 104 and all the right hooks 105 flip up and into the gripping bracket 101 at the same time, the left hooks 104 and right hooks 105 can be pulled out from the bag 2 to release the bag 2. The above gripping mechanism has a simple structure and is easy to operate.

[0041] In this embodiment, as shown in Figures 10, 11, 12, and 13, the structure of the bag-shaking mechanism 13 includes: a fixed frame 138 fixedly installed in the housing 1 at the bag-breaking and storage station; a shaking frame 134 provided in the fixed frame 138; the shaking frame 134 having a material drop gap to facilitate the material inside the bag 2 falling into the storage mechanism 14 when the bag is shaken after breaking; the front end of the shaking frame 134 is a hinged end and the rear end is a free end; the hinged end of the shaking frame 134 is hinged to the fixed frame 138 via a rotating shaft 135; a roller shaft 133 is provided at the free end of the shaking frame 134; and a camshaft 136 is movably supported in the fixed frame 138 below the free end of the shaking frame 134. The camshaft 136 is powered by a bag-shaking reduction motor 131 mounted on the fixed frame 138. Driven to rotate, a number of cams 132 are fixedly mounted on the camshaft 136, corresponding upward to the roller shaft 133 of the free end of the shaking frame 134. Under its own weight, the shaking frame 134 always tends to rotate downward around the rotation axis 135, so that the roller shaft 133 of its free end always contacts and presses downward on the curved surface of the cam 132. When the shaking bag reduction motor 131 drives the camshaft 136 to rotate, it will synchronously drive each cam 132 on the camshaft 136 to rotate. Since the free end of the shaking frame 134 is always pressed downward on the curved surface of the cam 132 through the roller shaft 133, when each cam 132 rotates, it will drive the free end of the shaking frame 134 to swing up and down, so that the shaking frame 134 can quickly shake the bag 2 that has been moved to the bag breaking and storage station by the transfer clamping unit.

[0042] In this embodiment, as shown in Figures 10, 11, 12, and 13, the structure of the bag-breaking mechanism 12 includes: two slide rails 121 arranged opposite each other and spanning the bag-breaking storage station in a front-back direction. The two slide rails 121 are arranged on the left and right sides below the bag-shaking mechanism 13. Both slide rails 121 are fixedly installed on the housing 1. A slider 122 is slidably arranged on each slide rail 121. The two sliders 122 are connected by a connecting rod 128. The connecting rod 128 and the two sliders 122 constitute a sliding base. Two vertical support plates 127 arranged opposite each other are fixedly installed on the connecting rod 128. The two support plates 127 are arranged on the left and right sides of the bag-shaking mechanism 13. A bag-breaking rotating shaft 123 located above the bag-shaking mechanism 13 is movably supported between the two support plates 127. Several blades 124 are installed axially at intervals on the bag-breaking rotating shaft 123. A bag-breaking electric... The output shaft of the bag-breaking motor 125 is connected to the bag-breaking rotating shaft 123 to drive the bag-breaking rotating shaft 123 and the blade 124 to rotate at high speed. A bag-breaking telescopic cylinder 126 is also installed inside the housing 1 at the bag-breaking storage station. The piston rod of the bag-breaking telescopic cylinder 126 is connected to the sliding base. When the bag-breaking motor 125 drives the bag-breaking rotating shaft 123 and the blade 124 to rotate at high speed, the piston rod of the bag-breaking telescopic cylinder 126 extends, driving the blade through the sliding base. 124 The bag 2 is moved to the bag breaking and storage station by the transfer clamping unit, so that the blade cuts the bag 2. Since the bag breaking mechanism 12's bag breaking shaft 123 is located above the shaking frame of the bag shaking mechanism, the two slide rails 121 are arranged on the left and right sides below the bag shaking mechanism 13, and the two support plates 127 are arranged on the left and right sides of the bag shaking mechanism 13, the bag breaking shaft will not collide with the shaking frame when it moves back and forth, and the back and forth movement of the bag breaking shaft will not be hindered or restricted by the shaking frame.

[0043] In practical applications, the structure of the shaking frame 134 is as follows: it includes shaking frame ribs arranged at intervals from left to right. The front ends of each shaking frame rib are connected and fixed by a rotating shaft 135, and the rear ends of each shaking frame rib are connected and fixed by a roller shaft. The gap 137 between each shaking frame rib forms a drop gap that facilitates the material inside the bag 2 to fall into the material storage mechanism 14 when the shaking frame shakes the bag after it has been broken. At this time, the gap 137 between each shaking frame rib corresponds exactly to the blade 124 of the bag breaking mechanism, and each gap 137 is in a front-back direction. This can further avoid the shaking frame 134 from hindering the front-back movement of the blade 124 and improve the operational stability of the bag breaking mechanism.

[0044] When it is necessary to cut open the bag 2 that has been moved from the transfer clamping unit to the bag breaking and storage station, the bag breaking motor 125 first drives the bag breaking shaft 123 and the blade 124 to rotate at high speed. Then, the piston rod of the bag breaking telescopic cylinder 126 extends. The bag breaking telescopic cylinder 126 drives the blade 124, which is rotating at high speed, forward through the sliding base to pass the bag 2 that has been moved from the transfer clamping unit to the bag breaking and storage station, so that the blade 124 cuts open the bag 2 to allow the material inside the bag 2 to flow out. Then, the piston rod of the bag breaking telescopic cylinder 126 retracts back to its original position, and the bag breaking shaft 123 and the blade 124 are reset through the sliding base. The above-mentioned bag breaking mechanism has a simple structure, is easy to operate, and can quickly break the bag, thereby improving work efficiency.

[0045] In this embodiment, the storage mechanism 14 is a discharge hopper 141 located directly below the bag shaking mechanism. The discharge hopper 141 can collect and store the material flowing out of the bag 2 after the bag is broken.

[0046] In this embodiment, as shown in FIG15, the structure of the extrusion mechanism 15 includes: a screw extruder 151 installed at the extrusion discharge station, the inlet end of the screw extruder 151 being located inside the housing 1 and its outlet end extending outward from the housing 1, and a guide hopper 152 installed at the inlet end of the screw extruder 151. The guide hopper 152 is used to guide the packaging bag released from the transfer clamping unit into the screw extruder. During operation, after the transfer clamping unit shakes the packaged bag clean and moves it to the extrusion discharge station and releases the packaged bag, the packaged bag will fall downward into the guide hopper 152 and enter the screw extruder 151 through the guide hopper 152. At this time, the screw extruder 151 is started, and the screw extruder 151 will squeeze the packaged bag that has entered the interior while outputting it from its inlet end to its outlet end to the outside of the housing, thereby extruding the packaged bag in a compressed form from the housing 1. The packaged bag output from the housing 1 is in a compressed form with a small volume, which is convenient for storage and subsequent processing.

[0047] In this embodiment, an exhaust port is provided on the housing 1, and a pulse jet blowing device is provided at the exhaust port, as shown in Figure 14. The pulse jet blowing device includes: a housing 161 with an open bottom. The open bottom of the housing 161 is aligned with and covers the exhaust port so that the interior of the housing 1 is connected to the interior of the housing 161 through the exhaust port. A perforated plate 162 is provided inside the housing 161, and several mounting holes are provided on the perforated plate 162. The perforated plate 162 divides the interior of the housing 161 into an upper cavity 163 and a lower cavity 164. A filter bag 165 is installed in each mounting hole with the bag opening facing upward and the bag body of the filter bag 165 positioned downward. In the lower chamber 164, filter bags 165 are arranged in several rows. Several blowpipes 166 are installed in the upper chamber 163, each blowpipe corresponding to a row of filter bags 165. Several nozzles 167 are installed on each blowpipe 166, with each nozzle 167 corresponding to the opening of a filter bag 165. All blowpipes 166 are connected to a high-pressure air source 168. An outlet is provided on the housing 161. A dust collector fan 169 is installed in the upper chamber of the housing 161, with its outlet extending out of the housing 161. During operation, the bag transfer, bag breaking, and... The bag-shaking and other operations are all completed inside the housing. During each operation, the dust collector fan 169 remains running. The dust collector fan introduces the dust-generating gas generated during each operation into the lower chamber 164 of the housing 161. The dust particles in the gas entering the lower chamber 164 are filtered and adsorbed by the filter bags, while the clean gas passes through the filter bags 165 into the upper chamber 163. The clean gas entering the upper chamber 163 is then discharged outside the housing by the dust collector fan 169. Since the gas discharged outside the housing 1 is clean gas, it will not affect the environment and greatly improves the working environment, which is beneficial to the health of workers. During the process, filter bags 165 inevitably become clogged after running for a period of time. At this time, the high-pressure air source 168 can be started to backflush the filter bags 165 with high-pressure gas at a set frequency. The high-pressure gas in the high-pressure air source 168 passes through the blow pipe 166 and the nozzle 167 in sequence and is sprayed downward into the interior of the filter bags 165 from the bag opening, thereby backflushing the filter bags 165. By backflushing and shaking the filter bags 165, the dust and impurities remaining on the surface of the filter bags 165 are shaken off from the surface of the filter bags 165, thereby regenerating the filtration capacity of the filter bags 165 and improving the stability of the equipment.

[0048] The working principle of this invention is as follows:

[0049] First, the feeding reduction motor 6 of the feeding unit 11 drives each conveying roller 4 to rotate forward simultaneously through the first sprocket and chain assembly, thereby driving the conveying roller track formed by each conveying roller 4 to send the stacked multi-layer bags forward into the housing 1 until the multi-layer bags are moved to the clamping station inside the housing 1, at which point the action of the feeding reduction motor 6 is stopped.

[0050] Next, the transfer clamping unit grips the bag 2 located at the gripping station. The specific operation is as follows:

[0051] The lifting mechanism 9's lifting reduction motor 910 reverses, driving the second transmission gear 913 to rotate via the second drive gear 912 and transmission chain 914. This synchronously drives the rotating shaft 911 and traction wheel 915 to reverse. When the traction wheel 915 reverses, it releases and lowers the wire rope 916. During the lowering process of the wire rope 916, the gripping mechanism 10 moves downwards under its own weight. When the gripping mechanism 10 contacts the bag 2 located at the clamping station, it activates the first cylinder 109 and the second cylinder 113 of the gripping mechanism, causing the first... The cylinder 109 drives the left hooks 104 of all gripping units to flip down and to the right to grip the bracket 101 through the first mounting plate 108, the first connecting rod 107 and each first connecting plate 106, so that the second cylinder 113 drives the right hooks 105 of all gripping units to flip down and to the left to grip the bracket 101 through the second mounting plate 112, the second connecting rod 111 and each second connecting plate 110, so that each left hook 104 and each right hook 105 of the gripping mechanism cooperate to insert and grip the bag 2.

[0052] Next, the lifting reduction motor 910 of the lifting mechanism 9 rotates forward, which drives the second transmission gear 913 to rotate through the second drive gear 912 and the transmission chain 914. This drives the rotating shaft 911 and the traction wheel 915 to rotate forward. When the traction wheel 915 rotates forward, it will wind and retract the steel wire rope 916. During the retraction process of the steel wire rope 916, the steel wire rope 916 will drive the brackets 91 of the folding frame to fold and retract, thereby driving the gripping mechanism 10 to move upward. Simultaneously, it drives the bag 2 gripped by the gripping mechanism 10 to move upward. After the bag 2 is moved to the set height, the action of the lifting mechanism 9 stops.

[0053] Next, the transfer reduction motor 85 of the transfer trolley 8 rotates forward. The transfer reduction motor 85 drives the first transmission gear to rotate through the first drive gear 86, so as to synchronously drive the corresponding first rotating shaft 82 and the wheel 83 to rotate, thereby driving the frame 81 to move forward along the track 7 in the housing 1. When the induction plate on the transfer trolley 8 senses the first sensor 12, the transfer reduction motor 85 stops. At this time, the transfer trolley 8 just moves the bag 2 forward to the bag breaking and storage station.

[0054] Next, the lifting reduction motor 910 of the lifting mechanism 9 reverses again, driving the second transmission gear 913 to rotate via the second drive gear 912 and transmission chain 914. This synchronously drives the rotating shaft 911 and traction wheel 915 to reverse. When the traction wheel 915 reverses, it releases the steel wire rope 916, thereby placing the gripping mechanism 10 and the bag 2 gripped by the gripping mechanism 10 onto the shaking frame 134 of the shaking mechanism 13.

[0055] Next, the bag-breaking motor 125 drives the bag-breaking shaft 123 and the blade 124 to rotate at high speed. Then, the piston rod of the bag-breaking telescopic cylinder 126 extends. The bag-breaking telescopic cylinder 126 drives the blade 124, which is rotating at high speed, to move forward through the bag 2 via the sliding base, so that the blade 124 cuts open the bag 2 to allow the material inside the bag 2 to flow out. Then, the piston rod of the bag-breaking telescopic cylinder 126 retracts back to its original position, and the bag-breaking shaft 123 and the blade 124 move backward to reset via the sliding base.

[0056] Before the shaking frame 134 of the bag shaking mechanism 13 shakes the bag 2, the lifting reduction motor 910 of the lifting mechanism 9 will drive the traction wheel 915 to rotate several times in reverse, so that the wire rope 916 is not taut. This allows the gripping mechanism 10 and the bag 2 to have room to move downward during the bag shaking process. In this way, when the bag 2 becomes thinner as the material flows out, the gripping mechanism 10 and the bag 2 will always press on the shaking frame 134, so that the shaking frame 134 can always contact and shake the bag 2, thus improving the bag shaking efficiency.

[0057] Next, the bag-shaking reduction motor 131 drives the camshaft 136 to rotate. As the camshaft 136 rotates, it synchronously drives the cams 132 on the camshaft 136 to rotate. Since the free end of the shaking frame 134 is always pressed downwards on the curved surface of the cams 132 via the roller shaft 133, when each cam 132 rotates, it causes the free end of the shaking frame 134 to swing up and down reciprocally, thereby causing the shaking frame 134 to rapidly shake the bags 2 moved by the transfer clamping unit to the bag-breaking storage station. During the shaking process of the shaking frame 134 on the bags 2... During the process, because a flexible steel wire rope 916 is used to pull the folding frame, the folding frame is always in a freely foldable state in the upward direction throughout the entire process of the bag shaking mechanism shaking the bag. Therefore, when the bag shaking mechanism 13 shakes the bag grabbed by the grasping mechanism 10, the up and down shaking of the grasping mechanism 13 by the bag shaking mechanism 13 will not affect the transfer trolley 8, which can effectively prevent the transfer trolley 8 from shaking and vibrating during the bag shaking process, thereby ensuring the stability and safety of use.

[0058] When the bag 2 is broken and shaken, the material that flows out will fall down from the material drop gap of the shaker 134 into the unloading hopper 141. After the bag 2 is shaken clean, only the packaging bag is left to be gripped by the gripping mechanism 10.

[0059] Then, the lifting reduction motor 910 of the lifting mechanism 9 rotates forward again, driving the second transmission gear 913 to rotate through the second drive gear 912 and transmission chain 914, which in turn drives the rotating shaft 911 and traction wheel 915 to rotate forward. When the traction wheel 915 rotates forward, it will wind and retract the wire rope 916. During the retraction process of the wire rope 916, the wire rope 916 will drive the brackets 91 of the folding frame to fold and retract, thereby driving the gripping mechanism 10 and the packaging bag gripped by the gripping mechanism 10 to move upward. After the packaging bag is moved to the set height, the action of the lifting mechanism 9 is stopped.

[0060] Next, the transfer reduction motor 85 of the transfer trolley 8 rotates forward again. The transfer reduction motor 85 drives the first transmission gear to rotate through the first drive gear 86, so as to synchronously drive the corresponding first rotating shaft 82 and the wheel 83 to rotate, thereby driving the frame 81 to move forward along the track 7 in the housing 1. When the induction plate on the transfer trolley 8 senses the second sensor 13, the transfer reduction motor 85 stops. At this time, the transfer trolley 8 moves the bag 2 forward to the extrusion and discharge station.

[0061] Next, the first cylinder 109 and the second cylinder 113 of the gripping mechanism 10 are activated, causing all left hooks 104 and all right hooks 105 to flip upwards and enter the gripping bracket 101 simultaneously, thereby pulling the left hooks 104 and right hooks 105 out of the packaging bag to release the packaging bag. At this time, the packaging bag will fall downwards into the guide hopper 152 of the extrusion mechanism 15, and then enter the screw extruder 151 through the guide hopper 152. At this time, the screw extruder 151 will squeeze the packaging bag that has entered the interior while outputting it from its inlet end to its outlet end to the outside of the housing 1, thereby extruding the packaging bag in a compressed state from the housing 1. The packaging bag output from the housing 1 is in a small compressed state, which is convenient for storage and subsequent processing.

[0062] Then the transfer reduction motor 85 of the transfer trolley 8 is reversed. The transfer reduction motor 85 drives the first transmission gear to rotate through the first drive gear 86, so as to synchronously drive the corresponding first rotating shaft 82 and the wheel 83 to rotate, thereby driving the frame 81 to move backward along the track 7 in the housing 1 to reset to the initial position.

[0063] Repeat the above process to achieve automatic and continuous unpacking of bags;

[0064] During the continuous unpacking process, the dust collector fan 169 in the pulse jet cleaning device 16 introduces the dust-generating gas generated during each operation into the lower chamber 164 of the housing 161. The dust particles in the gas entering the lower chamber 164 are filtered and adsorbed by the filter bags, while the clean gas passes through the filter bags 165 into the upper chamber 163. The clean gas entering the upper chamber 163 is then discharged outside the housing by the dust collector fan 169. Since the gas discharged outside the housing 1 is clean gas, it will not affect the environment and greatly improves the working environment, which is beneficial to the health of workers. During operation, the filter bags 165... After a period of operation, the filter bags 165 may inevitably become clogged. At this time, the high-pressure air source 168 can be activated to backflush the filter bags 165 with high-pressure gas at a set frequency. The high-pressure gas in the high-pressure air source 168 passes through the blow pipe 166 and the nozzle 167 in sequence and is sprayed downward into the interior of each filter bag 165 from the bag opening, thereby backflushing the filter bags 165. By backflushing and shaking the filter bags 165, the dust and impurities remaining on the surface of the filter bags 165 are shaken off, regenerating the filtration capacity of the filter bags 165 and thus improving the stability of the equipment.

[0065] The advantages of this invention are: it enables continuous unpacking of bags, has high unpacking efficiency, high equipment stability, and the unpacking process is environmentally friendly and will not pollute the environment.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any modifications or equivalent changes made based on the technical essence of the present invention shall still fall within the scope of protection claimed by the present invention.

Claims

1. A fully automatic bag unpacking machine, characterized in that: include: The housing and feeding unit, along the bag conveying direction within the housing, are sequentially arranged a clamping station, a bag-breaking and storage station, and a bag-squeezing and discharging station. The feeding unit conveys the bags to the clamping station, which is equipped with a transfer clamping unit capable of gripping the bags and moving them to either the bag-breaking and storage station or the bag-squeezing and discharging station. The bag-breaking and storage station is equipped with a bag-breaking mechanism, a bag-shaking mechanism, and a storage mechanism. The bag-breaking mechanism cuts open the bags to allow the material inside to flow out. The bag-shaking mechanism shakes the bags after they have been broken to remove the material. The storage mechanism collects the material flowing out of the bags. The bag-squeezing and discharging station is equipped with a bag-squeezing mechanism that collects and discharges the bags that have fallen from the transfer clamping unit.

2. The fully automatic bag unpacking machine according to claim 1, characterized in that: The feeding unit includes: a feeding frame that extends from the outside of the housing to the clamping station inside the housing. Several conveying rollers are supported in the feeding frame at intervals in the direction of the clamping station. The conveying rollers together form a conveying roller track for carrying and conveying bags. The shaft ends of the conveying rollers on the same side are connected by a first sprocket and chain assembly. One of the conveying rollers is driven to rotate by a feeding reduction motor.

3. The fully automatic bag unpacking machine according to claim 1, characterized in that: The structure of the transfer clamping unit includes: a track, a transfer trolley, a lifting mechanism, and a gripping mechanism. The track spans the clamping station, the bag breaking and storage station, and the bag extrusion and discharge station. The transfer trolley is mounted on the track and can move along the track. The gripping mechanism is installed on the transfer trolley through the lifting mechanism. The gripping mechanism can grip or release the bags that have been moved to the clamping station by the feeding unit. The lifting mechanism can drive the gripping mechanism and the bags gripped by the gripping mechanism to rise or fall.

4. The fully automatic bag unpacking machine according to claim 3, characterized in that: The structure of the transfer trolley includes: a frame, two first rotating shafts supported parallel to each other at both ends of the frame, wheels fixedly mounted on both sides of each first rotating shaft, the wheels being arranged in a track, the frame moving along the track via the wheels, a first transmission gear fixedly mounted on the shaft of one of the first rotating shafts, a transfer reduction motor fixedly mounted on the frame, a first drive gear fixedly mounted on the output shaft of the transfer reduction motor, the first drive gear meshing with the first transmission gear, the transfer reduction motor driving the first transmission gear to rotate through the first drive gear, so as to synchronously drive the corresponding first rotating shaft and wheels to rotate, thereby driving the frame to move along the track in the housing.

5. The fully automatic bag unpacking machine according to claim 4, characterized in that: The lifting mechanism includes a folding frame, which comprises several foldable supports. Each foldable support is formed by two supports hinged together in an X-shape. The foldable supports are arranged sequentially from top to bottom. The upper ends of the two supports of each foldable support are hinged to the lower ends of the two supports of the adjacent foldable support above it, and the lower ends of the two supports of each foldable support are hinged to the upper ends of the two supports of the adjacent foldable support below it, thus forming a scissor-type folding structure. In the folding frame, one of the upper supports of the topmost foldable support is hinged to the frame of the transfer trolley via an upper pivot. The other support has an upper connecting shaft. Upper rollers are movably fitted on both sides of the upper connecting shaft. The upper rollers on both sides of the upper connecting shaft are slidably mounted in a frame-type upper limit track fixed to the transfer trolley frame. One of the two lower supports of the lower foldable bracket is hinged to one end of the gripping mechanism via a lower pivot shaft. The other support has a lower connecting shaft at its lower end. Lower rollers are movably sleeved on both sides of the lower connecting shaft. The lower rollers on both sides of the lower connecting shaft are slidably set in a frame-type lower limit track fixed on the gripping mechanism. A lifting reduction motor and a pivot shaft are installed on the frame of the transfer trolley. The lifting reduction motor is fixedly installed on the frame, and the pivot shaft is movably supported on the frame. A second drive gear is fixedly mounted on the output shaft of the lifting reduction motor, and a second transmission gear is fixedly mounted on the pivot shaft. A transmission chain is wound around the second drive gear and the second transmission gear. A traction wheel is also fixedly mounted on the pivot shaft. A steel wire rope is wound around the traction wheel. One end of the steel wire rope is fixed to the traction wheel, and the other end of the steel wire rope is connected to any support of any foldable bracket in the folding frame.

6. The fully automatic bag unpacking machine according to claim 3, characterized in that: The gripping mechanism includes: a gripping bracket, in which several gripping units are supported side-by-side at left and right intervals. Each gripping unit includes: a left connecting shaft and a right connecting shaft supported side-by-side at left and right parallel intervals within the gripping bracket; several left gripping hooks are fixedly installed axially at intervals on the left connecting shaft, and several right gripping hooks are fixedly installed axially at intervals on the right connecting shaft; a first connecting plate is fixed to the left connecting shaft of each gripping unit, the first connecting plates of all gripping units are parallel, the outer ends of all first connecting plates are hinged to the same first connecting rod, a first mounting plate is fixed to the first connecting rod, the piston rod of the first cylinder is hinged to the first mounting plate, and the cylinder body of the first cylinder is hinged to the gripping bracket; a second connecting plate is fixed to the right connecting shaft of each gripping unit, and the second connecting plates of all gripping units... Parallel to each other, the outer ends of all the second connecting plates are hinged to the same second connecting rod. A second mounting plate is fixed on the second connecting rod. The piston rod of the second cylinder is hinged to the second mounting plate, and the cylinder body of the second cylinder is hinged to the gripping bracket. The first cylinder can simultaneously drive the left gripping hooks of all gripping units to flip down and to the right out of the gripping bracket through the first mounting plate, the first connecting rod, and each first connecting plate. The second cylinder can simultaneously drive the right gripping hooks of all gripping units to flip down and to the left out of the gripping bracket through the second mounting plate, the second connecting rod, and each second connecting plate. When all the left and right gripping hooks flip down and out of the gripping bracket at the same time, each left and right gripping hook can cooperate to insert and grip the bag. When all the left and right gripping hooks flip up and into the gripping bracket at the same time, the left and right gripping hooks can be pulled out from the bag to release the bag.

7. The fully automatic bag unpacking machine according to claim 1, characterized in that: The structure of the bag-shaking mechanism includes: a fixed frame fixedly installed in the housing at the bag-breaking and storage station; a shaking frame installed in the fixed frame, with one end of the shaking frame being a hinged end and the other end being a free end; the hinged end of the shaking frame being hinged to the fixed frame via a rotating shaft; a roller shaft installed at the free end of the shaking frame; and a cam shaft movably supported in the fixed frame below the free end of the shaking frame. The cam shaft is driven to rotate by a bag-shaking reduction motor installed on the fixed frame. Several cams corresponding upward to the roller shaft at the free end of the shaking frame are fixedly mounted on the cam shaft. Under its own weight, the shaking frame always tends to rotate downward around the rotating shaft, so that the roller shaft at its free end always tends to contact and press downward on the curved surface of the cam. When the bag-shaking reduction motor drives the cam to rotate through the cam shaft, the cam can drive the shaking frame to swing up and down, so that the shaking frame can quickly shake the bags moved to the bag-breaking and storage station by the transfer clamping unit. The storage mechanism is a discharge hopper located directly below the bag-shaking mechanism.

8. The fully automatic bag unpacking machine according to claim 1, characterized in that: The bag-breaking mechanism comprises two opposing slide rails, each spanning the bag-breaking storage station. These two slide rails are positioned on either side below the bag-shaking mechanism and are fixedly mounted on the housing. A slider is slidably mounted on each slide rail, and the two sliders are connected by a connecting rod. The connecting rod and the two sliders form a sliding base. Two support plates are fixedly mounted on the connecting rod, positioned on either side of the bag-shaking mechanism. A bag-breaking rotating shaft, located above the bag-shaking mechanism, is movably supported between the two support plates. Along the bag-breaking rotating shaft... Several blades are installed at axial intervals. A bag-breaking motor is installed on one of the support plates. The output shaft of the bag-breaking motor is connected to the bag-breaking rotating shaft to drive the bag-breaking rotating shaft and the blades to rotate at high speed. A bag-breaking telescopic cylinder is also installed in the housing at the bag-breaking storage station. The piston rod of the bag-breaking telescopic cylinder is connected to the sliding base. When the bag-breaking motor drives the bag-breaking rotating shaft and the blades to rotate at high speed, the piston rod of the bag-breaking telescopic cylinder extends to drive the blades through the transfer clamping unit to the bag at the bag-breaking storage station, thereby causing the blades to cut the bag.

9. The fully automatic bag unpacking machine according to claim 1, characterized in that: The extrusion bag mechanism includes: a screw extruder installed at the extrusion bag discharge station, the inlet end of the screw extruder being located inside the housing and its outlet end extending outward from the housing, and a guide hopper installed at the inlet end of the screw extruder to guide the packaging bags released from the transfer clamping unit into the screw extruder.

10. The fully automatic bag unpacking machine according to claim 1, characterized in that: An exhaust port is provided on the housing, and a pulse jet cleaning device is provided at the exhaust port. The pulse jet cleaning device includes: a housing with an open bottom, the open bottom of the housing being aligned with and covering the exhaust port so that the interior of the housing is connected to the interior of the housing through the exhaust port; a perforated plate is provided inside the housing, with several mounting holes on the perforated plate, which divides the interior of the housing into an upper chamber and a lower chamber; a filter bag is installed in each mounting hole, with the bag opening facing upwards and the bag body placed in the lower chamber; the filter bags are arranged in several rows; several jet pipes are provided in the upper chamber, each jet pipe corresponding to a row of filter bags; several nozzles are provided on each jet pipe, and each nozzle on each jet pipe corresponds one-to-one with the opening of the corresponding filter bag; all jet pipes are connected to a high-pressure air source; an outlet is provided on the housing; a dust collector fan is provided in the upper chamber of the housing, and the outlet end of the dust collector fan extends out of the housing from the housing outlet.

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