Four-column wide-range adaptive forward tension unpacking horizontal bale breaker and method

Abstract

The invention provides a four-column wide-range adaptive forward pulling force unpacking horizontal bale breaker and method. Fixed cross beams are symmetrically and fixedly installed at the top of a base support, guide rods are symmetrically fixed to the two sides of the fixed cross beams, movable cross beams are symmetrically and slidably installed between the guide rods, and multiple sets of clamping oil cylinders are symmetrically hinged to the inner side walls of the movable cross beams; an unpacking gripper is hinged between the clamping oil cylinder and the movable cross beam; a left unpacking oil cylinder is fixed to the middle of the outer side wall of the fixed cross beam located on the left side, and a right unpacking oil cylinder is fixed to the middle of the outer side wall of the fixed cross beam located on the right side. The left unpacking oil cylinder and the right unpacking oil cylinder are connected with the movable cross beams on the corresponding sides through reverse push rod mechanisms respectively. The oil cylinder of the same specification is large in unpacking force and small in size, the area of the piston rod can be increased, and the return speed is increased. In addition, a bag pushing oil cylinder and a discharging conveyor are arranged, materials on the screen work platform can be rapidly cleaned, the automation degree of equipment is improved, and the unpacking detection efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of unpacking of scrap metal blocks, in particular to a horizontal unpacking machine and method for unpacking with positive tension force and four columns with wide range adaptability. Background Art

[0002] At present, many steel companies generally purchase scrap steel briquettes in large quantities. In order to determine whether there are impurities inside the scrap steel briquettes, whether the internal and external materials are consistent, and to accurately grade the scrap steel briquettes, the scrap steel briquettes need to be disassembled. Existing steel companies usually use manual unpacking, which is too slow, simple unpacking equipment, low degree of automation, and the disassembled briquettes need to be taken out separately, wasting effective working time and low inspection efficiency, thus affecting the unloading efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a horizontal unpacking machine and method with four-column wide-range adaptable positive pulling unpacking, which is guided by four guide columns, has double unpacking cylinders for positive pulling unpacking, and a combined clamping mechanism of multiple clamping cylinders and multiple unpacking grippers, which can effectively grasp the materials. Different from the traditional rod cavity retracting pulling unpacking, it not only has a large unpacking force and a small size for the same specification cylinder, but also can increase the piston rod area and speed up the return stroke. It is also equipped with a push cylinder and a discharge conveyor, which can quickly clean the materials on the screen working platform, improve the degree of automation of the equipment, and make the unpacking detection more efficient.

[0004] In order to realize the above-mentioned technical features, the purpose of the present invention is achieved as follows: a four-column wide-range adaptive positive tension unpacking horizontal unpacking machine comprises a base bracket, a fixed beam is symmetrically fixedly installed on the top of the base bracket, guide rods are symmetrically fixed on both sides of the fixed beam, a movable beam is symmetrically slidably installed between the guide rods, a plurality of groups of clamping cylinders are symmetrically hinged on the inner wall of the movable beam, and an unpacking gripper is hinged between the clamping cylinder and the movable beam; a left unpacking cylinder is fixed to the middle part of the outer wall of the fixed beam on the left, and a right unpacking cylinder is fixed to the middle part of the outer wall of the fixed beam on the right; the left unpacking cylinder and the right unpacking cylinder are respectively connected to the movable beam on the corresponding side through a reverse push rod mechanism.

[0005] The fixed crossbeam is fixedly mounted on the top of the base bracket by means of multiple sets of screws.

[0006] The cylinder base of the clamping cylinder is hinged to the side wall of the movable crossbeam through a first pin shaft, the end of the piston rod of the clamping cylinder is hinged to the unpacking gripper through a second pin shaft, and the unpacking gripper is hinged to the inner side wall of the movable crossbeam through a third pin shaft.

[0007] A bag pushing oil cylinder for pushing the bag block is fixedly installed at the middle part of the inner side wall of the movable cross beam.

[0008] The push-pack oil cylinder adopts a multi-stage oil cylinder, including an outer cylinder sleeve fixed on a movable crossbeam, a cylinder tail seat is fixed to the tail of the outer cylinder sleeve, an oil hole is arranged on the cylinder tail seat, a first piston is arranged inside the outer cylinder sleeve, a middle cylinder sleeve is fixedly installed on the first piston, a second piston is arranged inside the middle cylinder sleeve, an inner cylinder sleeve is fixedly installed on the second piston, a top cover is fixed to the end of the inner cylinder sleeve, a first end cover is installed at the end of the outer cylinder sleeve, and a second end cover is installed at the end of the middle cylinder sleeve.

[0009] The reverse push rod mechanism includes a connecting beam, the middle part of which is fixedly connected to the top of the unpacking piston rod of the left unpacking cylinder or the right unpacking cylinder on the corresponding side, and pull rods are fixedly installed on both sides of the connecting beam, and the other end of the pull rod slides through the fixed beam and is fixedly connected to the movable beam.

[0010] A pulley guide group is fixedly installed on the pull rod, and the pulley guide group forms a sliding fit with the guide rail on the top of the base bracket.

[0011] The movable cross beam forms a sliding fit with the guide rod through a sliding guide mechanism; A left screen workbench and a right screen workbench are respectively arranged on both sides of the top of the base bracket, and the left screen workbench is fixed to the lower right side of the movable crossbeam on the left side, and the right screen workbench is fixed to the lower left side of the movable crossbeam on the right side. The left screen workbench and the right screen workbench can move with the movement of the movable crossbeam to form a movable storage space for the packages to be disassembled; A lifting lug is fixed on the top of the fixed crossbeam.

[0012] A conveyor for cleaning fallen bales is provided directly below the center of the base support; The left and right unpacking cylinders use thickened piston rods with a large rod diameter ratio, so that the return speed is faster under the same oil supply flow.

[0013] The unpacking method of the horizontal unpacking machine with four-column wide range adaptive positive tension unpacking includes the following steps: Step 1: Closing operation of the movable crossbeam: Start the left unpacking cylinder and the right unpacking cylinder, drive the movable crossbeam through the left unpacking cylinder and the right unpacking cylinder, and drive the left screen workbench and the right screen workbench to close through the movable crossbeam; Step 2, placement of the mass: After the left screen workbench and the right screen workbench are closed, the bag is placed on the top of the left screen workbench and the right screen workbench; Step 3, clamping of the package: Start the clamping cylinder, drive the unpacking gripper through the clamping cylinder, and clamp the package block through the unpacking gripper; Step 4, unpacking the package: After the package is clamped, the left and right unpacking cylinders are started, and the movable crossbeam is driven by the left and right unpacking cylinders, and the clamping cylinder is driven by the movable crossbeam, and the package is torn by the clamping cylinder and the unpacking gripper, thereby achieving the unpacking effect; Step 5, cleaning of the lumps: After unpacking is completed, the bales will fall on the corresponding left screen workbench and right screen workbench, and then the bale pushing cylinder will be started to push the fallen bales to the conveyor, and the bales will be transported by the conveyor.

[0014] The present invention has the following beneficial effects: 1. This unpacking machine replaces the traditional manual unpacking process and can realize the unpacking of scrap steel briquettes, effectively improving the unpacking efficiency and reducing the difficulty of unpacking.

[0015] 2. The double-pull rod parallel sliding structure of the present invention uses the double-pull rod as a sliding guide to perform unpacking, thereby eliminating the hidden danger of eccentric load during the unpacking process and solving the problem of moving guide during the unpacking process.

[0016] 3. The present invention is different from the traditional unpacking equipment which uses rod chamber pulling unpacking. It uses piston chamber pulling unpacking. For cylinders of the same specifications and sizes, the unpacking pulling force is large; for cylinders with the same unpacking force, the size of the cylinder is small.

[0017] 4. The unpacking oil cylinder of the present invention is designed with a thickened piston rod with a large rod diameter ratio, which can make the return speed faster under the same oil supply flow rate.

[0018] 5. In the present invention, multiple clamping cylinders are used to hinge multiple unpacking grippers to the inner side of the movable crossbeam to form a clamping mechanism composed of multiple movable connecting rod mechanisms. The clamping mechanism has a large range of motion, so that there is a wide material storage space. At the same time, multiple unpacking grippers grab the bag with uniform grabbing force, which can achieve effective material grabbing.

[0019] 6. The left screen workbench of the present invention is fixed to the lower right side of the left movable crossbeam, and the right screen workbench is fixed to the lower left side of the right movable crossbeam. The left screen workbench and the right screen workbench can move with the movement of the movable crossbeam to form a movable storage space for the packages to be disassembled.

[0020] 7. The clamping mechanism composed of the movable screen material storage space and the connecting rod mechanism of the present invention broadens the application scope of the equipment and no longer requires the classification and specification of the packages to be disassembled and inspected.

[0021] 8. The addition of the bag pushing cylinder of the present invention allows the disassembled materials to be directly pushed onto the conveyor directly below the equipment for timely cleaning and transportation out of the equipment, thereby achieving rapid material cleaning, improving the automation of the equipment, and achieving higher unpacking efficiency.

[0022] 9. The push-bag oil cylinder of the present invention is a telescopic sleeve hydraulic cylinder. This structural oil cylinder allows the piston rod to extend longer in a limited space, making the equipment more compact.

[0023] 10. The pulley guide group of the present invention is used in combination with the sliding guide mechanism to effectively solve the unbalanced load in the unpacking process, making the unpacking process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] FIG. 1 is a front view of a horizontal unpacking machine with four columns and wide-range adaptable positive tension unpacking.

[0026] FIG. 2 is a top view of a horizontal unpacking machine with four columns and wide-range adaptive positive tension unpacking.

[0027] FIG. 3 is a side view of a horizontal unpacking machine with four columns and wide range adaptable positive tension unpacking.

[0028] Figure 4 shows the initial working state of the unpacking machine.

[0029] Figure 5: The working state of the bag unpacking machine clamping the bag block.

[0030] Figure 6 shows the state of the bale pushing cylinder after the bale unpacking machine is disassembled.

[0031] Figure 7 Schematic diagram of the retractable sleeve push cylinder structure.

[0032] Figure 8 Schematic diagram of the extension structure of the telescopic sleeve push cylinder.

[0033] Fig. 9 Schematic diagram of the cross section of the unpacking machine.

[0034] Fig.10 Schematic diagram of inconsistent insertion depth of clamping claws during unpacking and clamping process of unpacking machine.

[0035] Fig.11 Schematic diagram of the bag opener unpacking and inspecting large-sized bags.

[0036] Fig.12 Schematic diagram of the unpacking machine unpacking and inspecting small-sized packages.

[0037] In the figure: connecting beam 1, base support 2, left unpacking cylinder 3, pulley guide group 4, fixed beam 5, movable beam 6, clamping cylinder 7, left screen workbench 8, conveyor 9, guide rod 10, sliding guide mechanism 11, pull rod 12, unpacking gripper 13, right screen workbench 14, package pushing cylinder 15 and right unpacking cylinder 16, unpacking piston rod 17, guide rail 18, lifting ear 19, package block 20, second pin 21, third pin 22, first pin 23; Outer cylinder sleeve 1501 , middle cylinder sleeve 1502 , inner cylinder sleeve 1503 , oil hole 1504 , cylinder tail seat 1505 , first piston 1506 , first end cover 1507 , second piston 1508 , second end cover 1509 , top cover 1510 . DETAILED DESCRIPTION

[0038] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0039] Embodiment 1: See also Figure 1-12 A four-column horizontal unpacking machine with wide-range adaptability and positive tension unpacking comprises a base bracket 2, a fixed beam 5 is symmetrically fixedly installed on the top of the base bracket 2, guide rods 10 are symmetrically fixed on both sides of the fixed beam 5, and a movable beam 6 is symmetrically slidably installed between the guide rods 10, and multiple groups of clamping cylinders 7 are symmetrically hinged on the inner wall of the movable beam 6, and an unpacking gripper 13 is hinged between the clamping cylinder 7 and the movable beam 6; a left unpacking cylinder 3 is fixed to the middle part of the outer wall of the fixed beam 5 on the left, and a right unpacking cylinder 16 is fixed to the middle part of the outer wall of the fixed beam 5 on the right; the left unpacking cylinder 3 and the right unpacking cylinder 16 are respectively connected to the movable beam 6 on the corresponding side through a reverse push rod mechanism. This unpacking machine is mainly used for disassembly and inspection of recycled bales. The metal bales that need to be disassembled are placed in the center of the screen workbench, and the clamping cylinders on both sides are opened to grasp the bales. Then the unpacking cylinders at both ends are opened to positively stretch and tear the bales. Such actions are performed in sequence until the bales are completely disassembled. The present invention is guided by four guide columns, and double unpacking cylinders use positive pulling force to unpack. The multi-clamping cylinder shape and multi-unpacking gripper type combined clamping mechanism can effectively grasp the material. Different from the traditional rod cavity retracting pulling unpacking, not only the unpacking force of the same specification cylinder is large and the size is small, but also the piston rod area can be increased to speed up the return speed. It is also equipped with a push cylinder and a discharge conveyor, which can quickly clean the materials on the screen work platform, improve the degree of automation of the equipment, and make the unpacking inspection more efficient.

[0040] Furthermore, the fixed beam 5 is fixedly mounted on the top of the base bracket 2 by multiple sets of screws. The fixed beam 5 can be reliably fixed on the top of the base bracket 2 by the above fixing method, thereby ensuring the reliability of fixing the fixed beam 5.

[0041] Furthermore, the cylinder base of the clamping cylinder 7 is hinged to the side wall of the movable cross beam 6 through the first pin 23, the piston rod end of the clamping cylinder 7 is hinged to the unpacking gripper 13 through the second pin 21, and the unpacking gripper 13 is hinged to the inner wall of the movable cross beam 6 through the third pin 22. Through the above-mentioned installation method, the clamping mechanism composed of a plurality of movable connecting rod mechanisms has a large range of movement, so that there is a wide material storage space, and multiple unpacking grippers can grab the bag at the same time, and the bag is grabbed with uniform grabbing force, so that effective material grabbing can be achieved.

[0042] Furthermore, a bag pushing cylinder 15 for pushing the bag block 20 is fixedly installed in the middle part of the inner wall of the movable crossbeam 6. The addition of the bag pushing cylinder 15 allows the disassembled materials to be directly pushed into the conveyor directly below the equipment for timely cleaning and transportation out of the equipment, thereby achieving rapid material cleaning, improving the automation of the equipment, and making the unpacking efficiency higher.

[0043] Further, the push package oil cylinder 15 adopts a multi-stage oil cylinder, including an outer cylinder sleeve 1501 fixed on the movable cross beam 6, a cylinder tail seat 1505 is fixed to the tail of the outer cylinder sleeve 1501, an oil hole 1504 is arranged on the cylinder tail seat 1505, a first piston 1506 is arranged inside the outer cylinder sleeve 1501, a middle cylinder sleeve 1502 is fixedly installed on the first piston 1506, a second piston 1508 is arranged inside the middle cylinder sleeve 1502, an inner cylinder sleeve 1503 is fixedly installed on the second piston 1508, a top cover 1510 is fixed to the end of the inner cylinder sleeve 1503, a first end cover 1507 is installed at the end of the outer cylinder sleeve 1501, and a second end cover 1509 is installed at the end of the middle cylinder sleeve 1502. By adopting a multi-stage oil cylinder, the active stroke of the push package oil cylinder 15 is effectively increased. This structural oil cylinder allows the piston rod to extend longer in a limited space, making the device more compact.

[0044] Furthermore, the reverse push rod mechanism includes a connecting crossbeam 1, the middle part of which is fixedly connected to the top of the unpacking piston rod 17 of the left unpacking oil cylinder 3 or the right unpacking oil cylinder 16 on the corresponding side, and pull rods 12 are fixedly installed on both sides of the connecting crossbeam 1, and the other end of the pull rod 12 slides through the fixed crossbeam 5 and is fixedly connected to the movable crossbeam 6. Through the above reverse push rod mechanism, different from the rod cavity tension unpacking of traditional unpacking equipment, the piston cavity tension unpacking is used, and the unpacking tension of the same specification and size oil cylinder is large; the size of the oil cylinder with the same unpacking force is small.

[0045] Furthermore, a pulley guide group 4 is fixedly mounted on the pull rod 12, and the pulley guide group 4 forms a sliding fit with the guide rail 18 on the top of the base bracket 2. The pulley guide group 4 is used in combination with the sliding guide mechanism 11 to effectively solve the unpacking process eccentric loading, making the unpacking process more stable.

[0046] Furthermore, the movable crossbeam 6 forms a sliding fit with the guide rod 10 through the sliding guide mechanism 11; the left screen workbench 8 and the right screen workbench 14 are respectively arranged on both sides of the top of the base bracket 2, and the left screen workbench 8 is fixed to the lower right of the movable crossbeam 6 on the left side, and the right screen workbench 14 is fixed to the lower left of the movable crossbeam 6 on the right side. The left screen workbench 8 and the right screen workbench 14 can move with the movement of the movable crossbeam 6 to form a movable storage space for the blocks to be disassembled. In this way, the storage space for the blocks is increased.

[0047] Furthermore, a lifting lug 19 is fixed to the top of the fixed crossbeam 5. The lifting lug 19 facilitates the lifting of the entire unpacking machine. Furthermore, a conveyor 9 for cleaning fallen bales is provided directly below the center of the base support 2, thereby replacing the manual cleaning process and improving the cleaning efficiency.

[0048] Furthermore, the left unpacking oil cylinder 3 and the right unpacking oil cylinder 16 adopt thickened piston rods with a large rod diameter ratio, so that the return speed is faster under the same oil supply flow, thereby improving the unpacking efficiency.

[0049] Embodiment 2: The unpacking method of the horizontal unpacking machine with four-column wide range adaptive positive tension unpacking includes the following steps: Step 1, closing operation of the movable crossbeam 6: Start the left unpacking cylinder 3 and the right unpacking cylinder 16, drive the movable crossbeam 6 through the left unpacking cylinder 3 and the right unpacking cylinder 16, and drive the left screen workbench 8 and the right screen workbench 14 to close through the movable crossbeam 6; Step 2, placement of the package 20: After the left screen workbench 8 and the right screen workbench 14 are closed, the bag 20 is placed on top of the left screen workbench 8 and the right screen workbench 14; Step 3, clamping of the bag 20: The clamping cylinder 7 is started, and the unpacking gripper 13 is driven by the clamping cylinder 7, and the unpacking gripper 13 clamps the bag block 20; Step 4, unpacking of package block 20: After the bag block 20 is clamped, the left unpacking cylinder 3 and the right unpacking cylinder 16 are started, and the movable crossbeam 6 is driven by the left unpacking cylinder 3 and the right unpacking cylinder 16, and the clamping cylinder 7 is driven by the movable crossbeam 6, and the bag block 20 is torn by the clamping cylinder 7 and the unpacking gripper 13, thereby achieving the unpacking effect; Step 5, cleaning of the package 20: After unpacking is completed, the bale 20 will fall on the corresponding left screen workbench 8 and right screen workbench 14, and then the bale pushing cylinder 15 will be started to push the fallen bale 20 to the conveyor 9 through the bale pushing cylinder 15, and the bale 20 will be transported through the conveyor 9.

Claims

1. Four-column horizontal unpacking machine with wide range adaptability and positive tension unpacking, characterized by: The invention comprises a base bracket (2), a fixed crossbeam (5) is symmetrically fixedly installed on the top of the base bracket (2), guide rods (10) are symmetrically fixed on both sides of the fixed crossbeam (5), a movable crossbeam (6) is symmetrically slidably installed between the guide rods (10), a plurality of groups of clamping cylinders (7) are symmetrically hinged on the inner side wall of the movable crossbeam (6), and an unpacking gripper (13) is hinged between the clamping cylinders (7) and the movable crossbeam (6); a left unpacking cylinder (3) is fixed to the middle part of the outer side wall of the fixed crossbeam (5) on the left side, and a right unpacking cylinder (16) is fixed to the middle part of the outer side wall of the fixed crossbeam (5) on the right side; the left unpacking cylinder (3) and the right unpacking cylinder (16) are respectively connected to the movable crossbeam (6) on the corresponding side through a reverse push rod mechanism.

2. The horizontal unpacking machine with four-column wide-range adaptive positive tension unpacking according to claim 1, characterized in that: The fixed crossbeam (5) is fixedly mounted on the top of the base bracket (2) by means of multiple sets of screws.

3. The horizontal unpacking machine with four-column wide-range adaptive positive tension unpacking according to claim 1, characterized in that: The cylinder base of the clamping cylinder (7) is hinged to the side wall of the movable crossbeam (6) via a first pin shaft (23), the piston rod end of the clamping cylinder (7) is hingedly connected to the unpacking gripper (13) via a second pin shaft (21), and the unpacking gripper (13) is hinged to the inner side wall of the movable crossbeam (6) via a third pin shaft (22).

4. According to claim 1, the horizontal unpacking machine with four columns and wide range adaptability and positive tension unpacking is characterized by: A bag pushing cylinder (15) for pushing the bag block (20) is fixedly mounted at the middle portion of the inner side wall of the movable cross beam (6).

5. The horizontal unpacking machine with four-column wide-range adaptive positive tension unpacking according to claim 4, characterized in that: The push-pack oil cylinder (15) is a multi-stage oil cylinder, comprising an outer cylinder sleeve (1501) fixed on the movable cross beam (6), a cylinder tail seat (1505) fixed to the tail of the outer cylinder sleeve (1501), an oil hole (1504) provided on the cylinder tail seat (1505), a first piston (1506) provided inside the outer cylinder sleeve (1501), a middle cylinder sleeve (1502) fixedly mounted on the first piston (1506), a second piston (1508) provided inside the middle cylinder sleeve (1502), an inner cylinder sleeve (1503) fixedly mounted on the second piston (1508), a top cover (1510) fixed to the end of the inner cylinder sleeve (1503), a first end cover (1507) installed at the end of the outer cylinder sleeve (1501), and a second end cover (1509) installed at the end of the middle cylinder sleeve (1502).

6. According to claim 1, the horizontal unpacking machine with four columns and wide range adaptability and positive tension unpacking is characterized by: The reverse push rod mechanism comprises a connecting crossbeam (1), the middle portion of which is fixedly connected to the top of an unpacking piston rod (17) of a left unpacking oil cylinder (3) or a right unpacking oil cylinder (16) on the corresponding side, and pull rods (12) are fixedly installed on both sides of the connecting crossbeam (1), and the other end of the pull rod (12) slides through the fixed crossbeam (5) and is fixedly connected to the movable crossbeam (6).

7. According to claim 6, the horizontal unpacking machine with four columns and wide range adaptability and positive tension unpacking is characterized by: A pulley guide group (4) is fixedly mounted on the pull rod (12), and the pulley guide group (4) forms a sliding fit with a guide rail (18) on the top of the base bracket (2).

8. According to claim 6, the horizontal unpacking machine with four columns and wide range adaptability and positive tension unpacking is characterized by: The movable crossbeam (6) forms a sliding fit with the guide rod (10) via a sliding guide mechanism (11); A left screen workbench (8) and a right screen workbench (14) are respectively arranged on both sides of the top of the base bracket (2), and the left screen workbench (8) is fixed to the lower right side of the movable crossbeam (6) on the left side, and the right screen workbench (14) is fixed to the lower left side of the movable crossbeam (6) on the right side. The left screen workbench (8) and the right screen workbench (14) can move with the movement of the movable crossbeam (6), so as to form a movable storage space for the packages to be disassembled; A lifting lug (19) is fixed to the top of the fixed crossbeam (5).

9. According to claim 1, the horizontal unpacking machine with four columns and wide range adaptability and positive tension unpacking is characterized by: A conveyor (9) for cleaning fallen bags is provided directly below the center of the base support (2); The left unpacking oil cylinder (3) and the right unpacking oil cylinder (16) use thickened piston rods with a large rod diameter ratio, so that the return speed is faster under the same oil supply flow rate.

10. The unpacking method of the horizontal unpacking machine with four-column wide-range adaptive positive tension unpacking according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, closing operation of the movable crossbeam (6): The left unpacking oil cylinder (3) and the right unpacking oil cylinder (16) are started, and the movable crossbeam (6) is driven by the left unpacking oil cylinder (3) and the right unpacking oil cylinder (16), and the left screen workbench (8) and the right screen workbench (14) are driven to close by the movable crossbeam (6); Step 2, placement of the package (20): After the left screen workbench (8) and the right screen workbench (14) are closed, the bag (20) is placed on top of the left screen workbench (8) and the right screen workbench (14); Step 3, clamping of the bag block (20): Starting the clamping oil cylinder (7), driving the unpacking gripper (13) through the clamping oil cylinder (7), and clamping the bag block (20) through the unpacking gripper (13); Step 4, unpacking of the package block (20): After the bag (20) is clamped, the left unpacking cylinder (3) and the right unpacking cylinder (16) are started, and the movable crossbeam (6) is driven by the left unpacking cylinder (3) and the right unpacking cylinder (16), and the clamping cylinder (7) is driven by the movable crossbeam (6), and the bag (20) is torn by the clamping cylinder (7) and the unpacking gripper (13), thereby achieving the unpacking effect; Step 5, cleaning of the package (20): After the unpacking is completed, the bag block (20) will fall onto the corresponding left screen workbench (8) and right screen workbench (14), and then the bag pushing cylinder (15) will be started to push the fallen bag block (20) onto the conveyor (9), and the bag block (20) will be transported by the conveyor (9).

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