A material bag shearing device and its integrated unloading system and unloading method

Abstract

The present invention discloses a shearing device for a material bag and an integrated unloading system and method thereof. After the jaws of the caliper are closed, they are clamped on both sides of the material bag to form a clamping gap, and a slice is attached to the clamping gap. The cutting edge line of the slice passes through the clamping gap, and the cutting edge line moves along the extension direction of the clamping gap. Since the clamping gap is formed after the caliper is clamped, the material bag is restricted in the clamping gap, that is, the material bag is restricted to a corresponding gap-shaped structure, and then since the slice is attached to the clamping gap, the slice can cut the material bag along the clamping gap, thereby improving the shearing effect on the material bag under the coordinated action of the slice and the caliper, and since the cutting edge line passes through the clamping gap, a certain angle is formed between the cutting edge line and the clamping gap, thereby ensuring that the cutting edge line can quickly cut the material bag at the clamping gap, thereby ensuring the stability and effectiveness of cutting the material bag.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding devices, and in particular to a shearing device for material bags and an integrated unloading system and unloading method thereof. Background Art

[0002] Among the existing conveying devices, most of them convey materials by means of spiral, belt, chain plate, etc., which are suitable for large-volume materials and cannot be fixed. All of them are brought to the designated position by motors for manual loading and unloading, which inevitably leads to time-consuming and labor-intensive whole feeding process; Patent document CN107512556A discloses an automatic feeding system and method in a feed production line. With the rotation of the material-averaging barrel, the material bag located on the material bag cavity gradually falls onto the spiral conveying mechanism of the bag removal device, and the motor is started, and the motor drives the spiral conveying blade to rotate. Under the shearing action of the spiral conveying blade and the shearing groove, the material bag will cut multiple leakage seams on the material bag body, and the material belt is conveyed forward along the spiral conveying blade; with the rotation of the spiral conveying blade, the material bag is conveyed to the drum of the feeding device, and the motor is started, and the motor drives the drum to rotate. The material bag rotates with the drum and moves toward one end of the right circle of the drum in the drum. The material in the material bag falls through the drop hole, and the empty bag of the material bag is taken out through the right circle of the roller, but not only is it easy for the blade to impact with the material, resulting in easy damage to the blade, but also the material bag cannot be fully cut open.

[0003] Patent document CN204523521U discloses a high-efficiency bag separation device. The large bag cutting device includes a frame, a cylinder is installed on the frame, a proximity switch frame and a position display panel are installed on the cylinder, a proximity switch is installed on the proximity switch frame, a circular knife support arm is installed on the upper end of the frame and the cylinder, and a circular knife is installed on the free end of the circular knife support arm. When the clamping mechanism moves the bag to the top of the large bag cutting device, the circular knife cuts the bottom of the bag under the drive of the cylinder, and the powder falls into the block material automatic separation device for separation. However, the types of bags that can be cut are limited, resulting in a limited scope of use. Summary of the invention

[0004] The object of the present invention is to provide a shearing device for a material bag and an integrated unloading system and method thereof, so as to solve the problems existing in the above-mentioned prior art. The calipers clamp the material bag and form a clamping gap, and then start the slicer to abut against the clamping gap and move along the extension direction of the clamping gap, so as to stably and effectively cut the material bag, avoiding the influence of the material bag structure or material, resulting in poor cutting effect and affecting the unloading of the material in the material bag.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a shearing device for a material bag, comprising a caliper for clamping the material bag and a slice for cutting the material bag, the jaws of the caliper are clamped on both sides of the material bag after closing, and a clamping gap is formed, the slice is abutted against the clamping gap, the cutting edge line of the slice passes through the clamping gap, and the cutting edge line moves along the extension direction of the clamping gap.

[0006] Preferably, the caliper has a planar structure on one side of the clamping gap, and the slice moves close to the planar structure.

[0007] Preferably, the caliper is equipped with a clamping support platform, and the caliper includes two clamping blocks movably arranged on the clamping support platform, the clamping sections of the clamping blocks extend out of the clamping support platform, and the two clamping sections are clamped on both sides of the material bag.

[0008] Preferably, a slot is provided on one side of the two clamping blocks away from the clamping support platform, and the slot extends in a direction perpendicular to the movement of the clamping blocks. A first rotating disk is provided on the outer side of the slot, and two clamping protrusions are provided on the first rotating disk at positions on the same circumference. Each clamping protrusion is embedded in the corresponding slot and drives the two clamping blocks to move with the rotation of the first rotating disk.

[0009] Preferably, the clamping support platform is provided with a limiting frame spanning the outer sides of the two clamping blocks, the slicing includes a moving part and a cutting part connected to each other, the moving part is movably arranged on the inner side of the limiting frame, and the cutting part is attached to the gap between the two clamping blocks.

[0010] Preferably, the movable part is provided with a slide groove extending in the same direction as the moving direction of the clamping block, a second rotating disk is provided on the outer side of the slide groove, a slider rotating along a circumferential direction is provided on the second rotating disk, the slider is embedded in the slide groove, and drives the movable part to move with the rotation of the second rotating disk.

[0011] An integrated unloading system is also provided, comprising the shearing device, a rotating mechanism and a retaining frame connected to the clamping support platform, the retaining frame being fixed to a side of the clamping support platform corresponding to the clamping section and being located below the clamping section, the retaining frame being provided with an opening coaxially arranged with the jaws, the material bag being located inside the jaws after passing through the opening, the rotating mechanism driving the clamping support platform to flip with the retaining frame, the retaining frame supporting the material bag in an inverted state, and the material bag being discharged through the opened jaws.

[0012] Preferably, the conveying mechanism comprises a feeding wheel with a horizontally arranged rotating axis, the feeding wheel comprises a clamping area located between two blades thereof and used for clamping the material bag, and each of the clamping areas with a corresponding material bag alternately passes through the opening.

[0013] Preferably, the opening is provided with a front edge and a rear edge on both sides along the rotation direction of the feeding wheel, the length of the part of the material bag extending out of the blade is smaller than the radial distance between the front edge and the blade, the rear edge is close to the outer circumference of the blade when it rotates, the material bag passes over the front edge and abuts against the rear edge, and passes upward through the opening driven by the blade.

[0014] A method for unloading bagged materials is also provided, comprising the following steps:

[0015] Feeding: The feeding wheel clamps the material bag and rotates. Part of the material bag passes over the front edge and abuts against the rear edge. Driven by the blade, it passes upward through the opening of the retainer and then through the jaws of the caliper.

[0016] Clamping: The two clamps of the caliper are close to each other and clamp the material bag;

[0017] Flipping: The rotating mechanism is used to drive the clamping support platform to flip 90 degrees, and the material bag clamped by the caliper is kept on the rear edge;

[0018] Shearing: Start the slicer to stick to the clamping gap and move along the extension direction of the clamping gap to cut the material bag;

[0019] Dumping: The rotating mechanism is used again to drive the clamping support platform to flip 90 degrees. The material bag is held in an inverted position by the retaining frame, and the material falls out from the cut portion of the material bag by its own gravity.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] First, after the jaws of the caliper are closed, they are clamped on both sides of the material bag to form a clamping gap, and the slice is attached to the clamping gap, and the cutting edge line of the slice passes through the clamping gap, and the cutting edge line moves along the extension direction of the clamping gap. Since the clamping gap is formed after the caliper is clamped, the material bag is confined in the clamping gap, that is, the material bag is confined to a corresponding gap-shaped structure, and then since the slice is attached to the clamping gap, the slice can cut the material bag along the clamping gap, thereby improving the shearing effect on the material bag under the cooperation of the slice and the caliper, and since the cutting edge line passes through the clamping gap, a certain angle is formed between the cutting edge line and the clamping gap, thereby ensuring that the cutting edge line can quickly cut the material bag in the clamping gap, thereby ensuring the stability and effectiveness of cutting the material bag, and avoiding being affected by the material bag structure or material, resulting in poor cutting effect and affecting the unloading of the material in the material bag.

[0022] Second, since the clamping gap on one side of the caliper is in a planar structure, the slice moves close to the planar structure, thereby ensuring the slice's close contact with the clamping gap, further improving the shearing effect of the clamping gap and the slice on the material bag, and ensuring the cutting effect on the material bag.

[0023] Third, the caliper is equipped with a clamping support platform, which includes two clamping blocks movably arranged on the clamping support platform, the clamping sections of the clamping blocks extend out of the clamping support platform, and the two clamping sections are clamped on both sides of the material bag. The sliding direction of the clamping blocks is limited by the clamping support platform, thereby ensuring the stability of the reciprocating movement of the clamping blocks, and further ensuring the stability of the clamping of the material bag in the process of clamping the material bag. Therefore, when the subsequent slices move along the clamping gap of the caliper, the material bag can be stably cut, thereby ensuring the cutting effect of the material bag.

[0024] Fourth, the retaining frame is fixed on one side of the clamping section corresponding to the clamping support platform and is located below the clamping section. An opening coaxially arranged with the jaws is provided on the retaining frame. After the material bag passes through the opening, it is located inside the jaws. The rotating mechanism drives the clamping support platform with the retaining frame to flip. The retaining frame supports the material bag in an inverted state and discharges the material through the opened jaws. By setting the retaining frame, after the cutting of the material bag is completed, the retaining frame clamps the material bag to flip it and can confine the material bag in the retaining frame. Part of the structure of the material bag has passed through the opening of the retaining frame and has been sliced ​​and cut, so the material can pass through the opening from the retaining frame and fall down, completing the unloading of the material bag, avoiding the uncertainty of the position of the material bag and affecting the unloading efficiency.

[0025] Fifth, the conveying mechanism includes a feeding wheel with a horizontally arranged rotating axis, and the feeding wheel includes a clamping area located between its two blades and used to clamp the material bag. Each clamping area has a corresponding material bag that alternately passes through the opening, and the material bag is clamped by the two blades, thereby ensuring the stability of the material bag and ensuring that some structures of the material bag can stably pass through the opening, thereby avoiding the unstable position of the material bag that causes it to be unable to pass through the opening quickly, thereby completing the clamping work of the material bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a front view of the overall structure of the present invention;

[0028] Figure 2 It is a rear view of the overall structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the second rotating disk of the present invention;

[0030] Figure 4 It is a schematic diagram of the slice structure of the present invention;

[0031] Figure 5 It is a schematic diagram of a first rotating disk of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the caliper of the present invention;

[0033] Figure 7 A bottom view showing the connection between the retaining frame and the clamping support platform of the present invention;

[0034] Figure 8 It is a front view of the connection between the retaining frame and the clamping support platform of the present invention;

[0035] Fig. 9 It is a front view of the overall structure of the present invention when no caliper is provided;

[0036] Among them, 1-caliper, 2-holder, 3-feeding wheel, 4-limiting frame, 5-clamping block, 6-discharging vessel, 7-slice, 8-eccentric shaft, 9-clamping support platform, 10-second rotating disk, 11-slider, 12-slide groove, 13-moving part, 14-cutting part, 15-first rotating disk, 16-clamping protrusion, 17-slot, 18-rotating shaft, 19-clamping gap, 20-front edge, 21-rear edge, 22-opening. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The object of the present invention is to provide a shearing device for a material bag and an integrated unloading system and method thereof, so as to solve the problems existing in the above-mentioned prior art. The calipers clamp the material bag and form a clamping gap, and then start the slicer to abut against the clamping gap and move along the extension direction of the clamping gap, so as to stably and effectively cut the material bag, avoiding the influence of the material bag structure or material, resulting in poor cutting effect and affecting the unloading of the material in the material bag.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Please refer to Figures 1 to 9 The present invention provides a shearing device for material bags, especially for plastic-sealed bag-shaped materials, comprising a clamp 1 for clamping the material bag and a slice 7 for cutting the material bag. The jaws of the clamp 1 are closed and clamped on both sides of the material bag to form a clamping gap 19. The slice 7 is attached to the clamping gap 19. The cutting edge line of the slice 7 passes through the clamping gap 19. The cutting edge line moves along the extension direction of the clamping gap 19. Since the clamping gap 19 is formed after the clamp 1 is clamped, the material bag is restricted in the clamping gap 19, that is, the material bag is restricted to a corresponding gap-shaped structure, and then since the slice 7 is attached to the clamping gap 19, the material bag is restricted to a corresponding gap-shaped structure. At the gap 19, the slice 7 can cut the material bag along the clamping gap 19, which improves the shearing effect of the slice 7 and the clamp 1 on the material bag. Moreover, because the cutting edge line passes through the clamping gap 19, a certain angle is formed between the cutting edge line and the clamping gap 19. The preferred cutting edge line and the clamping gap 19 form a 90° angle, which ensures that the cutting edge line can quickly cut the material bag at the clamping gap 19, and can ensure the stability and effectiveness of cutting the material bag, avoiding the influence of the material bag structure or material, resulting in poor cutting effect and affecting the unloading of the material in the material bag. The preferred clamp 1 moves in the horizontal direction, and the material bag passes through the jaws from bottom to top, so that the material in the material bag is concentrated at the bottom of the material bag under the influence of gravity, and there is no material at the top, so the position clamped by the caliper 1 is the empty bag.

[0041] As a preferred embodiment of the present invention, the caliper 1 has a planar structure on one side of the clamping gap 19, and the slice 7 moves close to the planar structure. Among them, since the caliper 1 has a planar structure on one side of the clamping gap 19, the slice 7 moves close to the planar structure, thereby ensuring the close contact effect of the slice 7 on the clamping gap 19, further improving the shear force of the clamping gap 19 and the slice 7 on the material bag, and ensuring the cutting effect on the material bag.

[0042] Further, the caliper 1 is equipped with a clamping support platform 9, and the caliper 1 includes two clamping blocks 5 movably arranged on the clamping support platform 9, the clamping section of the clamping block 5 extends out of the clamping support platform 9, and the clamping sections are fitted together to form a clamping gap 19 after being clamped. The two clamping sections are clamped on both sides of the material bag, and the sliding direction of the clamping block 5 is limited by the clamping support platform 9, so that the stability of the reciprocating movement of the clamping block 5 is ensured, and then the stability of the clamping of the material bag can be ensured in the process of clamping the material bag. Then, when the subsequent slice 7 moves along the clamping gap 19 of the caliper 1, the material bag can be stably cut, and the effect of cutting the material bag is ensured. Preferably, matching protrusions and depressions are provided between the clamping blocks 5 to improve the clamping effect of the material bag. Or preferably, the ends of the two clamping blocks 5 away from the clamping sections are rotatably connected to the clamping support platform 9, for example, a rotating shaft 18 is provided, and the clamping sections can fit together to form a clamping gap 19 after the clamping block 5 rotates.

[0043] Preferably, in order to simplify the mechanism for driving the clamping block 5, a slot 17 is provided on one side of the two clamping blocks 5 away from the clamping support platform 9, and the slot 17 extends in a direction perpendicular to the movement of the clamping blocks 5. A first rotating disk 15 is provided on the outside of the slot 17, and two clamping protrusions 16 are provided at positions on the same circumference on the first rotating disk 15. Each clamping protrusion 16 is embedded in a corresponding slot 17, and drives the two clamping blocks 5 to move with the rotation of the first rotating disk 15. In the specific use process, the two clamping protrusions 16 are located on the same circumference, so when the first rotating disk 15 rotates, the two clamping protrusions 16 move along the circumference, and the clamping blocks 5 are limited by the clamping support platform 9, and then when the two clamping protrusions 16 rotate, they move in the slot 17 along the extension direction thereof to drive the two clamping blocks 5 to move. The first rotating disk 15 is equipped with a motor mechanism, etc., to drive the first rotating disk 15 to rotate.

[0044] Furthermore, in order to ensure the stable movement of the slicer 7 so that the slicer 7 can stably and accurately complete the cutting of the material bag, a limiting frame 4 is provided on the clamping support platform 9 and spans the outside of the two clamping blocks 5. The slicer 7 includes a connected moving part 13 and a cutting part 14. The moving part 13 is movably arranged on the inner side of the limiting frame 4, and the cutting part 14 is attached to the gap between the two clamping blocks 5.

[0045] Preferably, the movable portion 13 is provided with a slide groove 12 extending in the same direction as the moving direction of the clamping block 5, and a second rotating disk 10 is provided on the outer side of the slide groove 12. The second rotating disk 10 is provided with a slider 11 rotating in a circumferential direction. The slider 11 is embedded in the slide groove 12 and drives the movable portion 13 to move with the rotation of the second rotating disk 10. In specific use, the second rotating disk 10 rotates and drives the slider 11 to make a circular motion while moving along the extension direction of the slide groove 12. Since the sliding of the slice 7 is limited, when the slider 11 moves along the slide groove 12, it can drive the movable portion 13 to move along the limiting frame 4 to complete the cutting of the material bag, wherein the second rotating disk 10 is driven to rotate by a motor mechanism, etc.

[0046] An integrated unloading system is also provided, including a shearing device, a rotating mechanism and a retaining frame 2 all connected to the clamping support platform 9, the retaining frame 2 is fixed to one side of the clamping section of the clamping support platform 9 and is located below the clamping section, an opening 22 coaxially arranged with the jaws is opened on the retaining frame 2, the material bag is located inside the jaws after passing through the opening 22, the rotating mechanism drives the clamping support platform 9 with the retaining frame 2 to flip, the retaining frame 2 supports the material bag in an inverted state, and discharges the material through the opened jaws, by setting the retaining frame 2, after the cutting of the material bag is completed, the retaining frame 2 clamps the material bag to flip, and can confine the material bag in the retaining frame 2, part of the structure of the material bag has passed through the opening 22 of the retaining frame 2 and is cut by the slice 7, then the material can pass through the opening 22 from the retaining frame 2 and then fall, completing the unloading of the material bag, avoiding the uncertainty of the position of the material bag and affecting the unloading efficiency. The preferred rotating mechanism uses an eccentric shaft 8 connected to the clamping support platform 9, or because the holder 2 is fixed on the clamping support platform 9, the eccentric shaft 8 can be connected to the holder 2 to separate the clamping support platform 9 from the conveying mechanism with the holder 2, the material bag, etc., and dump the material bag from one side for unloading, and preferably a discharge container 6 is provided on the side of the holder 2 away from the conveying mechanism, so that the material can be directly dumped into the discharge container 6 after the material bag is turned over. Preferably, when in use, the material bag fixed by the caliper 1 is rotated 90° and then cut by the slicer 7, and after the material bag is rotated 90° and unloaded after the shearing is completed, the cut portion is always facing the discharge container 6.

[0047] Furthermore, the conveying mechanism includes a feeding wheel 3 with a horizontally arranged rotating axis, and the feeding wheel 3 includes a clamping area located between its two blades and used to clamp the material bag, and each clamping area with a corresponding material bag alternately passes through the opening 22, and the material bag is clamped by the two blades, thereby ensuring the stability of the material bag, and ensuring that part of the structure of the material bag can stably pass through the opening 22, avoiding the unstable position of the material bag that causes it to be unable to quickly pass through the opening 22, and completing the clamping work of the material bag. Preferably, the feeding wheel 3 is a star wheel structure with six teeth, and each bag of material needs to be fixed by the feeding wheel 3 during the conveying process, avoiding deviation or slipping.

[0048] Furthermore, the opening 22 is provided with a front edge 20 and a rear edge 21 on both sides along the rotation direction of the feeding wheel 3, the length of the part of the material bag extending out of the blade is less than the radial distance between the front edge 20 and the blade, the rear edge 21 is close to the outer circumference of the blade when it rotates, and the material bag abuts against the rear edge 21 after passing over the front edge 20, and passes upward through the opening 22 driven by the blade. In the specific use process, the material bag is first transported to the holder 2 by the feeding wheel 3, and part of the structure of the material bag passes through the opening 22 of the holder 2, and then the material bag is clamped by the caliper 1, and rotated 90° after clamping, and the material bag is supported by the rear edge 21, and the material bag is cut by the slice 7, and the material in the material bag is poured into the container after continuing to rotate 90°. This method of feeding, cutting and unloading improves the stability of bagged material transportation and avoids deviation or slipping during transportation. Preferably, the bagged material packaging is marked so that the material bag can be accurately fixed and clamped by the sensor, and the fixed material bag can be accurately cut and sent to the next link.

[0049] Furthermore, a method for unloading bagged materials is provided, comprising the following steps:

[0050] Feeding: The feeding wheel 3 grips the material bag and rotates. A portion of the material bag passes over the front edge 20 and abuts against the rear edge 21. Driven by the blade, the material bag passes upward through the opening 22 of the retainer 2 and then through the jaws of the caliper 1.

[0051] Clamping: The two clamping blocks 5 of the caliper 1 are brought close to each other and clamp the material bag; specifically, the material bag is marked, and after the material bag passes through the opening 22 of the retaining frame 2, the motor drives the first rotating disk 15 to rotate, and then the two clamping protrusions 16 move along the circumference, and the clamping blocks 5 are limited by the clamping support platform 9, and then while the two clamping protrusions 16 rotate, they move in the slot 17 along its extension direction, driving the two clamping blocks 5 to move, and completing the clamping of the material bag;

[0052] Turning: The rotating mechanism is used to drive the clamping support platform 9 to turn 90 degrees, and the material bag clamped by the caliper 1 is kept on the rear edge 21; specifically, the rotating mechanism drives the eccentric shaft 8 to rotate, so that the retaining frame 2 carrying the material bag is separated from the feeding wheel 3, and turned to the other side opposite to the feeding wheel 3, so that the position where the material bag is clamped faces the discharge container 6, and the rear edge 21 is used to complete the lifting of the material bag;

[0053] Shearing: Start the slicer 7 to abut against the clamping gap 19 and move along the extension direction of the clamping gap 19 to cut the material bag; specifically, the second rotating disk 10 of the motor mechanism rotates and drives the slider 11 to make a circular motion while moving along the extension direction of the slide groove 12. Since the sliding of the slicer 7 is limited, when the slider 11 moves along the slide groove 12, it can drive the moving part 13 to move along the limiting frame 4 to complete the cutting of the material bag;

[0054] Tipping: The rotating mechanism is used again to drive the clamping support platform 9 to flip 90 degrees. The material bag is held in an inverted position by the retaining frame 2, and the material falls out from the cut portion of the material bag by its own gravity. Since the opening 22 of the discharge vessel 6 faces upward, the material falls into the discharge vessel 6 accordingly.

[0055] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0056] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0057] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A shearing device for material bags, characterized in that: It comprises a caliper for clamping a material bag and a slice for cutting the material bag, the jaws of the caliper are clamped on both sides of the material bag after closing to form a clamping gap, the slice is abutted against the clamping gap, the cutting edge line of the slice passes through the clamping gap, the cutting edge line forms an angle of 90° with the clamping gap, and the cutting edge line moves along the extension direction of the clamping gap; the caliper is equipped with a clamping support platform, the caliper comprises two clamping blocks movably arranged on the clamping support platform, the clamping sections of the clamping blocks extend out of the clamping support platform, and the two clamping sections are clamped on both sides of the material bag; a clamping groove is provided on one side of the two clamping blocks away from the clamping support platform, the clamping groove extends in a direction perpendicular to the movement of the clamping block, and the outer side of the clamping groove is provided with a There is a first rotating disk, and two clamping protrusions are provided on the first rotating disk at positions on the same circumference, and each of the clamping protrusions is embedded in the corresponding clamping groove, and drives the two clamping blocks to move with the rotation of the first rotating disk; the clamping support platform is provided with a limiting frame spanning the outside of the two clamping blocks, and the slice comprises a connected moving part and a cutting part, the moving part is movably arranged on the inner side of the limiting frame, and the cutting part is attached to the gap between the two clamping blocks; the moving part is provided with a sliding groove extending in the same direction as the moving direction of the clamping blocks, and a second rotating disk is provided on the outside of the sliding groove, and a slider rotating along the circumferential direction is provided on the second rotating disk, and the slider is embedded in the sliding groove, and drives the moving part to move with the rotation of the second rotating disk.

2. The material bag cutting device according to claim 1, characterized in that: The caliper has a planar structure on one side of the clamping gap, and the slice moves close to the planar structure.

3. An integrated unloading system using the shearing device for material bags as claimed in claim 1 or 2, characterized in that: It includes the shearing device, a rotating mechanism and a retaining frame connected to the clamping support platform. The retaining frame is fixed to a side of the clamping support platform corresponding to the clamping section and is located below the clamping section. The retaining frame is provided with an opening coaxially arranged with the jaws. After the material bag passes through the opening, it is located inside the jaws. The rotating mechanism drives the clamping support platform to flip with the retaining frame. The retaining frame supports the material bag in an inverted state and discharges the material through the opened jaws.

4. The integrated unloading system according to claim 3, characterized in that: It also includes a conveying mechanism, which includes a feeding wheel with a horizontally arranged rotating axis, and the feeding wheel includes a clamping area located between its two blades and used to clamp the material bag, and each of the clamping areas with a corresponding material bag alternately passes through the opening.

5. The integrated unloading system according to claim 4, characterized in that: The opening is respectively provided with a front edge and a rear edge on both sides along the rotation direction of the feeding wheel. The length of the part of the material bag extending out of the blade is less than the radial distance between the front edge and the blade. The rear edge is close to the outer circumference of the blade when it rotates. After the material bag passes over the front edge, it abuts against the rear edge and passes upward through the opening driven by the blade.

6. A method for unloading bagged materials using the integrated unloading system according to claim 5, characterized in that: The steps include: Feeding: The feeding wheel clamps the material bag and rotates. Part of the material bag passes over the front edge and abuts against the rear edge. Driven by the blade, it passes upward through the opening of the retainer and then through the jaws of the caliper. Clamping: The two clamps of the caliper are close to each other and clamp the material bag; Flipping: The rotating mechanism is used to drive the clamping support platform to flip 90 degrees, and the material bag clamped by the caliper is kept on the rear edge; Shearing: Start the slicer to stick to the clamping gap and move along the extension direction of the clamping gap to cut the material bag; Dumping: The rotating mechanism is used again to drive the clamping support platform to flip 90 degrees. The material bag is held in an inverted position by the retaining frame, and the material falls out from the cut portion of the material bag by its own gravity.

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