An automatic bag-breaking and impurity-removing device for ton bag packaged materials

Abstract

This invention discloses an automatic bag-breaking and impurity-removing device for ton-bag packaged materials, comprising multiple support pillars, each support pillar fixing a tank with an upper opening, and a discharge port at the bottom of the tank; a central column with spikes at the top is arranged in the center of the tank, and multiple bag-breaking rods are circumferentially distributed between the central column and the inner wall of the tank, each bag-breaking rod being equipped with a saw blade; a slidable push plate is arranged between the gaps of the bag-breaking rods on the inner wall of the tank; a filter screen is arranged on the inner wall of the tank below the bag-breaking rods and push plate; compared with the prior art, this invention has the effects of efficient bag breaking, precise impurity removal, flexible adjustment, buffering and damage prevention, vibration anti-clogging, and synchronous material pushing.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, specifically to an automatic bag-breaking and impurity-removing device for ton-bag packaged materials. Background Technology

[0002] A ton bag is a flexible transport packaging container made of polyester fibers such as polypropylene and polyethylene. It can be widely used for packaging various powdery and granular items. The ton bag feeding process involves transporting the ton bags containing materials to the designated feeding station and then breaking the bags to allow the materials inside to be put into the silo or the next process.

[0003] In existing technologies, fixed-blade bag-breaking devices rely entirely on the weight of the ton bag itself to complete the cutting. When the material inside the ton bag is insufficient in weight, the opening is often too small, resulting in poor bag-breaking effect and slow material discharge. Existing devices generally lack effective material pushing or flow-aiding mechanisms, causing material to easily accumulate or even bridge in the bag-breaking area after pouring out of the ton bag. The blades or blade arms in existing devices are mostly fixed, and their tilt angle and height cannot be adjusted according to the actual size of the ton bag and the material accumulation state. When processing ton bags of different sizes, the cutting position and angle are mismatched, leading to unstable bag-breaking effect and even problems such as bag displacement, inconsistent bag-breaking positions, and material residue.

[0004] Therefore, it is necessary to provide an automatic bag-breaking and impurity-removing device for ton-bag packaged materials to solve the problems mentioned in the background art. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic bag-breaking and impurity-removing device for ton bag packaged materials, comprising multiple support columns, wherein a tank with an upper opening is fixed to the support columns, and a discharge port is opened at the bottom of the tank.

[0006] The tank has a central column with spikes at the top, and multiple bag-breaking rods are distributed circumferentially between the central column and the inner wall of the tank. The bag-breaking rods are equipped with saw blades.

[0007] A sliding push plate is provided between the gaps of the bag-breaking rods on the inner wall of the tank.

[0008] A filter screen is installed on the inner wall of the tank under the bag-breaking rod and push plate.

[0009] Furthermore, the tank sidewall is rotatably provided with multiple vertical turntables that pass through it, and each of the bag-breaking rods slides through the turntables respectively;

[0010] A sleeve is rotatably fitted on the outer wall of the central column, and one end of each of the bag-breaking rods is hinged to the sleeve.

[0011] Furthermore, a bracket is fixed to the inner wall of the tank below the filter screen, a fixed cylinder is fixed to the center of the bracket, a sliding cylinder is slidably arranged above the fixed cylinder, the upper part of the sliding cylinder is connected to the filter screen, the central column is fixed to the center of the filter screen, and a servo telescopic cylinder is arranged between the fixed cylinder and the sliding cylinder.

[0012] Furthermore, the filter screen is rotatably mounted on the sliding cylinder, and a filter screen driving device capable of driving the filter screen to rotate is provided inside the sliding cylinder.

[0013] Furthermore, a slide bar is slidably disposed in the bag-breaking rod, and the saw blade is disposed in the slide bar;

[0014] The bag-breaking rod is rotatably equipped with a pulley at one end near the center of the tank, and a pull rope is wound in the pulley, with one side of the pull rope fixed to the slide bar;

[0015] The end of the bag-breaking rod away from the center of the tank is respectively provided with a first gear and a second gear that mesh with each other, and the two ends of the pull rope are respectively wound into the rotating shafts inside the first gear and the second gear.

[0016] Furthermore, the bag-breaking rod is equipped with a rope-pulling drive device capable of driving the first gear or the second gear to rotate.

[0017] Furthermore, the saw blade is slidably disposed in the slide bar, a driven gear is rotatably disposed in the slide bar, a connecting rod is hinged to the side wall of the driven gear, and the other end of the connecting rod is hinged to the saw blade;

[0018] A rack is provided on one side of the bag-breaking rod, and the driven gear meshes with the rack.

[0019] Furthermore, a sliding rod and a lead screw are fixed to the back of the push plate, and the sliding rod and lead screw slide through the side wall of the tank.

[0020] The outer wall of the tank is rotatably provided with multiple hollow bevel gear cylinders, and the inner wall of each bevel gear cylinder is threadedly connected to each lead screw.

[0021] The outer wall of the tank is rotatably fitted with a toothed ring, and the toothed ring meshes with each bevel gear cylinder.

[0022] Furthermore, the outer wall of the tank is provided with a gear ring drive device capable of driving the gear ring to rotate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] In this invention, the spikes on the central column at the top of the device can first pierce the center of the bottom of the ton bag, causing the material inside the bag to leak out in advance; subsequently, multiple bag-breaking rods distributed around the circumference and the saw blades installed on them simultaneously cut from multiple directions during the ton bag's descent, which can quickly tear the bag into strips or sheets, avoiding the drawbacks of traditional single-point ruptures that are prone to clogging, realizing the large-flow, unobstructed discharge of materials, and significantly shortening the unloading time.

[0025] In this invention, the push plate set between the bag-breaking rods can slide back and forth, actively pushing the material adhering to the inner wall of the ton bag or accumulating in the bag-breaking area towards the center or bottom of the tank, effectively preventing the material from accumulating in the bag-breaking area, ensuring that the material continuously falls to the discharge port, significantly improving the discharge efficiency and reducing manual intervention.

[0026] In this invention, the filter screen installed at the bottom of the tank can accurately intercept impurities with a particle size larger than the mesh size, allowing only pure fine materials to pass through and fall towards the discharge port, ensuring the purity of the produced material from the source. At the same time, the filter screen has a rotating function, and under the action of centrifugal force, the material is evenly thrown from the center to the surrounding edges, increasing the effective screening area and allowing fine materials to quickly pass through the mesh, further improving screening efficiency.

[0027] In this invention, the tilt angle of the bag-breaking rod, the height of the central column and the filter screen can be adjusted by the telescopic cylinder, thereby actively changing the cutting posture according to the actual size of the ton bag and the material accumulation state. It can adapt to packaging bags of different specifications without changing the hardware, and has strong versatility and ease of operation.

[0028] In this invention, the bag-breaking rod is equipped with a sliding strip that can slide along the rod body, and the saw blade is set in the sliding strip. The cutting position of the saw blade can be changed by pulling the rope. At the same time, when the sliding strip slides, the gear and rack mechanism drives the connecting rod to push the saw blade to generate high-frequency reciprocating motion, making the cutting action more intense and thorough, greatly improving the tearing ability of the ton bag material, and is especially suitable for heavy or tough packaging bags. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of an automatic bag-breaking and impurity-removing device for ton-bag packaged materials;

[0030] Figure 2 This is a schematic diagram of the internal structure of the tank;

[0031] Figure 3 This is a schematic diagram of the cross-sectional structure of the tank at the point where the bag-breaking rod is located.

[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the tank at the push plate location;

[0033] Figure 5 This is a schematic diagram of the bag-breaking rod.

[0034] In the diagram: 1. Support column; 2. Tank body; 21. Discharge port; 22. Gear ring; 23. Gear ring drive device; 24. Support; 3. Central column; 31. Sleeve; 4. Bag breaking rod; 41. Turntable; 42. Saw blade; 43. Sliding bar; 44. Pull rope; 45. First gear; 46. Second gear; 47. Pull rope drive device; 48. Pulley; 49. Driven gear; 410. Connecting rod; 411. Rack; 5. Push plate; 51. Sliding rod; 52. Lead screw; 53. Bevel gear cylinder; 6. Filter screen; 61. Fixed cylinder; 62. Sliding cylinder; 63. Telescopic cylinder; 64. Filter screen drive device. Detailed Implementation

[0035] Please see Figures 1-5 In this embodiment of the invention, an automatic bag-breaking and impurity-removing device for ton bag packaged materials includes multiple support columns 1, with an upper-opening tank 2 fixed to each support column 1, and a discharge port 21 opened at the bottom of the tank 2.

[0036] The tank body 2 has a central column 3 with spikes on the top, and multiple bag-breaking rods 4 are distributed circumferentially between the central column 3 and the inner wall of the tank body 2. The bag-breaking rods 4 are equipped with saw blades 42.

[0037] A sliding push plate 5 is provided in the gap between the bag-breaking rod 4 on the inner wall of the tank body 2;

[0038] A filter screen 6 is provided on the inner wall of the tank 2 below the bag-breaking rod 4 and the push plate 5.

[0039] The sharp spikes at the top of the central column 3 first pierce the center of the bottom of the ton bag. Then, as the ton bag falls under gravity, it is cut open from multiple angles by multiple circumferentially distributed bag-breaking rods 4 and their saw blades 42. This ensures that the ton bag is completely torn into strips or pieces in a short time, preventing the material inside the bag from getting clogged due to a small single-point opening, thus achieving a large flow of material discharge.

[0040] During the bag breaking process, the push plate 5 located between the bag breaking rods will slide back and forth, which can force the material on the inner wall of the ton bag to the center or bottom of the tank 2, ensuring that the material falls completely to the discharge port 21, effectively preventing the material from accumulating and blocking in the bag breaking area, and improving the discharge efficiency.

[0041] Only pure materials with a particle size smaller than the mesh can pass through and fall to the discharge port 21; while all impurities larger than the mesh (including small plastic pieces, thread ends, and hard lumps) will be intercepted on the filter screen, thereby significantly improving the purity of the output material.

[0042] In this embodiment, the side wall of the tank 2 is rotatably provided with a plurality of vertical turntables 41 through which it passes, and each of the bag-breaking rods 4 slides through the turntables 41 respectively;

[0043] The outer wall of the central column 3 is rotatably fitted with a sleeve 31, and one end of each of the bag-breaking rods 4 is hinged to the sleeve 31.

[0044] The turntable 41 allows the bag-breaking rod 4 to rotate, changing its tilt angle. The turntable 41 also ensures the sealing of the side wall of the tank 2. Based on the actual size and stacking state of the material bag, the cutting posture is actively adjusted to achieve the best bag-breaking effect without replacing the hardware.

[0045] In this embodiment, a bracket 24 is fixed to the inner wall of the tank 2 below the filter screen 6, a fixed cylinder 61 is fixed to the center of the bracket 24, a sliding cylinder 62 is slidably arranged above the fixed cylinder 61, the upper part of the sliding cylinder 62 is connected to the filter screen 6, the central column 3 is fixed to the center of the filter screen 6, and a servo telescopic cylinder 63 is arranged between the fixed cylinder 61 and the sliding cylinder 62.

[0046] The height of the filter screen 6, the central column 3 and the sleeve 31 can be changed by the telescopic cylinder 63, thereby actively adjusting the tilt angle of the bag-breaking rod 4;

[0047] Furthermore, when the central column 3 is subjected to a downward impact, it will cause the filter screen 6 and the sliding cylinder 62 to slide downward along the fixed cylinder 61 as a buffer stroke, transforming the hard rigid collision into a flexible sliding buffer, effectively preventing the central column 3 from breaking at the root, the filter screen 6 from tearing, or the tank body 2 support 24 from deforming, thus extending the service life of the core components of the equipment.

[0048] In addition, the servo telescopic cylinder 63 has high-frequency reciprocating telescopic capability. During the discharge process, it can lift and retract at a set frequency, causing the filter screen 6 and the ton bag to generate controllable pulse vibration, which can shake the particles down and is an effective anti-clogging measure.

[0049] In this embodiment, the filter screen 6 is rotatably mounted on the sliding cylinder 62, and the sliding cylinder 62 is provided with a filter screen driving device 64 capable of driving the filter screen 6 to rotate.

[0050] When the filter screen 6 rotates, the accumulated material is subjected to centrifugal force, and the material will be evenly thrown from the center of the filter screen 6 to the surrounding edges, which not only increases the effective screening area, but also allows fine materials to pass through the mesh quickly.

[0051] In this embodiment, a slide bar 43 is slidably disposed in the bag-breaking rod 4, and the saw blade 42 is disposed in the slide bar 43;

[0052] The end of the bag-breaking rod 4 near the center of the tank body 2 is rotatably equipped with a pulley 48, and a pull rope 44 is wound in the pulley 48. One side of the pull rope 44 is fixed to the slide bar 43.

[0053] The end of the bag-breaking rod 4 away from the center of the tank body 2 is respectively provided with a first gear 45 and a second gear 46 that mesh with each other, and the two ends of the pull rope 44 are respectively wound into the rotating shafts inside the first gear 45 and the second gear 46.

[0054] In this embodiment, the bag-breaking rod 4 is equipped with a rope-pulling drive device 47 that can drive the first gear 45 or the second gear 46 to rotate.

[0055] The forward and reverse rotation of the rope drive device 47 can control the winding direction of the rope 44, thereby driving the slide bar 43 and the saw blade 42 to move and change the cutting position.

[0056] In this embodiment, the saw blade 42 is slidably disposed in the slide bar 43, and a driven gear 49 is rotatably disposed in the slide bar 43. A connecting rod 410 is hinged to the side wall of the driven gear 49, and the other end of the connecting rod 410 is hinged to the saw blade 42.

[0057] A rack 411 is provided on one side of the bag-breaking rod 4, and the driven gear 49 meshes with the rack 411.

[0058] In other words, when the slide bar 43 slides along the bag-breaking rod 4, the driven gear 49 will rotate under the action of the rack 411, thereby causing the connecting rod 410 to push the saw blade 42 to move back and forth, so as to improve the cutting efficiency.

[0059] In this embodiment, a slide rod 51 and a lead rod 52 are fixed on the back of the push plate 5, and the slide rod 51 and the lead rod 52 slide through the side wall of the tank body 2;

[0060] The outer wall of the tank body 2 is rotatably provided with a plurality of hollow bevel gear cylinders 53, and the inner wall of each bevel gear cylinder 53 is threadedly connected to each lead screw 52.

[0061] The outer wall of the tank body 2 is rotatably fitted with a toothed ring 22, and the toothed ring 22 meshes with each bevel gear cylinder 53.

[0062] In this embodiment, the outer wall of the tank body 2 is provided with a gear ring drive device 23 capable of driving the gear ring 22 to rotate.

[0063] The gear ring drive device 23 drives the gear ring 22 to rotate. The gear ring 22 simultaneously meshes with all the circumferentially distributed bevel gear cylinders 52, so that the linear extension / retraction of each screw 52 is equal, and the material on the inner wall of the ton bag is evenly pushed to the center or bottom of the tank body 2.

[0064] In practice, the ton bag containing the material is hoisted above the tank 2, so that the bottom center of the ton bag is aligned with the spike of the central column 3, and then the ton bag is slowly lowered.

[0065] The spikes at the top of the central column 3 first pierce the center of the bottom of the ton bag, and the material inside the bag begins to leak out. As the ton bag continues to fall, the bag body comes into contact with the multiple bag-breaking rods 4 and the saw blades 42 distributed around the circumference, and is cut and torn into strips or sheets from multiple angles, ensuring that the material inside the bag is poured out quickly and in large volume.

[0066] The gear ring drive device 23 drives the gear ring 22 to rotate. The gear ring simultaneously meshes with each bevel gear cylinder 53, driving the lead screw 52 and slide bar 51 to move linearly. This causes multiple push plates 5 distributed around the circumference to extend or retract synchronously and evenly. During the bag breaking process, the push plates 5 located between the bag breaking rods slide back and forth, forcibly pushing the material adhering to the inner wall of the ton bag or accumulated in the bag breaking area towards the center or bottom of the tank body 2, preventing the material from accumulating and blocking in the bag breaking area, and improving the discharge efficiency.

[0067] The falling material falls onto the filter screen 6. Pure material with a particle size smaller than the mesh size passes through the filter screen 6 and is discharged through the discharge port 21 at the bottom of the tank 2. Impurities larger than the mesh size are intercepted on the filter screen 6, thereby achieving the separation of material and impurities.

[0068] The servo telescopic cylinder 63 can drive the filter screen 6, the central column 3 and the sleeve 31 to reciprocate at a high frequency according to a set frequency, so that the filter screen 6 and the ton bag generate pulse vibration, which helps the particles pass through the mesh smoothly and avoids clogging. The filter screen drive device 64 drives the filter screen 6 to rotate, so that the material is evenly dispersed from the center to the edge under the action of centrifugal force, increasing the effective screening area and improving screening efficiency.

[0069] Based on the actual size of the ton bag and the material accumulation status, the cutting posture can be actively adjusted in the following ways: by raising and lowering the filter screen 6 and the central column 3 through the telescopic cylinder 63, the relative height of the bag breaking rod 4 can be adjusted so that the saw blade is always in the best cutting position without the need to replace hardware.

[0070] The rope drive device 47 inside the bag-breaking rod 4 drives the slide bar 43 and the saw blade 42 to slide along the bag-breaking rod, changing the cutting position; at the same time, when the slide bar 43 slides, the driven gear 49 rotates under the action of the rack 411, and pushes the saw blade 42 to generate reciprocating motion through the connecting rod 410, further improving the cutting efficiency and the tearing effect of the bag.

[0071] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic bag-breaking and impurity-removing device for ton-bag packaged materials, comprising multiple support pillars (1), characterized in that, The support column (1) is fixed with a tank (2) with an upper opening, and a discharge port (21) is opened at the bottom of the tank (2). The tank (2) has a central column (3) with spikes on top, and multiple bag-breaking rods (4) are distributed circumferentially between the central column (3) and the inner wall of the tank (2). The bag-breaking rods (4) are equipped with saw blades (42). A sliding push plate (5) is provided between the gaps of the bag-breaking rod (4) on the inner wall of the tank (2); A filter screen (6) is provided on the inner wall of the tank (2) under the bag-breaking rod (4) and push plate (5).

2. The automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 1, characterized in that, The side wall of the tank (2) is rotatably provided with multiple vertical turntables (41) that pass through it, and each of the bag-breaking rods (4) slides through the turntables (41). The outer wall of the central column (3) is rotatably fitted with a sleeve (31), and one end of each of the bag-breaking rods (4) is hinged to the sleeve (31).

3. The automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 1, characterized in that, A bracket (24) is fixed to the inner wall of the tank (2) below the filter (6). A fixed cylinder (61) is fixed to the center of the bracket (24). A sliding cylinder (62) is slidably arranged above the fixed cylinder (61). The upper part of the sliding cylinder (62) is connected to the filter (6). The central column (3) is fixed to the center of the filter (6). A servo telescopic cylinder (63) is arranged between the fixed cylinder (61) and the sliding cylinder (62).

4. The automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 3, characterized in that, The filter screen (6) is rotatably mounted on the sliding cylinder (62), and the sliding cylinder (62) is provided with a filter screen driving device (64) capable of driving the filter screen (6) to rotate.

5. The automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 1, characterized in that, The bag-breaking rod (4) is slidably provided with a slide bar (43), and the saw blade (42) is provided in the slide bar (43); The bag-breaking rod (4) is rotatably equipped with a pulley (48) at one end near the center of the tank body (2). A pull rope (44) is wound in the pulley (48), and one side of the pull rope (44) is fixed to the slide bar (43). The bag-breaking rod (4) is provided with a first gear (45) and a second gear (46) that mesh with each other at one end away from the center of the tank (2), and the two ends of the pull rope (44) are respectively wound into the shafts inside the first gear (45) and the second gear (46).

6. An automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 5, characterized in that, The bag-breaking rod (4) is equipped with a rope-pulling device (47) that can drive the first gear (45) or the second gear (46) to rotate.

7. An automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 6, characterized in that, The saw blade (42) is slidably disposed in the slide bar (43), and a driven gear (49) is rotatably disposed in the slide bar (43). A connecting rod (410) is hinged to the side wall of the driven gear (49), and the other end of the connecting rod (410) is hinged to the saw blade (42). A rack (411) is provided on one side of the bag-breaking rod (4), and the driven gear (49) meshes with the rack (411).

8. An automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 1, characterized in that, The push plate (5) is fixed with a slide rod (51) and a lead screw (52) on the back, and the slide rod (51) and the lead screw (52) slide through the side wall of the tank body (2); The outer wall of the tank (2) is rotatably provided with a plurality of hollow bevel gear cylinders (53), and the inner wall of each bevel gear cylinder (53) is threadedly connected to each lead screw (52); The outer wall of the tank (2) is fitted with a toothed ring (22), and the toothed ring (22) meshes with each bevel gear cylinder (53).

9. An automatic bag-breaking and impurity-removing device for ton-bag packaged materials according to claim 8, characterized in that, The outer wall of the tank (2) is provided with a gear ring drive device (23) capable of driving the gear ring (22) to rotate.

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