Ton bag breaking and discharging device

Abstract

The application relates to the field of ton bag unpacking, and provides a ton bag breaking and discharging device, which comprises a grabbing assembly and a bag breaking assembly; the grabbing assembly is used for lifting and transferring the ton bag; the bag breaking assembly comprises a stand, a first connecting rod, a second connecting rod, a first sliding seat, an unfolding driving unit and a silk thread; a cutter head is arranged at the top of the stand; the first sliding seat is slidably arranged on the stand; a plurality of first connecting rods are arranged at intervals in the circumferential direction, one end of the first connecting rod is hingedly connected with the first sliding seat, adjacent first connecting rods are connected through the silk thread, the second connecting rod is hingedly connected with the first connecting rod and the stand, the unfolding driving unit is used for driving the first sliding seat to slide, in a first state, the ends, away from the first sliding seat, of the plurality of first connecting rods are gathered together, in a second state, the ends, away from the first sliding seat, of the plurality of first connecting rods are away from each other and abut against the inner wall of the ton bag, the silk thread is in a straightened state and is attached to the inner wall of the ton bag one by one. The application solves the problem that the ton bag is not completely discharged.

Description

Technical Field

[0001] This application relates to the field of ton bag unpacking, and more particularly to a ton bag breaking and unloading device. Background Technology

[0002] In industrial production, ton bags, as a common form of large-capacity packaging, are widely used for the storage and transportation of various powdery and granular materials. With the continuous expansion of industrial scale, the demand for efficient unloading of materials from ton bags is increasing. This not only relates to improving production efficiency but also affects production cost control and the quality of the production environment. Efficient ton bag unloading technology can significantly improve material handling speed, reduce manual intervention, and lower labor intensity, thereby bringing higher economic benefits to enterprises.

[0003] Traditional methods for unloading ton bags mainly include the following: One method is manual unloading, where workers manually cut open the ton bag with a knife and then pour out the material. While simple and direct, this method is inefficient, requires a large workforce, and is extremely physically demanding when handling heavy or large ton bags. Another method uses simple mechanical devices, such as lifting the ton bag with a hook and moving it so that the bottom of the bag moves relative to a vertically positioned cutter, which then cuts open the bottom. While this method is more efficient, material tends to remain inside the ton bag. Although some factories use vibration or tapping to reduce material residue, the effect on cleaning material stuck in corners or adhering to the inner wall of the ton bag is still limited. Especially after most of the material has been discharged, the ton bag deforms and collapses, creating folds that more easily trap material, and tapping the bag at this point is less effective at discharging. Summary of the Invention

[0004] To address the problem of incomplete material discharge from ton bags, this application provides a ton bag breaking and unloading device.

[0005] The ton bag breaking and unloading device provided in this application adopts the following technical solution: A ton bag unloading device includes: The gripping component is used to lift and transfer ton bags; The bag-breaking assembly includes a column, a first connecting rod, a second connecting rod, a first sliding seat, an unfolding drive unit, and a thread. The top of the column is equipped with a cutter head for cutting the bottom surface of the ton bag. The first sliding seat is slidably mounted on the column. Multiple first connecting rods are arranged circumferentially around the column, with one end of each first connecting rod hinged to the first sliding seat. The ends of adjacent first connecting rods furthest from the first sliding seat are connected via the thread. One end of each second connecting rod is hinged to a corresponding first connecting rod, and the other end is hinged to the column. The unfolding drive unit is connected to the first sliding seat and drives the first sliding seat to slide, thereby switching the bag-breaking assembly between a first state and a second state. In the first state, the ends of the multiple first connecting rods that are away from the first sliding seat converge with each other; In the second state, the ends of the multiple first connecting rods away from the first sliding seat are separated from each other and abut against the inner wall of the ton bag, and the threads are taut and attached to the inner sidewalls of the ton bag one by one.

[0006] By adopting the above technical solution, the gripping component can lift and transport the ton bag. By making the bottom of the ton bag contact the cutter head and move relative to it, the bottom of the ton bag can be cut open, thereby achieving unloading. The bag-breaking component can switch between a first state and a second state. In the first state, the ends of multiple first connecting rods away from the first sliding seat converge with each other, thereby realizing the storage and folding of the first connecting rods and avoiding interference with the ton bag. In the second state, the ends of multiple first connecting rods away from the first sliding seat move away from each other and abut against the inner wall of the ton bag. The threads are taut and adhere to the inner side wall of the ton bag, thereby supporting the ton bag after unloading, preventing the ton bag from deforming and collapsing, reducing material residue, and by making the ton bag move relative to the first connecting rods, the threads can be used to scrape off the material attached to the inner side wall of the ton bag.

[0007] Optionally, the ton bag has a rectangular cross-section; In the second state, the end of the first connecting rod away from the first sliding seat abuts against each of the vertical edges of the ton bag, and the thread is attached to each of the inner sidewalls of the ton bag.

[0008] By adopting the above technical solution, when the cross-section of the ton bag is rectangular, in the second state, the end of the first connecting rod away from the first sliding seat abuts against each vertical edge of the ton bag, which can more accurately open the ton bag and keep each wall of the ton bag as flat as possible, making it easier for the wire to scrape the material.

[0009] Optionally, the first link has a cutting portion; in the second state, the cutting portion faces downward and is used to cut the bottom surface of the ton bag.

[0010] By adopting the above technical solution, in the second state, the cutting part of the first connecting rod can cut the bottom surface of the ton bag with the first connecting rod facing downward, which is conducive to the discharge of residual materials. In addition, for rectangular ton bags, the bottom wall of the ton bag and the two adjacent side walls can form a corner together. In the second state, the end of the first connecting rod away from the first sliding seat abuts against each vertical edge of the rectangular ton bag. When the first connecting rod moves downward relative to the ton bag, the cutting part can cut the bottom surface of the ton bag along the diagonal, thereby destroying the corner and preventing material residue.

[0011] Optionally, a second sliding seat is slidably provided on the column, the second sliding seat being located above the first sliding seat, and the cutter head being disposed on the second sliding seat; The column is also provided with two limiting blocks, which are respectively located on opposite sides of the second sliding seat along the axial direction of the column. The deployment drive unit includes a telescopic component. The deployment drive unit is connected to the first sliding seat and the second sliding seat respectively, and is used to drive the first sliding seat and the second sliding seat to move closer or further away from each other. The first sliding seat and the second sliding seat are configured such that when the deployment drive unit extends or retracts, the second sliding seat slides before the first sliding seat until the second sliding seat abuts against the limiting block. The column is tubular, and when the second sliding seat abuts against the limiting block near the first sliding seat, the cutter head is retracted into the column.

[0012] By adopting the above technical solution, when the drive unit extends and retracts, the first sliding seat and the second sliding seat move closer to each other or further apart. When they move further apart, multiple first connecting rods gradually retract and converge, and the cutter head gradually extends out of the column to cut the bottom of the ton bag. When they move closer together, the first connecting rods gradually extend to support the ton bag, while the cutter head gradually retracts into the column to avoid damage to the cutter head and other safety hazards. The second sliding seat slides before the first sliding seat, so that after the cutter head switches states, whether the first connecting rod switches states can be selected according to actual needs, enhancing applicability. In addition, for ton bags of different specifications, the degree of extension of the first connecting rod in the second state is different. By setting the second sliding seat to slide before the first sliding seat, it can be ensured that the complete extension and complete retraction of the cutter head can be achieved.

[0013] Optionally, the column is provided with a strip-shaped hole; both the first sliding seat and the second sliding seat have a concave portion, which passes through the strip-shaped hole and extends into the interior of the column; the unfolding drive unit is disposed inside the column, and the unfolding drive unit is connected to the concave portion of the first sliding seat and the concave portion of the second sliding seat respectively.

[0014] By adopting the above technical solution, the deployment drive unit is set inside the column and connected to the inner recess of the first and second sliding seats through the strip hole. This can protect the deployment drive unit from the influence of the external environment, while making the device structure more compact and reducing the space occupied.

[0015] Optionally, a roller is provided at the end of the first connecting rod away from the first sliding seat.

[0016] By adopting the above technical solution, in the second state, the ends of the multiple first connecting rods away from the first sliding seat abut against the inner wall of the ton bag. The rollers set at the ends of the first connecting rods away from the first sliding seat can reduce the friction between the first connecting rods and the inner wall of the ton bag, making the first connecting rods smoother in contact with and move against the inner wall of the ton bag, and reducing damage to the ton bag.

[0017] Optionally, the ton bag breaking and unloading device further includes a winding device, which is correspondingly located at the end of the first connecting rod away from the first sliding seat; one end of the thread is connected to the winding device on one of the corresponding first connecting rods, and the other end is connected to the other corresponding first connecting rod; the winding device is used to automatically wind up the thread.

[0018] By adopting the above technical solution, the winding device is located at the end of the first connecting rod away from the first sliding seat. The two ends of the wire are respectively connected to the winding device and another first connecting rod. The winding device can automatically wind up the wire, so that the wire can be kept taut no matter how the first connecting rod is unfolded, thus adapting to ton bags of different specifications.

[0019] Optionally, the ton bag breaking and unloading device further includes a lifting assembly, which is connected to the column and used to drive the column to rise and fall.

[0020] By adopting the above technical solution, the lifting component can drive the column to rise and fall, which can better adjust the relative position of the bag breaking component and the ton bag, making it easier to break the ton bag at different heights. In addition, when the bottom of the ton bag is broken, the lifting component can drive the first connecting rod to extend into the ton bag so that the first connecting rod can support the ton bag in the second state.

[0021] Optionally, the ton bag breaking and unloading device further includes a dustproof box and a feeding hopper; The feeding hopper is located below the dustproof box, and the bottom of the dustproof box is connected to the top of the feeding hopper; The bag-breaking assembly is located inside the dustproof box.

[0022] By adopting the above technical solution, the grabbing component lifts and transfers the ton bag, and the bag breaking component breaks the ton bag and unloads it in the dustproof box. The dustproof box can prevent dust from being blown out during the unloading process. The feeding hopper is located below the dustproof box and is connected to the dustproof box, so that the material can fall from the dustproof box into the feeding hopper to complete the unloading.

[0023] Optionally, the ton bag breaking and unloading device further includes a bag-tapping assembly, which includes a bag-tapping drive unit and a bag-tapping component. The bag-tapping component is located inside the dustproof box. The bag-tapping drive unit is located on the dustproof box and is connected to the bag-tapping component, and is used to drive the bag-tapping component to strike the ton bag.

[0024] By adopting the above technical solution, the bag-tapping drive unit of the bag-tapping assembly drives the bag-tapping component to strike the ton bag, which can promote smoother unloading of materials inside the ton bag, improve unloading efficiency and thoroughness.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The gripping component can lift and transport the ton bag. By making the bottom of the ton bag contact the cutter head and move relative to it, the bottom of the ton bag can be cut open, thereby achieving unloading. After the bottom of the ton bag is cut open, the bag breaking component can switch to the second state. In the second state, the ends of multiple first connecting rods away from the first sliding seat are separated from each other and abut against the inner wall of the ton bag. The wires are taut and attached to the inner side wall of the ton bag, thereby supporting the unloaded ton bag, preventing the ton bag from deforming and collapsing, and reducing material residue. By making the ton bag move relative to the first connecting rods, the wires can scrape off the material attached to the inner side wall of the ton bag. Furthermore, by setting the degree of separation between the ends of multiple first connecting rods away from the first sliding seat, it can adapt to ton bags of different specifications. 2. In the second state, the end of the first connecting rod away from the first sliding seat abuts against each vertical edge of the ton bag, which can more accurately open the ton bag and keep each wall of the ton bag as flat as possible, which is convenient for the wire to scrape the material. When the first connecting rod moves downward relative to the ton bag, the cutting part can cut the bottom surface of the ton bag along the diagonal, thereby destroying the bottom corner of the ton bag and avoiding material residue. 3. When the drive unit extends and retracts, the first sliding seat and the second sliding seat move closer to each other or further apart. When they move further apart, multiple first connecting rods gradually retract and converge, and the cutter head gradually extends out of the column to cut the bottom of the ton bag. When they move closer together, the first connecting rods gradually extend to support the ton bag, while the cutter head gradually retracts into the column to avoid damage to the cutter head and other safety hazards. The second sliding seat slides before the first sliding seat, so that after the cutter head switches states, whether the first connecting rod switches states can be selected according to actual needs, enhancing applicability. Attached Figure Description

[0026] Figure 1This is a three-dimensional schematic diagram of the ton bag breaking and unloading device provided in this application; Figure 2 This is a schematic diagram of the structure of the ton bag breaking and unloading device in the first embodiment provided in this application; Figure 3 This is a schematic diagram of the structure of the ton bag breaking and unloading device in the first state in the second embodiment provided in this application; Figure 4 This application provides Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the ton bag breaking and unloading device in the second embodiment provided in this application when the bag breaking component is in the second state; Figure 6 This application provides Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the structure of the bag-breaking component in the second state in the second embodiment provided in this application.

[0027] Explanation of reference numerals in the attached figures: 1. Dustproof box; 11. Door opening and closing mechanism; 2. Gripping component; 21. Track; 22. Mounting base; 23. Gripping part; 3. Bag-breaking assembly; 31. Column; 311. Strip hole; 312. Limiting block; 32. Cutting head; 33. Mounting bracket; 34. First connecting rod; 341. Cutting part; 35. Second connecting rod; 36. First sliding seat; 37. Second sliding seat; 38. Unfolding drive unit; 39. Thread; 4. Feed hopper; 5. Bag-tapping assembly; 51. Bag-tapping drive unit; 52. Bag-tapping component; 6. Lifting assembly; 7. Cable reel. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1 to 7 This application will be described in further detail.

[0029] Example 1

[0030] like Figures 1 to 2 As shown in the figure, this application discloses a ton bag breaking and unloading device, including a dustproof box 1, a gripping component 2, a bag breaking component 3, a feeding hopper 4, and a bag tapping component 5.

[0031] Specifically, the dust box 1 has a switch door 11. The body of the dust box 1 is equipped with a cylinder for opening the switch door 11. The two ends of the cylinder are respectively hinged to the body of the dust box 1 and the switch door 11. The switch door 11 can be opened and closed by extending and retracting the cylinder.

[0032] The gripping assembly 2 includes a track 21, a mounting base 22, and a gripping component 23. One end of the track 21 extends into the housing. The mounting base 22 is slidably mounted on the track 21, and the gripping component 23 is mounted on the mounting base 22. The gripping component 23 is used to grip and lift the ton bag, and then the ton bag is transferred into the dustproof housing 1 by sliding the mounting base 22 on the track 21. The gripping component 23 can be an electric hoist, which lifts the ton bag by hoisting. The method of driving the mounting base 22 to slide on the track 21 is not strictly limited. For example, the bottom of the mounting base 22 is equipped with wheels, which are driven to rotate by a motor or other components, thereby realizing the movement of the mounting base 22.

[0033] The bag-breaking assembly 3 is located inside the dustproof box 1. The bag-breaking assembly 3 includes a column 31, a cutter head 32, and a mounting frame 33. The column 31 is vertically mounted on the mounting frame 33 and connected to the dustproof box 1 through the mounting frame 33. The cutter head 32 is located on the top of the column 31. After the gripping assembly 2 pulls the ton bag into the dustproof box 1, the bottom of the ton bag contacts the cutter head 32 and moves relative to it, thereby breaking the bottom of the ton bag and discharging the material inside.

[0034] The discharge hopper 4 is located below the dustproof box 1 and is connected to the bottom of the dustproof box 1. The material discharged from the ton bag can fall into the discharge hopper 4 to complete the unloading work.

[0035] The bag-beating assembly 5 includes a bag-beating drive unit 51 and a bag-beating component 52. The bag-beating component 52 is disposed inside the dustproof box 1, and the bag-beating drive unit 51 is disposed on the dustproof box 1. The bag-beating drive unit 51 is connected to the bag-beating component 52 and is used to drive the bag-beating component 52 to beat the ton bag. In this embodiment, the bag-beating component 52 can be a beater, and the bag-beating drive unit 51 can be a cylinder. There can be two sets of bag-beating assemblies 5, which are arranged symmetrically. When the bottom of the ton bag is torn, the material can be discharged by bringing the bag-beating component 52 close to and beating the ton bag.

[0036] Example 2

[0037] The difference between this embodiment and Embodiment 1 is that the unloading method of the ton bag has been optimized.

[0038] like Figures 3 to 7 As shown, specifically, the ton bag breaking and unloading device also includes a lifting assembly 6, which is connected to the column 31 and is used to drive the column 31 to rise and fall. The bag breaking assembly 3 also includes a first connecting rod 34, a second connecting rod 35, a first sliding seat 36, a second sliding seat 37, an unfolding drive unit 38, and a thread 39.

[0039] like Figure 3As shown, in this embodiment, the lifting assembly 6 includes multiple vertically arranged lifting cylinders. These cylinders are mounted on the inner wall of the dustproof box 1 and connected to the mounting frame 33, which is slidably connected to the dustproof box 1. The height of the column 31 can be adjusted by extending and retracting the lifting cylinders.

[0040] like Figure 4 , Figure 6 and Figure 7 As shown, both the first sliding seat 36 and the second sliding seat 37 are slidably mounted on the column 31, and the height of the second sliding seat 37 is higher than that of the first sliding seat 36. The deployment driving unit 38 includes a telescopic component, which is connected to both the first sliding seat 36 and the second sliding seat 37, and is used to drive the first sliding seat 36 and the second sliding seat 37 to move closer or further apart. In this embodiment, the column 31 is tubular. The deployment driving unit 38 can be a cylinder, and it is disposed inside the column 31. The column 31 has a strip-shaped hole 311, and both the first sliding seat 36 and the second sliding seat 37 have concave portions that pass through the strip-shaped hole 311 and extend into the interior of the column 31. The deployment driving unit 38 is connected to the concave portions of the first sliding seat 36 and the second sliding seat 37, respectively. When the deployment driving unit 38 extends or retracts, it can drive the first sliding seat 36 and the second sliding seat 37 to move closer or further apart.

[0041] There are multiple first connecting rods 34, which are arranged circumferentially around the column 31. One end of each first connecting rod 34 is hinged to a first sliding seat 36, and the ends of adjacent first connecting rods 34 away from the first sliding seat 36 are connected by a thread 39. One end of each second connecting rod 35 is hinged to a corresponding first connecting rod 34, and the other end is hinged to the column 31. The cutter head 32 is located on the second sliding seat 37.

[0042] When the expansion drive unit 38 extends or retracts, the bag breaking assembly 3 switches between the first state and the second state.

[0043] Specifically, by extending the unfolding drive unit 38, the first sliding seat 36 and the second sliding seat 37 are moved away from each other, thereby allowing the bag-breaking assembly 3 to reach a first state. For example... Figures 3 to 4 As shown, in the first state, the ends of the multiple first connecting rods 34 that are away from the first sliding seat 36 converge to be stored; at this time, the cutter head 32 is exposed on the column 31 so as to cut the bottom of the ton bag and realize unloading.

[0044] After unloading, the unfolding drive unit 38 retracts, and the first sliding seat 36 and the second sliding seat 37 move closer to each other, thereby allowing the bag-breaking assembly 3 to reach the second state. Figures 5 to 6As shown, in the second state, the cutter head 32 retracts into the column 31; the ends of the multiple first connecting rods 34 away from the first sliding seat 36 move away from each other and abut against the inner wall of the ton bag, thereby opening the ton bag and preventing it from deforming and collapsing after unloading, thus avoiding a small amount of material remaining in the folds formed by the ton bag. In addition, after the ton bag is opened, when the ton bag is tapped by the bag-tapping assembly 5, the remaining material is more easily discharged from the ton bag. In the second state, the threads 39 are taut and attached to the inner sidewalls of the ton bag one by one. By moving the column 31 and the ton bag relative to each other in the vertical direction, the threads 39 can scrape off the material adhering to the inner sidewalls of the ton bag.

[0045] Taking a ton bag with a rectangular cross-section as an example, the number of first connecting rods 34 and second connecting rods 35 can both be four. In the second state, the end of the first connecting rod 34 away from the first sliding seat 36 abuts against each of the vertical edges of the ton bag, and the wires 39 are in contact with each of the inner sidewalls of the ton bag. By driving the column 31 to move relative to the ton bag through the lifting component 6 or the gripping component 2, the wires 39 can scrape the material.

[0046] Furthermore, a roller (not shown in the figure) is provided at the end of the first connecting rod 34 away from the first sliding seat 36. The roller can reduce the friction between the first connecting rod 34 and the ton bag. The first connecting rod 34 has a cutting part 341, which can be a blade. In the second state, the cutting part 341 faces downward. When the first connecting rod 34 moves downward relative to the ton bag, the cutting part 341 can be used to cut the bottom surface of the ton bag. Since the end of the first connecting rod 34 away from the first sliding seat 36 is located at the vertical edge of the ton bag, the cutting part 341 can cut the bottom surface of the ton bag diagonally, thereby destroying the bottom corners of the ton bag and preventing material from being trapped in the corner gaps.

[0047] Furthermore, the ton bag breaking and unloading device also includes a winding device 7. Each winding device 7 is correspondingly located at the end of the first connecting rod 34 furthest from the first sliding seat 36. One end of the thread 39 is connected to the winding device 7 on one of the corresponding first connecting rods 34, and the other end is connected to the other corresponding first connecting rod 34. In this embodiment, the winding device 7 may include a winding reel and a coil spring. The winding reel is connected to the first connecting rod 34 via the coil spring, and the thread 39 is wound around the winding reel. When the ends of multiple first connecting rods 34 furthest from the first sliding seat 36 move away from each other, the thread 39 wound on the winding reel is gradually pulled out, and the coil spring deforms; conversely, when the ends of multiple first connecting rods 34 furthest from the first sliding seat 36 converge, the winding reel gradually winds up the thread 39. Through the above arrangement, the winding reel can automatically wind up the thread 39, thereby keeping the thread 39 always taut to accommodate ton bags of different sizes.

[0048] like Figures 3 to 7As shown, the column 31 is further provided with two limiting blocks 312. The two limiting blocks 312 are respectively provided on opposite sides of the second sliding seat 37 along the axial direction of the column 31. Both limiting blocks 312 are located above the first sliding seat 36. The limiting blocks 312 can be regarded as part of the column 31. When the extension drive unit 38 extends and retracts, the second sliding seat 37 slides before the first sliding seat 36 until the second sliding seat 37 abuts against the limiting blocks 312.

[0049] Specifically, when the unfolding drive unit 38 extends, the second sliding seat 37 first drives the cutter head 32 to rise. When the second sliding seat 37 abuts against the limiting block 312 away from the first sliding seat 36, the cutter head 32 is in a state extending out of the column 31 to cut the ton bag. Afterward, the unfolding drive unit 38 continues to extend, the first sliding seat 36 begins to descend, and the ends of the multiple first connecting rods 34 away from the first sliding seat 36 gradually converge to avoid interference between the first connecting rods 34 and the ton bag. Conversely, when the unfolding drive unit 38 retracts, the second sliding seat 37 first drives the cutter head 32 to descend. When the second sliding seat 37 abuts against the limiting block 312 near the first sliding seat 36, the cutter head 32 is in a state retracted into the column 31. Afterward, the unfolding drive unit 38 continues to retract, the first sliding seat 36 begins to rise, and the ends of the multiple first connecting rods 34 away from the first sliding seat 36 gradually move away from each other to subsequently open the ton bag.

[0050] By setting the second sliding seat 37 to slide before the first sliding seat 36, the extension and retraction states of the cutter head 32 can be independent of the unfolding (the ends of the multiple first connecting rods 34 away from the first sliding seat 36 gradually move away from each other) and retraction (the ends of the multiple first connecting rods 34 away from the first sliding seat 36 gradually move closer to each other) states of the first connecting rod 34. Furthermore, regardless of the degree of unfolding of the first connecting rod 34, the cutter head 32 is always in a fully extended or fully retracted state to accommodate ton bags of different sizes.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ton bag breaking and unloading device, characterized in that, include: Grab component (2) for lifting and transferring ton bags; The bag-breaking assembly (3) includes a column (31), a first connecting rod (34), a second connecting rod (35), a first sliding seat (36), an unfolding drive unit (38), and a thread (39); the top of the column (31) is provided with a cutter head (32), which is used to cut the bottom surface of the ton bag; the first sliding seat (36) is slidably mounted on the column (31); there are multiple first connecting rods (34), which are spaced circumferentially around the column (31), and the first connecting rods (34) are arranged at intervals around the column (31). One end of the first connecting rod (34) is hinged to the first sliding seat (36); the end of the adjacent first connecting rod (34) away from the first sliding seat (36) is connected by the wire (39); one end of the second connecting rod (35) is hinged to the first connecting rod (34) in a one-to-one correspondence, and the other end is hinged to the column (31); the unfolding drive unit (38) is connected to the first sliding seat (36) and is used to drive the first sliding seat (36) to slide so that the bag breaking assembly (3) switches between the first state and the second state; In the first state, the ends of the multiple first connecting rods (34) that are away from the first sliding seat (36) converge with each other; In the second state, the ends of the multiple first connecting rods (34) away from the first sliding seat (36) are separated from each other and abut against the inner wall of the ton bag, and the threads (39) are taut and attached to the inner sidewall of the ton bag one by one.

2. The ton bag breaking and unloading device according to claim 1, characterized in that: The cross-section of the ton bag is rectangular; In the second state, the end of the first connecting rod (34) away from the first sliding seat (36) abuts against each of the vertical edges of the ton bag, and the thread (39) is attached to each of the inner sidewalls of the ton bag.

3. The ton bag breaking and unloading device according to claim 2, characterized in that: The first link (34) has a cutting part (341); in the second state, the cutting part (341) faces downward and is used to cut the bottom surface of the ton bag.

4. The ton bag breaking and unloading device according to claim 1, characterized in that: The column (31) is also slidably provided with a second sliding seat (37), the second sliding seat (37) is located above the first sliding seat (36), and the cutter head (32) is provided on the second sliding seat (37). The column (31) is also provided with two limiting blocks (312), and the two limiting blocks (312) are respectively provided on opposite sides of the second sliding seat (37) along the axial direction of the column (31); The unfolding drive unit (38) includes a telescopic component. The unfolding drive unit (38) is connected to the first sliding seat (36) and the second sliding seat (37) respectively, and is used to drive the first sliding seat (36) and the second sliding seat (37) to move closer or further away from each other. The first sliding seat (36) and the second sliding seat (37) are configured such that when the unfolding drive unit (38) extends or retracts, the second sliding seat (37) slides before the first sliding seat (36) until the second sliding seat (37) abuts against the limiting block (312). The column (31) is tubular. When the second sliding seat (37) abuts against the limiting block (312) near the first sliding seat (36), the cutter head (32) is retracted into the column (31).

5. The ton bag breaking and unloading device according to claim 4, characterized in that: The column (31) is provided with a strip hole (311); the first sliding seat (36) and the second sliding seat (37) both have a concave portion, the concave portion passes through the strip hole (311) and extends into the interior of the column (31); the unfolding drive unit (38) is provided inside the column (31), and the unfolding drive unit (38) is connected to the concave portion of the first sliding seat (36) and the concave portion of the second sliding seat (37) respectively.

6. The ton bag breaking and unloading device according to claim 1, characterized in that: The first connecting rod (34) has a roller at the end away from the first sliding seat (36).

7. The ton bag breaking and unloading device according to claim 1, characterized in that: The ton bag breaking and unloading device also includes a winding device (7), which is provided at the end of the first connecting rod (34) away from the first sliding seat (36). One end of the thread (39) is connected to the winding device (7) on one of the first connecting rods (34), and the other end is connected to the other first connecting rod (34). The winding device (7) is used to automatically wind up the thread (39).

8. The ton bag breaking and unloading device according to claim 1, characterized in that: The ton bag breaking and unloading device also includes a lifting component (6), which is connected to the column (31) and is used to drive the column (31) to lift.

9. The ton bag breaking and unloading device according to claim 1, characterized in that: The ton bag breaking and unloading device also includes a dustproof box (1) and a feeding hopper (4). The feeding hopper (4) is located below the dustproof box (1), and the bottom of the dustproof box (1) is connected to the top of the feeding hopper (4); The bag-breaking assembly (3) is located inside the dustproof box (1).

10. The ton bag breaking and unloading device according to claim 9, characterized in that: The ton bag breaking and unloading device also includes a bag-beating assembly (5), which includes a bag-beating drive unit (51) and a bag-beating component (52). The bag-beating component (52) is located inside the dustproof box (1). The bag-beating drive unit (51) is located on the dustproof box (1). The bag-beating drive unit (51) is connected to the bag-beating component (52) and is used to drive the bag-beating component (52) to beat the ton bag.

Images