Extendable bag-breaking box

Abstract

This utility model relates to the field of transfer equipment technology, specifically to a bag-breaking box with telescopic function. It includes a box body for holding ton bags, a hopper at the bottom of the box body, and a drive device on the outside of the box body for adjusting the height of the hopper. Adjusting the height of the hopper changes the overall size of the bag-breaking box, making it suitable for breaking and distributing ton bags of different heights. A telescopic joint is installed between the box body and the hopper, allowing for synchronous extension and retraction when the hopper's height is adjusted, ensuring the sealing of the entire bag-breaking box and preventing radial misalignment between the hopper and the box body, which would affect the distributing operation. A bag-breaking knife assembly is installed at the top of the hopper for opening the bottom of the ton bag and allowing the material to fall.

Description

Technical Field

[0001] This utility model relates to the field of transfer equipment technology, specifically to a bag-breaking box with telescopic function. Background Technology

[0002] In industrial production and material handling, ton bags, as a form of large-capacity bulk material packaging, are widely used for material storage and transportation in industries such as chemicals, building materials, grain, and mining. To achieve efficient unloading of materials from ton bags, it is usually necessary to use bag-breaking equipment to open the bags so that the materials can fall smoothly into subsequent conveying or processing equipment.

[0003] Currently, there are many types of bag-breaking equipment on the market, among which bag-breaking boxes are a common type. Traditional bag-breaking boxes usually adopt a fixed structure design with a fixed height, which can only accommodate ton bags of specific specifications or within a narrow size range. However, in actual production operations, due to differences in material types and transportation needs, the size of ton bags (especially in the height direction) often varies significantly. When dealing with ton bags that are too tall, a fixed-height bag-breaking box may not be tall enough, causing the bottom of the ton bag to not fully enter the box after hoisting, making it easy for material to spill outside the box during the bag-breaking operation, resulting in material waste and environmental pollution. On the other hand, when handling ton bags that are too short, the distance between the bottom of the ton bag and the receiving device inside the bag-breaking box is too large, which can easily generate dust during the material's fall, affecting the working environment and potentially harming the health of operators. It may also cause the material to break or lose its properties due to the excessive drop.

[0004] Furthermore, while existing bag-breaking boxes can open ton bags, their non-adjustable height makes it difficult to precisely control the relative position of the breaking blades to the ton bags when breaking different sized bags. This can lead to incomplete breaking and opening position deviations, affecting unloading efficiency. Additionally, traditional bag-breaking boxes are unsuitable for scenarios requiring frequent changes of different sized ton bags, often necessitating the replacement of equipment with different specifications or complex manual adjustments. This not only increases equipment investment costs but also reduces the continuity and efficiency of production operations. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a telescopic bag-breaking box that can open suspended ton bags to facilitate material release. Furthermore, the height of the bag-breaking box can be adjusted according to the size of the ton bags, making it suitable for bag-breaking and material release operations of different sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bag-breaking box with telescopic function, comprising a box body, a feeding hopper provided below the box body, a driving device for adjusting the height of the feeding hopper provided outside the box body, a telescopic joint provided between the box body and the feeding hopper, and a bag-breaking knife assembly provided above the feeding hopper.

[0007] As a further improvement to the above technical solution:

[0008] The expansion joint includes an expansion tube, and both ends of the expansion tube are provided with sealing frames that are respectively connected to the box body and the hopper. An anti-skewing component is provided between the two sealing frames.

[0009] The anti-skew assembly includes a guide rod located outside the telescopic tube, and mounting seats are provided on both sealing frames, with spherical bearings installed inside the mounting seats.

[0010] The guide rods are multiple and evenly distributed along the circumference of the housing.

[0011] The drive device includes a winding motor located on the outer wall of the housing, a traction rope being provided on the winding motor, and a limiting plate connected to the traction rope being provided at the upper end of the guide rod.

[0012] The lower part of the mounting base is provided with a storage chamber, and the guide rod is provided with a limiting block that works in conjunction with the storage chamber.

[0013] The bag-breaking knife assembly includes a conical cutter head, and the lower part of the conical cutter head is provided with supporting ribs that are connected to the side wall of the hopper.

[0014] The number of supporting ribs is multiple and they are evenly distributed along the circumference of the hopper. Each supporting rib is provided with a cutting blade on its upper part.

[0015] The beneficial effects of this utility model embodiment are as follows: The telescopic bag-breaking box includes a box body for placing ton bags, a feeding hopper is provided at the bottom of the box body, and a driving device for adjusting the height of the feeding hopper is provided on the outside of the box body. By adjusting the height of the feeding hopper, the size of the entire bag-breaking box can be changed, which is suitable for bag-breaking and material-laying operations of ton bags of different heights. A telescopic joint is installed between the box body and the feeding hopper. The telescopic joint can extend and retract synchronously when the height of the feeding hopper is adjusted, ensuring the sealing of the entire bag-breaking box. At the same time, it can also prevent radial misalignment between the feeding hopper and the box body, which would affect the material-laying operation. A bag-breaking knife assembly is installed at the top of the feeding hopper for opening the bottom of the ton bag and allowing the material to fall. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bag-breaking knife assembly in this utility model (expansion joint omitted);

[0018] Figure 3 This is a schematic diagram of the expansion joint in this utility model;

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Box body; 2. Hopper; 3. Expansion joint; 4. Telescopic pipe; 5. Sealing frame; 6. Guide rod; 7. Mounting base; 8. Spherical bearing; 9. Rewinding motor; 10. Traction rope; 11. Limiting plate; 12. Storage chamber; 13. Limiting block; 14. Conical cutter head; 15. Supporting rib; 16. Cutting blade. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, the telescopic bag-breaking box of this embodiment includes a box body 1 for placing ton bags, a feeding hopper 2 at the bottom of the box body 1, and a driving device for adjusting the height of the feeding hopper 2 on the outside of the box body 1. By adjusting the height of the feeding hopper 2, the overall size of the bag-breaking box can be changed, making it suitable for bag-breaking and material-laying operations for ton bags of different heights. A telescopic joint 3 is installed between the box body 1 and the feeding hopper 2. The telescopic joint 3 can extend and retract synchronously when the height of the feeding hopper 2 is adjusted, ensuring the sealing of the entire bag-breaking box and preventing radial misalignment between the feeding hopper 2 and the box body 1, which would affect the material-laying operation. A bag-breaking knife assembly is installed on the upper part of the feeding hopper 2 for opening the bottom of the ton bag and allowing the material to fall.

[0023] The telescopic joint 3 includes a telescopic tube 4. Both ends of the telescopic tube 4 are provided with sealing frames 5 that are respectively connected to the box body 1 and the hopper 2. The telescopic tube 4 is installed and fixed by the two sealing frames 5. An anti-skew component is provided between the two sealing frames 5. The anti-skew component includes a guide rod 6 located on the outside of the telescopic tube 4. Each of the two sealing frames 5 is provided with a mounting seat 7. A joint bearing 8 is provided in the mounting seat 7. There are multiple guide rods 6, which are evenly distributed along the circumference of the box body 1. The guide rods 6 are used to limit the position of the hopper 2, ensuring that the hopper 2 is always coaxially distributed with the box body 1, and preventing the hopper 2 from being squeezed by the ton bag after it is skewed, which would affect the falling of the material.

[0024] The driving device includes a winding motor 9 located on the outer wall of the box 1. The winding motor 9 is equipped with a traction rope 10. The upper end of the guide rod 6 is equipped with a limiting plate 11 connected to the traction rope 10. The winding motor 9 is used to wind and unwind the traction rope 10, thereby driving the guide rod 6 to rise and fall. The hopper 2 is fixedly connected to the lower end of the guide rod 6, and moves longitudinally with the guide rod 6 to achieve the distance between the hopper 2 and the box 1. The height of the bag breaking box is adjusted according to the change of the height of the ton bag.

[0025] The lower part of the mounting base 7 is provided with a storage chamber 12, and the guide rod 6 is provided with a limiting block 13 that works in conjunction with the storage chamber 12. Both the storage chamber 12 and the limiting block 13 are frustoconical and their diameters gradually decrease from top to bottom. The limiting block 13 is located in the lower middle part of the guide rod 6. When the limiting block 13 moves into the storage chamber 12, the hopper 2 reaches its maximum rising height.

[0026] The bag-breaking knife assembly includes a conical cutter head 14. The lower part of the conical cutter head 14 is provided with a support rib 15 connected to the side wall of the hopper 2. There are multiple support ribs 15, which are evenly distributed along the circumference of the hopper 2. Each support rib 15 is provided with a cutting blade 16 at its upper part. The support rib 15 is arc-shaped and its height gradually decreases from the end connected to the conical cutter head 14 outward. The axis of the conical cutter head 14 coincides with the axis of the hopper 2, opening the middle of the ton bag. Then, in conjunction with the cutting blades 16 around the perimeter, the area of ​​the discharge opening on the lower surface of the ton bag is increased, accelerating the falling of the material.

[0027] The working principle / assembly process of this solution is as follows: A hook for lifting ton bags is installed inside the housing 1. After the ton bag is connected to the hook, the ton bag is located inside the housing 1. At this time, the height of the feeding hopper 2 is adjusted using the winding motor 9 to ensure that there is a certain gap between the bag-breaking knife group and the lower surface of the ton bag. The bag-breaking box is moved to the top of the feeding pipe of the receiving bin, and the bag-breaking box begins to fall. After the discharge end of the feeding hopper 2 is connected to the feeding pipe, it remains stationary. At this time, the bag-breaking box continues to descend. During the fall, the lower surface of the ton bag contacts the bag-breaking knife group. After the feeding port is cut open on the lower surface of the ton bag, the material falls into the receiving bin through the feeding hopper 2.

[0028] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A bag breaking box with telescopic function, characterized in that: Includes a box body (1), a feeding hopper (2) is provided below the box body (1), a driving device for adjusting the height of the feeding hopper (2) is provided outside the box body (1), a telescopic joint (3) is provided between the box body (1) and the feeding hopper (2), and a bag-breaking knife assembly is provided on the upper part of the feeding hopper (2).

2. The bag breaking box with telescopic function according to claim 1, characterized in that: The telescopic joint (3) includes a telescopic tube (4), and the two ends of the telescopic tube (4) are provided with sealing frames (5) that are respectively connected to the box body (1) and the hopper (2). An anti-skewing component is provided between the two sealing frames (5).

3. The bag breaking box with telescopic function according to claim 2, characterized in that: The anti-skew assembly includes a guide rod (6) located outside the telescopic tube (4), and mounting seats (7) are provided on both sealing frames (5), with a spherical bearing (8) provided inside the mounting seat (7).

4. The bag breaking box with telescopic function according to claim 3, characterized in that: The guide rods (6) are numerous and evenly distributed along the circumference of the box (1).

5. The bag breaking box with telescopic function according to claim 3, characterized in that: The drive device includes a winding motor (9) located on the outer wall of the housing (1), a traction rope (10) is provided on the winding motor (9), and a limiting plate (11) connected to the traction rope (10) is provided at the upper end of the guide rod (6).

6. The bag breaking box with telescopic function according to claim 5, characterized in that: The lower part of the mounting base (7) is provided with a storage chamber (12), and the guide rod (6) is provided with a limiting block (13) that cooperates with the storage chamber (12).

7. The bag breaking box with telescopic function according to claim 1, characterized in that: The bag-breaking knife assembly includes a conical cutter head (14), and the lower part of the conical cutter head (14) is provided with a supporting rib (15) connected to the side wall of the hopper (2).

8. The bag breaking box with telescopic function according to claim 7, characterized in that: The number of the supporting ribs (15) is multiple and they are evenly distributed along the circumference of the hopper (2). Each supporting rib (15) is provided with a cutting blade (16) on its upper part.

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