Packing belt box for placing packing belt

Abstract

The utility model belongs to the technical field of packaging material storage, in particular to a packing belt box for placing packing belts, which comprises a bottom plate, an unwinding chamber and a storage chamber, a packing belt shaft is arranged in the unwinding chamber, and the improvement is that a cutting component and a linkage lifting component are additionally arranged in the unwinding chamber; the linkage lifting assembly comprises a belt pressing plate located on a belt outlet path and a transmission mechanism connected with the belt pressing plate and the blade, when the packing belt is extracted, the packing belt presses the belt pressing plate downwards, and the transmission mechanism drives the blade to move upwards to complete cutting; and after cutting, the belt pressing plate automatically moves upwards and resets under the action of the resetting piece, and the end part of the packing belt is lifted away from the knife edge. The packing belt box solves the problems of inconvenience in taking and potential safety hazards caused by the fact that the belt end is retained near a knife edge after the packing belt box is cut off, and has the advantages of safety in use and convenience in operation.

Description

Technical Field

[0001] This utility model relates to the field of packaging material storage technology, and in particular to a packing strap box for holding packing straps. Background Technology

[0002] Packaging strapping (binding straps) is made primarily of polyethylene, polypropylene resin, and cold-rolled steel strip, though some are made from nylon and polyester. It is produced through extrusion and unidirectional stretching, followed by heat treatment and bluing. Besides being used for sealing corrugated boxes, bundling hot-rolled steel coils, and cold-rolled steel coils, it can also be used to bundle glass, pipes, raw materials, and fruits. Packing strapping, especially adhesive plastic strapping, requires proper storage to prevent exposure to humidity, which can reduce its adhesiveness and affect its performance in subsequent use.

[0003] To address the issue of existing packing straps being susceptible to moisture damage during daily storage, leading to a decrease in their adhesiveness, Chinese Patent CN212712039U discloses a packing strap box. This box features an unwinding layer and a storage layer, along with an observation window and a door, thus improving the storage conditions for the packing straps to some extent. Furthermore, the patent also relates to a solution for cutting the packing straps using a cutting mechanism (such as a toothed blade) when retrieving them.

[0004] However, through practice and analysis, it has been found that the above-mentioned existing technical solutions still have a significant drawback: when the strapping is cut by the toothed blade, the cut end of the strapping usually springs back and stays very close to the sharp edge of the blade due to the release of its own flexibility and tension (e.g., Figure 1 As shown in the image, this situation presents two problems: First, when the user needs to retrieve the strapping again, it is difficult to find and grasp the end of the strap that is close to the blade, making operation inconvenient; second, and more importantly, when the user is groping or trying to grasp the end of the strap, their fingers are very likely to accidentally touch the exposed sharp blade, posing a safety hazard of cuts. Therefore, it is urgent to improve the existing strapping box to solve the inconvenience and safety problems caused by the strapping end remaining near the blade after cutting. Utility Model Content

[0005] Based on the technical problems existing in the prior art, this utility model proposes a packing strap box for holding packing straps.

[0006] The present invention proposes a packing box for holding packing straps, comprising a base plate, an unwinding chamber fixed above the base plate, and a storage chamber. The unwinding chamber is provided with a packing strap shaft for holding the packing strap rolls. The key improvement of the present invention is that a cutting component and a lifting component linked with the cutting component are added to the unwinding chamber.

[0007] The cutting assembly includes a blade that is movable up and down within the unwinding chamber for performing the cutting action.

[0008] The linkage lifting assembly includes a pressure plate that can be moved up and down in the unwinding chamber and located on the packing tape exit path, and a transmission mechanism connected between the pressure plate and the blade. The pressure plate protrudes from the packing tape path in its natural state.

[0009] Preferably, the transmission mechanism is a rack and pinion mechanism. Specifically, it includes at least one first rack fixedly connected to the bottom of the pressure plate, a gear rotatably mounted in the unwinding chamber via a gear shaft, and a second rack fixedly connected to the bottom of the blade. The first rack meshes with one side of the gear, and the second rack meshes with the other side of the gear.

[0010] Preferably, both the first and second racks are vertically arranged and slidably pass through the guide frame and the unwinding chamber, respectively. The reset component is specifically a reset spring sleeved on the outside of the guide post. The guide post is fixed on the guide frame, and the lower end of the reset spring abuts against the flange on the guide post, while the upper end abuts against the boss of the first rack.

[0011] Preferably, in order to facilitate the replacement of the packing tape roll, the top of the unwinding chamber is provided with an inlet, through which the packing tape shaft can be inserted or removed, and both ends of the packing tape shaft are provided with independently rotatable positioning discs.

[0012] Preferably, the top of the unwinding chamber is sealed by a removable cover to prevent dust from entering. L-shaped latches are provided at the bottom of both sides of the cover, while vertical slots are correspondingly provided on the inner walls of both sides of the unwinding chamber.

[0013] Preferably, the storage room is located next to the unwinding room, and its top is hinged with a storage cover by a box buckle. The internal space of the storage room can be used to store spare packing tape rolls, gloves, scissors and other auxiliary tools or items, which increases the storage function and ease of use of the equipment.

[0014] Preferably, the pressure plate is located downstream of the strapping tape shaft in the direction of tape exit. In the initial state (i.e., before the strapping tape is removed), the upper surface of the pressure plate should be higher than the height of the blade edge. And in the initial state, the blade edge should be located below the strapping tape path.

[0015] Compared with the prior art, the present invention provides a packing strap box for holding packing straps, which has the following advantages:

[0016] 1. This utility model cleverly uses the pulling action of the packing strap (pressing down the packing strap) as the trigger signal for the cutting action by setting up a linkage lifting and cutting mechanism consisting of a pressure plate, a transmission mechanism and a blade. After the packing strap is cut, the pressure plate automatically resets and lifts the end of the strap away from the blade. This fundamentally solves the problem of inconvenience and safety hazards caused by the end of the packing strap remaining near the blade after cutting in the prior art, and significantly improves the safety and convenience of use.

[0017] 2. The strapping shaft of this utility model is equipped with an adjustable positioning plate, which can adapt to strapping rolls of different widths and specifications. The axial fastening of the strapping roll can be achieved through a simple rotation operation, effectively preventing lateral displacement or loosening during unwinding and ensuring smooth tape output.

[0018] 3. The top of the unwinding chamber of this utility model adopts a detachable cover plate design with L-shaped buckles and slots. The structure is simple and the installation and disassembly are quick. It not only facilitates the replacement of the packing tape roll, but also effectively prevents dust. Attached Figure Description

[0019] Figure 1 This is a simplified diagram illustrating the cutting of the packing tape using existing technology.

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the unwinding chamber of this utility model;

[0022] Figure 4 This is a schematic diagram of the movement of the packing strap during cutting.

[0023] Figure 5 This is a schematic diagram of the packing strap of this utility model after it has been cut.

[0024] Figure 6 This is a schematic diagram of the packing strap shaft structure of this utility model;

[0025] Figure 7 This is a schematic diagram showing the installation between the unwinding chamber, the packing belt shaft, and the cover plate of this utility model.

[0026] In the diagram: 1. Base plate; 2. Unwinding chamber; 3. Packing strap shaft; 4. Pressure plate; 5. Blade; 6. First rack; 7. Gear shaft; 8. Gear; 9. Second rack; 10. Guide frame; 11. Guide post; 12. Return spring; 13. Insertion port; 14. Positioning plate; 15. Cover plate; 16. L-shaped buckle; 17. Slot; 18. Storage chamber; 19. Storage cover; 20. Box buckle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0029] Reference Figures 2 to 7 The present invention provides a packing box for holding packing tape, which is mainly composed of a base plate 1, an unwinding chamber 2 and a storage chamber 18. The base plate 1 serves as the basic support for the entire box. The unwinding chamber 2 and the storage chamber 18 are fixedly installed side by side on the top of the base plate 1. The unwinding chamber 2 is used to hold and unwind the packing tape rolls that are in use, while the storage chamber 18 is used to store spare packing tape rolls or other miscellaneous items.

[0030] The top of the unwinding chamber 2 is provided with a set of inlets 13, through which the packing strap shaft 3 can be inserted or removed, such as... Figure 6 As shown, each end of the packing tape shaft 3 is threaded with a positioning disc 14. In use, the rolled packing tape is placed on the middle of the packing tape shaft 3, and then the positioning discs 14 at both ends are rotated respectively. The inner end face of the positioning disc 14 is provided with anti-slip texture or rubber pad. When the positioning disc 14 is rotated to move towards the center and press tightly against the end face of the packing tape roll, it can prevent the packing tape roll from moving left and right in the axial direction, thus playing the role of positioning and fastening.

[0031] To seal the inlet 13 and prevent dust, the top of the unwinding chamber 2 is equipped with a removable cover 15, such as... Figure 7 As shown, the lower part of both sides of the cover plate 15 is provided with L-shaped buckles 16 extending inward. Correspondingly, the upper part of the inner wall on both sides of the unwinding chamber 2 is provided with vertical slots 17. When installing the cover plate 15, first align the L-shaped buckles 16 on both sides of the cover plate 15 vertically with the inlet 13 and put it down, so that the vertical part of the L-shaped buckle 16 passes through the gap on both sides of the inlet 13 and enters the unwinding chamber 2. Then, push the cover plate 15 horizontally (to the right in the figure, i.e. towards the storage chamber 18). At this time, the horizontal section of the L-shaped buckle 16 will slide into the slot 17 on the inner wall, thereby firmly locking the cover plate 15 on the top of the unwinding chamber 2. When disassembling, simply reverse the operation. The top of the storage chamber 18 is connected to the storage cover 19 by a common box buckle 20, which can be easily opened and closed to store and retrieve the internal items.

[0032] The core improvement of this utility model lies in the cutting and linkage lifting mechanism installed inside the unwinding chamber 2, such as... Figure 3 , Figure 4 As shown, inside the unwinding chamber 2, on the strapping tape exit path (downstream of the strapping tape shaft 3 exit), there is a pressure plate 4 that can move up and down. In its natural state, the upper surface of the pressure plate 4 is slightly higher than the normal exit plane of the strapping tape, and the bottom of the pressure plate 4 is fixedly connected to a vertically set first toothed rack 6.

[0033] A guide frame 10 is also fixedly installed inside the unwinding chamber 2. The first rack 6 can slide up and down through a guide hole on the guide frame 10. At least one vertical guide post 11 is also fixed on the guide frame 10. A return spring 12 is fitted on the guide post 11. The lower end of the return spring 12 abuts against the flange on the guide post 11, and the upper end abuts against the boss of the first rack 6. Therefore, the return spring 12 always applies an upward thrust to the first rack 6 and the pressure plate 4, keeping them in the upper limit position.

[0034] The main component of the cutting assembly is a blade 5, which is fixedly connected to a second rack 9 at its bottom. The bottom of the second rack 9 is through an unwinding chamber 2, and the cutting edge of the blade 5 faces upward.

[0035] The transmission mechanism includes a gear 8 rotatably mounted on the side wall of the unwinding chamber 2 via a gear shaft 7. The gear 8 is located between a first rack 6 and a second rack 9. The first rack 6 meshes with one side of the gear 8, and the second rack 9 meshes with the other side of the gear 8. In this scheme, in the initial state, the blade 5 is located at the lower limit of its stroke, and the cutting edge is below the path of the packing tape.

[0036] Working principle:

[0037] When a user needs to retrieve the packing strap, they pinch the end of the packing strap extending from the front of the unwinding chamber 2 and pull it outwards. Figure 4 As shown, when preparing to cut the strapping, the strapping is pressed down. During the movement, the strapping will come into contact with the pressure plate 4 at the high position and press it down. The pressure plate 4 drives the first rack 6 to overcome the elastic force of the return spring 12 and slide down along the guide frame 10.

[0038] The downward movement of the first rack 6 drives the gear 8 meshing with it to rotate clockwise (as shown in the illustration). The rotation of the gear 8 then drives the second rack 9 meshing with it on the other side to slide upward. The second rack 9 drives the blade 5 to move upward quickly. Since the initial position of the blade 5 is below the packing strap, its upward movement causes its sharp blade to contact the lower surface of the packing strap being pulled out and quickly cut it off.

[0039] The instant the strapping is cut, the downward pressure acting on the pressure plate 4 (from the taut strapping) suddenly disappears. At this moment, the compressed return spring 12 begins to release its stored elastic potential energy, pushing the first rack 6 and the connected pressure plate 4 upwards to quickly return to their original position. Figure 5 As shown, during the upward reset process, the upper surface of the pressure plate 4 supports the cut and relaxed end of the packing strap and lifts it upward together. Finally, the pressure plate 4 returns to its initial high position, and the cut end of the packing strap is also raised to a significant position, which is far away from the cutting edge of the blade 5 below, which has fallen back to its initial position.

[0040] In this way, the next time the packing strap needs to be used, the user can easily see and pinch the raised end of the packing strap, and continue to pull it outward to repeat the above cutting-lifting cycle. The whole process is completed automatically, without the need to manually handle the end of the strap after cutting, and completely avoids the risk of fingers coming into contact with the sharp blade.

[0041] The packing box structure of this utility model has a reliable linkage design, which greatly improves the safety and ease of use, and is especially suitable for occasions such as construction sites, warehouses, and logistics where packing straps are frequently used.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A packing strap box for holding packing straps, comprising a base plate (1), an unwinding chamber (2) fixed to the base plate (1), and a storage chamber (18), wherein a packing strap shaft (3) is provided in the unwinding chamber (2), characterized in that, The unwinding chamber (2) is also equipped with a cutting assembly and a linkage lifting assembly; The cutting assembly includes a blade (5) that is movable up and down within the unwinding chamber (2); The linkage lifting assembly includes a pressure plate (4) that is movable up and down in the unwinding chamber (2) and located on the packing tape exit path, and a transmission mechanism disposed between the pressure plate (4) and the blade (5); When the packing strap is pulled out and the pressure plate (4) is pressed down, the transmission mechanism drives the blade (5) to move upward to cut the packing strap; after the packing strap is cut, the pressure plate (4) is reset upward under the action of the reset member, and the cut end of the packing strap is lifted away from the cutting edge of the blade (5).

2. A packing strap box for holding packing straps according to claim 1, characterized in that, The transmission mechanism includes at least one set of first racks (6) fixedly connected to the bottom of the pressure plate (4), a gear (8) rotatably mounted in the unwinding chamber (2) via a gear shaft (7), and a second rack (9) fixedly connected to the bottom of the blade (5); The first rack (6) meshes with one side of the gear (8), and the second rack (9) meshes with the other side of the gear (8), and the first rack (6) and the second rack (9) move in opposite directions.

3. A packing strap box for holding packing straps according to claim 2, characterized in that, The unwinding chamber (2) is fixed with a guide frame (10). The first rack (6) and the second rack (9) are both vertically arranged. The first rack (6) and the second rack (9) are slidably inserted into the guide frame (10) and the unwinding chamber (2), respectively. The reset component is a reset spring (12) sleeved on the guide post (11). The guide post (11) is fixed on the guide frame (10), and the upper end of the reset spring (12) abuts against the first rack (6), and the lower end abuts against the flange on the guide post (11).

4. A packing strap box for holding packing straps according to claim 1, characterized in that, The top of the unwinding chamber (2) is provided with a pair of inlets (13) for inserting the packing tape shaft (3), and the two ends of the packing tape shaft (3) are provided with rotatable positioning plates (14).

5. A packing strap box for holding packing straps according to claim 4, characterized in that, The top of the unwinding chamber (2) is detachably provided with a cover plate (15), which covers the inlet (13); L-shaped buckles (16) are provided on both sides of the cover plate (15), and corresponding slots (17) that cooperate with the L-shaped buckles (16) are provided on the inner walls of both sides of the unwinding chamber (2).

6. A packing strap box for holding packing straps according to claim 1, characterized in that, The top of the storage compartment (18) is connected to a storage cover (19) that can be opened and closed via a buckle (20).

7. A packing strap box for holding packing straps according to any one of claims 1 to 6, characterized in that, The pressure plate (4) is located downstream of the packing tape shaft (3) in the tape exit direction, and its initial position is higher than the height of the cutting edge of the blade (5); the initial position of the blade (5) is located below the packing tape path.

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