limiting device
By designing the base, guide block, and limiting components of the limiting device, the problem of the box lid closing and the box body detaching after the packaging machine opens the box is solved, thus achieving efficient packaging operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-19
AI Technical Summary
Existing packaging machines suffer from problems such as the lid automatically closing after the box is opened and the box body detaching from the conveyor position, leading to equipment malfunctions and low work efficiency.
A limiting device is adopted, including a base, a guide block, and a limiting component. The guide block is connected to the base by an elastic component. The guide block supports the lid after the box is opened, and the limiting component prevents the box from jumping, thus preventing the lid from closing and the box from detaching.
It effectively prevents the lid from closing automatically, avoids the box from leaving the conveyor position, ensures the working efficiency of the packaging machine and reduces the box damage rate.
Smart Images
Figure CN224376042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machine box opening technology, and in particular to a limiting device. Background Technology
[0002] In existing packaging machines, before packaging, the boxes are conveyed to the locking station via a conveyor channel. A locking device then locks the boxes, and a suction device then opens the boxes by adsorbing the lids. However, after opening and the suction device disengages from the lid, the lid falls automatically under gravity, affecting the packaging process. Furthermore, when the locking device releases the box and continues conveying it backward, the box may bounce diagonally forward. If it moves out of position, it can cause boxes to pile up, leading to equipment malfunction and reduced efficiency.
[0003] Therefore, a limiting device is urgently needed to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a limiting device that can not only prevent the lid from closing automatically after the box is opened, but also prevent the box from detaching from the conveying position, thereby ensuring good work efficiency.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A limiting device for opening the box after the locking device has locked the box body, characterized in that it includes:
[0007] The base is set at a preset workstation;
[0008] The guide block is movably connected to the base. One side of the guide block along the length direction is connected to the base through a first elastic element. When the box lid is opened, the box lid can slide against the side of the guide block away from the base to compress the first elastic element. After the box is opened, the elastic force of the first elastic element can support the guide block at the bottom of the box lid.
[0009] A limiting member is connected to the bottom end of the base. After the locking device releases the box, the limiting member can prevent the box from jumping in the first direction.
[0010] Preferably, the limiting member includes an arc-shaped plate that bends toward one side of the base to prevent the box from jumping in the first direction.
[0011] Preferably, the limiting member further includes a main plate connected to the arc-shaped plate, and the main plate is connected to the base via an elastic component.
[0012] Preferably, the elastic component includes an interconnected mounting plate and a second elastic element, with one end of the second elastic element connected to the main body plate and the other end of the mounting plate connected to the base.
[0013] Preferably, the second elastic element is provided in multiple forms.
[0014] Preferably, the side of the guide block opposite to the first elastic member is an inclined surface.
[0015] Preferably, the guide block is pivotally connected to the base via a rotating shaft.
[0016] Preferably, the guide block is provided with an arc-shaped central hole, and the base is provided with a limiting pin. When the guide block rotates around the pivot position, the limiting pin can move within the arc-shaped central hole.
[0017] Preferably, the base is provided with an arc-shaped groove, which can be engaged with an external fixing rod to position the base.
[0018] Preferably, the base is provided with an adjustment groove communicating with the arc-shaped groove, and the base is also provided with adjustment holes communicating with both sides of the adjustment groove. The adjustment component can be threadedly engaged with the adjustment hole to adjust the opening of the arc-shaped groove.
[0019] The beneficial effects of this utility model are:
[0020] This utility model discloses a limiting device. The device specifically includes a base, a guide block, and a limiting member; the base is set at a preset work position; the guide block is movably connected to the base, and one side of the guide block along the length direction is connected to the base through a first elastic member. When the box lid is opened, the box lid can slide and connect with the side of the guide block away from the base to compress the first elastic member. After the box is opened, the elastic force of the first elastic member can support the guide block at the bottom of the box lid; the limiting member is connected to the bottom of the base. After the locking device releases the box, the limiting member can prevent the box from jumping along the first direction.
[0021] When using this device to open the box, the lid slides against the side of the guide block away from the base, pushing the guide block to compress the first elastic element. Once the lid has moved past the top of the guide block, the opening is complete, and the guide block is no longer in contact with the lid. At this point, the first elastic element pushes the guide block away from the base, allowing it to move to the bottom of the lid and support it from the bottom, preventing the lid from closing again. After opening, the locking device releases the box, causing it to jump diagonally upwards. A limiting element located on the side of the box prevents it from jumping out of its designated position. This device not only prevents the lid from closing under gravity after opening but also prevents the box from detaching from the conveyor position, thus ensuring high work efficiency. Attached Figure Description
[0022] Figure 1 This is an isometric view of the limiting device provided by this utility model;
[0023] Figure 2 This is a cross-sectional view of the base and guide block provided by this utility model;
[0024] Figure 3 This is a schematic diagram of the box-opening operation provided by this utility model.
[0025] In the picture:
[0026] 10. Base; 11. Arc-shaped groove; 12. Adjustment groove; 13. Adjustment hole; 14. Limit pin;
[0027] 20. Guide block; 21. Inclined surface; 22. Arc-shaped center hole;
[0028] 30. First elastic element;
[0029] 40. Limiting component; 41. Arc-shaped plate; 42. Main body plate;
[0030] 50. Elastic component; 51. Mounting plate; 52. Second elastic element; 53. Elastic rod;
[0031] 60. Shaft;
[0032] 70. Adjusting components;
[0033] 100. Box body; 110. Box lid;
[0034] 200. Fixed rod;
[0035] 300. Conveyor station. Detailed Implementation
[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0040] This embodiment provides a limiting device. For example... Figures 1-3 As shown, the limiting device is used for opening the box after the locking device locks the box body 100. The device specifically includes a base 10, a guide block 20, and a limiting member 40. The base 10 is set at a preset work position. The guide block 20 is movably connected to the base 10. One side of the guide block 20 along the length direction is connected to the base 10 through a first elastic member 30. When the box cover 110 of the box body 100 is opened, the box cover 110 can slide and connect with the side of the guide block 20 away from the base 10 to compress the first elastic member 30. After the box is opened, the elastic force of the first elastic member 30 can support the guide block 20 at the bottom of the box cover 110. The limiting member 40 is connected to the bottom of the base 10. After the locking device releases the box body 100, the limiting member 40 can prevent the box body 100 from jumping in the first direction.
[0041] It should be noted that, as Figure 1 As shown, before opening the box, the box 100 is conveyed by the conveyor 300. After the box 100 reaches the corresponding position, it is locked by the locking device. Then, the box cover 110 is attracted by the suction device and moved upward to complete the opening. After the opening is completed, the locking device no longer fixes the box 100. At this time, under the combined force of the conveyor 300 and the box 100, the box 100 will jump diagonally forward. If the box 100 pops out of the conveying area, it will cause the conveyor 300 to be blocked.
[0042] When opening the box using this device, the lid 110 can slide and abut against the side of the guide block 20 away from the base 10, and can push the guide block 20 to compress the first elastic member 30. When the lid 110 moves past the top of the guide block 20, the opening operation is completed, and the guide block 20 no longer abuts against the lid 110. At this time, the first elastic member 30 can push the guide block 20 to move away from the base 10, that is, the guide block 20 can move to the bottom of the lid 110 and abut against the bottom of the lid 110 to support the lid 110 and prevent the lid 110 from closing again. After the lid 110 has finished opening, the locking device releases the box body 100. At this time, the box body 100 will jump diagonally upward (in the first direction), and the limiting member 40 is located on the side of the box body 100, which can prevent the box body 100 from jumping out of the far position. This device not only prevents the lid 110 from closing under gravity after the box is opened, but also prevents the box body 100 from detaching from the conveying position, thus ensuring good working efficiency.
[0043] Specifically, such as Figure 1 As shown, the limiting member 40 includes an arc-shaped plate 41, which is bent toward the base 10 to prevent the box 100 from jumping in the first direction. By providing the arc-shaped plate 41, its arc-shaped portion can contact and prevent the box 100 from jumping, thereby preventing sharp corners from piercing the box 100, thus ensuring a reduced scrap rate of the box 100 and reducing costs.
[0044] like Figure 1 As shown, the limiting member 40 also includes a main body plate 42 connected to the arc-shaped plate 41. The main body plate 42 is connected to the base 10 via an elastic component 50. By setting the main body plate 42, the problem of difficulty in connecting the base 10 and the arc-shaped plate 41 can be solved, thereby improving the ease of installation. In addition, in this embodiment, the arc-shaped plate 41 and the main body plate 42 are integrally formed, which facilitates processing and effectively reduces manufacturing costs. Furthermore, the limiting member 40 is made of a flexible material, which can better protect the box 100, prevent the box 100 from being worn or scratched, and reduce the scrap rate.
[0045] like Figure 1 As shown, the elastic component 50 includes an interconnected mounting plate 51 and a second elastic element 52. The other end of the second elastic element 52 is connected to the main body plate 42, and the other end of the mounting plate 51 is connected to the base 10. This design is not only simple in structure and easy to install, but also, when the box 100 jumps upward and impacts the limiting member 40, the second elastic element 52, due to its own elastic force, enables the limiting member 40 to play a good buffering role, avoiding rigid connection, extending the service life of the limiting member 40, and preventing the box 100 from breaking due to excessive impact force.
[0046] To further improve the buffering effect, such as Figure 1As shown, multiple second elastic elements 52 are provided. Multiple second elastic elements 52 can not only improve the buffering effect, but also ensure the stability of the connection, thereby avoiding the situation where a single second elastic element 52 breaks due to excessive force.
[0047] It should be noted here that both the first elastic element 30 and the second elastic element 52 are springs. Springs have a simple structure, are inexpensive, which helps reduce manufacturing costs and facilitates installation. Furthermore, in this embodiment, as... Figure 1 As shown, multiple elastic rods 53 are connected between the limiting member 40 and the mounting plate 51, and multiple second elastic members 52 are arranged around the outer periphery of the multiple elastic rods 53, thereby further improving the connection stability.
[0048] To improve the smoothness of opening the box, such as Figure 2 As shown, the side of the guide block 20 opposite to the first elastic member 30 is an inclined surface 21. During the opening process, the lid 110 can slide along the inclined direction of the inclined surface 21, so the inclined surface 21 can play a good guiding role, ensuring the smoothness of opening the box and improving the operating efficiency.
[0049] In addition, such as Figure 2 As shown, the guide block 20 is pivotally connected to the base 10 via a pivot 60. That is, when the lid 110 slides against the inclined surface 21, the guide block 20 can rotate relative to the base 10, and is connected by a first elastic element 30, which ensures that the guide block 20 will not rotate downward under the action of gravity, improves the smoothness of opening the box, and avoids the situation where the box cannot be opened smoothly due to excessive resistance.
[0050] To limit the rotation angle of guide block 20, such as Figure 2 As shown, the guide block 20 is provided with an arc-shaped central hole 22, and the base 10 is provided with a limiting pin 14. When the guide block 20 rotates around the pivot position, the limiting pin 14 can move within the arc-shaped central hole 22. This arrangement can limit the angle that the guide block 20 can rotate, that is, the angle of the arc-shaped central hole 22 and the rotation range of the guide block 20, thereby effectively preventing the guide block 20 from rotating too much and failing to properly stop the lid 110 from retracting, ensuring a good user experience.
[0051] It should be noted that the base 10 is designed with a U-shaped groove, and the guide block 20 is pivotally connected to the U-shaped groove through the rotating shaft 60. The U-shaped groove can play a good role in limiting the guide block 20, preventing the guide block 20 from wobbling left and right, and also ensuring the service life of the guide block 20.
[0052] In addition, such as Figure 1As shown, the base 10 is provided with an arc-shaped groove 11, which can engage with the external fixing rod 200 to position the base 10. The arc-shaped groove 11 not only facilitates the installation of the base 10 on the fixing rod 200, but also matches the outer contour of the fixing rod 200, resulting in stable installation and easy disassembly.
[0053] In addition, such as Figure 1 As shown, the base 10 is also provided with an adjustment groove 12 communicating with the arc-shaped groove 11. The base 10 is also provided with adjustment holes 13 communicating with both sides of the adjustment groove 12. The adjustment component 70 can be threadedly engaged with the adjustment hole 13 to adjust the opening of the arc-shaped groove 11. When the diameter of the fixing rod 200 changes, the opening of the arc-shaped groove 11 can be changed through the adjustment component 70 and the adjustment hole 13, thereby further improving the ease of fixing the base 10. It is worth noting that the adjustment component 70 can be a bolt or similar structure, which is not only simple in structure but also easy to install and has a low cost.
[0054] In summary, the limiting device in this embodiment can not only prevent the lid 110 from closing automatically after the box is opened, but also prevent the box body 100 from detaching from the conveying position, thereby ensuring good working efficiency.
[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A limiting device for opening the box after the locking device has locked the box body (100), characterized in that, include: The base (10) is set at a preset workstation; The guide block (20) is movably connected to the base (10). One side of the guide block (20) along the length direction is connected to the base (10) through a first elastic element (30). When the lid (110) of the box body (100) is opened, the lid (110) can slide against the side of the guide block (20) away from the base (10) to compress the first elastic element (30). After the box is opened, the elastic force of the first elastic element (30) can support the guide block (20) at the bottom of the lid (110). The limiting member (40) is connected to the bottom end of the base (10). After the locking device releases the box (100), the limiting member (40) can prevent the box (100) from jumping in the first direction.
2. The limiting device according to claim 1, characterized in that, The limiting member (40) includes an arc-shaped plate (41) that bends toward one side of the base (10) to prevent the box (100) from jumping in a first direction.
3. The limiting device according to claim 2, characterized in that, The limiting member (40) also includes a main plate (42) connected to the arc plate (41), and the main plate (42) is connected to the base (10) through an elastic component (50).
4. The limiting device according to claim 3, characterized in that, The elastic component (50) includes an interconnected mounting plate (51) and a second elastic element (52), with one end of the second elastic element (52) connected to the main body plate (42) and the other end of the mounting plate (51) connected to the base (10).
5. The limiting device according to claim 4, characterized in that, The second elastic element (52) is provided in multiple forms.
6. The limiting device according to claim 1, characterized in that, The guide block (20) has an inclined surface (21) on the side opposite to the first elastic member (30).
7. The limiting device according to claim 1, characterized in that, The guide block (20) is pivotally connected to the base (10) via a rotating shaft (60).
8. The limiting device according to claim 1, characterized in that, The guide block (20) is provided with an arc-shaped central hole (22), and the base (10) is provided with a limiting pin (14). When the guide block (20) rotates around the pivot position, the limiting pin (14) can move within the arc-shaped central hole (22).
9. The limiting device according to claim 1, characterized in that, The base (10) is provided with an arc-shaped groove (11), which can be engaged with an external fixing rod (200) to position the base (10).
10. The limiting device according to claim 9, characterized in that, The base (10) is provided with an adjustment groove (12) that communicates with the arc groove (11). The base (10) is also provided with an adjustment hole (13) that communicates with both sides of the adjustment groove (12). The adjustment member (70) can be threadedly engaged with the adjustment hole (13) to adjust the opening of the arc groove (11).