Closing and sealing device for packaging carton
By using a conveyor belt, closure components, and a motor-driven sealing device, the problem of manually adjusting the spacing between cartons in automated carton sealing equipment has been solved, achieving automated and precise sealing of cartons, improving sealing efficiency and stability, and reducing labor costs.
Patent Information
- Application Number
- CN202520277355.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing automated sealing equipment requires manual adjustment of carton spacing during the carton conveying process, resulting in high labor costs, low operational efficiency and stability, and impacting production line efficiency.
A sealing device comprising a conveyor belt, a closing assembly, and a motor-driven mechanism was designed. By adjusting the spacing of the connecting rods through the anti-slip texture on the surface of the conveyor belt, the guide slope, and the electric push rod, the device achieves automated, precise positioning and uniform sealing of the carton. Combined with an elastic buffer layer to absorb impact force, the device prevents the carton from deforming.
It achieves automated and precise sealing of cardboard boxes, reduces manual intervention, improves sealing efficiency and stability, and lowers labor costs.
Smart Images
Figure CN223658479U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of carton closure technology, specifically a closure and sealing device for packaging cartons. Background Technology
[0002] As a type of packaging container based on paper products, cardboard boxes are widely used in product packaging, logistics transportation, and material storage due to their low cost, convenient sealing, high filling adaptability, and clean and environmentally friendly characteristics.
[0003] In automated carton packaging production lines, the final sealing process is crucial for ensuring packaging integrity. However, most current automated sealing equipment suffers from significant shortcomings: the carton conveying process relies on manual, real-time adjustment of the carton spacing to meet the sealing device's precise positioning requirements. This manual intervention not only increases labor costs but also limits the overall efficiency of the production line due to its limited operational efficiency and stability. Therefore, we propose a sealing device for packaging cartons. Utility Model Content
[0004] To address the problems raised in the background art, this utility model provides the following technical solution: a closing and sealing device for packaging cartons, comprising a base, the base having a cavity, a conveyor belt disposed within the cavity, closing components disposed on both sides of the base, the closing components being disposed on both sides of the conveyor belt, support columns disposed on both sides of the base, a top plate disposed between two support columns, a lead screw disposed within each of the two support columns, a connecting block disposed on the lead screw, the connecting block being connected to a pressure plate, motors disposed at both ends of the top plate, the output end of the motors penetrating the top plate and connected to the lead screw, and a pressure roller disposed at the bottom of the pressure plate.
[0005] Preferably, the closing assembly includes two connecting rods, which are symmetrically arranged on the base and connected to the closing baffle. This effectively enables the closing operation of the carton, ensuring that the carton is in a suitable closed state before sealing, thus providing a guarantee for the subsequent sealing process.
[0006] Preferably, the two connecting rods are electric push rods, which have a locking function, allowing the length of the connecting rods to be adjusted according to different sizes of cartons, and fixed by locking components.
[0007] Preferably, the bottom of the pressure plate is provided with an elastic buffer layer, which is located between the pressure roller and the pressure plate. The elastic buffer layer can absorb the impact force during the pressing process and prevent the carton from deforming due to excessive instantaneous pressure.
[0008] Preferably, the inner side of the closing baffle is provided with a guide slope, the angle between the guide slope and the horizontal plane is 30°-45°, the guide slope can guide the carton cover to close naturally, reducing the phenomenon of the cover jamming or uneven folding.
[0009] Preferably, the conveyor belt surface is provided with anti-slip texture to increase the friction between the carton and the conveyor belt and prevent the carton from slipping or shifting during transportation.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] During operation, cartons enter the conveyor belt from the previous process. The anti-slip texture on the conveyor belt surface increases friction, ensuring smooth transport of the cartons. The cartons move along the conveyor belt to the closed baffle area. The guide ramp on the inner side of the closed baffle guides the carton cover to fold inward. The spacing of the closed baffle is adjusted by the connecting rod to accommodate cartons of different widths. The motor starts, driving the lead screw to rotate, which in turn lowers the connecting block and pressure plate. The pressure roller at the bottom of the pressure plate contacts the carton cover, applying uniform pressure to complete the sealing. The elastic buffer layer absorbs the impact of the pressure, preventing the carton from deforming. After sealing, the motor reverses, driving the lead screw to rise, which in turn resets the pressure plate. The carton is then transported by the conveyor belt to the next process, and the device enters the next working cycle. This achieves the limitation of different cartons, and the operation is convenient and quick. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a front view of the overall structure of this utility model;
[0014] In the diagram: 1. Base; 2. Conveyor belt; 3. Connecting rod; 4. Closing baffle; 5. Support column; 6. Top plate; 7. Lead screw; 8. Connecting block; 9. Pressure plate; 10. Motor; 11. Pressure roller. Detailed Implementation
[0015] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0016] Depend on Figure 1The present invention includes a base 1 with a cavity, a conveyor belt 2 disposed within the cavity, a closing assembly on both sides of the base 1, a support column 5 on both sides of the base 1, a top plate 6 between the two support columns 5, a lead screw 7 disposed within each of the two support columns 5, a connecting block 8 disposed on the lead screw 7, the connecting block 8 being connected to a pressure plate 9, a motor 10 disposed at both ends of the top plate 6, the output end of the motor 10 passing through the top plate 6 and connected to the lead screw 7, and a pressure roller 11 disposed at the bottom of the pressure plate 9.
[0017] The closing assembly includes two connecting rods 3, which are symmetrically arranged on the base 1. The two connecting rods 3 are connected to the closing baffle 4, which can effectively realize the closing operation of the carton, so that the carton is in a suitable closed state before sealing, thus providing a guarantee for the subsequent sealing process.
[0018] The two connecting rods 3 are electric push rods with a locking function. The length of the connecting rods 3 can be adjusted according to different sizes of cartons and fixed by locking components.
[0019] An elastic buffer layer is provided at the bottom of the pressure plate 9. The elastic buffer layer is located between the pressure roller 11 and the pressure plate 9. It can absorb the impact force during the pressing process and prevent the carton from deforming due to excessive instantaneous pressure.
[0020] The inner side of the closing baffle 4 is provided with a guide slope. The angle between the guide slope and the horizontal plane is 30°-45°. The guide slope can guide the carton cover to close naturally, reducing the phenomenon of the cover jamming or uneven folding.
[0021] The surface of conveyor belt 2 is provided with anti-slip texture to increase the friction between the carton and the conveyor belt and prevent the carton from slipping or shifting during transportation.
[0022] Working principle: During operation, the carton enters the conveyor belt 2 from the previous process. The anti-slip texture 13 on the surface of the conveyor belt 2 increases friction, ensuring smooth transport of the carton. The carton moves along the conveyor belt 2 to the area of the closing baffle 4. The guide slope 14 on the inner side of the closing baffle 4 guides the carton cover to fold inward. The spacing of the closing baffle 4 is adjusted by the connecting rod 3 to accommodate cartons of different widths. The motor 10 starts, driving the lead screw 7 to rotate, which in turn drives the connecting block 8 and the pressure plate 9 to descend. The pressure roller 11 at the bottom of the pressure plate 9 contacts the carton cover, applying uniform pressure to complete the sealing. The elastic buffer layer 12 absorbs the impact of the pressure and prevents the carton from deforming. After sealing, the motor 10 reverses, driving the lead screw 7 to rise, which in turn drives the pressure plate 9 to reset. The carton is then transported by the conveyor belt 2 to the next process, and the device enters the next working cycle. This achieves the limitation of different cartons and is convenient and quick to operate.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A closing device for packaging cartons, comprising a base (1), characterised in that: The base (1) has a cavity, the cavity is provided with a conveyor belt (2), both sides of the base (1) are provided with a closing assembly, the closing assembly is arranged on both sides of the conveyor belt (2), both sides of the base (1) are provided with support columns (5), the top plate (6) is arranged between the two support columns (5), the lead screw (7) is arranged in the two support columns (5), the connecting block (8) is arranged on the lead screw (7), the connecting block (8) is connected with the pressing plate (9), the motor (10) is arranged at both ends of the top plate (6), the output end of the motor (10) penetrates the top plate (6) and is connected with the lead screw (7), the pressing plate (9) is provided with a pressing and rolling cylinder (11) at the bottom.
2. A closure device for a carton according to claim 1, wherein: The closing assembly comprises two connecting rods (3), the two connecting rods (3) are symmetrically arranged on the base (1), and the two connecting rods (3) are connected with the closing baffle (4).
3. A closure device for a carton according to claim 2, wherein: The two connecting rods (3) are electric push rods, and the electric push rods have a locking function.
4. A closure device for a carton according to claim 3, wherein: The bottom of the pressing plate (9) is provided with an elastic buffer layer, and the elastic buffer layer is located between the pressing and rolling cylinder (11) and the pressing plate (9).
5. A closure device for a carton according to claim 4, wherein: The inner side of the closing baffle (4) is provided with a guide slope, and the included angle between the guide slope and the horizontal plane is 30°-45°.
6. A closure device for a carton according to claim 5, wherein: The surface of the conveyor belt (2) is provided with anti-skid lines.