Cigarette box circulating line conveying equipment

Abstract

The invention discloses cigarette box circulation line conveying equipment, and belongs to the field of cigarette box circulation arrangement equipment, the cigarette box circulation line conveying equipment comprises a conveying belt, an elastic piece is arranged on the conveying belt, a pressing cover structure is arranged on the conveying belt, and the pressing cover structure comprises a pressing structure and an elastic cover structure; the downward pressing structure comprises at least one downward pressing oil cylinder, and an output shaft of the downward pressing oil cylinder is connected with a connecting rod; the elastic cover structure comprises a rigid cover body, and an elastic cover body is arranged in the rigid cover body; a lifting structure is arranged below the lower pressing cover structure and comprises a power part and a plugging part; the power part comprises a motor and a screw rod, and the plugging part is mounted on the screw rod; a floating plate is arranged above the lifting frame, and through the downward pressing cover structure, the floating plate and the suction device, when the deformation box body is pressed, air, including gas extruded out of a paperboard, in the closed cavity can be actively and continuously pumped and exhausted.

Description

Technical Field

[0001] This invention belongs to the field of cigarette box recycling and sorting equipment, and specifically relates to a cigarette box recycling line conveying equipment. Background Technology

[0002] In the tobacco packaging industry, finished cigarettes are typically packed in specialized cigarette boxes for easy transportation and storage. To conserve resources and reduce costs, these boxes are often designed to be reusable. In actual recycling, the recycled boxes undergo processes such as disassembly, sorting, and repackaging. However, due to repeated use, transportation compression, or unpacking operations, some cigarette boxes are prone to deformation, especially the main load-bearing structure, which is susceptible to outward bulging deformation under the continuous pressure of the stacked cigarettes inside.

[0003] To address the aforementioned deformation issues, existing technologies commonly employ a method of overall downward pressure for repair. This involves applying vertical downward pressure to the deformed area of ​​the cigarette box to restore its original flat shape. However, cigarette boxes often contain air. During the overall pressure process, this air is rapidly compressed but cannot be evenly expelled, resulting in uneven stress within the cardboard and causing minor bulges or collapses in certain areas. Furthermore, while rigid pressure can correct the cigarette box, the resulting rigid scraping can easily damage its surface. Therefore, while overall pressure can roughly correct the box's outline, it is difficult to achieve a completely flat surface, potentially affecting subsequent stacking stability and appearance neatness, and even reducing packaging efficiency and increasing packaging waste to some extent. Summary of the Invention

[0004] The purpose of this invention is to provide a cigarette box circulation line conveying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cigarette box circulation line conveying device, including a conveyor belt, a spring sheet on the conveyor belt, and a pressure cover structure on the conveyor belt, the pressure cover structure including a pressure structure and an elastic cover structure; The pressing structure includes at least one pressing cylinder, and a connecting rod is connected to the output shaft of the pressing cylinder. The elastic cover structure includes a rigid cover body connected to the lower part of the connecting rod, and an elastic cover body is provided inside the rigid cover body; Below the lower pressure cover structure is a lifting structure, which includes a power unit and a sealing unit; The power unit includes a motor and a screw. The motor can drive the screw to rotate, and a sealing part is installed on the screw. A floating plate is provided above the lifting frame, and the floating plate is located directly below the rigid cover.

[0006] Preferably, the conveyor belt is provided with limiting platforms on both sides, and the conveyor belt includes 8-10 belts arranged side by side at equal intervals.

[0007] Preferably, the spring clips are evenly spaced on each belt.

[0008] Preferably, the bottom of the rigid cover is provided with a sealing strip, and the top of the rigid cover is provided with a connecting piece, which is fixedly connected to the connecting rod.

[0009] Preferably, the downward pressing cylinder is fixedly mounted on the transverse support, and the transverse support is fixedly mounted on the conveyor belt.

[0010] Preferably, the edge of the elastic cover is fixedly installed at the opening of the rigid cover, and an elastic band is provided on the side wall of the elastic cover, with the bottom of the elastic band fixedly installed on the rigid cover.

[0011] Preferably, a counterweight block with a fixed position is provided at the center of the elastic cover.

[0012] Preferably, the motor is fixedly mounted on a motor bracket, and the motor bracket has pulleys on both sides. The pulleys are coaxially mounted with the screw, and the motor drives the screw to rotate through the pulleys.

[0013] Preferably, the sealing part includes a lifting frame, a sealing plate, and a suction nozzle. The two ends of the lifting frame are threaded to a screw. The sealing plate is fixedly installed on the lifting frame and located below the floating plate. The suction nozzle is disposed on the sealing plate.

[0014] Preferably, the floating plate has elastic elements at both ends, with the upper end of the elastic element located below the floating plate and the lower end of the elastic element located above the lifting frame.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: This invention, through a pressure cover structure, a floating plate, and a suction device, can actively and continuously extract air from the sealed chamber, including gas squeezed out from inside the cardboard, when pressure is applied to the deformable box. This fundamentally eliminates the uneven internal pressure and local bulging caused by the inability to expel air in traditional integral pressing methods, ensuring that the corrective pressure is applied evenly to the box, thereby obtaining an extremely smooth repair surface.

[0016] Meanwhile, the elastic cover structure can adaptively conform to the convex deformation surface of the cigarette box under pressure, transforming the concentrated rigid downward pressure into a large-area distributed flexible wrapping pressure. This contour-following fitting method not only significantly improves the fit and effect of correction, but also avoids rigid scratches or hard damage to the paper box. While efficiently shaping, it effectively protects the structural integrity of the box material, increasing the number of times it can be reused and its reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 Cross-sectional view of the inner AA section; Figure 4 for Figure 3 Enlarged view of the structure at point B inside; Figure 5 This is an enlarged view of the lower pressure shield structure; Figure 6 This is an exploded view of the lifting structure.

[0018] The attached diagram is labeled as follows: 1-Conveyor belt; 11-Limiting platform; 5-Spring sheet; 2-Pressure cover structure; 21-Pressure structure; 211-Pressure cylinder; 212-Connecting rod; 213-Transverse support; 22-Elastic cover structure; 221-Rigid cover; 222-Elastic cover; 223-Sealing strip; 224-Elastic belt; 225-Counterweight; 3-Lifting structure; 31-Power unit; 311-Motor; 312-Screw; 313-Lifting frame; 314-Motor support; 32-Sealing part; 321-Lifting frame; 322-Sealing plate; 323-Suction nozzle; 4-Floating plate; 41-Elastic component. Detailed Implementation

[0019] The following detailed description of the embodiments, with reference to the accompanying drawings, will further illustrate the specific implementation of the present invention, in order to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of the present invention.

[0020] like Figure 1-6As shown, this invention provides a cigarette box circulation conveyor, including a conveyor belt 1 for conveying cigarette boxes. A downward pressure cover structure 2 is provided above the conveyor belt 1. The downward pressure cover structure 2 includes a downward pressure structure 21 and an elastic cover structure 22; the downward pressure structure 21 includes at least one downward pressure cylinder 211, and a connecting rod 212 is connected to the output shaft of the downward pressure cylinder 211; the elastic cover structure 22 includes a rigid cover 221, which is connected below the connecting rod 212, and an elastic cover 222 is provided inside the rigid cover 221. Below the conveyor belt 1, corresponding to the position of the downward pressure cover structure 2, a lifting structure 3 is provided. The lifting structure 3 includes a power part 31 and a sealing part 32; the power part 31 includes a motor 311 and a screw 312, the motor 311 can drive the screw 312 to rotate, and the sealing part 32 is installed on the screw 312. A floating plate 4 is also included, located above the sealing part 32 and directly below the rigid cover 221.

[0021] In this embodiment, limiting platforms 11 are provided on both sides of the conveyor belt 1 to guide and limit the tobacco box, preventing it from deviating. The conveyor belt 1 includes 8 to 10 belts arranged side by side at equal intervals, with gaps between the belts. On each belt, spring pieces 5 are arranged at equal intervals. These spring pieces 5 can increase the friction with the bottom of the tobacco box and help to straighten the posture of the tobacco box during the conveying process. At the same time, the multi-point support of the spring pieces 5 can help prevent the air inside the tobacco box from being subjected to overall pressure during the downward shaping, thus avoiding poor exhaust.

[0022] In this embodiment, a sealing strip 225 is provided at the bottom edge of the rigid cover 221 to enhance the sealing performance when in contact with the floating plate 4. The top of the rigid cover 221 is fixedly connected to the connecting rod 212 by a connecting piece. The downward pressing cylinder 211 is fixedly mounted on the transverse support 213, which is fixedly mounted on the frame of the conveyor belt 1.

[0023] In this embodiment, the edge of the elastic cover 222 is fixedly installed inside the opening of the rigid cover 221. The elastic cover 222 is preferably a cover-shaped body made of flexible rubber or silicone. An elastic band 224 is connected to the side wall of the elastic cover 222, and the bottom of the elastic band 224 is fixedly installed on the inner side wall of the rigid cover 221. This band provides elastic force from the edge after the elastic cover 222 deforms due to air extraction and maintains the shape of the elastic cover 222 when not in operation. A fixed counterweight 225 is provided at the center of the elastic cover 222, which helps the central part of the elastic cover 222 to contact the smoke box preferentially when pressed down, and makes its deformation more uniform.

[0024] In this embodiment, the motor 311 is fixedly mounted via a motor bracket 314. The output end of the motor 311 is connected to the screw 312 via a belt drive mechanism, thereby driving the screw 312 to rotate. Pulleys are provided on both sides of the motor bracket 314, and the pulleys are coaxially mounted with the screw 312. The motor 311 drives the pulleys via a belt, thereby driving the screw 312 to rotate synchronously.

[0025] Furthermore, the sealing part 32 includes a lifting frame 321, a sealing plate 322, and a suction nozzle 323. The lifting frame 321 has threaded holes at both ends that mate with screws 312, and is threadedly connected to the two screws 312. When the screws 312 rotate, the lifting frame 321 can move up and down along the screws 312. The sealing plate 322 is fixedly installed on the lifting frame 321, and its area and shape are designed to seal the bottom opening of the floating plate 4. The suction nozzle 323 is located on the sealing plate 322 and is externally connected to a vacuum generator for drawing air, causing the elastic cover 222 to press down on the smoke box due to the vacuum. Elastic members 41 are located below both ends of the floating plate 4, and the lower ends of the elastic members 41 are supported on the lifting frame 321. When the lifting frame 321 rises, the floating plate 4 is lifted by the elastic element 41, while the rigid cover 221 above is pressed down. By pressing down and lifting up at the same time, the rigid cover 221, the floating plate 4 and the sealing plate 322 press against each other to form a sealed structure.

[0026] Working principle: The deformed cigarette box to be repaired is fed in by the conveyor belt 1. Under the guidance of the limiting platform 11, the deformed bulging side moves to the area directly above the floating plate 4 and then stops or is located by the sensor.

[0027] The motor 311 is started, driving the screw 312 to rotate, which in turn causes the lifting frame 321 to rise. The sealing plate 322 on the lifting frame 321 first contacts and seals the floating plate 4, while continuing to rise and compress the elastic element 41, thereby smoothly lifting the floating plate 4 upwards until it approaches the elastic cover 222 above.

[0028] The hydraulic cylinder 211 is activated, pushing the rigid cover 221 and the elastic cover 222 downwards as a whole. Under the action of the counterweight 225, the central part of the elastic cover 222 first contacts the protruding part of the smoke box. At this time, a well-sealed chamber is formed between the elastic cover 222, the surface of the smoke box, the floating plate 4, and the sealing plate 322. The vacuum pump, which has been activated, continuously draws air from the suction nozzle 323. This air-drawing process ensures that the central counterweight 225 of the elastic cover 222 first contacts the center of the smoke box, and then, through continuous vacuum suction, the elastic cover 222 contacts the smoke box from the center, achieving the effect of driving the air outwards from the center of the smoke box. This ensures that while applying shaping pressure, internal air is effectively removed, avoiding local bulging, and ensuring even pressure distribution for smooth repair.

[0029] After repair, the lowering cylinder 211 retracts, causing the lowering cover structure 2 to rise and reset. Then, the motor 311 reverses, driving the lifting frame 321 and the sealing plate 322 to descend. The floating plate 4, having lost its support, falls back to its original position under gravity. Finally, the conveyor belt 1 restarts, sending the repaired and leveled cigarette box out of the station for subsequent binding or stacking processes.

[0030] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A cigarette box circulating conveyor system, characterized in that: Includes a conveyor belt (1), on which spring sheets (5) are provided, and on which a pressure cover structure (2) is provided, the pressure cover structure including a pressure structure (21) and an elastic cover structure (22). The pressing structure (21) includes at least one pressing cylinder (211), and a connecting rod (212) is connected to the output shaft of the pressing cylinder (211). The elastic cover structure (22) includes a rigid cover (221), which is connected to the bottom of the connecting rod (212), and the interior of the rigid cover (221) is provided with an elastic cover (222). The lower pressure cover structure (2) is provided with a lifting structure (3), which includes a power part (31) and a sealing part (32). The power unit (31) includes a motor (311) and a screw (312). The motor (311) can drive the screw (312) to rotate. A sealing part (32) is installed on the screw (312). A floating plate (4) is provided above the lifting frame (313), and the floating plate (4) is located directly below the rigid cover (221).

2. The cigarette box circulating conveyor according to claim 1, characterized in that: The conveyor belt (1) is provided with limiting platforms (11) on both sides, and the conveyor belt (1) includes 8-10 belts arranged side by side at equal intervals.

3. The cigarette box circulating conveyor according to claim 2, characterized in that: The spring clips (5) are evenly spaced on each belt.

4. The cigarette box circulating conveyor according to claim 1, characterized in that: The bottom of the rigid cover (221) is provided with a sealing strip (223), and the top of the rigid cover (221) is provided with a connecting piece, which is fixedly connected to the connecting rod (212).

5. The cigarette box circulating conveyor according to claim 1, characterized in that: The downward pressure cylinder (211) is fixedly installed on the transverse support (213), and the transverse support (213) is fixedly installed on the conveyor belt (1).

6. The cigarette box circulating conveyor according to claim 1, characterized in that: The edge of the elastic cover (222) is fixedly installed at the opening of the rigid cover (221), and an elastic band (224) is provided on the side wall of the elastic cover (222). The bottom of the elastic band (224) is fixedly installed on the rigid cover (221).

7. A cigarette box circulating conveyor according to claim 6, characterized in that: The elastic cover (222) has a fixed counterweight (225) at its center.

8. The cigarette box circulating conveyor according to claim 1, characterized in that: The motor (311) is fixedly mounted on the motor bracket (314). The motor bracket (314) has pulleys on both sides. The pulleys are coaxially mounted with the screw (312). The motor (311) drives the screw (312) to rotate through the pulleys.

9. A cigarette box circulating conveyor according to claim 1, characterized in that: The sealing part (32) includes a lifting frame (321), a sealing plate (322) and a suction nozzle (323). The two ends of the lifting frame (321) are threaded to the screw (312). The sealing plate (322) is fixedly installed on the lifting frame (321) and located at the bottom of the floating plate (4). The suction nozzle (323) is set on the sealing plate (322).

10. A cigarette box circulating conveyor according to claim 9, characterized in that: The floating plate (4) has elastic elements (41) at both ends. The upper end of the elastic element (41) is located below the floating plate (4), and the lower end of the elastic element (41) is located above the lifting frame (321).

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