A small box inspection and rejection device for a roll packaging machine

Abstract

This utility model belongs to the technical field of cigarette box rejection and installation for export, and discloses a cigarette box verification and rejection device for a cigarette packing machine. The device is installed on a belt conveyor and includes a pair of parallel guide baffles fixed to the conveyor frame. A limiting channel for a single cigarette box is formed between the two guide baffles. The feeding ends of the two guide baffles are equipped with a differential feeding mechanism. A barcode reader for identifying cigarette boxes within the limiting channel is mounted on one guide baffle via a mounting frame. The discharge end of one guide baffle is equipped with a nozzle perpendicular to the conveying direction, and the other guide baffle is equipped with a rejection outlet corresponding to the nozzle position. This utility model uses a differential feeding mechanism to evenly separate the cigarette boxes, facilitating subsequent barcode verification and rejection. Furthermore, the use of a nozzle for rejection ensures no contact damage to the cigarette boxes and offers high work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of export cigarette box rejection technology, and in particular to a small box inspection and rejection device for cigarette packaging machines. Background Technology

[0002] Tobacco rolling machines are essential equipment in the rolling workshops of tobacco industrial enterprises. Cigarette rolling equipment generally consists of several parts, including small box rolling machines, transparent paper small pack rolling machines, carton (box) rolling machines, and transparent paper strip rolling machines. Tobacco rolling machines are the result of the comprehensive application of advanced technologies such as frequency conversion speed regulation, photoelectric detection, quality monitoring, modular structure design, video display, and robotic arms. They possess a high degree of automation, high packaging speed and quality, and can meet diverse packaging requirements.

[0003] During the production of exported cigarettes, errors in the printing of QR codes on the small pack labels, such as incorrect, damaged, or duplicate codes, lead to incorrect association of QR codes on subsequent pack strips. The system cannot correctly associate the pack strip data, reducing the production association rate. Therefore, it is necessary to promptly remove these problematic small packs from the production line at the back end of the packaging machine to improve the customer's production association rate. Existing devices of this type only have a rejection function, primarily using a cylinder rejection mechanism. This requires compressed air to drive the cylinder as the rejection power, but cylinders have a limited lifespan and complex installation requirements. Summary of the Invention

[0004] To overcome the technical defects of the existing technology, this utility model provides a small box verification and rejection device for a roll packaging machine. The device uses a differential speed feeding mechanism to evenly separate the small box products, which facilitates subsequent code reading verification and rejection. Furthermore, it uses a blower for rejection, which is non-contact and will not damage the small box. It also has the advantage of high work efficiency.

[0005] The technical solution adopted by this utility model is: a small box inspection and rejection device for a cigarette packing machine. The device is installed on a belt conveyor and includes a pair of parallel guide baffles fixed on the belt conveyor frame. A limiting channel for a single cigarette box to pass through is formed between the two guide baffles. The feeding end of the two guide baffles is provided with a differential feeding mechanism. The differential feeding mechanism includes a driven shaft installed between the two guide baffles via a fixing block. A rubber-coated roller is installed on the driven shaft, and a feeding port is formed between the rubber-coated roller and the conveyor belt of the belt conveyor. A drive mechanism for driving the driven shaft is installed on one of the guide baffles. A barcode reader for identifying cigarette boxes in the limiting channel is installed on one of the guide baffles via a mounting bracket. The guide baffle is provided with an identification window corresponding to the position of the barcode reader. The discharge end of one guide baffle is provided with a nozzle arranged perpendicular to the conveying direction, and the other guide baffle is provided with a rejection outlet corresponding to the position of the nozzle.

[0006] Preferably, the two guide baffles are equipped with a rejection cover plate located above the rejection outlet.

[0007] Preferably, the drive mechanism includes a driven pulley with a radius smaller than that of the rubber-coated roller, which is mounted on the driven shaft; a drive shaft is installed between the two guide baffles via a support seat; a drive pulley is provided on the drive shaft; a drive belt is provided between the drive pulley and the driven pulley; and a servo motor for driving the drive shaft to rotate is installed on one side of the support seat.

[0008] Preferably, the height adjustment structure between the fixed block and the driven shaft includes a vertically arranged through groove on the fixed block, an adjustment block that moves along the through groove, a vertically upward screw on the adjustment block, a through hole on the fixed block for the end of the screw to pass through, and locking caps threaded on both sides of the screw located in the through hole. The shaft end of the driven shaft is rotatably connected to the adjustment block via a bearing.

[0009] Preferably, a protective cover for covering each component is installed between the guide baffles.

[0010] Preferably, the feed ends of the two guide baffles are provided with guide openings that open in a figure-eight shape.

[0011] Preferably, the fixing block is fixed to the guide baffle by bolts.

[0012] Preferably, the support base is fixed to the guide baffle by bolts.

[0013] Preferably, the guide baffle is provided with multiple mounting holes.

[0014] The beneficial effects of this utility model are as follows: Under the conveying action of the belt conveyor, the cigarette boxes enter the limiting channel formed by two guide baffles, through which a single cigarette box passes. First, they enter the differential feeding mechanism composed of a rubber-coated roller, a driven shaft, and a drive mechanism that drives the driven shaft. The products are evenly separated, which facilitates subsequent code reading verification and rejection. The code reader reads the code, completes the QR code collection and verification work, and feeds back the verification result to the air blowing rejection station. If it is NG, it is rejected by blowing air; if it is OK, it passes normally. The rejection is carried out by blowing nozzles, which is non-contact and will not damage the small boxes. It also has the advantage of high work efficiency. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

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

[0017] Figure 2 This is a schematic diagram showing the location of the identification window in this utility model;

[0018] Figure 3 This is a schematic diagram of the height adjustment structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the protective cover of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Guide baffle; 2. Fixing block; 3. Driven shaft; 4. Rubber-coated roller; 5. Code reader; 6. Mounting bracket; 7. Identification window; 9. Nozzle; 10. Discarding outlet; 12. Driven pulley; 13. Support base; 14. Drive shaft; 15. Drive pulley; 16. Drive belt; 17. Servo motor; 18. Through slot; 19. Adjusting block; 20. Screw; 21. Locking cap; 22. Protective cover; 23. Cigarette box. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0022] like Figures 1-4 As shown, this embodiment provides a small box inspection and rejection device for a cigarette packing machine. The device is installed on a belt conveyor and includes a pair of parallel guide baffles 1 fixed on the belt conveyor frame. A limiting channel for a single cigarette box 23 to pass through is formed between the two guide baffles 1. The feeding end of the two guide baffles 1 is provided with a differential feeding mechanism. The differential feeding mechanism includes a driven shaft 3 installed between the two guide baffles via a fixing block 2. A rubber-coated roller 4 is installed on the driven shaft 3. A feeding port is formed between the rubber-coated roller 4 and the conveyor belt of the belt conveyor. A drive mechanism for driving the driven shaft 3 is installed on one of the guide baffles 1.

[0023] One of the guide baffles 1 is equipped with a barcode reader 5 for identifying cigarette boxes 23 in the limiting channel via a mounting bracket 6. The guide baffle 1 is provided with an identification window 7 corresponding to the position of the barcode reader 5.

[0024] One guide baffle 1 has a nozzle 9 that is perpendicular to the conveying direction at its discharge end, and another guide baffle 1 has a scraping outlet 10 that corresponds to the position of the nozzle 9.

[0025] The entire device is divided into front, middle, and rear sections. The front section is the differential speed station corresponding to the differential speed feeding mechanism. The middle section is the small box associated verification channel station, which corresponds to the code reader 5. The air-blowing rejection station at the rear is located at this station. The small box verification channel station connects the front and rear stations.

[0026] The cigarette boxes, conveyed by a belt conveyor, enter a limiting channel formed between two guide baffles 1, allowing individual cigarette boxes 23 to pass through. They first enter a differential feeding mechanism consisting of a rubber-coated roller 4, a driven shaft 3, and a drive mechanism that drives the driven shaft 3. The cigarette boxes 23 are differentially separated. Multiple photoelectric position sensors (not shown in the diagram) are installed on the guide baffles to detect the position of the cigarette boxes 23 during conveying. When a position sensor detects a separated box, it sends a code reading signal to a code reader. The code reader completes the QR code acquisition and verification, feeding the verification result back to the air-blowing rejection station. If the result is NG (not acceptable), the box is rejected by air; if it is OK, it passes normally. Rejection is performed using a blower, thus avoiding contact and preventing damage to the box. The device also includes an air supply system for the blower, with a control valve between the blower and the air supply system for easy control of the blower's operation. This is existing technology, well-known to those skilled in the art, and will not be described further. The innovative aspect of this utility model is the use of a differential feeding mechanism in conjunction with air-blowing rejection.

[0027] This invention uses a differential feeding mechanism to evenly separate small box products, facilitating subsequent code reading verification and rejection.

[0028] As a technical optimization of this utility model, two guide baffles 1 are equipped with a rejection cover plate above the rejection outlet 10, which limits the cigarette box rejected by the air and prevents it from flying upward.

[0029] As a technical optimization of this utility model, the drive mechanism includes a driven pulley 12 with a radius smaller than that of the rubber-coated roller 4, which is mounted on the driven shaft. A drive shaft 14 is installed between the two guide baffles 1 via a support seat 13. A drive pulley 15 is provided on the drive shaft 14. A drive belt 16 is provided between the drive pulley and the driven pulley 12. A servo motor 17 that drives the drive shaft 14 to rotate is installed on one side of the support seat 13. This has the characteristics of easy control and simple structure.

[0030] As a technical optimization of this utility model, a height adjustment structure is provided between the fixed block 2 and the driven shaft 3. The height adjustment structure includes a vertically arranged through groove 18 on the fixed block 2, an adjustment block 19 that moves along the through groove 18, a vertically upward screw 20 on the adjustment block 19, a through hole on the fixed block 2 for the end of the screw 20 to pass through, and locking caps 21 threaded on both sides of the screw 20 located in the through hole. The shaft end of the driven shaft 3 is rotatably connected to the adjustment block 19 via a bearing. This allows a feeding port to be formed between the rubber-coated roller 4 and the conveyor belt of the belt conveyor for height adjustment. This is suitable for the rejection of small box products with similar dimensions but different thicknesses.

[0031] As a technical optimization of this utility model, a protective cover 22 is installed between the guide baffles 1 to cover the various components, which plays a protective role.

[0032] As a technical optimization of this utility model, the feeding ends of the two guide baffles 1 are provided with guide openings that open in a figure-eight shape, so that the cigarette box can enter the limiting guide. The fixing block 2 is fixed to the guide baffle 1 by bolts, so as to facilitate installation and disassembly. The support base 13 is fixed to the guide baffle 1 by bolts, so as to facilitate installation and disassembly. The guide baffle 1 is provided with multiple mounting holes, so as to facilitate installation and disassembly.

[0033] Working principle: The entire device is divided into front, middle and rear sections. The front section is the differential speed station corresponding to the differential speed feeding mechanism. The middle section is the small box associated verification channel station, which corresponds to the code reader 5. The air-blowing rejection station at the rear is located at this station. The small box verification channel station connects the front and rear stations.

[0034] The cigarette boxes, conveyed by the belt conveyor, enter the limiting channel formed between two guide baffles 1, through which a single cigarette box 23 passes. First, they enter the differential feeding mechanism composed of a rubber-coated roller 4, a driven shaft 3, and a drive mechanism that drives the driven shaft 3. The cigarette boxes 23 are separated differentially. The guide baffles are also equipped with multiple photoelectric position sensors to detect the position of the cigarette boxes during the conveying process. When the position sensor detects the separated small box, it sends a code reading signal to the code reader. The code reader completes the QR code acquisition and verification work and feeds back the verification result to the air blowing rejection station. If it is NG, it is rejected by air blowing; if it is OK, it passes normally.

[0035] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A cellophane case checking and ejecting device for a cellophane wrapping machine, said device being mounted on a belt conveyor, characterized in that: Includes a pair of parallel guide baffles (1) fixed on the frame of the belt conveyor, forming a limiting channel for a single cigarette box (23) to pass through between the two guide baffles (1), and a differential feeding mechanism provided at the feeding end of the two guide baffles (1). The differential feeding mechanism includes a driven shaft (3) installed between the two guide baffles via a fixing block (2), and a rubber-coated roller (4) installed on the driven shaft (3). The rubber-coated roller (4) forms a feeding port between the conveyor belt and the belt conveyor. A drive mechanism for driving the driven shaft (3) is installed on one side of the guide baffle (1). A barcode reader (5) for identifying cigarette boxes (23) in the limiting channel is installed on one of the guide baffles (1) via a mounting bracket (6). The guide baffle (1) is provided with an identification window (7) corresponding to the position of the barcode reader (5). One of the guide baffles (1) has a nozzle (9) that is perpendicular to the conveying direction at the discharge end, and the other guide baffle (1) has a scraping outlet (10) that corresponds to the position of the nozzle (9).

2. The packer case check and reject apparatus of claim 1, wherein: The two guide baffles (1) are equipped with a rejection cover above the rejection outlet (10).

3. The small box inspection and rejection device for the roll packaging machine according to claim 1, characterized in that: The drive mechanism includes a driven pulley (12) with a radius smaller than that of the rubber-coated roller (4) mounted on the driven shaft, a drive shaft (14) is mounted between the two guide baffles (1) via a support seat (13), and a drive pulley (15) is provided on the drive shaft (14), and a drive belt (16) is provided between the drive pulley and the driven pulley (12), and a servo motor (17) for driving the drive shaft (14) to rotate is mounted on one side of the support seat (13).

4. The packer case check and reject apparatus of claim 1 wherein: The height adjustment structure between the fixed block (2) and the driven shaft (3) includes a vertically arranged through groove (18) on the fixed block (2), an adjustment block (19) that moves along the through groove (18) in the through groove (18), a vertically upward screw (20) on the adjustment block (19), a through hole for the end of the screw (20) to pass through on the fixed block (2), and locking caps (21) threaded on both sides of the screw (20) on the screw (20). The shaft end of the driven shaft (3) is rotatably connected to the adjustment block (19) via a bearing.

5. The packer belt checker and ejector device of claim 1 wherein: A cover (22) for covering each component is installed between the guide baffles (1).

6. The packer belt checker and ejector device of claim 1, wherein: The two guide baffles (1) have guide openings that open in a figure-eight shape at their feed ends.

7. The packer belt checker and ejector device of claim 1, wherein: The fixing block (2) is fixed to the guide baffle (1) by bolts.

8. The packer carton verification and rejection apparatus of claim 3, wherein: The support base (13) is fixed to the guide baffle (1) by bolts.

9. The packer belt checker and ejector device of claim 1, wherein: The guide baffle (1) is provided with multiple mounting holes.

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