Deformed cigarette bar detecting and removing device

By using a rejection device that attaches double-sided tape to the conveyor belt, the problem of requiring high-precision sensors for detecting deformed cigarette sticks is solved, achieving a low-cost and easy-to-use cigarette stick rejection effect.

CN224157331UActive Publication Date: 2026-04-24HONGYUN HONGHE TOBACCO (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGYUN HONGHE TOBACCO (GRP) CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing technologies for detecting deformed cigarette bars rely on high-precision sensors and precise delay settings, resulting in high component costs and difficult setup.

Method used

A rejection device using double-sided adhesive tape attached to a conveyor belt is employed. The rotational motion of the conveyor belt causes the raised part of the deformed cigarette stick to adhere to the double-sided adhesive tape, and the movement of the conveyor belt removes it, thus avoiding reliance on sensors and precise time delays.

Benefits of technology

It enables the effective detection and removal of deformed cigarette bars, reduces component costs and setup difficulty, and simplifies the equipment structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224157331U_ABST
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Abstract

A deformed cigarette bar detecting and removing device comprises a conveying device, and a removing and conveying device is arranged above the conveying device. The removing and conveying device comprises a conveying support and a conveying belt, the conveying belt is arranged on the conveying support and does rotary motion on the conveying support, a gap for qualified cigarette cartons to penetrate through exists between the bottom face of the conveying belt and the conveying face of the conveying device, and a double-sided adhesive tape is arranged on the conveying belt in an adhering mode. The utility model aims to provide the deformed cigarette bar detecting and removing device so as to detect and remove deformed cigarette bars, and purchase cost and arrangement difficulty of components are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of packaging inspection technology, specifically to a device for detecting and rejecting deformed cigarette packs. Background Technology

[0002] Currently, once the cigarette sticks are produced, they must be protected by adding transparent paper packaging through a cigarette stick beautifying container. The produced cigarette sticks need to be pushed into the beautifying container through the conveying channel by the CV cigarette stick second lifter.

[0003] In actual production, cigarette sticks may become deformed due to blockages during packaging and transportation. Deformed cigarette sticks are characterized by one side being compressed and thinner, while the other side is warped and thicker. Existing detection and rejection processes use sensors to detect deformation. After a delay, a rejection cylinder is activated to remove the defective cigarette sticks. This method relies on high-precision sensors and precisely set delay times, resulting in high component costs and significant setup difficulties. Therefore, this invention provides a deformed cigarette stick detection and rejection device. Utility Model Content

[0004] The purpose of this invention is to provide a deformed cigarette bar detection and rejection device, so as to realize the detection and rejection of deformed cigarette bars, and reduce the purchase cost of components and the difficulty of setting up.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A deformed cigarette stick detection and rejection device includes a conveying device, and a rejection conveying device is arranged above the conveying device;

[0007] The rejection conveying device includes a conveying support and a conveyor belt. The conveyor belt is mounted on the conveying support and rotates on the conveying support. There is a gap between the bottom surface of the conveyor belt and the conveying surface of the conveying device for qualified cigarette sticks to pass through. Double-sided adhesive tape is pasted on the conveyor belt.

[0008] Furthermore, the inner sides of the two side walls of the conveying device are provided with cigarette box guide rods, and the two side walls of the conveying device are provided with notches. The rejection conveying device passes through the notches, and a collection groove is provided at one of the notches.

[0009] Furthermore, a bracket is connected to the side wall of the conveying device, and the rejection conveying device can be raised and lowered and installed below the bracket.

[0010] Furthermore, the support is provided with a screw sleeve, and the conveying support is provided with a connecting frame. A screw is threadedly connected to the screw sleeve, and the bottom end of the screw is rotatably connected to the connecting frame. Guide rods are also provided on both sides of the conveying support, and a guide rod sleeve is also provided on the side of the conveying device, with the guide rod passing through the guide rod.

[0011] Furthermore, the conveying direction of the conveyor belt forms an angle α with the conveying direction of the conveying device, and the angle α is 120°-135°.

[0012] Furthermore, the conveying support includes a side plate, an upper support plate, end rollers, and a lower support plate. The upper support plate is fixedly arranged between the two side plates. At least two springs are arranged on the bottom surface of the upper support plate, and the bottom ends of the springs are connected to the lower support plate. End rollers are rotatably arranged at both ends of the side plates. One of the end rollers is connected to a motor. The conveyor belt is wound around the two end rollers, and the inner side of the conveyor belt is in contact with the upper and lower support plates.

[0013] Furthermore, a double-sided tape mounting roller is provided at one end of the side plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a rejection conveyor above the conveying device. Double-sided adhesive tape is attached to the conveyor belt of the rejection conveyor, and a gap exists between the bottom surface of the conveyor belt and the conveying surface of the conveying device. This gap allows qualified cigarette sticks to pass through. When a deformed cigarette stick is present, the raised portion adheres to the double-sided adhesive tape on the conveyor belt and is conveyed to the side along with the conveyor belt, thus achieving the detection and rejection of deformed cigarette sticks. This device does not require sensors, cylinders, or other components, nor does it require precise setting of delay time. Compared to existing technologies, it eliminates the need for precision components, reducing costs and installation difficulty. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the other side of the present invention.

[0018] Figure 3 This is a side view of the present invention.

[0019] Figure 4 This is a top view of the present invention.

[0020] Figure 5 This is a disassembly diagram of the support frame and the conveyor support frame.

[0021] In the figure, 1-conveyor device, 1a-notch, 2-cigarette box guide rod, 3-bracket, 4-collection trough, 5-conveyor bracket, 51-side plate, 52-upper support plate, 53-end roller, 54-spring, 55-lower support plate, 6-conveyor belt, 7-double-sided tape, 8-double-sided tape roll mounting roller, 9-motor, 10-screw, 11-connecting frame, 12-guide rod, 13-guide rod sleeve, 14-screw sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Please see Figure 1-2 This utility model provides a deformed cigarette stick detection and rejection device, which is designed to detect and reject deformed cigarette sticks caused by blockage during the lifting and conveying process of the second lifter of the CV cigarette stick. The deformation is characterized by a decrease in thickness on one side due to compression and an increase in thickness on the other side due to warping. The device includes a conveying device 1, and a rejection conveying device is provided above the conveying device 1.

[0026] The rejection conveying device includes a conveying support 5 and a conveyor belt 6. The conveyor belt 6 is mounted on the conveying support 5 and rotates on the conveying support 5. There is a gap between the bottom surface of the conveyor belt 6 and the conveying surface of the conveying device 1 for qualified cigarette sticks to pass through. This gap needs to be set according to the thickness of the qualified cigarette sticks. Figure 3As shown, the gap is denoted as L. Preferably, the gap L satisfies: 1mm + cigarette box thickness ≤ L ≤ 3mm + cigarette box thickness. Double-sided adhesive tape 7 is pasted on the conveyor belt 6. When the deformed cigarette stick passes through, the side with increased thickness will adhere to the double-sided adhesive tape 7. Under the rotation of the conveyor belt 6, it moves along the conveying direction of the conveyor belt 6 and leaves the conveying device 1, thereby realizing the detection and rejection process of the deformed cigarette stick.

[0027] In some embodiments, cigarette box guide rods 2 are provided on the inner sides of the two side walls of the conveying device 1 to guide the conveyed cigarette strips. Notches 1a are provided on the two side walls of the conveying device 1, through which the rejection conveying device passes. The bottom edge of the notch 1a is flush with the conveying surface of the conveying device 1. A collection groove 4 is provided at one of the notches 1a to collect the rejected deformed cigarette strips.

[0028] A bracket 3 is connected to the side wall of the conveying device 1, and the rejection conveying device can be raised and lowered and installed below the bracket 3.

[0029] Specifically, the support 3 is provided with a screw sleeve 14, and the conveying support 5 is provided with a connecting frame 11. The screw sleeve 14 is threadedly connected with a screw 10, and the bottom end of the screw 10 is rotatably connected to the connecting frame 11. The conveying support 5 is also provided with guide rods 12 on both sides, and a guide rod sleeve 13 is also provided on the side of the conveying device 1. The guide rod 12 is inserted in the guide rod 12. Preferably, the guide rod 12 is provided with a scale, and the "0" position of the scale is exactly the bottom surface of the conveying support 5.

[0030] In actual use, the height of the conveyor bracket 5 is adjusted according to the thickness of the qualified cigarette sticks. Adjustment is done simply by turning the screw 10.

[0031] It is worth noting that, reference Figure 4 As shown, the conveying direction of the conveyor belt 6 forms an angle α with the conveying direction of the conveying device 1, and the angle α is 120°-135°. By forming this angle, when a deformed cigarette stick appears, the conveyor belt 6 will not directly block the deformed cigarette stick, but will gradually move the originally straightened cigarette stick along the conveying direction of the conveyor belt 6.

[0032] refer to Figure 5As shown, in this embodiment, the conveying support 5 includes a side plate 51, an upper support plate 52, end rollers 53, and a lower support plate 55. An upper support plate 52 is fixedly disposed between the two side plates 51. At least two springs 54 are disposed on the bottom surface of the upper support plate 52, and the bottom ends of the springs 54 are connected to the lower support plate 55, allowing the lower support plate 55 to move slightly under elastic force. End rollers 53 are rotatably disposed at both ends of the side plates 51, one of which is connected to a motor 9. The conveyor belt 6 is wound around the two end rollers 53, and the inner side of the conveyor belt 6 is connected to the upper support plate 55. When the plate 52 and the lower support plate 55 are in contact, it should be noted that the bottom surface of the conveyor belt 6 must extend beyond the bottom edge of the side plate 51. Otherwise, it will block the deformed cigarette strip and make it impossible to remove. Since the lower support plate 55 is not rigidly set, it will move upward due to the obstruction of the deformed cigarette, thereby increasing the contact area between the double-sided tape 7 and the deformed cigarette strip. However, if the lower support plate 55 is fixed, the conveyor belt 6 cannot adaptively adjust, and the deformed cigarette strip and the double-sided tape 7 will only have line contact, resulting in poor adhesion and removal effect.

[0033] To facilitate the installation of double-sided tape 7 on the conveyor belt 6, a double-sided tape roll mounting roller 8 is provided at one end of the side plate 51. When the double-sided tape 7 is pasted on the conveyor belt 6, the end of the double-sided tape roll on the mounting roller 8 is pulled out and pasted on the conveyor belt 6. When the motor 9 is turned on and the conveyor belt 6 rotates, the double-sided tape is also pasted on the conveyor belt 6.

[0034] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. A deformed cigarette bar detection and rejection device, comprising a conveying device (1), characterized in that: A rejection conveying device is provided above the conveying device (1); The rejection conveying device includes a conveying bracket (5) and a conveyor belt (6). The conveyor belt (6) is set on the conveying bracket (5) and the conveyor belt (6) rotates on the conveying bracket (5). There is a gap between the bottom surface of the conveyor belt (6) and the conveying surface of the conveying device (1) for qualified cigarette sticks to pass through. Double-sided tape (7) is pasted on the conveyor belt (6).

2. The deformed cigarette bar detection and rejection device according to claim 1, characterized in that: The inner sides of the two side walls of the conveying device (1) are provided with cigarette box guide rods (2), and the two side walls of the conveying device (1) are provided with notches (1a). The rejection conveying device passes through the notches (1a), and a collection trough (4) is provided at one of the notches (1a).

3. The deformed cigarette bar detection and rejection device according to claim 1, characterized in that: A bracket (3) is connected to the side wall of the conveying device (1), and the rejection conveying device can be raised and lowered and installed below the bracket (3).

4. The deformed cigarette bar detection and rejection device according to claim 3, characterized in that: The support (3) is provided with a screw sleeve (14), and the conveying support (5) is provided with a connecting frame (11). The screw sleeve (14) is threadedly connected with a screw rod (10). The bottom end of the screw rod (10) is rotatably connected to the connecting frame (11). The conveying support (5) is also provided with guide rods (12) on both sides. The conveying device (1) is also provided with a guide rod sleeve (13) on the side. The guide rod (12) passes through the guide rod (12).

5. The deformed cigarette bar detection and rejection device according to claim 1, characterized in that: The conveying direction of the conveyor belt (6) forms an angle α with the conveying direction of the conveying device (1), and the angle α is 120°-135°.

6. The deformed cigarette bar detection and rejection device according to claim 1, characterized in that: The conveying support (5) includes a side plate (51), an upper support plate (52), an end roller (53), and a lower support plate (55). The upper support plate (52) is fixedly arranged between the two side plates (51). At least two springs (54) are arranged on the bottom surface of the upper support plate (52). The bottom end of the springs (54) is connected to the lower support plate (55). The end rollers (53) are rotatably arranged at both ends of the side plate (51). One of the end rollers (53) is connected to the motor (9). The conveyor belt (6) is wound around the two end rollers (53) and the inner side of the conveyor belt (6) is in contact with the upper support plate (52) and the lower support plate (55).

7. The deformed cigarette pack detection and rejection device according to claim 6, characterized in that: A double-sided tape roll mounting roller (8) is provided at one end of the side plate (51).