A packaging machine conveyor with empty box detection

Abstract

This utility model discloses a packaging machine conveying device with empty box detection, including a conveyor housing. A rotary assembly is disposed within the conveyor housing, and multiple molds are mounted on the rotary assembly, allowing the molds to rotate. Guide plates are disposed on both inner sides of the conveyor housing, and these guide plates are movable along the width of the conveyor housing, with a gap between the two guide plates matching the length of the cigarette. An optical fiber sensor is disposed at the upper edge of each guide plate. The purpose of this utility model is to provide a packaging machine conveying device with empty box detection, which is expected to be suitable for detecting both ends of cigarettes of different lengths and specifications, and to prevent signal fluctuations during detection, thereby improving detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of cigarette transportation technology, specifically to a packaging machine conveying device with empty box detection. Background Technology

[0002] The YB45 hard box packaging machine needs to inspect the conveyed molds during the production process to detect whether there are cigarettes in the molds. In the existing technology, fiber optic sensors are usually set on one side of the conveying device to detect the filter part or tobacco part in the mold. However, due to the influence of the gap between the hollow filter rod and the cigarette, it is not possible to accurately detect whether there are cigarettes. Often, a normal cigarette is detected as no cigarette when it reaches the detection point.

[0003] In our company's previously filed utility model patent, CN114735267A, entitled "Foreign Object Detection Device for Empty Mold Box," two infrared laser diffuse reflection photoelectric switches were installed at a preset interval on the cover plate above the track baffle. The probes of the infrared laser diffuse reflection photoelectric switches faced the inside of the mold box, and a preset gap was formed between the probes of the infrared laser diffuse reflection photoelectric switches and the mold box. The two infrared laser diffuse reflection photoelectric switches improved the detection accuracy, but they also had the following drawbacks: With the continuous development of cigarette products, the shape of cigarettes has become more diverse, which can be roughly divided into thin, medium, and short cigarettes. Since the infrared laser diffuse reflection photoelectric switches are determined by the preset interval, they cannot be adjusted according to the length and model of the cigarettes. In addition, the cigarettes are not regular in the mold box, and some cigarettes may have their front or rear ends protruding, resulting in only one infrared laser diffuse reflection photoelectric switch being able to detect the signal, which may also lead to inaccurate detection.

[0004] To address the above deficiencies, this utility model provides a packaging machine conveying device with empty box detection. Utility Model Content

[0005] The purpose of this invention is to provide a packaging machine conveying device with empty box detection, which is expected to be suitable for detecting both ends of cigarettes of different lengths and specifications, and to prevent signal fluctuations during the detection process, thereby improving detection accuracy.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A packaging machine conveying device with empty box detection includes a conveyor housing, in which a rotary assembly is provided, and multiple molds are provided on the rotary assembly so that the molds can rotate. Smoke guide plates are provided on the two inner sides of the conveyor housing. The smoke guide plates can move along the width direction of the conveyor housing, and a gap matching the length of the cigarette is formed between the two smoke guide plates. An optical fiber sensor is provided at the upper edge of the smoke guide plate.

[0008] Furthermore, the two ends of the smoke guide plate are curved or inclined, so that the gap between the two smoke guide plates forms a flared opening at both ends.

[0009] Furthermore, the rotary assembly includes sprockets, chains, and servo motors. There are two sprockets rotatably mounted in the conveyor housing. One of the sprockets is connected to the servo motor. A chain is wound around the two sprockets, and the molds are spaced apart on the chain.

[0010] Furthermore, the two inner sidewalls of the conveyor housing are also provided with horizontal plates, the two ends of which are bent downward to form transition slopes, and the two ends of the mold box are located on the horizontal plates.

[0011] Furthermore, a screw and a guide rod are provided on the back of the smoke guide plate, both of which penetrate the side wall of the conveyor housing. The end of the screw is rotatably connected to the back of the smoke guide plate, and the screw is threadedly connected to the side wall of the conveyor housing.

[0012] Furthermore, the fiber optic sensor is electrically connected to the fiber optic sensor amplifier.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features smoke guide plates on both sides of the conveyor housing. The gap between the two smoke guide plates can be adjusted by rotating a screw, thereby aligning the cigarette ends to accommodate the detection of cigarettes of different lengths. Because the smoke guide plates align the cigarette ends, they prevent stretching or contraction, and the two fiber optic sensors can accurately detect both ends of the cigarette, thus improving detection accuracy. Furthermore, a horizontal plate is also provided on the conveyor housing, with both ends of the mold box located on the horizontal plate. This horizontal plate supports the mold box, preventing it from swaying during transport and causing the cigarettes to become irregular. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the mold box connection.

[0017] In the diagram, 1-conveyor housing, 2-horizontal plate, 3-smoke guide plate, 4-guide rod, 5-screw, 6-fiber optic sensor, 7-chain, 8-fiber optic sensor amplifier, 9-servo motor, 10-mold box, 11-sprocket. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Please see Figure 1-2 This utility model provides a packaging machine conveying device with empty box detection, including a conveyor housing 1. A rotary assembly is installed in the conveyor housing 1, and multiple molds 10 are mounted on the rotary assembly, allowing the molds 10 to rotate. Smoke guide plates 3 are provided on both inner sides of the conveyor housing 1, perpendicular to the bottom surface. The smoke guide plates 3 can move along the width direction of the conveyor housing 1, and a gap matching the length of the cigarette is formed between the two smoke guide plates 3. Since the two smoke guide plates 3 can move along the width direction of the conveyor housing 1, this gap can be adjusted to suit the straightening operation of cigarettes of different lengths. An optical fiber sensor 6 is installed at the upper edge of the smoke guide plate 3. Two optical fiber sensors 6 are positioned correspondingly, one in front of the other. The optical fiber sensor 6 is electrically connected to an optical fiber amplifier 8. Furthermore, the optical fiber amplifier 8 can be connected to the actuator of the packaging machine, such as a rejection mechanism. This invention does not limit this connection. During detection, if neither optical fiber sensor 6 provides a high-level signal, it indicates that there is no cigarette in the mold box 10. If both optical fiber sensors 6 provide a high-level signal, it indicates that a cigarette is present in the mold box 10. If the signals from the two optical fiber sensors 6 are not synchronized, it indicates an abnormal cigarette condition, possibly due to a broken cigarette.

[0022] In this invention, the cigarette is aligned at both ends by the cigarette guide plate 3 during the conveying process, so that the two fiber optic sensors 6 can detect the two ends of the cigarette. If the ends of the cigarette are not aligned, the ends of the cigarette may be extended or retracted. In this case, only one of the two fiber optic sensors 6 can detect the signal, which will cause the signal to fluctuate and thus cause false detection.

[0023] In order to smoothly align the two ends of the cigarette, the two ends of the smoke guide plate 3 are curved or inclined, so that the gap between the two smoke guide plates 3 forms a flared mouth at both ends. The flared mouth allows the protruding end of the cigarette to be gradually aligned, preventing the cigarette from breaking.

[0024] In some embodiments, the rotary assembly includes sprockets 11, chains 7, and servo motors 9. There are two sprockets 11 rotatably disposed in the conveyor housing 1. One of the sprockets 11 is connected to the servo motor 9. The chains 7 are wound around the two sprockets 11. The molds 10 are spaced apart on the chains 7. Preferably, the molds 10 and the chains 7 are detachably connected.

[0025] The two inner side walls of the conveyor housing 1 are also provided with horizontal plates 2. The two ends of the horizontal plates 2 are bent downward to form transition slopes 21, so as to gradually guide the mold box 10. The two ends of the mold box 10 are located on the horizontal plates 2. The horizontal plates 2 support the mold box 10 to prevent the mold box 10 from shaking and causing the cigarettes to become irregular.

[0026] In order to enable the two smoke guide plates 3 to move along the width direction of the conveyor housing 1, in some embodiments, a screw 5 and a guide rod 4 are provided on the back of the smoke guide plate 3. The screw 5 is located in the middle of the smoke guide plate 3, and the guide rod 4 is located on both sides of the smoke guide plate 3. Both the screw 5 and the guide rod 4 penetrate through the side wall of the conveyor housing 1. The end of the screw 5 is rotatably connected to the back of the smoke guide plate 3, and the screw 5 is threadedly connected to the side wall of the conveyor housing 1, so that the movement and adjustment of the smoke guide plate 3 can be achieved by rotating the screw 5.

[0027] 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 packaging machine conveying device with empty box detection, comprising a conveyor housing (1), characterized in that, The conveyor housing (1) is provided with a rotary assembly, and multiple molds (10) are provided on the rotary assembly so that the molds (10) can rotate. The two inner sides of the conveyor housing (1) are provided with smoke guide plates (3). The smoke guide plates (3) can move along the width direction of the conveyor housing (1), and a gap matching the length of the cigarette is formed between the two smoke guide plates (3). An optical fiber sensor (6) is provided at the upper edge of the smoke guide plate (3).

2. The packaging machine conveying device with empty box detection according to claim 1, characterized in that: The two ends of the smoke guide plate (3) are curved or inclined, so that the gap between the two smoke guide plates (3) forms a flared opening at both ends.

3. The packaging machine conveying device with empty box detection according to claim 1, characterized in that: The rotary assembly includes sprockets (11), chains (7) and servo motors (9). There are two sprockets (11) rotatably disposed in the conveyor housing (1). One of the sprockets (11) is connected to the servo motor (9). The chains (7) are wound around the two sprockets (11). The molds (10) are spaced apart on the chains (7).

4. A packaging machine conveying device with empty box detection according to claim 1, characterized in that: The conveyor housing (1) is also provided with two inner side walls with a horizontal plate (2), the two ends of the horizontal plate (2) are bent downward to form a transition slope (21), and the two ends of the mold box (10) are located on the horizontal plate (2).

5. A packaging machine conveying device with empty box detection according to claim 1, characterized in that: The back of the smoke guide plate (3) is provided with a screw (5) and a guide rod (4). Both the screw (5) and the guide rod (4) penetrate the side wall of the conveyor housing (1). The end of the screw (5) is rotatably connected to the back of the smoke guide plate (3) and the screw (5) is threadedly connected to the side wall of the conveyor housing (1).

6. A packaging machine conveying device with empty box detection according to claim 1, characterized in that: The fiber optic sensor (6) is electrically connected to the fiber optic amplifier (8).

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