Carton sealing tape pasting detection device and cigarette box packaging equipment

Abstract

The utility model belongs to the technical field of cigarette packaging equipment, and particularly relates to a box sealing tape pasting detection device and cigarette box packaging equipment, the box sealing tape pasting detection device comprises a machine core main body and a plurality of guide rollers installed in the machine core main body according to a specified arrangement mode, a disc is installed on the machine core main body, and the disc is used for loading a box sealing tape coil; a negative pressure plate is installed in the side, away from the disc, of the machine core body. A front pressing roller and a rear pressing roller are installed at the front end and the rear end, on the same side as the negative pressure plate, of the machine core body. And the head end of a carton sealing belt of the carton sealing belt coil bypasses the plurality of guide rollers and extends to the front pressing roller. The aims are that a box sealing belt is additionally arranged at an outlet of a smoke box for detection, and the existence condition of the box sealing belt of the smoke box is monitored; the in-place condition of the box sealing belt at the front pressing roller is monitored through the arranged first detection piece, and the possibility that the box sealing belt of the cigarette box is lost is reduced; the structure is simple and practicability is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of cigarette packaging equipment, specifically relating to a sealing tape pasting detection device and cigarette box packaging equipment. Background Technology

[0002] The YP19 carton sealing machine is a mainstream carton sealing machine for cigarette factories. It seals and packages cigarette cartons using sealing tape. A sealing tape applicator is installed at the machine's exit. This applicator is identical on both sides of the cigarette cartons exiting the machine and applies sealing tape to the sealing edges. During the tape application process, the applicator drives the sealing tape roll in a circular motion. The sealing tape roll is fixed on a circularly rotating disc, which unwinds the sealing tape.

[0003] The existing sealing tape detection method involves placing proximity switches at a certain position on the edge of the sealing tape disc and at a cutout position near the center of the disc. When the sealing tape moves the disc, the pulse signal generated by the proximity switch at the edge is input to the PLC controller. If this pulse signal is detected at a specific position on the disc, the PLC controller considers the sealing tape supply to be correct; otherwise, it outputs a red message "Front / Rear Tape Broken" and stops the machine. Similarly, when the sealing tape roll is smaller than the cutout position near the center of the disc, a detection pulse generated by a capacitive proximity switch is input to the PLC. When this signal is detected at a specific position, the PLC outputs a red message "Front / Rear Tape Insufficient," without stopping the machine. As can be seen, these two detection methods only monitor for broken or insufficient sealing tape, lacking monitoring of the presence or absence of sealing tape afterward, and therefore need improvement. Utility Model Content

[0004] The purpose of this invention is to provide a sealing tape pasting detection device and a cigarette box packaging equipment. By setting a photoelectric switch, the device monitors the presence of the sealing tape after the cigarette box passes through the sealing tape pasting device. It also monitors the position of the sealing tape at the pressure roller. If the sealing tape is not in place, it outputs a feedback signal to prevent the cigarette box sealing tape from being missing, thereby solving the problem of effective monitoring of the absence of sealing tape in the existing technology.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, a sealing tape pasting detection device includes a main body and a plurality of guide rollers arranged in a specified manner within the main body. A disc is mounted on the main body for loading a roll of sealing tape. A negative pressure plate is installed inside the main body on the side away from the disc. A front pressing roller and a rear pressing roller are mounted on the front and rear ends of the main body on the same side as the negative pressure plate. The leading end of the sealing tape roll extends past the plurality of guide rollers to the front pressing roller. The negative pressure plate is used to adsorb, fix, and release the sealing tape passing nearby. A first detection element is mounted on the main body for detecting the positioning of the sealing tape on the side of the front pressing roller and feeding back a detection signal.

[0007] In this application, for the YP19 box sealing machine, this device is added at the cigarette box outlet to monitor the presence of the sealing tape after the cigarette box passes through the device; the first detection piece is used to monitor the position of the sealing tape at the front pressing roller. If it is not in place, measures can be taken in time to reduce or eliminate the situation of missing sealing tape in the cigarette box.

[0008] Further specifying, the main body of the movement includes a movement side plate and a connecting rod, with two movement side plates arranged opposite to each other and connected and fixed by a plurality of the connecting rods.

[0009] Further, a sealing box roller is installed inside the main body of the mechanism. The sealing box belt is coupled with the sealing box roller as it passes around the guide roller and reaches the front pressing roller. The rotation of the sealing box roller causes the sealing box belt to extend toward the front pressing roller.

[0010] Furthermore, a driving component is installed on the main body of the mechanism, and the output end of the driving component is connected to the supply box belt roller for driving the supply box belt roller to rotate.

[0011] In the detection of the sealing tape position at the pressure roller, the first detection component can be used for monitoring. If it is not in place, the newly added drive component can be used to compensate for the sealing tape and make it in place; in this way, the absence of sealing tape in cigarette boxes can be reduced or eliminated.

[0012] Further specifying, the first detection element is a reflective photoelectric switch.

[0013] Further, the disc is provided with a second detection element and a third detection element. The second detection element is used to detect the breakage of the sealing tape on the disc, and the third detection element is used to detect the amount of sealing tape used on the disc.

[0014] Secondly, a cigarette box packaging equipment includes a cigarette box conveyor line and a sealing tape pasting detection device. The cigarette box conveyor line is provided with a cigarette box inlet and a cigarette box outlet. Two sealing tape pasting detection devices are installed opposite each other on both sides of the cigarette box conveyor line near the cigarette box inlet to perform sealing tape pasting and detection on the cigarette boxes to be input into the cigarette box inlet.

[0015] Furthermore, the cigarette box conveyor line is equipped with a color difference detector and a fourth detection element. The color difference detector is used to detect the sealing tape adhesion of the cigarette box, and the fourth detection element is used to trigger the operation of the color difference detector.

[0016] The utility model adopting the above technical solution has the following advantages:

[0017] In this application, this device is added at the cigarette box outlet to monitor the presence of the sealing tape after the cigarette box passes through the device; the first detection element monitors the sealing tape position at the front pressure roller, and if it is not in place, measures can be taken in time to reduce or eliminate the occurrence of missing sealing tape on the cigarette box; it can be applied to different models of automated box sealing equipment, and can be used on production lines with a high degree of automation that do not require human intervention, thereby improving the efficiency of packaging work; and the overall structure is simple, low in cost, and highly practical. Attached Figure Description

[0018] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0019] Figure 1 This is a first structural schematic diagram of an embodiment of the sealing tape adhesion detection device of this utility model;

[0020] Figure 2 This is a second structural schematic diagram of an embodiment of the sealing tape adhesion detection device of this utility model;

[0021] Figure 3 This is a side view schematic diagram of an embodiment of a packing tape pasting detection device according to the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0023] Figure 5 This is a front view schematic diagram of an embodiment of a cigarette box packaging equipment according to the present invention;

[0024] Figure 6 This is an assembly diagram of an embodiment of a cigarette box packaging device according to the present invention;

[0025] The symbols for the main components are explained below:

[0026] 1. Servo motor; 2. Reflective photoelectric switch; 3. Guide roller; 4. Front pressure roller; 5. Rear pressure roller; 6. Negative pressure plate; 7. Sealing box conveyor roller; 8. Outlet photoelectric switch; 9. Color difference detector; 10. Inlet photoelectric switch; 11. Sealing box conveyor; 12. Cigarette box conveyor line; 13. Cigarette box; 14. Cutter; 15. Connecting rod; 16. Eccentric wheel. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention. Example 1

[0028] like Figures 1-4 As shown in the figure, a sealing tape pasting detection device according to an embodiment of the present invention is used to detect sealing tape. It includes a core body and a plurality of guide rollers 3 installed in the core body in a specified arrangement. The core body includes a core side plate and connecting rods. Two core side plates are arranged opposite each other and connected and fixed by a plurality of connecting rods. Specifically, two connecting rods can be selected, or more than three can be set according to the structural strength required by the actual design. A disc is installed on the core body for loading the sealing tape roll 11. A negative pressure plate 6 is installed inside the core body on the side away from the disc. The negative pressure plate 6 is connected to a negative pressure pipe, and the negative pressure pipe is connected to an air pump. The air pump draws air to generate negative pressure on the negative pressure plate. A negative pressure control solenoid valve is provided on the negative pressure pipe to realize the on-off control of the negative pressure pipe. The main body of the mechanism is equipped with front and rear clamping rollers 4 and 5 on the same side as the negative pressure plate 6. The first end of the sealing tape roll 11 extends past several guide rollers 3 to the front clamping roller 4. In this way, the first end of the sealing tape can be pasted to the position to be sealed in the cigarette box after the cigarette box moves. Furthermore, the cigarette box 13 (see reference) Figure 5The movement of the machine can pull the sealing tape roll 11 to unwind the sealing tape, achieving complete sealing. The negative pressure plate 6 is used to adsorb, fix, and release the sealing tape passing near it. That is, it generates negative pressure to adsorb and fix the sealing tape, and releases the sealing tape when the negative pressure disappears. This action mainly occurs in the middle time period of continuous transmission between the front and rear cigarette boxes. The main body of the machine is equipped with a first detection element, which can be a reflective photoelectric switch 2. The reflective photoelectric switch 2 is used to detect the position of the sealing tape on the side of the front pressure roller 4 and to provide feedback detection signals. The device in this embodiment can be applied to the YP19 box sealing machine. This device is added at the cigarette box outlet to monitor the presence of the sealing tape after the cigarette box 13 passes through this device. The position of the sealing tape at the front pressure roller 4 is monitored by the reflective photoelectric switch 2. If it is not in place, measures can be taken in time to reduce or eliminate the occurrence of missing sealing tape in the cigarette box.

[0029] For example, the arrangement of several guide rollers can be referred to Figure 4 The sealing tape first passes clockwise around the first guide roller, then counterclockwise around the second guide roller, then clockwise around the third guide roller, and counterclockwise around the fourth guide roller. It then passes between the fourth guide roller and the supply sealing tape roller 7, and extends over the upper side of the negative pressure plate 6 to the vicinity of the front pressing roller 4, exceeding one end of the front pressing roller 4. It should be noted that the fourth guide roller can be a rubber roller with an internal cavity. This cavity is connected to an air supply pipe, and a roller drive solenoid valve is installed on the air supply pipe. By controlling the roller drive solenoid valve, gas is introduced into the cavity, causing the fourth guide roller to expand and press the sealing tape tightly onto the supply sealing tape roller 7.

[0030] For example, the front clamping roller 4 is connected to the inner wall of the movement side plate via a "7"-shaped front connecting plate, thus giving the front clamping roller 4 the freedom to press down and lift up. One end of the corner connecting rod 15 of the front connecting plate is connected to the corner of the connecting rod 15, and an eccentric wheel 16 is mounted in the middle of the connecting rod 15. This eccentric wheel 16 abuts against an intermediate shaft between the eccentric wheel 16 and the inner wall of the movement side plate. The rear clamping roller 5 is rotatably mounted at the bottom of the "7"-shaped rear connecting plate, with the top of the rear connecting plate connected to the inner wall of the movement side plate. The other end of the connecting rod 15 is connected to the corner of the rear connecting plate. Thus, when the front clamping roller 4 presses down, the rear clamping roller 5 lifts up, and vice versa. A blade side plate is provided inside the movement side body, and a cutter 14 is mounted on the blade side plate via a fixing plate. The cutting edge of the cutter 14 faces the outer side of the movement side body. When the front clamping roller 4 lifts up, the sealing tape approaches the cutter and is cut off.

[0031] For example, with Figure 4For example, the blade side plate is inclined, and the cutter 14 is located in the upper position between the front pressure roller 4 and the rear pressure roller 5. A spring is connected between the front connecting plate and the inner wall of the mechanism side plate. The spring keeps the front pressure roller 4 pressing downward, improving the stability of the sealing tape. Similarly, the rear pressure roller 5 can also be set in this way.

[0032] In this embodiment, a sealing belt roller 7 is installed inside the main body of the mechanism. The sealing belt is coupled with the sealing belt roller 7 as it passes around the guide roller 3 and reaches the front pressing roller 4. The rotation of the sealing belt roller drives the sealing belt to extend forward to the pressing roller. A driving component is installed on the main body of the mechanism. The output end of the driving component is connected to the sealing belt roller for driving its rotation. The driving component can be a servo motor, which is mounted on the side plate of the mechanism. The output shaft of the servo motor passes through the side plate and is inserted into the sealing belt roller. Specifically, the insertion can be achieved by a key connection.

[0033] For example, the coupling of the sealing tape with the sealing tape supply roller 7 includes being pushed into contact with the sealing tape supply roller 7 by the fourth guide roller, and after contact, being driven to continue extending by the rotation of the sealing tape supply roller 7; and separating from the sealing tape supply roller 7.

[0034] like Figure 5 As shown, during the conveying of cigarette boxes via the cigarette box conveyor line 12, sealing tape is adhered to the cigarette box 13 at the cigarette box inlet. As the cigarette box 13 moves forward, the sealing tape is unwound. Then, the cigarette box 13 first contacts the front pressing roller 4, which presses the sealing tape. Next, the cigarette box 13 contacts the rear pressing roller 5, and the sealing tape is cut by the cutter 14 via the front pressing rollers 4 on both sides. The rear pressing roller 5 then presses the cut sealing tape, achieving complete sealing of the cigarette box. However, there is a possibility that the sealing tape may not be properly adhered to the cigarette box 13. To detect the proper placement of the sealing tape at the front pressing roller 4, a first detection element, namely a reflective photoelectric switch 2, can be used. If it is not properly positioned, a newly added driving element can compensate for the sealing tape to ensure it is in place. This reduces or eliminates the possibility of missing sealing tape in the cigarette box 13.

[0035] In practice, the sealing tape at the front clamping roller 4 is not in place and fails to hold down when the roller presses down, causing the sealing tape to not feed with the cigarette box 13 during the sealing process. Alternatively, although the sealing tape feeds with the cigarette box 13, incorrect application results in missing tape or incorrect placement. This embodiment solves these problems by using a reflective photoelectric switch 2 to monitor the presence of the sealing tape after the cigarette box passes through the device, thus preventing missing sealing tape on the cigarette box 13.

[0036] In this embodiment, a second detection element and a third detection element are provided on the disc. The second detection element is used to detect the breakage of the sealing tape on the disc, and the third detection element is used to detect the amount of sealing tape used on the disc.

[0037] For example, the edge of the disk and the area near the center of the disk are hollowed out. An inductive proximity switch is installed below the edge of the disk to form the second detection element; a capacitive proximity switch is installed in the hollowed-out area near the center to form the third detection element.

[0038] When the sealing tape drives the disc, an inductive proximity switch generates a pulse signal that is input to the PLC controller. If this pulse signal is detected at a certain cutout position, the PLC controller considers the sealing tape supply to be correct; otherwise, it outputs a red message "Front / Rear Tape Broken" and stops the machine. Similarly, when the sealing tape roll is smaller than the cutout position near the center of the disc, a capacitive proximity switch generates a detection pulse that is input to the PLC controller. When this signal is detected at a certain central cutout position, the PLC controller outputs a red message "Front / Rear Tape Insufficient, No Stopping."

[0039] In the sealing tape pasting detection device described above, the devices in this embodiment are arranged in pairs, and the distance between the two devices is adjustable. Furthermore, the disc-loaded sealing tape roll 11 can be replaced with sealing tape of different specifications. This sealing tape pasting detection device can be applied to different models of carton sealing machines, and can also be applied to production lines with a high degree of automation that require no human intervention; it enables the sealing of objects; during the sealing process, the first detection element detects the position of the sealing tape at the front pressure roller 4. If the detection result indicates that the sealing tape is not in place, measures can be taken in time to reduce or eliminate the occurrence of missing sealing tape on the cigarette box. Example 2

[0040] like Figure 5 , Figure 6 As shown in this embodiment, a cigarette box packaging device includes a cigarette box conveyor line 12 and a sealing tape pasting detection device. The cigarette box conveyor line is provided with a cigarette box inlet and a cigarette box outlet. Two sealing tape pasting detection devices are installed opposite each other on both sides of the cigarette box conveyor line near the cigarette box inlet to perform sealing tape pasting and detection on the cigarette boxes to be input into the cigarette box inlet.

[0041] In this embodiment, a color difference detector 9 and a fourth detection element are provided on the cigarette box conveyor line 12. The color difference detector 9 is used to detect the sealing tape pasting status of the cigarette box 13, and the fourth detection element is used to trigger the operation of the color difference detector 9.

[0042] For example, the fourth detection element includes an inlet photoelectric switch 10 and an outlet photoelectric switch 8. The inlet photoelectric switch 10 is located on one side of the smoke box inlet, and the outlet photoelectric switch 8 is located on the one side of the smoke box outlet. The inlet photoelectric switch 10 and the outlet photoelectric switch 8 are electrically connected to a PLC controller. The PLC controller can receive feedback signals from the inlet photoelectric switch 10 and the outlet photoelectric switch 8 and control the operation of the color difference detector 9. For example, when the outlet photoelectric switch 8 detects smoke box 13, it indicates that smoke box 13 is in place, and the timer T1 of the PLC controller starts counting. After the smoke box passes through, the synchronization signal disappears, and the timer T1 ends. At the same time, the color difference detector 9 detects the sealing tape, and the timer T2 of the PLC controller starts counting. After the smoke box passes through, the timer T2 ends. The PLC controller compares the two time values: T2 / T1. If the comparison result is less than 95%, it is considered that the sealing tape is broken or incomplete, and an alarm signal is output to the audible and visual alarm, and a stop signal is output to the packing and sealing machine. The alarm signal and the stop signal can only be cleared after the operator checks the equipment, troubleshoots the problem, and presses the reset button. If the comparison result is greater than or equal to 95%, the sealing tape is considered normal.

[0043] When the cigarette box 13 enters the sealing tape pasting detection device, the front pressing roller 4, under the action of the spring, presses the sealing tape onto the cigarette box seal. As the cigarette box 13 advances, the sealing tape continues to be pasted onto the cigarette box seal. When the cigarette box passes the rear pressing roller 5, the sealing tape is cut off, and the end of the sealing tape is pressed down slightly by the rear pressing roller 5. When the inlet photoelectric switch 10 has a signal, the PLC controller controls the negative pressure control solenoid valve to de-energize, shutting off the negative pressure of the negative pressure plate 6. After the cigarette box 13 has passed, the signal of the inlet photoelectric switch 10 disappears, the falling edge signal triggers, the PLC controller controls the negative pressure control solenoid valve to energize, controlling the negative pressure plate 6 to generate negative pressure, adsorbing the sealing tape onto the negative pressure plate 6. Meanwhile, the PLC controller monitors the signal of the reflective photoelectric switch 2. If there is no signal, the PLC controller de-energizes the negative pressure control solenoid valve, shuts off the negative pressure on the negative pressure plate 6, controls the roller drive solenoid valve to press the sealing tape onto the sealing tape supply roller 7, and then starts the servo motor 1 to convey the sealing tape forward until the reflective photoelectric switch 2 detects the sealing tape. If the servo motor 1 still cannot detect the sealing tape after working for 3 seconds, the PLC controller outputs an alarm signal and a stop signal. After confirming that everything is normal, press the reset button to start the equipment.

[0044] This structural design allows for the addition of a sealing tape detection device at the cigarette box outlet of the YP19 carton sealing machine. This device monitors the presence of the sealing tape on the cigarette box 13 after it passes through the machine. The first detection element monitors the sealing tape's position at the front pressure roller 4. If the sealing tape is found to be in place, timely measures can be taken to reduce or eliminate missing sealing tape on the cigarette box. This device is applicable to different models of automated carton sealing equipment and can be used on highly automated production lines that require no human intervention, thus improving packaging efficiency. Furthermore, the overall structure is simple, low-cost, and highly practical.

[0045] The above provides a detailed description of the sealing tape adhesion detection device provided by this utility model. The specific embodiments are described only to help understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A sealing tape pasting detection device, comprising a main body and a plurality of guide rollers (3) arranged in a specified manner within the main body, wherein a disc is mounted on the main body for loading a roll of sealing tape (11); characterized in that, A negative pressure plate (6) is installed inside the main body of the mechanism on the side away from the disc. A front pressing roller (4) and a rear pressing roller (5) are installed on the front and rear ends of the main body of the mechanism and the negative pressure plate (6) on the same side. The first end of the sealing tape roll (11) extends to the front pressing roller (4) after passing around several guide rollers (3). The negative pressure plate (6) is used to adsorb, fix and release the sealing tape passing near it. A first detection element is installed on the main body of the mechanism. The first detection element is used to detect the position of the sealing tape on the side of the front pressing roller (4) and to feed back the detection signal.

2. The sealing tape adhesion detection device according to claim 1, characterized in that: The main body of the movement includes a movement side plate and a connecting rod. The two movement side plates are arranged opposite to each other and are connected and fixed by a plurality of the connecting rods.

3. A sealing tape adhesion detection device according to claim 1 or 2, characterized in that: The main body of the mechanism is equipped with a sealing box roller (7). The sealing box is coupled with the sealing box roller (7) on its way to the front pressing roller (4) after passing around the guide roller (3). The rotation of the sealing box roller (7) drives the sealing box to extend towards the front pressing roller (4).

4. The sealing tape adhesion detection device according to claim 3, characterized in that: The main body of the mechanism is equipped with a driving component, the output end of which is connected to the sealing box roller (7) for driving the sealing box roller (7) to rotate.

5. The sealing tape adhesion detection device according to claim 1, characterized in that: The first detection device is a reflective photoelectric switch (2).

6. The sealing tape adhesion detection device according to claim 1, characterized in that: The disc is equipped with a second detection element and a third detection element. The second detection element is used to detect the breakage of the sealing tape on the disc, and the third detection element is used to detect the amount of sealing tape used on the disc.

7. A cigarette box packaging equipment, characterized in that: The device includes a cigarette box conveyor line (12) and a sealing tape pasting detection device as described in any one of claims 1-6. The cigarette box conveyor line (12) is provided with a cigarette box inlet and a cigarette box outlet. Two sealing tape pasting detection devices are installed opposite each other on both sides of the cigarette box conveyor line (12) near the cigarette box inlet to perform sealing tape pasting and detection on the cigarette boxes to be entered into the cigarette box inlet.

8. The cigarette box packaging equipment according to claim 7, characterized in that: The cigarette box conveyor line (12) is equipped with a color difference detector (9) and a fourth detection element. The color difference detector (9) is used to detect the sealing tape pasting status of the cigarette box, and the fourth detection element is used to trigger the operation of the color difference detector (9).

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