Packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust

Abstract

The invention relates to a packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust, and belongs to the technical field of packaging detection. Comprising a machine base, a conveying belt rotationally installed in the machine base, a thermal infrared detection device, a photoelectric control intelligent exhaust device and a double-shaft motor, wherein the thermal infrared detection device and the photoelectric control intelligent exhaust device are fixedly installed outside the machine base; a temperature stability control mechanism used for ensuring that the thermal infrared detection device accurately obtains temperature data of the sealing part is arranged outside the thermal infrared detection device, and a cleaning mechanism used for cleaning dust outside the packaging bag is arranged on the upper surface of the conveying belt. According to the packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust, through intermittent opening and closing of the heat insulation plate, the influence of external environment temperature fluctuation on the temperature in the detection shell can be effectively reduced, the detection precision is improved, and the advantage that the heat seal detection accuracy is high is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging detection, and in particular to a packaging machine based on thermal infrared heat sealing detection and photoelectrically controlled intelligent exhaust. Background Art

[0002] The quality of heat seals on packaging bags is crucial in industries like food. However, in actual manufacturing, there is a lack of efficient, reliable, and easy-to-implement detection devices. Traditional heat seal detection methods rely on manual visual inspection or simple mechanical testing, which is not only inefficient but also difficult to ensure detection accuracy. With the development of automation and intelligent technology, thermal infrared detection and photoelectric control technologies are gradually being applied to packaging machines.

[0003] The existing thermal infrared detection technology still has many problems in its application process. The existing thermal infrared detection is easily affected by heat sources, airflow and dust in the workshop, resulting in temperature measurement errors and misjudgment of sealing quality. It cannot adapt to the dynamic detection needs of high-speed production lines and it is difficult to completely isolate external dust. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust, which has the advantages of high accuracy in heat seal detection. It solves the problem that the existing thermal infrared detection is easily affected by workshop heat sources, airflow and dust, resulting in temperature measurement errors and misjudgment of sealing quality, and is unable to adapt to the dynamic detection needs of high-speed production lines, and is difficult to completely isolate external dust.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a packaging machine based on thermal infrared heat seal detection and photoelectrically controlled intelligent exhaust, comprising a machine base, a conveyor belt rotatably mounted inside the machine base, a thermal infrared detection device and a photoelectrically controlled intelligent exhaust device fixedly mounted outside the machine base, and a dual-axis motor fixedly mounted outside the machine base for driving the conveyor belt; a temperature stabilization control mechanism is provided on the outside of the thermal infrared detection device for ensuring that the thermal infrared detection device accurately obtains temperature data of the sealing portion; and a cleaning mechanism is provided on the upper surface of the conveyor belt for cleaning dust on the outside of the packaging bag; The thermal infrared detection device includes a detection shell, an infrared temperature measurement module, a data processing module, a signal processing module and an MQTT module; The temperature stabilization control mechanism includes two heat insulation plates slidably connected to the outside of the detection housing, a connecting frame fixedly connected to the outside of the two heat insulation plates, a fixed plate fixedly connected to the left side of the connecting frame, a pulley rotatably mounted on the outside of the fixed plate, a moving block provided on the outside of the pulley, and a driving mechanism provided on the outside of the moving block for driving the two heat insulation plates to move back and forth up and down; The cleaning mechanism includes a mounting bracket arranged on the upper surface of the conveyor belt, a collecting box fixedly mounted on the top of the mounting bracket, a centrifugal fan rotatably mounted on the outside of the collecting box, a negative pressure dust suction seat fixedly mounted on the outside of the mounting bracket, a cleaning brush fixedly connected to the bottom of the negative pressure dust suction seat, a connecting pipe fixedly connected between the negative pressure dust suction seat and the collecting box, and a synchronization structure arranged on the outside of the mounting bracket for driving the mounting bracket to move back and forth.

[0006] Furthermore, the driving mechanism includes a rocker fixedly mounted on the left end output shaft of the dual-axis motor, a connecting rod rotatably connected to the outside of the rocker, a pin rotatably connected to one end of the connecting rod away from the rocker, and a slide groove opened inside the moving block.

[0007] Furthermore, the pulley is slidably connected to the slide groove, the outer diameter of the pulley is slidably connected to the slide groove, the pin shaft is fixedly connected to the outside of the moving block, a transmission rod is fixedly installed inside the moving block, and the moving block is slidably connected to the outside of the machine base through a connecting rod.

[0008] Furthermore, a movable opening adapted to the packaging bag is provided inside the detection shell, the heat insulation plate is slidably connected to the outside of the movable opening, and the outer diameter of the heat insulation plate is adapted to the inner diameter of the movable opening.

[0009] Furthermore, the outside of the detection shell is fixedly connected to a limit rod, the outside of the insulation board is fixedly connected to a connecting ear, the inside of the connecting ear is provided with a limit hole adapted to the limit rod, and the insulation board is slidably connected to the outside of the limit rod through the connecting ear.

[0010] Furthermore, the synchronization structure includes a driving seat fixedly connected to one end of the transmission rod and a limit seat arranged on the outside of the transmission rod. The driving seat is fixedly connected to the outside of the transmission rod through a mounting sleeve. There are two limit seats, and both limit seats are fixedly connected to the outside of the machine base. The transmission rod is slidably connected to the inside of the two limit seats, and the driving seat is fixedly connected to the outside of the mounting frame.

[0011] Furthermore, a dust suction hole is provided at the bottom of the negative pressure dust suction seat, and a one-way valve is fixedly installed between the connecting pipe and the collection box.

[0012] Furthermore, the cleaning brush is located on the upper surface of the conveyor belt, the cleaning brush is in contact with the upper surface of the packaging bag, and the brushing time of the cleaning brush matches the rhythm of the conveyor belt.

[0013] Furthermore, a collection frame is slidably connected to the interior of the collection box, and a taking opening adapted to the collection frame is provided inside the collection box.

[0014] Furthermore, a guide rod is fixedly connected to the top of the machine base, a slider adapted to the guide rod is fixedly installed on the outside of the mounting frame, and the slider is slidably connected to the outside of the guide rod.

[0015] Compared with the existing technology, the present invention provides a packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust, which has the following beneficial effects: 1. This packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust is started by a dual-axis motor. The output shaft at the left end drives the rocker to rotate, so that the moving block will drive the heat insulation plate to move up and down at the moving opening outside the detection shell under the action of the connecting rod. The intermittent opening and closing of the heat insulation plate can effectively reduce the impact of external environmental temperature fluctuations on the temperature inside the detection shell, so that the thermal infrared detection module can perform detection in a stable temperature environment, improve the detection accuracy, and achieve the advantage of high accuracy of heat seal detection.

[0016] 2. This packaging machine, which is based on thermal infrared heat seal detection and photoelectric control intelligent exhaust, is driven by a transmission rod and a synchronous structure. The mounting frame can automatically move back and forth, reducing manual intervention and allowing the cleaning brush to cover a larger area on the conveyor belt. At the same time, the vacuuming effect of the negative pressure dust suction seat can promptly suck the cleaned dust, impurities, etc. into the collection box, greatly improving the cleaning efficiency. The cleaning brush matches the rhythm of the conveyor belt, ensuring that each packaging bag can be cleaned promptly and effectively, ensuring the cleanliness of the detection area and the reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural perspective diagram of a packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to the present invention; Figure 2 This is a cross-sectional perspective view of the structure of a thermal infrared detection device for a packaging machine based on thermal infrared heat sealing detection and photoelectrically controlled intelligent exhaust according to the present invention; Figure 3 This is a structural stereogram of a temperature stabilization control mechanism and a cleaning mechanism of a packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to the present invention; Figure 4 This is a structural perspective diagram of a heat insulation board of a packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to the present invention; Figure 5 This is a structural stereogram of a cleaning mechanism of a packaging machine based on thermal infrared heat sealing detection and photoelectric controlled intelligent exhaust according to the present invention; Figure 6 A flowchart of a system startup of a thermal infrared detection device for a packaging machine based on thermal infrared heat sealing detection and photoelectrically controlled intelligent exhaust according to the present invention; Figure 7 This is a flow chart of the signal processing layer of a thermal infrared detection device of a packaging machine based on thermal infrared heat sealing detection and photoelectrically controlled intelligent exhaust according to the present invention; Figure 8 This is a flow chart of the temperature processing of a thermal infrared detection device of a packaging machine based on thermal infrared heat sealing detection and photoelectric controlled intelligent exhaust according to the present invention.

[0018] In the figure: 1. Machine base; 2. Conveyor belt; 3. Thermal infrared detection device; 31. Detection shell; 32. Infrared temperature measurement module; 33. Data processing module; 34. Signal processing module; 35. MQTT module; 4. Dual-axis motor; 5. Photoelectric control intelligent exhaust device; 6. Temperature stabilization control mechanism; 61. Heat insulation board; 62. Connecting frame; 63. Fixed plate; 64. Pulley; 65. Rocker; 66. Connecting rod; 67. Pin; 68. Moving block; 69. Slide; 610. Transmission rod; 611. Limit seat; 612. Drive seat; 7. Connecting ear; 8. Limit rod; 9. Cleaning mechanism; 91. Mounting frame; 92. Collection box; 93. Centrifugal fan; 94. Negative pressure dust suction seat; 95. Cleaning brush; 96. Connecting pipe; 97. Slider; 98. Guide rod; 99. Collection frame. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 5 In this embodiment, a packaging machine based on thermal infrared heat seal detection and photoelectrically controlled intelligent exhaust includes a machine base 1, a conveyor belt 2 rotatably mounted inside the machine base 1, a thermal infrared detection device 3 and a photoelectrically controlled intelligent exhaust device 5 fixedly mounted outside the machine base 1, and a dual-axis motor 4 fixedly mounted outside the machine base 1 for driving the conveyor belt 2. A temperature stabilization control mechanism 6 is provided on the outside of the thermal infrared detection device 3 to ensure that the thermal infrared detection device 3 accurately obtains temperature data of the sealing portion. A cleaning mechanism 9 is provided on the upper surface of the conveyor belt 2 to clean dust on the outside of the packaging bag. The thermal infrared detection device 3 includes a detection housing 31, an infrared temperature measurement module 32, a data processing module 33, a signal processing module 34, and an MQTT module 35. It should be noted that the infrared temperature measurement module 32 is based on thermal infrared radiation measurement conversion and is used to non-contact measure the temperature of the sealing area of ​​the flexible packaging bag in a very short time and convert the temperature into an analog signal. The data processing module 33 is used to receive the analog signal, analyze the temperature data, and judge the sealing quality. The signal processing module 34 is used to receive the beat signal of the production line and issue an alarm signal if the sealing quality is unqualified. The MQTT module 35 can receive messages from the host computer through WLAN, 4G network, Ethernet, etc., configure the threshold temperature, and upload the temperature characteristic data of each seal to the host computer.

[0021] Furthermore, the photoelectrically controlled intelligent exhaust device 5 comprises a photoelectric sensor and an intelligent exhaust mechanism. The photoelectric sensor, mounted on top of the machine base 1, detects the heat-sealing status of the packaging bag. The intelligent exhaust mechanism automatically adjusts the exhaust volume based on feedback from the photoelectric sensor, ensuring that all air in the packaging bag is completely exhausted, thereby improving the heat-sealing quality.

[0022] See also Figure 1 、 Figures 3 and 4 In this embodiment, the temperature stabilization control mechanism 6 includes two heat insulation plates 61 slidably connected to the outside of the detection shell 31, a connecting frame 62 fixedly connected to the outside of the two heat insulation plates 61, a fixed plate 63 fixedly connected to the left side of the connecting frame 62, a pulley 64 rotatably mounted on the outside of the fixed plate 63, a moving block 68 arranged on the outside of the pulley 64, and a driving mechanism arranged on the outside of the moving block 68 for driving the two heat insulation plates 61 to move back and forth up and down.

[0023] Among them, the driving mechanism includes a rocker 65 fixedly installed on the output shaft at the left end of the dual-axis motor 4, a connecting rod 66 rotatably connected to the outside of the rocker 65, a pin shaft 67 rotatably connected to the end of the connecting rod 66 away from the rocker 65, and a slide groove 69 opened inside the moving block 68.

[0024] Specifically, the pulley 64 is slidably connected to the slide groove 69, the outer diameter of the pulley 64 is slidably connected to the slide groove 69, the pin shaft 67 is fixedly connected to the outside of the moving block 68, and the transmission rod 610 is fixedly installed inside the moving block 68. The moving block 68 is slidably connected to the outside of the machine base 1 through the connecting rod 66.

[0025] It should be noted that a movable opening adapted to the packaging bag is opened inside the detection shell 31 , and the heat insulation plate 61 is slidably connected to the outside of the movable opening, and the outer diameter of the heat insulation plate 61 is adapted to the inner diameter of the movable opening.

[0026] In addition, the outside of the detection shell 31 is fixedly connected to a limit rod 8, and the outside of the heat insulation plate 61 is fixedly connected to a connecting ear 7. The inside of the connecting ear 7 is provided with a limit hole adapted to the limit rod 8, and the heat insulation plate 61 is slidably connected to the outside of the limit rod 8 through the connecting ear 7.

[0027] During use, the controller activates the dual-axis motor 4, causing its left output shaft to rotate the rocker 65. This rotation of the rocker 65 drives the pin 67 via the connecting rod 66. Because the pin 67 is fixedly connected to the exterior of the moving block 68 and the pulley 64 is slidably connected to the slot 69, the moving block 68, driven by the connecting rod 66, reciprocates up and down along the exterior of the base 1.

[0028] The reciprocating up and down movement of the moving block 68 drives the heat shield 61 to reciprocate up and down at the movable opening outside the detection housing 31. When the heat shield 61 moves upward, the detection housing 31 opens, allowing outside air to exchange with the inside of the detection housing 31. When the heat shield 61 moves downward, the detection housing 31 closes, reducing the impact of the external ambient temperature on the temperature inside the detection housing 31. This allows the heat shield 61 to be intermittently opened and closed, stabilizing the temperature inside the detection housing 31.

[0029] See also Figure 1 、 Figure 3 and Figure 5 In this embodiment, the cleaning mechanism 9 includes a mounting frame 91 arranged on the upper surface of the conveyor belt 2, a collecting box 92 fixedly mounted on the top of the mounting frame 91, a centrifugal fan 93 rotatably mounted on the outside of the collecting box 92, a negative pressure dust suction seat 94 fixedly mounted on the outside of the mounting frame 91, a cleaning brush 95 fixedly connected to the bottom of the negative pressure dust suction seat 94, a connecting pipe 96 fixedly connected between the negative pressure dust suction seat 94 and the collecting box 92, and a synchronization structure arranged on the outside of the mounting frame 91 for driving the mounting frame 91 to move back and forth.

[0030] Among them, the synchronization structure includes a driving seat 612 fixedly connected to one end of the transmission rod 610 and a limiting seat 611 arranged on the outside of the transmission rod 610. The driving seat 612 is fixedly connected to the outside of the transmission rod 610 through a mounting sleeve. There are two limiting seats 611. Both limiting seats 611 are fixedly connected to the outside of the machine base 1. The transmission rod 610 is slidably connected to the inside of the two limiting seats 611. The driving seat 612 is fixedly connected to the outside of the mounting frame 91.

[0031] Specifically, a vacuum hole is provided at the bottom of the negative pressure suction base 94, and a one-way valve is fixedly installed between the connecting pipe 96 and the collection box 92. A cleaning brush 95 is located on the upper surface of the conveyor belt 2, contacting the upper surface of the packaging bag, and the brushing time of the cleaning brush 95 matches the rhythm of the conveyor belt 2.

[0032] It should be noted that a collection frame 99 is slidably connected to the interior of the collection box 92, and a retrieval opening adapted to the collection frame 99 is provided inside the collection box 92. A guide rod 98 is fixedly connected to the top of the machine base 1, and a slider 97 adapted to the guide rod 98 is fixedly mounted on the outside of the mounting frame 91, and the slider 97 is slidably connected to the outside of the guide rod 98.

[0033] During operation of this embodiment, the transmission rod 610 reciprocates during operation of the temperature stabilization control mechanism 6, driving the drive base 612 to move along with it, thereby driving the mounting frame 91 to reciprocate back and forth. When the centrifugal fan 93 is operating, negative pressure is generated within the collection box 92. A connecting pipe 96 is fixedly connected between the negative pressure dust suction base 94 and the collection box 92. A one-way valve is fixedly installed between the connecting pipe 96 and the collection box 92 to ensure that air can only flow from the negative pressure dust suction base 94 to the collection box 92. Under the action of the negative pressure, dust and impurities on the surface of the packaging bag are sucked in through the dust suction holes at the bottom of the negative pressure dust suction base 94 and enter the collection box 92 through the connecting pipe 96.

[0034] See also Figures 6 to 8 In this embodiment, a heat seal detection method based on thermal infrared comprises the following steps: S1. Fix the entire device at a suitable position on the production line to facilitate fixing the measurement area. The size of the measurement area can be adjusted by the installation distance. On the bag-feeding packaging machine, after the packaging bag is heat-sealed, it will be transferred by the transfer fixture to the next heat-sealing and shaping station. During this process, the sealing area of ​​the packaging bag will be stretched horizontally by the transfer fixture and moved at a constant speed. The infrared temperature measurement module 32 is used to collect temperature at a fixed frequency. The temperature distribution of the seal can be obtained in the fixed measurement area. When the collection frequency is fast enough, the measurement area can cover the entire sealing area. However, since the converted data represents the average temperature of the entire measurement area, the first and last temperature values ​​need to be discarded; S2: Output the judgment result after performing logical operation through the data processing module 33. There are two ways to achieve this: a. Write the threshold temperature, the number of measurements required, and other parameters to the device via MQTT in the host computer, determine the temperature conditions each time, and output the judgment results; b. Test bags are passed through the device at the required production speed, and the temperature distribution is recorded and written into a reference array. During the production process, the corresponding subscript value in the temperature distribution array of each bag is compared with the reference array to determine the error, and a judgment result is output. In addition, the infrared temperature measurement module 32 reads temperature values ​​at a fixed speed, and the packaging bags pass through the measurement area at a fixed speed. When generating the temperature distribution, the data processing module 33 also needs to read the converted temperature values ​​at a fixed speed to generate an array. A timer wake-up method is used to ensure that the data processing module 33 has a constant reading speed. S3. Receive the production line beat signal and filter it. The device does not work independently, but needs to be closely integrated with the production line beat signal to determine whether there is a product passing between the two signals. If there is no qualified product between the two signals, it will be judged as an abnormal situation. Read the temperature sensor analog value regularly and determine whether the temperature data meets the standard; the temperature sensor supports outputting the current temperature once every 15ms, and the implementation method requires that it can be read at a fixed time interval, and a timer wake-up reading function is used to ensure stability; when a product passes, the temperature value read regularly will generate a jump, and this jump signal is used as the start of the temperature judgment logic until the array is filled; an abnormal situation outputs a signal and the indicator light is short; when an abnormality occurs, the alarm light is short-lit after the next signal is received and filtered, and the normally open end of the electromagnetic relay is controlled to close; WLAN connection and MQTT server connection and reconnection.

[0035] Connect to the MQTT server via WLAN. If the connection is interrupted due to network fluctuations or other abnormalities, reconnection attempts are made periodically until reconnection is successful. Parameters are received and characteristic temperatures are uploaded. To accommodate different product production, various parameters need to be modified. Parameters such as threshold temperature, array length, and detection mode can be remotely modified on the host computer via MQTT to facilitate debugging. After each product passes, the characteristic temperatures are uploaded to the server for statistical analysis.

[0036] The working principle of the above embodiment is: During use, the controller starts the dual-axis motor 4 to drive the conveyor belt 2, causing the packaging bags to move on the conveyor belt 2. The output shaft at the left end of the dual-axis motor 4 drives the rocker 65 to rotate. The rocker 65 drives the moving block 68 and the transmission rod 610 to perform specific movements through the connecting rod 66, thereby driving the heat insulation plate 61 to move back and forth, stabilizing the temperature of the detection area of ​​the thermal infrared detection device 3. The transmission rod 610 drives the drive seat 612 and the mounting bracket 91 to move back and forth. The centrifugal fan 93 works to generate negative pressure at the negative pressure dust suction seat 94. The cleaning brush 95 contacts the packaging bag and sucks the dust on the surface of the packaging bag through the dust suction hole. The dust enters the collection box 92 through the connecting pipe 96. The collection frame 99 collects the dust for subsequent cleaning. The stable detection environment reduces damage to the detection equipment and packaging products due to factors such as temperature fluctuations and dust, thereby extending the service life of the equipment and reducing production costs.

[0037] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust, characterized by: The invention comprises a machine base (1), a conveyor belt (2) rotatably mounted inside the machine base (1), a thermal infrared detection device (3) and a photoelectric control intelligent exhaust device (5) fixedly mounted outside the machine base (1), and a double-axis motor (4) fixedly mounted outside the machine base (1) for driving the conveyor belt (2), wherein the thermal infrared detection device (3) is provided with a temperature stabilization control mechanism (6) for ensuring that the thermal infrared detection device (3) accurately obtains temperature data of the sealing portion, and the upper surface of the conveyor belt (2) is provided with a cleaning mechanism (9) for cleaning dust outside the packaging bag; The thermal infrared detection device (3) comprises a detection housing (31), an infrared temperature measurement module (32), a data processing module (33), a signal processing module (34), and an MQTT module (35); The temperature stabilization control mechanism (6) includes two heat insulation plates (61) slidably connected to the outside of the detection housing (31), a connecting frame (62) fixedly connected to the outside of the two heat insulation plates (61), a fixed plate (63) fixedly connected to the left side of the connecting frame (62), a pulley (64) rotatably mounted on the outside of the fixed plate (63), a moving block (68) arranged outside the pulley (64), and a driving mechanism arranged outside the moving block (68) for driving the two heat insulation plates (61) to move back and forth up and down; The cleaning mechanism (9) comprises a mounting frame (91) arranged on the upper surface of the conveyor belt (2), a collecting box (92) fixedly mounted on the top of the mounting frame (91), a centrifugal fan (93) rotatably mounted on the outside of the collecting box (92), a negative pressure dust suction seat (94) fixedly mounted on the outside of the mounting frame (91), a cleaning brush (95) fixedly connected to the bottom of the negative pressure dust suction seat (94), a connecting pipe (96) fixedly connected between the negative pressure dust suction seat (94) and the collecting box (92), and a synchronization structure arranged on the outside of the mounting frame (91) for driving the mounting frame (91) to move back and forth.

2. The packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The driving mechanism includes a rocker (65) fixedly mounted on the output shaft at the left end of the dual-axis motor (4), a connecting rod (66) rotatably connected to the outside of the rocker (65), a pin (67) rotatably connected to one end of the connecting rod (66) away from the rocker (65), and a slide groove (69) provided inside the moving block (68).

3. The packaging machine based on thermal infrared heat seal detection and photoelectric control intelligent exhaust according to claim 2, characterized in that: The pulley (64) is slidably connected to the slide groove (69), the outer diameter of the pulley (64) is slidably connected to the slide groove (69), the pin shaft (67) is fixedly connected to the outside of the moving block (68), a transmission rod (610) is fixedly installed inside the moving block (68), and the moving block (68) is slidably connected to the outside of the machine base (1) through a connecting rod (66).

4. The packaging machine with thermal infrared heat seal detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The interior of the detection housing (31) is provided with a movable opening adapted to the packaging bag, the heat insulation plate (61) is slidably connected to the outside of the movable opening, and the outer diameter of the heat insulation plate (61) is adapted to the inner diameter of the movable opening.

5. The packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The detection housing (31) is fixedly connected to a limiting rod (8) on the outside, and the heat insulation board (61) is fixedly connected to a connecting ear (7) on the outside. A limiting hole adapted to the limiting rod (8) is provided inside the connecting ear (7), and the heat insulation board (61) is slidably connected to the outside of the limiting rod (8) via the connecting ear (7).

6. The packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The synchronization structure includes a driving seat (612) fixedly connected to one end of the transmission rod (610) and a limiting seat (611) arranged outside the transmission rod (610), wherein the driving seat (612) is fixedly connected to the outside of the transmission rod (610) through a mounting sleeve, and the number of the limiting seats (611) is two, and the two limiting seats (611) are fixedly connected to the outside of the machine base (1), the transmission rod (610) is slidably connected to the inside of the two limiting seats (611), and the driving seat (612) is fixedly connected to the outside of the mounting frame (91).

7. The packaging machine with thermal infrared heat seal detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: A dust suction hole is provided at the bottom of the negative pressure dust suction seat (94), and a one-way valve is fixedly installed between the connecting pipe (96) and the collection box (92).

8. The packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The cleaning brush (95) is located on the upper surface of the conveyor belt (2), the cleaning brush (95) is in contact with the upper surface of the packaging bag, and the brushing time of the cleaning brush (95) matches the beat of the conveyor belt (2).

9. The packaging machine with thermal infrared heat seal detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: The interior of the collection box (92) is slidably connected to a collection frame (99), and the interior of the collection box (92) is provided with a taking port adapted to the collection frame (99).

10. The packaging machine based on thermal infrared heat sealing detection and photoelectric control intelligent exhaust according to claim 1, characterized in that: A guide rod (98) is fixedly connected to the top of the machine base (1), and a slider (97) adapted to the guide rod (98) is fixedly installed on the outside of the mounting frame (91), and the slider (97) is slidably connected to the outside of the guide rod (98).

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