Special-shaped packaging bag detection device and detection method

Abstract

The invention relates to the technical field of packaging bag detection, in particular to a special-shaped packaging bag detection device and a special-shaped packaging bag detection method, and solves the problems that during existing packaging bag production, due to the fact that the conveying speed of packaging bags is high, casual inspection operation on the packaging bags is inconvenient, the detection result is influenced by the shapes of the packaging bags, and detection deviation occurs. The special-shaped packaging bag detection device comprises a packaging bag production line, the packaging bag production line comprises two bag body detection modules, each bag body detection module is composed of a material conveying protection mechanism, a tensioning regulation and control mechanism, a light-transmitting detection mechanism and an electrostatic monitoring mechanism, the tensioning regulation and control mechanism is installed on the inner side of the material conveying protection mechanism, and the light-transmitting detection mechanism is installed on the inner side of the material conveying protection mechanism. An electrostatic monitoring mechanism is installed at the rear end of the tensioning regulation and control mechanism, and a light transmission detection mechanism is installed at the upper end of the tensioning regulation and control mechanism. By performing tensioning control on the packaging bag, light-transmitting scanning and electrostatic monitoring can be conveniently performed while stable conveying is performed, so that rapid detection of the special-shaped packaging bag can be conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bag detection, and specifically to a detection device and method for special-shaped packaging bags. Background Technique

[0002] Packaging bags are necessities in people's daily lives and are often used to hold daily necessities. During use, the surface of the packaging bag often cracks, causing items to fall, resulting in losses. During the production process of packaging bags, it is necessary to conduct quality inspections on the packaging bags. Through inspections, it can be ensured that the packaging bags meet the standards of environmental protection, safety, and durability during production and use. The inspection items include physical properties, chemical properties, gas barrier properties, and hygienic properties, so as to comprehensively evaluate the quality and safety of the packaging bags. The inspection can ensure that the material composition of the packaging bags meets environmental protection and safety standards and reduces the impact on the environment.

[0003] During the existing production of packaging bags, due to the relatively fast conveying speed of the packaging bags, it is not convenient to conduct sampling inspections on the packaging bags, and the inspection results are affected by the shape of the packaging bags, resulting in inspection deviations. Therefore, it does not meet the existing requirements. For this reason, we propose a detection device and method for special-shaped packaging bags. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection device and method for special-shaped packaging bags to solve the problems mentioned in the above background technique that during the existing production of packaging bags, due to the relatively fast conveying speed of the packaging bags, it is not convenient to conduct sampling inspections on the packaging bags, and the inspection results are affected by the shape of the packaging bags, resulting in inspection deviations.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A detection device for special-shaped packaging bags includes a packaging bag production line. The packaging bag production line includes two bag body detection modules. The bag body detection module is composed of a feeding protection mechanism, a tension control mechanism, a light transmission detection mechanism, and an electrostatic monitoring mechanism. The tension control mechanism is installed inside the feeding protection mechanism, the electrostatic monitoring mechanism is installed at the rear end of the tension control mechanism, and the light transmission detection mechanism is installed at the upper end of the tension control mechanism. The light transmission detection mechanism includes a connecting cross frame. A power connection box is fixedly installed in the middle of the connecting cross frame. A conical groove is provided on the lower end surface of the power connection box. Multiple supplementary light lamps are provided on the inner wall of the upper end of the conical groove, and multiple scanning cameras are provided on both side walls of the conical groove. The electrostatic monitoring mechanism includes an installation box. A driving motor is fixedly installed inside the middle of the installation box. A wheel set is installed at the output end of the driving motor. A first friction disk and a second friction disk are installed at the front end of the wheel set. A power connection probe is installed inside the upper end of the installation box, and two contact rollers are installed at one end of the power connection probe.

[0006] Preferably, the feeding protection mechanism includes a protection box. Both the front and rear end faces of the protection box are slidably connected with guide plates. An adjusting screw is installed in the middle of the guide plates. A mounting cover is fixedly installed in the middle of the upper end of the protection box. Two first feeding rollers are rotatably connected to the inner side of the bottom end of the mounting cover.

[0007] Preferably, the tension control mechanism includes a central connection frame. Positioning boxes are fixedly installed at both ends of the central connection frame. Metal sleeves are fixedly installed on the inner sides of both ends of the two positioning boxes. Elastic columns are arranged inside the metal sleeves. Two second feeding rollers are installed between the four elastic columns. A transmission seat is slidably connected to the inner side of the bottom end of the positioning box. A cylinder is installed at the bottom end of the transmission seat. A pressure sensor is fixedly installed on the inner side of the upper end of the transmission seat. A second support spring is arranged above the pressure sensor. Positioning tooth blocks are installed on both sides of the transmission seat. A first support spring is arranged on the outer side of one end of the positioning tooth block. A guide sleeve is installed on the outer side of the first support spring.

[0008] Preferably, both ends of the connecting cross-frame are fixedly connected to the two second feeding rollers. The multiple scanning cameras and supplementary lights are linearly arranged along the side of the power connection box. The power connection box is electrically connected to the multiple scanning cameras and supplementary lights. Adjacent two scanning cameras are symmetrically installed relative to the supplementary lights.

[0009] Preferably, the wheel set is composed of a driving wheel and two driven wheels. The output end of the driving motor is fixedly connected to the driving wheel. The rear ends of the first friction disc and the second friction disc both penetrate through the installation box and are fixedly connected to the two driven wheels. The driving wheel is in contact with the two driven wheels. The rotation directions of the two driven wheels are the same. Hair layers and cloth layers are arranged on the front end faces of the first friction disc and the second friction disc.

[0010] Preferably, the front end of the installation box is rotatably connected to the two contact rollers. The installation box is fixedly connected to the power connection probe. The front end of the power connection probe is in contact with the surfaces of the two contact rollers.

[0011] Preferably, the two guide plates and the adjusting screw are symmetrically installed relative to the protection box. The bottom end of the adjusting screw penetrates through the protection box and is threadedly connected to the guide plate. A feeding port is arranged on one side of the guide plate. A raw material bag is arranged between the two feeding ports. The raw material bag is guided and conveyed by the two first feeding rollers and the two second feeding rollers.

[0012] Preferably, the two positioning boxes are symmetrically installed relative to the central connecting frame, the two cylinders are fixedly connected to the bottom end of the mounting cover, the output end of the cylinder is fixedly connected to the transmission seat, both sides of the transmission seat and the surface of the positioning tooth block are provided with a plurality of positioning teeth, the transmission seat is connected to two adjacent positioning tooth blocks by tooth meshing, the positioning tooth block is slidably connected to the guide sleeve by a first supporting spring, the positioning box is fixedly connected to two adjacent guide sleeves, the two adjacent positioning tooth blocks are symmetrically installed relative to the transmission seat, and the pressure sensor is connected to the positioning box by a second supporting spring.

[0013] Preferably, the packaging bag production line also includes a hot and cold filling machine fixedly connected to the two bag body detection modules, the hot and cold filling machine is located between the two bag body detection modules, and a punching traction machine, a gluing adhesive paper machine, a material combining conveyor and a raw material output machine are sequentially installed behind the bag body detection module, and two edge trimming machines and a plurality of edge banding machines are sequentially installed in front of the bag body detection module, and the plurality of edge banding machines are located between the two edge trimming machines. The packaging bag production line produces and forms packaging bags through the raw material output machine, the material combining conveyor, the gluing adhesive paper machine, the punching traction machine, the bag body detection module, the hot and cold filling machine, the edge trimming machine and the edge banding machine in sequence.

[0014] The present invention also provides a detection method of the above-mentioned special-shaped packaging bag detection device, comprising the following steps: S1: The raw material bags are conveyed, cut, sealed and formed through the packaging bag production line, and the packaging bags are inspected by two bag body inspection modules before and after cutting. Specifically, the raw material bags are passed through the guide port provided on the surface of the guide plate and guided and conveyed through the two first guide rollers and the second guide rollers; S2: Turn on the power supply, when the two first guide rollers and the second guide rollers roll and support the raw material bag, the pressure sensor is connected to the positioning box through the second support spring, so that the pressure sensor monitors the pressure of the positioning box through the second support spring under the support of the transmission seat, and the positioning box supports the raw material bag through the metal sleeve, the positioning gear block and the second guide roller in turn, and then the pressure sensor detects the tightness of the raw material bag by monitoring the pressure value of the positioning box exerted by the raw material bag; S3: When the raw material bag is loose, the cylinder is started, so that the cylinder drives the positioning tooth block to move upward through the transmission seat under the support of the installation cover, and then the positioning tooth block drives the second material guide roller to move upward synchronously through the guide sleeve and the positioning box and push up the raw material bag, so as to keep the tightness of the raw material bag, and the metal sleeve and the second material guide roller are connected through the elastic column, so that the elastic column can elastically support the second material guide roller on the inner side of the metal sleeve, so as to reduce the vibration of the second material guide roller during rotation; S4: When the raw material bag passes under the connecting cross-frame, multiple scanning cameras inside the power connection box can simultaneously perform light-penetrating scanning operations on the packaging bag while the fill light is providing supplementary light, thereby realizing the identification of damage and impurities on the packaging bag, facilitating the subsequent rejection of unqualified packaging bags. Start the drive motor, so that the drive motor, under the support of the installation box, synchronously drives the first friction disc and the second friction disc to rotate through the wheel set. Hair layers and cloth layers are respectively arranged on the front end faces of the first friction disc and the second friction disc; S5: Furthermore, the first friction disc and the second friction disc can perform high-speed rotational friction on the raw material bag during its transportation through the hair layers and cloth layers, facilitating the electrostatic treatment of the raw material bag. Both contact rollers are in close contact with the power connection probe and the raw material bag. Thus, the power connection probe can perform electrostatic monitoring on the electrostatically treated raw material bag through the two contact rollers, realizing the determination of the antistatic ability of the packaging bag surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the two first guide rollers and the second guide roller roll and support the raw material bag, the pressure sensor, under the support of the drive seat, monitors the pressure on the positioning box through the second support spring. The pressure sensor detects the tightness of the raw material bag by monitoring the pressure value of the positioning box received from the raw material bag. The air cylinder drives the positioning tooth block to move upward through the drive seat. Then, the positioning tooth block drives the second guide roller to move upward synchronously through the guide sleeve and the positioning box and jacks up the raw material bag, thereby maintaining the tightness of the raw material bag. The metal sleeve and the second guide roller are connected by an elastic column, so that the elastic column can elastically support the second guide roller inside the metal sleeve, thereby reducing the vibration of the second guide roller during rotation and maintaining the stability of the packaging bag during transportation in the bag body detection module, improving the detection accuracy; 2. Multiple scanning cameras inside the power connection box of the present invention can simultaneously perform light-penetrating scanning operations on the packaging bag while the fill light is providing supplementary light, thereby realizing the identification of damage and impurities on the packaging bag, facilitating the subsequent rejection of unqualified packaging bags. The drive motor synchronously drives the first friction disc and the second friction disc to rotate through the wheel set. The first friction disc and the second friction disc can perform high-speed rotational friction on the raw material bag during its transportation through the hair layers and cloth layers, facilitating the electrostatic treatment of the raw material bag. Both contact rollers are in close contact with the power connection probe and the raw material bag. Thus, the power connection probe can perform electrostatic monitoring on the electrostatically treated raw material bag through the two contact rollers, realizing the determination of the antistatic ability of the packaging bag surface. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the packaging bag production line of the present invention; Figure 2 is a schematic structural diagram of the bag body detection module of the present invention; Figure 3 Schematic cross-sectional structure diagram of the bag body detection module of the present invention; Figure 4 Schematic cross-sectional structure diagram of the material conveying protection mechanism of the present invention; Figure 5 Schematic installation structure diagram of the raw material bag of the present invention; Figure 6 Schematic structure diagram of the tension regulation mechanism of the present invention; Figure 7 Schematic cross-sectional structure diagram of the tension regulation mechanism of the present invention; Figure 8 Schematic structure diagram of the static electricity monitoring mechanism of the present invention; Figure 9 Explosion structure diagram of the static electricity monitoring mechanism of the present invention; Figure 10 Schematic structure diagram of the light transmission detection mechanism of the present invention; Figure 11 For the present invention Figure 4 Enlarged structure diagram of area A in

[0017] In the figure: 101, raw material output machine; 102, material mixing conveyor; 103, sticker pasting machine; 104, punching and traction machine; 105, bag body detection module; 106, cold and hot filling machine; 107, edge trimming machine; 108, edge sealing machine; 2, material conveying protection mechanism; 201, protection box; 202, mounting cover; 203, guide plate; 204, adjusting screw; 205, first guide roller; 3, tension regulation mechanism; 301, central connecting frame; 302, second guide roller; 303, positioning box; 304, cylinder; 305, transmission seat; 306, elastic column; 307, metal sleeve; 308, positioning tooth block; 309, guide sleeve; 310, first support spring; 311, pressure sensor; 312, second support spring; 4, light transmission detection mechanism; 401, connecting cross frame; 402, power connection box; 403, scanning camera; 404, fill light; 5, static electricity monitoring mechanism; 501, mounting box; 502, first friction disc; 503, second friction disc; 504, contact roller; 505, power connection probe; 506, wheel set; 507, drive motor. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] The cylinder 304 (model: CDQMB80-50DZ) and the drive motor 507 (model: GV50-3.7KW-60-S) mentioned in the present invention can both be obtained by purchasing from the market or customizing privately.

[0020] Please refer to Figure 1 , an embodiment provided by the present invention: a special-shaped packaging bag detection device, including a packaging bag production line. The packaging bag production line includes two bag body detection modules 105. A cold and hot filling machine 106 is fixedly installed inside the two bag body detection modules 105. The cold and hot filling machine 106 is located between the two bag body detection modules 105. A punching tractor 104, a sticker pasting machine 103, a material combining conveyor 102, and a raw material output machine 101 are sequentially installed behind the bag body detection module 105. Two trimming machines 107 and multiple edge sealing machines 108 are sequentially installed in front of the bag body detection module 105. The multiple edge sealing machines 108 are located between the two trimming machines 107. The packaging bag production line sequentially forms the packaging bag through the raw material output machine 101, the material combining conveyor 102, the sticker pasting machine 103, the punching tractor 104, the bag body detection module 105, the cold and hot filling machine 106, the trimming machine 107, and the edge sealing machine 108. The raw material bag is transported, cut, edge-sealed, and formed through the packaging bag production line, and the packaging bag is detected by the two bag body detection modules 105 before and after cutting.

[0021] Please refer to Figures 2 to 4 , the bag body detection module 105 is composed of a material conveying protection mechanism 2, a tension control mechanism 3, a light transmission detection mechanism 4, and an electrostatic monitoring mechanism 5. The material conveying protection mechanism 2 includes a protection box 201. Guide plates 203 are slidably connected to the front and rear end faces of the protection box 201. An adjustment screw 204 is installed in the middle of the guide plate 203. The two guide plates 203 and the adjustment screw 204 are symmetrically installed relative to the protection box 201. The bottom end of the adjustment screw 204 penetrates through the protection box 201 and is threadedly connected to the guide plate 203. An installation cover 202 is fixedly installed in the middle of the upper end of the protection box 201. Two first guide rollers 205 are rotatably connected to the inner side of the bottom end of the installation cover 202. A material guiding port is provided on one side of the guide plate 203. A raw material bag is provided between the two material guiding ports. The raw material bag is guided and conveyed through the two first guide rollers 205 and the second guide roller 302. When the adjustment screw 204 rotates, it is convenient to adjust the input position of the raw material bag through the guide plate 203.

[0022] Please refer to Figures 3 to 7, a tension control mechanism 3 is installed inside the feeding protection mechanism 2. The tension control mechanism 3 includes a central connection frame 301. Positioning boxes 303 are fixedly installed at both ends of the central connection frame 301. The two positioning boxes 303 are symmetrically installed relative to the central connection frame 301. Metal sleeves 307 are fixedly installed inside both ends of the two positioning boxes 303. Elastic columns 306 are arranged inside the metal sleeves 307. Two second guide rollers 302 are installed between the four elastic columns 306, so that the elastic columns 306 can elastically support the second guide rollers 302 inside the metal sleeves 307, thereby reducing the vibration of the second guide rollers 302 during rotation; A transmission seat 305 is slidably connected to the inner side of the bottom end of the positioning box 303. An air cylinder 304 is installed at the bottom end of the transmission seat 305. The two air cylinders 304 are fixedly connected to the bottom end of the mounting cover 202. The output end of the air cylinder 304 is fixedly connected to the transmission seat 305. A pressure sensor 311 is fixedly installed inside the upper end of the transmission seat 305. A second support spring 312 is arranged above the pressure sensor 311. The pressure sensor 311 is connected to the positioning box 303 through the second support spring 312, so that the pressure sensor 311 can monitor the pressure on the positioning box 303 through the second support spring 312 under the support of the transmission seat 305. The pressure sensor 311 detects the tightness of the raw material bag by monitoring the pressure value of the raw material bag received by the positioning box 303; Positioning tooth blocks 308 are installed on both sides of the transmission seat 305. The adjacent two positioning tooth blocks 308 are symmetrically installed relative to the transmission seat 305. Multiple positioning teeth are arranged on the surfaces of both sides of the transmission seat 305 and the positioning tooth blocks 308. The transmission seat 305 is connected to the adjacent two positioning tooth blocks 308 through tooth meshing. A first support spring 310 is arranged outside one end of the positioning tooth block 308. A guide sleeve 309 is installed outside the first support spring 310. The positioning box 303 is fixedly connected to the adjacent two guide sleeves 309. The positioning tooth block 308 is slidably connected to the guide sleeve 309 through the first support spring 310, so that the air cylinder 304 can drive the positioning tooth block 308 to move upward through the transmission seat 305 under the support of the mounting cover 202. Then, the positioning tooth block 308 drives the second guide roller 302 to move upward synchronously through the guide sleeve 309 and the positioning box 303 and jacks up the raw material bag, thereby maintaining the tightness of the raw material bag.

[0023] Please refer to Figure 2 , Figure 3 , Figure 10 and Figure 11, an electrostatic monitoring mechanism 5 is installed at the rear end of the tension control mechanism 3, and a light transmission detection mechanism 4 is installed at the upper end of the tension control mechanism 3. The light transmission detection mechanism 4 includes a connecting cross frame 401. Both ends of the connecting cross frame 401 are fixedly connected to two second guide rollers 302. A power connection box 402 is fixedly installed in the middle of the connecting cross frame 401. A conical groove is provided on the lower end surface of the power connection box 402. A plurality of supplementary light lamps 404 are provided on the inner wall of the upper end of the conical groove. A plurality of scanning cameras 403 are provided on both side walls of the conical groove. The plurality of scanning cameras 403 and the supplementary light lamps 404 are linearly arranged along the side of the power connection box 402. The power connection box 402 is electrically connected to the plurality of scanning cameras 403 and the supplementary light lamps 404. Two adjacent scanning cameras 403 are symmetrically installed relative to the supplementary light lamps 404. The plurality of scanning cameras 403 can synchronously perform a light transmission scanning operation on the packaging bag while the supplementary light lamps 404 are providing supplementary light, so as to identify the damage and impurities of the packaging bag, facilitating the subsequent rejection of unqualified packaging bags.

[0024] Please refer to Figure 4 , Figure 8 , Figure 9 and Figure 10 , the electrostatic monitoring mechanism 5 includes an installation box 501. A drive motor 507 is fixedly installed inside the middle of the installation box 501. A wheel set 506 is installed at the output end of the drive motor 507. A first friction disc 502 and a second friction disc 503 are installed at the front end of the wheel set 506. The wheel set 506 is composed of a driving wheel and two driven wheels. The output end of the drive motor 507 is fixedly connected to the driving wheel. The rear ends of the first friction disc 502 and the second friction disc 503 both penetrate through the installation box 501 and are fixedly connected to the two driven wheels. The driving wheel is in contact with the two driven wheels. The rotation directions of the two driven wheels are the same. Hair layers and cloth layers are provided on the front end surfaces of the first friction disc 502 and the second friction disc 503. The first friction disc 502 and the second friction disc 503 can perform high-speed rotational friction on the raw material bag while it is being conveyed through the hair layers and cloth layers, facilitating the electrostatic treatment of the raw material bag; A power connection probe 505 is installed inside the upper end of the installation box 501. Two contact rollers 504 are installed at one end of the power connection probe 505. The front end of the installation box 501 is rotatably connected to the two contact rollers 504. The installation box 501 is fixedly connected to the power connection probe 505. The front end of the power connection probe 505 is in contact with the surfaces of the two contact rollers 504. The power connection probe 505 can perform electrostatic monitoring on the raw material bag after electrostatic treatment through the two contact rollers 504, realizing the measurement of the antistatic ability of the surface of the packaging bag.

[0025] The present invention also provides a detection method for the above-mentioned special-shaped packaging bag detection device, including the following steps: S1: Convey, cut, seal the edges and form the raw material bags through the packaging bag production line, and detect the packaging bags through two bag body detection modules 105 before and after cutting. Specifically, pass the raw material bags through the material guiding ports provided on the surface of the material guiding plate 203 and guide and convey them through two first material guiding rollers 205 and a second material guiding roller 302; S2: Connect the power supply. When the two first material guiding rollers 205 and the second material guiding roller 302 roll and support the raw material bags, the pressure sensor 311 and the positioning box 303 are connected by a second support spring 312, so that the pressure sensor 311 monitors the pressure on the positioning box 303 through the second support spring 312 under the support of the transmission seat 305. And the positioning box 303 supports the raw material bags through a metal sleeve 307, a positioning tooth block 308 and the second material guiding roller 302 in sequence. Furthermore, the pressure sensor 311 detects the tightness of the raw material bags by monitoring the pressure value of the positioning box 303 affected by the raw material bags; S3: When the raw material bags are loose, start the cylinder 304, so that the cylinder 304 drives the positioning tooth block 308 to move upward through the transmission seat 305 under the support of the mounting cover 202. Furthermore, the positioning tooth block 308 drives the second material guiding roller 302 to move upward synchronously through the guide sleeve 309 and the positioning box 303 and jack up the raw material bags, thereby maintaining the tightness of the raw material bags. The metal sleeve 307 and the second material guiding roller 302 are connected by an elastic column 306, so that the elastic column 306 can elastically support the second material guiding roller 302 inside the metal sleeve 307, thereby reducing the vibration of the second material guiding roller 302 during rotation; S4: When the raw material bags pass under the connecting cross frame 401, multiple scanning cameras 403 inside the power connection box 402 can synchronously perform light-transmitting scanning operations on the packaging bags while the supplementary light lamps 404 provide supplementary light, thereby realizing the identification of damaged and impurities in the packaging bags, facilitating the subsequent rejection of unqualified packaging bags. Start the drive motor 507, so that the drive motor 507 drives the first friction disk 502 and the second friction disk 503 to rotate synchronously through a wheel set 506 under the support of the mounting box 501. Hair layers and cloth layers are respectively provided on the front end faces of the first friction disk 502 and the second friction disk 503; S5: Furthermore, the first friction disk 502 and the second friction disk 503 can perform high-speed rotational friction on the raw material bags during transportation through the hair layers and cloth layers, facilitating the electrostatic treatment of the raw material bags. Both contact rollers 504 are in close contact with the power connection probe 505 and the raw material bags. Furthermore, the power connection probe 505 can monitor the static electricity of the raw material bags after electrostatic treatment through the two contact rollers 504, realizing the determination of the antistatic ability on the surface of the packaging bags.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An irregular packaging bag detection device, including a packaging bag production line, characterized in that, The packaging bag production line includes two bag body detection modules. The bag body detection module is composed of a feeding protection mechanism, a tension regulation mechanism, a light transmission detection mechanism, and an electrostatic monitoring mechanism. The tension regulation mechanism is installed inside the feeding protection mechanism. The electrostatic monitoring mechanism is installed at the rear end of the tension regulation mechanism. The light transmission detection mechanism is installed at the upper end of the tension regulation mechanism. The light transmission detection mechanism includes a connecting cross frame. A power connection box is fixedly installed in the middle of the connecting cross frame. A conical groove is provided on the lower end surface of the power connection box. A plurality of supplementary light lamps are provided on the inner wall of the upper end of the conical groove. A plurality of scanning cameras are provided on both side walls of the conical groove. The electrostatic monitoring mechanism includes an installation box. A driving motor is fixedly installed inside the middle of the installation box. A wheel set is installed at the output end of the driving motor. A first friction disc and a second friction disc are installed at the front end of the wheel set. A power connection probe is installed inside the upper end of the installation box. Two contact rollers are installed at one end of the power connection probe.

2. The special-shaped packaging bag detection device according to claim 1, wherein: The feeding protection mechanism includes a protection box. Guide plates are slidably connected to the front and rear end surfaces of the protection box. An adjustment screw is installed in the middle of the guide plate. An installation cover is fixedly installed in the middle of the upper end of the protection box. Two first guide rollers are rotatably connected to the inner side of the bottom end of the installation cover.

3. The special-shaped packaging bag detection device according to claim 2, wherein: The tension regulation mechanism includes a central connection frame. Positioning boxes are fixedly installed at both ends of the central connection frame. Metal sleeves are fixedly installed inside both ends of the two positioning boxes. Elastic columns are provided inside the metal sleeves. Two second guide rollers are installed between the four elastic columns. A transmission seat is slidably connected to the inner side of the bottom end of the positioning box. A cylinder is installed at the bottom end of the transmission seat. A pressure sensor is fixedly installed inside the upper end of the transmission seat. A second support spring is provided above the pressure sensor. Positioning tooth blocks are installed on both sides of the transmission seat. A first support spring is provided on the outer side of one end of the positioning tooth block. A guide sleeve is installed on the outer side of the first support spring.

4. The special-shaped packaging bag detection device according to claim 3, characterized in that: Both ends of the connecting cross frame are fixedly connected to the two second guide rollers. The plurality of scanning cameras and supplementary light lamps are linearly arranged along the side of the power connection box. The power connection box is electrically connected to the plurality of scanning cameras and supplementary light lamps. Adjacent two scanning cameras are symmetrically installed relative to the supplementary light lamps.

5. The special-shaped packaging bag detection device according to claim 4, characterized in that: The wheel set is composed of a driving wheel and two driven wheels. The output end of the driving motor is fixedly connected to the driving wheel. The rear ends of the first friction disc and the second friction disc both penetrate through the installation box and are fixedly connected to the two driven wheels. The driving wheel is in contact with the two driven wheels. The rotation directions of the two driven wheels are the same. Hair layers and cloth layers are provided on the front end surfaces of the first friction disc and the second friction disc.

6. The special-shaped packaging bag detection device according to claim 5, characterized in that: The front end of the installation box is rotatably connected to the two contact rollers. The installation box is fixedly connected to the power connection probe. The front end of the power connection probe is in contact with the surfaces of the two contact rollers.

7. The special-shaped packaging bag detection device according to claim 6, characterized in that: The two material guiding plates and the adjusting screw are symmetrically installed relative to the protective box. The bottom end of the adjusting screw penetrates through the protective box and is threadedly connected to the material guiding plate. One side of the material guiding plate is provided with a material guiding port. A raw material bag is arranged between the two material guiding ports. The raw material bag is guided and conveyed by two first material guiding rollers and a second material guiding roller.

8. The special-shaped packaging bag detection device according to claim 7, characterized in that: The two positioning boxes are symmetrically installed relative to the central connecting frame. The two air cylinders are fixedly connected to the bottom end of the mounting cover. The output end of the air cylinder is fixedly connected to the transmission seat. A plurality of positioning teeth are arranged on both sides of the transmission seat and on the surface of the positioning tooth block. The transmission seat is connected to the adjacent two positioning tooth blocks through meshing between the teeth. The positioning tooth block is slidably connected to the guide sleeve through a first support spring. The positioning box is fixedly connected to the adjacent two guide sleeves. The adjacent two positioning tooth blocks are symmetrically installed relative to the transmission seat. The pressure sensor is connected to the positioning box through a second support spring.

9. The special-shaped packaging bag detection device according to claim 8, wherein: The packaging bag production line further includes a hot and cold filling machine fixedly connected to the two bag body detection modules. The hot and cold filling machine is located between the two bag body detection modules. An punching and traction machine, a sticker pasting machine, a material combining conveyor and a raw material output machine are sequentially installed behind the bag body detection module. Two trimming machines and a plurality of edge sealing machines are sequentially installed in front of the bag body detection module. The plurality of edge sealing machines are located between the two trimming machines. The packaging bag production line sequentially produces and forms the packaging bag through the raw material output machine, the material combining conveyor, the sticker pasting machine, the punching and traction machine, the bag body detection module, the hot and cold filling machine, the trimming machine and the edge sealing machine.

10. A detection method for an irregular packaging bag detection device according to claim 9, comprising the following steps: S1: The raw material bag is conveyed, cut, edge-sealed and formed through the packaging bag production line, and the packaging bag is detected by the two bag body detection modules before and after cutting. Specifically, the raw material bag is passed through the material guiding port provided on the surface of the material guiding plate and is guided and conveyed by the two first material guiding rollers and the second material guiding roller. S2: The power is turned on. When the two first material guiding rollers and the second material guiding roller roll and support the raw material bag, the pressure sensor is connected to the positioning box through the second support spring, so that the pressure sensor monitors the pressure on the positioning box through the second support spring under the support of the transmission seat. And the positioning box supports the raw material bag through the metal sleeve, the positioning tooth block and the second material guiding roller in sequence. Furthermore, the pressure sensor detects the tightness of the raw material bag by monitoring the pressure value received by the positioning box from the raw material bag. S3: When the raw material bag is loose, the air cylinder is started, so that the air cylinder drives the positioning tooth block to move upward through the transmission seat under the support of the mounting cover. Furthermore, the positioning tooth block drives the second material guiding roller to move upward synchronously through the guide sleeve and the positioning box and jacks up the raw material bag, so as to keep the raw material bag tight. The metal sleeve is connected to the second material guiding roller through an elastic column, so that the elastic column can elastically support the second material guiding roller inside the metal sleeve, thereby reducing the vibration of the second material guiding roller during rotation. S4: When the raw material bag passes under the connecting cross-frame, multiple scanning cameras inside the power connection box can simultaneously perform a light-transmitting scanning operation on the packaging bag while the fill light is providing supplementary lighting, thereby identifying the damage and impurities of the packaging bag, facilitating the subsequent rejection of unqualified packaging bags. Start the drive motor, so that the drive motor drives the first friction disc and the second friction disc to rotate synchronously through the wheel set under the support of the installation box. A hair layer and a cloth layer are respectively provided on the front end surfaces of the first friction disc and the second friction disc; S5: The first friction disc and the second friction disc can perform high-speed rotational friction on the raw material bag while it is being conveyed through the hair layer and the cloth layer, facilitating the electrostatic treatment of the raw material bag. Both contact rollers are in close contact with the power connection probe and the raw material bag. Thus, the power connection probe can monitor the static electricity of the raw material bag after electrostatic treatment through the two contact rollers, realizing the measurement of the antistatic ability of the packaging bag surface.

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