A detection device and method for special-shaped packaging bags

Abstract

The present invention relates to the field of packaging bag detection technology, specifically to a device and method for detecting special-shaped packaging bags, which solves the problem that during the existing production of packaging bags, due to the high conveying speed of the packaging bags, it is inconvenient to perform random inspections on the packaging bags, and the detection results are affected by the shape of the packaging bags, resulting in detection deviations. The special-shaped packaging bag detection device includes a packaging bag production line, and the packaging bag production line includes two bag body detection modules. The bag body detection module is composed of a feeding protection mechanism, a tensioning control mechanism, a light transmission detection mechanism, and an electrostatic monitoring mechanism. A tensioning control mechanism is installed on the inner side of the feeding protection mechanism, an electrostatic monitoring mechanism is installed at the rear end of the tensioning control mechanism, and a light transmission detection mechanism is installed at the upper end of the tensioning control mechanism. The present invention controls the tensioning of the packaging bags, thereby facilitating light transmission scanning and electrostatic monitoring while stabilizing the conveying, thereby facilitating the rapid detection of special-shaped packaging bags.

Description

Technical Field

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

[0002] Packaging bags are essential in our daily lives, often used to hold daily necessities. During use, bags often break, causing items to fall out and cause losses. Therefore, quality inspection of bags is essential during the production process. This ensures that the bags meet environmental, safety, and durability standards during production and use. Testing encompasses physical, chemical, gas barrier, and hygienic properties, comprehensively assessing the quality and safety of the bags. This testing ensures that the material composition of the bags meets environmental and safety standards, minimizing their impact on the environment.

[0003] During the existing production of packaging bags, due to the fast conveying speed of the packaging bags, it is inconvenient to perform random 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 needs. In this regard, we propose a special-shaped packaging bag inspection device and inspection method. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and method for detecting special-shaped packaging bags to solve the problem raised in the above background technology that during the existing production of packaging bags, due to the fast conveying speed of the packaging bags, it is inconvenient to perform random inspection operations on the packaging bags, and the detection results are affected by the shape of the packaging bags, resulting in detection deviations.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for detecting special-shaped packaging bags includes a packaging bag production line, which includes two bag body detection modules. The bag body detection module consists of a feeding protection mechanism, a tensioning control mechanism, a light transmission detection mechanism and an electrostatic monitoring mechanism. The feeding protection mechanism is installed with a tensioning control mechanism on the inner side, the electrostatic monitoring mechanism is installed at the rear end of the tensioning control mechanism, and the light transmission detection mechanism is installed on the upper end of the tensioning control mechanism. The light transmission detection mechanism includes a connecting cross frame, a power box is fixedly installed in the middle of the connecting cross frame, the lower end surface of the power box is provided with a conical groove, the inner wall of the upper end of the conical groove is provided with multiple fill lights, and both side walls of the conical groove are provided with multiple scanning cameras; the electrostatic monitoring mechanism includes an installation box, a transmission motor is fixedly installed on the inner side of the middle part of the installation box, the output end of the transmission motor is installed with a wheel group, the front end of the wheel group is installed with a first friction disc and a second friction disc, an electric probe is installed on the inner side of the upper end of the installation box, and two contact rollers are installed at one end of the electric probe.

[0007] Preferably, the material feeding protection mechanism includes a protection box, the front and rear end surfaces of the protection box are slidably connected with material guide plates, the middle part of the material guide plate is installed with an adjusting screw, the middle part of the upper end of the protection box is fixedly installed with a mounting cover, and the inner side of the bottom end of the mounting cover is rotatably connected to two first material guide rollers.

[0008] Preferably, the tensioning and regulating mechanism includes a central connecting frame, both ends of the central connecting frame are fixedly installed with positioning boxes, the inner sides of both ends of the two positioning boxes are fixedly installed with metal sleeves, the inner sides of the metal sleeves are provided with elastic columns, two second material guide rollers are installed between the four elastic columns, the inner side of the bottom end of the positioning box is slidably connected with a transmission seat, the bottom end of the transmission seat is installed with a cylinder, the inner side of the upper end of the transmission seat is fixedly installed with a pressure sensor, the upper end of the pressure sensor is provided with a second support spring, positioning gear blocks are installed on both sides of the transmission seat, the outer side of one end of the positioning gear block is provided with a first support spring, and the outer side of the first support spring is provided with a guide sleeve.

[0009] Preferably, both ends of the connecting cross frame are fixedly connected to the two second material guide rollers, the multiple scanning cameras and fill lights are linearly arranged along the side of the electrical box, the electrical box is electrically connected to the multiple scanning cameras and fill lights, and two adjacent scanning cameras are symmetrically installed relative to the fill lights.

[0010] Preferably, the wheel set consists of a driving wheel and two driven wheels, the output end of the transmission motor is fixedly connected to the driving wheel, the rear ends of the first friction disc and the second friction disc both pass through the mounting box and are fixedly connected to the two driven wheels, the driving wheel is in close contact with the two driven wheels, the two driven wheels have the same rotation direction, and the front ends of the first friction disc and the second friction disc are both provided with a hair layer and a cloth layer.

[0011] Preferably, the front end of the installation box is rotatably connected to both contact rollers, the installation box is fixedly connected to the power connection probe, and the front end of the power connection probe is in contact with the surfaces of the two contact rollers.

[0012] Preferably, the two material guide plates and the adjusting screw are symmetrically installed relative to the protective box, the bottom end of the adjusting screw passes through the protective box and is threadedly connected to the material guide plate, a material guide port is provided on one side of the material guide plate, and a raw material bag is provided between the two material guide ports, and the raw material bag is guided and transported by two first material guide rollers and a second material guide roller.

[0013] 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, and a plurality of positioning teeth are provided on both sides of the transmission seat and the surface of the positioning gear block. The transmission seat is connected to the two adjacent positioning gear blocks through tooth meshing, the positioning gear block is slidably connected to the guide sleeve through a first supporting spring, the positioning box is fixedly connected to the two adjacent guide sleeves, the two adjacent positioning gear blocks are symmetrically installed relative to the transmission seat, and the pressure sensor is connected to the positioning box through a second supporting spring.

[0014] 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 installed in sequence behind the bag body detection module, and two edge trimming machines and multiple edge sealing machines are installed in sequence in front of the bag body detection module, and the multiple edge sealing 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 sealing machine in sequence.

[0015] The present invention also provides a detection method for the above-mentioned special-shaped packaging bag detection device, comprising the following steps:

[0016] S1: The raw material bags are conveyed, cut, edge-sealed, and formed through the packaging bag production line. The packaging bags are inspected by two bag inspection modules before and after cutting. Specifically, the raw material bags are passed through the guide port on the surface of the guide plate and guided and conveyed by the two first and second guide rollers.

[0017] 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 via the second support spring. Under the support of the transmission seat, the pressure sensor monitors the pressure of the positioning box via the second support spring. The positioning box supports the raw material bag in sequence via the metal sleeve, the positioning gear block, and the second guide roller. The pressure sensor then detects the tightness of the raw material bag by monitoring the pressure value of the raw material bag on the positioning box.

[0018] S3: When the raw material bag is loose, the cylinder is started, so that the cylinder drives the positioning gear block to move upward through the transmission seat under the support of the installation cover, and then the positioning gear block drives the second guide roller to move upward synchronously through the guide sleeve and the positioning box and push 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 on the inner side of the metal sleeve, thereby reducing the vibration of the second guide roller during rotation;

[0019] S4: When the raw material bags pass under the connecting cross frame, multiple scanning cameras inside the power box can simultaneously perform light-through-light scanning on the packaging bags while providing fill light, thereby identifying damaged and impurity-laden packaging bags, facilitating the subsequent removal of unqualified packaging bags. The transmission motor is started, and under the support of the mounting box, the transmission motor drives the first friction disc and the second friction disc to rotate synchronously via the wheel set. The front ends of the first friction disc and the second friction disc are provided with a hair layer and a fabric layer, respectively.

[0020] S5: The first friction disc and the second friction disc can perform high-speed rotation and friction on the raw material bag through the hair layer and the cloth layer while conveying the raw material bag, so as to facilitate the electrostatic treatment of the raw material bag. The two contact rollers are in contact with the electric probe and the raw material bag. The electric probe can monitor the electrostatic charge of the raw material bag after the electrostatic treatment through the two contact rollers, so as to measure the antistatic ability of the packaging bag surface.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention realizes that when the two first guide rollers and the second guide roller roll and support the raw material bag, the pressure sensor monitors the pressure of the positioning box through the second support spring under the support action of the transmission seat. The pressure sensor detects the tightness of the raw material bag by monitoring the pressure value of the raw material bag on the positioning box. The cylinder drives the positioning gear block to move upward through the transmission seat, and then the positioning gear block drives the second guide roller to move upward synchronously through the guide sleeve and the positioning box and push 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 on the inner side of the metal sleeve, thereby reducing the vibration of the second guide roller during rotation, maintaining the stability of the packaging bag conveyed in the bag body detection module, and improving the detection accuracy.

[0023] 2. The present invention can perform a light-transmitting scanning operation on the packaging bag simultaneously with the fill light through the multiple scanning cameras on the inside of the power box, thereby realizing the identification of damaged and impurities in the packaging bag, and facilitating the subsequent removal of unqualified packaging bags. The transmission motor synchronously drives the first friction disc and the second friction disc to rotate through the wheel group. The first friction disc and the second friction disc can perform high-speed rotation and friction on the raw material bag while conveying it through the hair layer and the cloth layer, which is convenient for electrostatic treatment of the raw material bag. The two contact rollers are in contact with the power probe and the raw material bag, and then the power probe can perform electrostatic monitoring on the raw material bag after electrostatic treatment through the two contact rollers, thereby realizing the measurement of the antistatic ability of the packaging bag surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the packaging bag production line of the present invention;

[0025] Figure 2 Schematic diagram of the structure of the bag detection module of the present invention;

[0026] Figure 3 Schematic diagram of the cross-sectional structure of the bag detection module of the present invention;

[0027] Figure 4 Schematic diagram of the cross-sectional structure of the material feeding protection mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the installation structure of the raw material bag of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the tensioning control mechanism of the present invention;

[0030] Figure 7 Schematic diagram of the cross-sectional structure of the tensioning control mechanism of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the electrostatic monitoring mechanism of the present invention;

[0032] Figure 9 Schematic diagram of the explosion structure of the static electricity monitoring mechanism of the present invention;

[0033] Figure 10 Schematic diagram of the structure of the light transmission detection mechanism of the present invention;

[0034] Figure 11 For the present invention Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0035] In the figure: 101, raw material output machine; 102, material combining conveyor; 103, adhesive paper applying machine; 104, punching traction machine; 105, bag body inspection module; 106, hot and cold packaging machine; 107, edge trimming machine; 108, edge banding machine; 2, material feeding protection mechanism; 201, protection box; 202, installation cover; 203, guide plate; 204, adjustment screw; 205, first guide roller; 3, tensioning control mechanism; 301, center connecting frame; 302, second guide roller; 303, positioning box; 304, cylinder; 305, transmission Moving seat; 306, elastic column; 307, metal sleeve; 308, positioning gear block; 309, guide sleeve; 310, first supporting spring; 311, pressure sensor; 312, second supporting spring; 4, light transmission detection mechanism; 401, connecting cross frame; 402, power box; 403, scanning camera; 404, fill light; 5, electrostatic monitoring mechanism; 501, installation box; 502, first friction disc; 503, second friction disc; 504, contact roller; 505, power probe; 506, wheel set; 507, transmission motor. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] The cylinder 304 (model CDQMB80-50DZ) and the transmission motor 507 (model GV50-3.7KW-60-S) mentioned in the present invention can be purchased from the market or customized.

[0038] See also Figure 1 The present invention provides an embodiment of a special-shaped packaging bag detection device, including a packaging bag production line, which includes two bag detection modules 105, a hot and cold packaging machine 106 fixedly installed inside the two bag detection modules 105, and the hot and cold packaging machine 106 is located between the two bag detection modules 105. The punching traction machine 104, the adhesive paper machine 103, the material mixing conveyor 102 and the raw material output machine 101 are installed in sequence behind the bag detection module 105, and two A trimmer 107 and multiple edge banding machines 108, multiple edge banding machines 108 are located between the two trimmers 107, and the packaging bag production line sequentially passes through the raw material output machine 101, the material combining conveyor 102, the adhesive paper machine 103, the punching and traction machine 104, the bag body inspection module 105, the hot and cold packaging machine 106, the trimmer 107 and the edge banding machine 108 to produce and form the packaging bags. The raw material bags are transported, cut, edge-sealed and formed through the packaging bag production line, and the packaging bags are inspected by the two bag body inspection modules 105 before and after cutting.

[0039] See also Figures 2 to 4 The bag detection module 105 is composed of a feeding protection mechanism 2, a tensioning control mechanism 3, a light transmission detection mechanism 4 and an electrostatic monitoring mechanism 5. The feeding protection mechanism 2 includes a protection box 201. The front and rear end surfaces of the protection box 201 are slidably connected with a guide plate 203. The middle part of the guide plate 203 is equipped with an adjusting screw 204. The two guide plates 203 and the adjusting screw 204 are symmetrically installed relative to the protection box 201. The bottom end of the adjusting screw 204 passes through the protection box 201 and is connected to the guide plate 203 by a thread. A mounting cover 202 is fixedly installed in the middle of the upper end of the protection box 201. The inner side of the bottom end of the mounting cover 202 is rotatably connected to two first guide rollers 205. A material guide port is provided on one side of the guide plate 203. A raw material bag is provided between the two guide ports. The raw material bag is guided and transported by the two first guide rollers 205 and the second guide roller 302. When the adjusting screw 204 rotates, the input position of the raw material bag is easily adjusted through the guide plate 203.

[0040] See also Figures 3 to 7A tensioning and regulating mechanism 3 is installed on the inner side of the feeding protection mechanism 2. The tensioning and regulating mechanism 3 includes a central connecting frame 301. Positioning boxes 303 are fixedly installed on both ends of the central connecting frame 301. The two positioning boxes 303 are symmetrically installed relative to the central connecting frame 301. Metal sleeves 307 are fixedly installed on the inner sides of both ends of the two positioning boxes 303. Elastic columns 306 are provided on the inner sides of 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 roller 302 on the inner sides of the metal sleeves 307, thereby reducing the vibration of the second guide roller 302 during rotation.

[0041] The inner side of the bottom end of the positioning box 303 is slidably connected with a transmission seat 305, and the bottom end of the transmission seat 305 is installed with a cylinder 304. The two cylinders 304 are fixedly connected to the bottom end of the mounting cover 202, and the output end of the cylinder 304 is fixedly connected to the transmission seat 305. A pressure sensor 311 is fixedly installed on the inner side of the upper end of the transmission seat 305. A second supporting spring 312 is provided on the upper end of the pressure sensor 311. The pressure sensor 311 is connected to the positioning box 303 through the second supporting spring 312, so that the pressure sensor 311 monitors the pressure of the positioning box 303 through the second supporting 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 on the positioning box 303;

[0042] The cam 308 is a plurality of positioning teeth provided on both sides of the transmission seat 305, and the surfaces of the positioning teeth are provided with a plurality of positioning teeth. The transmission seat 305 is connected to the two adjacent positioning teeth by meshing with the teeth. A first support spring 310 is provided on the outer side of one end of the positioning teeth block 308, and a guide sleeve 309 is installed on the outer side of the first support spring 310. The positioning box 303 is fixedly connected to the two adjacent guide sleeves 309. The positioning teeth block 308 and the guide sleeve 309 are slidably connected by the first support spring 310, so that the cylinder 304 drives the positioning teeth block 308 to move upward through the transmission seat 305 under the support of the mounting cover 202, and then the positioning teeth block 308 drives the second guide roller 302 to move upward synchronously through the guide sleeve 309 and the positioning box 303 and pushes up the raw material bag, thereby maintaining the tightness of the raw material bag.

[0043] See also Figure 2 、 Figure 3 、 Figure 10 and Figure 11, the rear end of the tensioning and regulating mechanism 3 is equipped with an electrostatic monitoring mechanism 5, the upper end of the tensioning and regulating mechanism 3 is equipped with a light transmission detection mechanism 4, the light transmission detection mechanism 4 includes a connecting cross frame 401, both ends of the connecting cross frame 401 are fixedly connected to the two second guide rollers 302, the middle part of the connecting cross frame 401 is fixedly equipped with a power box 402, the lower end face of the power box 402 is provided with a conical groove, the inner wall of the upper end of the conical groove is provided with a plurality of fill lights 404, and the two side walls of the conical groove are provided with a plurality of scanning cameras 403, multiple The scanning cameras 403 and the fill lights 404 are arranged linearly along the side of the electrical box 402. The electrical box 402 is electrically connected to the multiple scanning cameras 403 and the fill lights 404. Two adjacent scanning cameras 403 are installed symmetrically relative to the fill lights 404. The multiple scanning cameras 403 can perform a light-transmitting scanning operation on the packaging bags while the fill lights 404 are performing fill light, thereby identifying damage and impurities in the packaging bags, making it easier to remove unqualified packaging bags.

[0044] See also Figure 4 、 Figure 8 、 Figure 9 and Figure 10 The electrostatic monitoring mechanism 5 includes an installation box 501, a transmission motor 507 is fixedly installed on the inner side of the middle part of the installation box 501, a wheel group 506 is installed on the output end of the transmission motor 507, a first friction disc 502 and a second friction disc 503 are installed on the front end of the wheel group 506, and the wheel group 506 consists of a driving wheel and two driven wheels, the output end of the transmission 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 pass 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, and the two driven wheels have the same rotation direction, and the front ends of the first friction disc 502 and the second friction disc 503 are provided with a hair layer and a cloth layer, and the first friction disc 502 and the second friction disc 503 can perform high-speed rotation friction while conveying the raw material bag through the hair layer and the cloth layer, so as to facilitate electrostatic treatment of the raw material bag;

[0045] An electric probe 505 is installed on the inner side of the upper end of the installation box 501, and two contact rollers 504 are installed on one end of the electric 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 electric probe 505. The front end of the electric probe 505 is in contact with the surfaces of the two contact rollers 504. The electric probe 505 can monitor the static electricity of the raw material bags after electrostatic treatment through the two contact rollers 504, so as to measure the antistatic ability of the surface of the packaging bag.

[0046] The present invention also provides a detection method for the above-mentioned special-shaped packaging bag detection device, comprising the following steps:

[0047] S1: The raw material bags are conveyed, cut, edge-sealed, and formed through the packaging bag production line. The packaging bags are inspected by two bag inspection modules 105 before and after cutting. Specifically, the raw material bags are passed through the guide port provided on the surface of the guide plate 203 and guided and conveyed by the two first guide rollers 205 and the second guide rollers 302;

[0048] S2: Turn on the power supply. When the two first guide rollers 205 and the second guide roller 302 roll and support the raw material bag, the pressure sensor 311 is connected to the positioning box 303 via the second support spring 312. Under the support of the transmission base 305, the pressure sensor 311 monitors the pressure of the positioning box 303 via the second support spring 312. The positioning box 303 supports the raw material bag in sequence via the metal sleeve 307, the positioning gear block 308 and the second guide roller 302. Then, the pressure sensor 311 detects the tightness of the raw material bag by monitoring the pressure value of the raw material bag on the positioning box 303.

[0049] S3: When the raw material bag is loose, the cylinder 304 is started, so that the cylinder 304 drives the positioning gear block 308 to move upward through the transmission seat 305 under the support of the installation cover 202, and then the positioning gear block 308 drives the second guide roller 302 to move upward synchronously through the guide sleeve 309 and the positioning box 303 and push up the raw material bag, thereby maintaining the tightness of the raw material bag. The metal sleeve 307 is connected to the second guide roller 302 through the elastic column 306, so that the elastic column 306 can elastically support the second guide roller 302 on the inner side of the metal sleeve 307, thereby reducing the vibration of the second guide roller 302 during rotation;

[0050] S4: When the raw material bag passes under the connecting cross frame 401, the multiple scanning cameras 403 inside the electrical box 402 can simultaneously perform a light transmission scanning operation on the packaging bag while the fill light 404 is providing fill light, thereby identifying damaged packaging bags and impurities, facilitating the subsequent rejection of unqualified packaging bags. The transmission motor 507 is started, so that the transmission motor 507, supported by the mounting box 501, drives the first friction disc 502 and the second friction disc 503 to rotate synchronously via the wheel set 506. The front ends of the first friction disc 502 and the second friction disc 503 are provided with a hair layer and a cloth layer, respectively.

[0051] S5: The first friction disc 502 and the second friction disc 503 can perform high-speed rotation and friction on the raw material bag while conveying it through the hair layer and the cloth layer, so as to facilitate the electrostatic treatment of the raw material bag. The two contact rollers 504 are in contact with the electric probe 505 and the raw material bag. The electric probe 505 can perform electrostatic monitoring on the raw material bag after electrostatic treatment through the two contact rollers 504, so as to measure the antistatic ability of the packaging bag surface.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for detecting special-shaped packaging bags, comprising a packaging bag production line, characterized in that: The packaging bag production line includes two bag body detection modules, and the bag body detection module consists of a feeding protection mechanism, a tensioning control mechanism, a light transmission detection mechanism and an electrostatic monitoring mechanism. The inner side of the feeding protection mechanism is installed with a tensioning control mechanism, the rear end of the tensioning control mechanism is installed with an electrostatic monitoring mechanism, and the upper end of the tensioning control mechanism is installed with a light transmission detection mechanism. The light transmission detection mechanism includes a connecting cross frame, and a power box is fixedly installed in the middle of the connecting cross frame. The lower end face of the power box is provided with a conical groove, and the inner wall of the upper end of the conical groove is provided with a plurality of fill lights, and both side walls of the conical groove are provided with a plurality of scanning cameras; the electrostatic monitoring mechanism includes an installation box, and a transmission motor is fixedly installed on the inner side of the middle part of the installation box, and a wheel group is installed at the output end of the transmission motor, and a first friction disc and a second friction disc are installed at the front end of the wheel group. An electric probe is installed on the inner side of the upper end of the installation box, and two contact rollers are installed at one end of the electric probe; The material feeding protection mechanism includes a protection box, the front and rear end surfaces of the protection box are slidably connected to the material guide plate, the middle part of the material guide plate is installed with an adjustment screw, the middle part of the upper end of the protection box is fixedly installed with a mounting cover, and the inner side of the bottom end of the mounting cover is rotatably connected to two first material guide rollers; The tensioning and regulating mechanism includes a central connecting frame, both ends of the central connecting frame are fixedly installed with positioning boxes, the inner sides of both ends of the two positioning boxes are fixedly installed with metal sleeves, the inner sides of the metal sleeves are provided with elastic columns, two second material guide rollers are installed between the four elastic columns, the inner side of the bottom end of the positioning box is slidably connected with a transmission seat, the bottom end of the transmission seat is installed with a cylinder, the inner side of the upper end of the transmission seat is fixedly installed with a pressure sensor, the upper end of the pressure sensor is provided with a second support spring, positioning gear blocks are installed on both sides of the transmission seat, the outer side of one end of the positioning gear block is provided with a first support spring, and the outer side of the first support spring is provided with a guide sleeve.

2. The device for detecting irregular-shaped packaging bags according to claim 1, characterized in that: Both ends of the connecting cross frame are fixedly connected to the two second material guide rollers, and the multiple scanning cameras and fill lights are linearly arranged along the side of the electrical box. The electrical box is electrically connected to the multiple scanning cameras and fill lights, and two adjacent scanning cameras are symmetrically installed relative to the fill lights.

3. The device for detecting irregular-shaped packaging bags according to claim 2, characterized in that: The wheel set consists of a driving wheel and two driven wheels, the output end of the transmission motor is fixedly connected to the driving wheel, the rear ends of the first friction disc and the second friction disc both pass through the mounting box and are fixedly connected to the two driven wheels, the driving wheel is in close contact with the two driven wheels, the two driven wheels have the same rotation direction, and the front ends of the first friction disc and the second friction disc are both provided with a hair layer and a cloth layer.

4. The device for detecting irregular-shaped packaging bags according to claim 3, 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, and the front end of the power connection probe is in contact with the surfaces of the two contact rollers.

5. The device for detecting irregular-shaped packaging bags according to claim 4, characterized in that: The two material guide plates and the adjusting screw are symmetrically installed relative to the protective box. The bottom end of the adjusting screw passes through the protective box and is connected to the material guide plate by a thread. A material guide port is provided on one side of the material guide plate. A raw material bag is provided between the two material guide ports. The raw material bag is guided and transported by two first material guide rollers and a second material guide roller.

6. The device for detecting irregular-shaped packaging bags according to claim 5, characterized in that: 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, and a plurality of positioning teeth are provided on both sides of the transmission seat and the surface of the positioning gear block. The transmission seat is connected to two adjacent positioning gear blocks through tooth meshing, and the positioning gear block is slidably connected to the guide sleeve through a first supporting spring. The positioning box is fixedly connected to two adjacent guide sleeves, and the two adjacent positioning gear blocks are symmetrically installed relative to the transmission seat. The pressure sensor is connected to the positioning box through a second supporting spring.

7. The device for detecting irregular-shaped packaging bags according to claim 6, characterized in that: 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 installed in sequence behind the bag body detection module, and two edge trimmers and multiple edge banding machines are installed in sequence in front of the bag body detection module, and the multiple edge banding machines are located between the two edge trimmers. 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 trimmer and the edge banding machine in sequence.

8. A detection method for the irregular-shaped packaging bag detection device according to claim 7, comprising the following steps: S1: The raw material bags are conveyed, cut, edge-sealed, and formed through the packaging bag production line. 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 on the surface of the guide plate and guided and conveyed by the two first and 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 via the second support spring. Under the support of the transmission seat, the pressure sensor monitors the pressure of the positioning box via the second support spring. The positioning box supports the raw material bag in sequence via the metal sleeve, the positioning gear block, and the second guide roller. The pressure sensor then detects the tightness of the raw material bag by monitoring the pressure value of the raw material bag on the positioning box. S3: When the raw material bag is loose, the cylinder is started, so that the cylinder drives the positioning gear block to move upward through the transmission seat under the support of the installation cover, and then the positioning gear block drives the second guide roller to move upward synchronously through the guide sleeve and the positioning box and push 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 on the inner side of the metal sleeve, thereby reducing the vibration of the second guide roller during rotation; S4: When the raw material bags pass under the connecting cross frame, multiple scanning cameras inside the power box can simultaneously perform light-through-light scanning on the packaging bags while providing fill light, thereby identifying damaged and impurity-laden packaging bags, facilitating the subsequent removal of unqualified packaging bags. The transmission motor is started, and under the support of the mounting box, the transmission motor drives the first friction disc and the second friction disc to rotate synchronously via the wheel set. The front ends of the first friction disc and the second friction disc are provided with a hair layer and a fabric layer, respectively. S5: The first friction disc and the second friction disc can rotate and rub the raw material bag at high speed through the hair layer and the cloth layer while conveying the raw material bag, so as to facilitate the electrostatic treatment of the raw material bag. The two contact rollers are in contact with the electric probe and the raw material bag. Then, the electric probe can monitor the electrostatic charge of the raw material bag after the electrostatic treatment through the two contact rollers, so as to measure the antistatic ability of the packaging bag surface.

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