Online quality detection and sorting equipment for bag production

Abstract

The application relates to the technical field of bag production, in particular to online quality detection and sorting equipment for bag production, which comprises a detection table used for bearing a bag main body for detection, a lamp strip used for illuminating the surface of the bag main body is arranged on the detection table; a mounting seat is arranged on the left side of the detection table; a driving motor and a stretching assembly driven by the driving motor are arranged on the mounting seat; and a pneumatic assembly used for supplying gas to the stretching assembly and the inside of the bag main body is arranged on the mounting seat; the stretching assembly is configured to be capable of stretching and sealingly fixing the bag opening of the bag main body from the inside, and the inside of the bag main body is inflated by the pneumatic assembly to make the bag main body swell; the driving motor is configured to drive the stretching assembly to rotate, so that the bag main body in the swelling state is driven to rotate on the detection table, so as to cooperate with the lamp strip to realize all-around visual quality detection.

Description

Technical Field

[0001] This invention relates to the field of FIBC (Flexible Intermediate Bulk Container) production technology, and in particular to an online quality inspection and sorting device for FIBC production. Background Technology

[0002] International standard ton bag pattern. Ton bags, also known as bulk bags, space bags, flexible containers, ton bags, or ton bags, are a type of flexible transport packaging container. They have the advantages of being moisture-proof, dust-proof, radiation-resistant, and sturdy and safe. Moreover, they have sufficient structural strength. Because ton bags are very convenient to load, unload, and handle, their loading and unloading efficiency is significantly improved, and their development has been rapid in recent years. Container bags are generally made of polyester fibers such as polypropylene and polyethylene. After production, FIBCs (Flexible Intermediate Bulk Containers) typically require manual inspection, including visual inspection, sewing quality checks, and airtightness checks (e.g., according to utility model patent application number 202121938479.5). Due to the large size of FIBCs, manual inspection usually requires two people working together to flip them over for inspection. After inspection, manual sorting and stacking are necessary to separate defective from good products. This method is not only extremely time-consuming and labor-intensive, but also increases the intensity of manual inspection, affecting production efficiency. Furthermore, manual airtightness checks can lead to missed inspections, impacting the product yield.

[0003] To address this, an online quality inspection and sorting device for container bag production is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an online quality inspection and sorting device for the production of bulk bags, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an online quality inspection and sorting device for FIBC production, comprising an inspection platform for carrying the FIBC body for inspection, wherein a light strip is provided on the inspection platform for illuminating the surface of the FIBC body; a mounting base is provided on the left side of the inspection platform, wherein a drive motor and a tensioning assembly driven by the drive motor are provided on the mounting base, and a pneumatic assembly for supplying air to the tensioning assembly and the interior of the FIBC body; the tensioning assembly is configured to open and seal the bag opening of the FIBC body from the inside, and inflate the FIBC body by inflating it with air through the pneumatic assembly; the drive motor is configured to drive the tensioning assembly to rotate, thereby causing the inflated FIBC body to rotate on the inspection platform, in conjunction with the light strip for all-round visual quality inspection.

[0006] The upper surface of the testing platform is covered with a layer of gravel, which is used to determine whether the main body of the container bag is leaking air by observing whether the gravel splashes when the main body of the container bag is rotated.

[0007] The detection platform is equipped with barriers on both the front and rear sides, which are equipped with built-in metal detectors for detecting metals on the main body of the container bag when it rotates.

[0008] A sorting and conveying mechanism is provided on the right side of the testing station. The sorting and conveying mechanism includes a conveyor belt and a squeezing roller, which is used to flatten the qualified container bag body and convey it to the designated position.

[0009] Furthermore, the tensioning assembly includes a rotating disk rotatably connected to the side of the mounting base. The rotating disk has equidistant, annular grooves on its side, and a slider is slidably connected within each groove. One end of the slider is fixedly connected to an arc-shaped tensioning plate, and a spring is fixed between the slider and the groove. An air supply pipe is provided inside the annularly distributed tensioning plate, and an air bladder is positioned between the air supply pipe and the tensioning plate. The inner side of the air bladder is fixedly connected to the air supply pipe. When the pneumatic assembly inflates the air bladder, the air bladder expands outward, pushing the tensioning plate radially. Simultaneously, the air bladder overflows and expands from the right-side opening of the tensioning plate, forming a seal at the connection between the tensioning plate and the main body of the container bag.

[0010] Furthermore, the pneumatic assembly includes a mounting groove inside the mounting base, one end of the air supply pipe passing through the mounting groove and fixedly connected to the output shaft of the drive motor; a fixed cylinder is sleeved inside the mounting groove, the fixed cylinder is fixed to the inner wall of the mounting groove, and the air supply pipe is rotatably connected to the fixed cylinder through a sealed bearing; an air inlet pipe connector is fixedly connected to the outside of the fixed cylinder, and an air inlet hole one communicating with the inside of the fixed cylinder is opened on the air supply pipe; a solenoid valve is fixed inside the air supply pipe, and an air inlet hole two communicating with the airbag is opened on one side of the solenoid valve on the air supply pipe; by controlling the opening and closing of the solenoid valve and the air inlet hole two, air can be selectively inflated into the airbag or into the body of the container bag.

[0011] Furthermore, a baffle is fixedly connected to the testing platform, and the light strip is installed on the inner wall of the baffle near the upper end.

[0012] Furthermore, the sorting and conveying mechanism includes a fixed bracket, with rollers rotatably connected to both sides of the fixed bracket, a conveyor belt sleeved on the outside of the rollers, a servo motor fixedly connected to the front of the fixed bracket, and the output shaft of the servo motor fixedly connected to one of the rollers; a squeezing roller is rotatably connected to the left roller of the fixed bracket, and a rubber pad is wrapped around the outside of the squeezing roller for cooperating with the conveyor belt to squeeze the main body of the container bag.

[0013] Furthermore, the gravel layer on the upper surface of the testing platform is a fine sand layer or a quartz sand layer, with a thickness of 2 to 5 millimeters.

[0014] Furthermore, the number of the tension plates is four, which are evenly distributed along the circumference of the rotating disk.

[0015] Furthermore, the airbag is a cylindrical corrugated tubular structure that fits against the outer wall of the air supply pipe when not inflated, and expands radially and extends axially to the right after inflation.

[0016] Furthermore, the air inlet pipe connector is connected to an external air pump, and the start and stop of the air pump and the switching of the solenoid valve are automatically controlled or manually controlled by the controller.

[0017] Furthermore, the metal detectors inside the front and rear side enclosures of the detection platform are electrically connected to the controller and are used to issue an alarm signal when a metal foreign object is detected.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. It integrates appearance inspection, airtightness inspection, metal detection and automatic sorting. One machine can complete multiple inspection tasks, which greatly improves inspection efficiency and accuracy and reduces manual input.

[0019] 2. Through the radial expansion of the tensioning component and the airbag sealing, it can quickly and firmly fix FIBCs of different diameters and achieve the sealing of the bag opening, making it convenient to inflate the bag with air. The operation is simple and reliable.

[0020] 3. The container bag is automatically rotated under the illumination of the light strip by a rotary drive. With the help of the sand and gravel layer on the detection table, the leakage point can be directly identified by observing the sand and gravel splashing. The detection sensitivity is high and no complicated instruments are required.

[0021] 4. The built-in metal detector can simultaneously detect whether there are any residual metal foreign objects (such as broken needles) in the container bag, ensuring product quality and safety.

[0022] 5. Qualified products can be automatically flattened and conveyed to the stacking station, while unqualified products can be manually or automatically rejected, realizing online sorting and improving the automation level of the production line. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a rear view of the overall structure of the present invention; Figure 4 This is a front view of the overall structure of the present invention; Figure 5 For the present invention Figure 2 Enlarged view at point A in the middle; Figure 6 This is a structural view of the testing station and the main body of the container bag of the present invention; Figure 7 For the present invention Figure 6 Top view; Figure 8 This is a structural view of the pneumatic component and the tensioning component of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Testing table; 11. Baffle; 12. LED strip; 2. Mounting base; 21. Drive motor; 3. Fixed bracket; 31. Servo motor; 32. Conveyor belt; 33. Extrusion roller; 4. Container bag body; 5. Tensioning assembly; 51. Rotating disc; 52. Tensioning plate; 53. Slide groove; 54. Airbag; 55. Air supply pipe; 56. Air inlet pipe connector; 57. Sliding block; 58. Spring; 6. Pneumatic components; 61. Bearings; 62. Mounting slots; 63. Fixing cylinders; 64. Air inlet one; 65. Solenoid valve; 66. Air inlet two. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 8 This embodiment provides an online quality inspection and sorting device for container bag production.

[0028] I. Overall Structure The equipment includes a testing platform 1. The upper surface of the testing platform 1 is covered with a layer of fine sand (gravel) approximately 3 mm thick. A mounting base 2 is fixedly connected to the left side of the testing platform 1, and a drive motor 21 is fixed to the upper left side of the mounting base 2. A sorting and conveying mechanism is provided on the right side of the testing platform 1, including a fixed bracket 3, a conveyor belt 32, a servo motor 31, and a squeezing roller 33. Baffles 11 are provided around the testing platform 1, and LED light strips 12 are installed on the inner sidewalls of the baffles 11.

[0029] II. Tensioning Components and Pneumatic Components The tensioning assembly 5 mainly includes a rotating disk 51, a tensioning plate 52, a slider 57, a spring 58, an air bladder 54, and an air supply pipe 55.

[0030] The rotating disk 51 is rotatably connected to the right side of the mounting base 2, and its center is connected to the output shaft of the drive motor 21 through an air supply pipe 55. Four radial grooves 53 are equally spaced in a ring on the right side of the rotating disk 51. A slider 57 is slidably installed in each groove 53. An arc-shaped support plate 52 is fixed to the outer end of the slider 57. A spring 58 is connected between the slider 57 and the inner end of the groove 53, so that the support plate 52 is in a retracted state when it is not inflated.

[0031] Four or more sets of tension plates 52, the number of which can be customized according to usage requirements, enclose an internal space containing an air supply pipe 55. The air supply pipe 55 passes through the rotating disk 51 and is fixedly connected to the output shaft of the drive motor 21. A cylindrical corrugated air bladder 54 is fitted over the air supply pipe 55. The inner side of the air bladder 54 is sealed and fixed to the air supply pipe 55, while the outer side contacts the inner wall of the tension plate 52.

[0032] The pneumatic assembly 6 includes a mounting groove 62 formed inside the mounting base 2, a fixed cylinder 63 fixed inside the mounting groove 62, and an air supply pipe 55 rotatably connected to the fixed cylinder 63 via a sealed bearing 61. An air inlet connector 56 is connected to the fixed cylinder 63, and an air inlet hole 64 is formed on the air supply pipe 55 to allow external gas to enter the air supply pipe 55. A solenoid valve 65 is installed inside the air supply pipe 55, dividing the air supply pipe 55 into left and right sections. The left section (the side closer to the air inlet) is connected to the airbag 54 via an air inlet hole 66.

[0033] III. Working Principle The operator initially places the bag opening of the main body 4 of the container bag onto the outside of the tension plate 52 in its closed state, and holds the edge of the bag opening with his hand.

[0034] The external air pump is activated, and compressed air enters the fixed cylinder 63 through the air inlet connector 56, and then enters the air delivery pipe 55 through the first air inlet 64. At this time, the solenoid valve 65 is closed, and gas can only enter the airbag 54 through the second air inlet 66. The airbag 54 inflates and pushes the tension plate 52 radially outward, causing the tension plate 52 to overcome the tension of the spring 58 and slide outward along the slide groove 53, thereby opening and fixing the bag opening. The airbag 54 continues to inflate, and the right side of its corrugated structure overflows from the right opening of the tension plate 52 and expands outward, sealing the gap between the tension plate 52 and the bag opening.

[0035] After sealing the bag opening, close the valve at the second air inlet 66 (or switch via a solenoid valve), and open the solenoid valve 65 to allow gas to continue flowing to the right through the air supply pipe 55 into the body of the container bag 4, causing the body of the container bag 4 to expand to full.

[0036] Stop inflation, start drive motor 21, drive air supply pipe 55 and rotating disk 51 to rotate, which in turn drives support plate 52 and container bag body 4 to rotate slowly (rotation speed of about 5 to 10 revolutions per minute). The operator stands in front of inspection table 1 and observes the surface of container bag body 4 under the illumination of light strip 12 to check for damage, stains, sewing defects, etc.

[0037] During rotation, if there are air leaks on the surface of the main body 4 of the container bag, the leaking airflow will blow the sand and gravel layer on the surface of the detection table 1, causing the sand and gravel at the corresponding position to splash, and the operator can immediately find the location of the air leak.

[0038] At the same time, the metal detectors embedded in the front and rear side enclosures of the detection platform 1 scan the rotating container bag body 4. If a metal foreign object (such as a broken needle, metal shavings, etc.) is detected, the controller will issue an audible and visual alarm.

[0039] After the test is completed, the inflation is turned off and the exhaust valve is opened (at the air inlet connector 56 or an exhaust port is provided), and the gas inside the airbag 54 and the main body of the container bag 4 is discharged. The spring 58 pulls the tension plate 52 back to its original position, and the bag opening is released. The operator removes the main body of the container bag 4. If it is not qualified, it is put into the waste bin; if it is qualified, the bag opening is aligned with the gap between the compression roller 33 and the conveyor belt 32, the servo motor 31 is started, the conveyor belt 32 runs, and the compression roller 33 and the conveyor belt 32 together flatten the main body of the container bag 4 and transport it to the stacking station.

[0040] In other embodiments, the gravel layer can be made of quartz sand, fine sand, or other granular materials, and its thickness is adjustable. The number of support plates can be selected as three or five depending on the diameter of the container bag. The metal detector can be equipped with multiple probes to improve detection accuracy. The equipment can be integrated into an automated production line, automatically loading, unloading, and sorting bags using sensors and robotic arms.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An online quality inspection and sorting device for the production of container bags, comprising an inspection table (1) for inspecting the container bag body (4), characterized in that, The inspection platform (1) is equipped with a light strip (12) for illuminating the surface of the bulk bag body (4); a mounting base (2) is provided on the left side of the inspection platform (1), and a drive motor (21) and a tensioning assembly (5) driven by the drive motor (21) are provided on the mounting base (2), as well as a pneumatic assembly (6) for supplying air to the tensioning assembly (5) and the bulk bag body (4); the tensioning assembly (5) is configured to open and seal the bag opening of the bulk bag body (4) from the inside, and inflate the bulk bag body (4) by inflating it with air through the pneumatic assembly (6); the drive motor (21) is configured to drive the tensioning assembly (5) to rotate, thereby driving the bulk bag body (4) in the inflated state to rotate on the inspection platform (1) to cooperate with the light strip (12) for all-round visual quality inspection; The upper surface of the testing platform (1) is covered with a layer of gravel, which is used to determine whether the main body of the container bag (4) is leaking air by observing whether the gravel splashes when the container bag body (4) rotates. The front and rear sides of the detection platform (1) are equipped with enclosures with built-in metal detectors for metal detection when the container bag body (4) rotates. A sorting and conveying mechanism is provided on the right side of the testing station (1). The sorting and conveying mechanism includes a conveyor belt (32) and a squeezing roller (33), which is used to flatten the qualified container bag body (4) and convey it to the designated position.

2. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, The tensioning assembly (5) includes a rotating disk (51) rotatably connected to the side of the mounting base (2). The side of the rotating disk (51) is provided with grooves (53) at equal intervals in an annular shape. A slider (57) is slidably connected in the grooves (53). One end of the slider (57) is fixedly connected to a tensioning plate (52) with an arc-shaped structure. A spring (58) is fixed between the slider (57) and the groove (53). An air supply pipe is provided on the inner side of the tensioning plate (52) which is distributed at equal intervals in an annular shape. (55) An air bladder (54) is provided between the air supply pipe (55) and the support plate (52). The inner side of the air bladder (54) is fixedly connected to the air supply pipe (55). When the pneumatic component (6) inflates the air bladder (54), the air bladder (54) expands outward and pushes the support plate (52) to expand radially. At the same time, the air bladder (54) overflows from the right opening of the support plate (52) and expands, forming a seal at the connection between the support plate (52) and the bag opening of the bulk bag body (4).

3. The online quality inspection and sorting equipment for container bag production according to claim 2, characterized in that, The pneumatic assembly (6) includes a mounting groove (62) inside the mounting base (2), one end of the air supply pipe (55) passes through the mounting groove (62) and is fixedly connected to the output shaft of the drive motor (21); a fixed cylinder (63) is sleeved inside the mounting groove (62), the fixed cylinder (63) is fixed to the inner wall of the mounting groove (62), and the air supply pipe (55) is rotatably connected to the fixed cylinder (63) through a sealed bearing (61); an air inlet pipe is fixedly connected to the outside of the fixed cylinder (63). The head (56) and the air supply pipe (55) are provided with an air inlet hole (64) that communicates with the inside of the fixed cylinder (63); a solenoid valve (65) is fixed inside the air supply pipe (55), and an air inlet hole (66) that communicates with the airbag (54) is provided on one side of the solenoid valve (65) on the air supply pipe (55); by controlling the opening and closing of the solenoid valve (65) and the air inlet hole (66), the airbag (54) can be selectively inflated or the container bag body (4) can be inflated.

4. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, A baffle (11) is fixedly connected to the testing platform (1), and a light strip (12) is installed on the inner wall of the baffle (11) near the upper end.

5. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, The sorting and conveying mechanism includes a fixed bracket (3), with rollers rotatably connected to both sides of the fixed bracket (3), and a conveyor belt (32) sleeved on the outside of the rollers. A servo motor (31) is fixedly connected to the front side of the fixed bracket (3), and the output shaft of the servo motor (31) is fixedly connected to one of the rollers. A squeezing roller (33) is rotatably connected to the left roller of the fixed bracket (3), and a rubber pad is wrapped around the outside of the squeezing roller (33) for squeezing the main body (4) of the container bag in cooperation with the conveyor belt (32).

6. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, The upper surface of the testing platform (1) is covered with a layer of fine sand or quartz sand, with a thickness of 2 to 5 mm.

7. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, The number of the tension plates (52) is four, which are evenly distributed along the circumference of the rotating disk (51).

8. The online quality inspection and sorting equipment for container bag production according to claim 2, characterized in that, The airbag (54) is a cylindrical corrugated tubular structure. When it is not inflated, it fits against the outer wall of the air supply pipe (55). When inflated, it expands radially and extends axially to the right.

9. The online quality inspection and sorting equipment for container bag production according to claim 3, characterized in that, The air inlet pipe connector (56) is connected to an external air pump. The start and stop of the air pump and the switching of the solenoid valve (65) are controlled automatically or manually by the controller.

10. The online quality inspection and sorting equipment for container bag production according to claim 1, characterized in that, The metal detectors inside the front and rear enclosures of the detection station (1) are electrically connected to the controller and are used to issue an alarm signal when a metal foreign object is detected.

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