A packaging device for detecting and packaging leaks in food packaging bags

Abstract

The present invention discloses a packaging device for detecting and packaging a leaked bag of a food packaging bag, comprising: the first group of conveyor belts comprises a conveyor crawler, a baffle is fixedly arranged on the side of the conveyor crawler, a conveyor belt support rod is fixedly arranged below the conveyor crawler, a laser base is fixedly arranged on one side of the first group of conveyor belts, a base support rod is fixedly arranged below the laser base, a laser shaft is rotatably connected above the laser base, a laser body is rotatably connected above the laser shaft, and an adjustment rotating plate is fixedly connected on the side of the laser body; in the present invention, accurate detection and efficient processing of food packaging bags are achieved through high-precision laser detection technology and automated processing flow, the laser body can accurately irradiate each packaging bag through a flexible adjustment mechanism, and judge whether the packaging bag is leaking through laser reflection, thereby greatly improving the accuracy and efficiency of detection.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging leakage detection equipment, in particular to a leakage detection packaging equipment for food packaging bags. Background Art

[0002] Some existing leak detection devices for food packaging usually only have a single detection mechanism when performing detection. Although some technologies can quickly and non-destructively detect leaks in packaging bags, they may not be able to fully cover all possible leakage scenarios and often some leaks slip through the net. In addition, different food packaging materials and structures have different requirements for detection technology. A single detection mechanism may not be able to adapt to all types of packaging bags, which will cause the equipment to perform poorly when detecting certain types of packaging bags, reducing the accuracy and efficiency of leak detection. Summary of the invention

[0003] The object of the present invention is to provide a packaging device for detecting and packaging food packaging bags for solving the problems mentioned in the above background.

[0004] To achieve the above object, the present invention provides the following technical solution: a leakage detection and packaging device for food packaging bags, comprising: a first group of conveyor belts, a second group of conveyor belts are arranged on the side of the first group of conveyor belts, an inverted hanging detection mechanism is arranged on the side of the second group of conveyor belts, and a third group of conveyor belts are arranged on the side of the inverted hanging detection mechanism;

[0005] The first group of conveyor belts includes a conveyor crawler, a baffle is fixedly provided on the side of the conveyor crawler, a conveyor belt support rod is fixedly provided below the conveyor crawler, a laser base is fixedly provided on one side of the first group of conveyor belts, a base support rod is fixedly provided below the laser base, a laser shaft is rotatably connected above the laser base, a laser body is rotatably connected above the laser shaft, an adjustment rotating plate is fixedly connected to the side of the laser body, and a laser emitting end is rotatably connected to the side of the adjustment rotating plate.

[0006] As a further solution of the present invention: a barrier base is fixedly provided on the other side of the first group of conveyor belts, a supporting inclined plate is fixedly provided below the barrier base, a barrier rod fixing plate is fixedly connected above the barrier base, and a barrier rod is rotatably connected to the side of the barrier rod fixing plate.

[0007] As a further solution of the present invention: a pushing device base is fixedly provided on one side of the second group of conveyor belts, a pushing device is fixedly provided above the pushing device base, a driving motor is fixedly provided above the pushing device, a screw rod is rotatably connected to the side of the driving motor, the other end of the screw rod is rotatably connected to a screw rod support rod, a slide plate is slidably provided on the surface of the screw rod, a connecting plate is fixedly connected below the slide plate, a pushing plate is fixedly provided below the connecting plate, a supporting pull rod is fixedly connected to the other side of the second group of conveyor belts, a unloading plate is rotatably connected to the side of the supporting pull rod, and a first storage box is provided below the unloading plate.

[0008] As a further solution of the present invention: the inverted hanging detection mechanism includes a ring rail support rod arranged on the other side of the second group of conveyor belts, the ring rail is fixedly connected to one end above the ring rail support rod, a base plate is fixedly arranged below the ring rail support rod, a second storage box is fixedly arranged at one end above the base plate, an inner support rod is fixedly arranged on the inner side of the ring rail, a slider is slidably arranged below the ring rail, a clamp adjustment shaft is rotatably connected below the slider, a telescopic rod is rotatably connected below the clamp adjustment shaft, a clamp rotating plate is fixedly connected below the telescopic rod, a clamp rotating plate is rotatably connected to a clamp fixing plate on the side of the clamp fixing plate, a rotating rod is fixedly connected to the side of the clamp fixing plate, and a clamp arm is rotatably connected to the side of the rotating rod.

[0009] As a further solution of the present invention: the first group of conveyor belts, the second group of conveyor belts and the third group of conveyor belts are all composed of the conveyor tracks, the baffles and the conveyor belt support rods, the laser body can be rotated left and right at a certain angle through the laser shaft, the laser emitting end can be adjusted up and down at a certain angle through the adjustment rotating plate, and the laser emitting end checks whether the packaging bag is leaking by emitting laser.

[0010] As a further solution of the present invention: the blocking bar is rotated at a certain angle through the blocking bar fixing plate, and the blocking bar can block the packaging bag from moving on the transmission track, which is convenient for the laser emitting end to perform detection. After the detection is completed, the blocking bar is lifted and released.

[0011] As a further solution of the present invention: the push plate can slide on the surface of the screw rod through the slide plate to push the leaked packaging bag from the transmission track to the unloading plate, and the unloading plate can rotate on the side of the supporting pull rod, so that the packaging bag will slide into the first storage box.

[0012] As a further solution of the present invention: the slider, the clamp adjustment shaft, the telescopic rod, the clamp rotating plate, the clamp fixing plate, the rotating rod and the clamp arm constitute a clamp mechanism, and multiple clamp mechanisms are slid under the ring rail. The ring rail is slightly higher than the second group of conveyor belts and the third group of conveyor belts. The clamp mechanism clamps the packaging bag on the second group of conveyor belts, and then the clamp arm tilts the packaging bag through the clamp rotating plate to observe whether the packaging bag leaks. If it leaks, the clamp arm will be released and the packaging bag will fall into the second storage box. The remaining products will be placed on the third group of conveyor belts through the sliding ring rail.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention realizes accurate detection and efficient processing of food packaging bags through high-precision laser detection technology and automated processing flow. The laser body can accurately irradiate each packaging bag through a flexible adjustment mechanism, and judge whether the packaging bag is leaking by laser reflection, which greatly improves the accuracy and efficiency of detection. The equipment adopts the design of blocking rod in the detection process to ensure that the packaging bag is in a stable state during laser detection, further improving the accuracy of detection. When the packaging bag reaches the base of the blocker, the blocking rod will automatically rotate to temporarily block the movement of the packaging bag, providing a stable environment for laser detection.

[0015] 2. After detecting the leakage of the package, the equipment can quickly and accurately separate the unqualified packaging bags from the conveyor belt, and push them to the unloading plate through the pushing device, and then slide them into the storage box for collection and processing. This process not only reduces the waste of raw materials, but also prevents unqualified products from entering the market.

[0016] 3. The present invention also introduces an inverted hanging detection mechanism, which clamps the packaging bag through a clamp mechanism and puts it in an inverted hanging state to further verify the sealing of the packaging bag. If the packaging bag is sealed completely, the food inside will not fall out; if there is a leakage, the food inside will fall into a designated storage box, thereby realizing dual detection and processing of the leakage problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a leakage detection and packaging device for food packaging bags according to the present invention;

[0018] Figure 2 It is a structural schematic diagram of a laser detection mechanism in a packaging device for detecting leakage of food packaging bags according to the present invention;

[0019] Figure 3 It is a structural schematic diagram of a blocking rod mechanism in a bag leakage detection and packaging device for food packaging bags according to the present invention;

[0020] Figure 4 It is a structural schematic diagram of the side surface of a material pushing mechanism in a leakage detection and packaging device for food packaging bags according to the present invention;

[0021] Figure 5 It is a structural schematic diagram of the front side of a material pushing mechanism in a leakage detection and packaging device for food packaging bags according to the present invention;

[0022] Figure 6 It is a structural schematic diagram of an inverted hanging detection mechanism in a packaging device for detecting leakage of food packaging bags according to the present invention;

[0023] Figure 7 The present invention is a schematic structural diagram of a clamp mechanism and its ring track in a packaging device for detecting and packaging a leaked bag of a food packaging bag.

[0024] In the figure: 1, the first group of conveyor belts; 2, the second group of conveyor belts; 3, the inverted detection mechanism; 4, the third group of conveyor belts; 11, the conveyor crawler; 12, the baffle; 13, the conveyor belt support rod; 14, the laser base; 15, the base support rod; 16, the laser shaft; 17, the laser body; 18, the adjustment plate; 19, the laser emission end; 120, the blocker base; 121, the support inclined plate; 122, the blocker bar fixing plate; 123, the blocker bar; 21, the push device base; 22 , pushing device; 23, driving motor; 24, screw rod; 25, screw rod support rod; 26, slide plate; 27, connecting plate; 28, pushing plate; 29, supporting rod; 210, unloading plate; 211, first storage box; 31, ring rail support rod; 32, ring rail; 33, bottom plate; 34, second storage box; 35, inner support rod; 36, slider; 37, clamp adjustment shaft; 38, telescopic rod; 39, clamp rotating plate; 310, clamp fixing plate; 311, rotating rod; 312, clamp arm. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0027] Reference Figures 1 to 7 In an embodiment of the present invention, a leakage detection and packaging device for food packaging bags comprises: a first group of conveyor belts 1, a second group of conveyor belts 2 are arranged on the side of the first group of conveyor belts 1, an inverted detection mechanism 3 is arranged on the side of the second group of conveyor belts 2, and a third group of conveyor belts 4 are arranged on the side of the inverted detection mechanism 3;

[0028] The first group of conveyor belts 1 includes a conveyor track 11, a baffle 12 is fixedly arranged on the side of the conveyor track 11, a conveyor track support rod 13 is fixedly arranged below the conveyor track 11, a laser base 14 is fixedly arranged on one side of the first group of conveyor belts 1, a base support rod 15 is fixedly arranged below the laser base 14, a laser shaft 16 is rotatably connected above the laser base 14, a laser body 17 is rotatably connected above the laser shaft 16, an adjustment rotating plate 18 is fixedly connected to the side of the laser body 17, and a laser emitting end 19 is rotatably connected to the side of the adjustment rotating plate 18.

[0029] The above solution is adopted: the laser shaft 16 above the laser base 14 and the laser body 17 allow the laser emitting end 19 to adjust the angle as needed, ensuring that the laser can accurately and completely irradiate each food packaging bag. This flexibility enables the equipment to adapt to packaging bags of different sizes and materials, thereby improving the versatility and accuracy of detection.

[0030] A barrier base 120 is fixedly provided on the other side of the first group of conveyor belts 1, a supporting inclined plate 121 is fixedly provided below the barrier base 120, a barrier rod fixing plate 122 is fixedly connected above the barrier base 120, and a barrier rod 123 is rotatably connected to the side of the barrier rod fixing plate 122.

[0031] The above solution is adopted: the blocking rod fixing plate 122 is connected to the blocker base 120 through a fixed connection, providing a stable installation platform for the blocking rod 123, and the blocking rod 123 is rotatably connected to the side of the blocking rod fixing plate 122. This design allows the blocking rod 123 to rotate quickly and accurately when needed, thereby temporarily preventing the food packages on the transmission crawler 11 from continuing to move.

[0032] A pushing device base 21 is fixedly provided on one side of the second group of conveyor belts 2, a pushing device 22 is fixedly provided above the pushing device base 21, a driving motor 23 is fixedly provided above the pushing device 22, a screw rod 24 is rotatably connected to the side of the driving motor 23, the other end of the screw rod 24 is rotatably connected to a screw support rod 25, a slide plate 26 is slidably provided on the surface of the screw rod 24, a connecting plate 27 is fixedly connected below the slide plate 26, a pushing plate 28 is fixedly provided below the connecting plate 27, a supporting pull rod 29 is fixedly connected to the other side of the second group of conveyor belts 2, a blanking plate 210 is rotatably connected to the side of the supporting pull rod 29, and a first storage box 211 is provided below the blanking plate 210.

[0033] The above scheme is adopted: the pushing device 22 fixed above the pushing device base 21 is the core of this design, which is responsible for driving the slide plate 26 to slide along the screw rod 24. The driving motor 23 provides power to the slide plate 26 by rotating the screw rod 24, thereby realizing the precise movement of the push plate 28. This mechanical transmission method ensures the rapidity and accuracy of the pushing action, avoids the tediousness and errors of manual operation, and the fixed connection between the slide plate 26 and the connecting plate 27 and the push plate 28 ensures the continuity and stability of the pushing action. The push plate 28 can directly contact the food packaging on the conveyor belt. Once a leaking package is detected, it can quickly push the problem package away from the conveyor belt.

[0034] The upside-down detection mechanism 3 includes a ring rail support rod 31 arranged on the other side of the second group of conveyor belts 2, a ring rail 32 is fixedly connected to one end above the ring rail support rod 31, a bottom plate 33 is fixedly arranged below the ring rail support rod 31, a second storage box 34 is fixedly arranged at one end above the bottom plate 33, an inner support rod 35 is fixedly arranged on the inner side of the ring rail 32, a slider 36 is slidably arranged below the ring rail 32, a clamp adjustment shaft 37 is rotatably connected below the slider 36, a telescopic rod 38 is rotatably connected below the clamp adjustment shaft 37, a clamp rotating plate 39 is fixedly connected below the telescopic rod 38, a clamp rotating plate 39 is rotatably connected to a clamp fixing plate 310 on the side of the clamp fixing plate 310, a rotating rod 311 is fixedly connected to the side of the clamp fixing plate 310, and a clamp arm 312 is rotatably connected to the side of the rotating rod 311.

[0035] The above solution is adopted: the adjustment of the clamp is mainly completed through the clamp adjustment shaft 37, the telescopic rod 38 and the clamp rotating plate 39. This design allows the clamp to be fine-tuned according to the size and shape of the product to ensure the firm and accurate clamping. The clamp arm 312 is connected to the clamp fixing plate 310 through the rotating rod 311, realizing the opening and closing action of the clamp arm, which is convenient for clamping and releasing suspected leaking products.

[0036] The first group of conveyor belts 1, the second group of conveyor belts 2 and the third group of conveyor belts 4 are all composed of a conveyor track 11, a baffle 12 and a conveyor belt support rod 13. The laser body 17 can be rotated left and right at a certain angle through the laser shaft 16, and the laser emitting end 19 can be adjusted up and down at a certain angle by adjusting the rotating plate 18. The laser emitting end 19 detects whether the packaging bag is leaking by emitting laser.

[0037] The above solution: the introduction of the adjusting rotating plate 18 further enhances the accuracy of laser detection. By adjusting the rotation of the rotating plate 18, the angle of the laser emitting end 19 can be fine-tuned so that the laser can be irradiated onto the packaging bag at the best angle, thereby maximizing the detection effect.

[0038] The blocking rod 123 is rotated at a certain angle through the blocking rod fixing plate 122, and the blocking rod 123 can block the packaging bag from moving on the transmission track 11, which is convenient for the laser emitting end 19 to perform detection. After the detection is completed, the blocking rod 123 is lifted and released.

[0039] The above scheme is adopted: when the food package reaches the detection position, the blocking rod 123 rotates rapidly to temporarily intercept the package, providing a stable and interference-free environment for laser detection. In this way, the laser emitting end 19 can irradiate the packaging bag more accurately and accurately capture the reflected laser signal, thereby determining whether there is a leak in the packaging bag.

[0040] The push plate 28 can slide on the surface of the screw rod 24 through the slide plate 26 to push the leaked packaging bag from the transmission track 11 to the unloading plate 210. The unloading plate 210 rotates on the side of the supporting pull rod 29, and the packaging bag will slide into the first storage box 211.

[0041] The above solution is adopted; the combination of the support rod 29 and the blanking plate 210 provides a smooth channel for removing the problematic package. The blanking plate 210 can rotate on the side of the support rod 29 to guide the problematic package to slide into the first storage box 211. This design not only simplifies the processing flow, but also improves work efficiency, so that the leaking food packaging can be handled in a timely and effective manner.

[0042] The slider 36, the clamp adjustment shaft 37, the telescopic rod 38, the clamp rotating plate 39, the clamp fixing plate 310, the rotating rod 311 and the clamp arm 312 constitute a set of clamp mechanisms. There are multiple sets of clamp mechanisms sliding under the ring track 32. The position of the ring track 32 is slightly higher than the second group of conveyor belts 2 and the third group of conveyor belts 4. The clamp mechanism clamps the packaging bag on the second group of conveyor belts 2, and then the clamp arm 312 tilts the packaging bag through the clamp rotating plate 39 to observe whether the packaging bag is leaking. If it is leaking, the clamp arm 312 will be loosened and the packaging bag will fall into the second storage box 34. The remaining products will be slid onto the third group of conveyor belts 4 through the ring track 32.

[0043] The above scheme is adopted; through the sliding of the slider 36 under the circular rail 32, multiple groups of clamping mechanisms can clamp the packaging bags on the second group of conveyor belts 2 in turn. The design of the circular rail 32 is slightly higher than the second group of conveyor belts 2 and the third group of conveyor belts 4, which not only provides sufficient space for the operation of the clamping mechanism, but also ensures the stability of the packaging bag during the inspection process. Once the clamping mechanism clamps the packaging bag, the clamping arm 312 can tilt the packaging bag through the adjustment of the clamp rotating plate 39. This tilting operation allows the bottom or side of the packaging bag to be more intuitively observed, which is convenient for the inspector to identify whether there is a leak. If the packaging bag leaks, the clamping arm 312 will be quickly released to allow the packaging bag to fall into the second storage box 34, thereby achieving rapid isolation and processing of the leaking product.

[0044] The working principle of the present invention is as follows: first, food packaging is transmitted on the transmission track 11 of the first group of conveyor belts 1, and the baffle 12 ensures that the packaging will not fall or deviate during the transmission process. During the transmission process, the laser body 17 adjusts the angle of the laser emitting end 19 through the laser rotating shaft 16 and the adjusting rotating plate 18, so that it can accurately irradiate each package, and checks whether the packaging bag is leaking by emitting laser. When the package reaches the blocker base 120, the blocking rod 123 rotates through the blocking rod fixing plate 122 to temporarily block the movement of the package on the transmission track 11, providing a stable environment for laser detection. The laser emitted by the laser emitting end 19 is reflected by the packaging bag. If the packaging bag is intact, the laser will be reflected along a predetermined path. If there is a leak in the packaging bag, the reflection path of the laser will change, thereby triggering a leak detection signal. After the detection is completed, the blocking rod 123 is lifted, and the package continues to move to the second group of conveyor belts 2. On the second group of conveyor belts 2, the pushing device 22 is driven by the driving motor 23 , the push plate 28 on the slide plate 26 and the connecting plate 27 is driven to slide by the screw rod 24. If the package is detected to be leaking, the push plate 28 will push the leaking package bag from the transmission crawler 11 to the unloading plate 210. The unloading plate 210 rotates sideways through the supporting rod 29 to make the package bag slide into the first storage box 211 for collection and processing. Then, the package enters the inverted detection mechanism 3. A set of clamp mechanisms are installed on the slider 36 sliding under the ring rail 32. The mechanism includes a clamp adjustment The rotating shaft 37, telescopic rod 38, clamp rotating plate 39, clamp fixing plate 310, rotating rod 311 and clamp arm 312, the clamp mechanism clamps the packaging bag on the second group of conveyor belts 2 and tilts it. Through the adjustment of the clamp rotating plate 39, the packaging bag is in an inverted state. If the packaging bag is sealed completely, the food inside will not fall out; if there is a leak in the packaging bag, the food inside will fall into the second storage box 34. Finally, the inspected packaging continues to be transmitted to the third group of conveyor belts 4 for subsequent processing or packaging.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A packaging device for detecting and packaging food packaging bags, characterized in that: include: A first group of conveyor belts (1), a second group of conveyor belts (2) being arranged on the side of the first group of conveyor belts (1), an inverted hanging detection mechanism (3) being arranged on the side of the second group of conveyor belts (2), and a third group of conveyor belts (4) being arranged on the side of the inverted hanging detection mechanism (3); The first group of conveyor belts (1) comprises a conveyor belt (11), a baffle plate (12) is fixedly arranged on the side of the conveyor belt (11), a conveyor belt support rod (13) is fixedly arranged below the conveyor belt (11), a laser base (14) is fixedly arranged on one side of the first group of conveyor belts (1), a base support rod (15) is fixedly arranged below the laser base (14), a laser shaft (16) is rotatably connected above the laser base (14), a laser body (17) is rotatably connected above the laser shaft (16), an adjustment rotating plate (18) is fixedly connected to the side of the laser body (17), and a laser emitting end (19) is rotatably connected to the side of the adjustment rotating plate (18); A barrier base (120) is fixedly provided on the other side of the first group of conveyor belts (1), a supporting inclined plate (121) is fixedly provided below the barrier base (120), a barrier rod fixing plate (122) is fixedly connected above the barrier base (120), and a barrier rod (123) is rotatably connected to the side of the barrier rod fixing plate (122); A pushing device base (21) is fixedly provided on one side of the second group of conveyor belts (2), a pushing device (22) is fixedly provided above the pushing device base (21), a driving motor (23) is fixedly provided above the pushing device (22), a screw rod (24) is rotatably connected to the side of the driving motor (23), the other end of the screw rod (24) is rotatably connected to a screw rod support rod (25), a slide plate (26) is slidably provided on the surface of the screw rod (24), a connecting plate (27) is fixedly connected below the slide plate (26), a pushing plate (28) is fixedly provided below the connecting plate (27), a supporting pull rod (29) is fixedly connected to the other side of the second group of conveyor belts (2), a blanking plate (210) is rotatably connected to the side of the supporting pull rod (29), and a first storage box (211) is provided below the blanking plate (210); The inverted hanging detection mechanism (3) comprises a ring rail support rod (31) arranged on the other side of the second group of conveyor belts (2); a ring rail (32) is fixedly connected to one end of the ring rail support rod (31); a bottom plate (33) is fixedly arranged below the ring rail support rod (31); a second storage box (34) is fixedly arranged to one end of the bottom plate (33); an inner support rod (35) is fixedly arranged inside the ring rail (32); a slider (36) is slidably arranged below the ring rail (32); a clamp adjustment shaft (37) is rotatably connected to the slider (36); a telescopic rod (38) is rotatably connected to the clamp adjustment shaft (37); a clamp rotating plate (39) is fixedly connected to the clamp fixing plate (310) on the side of the clamp fixing plate (310); a rotating rod (311) is fixedly connected to the side of the rotating rod (311); and a clamp arm (312) is rotatably connected to the side of the rotating rod (311); The first group of conveyor belts (1), the second group of conveyor belts (2) and the third group of conveyor belts (4) are all composed of the conveyor crawler (11), the baffle (12) and the conveyor belt support rod (13); the laser body (17) can be rotated left and right at a certain angle through the laser shaft (16); the laser emitting end (19) can be adjusted up and down at a certain angle through the adjustment rotating plate (18); and the laser emitting end (19) detects whether the packaging bag is leaking by emitting laser; The blocking rod (123) is rotated at a certain angle through the blocking rod fixing plate (122), and the blocking rod (123) can block the packaging bag from moving on the transmission track (11), so as to facilitate the laser emitting end (19) to perform detection. After the detection is completed, the blocking rod (123) is lifted and released; The push plate (28) can slide on the surface of the screw rod (24) via the slide plate (26) to push the leaked packaging bag from the transmission track (11) to the unloading plate (210); the unloading plate (210) rotates on the side of the support rod (29), and the packaging bag slides into the first storage box (211); The slider (36), the clamp adjustment shaft (37), the telescopic rod (38), the clamp rotating plate (39), the clamp fixing plate (310), the rotating rod (311) and the clamp arm (312) constitute a clamp mechanism. Multiple clamp mechanisms slide under the circular rail (32). The circular rail (32) is slightly higher than the second group of conveyor belts (2) and the third group of conveyor belts (4). The clamp mechanism clamps the packaging bag on the second group of conveyor belts (2). Then, the clamp arm (312) tilts the packaging bag through the clamp rotating plate (39) to observe whether the packaging bag leaks. If it leaks, the clamp arm (312) is released and the packaging bag falls into the second storage box (34). If it does not leak, the packaging bag slides through the circular rail (32) and is placed on the third group of conveyor belts (4).

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