Food packaging bag detection device

Abstract

The utility model discloses a food packaging bag detection device which is characterized in that a first conveying belt is arranged between two side frames, L-shaped supporting plates are installed on the two sides of the upper surfaces of the two side frames, side plates are jointly installed at the ends of the two L-shaped supporting plates, and a second conveying belt is arranged between the two side plates; the outer surfaces of the side frame and the side plate are rotationally connected with a first connecting shaft and a second connecting shaft respectively, and the first connecting shaft and the second connecting shaft are connected with driving rollers of the first conveying belt and the second conveying belt respectively; a driving mechanism is arranged on the outer sides of the side frame and the side plate and used for driving the first connecting shaft and the second connecting shaft to rotate reversely at the same time. Whether the food packaging bag leaks air or not can be detected by observing the condition of a numerical value detected by the pressure sensor, manual intervention is reduced, the device can automatically detect the food packaging bag on an assembly line, the risk of missing detection is avoided, and the problems in the production process can be comprehensively known.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging equipment, in particular to a food packaging bag detection device. Background Art

[0002] In food production, in order to increase the shelf life and ensure the health of food, nitrogen or carbon dioxide is usually filled into the packaging bag to create anoxic conditions and inhibit bacterial growth. Therefore, the sealing test of food packaging bags is very important. It is an important step to ensure the freshness of food, avoid food spoilage, meet hygiene standards and improve product quality.

[0003] The Chinese patent with publication number CN216524653U discloses a food packaging bag leakage detection device. The device detects whether the food packaging bag is leaking by setting a pressure component to naturally squeeze the food packaging bag. If the food packaging bag is not leaking, the pressure plate will be supported so that the pull rod will not drop. If the food packaging bag is leaking, the pull rod will gradually move downward. By observing the change in the position of the indicator needle pointing to the marking line, the leakage of the packaging bag can be known.

[0004] However, the above patent can only conduct manual inspection on food packaging bags one by one, which is suitable for sample inspection. However, the quality and safety of food is of vital importance, which is related to the corporate image and the health and safety of consumers. Large enterprises have huge food output every day, and sample inspection only involves a small number of products, which cannot fully represent the quality of products in the entire batch or production line. There is a risk of missed inspections, and it is impossible to fully understand the problems in the production process. In addition, manual inspection requires a lot of manpower, material resources and time, and the cost is high, which has an adverse impact on the production and operation of the enterprise. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a food packaging bag detection device.

[0006] The utility model provides the following technical solutions: a food packaging bag detection device, comprising two side frames, a first conveyor belt is arranged between the two side frames, L-shaped support plates are installed on both sides of the upper surface of the two side frames, the ends of the two L-shaped support plates are commonly installed with side plates, a second conveyor belt is arranged between the two side plates, the outer surfaces of the side frames and the side plates are respectively rotatably connected with a first connecting shaft and a second connecting shaft, and the first connecting shaft and the second connecting shaft are respectively connected with the driving rollers of the first conveyor belt and the second conveyor belt. A driving mechanism is arranged on the outer side of the side frames and the side plates, and the driving mechanism is used to drive the first connecting shaft and the second connecting shaft to rotate in opposite directions at the same time. A plurality of pressure sensors are evenly installed on the outer surface of the second conveyor belt, a telescopic rod is installed on the outer surface of the pressure sensor, a top plate is installed on the end of the telescopic rod, a spring is sleeved on the outer surface of the telescopic rod, and the two ends of the spring are respectively in contact with the pressure sensor and the top plate, a guide rod is installed on the outer surface of the top plate, and a pressure plate is installed on the end of the guide rod.

[0007] Preferably, the driving mechanism includes a motor installed on the outside of the side plate, the end of the motor output shaft is connected to a rotating shaft, two first bevel gears are symmetrically sleeved on the outer surface of the rotating shaft, and second bevel gears are installed on the ends of the first connecting shaft and the second connecting shaft, and the first bevel gear is meshingly connected with the second bevel gear.

[0008] Preferably, an annular display screen and a controller are provided on the outer surface of the side panel, and the annular display screen is connected to the pressure sensor in a wireless manner.

[0009] Preferably, an annular limiting slide groove is provided on the opposite surfaces of the two side plates, a yielding slide groove is provided on the inner wall of the lower horizontal groove of the annular limiting slide groove, sliding rods are connected to the outer surfaces of both sides of the top plate, and the ends of the two sliding rods are arranged in the annular limiting slide groove.

[0010] Preferably, a protective cover is installed on the outer surface of the side frame, and the protective cover is arranged on the outer side of the driving mechanism.

[0011] By setting up the protective cover, the outer side of the driving mechanism can be shielded, reducing the occurrence of mechanical injuries and improving the safety of equipment use.

[0012] Preferably, a fixing block is installed on the outer surface of the side frame, and the end of the rotating shaft is rotatably connected to the fixing block.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] (1) The utility model can drive the first conveyor belt and the second conveyor belt to rotate simultaneously through the setting of the driving mechanism, and the rotation directions of the first conveyor belt and the second conveyor belt are opposite. Therefore, when the food packaging bag is conveyed on the first conveyor belt, the pressure plate can be in a relatively static state relative to the food packaging bag and circulate on the second conveyor belt. Therefore, the food packaging bag is conveyed on the first conveyor belt at appropriate intervals. When the pressure plate moves to the bottom of the second conveyor belt and corresponds to the food packaging bag, it can be pressed on the upper surface of the food packaging bag under the elastic force of the spring and run synchronously with the food packaging bag. During this process, if the food packaging bag does not leak, the value detected by the pressure sensor remains unchanged. If the food packaging bag leaks, the value detected by the pressure sensor continues to decrease. Therefore, it is only necessary to observe the value detected by the pressure sensor to detect whether the food packaging bag is leaking, thereby reducing manual intervention. In addition, the device can automatically detect the food packaging bags on the assembly line to avoid the risk of missed detection, and can fully understand the problems in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of the utility model;

[0016] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the driving mechanism in the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the second conveyor belt in the utility model;

[0019] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0020] Figure 6 It is a structural schematic diagram of the annular limiting slide groove and the yielding slide groove in the utility model. DETAILED DESCRIPTION

[0021] like Figures 1 to 6 As shown, a food packaging bag detection device includes a side frame 1, a first conveyor belt 2, an L-shaped support plate 3, a side plate 4, a second conveyor belt 5, a first connecting shaft 6, a second connecting shaft 7, a pressure sensor 8, a telescopic rod 9, a top plate 10, a spring 11, a guide rod 12, a pressure plate 13, an annular display screen 14, a controller 15, a driving mechanism 16, a motor 17, a rotating shaft 18, a first bevel gear 19, a second bevel gear 20, an annular limiting slide groove 21, a giving way slide groove 22, a slide rod 23, a protective cover 24 and a fixing block 25.

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figures 1 to 6 As shown, a first conveyor belt 2 is arranged between two side frames 1, L-shaped support plates 3 are installed on both sides of the upper surface of the two side frames 1, and side plates 4 are installed together at the ends of the two L-shaped support plates 3, and a second conveyor belt 5 is arranged between the two side plates 4. The outer surfaces of the side frames 1 and the side plates 4 are rotatably connected with the first connecting shaft 6 and the second connecting shaft 7, respectively, and the first connecting shaft 6 and the second connecting shaft 7 are respectively connected to the driving rollers of the first conveyor belt 2 and the second conveyor belt 5. When the first connecting shaft 6 and the second connecting shaft 7 rotate, the first conveyor belt 2 and the second conveyor belt 5 can be driven to convey. A driving mechanism 16 is arranged on the outer side of the side frame 1 and the side plate 4, and the driving mechanism 16 is used to drive the first connecting shaft 6 and the second connecting shaft 7 to rotate in the opposite direction at the same time. When the first connecting shaft 6 and the second connecting shaft 7 rotate in the opposite direction at the same time, the first conveyor belt 2 and the second conveyor belt 5 can be driven to convey in the opposite direction at the same time.

[0026] A plurality of pressure sensors 8 are evenly installed on the outer surface of the second conveyor belt 5, a telescopic rod 9 is installed on the outer surface of the pressure sensor 8, a top plate 10 is installed on the end of the telescopic rod 9, a spring 11 is sleeved on the outer surface of the telescopic rod 9, both ends of the spring 11 are respectively in contact with the pressure sensor 8 and the top plate 10, a guide rod 12 is installed on the outer surface of the top plate 10, a pressing plate 13 is installed on the end of the guide rod 12, each pressing plate 13 corresponds to a food packaging bag one by one, and in the reverse conveying of the first conveyor belt 2 and the second conveyor belt 5, the two remain in a relatively static state, when the spring 11 pushes the pressing plate 13 to press on the food packaging bag, the pressure sensor 8 can detect the pressure value, if the food packaging bag is not leaking, the value detected by the pressure sensor 8 remains unchanged, if the food packaging bag is leaking, the value detected by the pressure sensor 8 continues to decrease, thereby judging whether the food packaging bag is leaking.

[0027] An annular display screen 14 and a controller 15 are provided on the outer surface of the side panel 4. The annular display screen 14 is connected to the pressure sensor 8 in a wireless manner. The values ​​detected by each pressure sensor 8 can be displayed on the annular display screen 14, and the position of the value display changes accordingly with the movement of the pressure sensor 8. Therefore, the staff can intuitively determine which food packaging bag is leaking, so as to remove it from the assembly line in time.

[0028] The driving mechanism 16 includes a motor 17 installed on the outside of the side plate 4. The end of the output shaft of the motor 17 is connected to a rotating shaft 18. Two first bevel gears 19 are symmetrically sleeved on the outer surface of the rotating shaft 18. The ends of the first connecting shaft 6 and the second connecting shaft 7 are both installed with second bevel gears 20. The first bevel gear 19 is meshed and connected with the second bevel gear 20. The rotating shaft 18 is driven to rotate by starting the motor 17. Since the two first bevel gears 19 are symmetrically arranged and the first bevel gear 19 is meshed with the second bevel gear 20, the first connecting shaft 6 and the second connecting shaft 7 can be driven to rotate in the opposite direction at the same time, and the purpose of driving the first conveyor belt 2 and the second conveyor belt 5 to convey in the opposite direction at the same time is achieved.

[0029] A protective cover 24 is installed on the outer surface of the side frame 1. The protective cover 24 is arranged on the outer side of the driving mechanism 16. Through the setting of the protective cover 24, the outer side of the driving mechanism 16 can be shielded, thereby reducing the possibility of mechanical injuries and improving the safety of equipment use.

[0030] A fixing block 25 is installed on the outer surface of the side frame 1, and the end of the rotating shaft 18 is rotatably connected to the fixing block 25. Through the arrangement of the fixing block 25, the rotating shaft 18 can be made more stable and reliable when rotating.

[0031] The opposite surfaces of the two side plates 4 are provided with annular limiting slots 21, and the inner wall of the annular limiting slots 21 located at the lower horizontal slot is provided with a giving way slot 22. The outer surfaces of both sides of the top plate 10 are connected with slide bars 23, and the ends of the two slide bars 23 are arranged in the annular limiting slots 21. If the pressing plate 13 contacts the food packaging bag during the downward turning process, the food packaging bag will be pushed to shift, affecting the detection effect. Therefore, the setting of the annular limiting slots 21, the giving way slots 22 and the slide bars 23 can adjust the extension and contraction state of the spring 11. When the guide rod 12 drives the pressing plate 13 to move to the top of the food packaging bag in the vertical direction, the sliding rod 23 enters the area of ​​the yielding chute 22. At this time, the spring 11 releases its elastic force, drives the telescopic rod 9 to extend outward, and pushes the pressing plate 13 to contact the food packaging bag from the vertical direction, thereby avoiding the displacement of the food packaging bag.

[0032] The working principle of the utility model is as follows: the side frame 1 is placed in the middle of the assembly line, so that the food packaging bag can be transported to the rear assembly line through the first conveyor belt 2 on the front assembly line, and then the food packaging bag is transported on the assembly line at a fixed interval, and the motor 17 is started to drive the rotating shaft 18 to rotate. Since the two first bevel gears 19 are symmetrically arranged and the first bevel gear 19 and the second bevel gear 20 are meshed with each other, the first connecting shaft 6 and the second connecting shaft 7 can be driven to rotate in the opposite direction at the same time, and the purpose of driving the first conveyor belt 2 and the second conveyor belt 5 to be transported in the opposite direction at the same time is achieved. The assembly line and the first conveyor belt 2 and the second conveyor belt 5 move at the same speed. When the food packaging bag is transported on the first conveyor belt 2, the pressure plate 13 can be pressed on the upper surface of the food packaging bag under the elastic force of the spring 11 and move synchronously with it, and the value detected by the pressure sensor 8 is displayed on the annular display screen 14. It is displayed that if the food packaging bag does not leak during this process, the value detected by the pressure sensor 8 remains unchanged; if the food packaging bag leaks, the value detected by the pressure sensor 8 continues to decrease. Therefore, it is only necessary to observe the value detected by the pressure sensor 8 to detect whether the food packaging bag is leaking, thereby reducing manual intervention. In addition, the device can automatically detect the food packaging bags on the assembly line to avoid the risk of missed detection, and can fully understand the problems in the production process. In addition, due to the limiting effect of the annular limiting groove 21 and the giving way groove 22 on the slide bar 23, when the guide rod 12 drives the pressure plate 13 to move to the top of the food packaging bag in the vertical direction, the slide bar 23 enters the area of ​​the giving way groove 22. At this time, the spring 11 releases the elastic force, drives the telescopic rod 9 to extend outward, and pushes the pressure plate 13 to contact the food packaging bag from the vertical direction, thereby avoiding the displacement of the food packaging bag.

[0033] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A food packaging bag detection device, comprising two side frames (1), characterized in that: A first conveyor belt (2) is arranged between the two side frames (1); L-shaped support plates (3) are installed on both sides of the upper surfaces of the two side frames (1); side plates (4) are installed at the ends of the two L-shaped support plates (3); a second conveyor belt (5) is arranged between the two side plates (4); the outer surfaces of the side frames (1) and the side plates (4) are rotatably connected with a first connecting shaft (6) and a second connecting shaft (7), respectively, and the first connecting shaft (6) and the second connecting shaft (7) are respectively connected to the driving rollers of the first conveyor belt (2) and the second conveyor belt (5); the outer sides of the side frames (1) and the side plates (4) are provided with a driving mechanism ( 16), the driving mechanism (16) is used to drive the first connecting shaft (6) and the second connecting shaft (7) to rotate in opposite directions at the same time; a plurality of pressure sensors (8) are evenly installed on the outer surface of the second conveyor belt (5), a telescopic rod (9) is installed on the outer surface of the pressure sensor (8), a top plate (10) is installed at the end of the telescopic rod (9), a spring (11) is sleeved on the outer surface of the telescopic rod (9), the two ends of the spring (11) are respectively in contact with the pressure sensor (8) and the top plate (10), a guide rod (12) is installed on the outer surface of the top plate (10), and a pressure plate (13) is installed at the end of the guide rod (12).

2. A food packaging bag detection device according to claim 1, characterized in that: The driving mechanism (16) comprises a motor (17) mounted on the outside of the side plate (4); the end of the output shaft of the motor (17) is connected to a rotating shaft (18); two first bevel gears (19) are symmetrically sleeved on the outer surface of the rotating shaft (18); the ends of the first connecting shaft (6) and the second connecting shaft (7) are both mounted with second bevel gears (20); the first bevel gear (19) is meshingly connected with the second bevel gear (20).

3. A food packaging bag detection device according to claim 2, characterized in that: An annular display screen (14) and a controller (15) are provided on the outer surface of the side panel (4), and the annular display screen (14) is connected to the pressure sensor (8) in a wireless manner.

4. A food packaging bag detection device according to claim 3, characterized in that: The opposite surfaces of the two side plates (4) are provided with an annular limiting sliding groove (21), and the inner wall of the annular limiting sliding groove (21) located at the lower horizontal groove is provided with a giving way sliding groove (22), and the outer surfaces of both sides of the top plate (10) are connected with sliding rods (23), and the ends of the two sliding rods (23) are arranged in the annular limiting sliding groove (21).

5. A food packaging bag detection device according to claim 4, characterized in that: A protective cover (24) is installed on the outer surface of the side frame (1), and the protective cover (24) is arranged on the outer side of the driving mechanism (16).

6. A food packaging bag detection device according to claim 5, characterized in that: A fixing block (25) is installed on the outer surface of the side frame (1), and the end of the rotating shaft (18) is rotatably connected to the fixing block (25).

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