A detecting apparatus for printing of a packaging bag

Abstract

The utility model relates to packing bag technical field discloses a kind of detection equipment for packing bag printing, including first conveyor belt and second conveyor belt, the upper top center of first conveyor belt is fixedly connected with first U-shaped frame, in the process of paper packing bag printing surface detection, can be turned over mechanism to detect the turning over of packing bag, to realize the purpose of double-sided detection, avoid since packing bag double side are printed, need staff to manually turn over, and can be turned over mechanism realizes the equidistance adjustment of two turnover frames, so that the other is close or far away, to realize the purpose of facing different diameter packing bag, and in the adjustment process, mainly using four electric push rod main bodies as support, and play the main telescopic effect, by this way, the turning over of packing bag can be effectively sighted, and when facing different size packing bag, turning over operation can be effectively realized.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, specifically to a testing device for packaging bag printing. Background Technology

[0002] In today's highly developed commodity economy, packaging bags, as an important external form of product presentation, not only bear the basic function of protecting goods, but also play a key role in attracting consumers' attention, conveying product information, and shaping brand image. The materials, shapes, and sizes of packaging bags are becoming increasingly diverse, from common plastic bags and paper bags to composite material bags, and different materials have different requirements for printing processes and inks.

[0003] Currently, paper packaging bags often employ double-sided printing to enhance product appeal and information display. Traditional inspection methods primarily rely on manual operation or conveyor belts to move the bags to the other end and drop them to check the printing quality on the other side. This method is extremely inefficient, requiring significant manpower and time for large-scale production, severely hindering production progress. Furthermore, manual operation is prone to errors due to fatigue, negligence, and other factors, leading to the failure to detect some printing defects in a timely manner, resulting in substandard products entering the market. Therefore, those skilled in the art provide a packaging bag printing inspection device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for printing packaging bags, thereby solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a testing device for printing packaging bags, including a first conveyor belt and a second conveyor belt. A first U-shaped frame is fixedly connected to the center of the upper top of the first conveyor belt, and a first printing surface detector for detecting the printed surface of the packaging bag is fixedly connected to the center of the inner top of the first U-shaped frame. The second conveyor belt is located on one side of the first conveyor belt, and a flipping mechanism for flipping the packaging bag is provided on the side opposite to the first conveyor belt and the second conveyor belt. A support mechanism for supporting the flipping mechanism is provided on the side opposite to the first conveyor belt and the second conveyor belt.

[0006] Preferably, a second U-shaped frame is fixedly connected to the center of the upper top of the second conveyor belt, and a second printed surface detector for detecting the flipping of the packaging bag is fixedly connected to the center of the inner top of the second U-shaped frame.

[0007] Preferably, the support mechanism includes two mounting rods fixedly connected to the sides of the first conveyor belt and the second conveyor belt that are close to each other. The two mounting rods located on the same side of the first conveyor belt and the second conveyor belt are fixedly connected to a cross plate. Cross plates are provided on both sides of the outer wall of the first conveyor belt.

[0008] Preferably, a second inner bearing is embedded at the center of each of the two cross plates, and a drive rod is provided at the center of each of the two cross plates. One end of the drive rod is fixedly connected to the interior of the second inner bearing, and the other end of the drive rod is fixedly connected to the interior of the other second inner bearing. The end of the drive rod extends to the outer wall of one of the cross plates.

[0009] Preferably, a drive motor is fixedly connected to the center of the outer wall of the cross plate, and the output end of the drive motor is fixedly connected to the extension end of the drive rod.

[0010] Preferably, the flipping mechanism includes a ring array of spline grooves formed on the outer wall of the drive rod. Two meshing sleeves are symmetrically slidably sleeved on the outer wall of the drive rod corresponding to the position of the spline grooves. A flipping frame is fixedly connected to the outer wall of each of the two meshing sleeves. The outer wall of the flipping frame is provided with a number of insertion interfaces for inserting packaging bags in a ring array.

[0011] Preferably, each of the meshing sleeves has an installation groove on its outer wall, and a first inner bearing is fixedly connected to the outer wall of the meshing sleeve at the position corresponding to the installation groove. A side plate is fixedly connected to the outer wall of each of the two first inner bearings. An electric push rod body is fixedly connected to the upper and lower ends of the side of each of the two cross plates that are close to each other. A side plate is fixedly connected to the telescopic end of each pair of electric push rod bodies.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by incorporating a flipping mechanism and a support mechanism, allows for double-sided inspection of paper packaging bags during the printing process. This avoids the need for manual flipping, as both sides of the bag are printed. Furthermore, the flipping mechanism enables equidistant adjustment of two flipping frames, allowing them to move closer or further apart to accommodate bags of different diameters. During adjustment, four electric push rods provide support and play a crucial role in telescopic movement. This method effectively monitors the flipping of packaging bags and facilitates the flipping operation when dealing with bags of different sizes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a testing device for packaging bag printing. Figure 2This is a schematic diagram of the structure of a packaging bag printing inspection device, showing the separation of the cross plate from the first and second conveyor belts. Figure 3 This is a schematic diagram of the support mechanism in a testing device for printing packaging bags. Figure 4 This is a schematic diagram showing the separation of the flipping mechanism and the support mechanism in a testing device for printing packaging bags.

[0014] In the figure: 1. First conveyor belt; 2. First U-shaped frame; 3. First printed surface detector; 4. Tilting mechanism; 41. Tilting frame; 42. Spline groove; 43. Insertion interface; 44. Electric push rod body; 45. Engaging sleeve; 46. Mounting groove; 47. First inner bearing; 48. Side plate; 5. Support mechanism; 51. Cross plate; 52. Mounting rod; 53. Second inner bearing; 54. Drive motor; 55. Drive rod; 6. Second conveyor belt; 7. Second U-shaped frame; 8. Second printed surface detector. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figures 1-4 As shown, this utility model provides a technical solution: a packaging bag printing inspection device, including a first conveyor belt 1 and a second conveyor belt 6. A first U-shaped frame 2 is fixedly connected to the center of the upper top of the first conveyor belt 1. A first printing surface detector 3 for inspecting the printed surface of the packaging bag is fixedly connected to the center of the inner top of the first U-shaped frame 2. The second conveyor belt 6 is located on one side of the first conveyor belt 1. A flipping mechanism 4 for flipping the packaging bag is provided on the side opposite to the first conveyor belt 1 and the second conveyor belt 6. A support mechanism 5 for supporting the flipping mechanism 4 is provided on the side opposite to the first conveyor belt 1 and the second conveyor belt 6. A second U-shaped frame 7 is fixedly connected to the center of the upper top of the second conveyor belt 6. A second printing surface detector 8 for inspecting the printed surface of the packaging bag after flipping is fixedly connected to the center of the inner top of the second U-shaped frame 7.

[0017] It should be noted that the first printing surface detector 3 installed on the first conveyor belt 1 can quickly detect the printing quality of the front side of the packaging bag passing below it, and promptly detect defects in the front printing, such as blurry text and pattern misalignment, to ensure that the front printing quality meets the standards. The flipping mechanism 4 is located on the side opposite to the first conveyor belt 1 and the second conveyor belt 6, and can accurately flip the packaging bag after it has been detected by the first printing surface detector 3, in preparation for subsequent detection of the printing on the back of the packaging bag. The support mechanism 5 provides stable support for the flipping mechanism 4, ensuring that the flipping action is smooth and reliable, and avoiding the packaging bag's position shift or damage due to unstable flipping. The second printing surface detector 8 on the second conveyor belt 6 can detect the printing quality on the back of the packaging bag after it has been flipped, further ensuring the overall printing quality of the packaging bag.

[0018] As one implementation method in this embodiment, please refer to Figures 2-4 As shown, the support mechanism 5 includes two mounting rods 52 fixedly connected to the side of the first conveyor belt 1 and the second conveyor belt 6 that are close to each other. The two mounting rods 52 located on the same side of the first conveyor belt 1 and the second conveyor belt 6 are fixedly connected to a cross plate 51. A cross plate 51 is provided on both sides of the outer wall of the first conveyor belt 1.

[0019] It should be noted that the two mounting rods 52 are respectively fixed on the sides of the first conveyor belt 1 and the second conveyor belt 6 that are close to each other. This layout makes the support points reasonably distributed, providing balanced support for the flipping mechanism 4. It effectively prevents the flipping mechanism 4 from shaking or tilting due to uneven force during operation, ensuring the accuracy and stability of the flipping action. The two mounting rods 52 on the same side are jointly fixed to the cross plate 51. The design of the cross plate 51 increases the support area and further improves the stability of the support. Moreover, the cross plates 51 are set on both sides of the outer wall of the first conveyor belt 1, forming a comprehensive support system, which greatly enhances the load-bearing capacity of the entire support mechanism 5. When the flipping mechanism 4 frequently performs the flipping operation of the packaging bag, the support mechanism 5 can withstand the various forces generated by the flipping, maintain the stability of its own structure, and will not loosen or deform due to long-term use. This not only extends the service life of the support mechanism 5, but also ensures that the flipping mechanism 4 can work continuously and stably, thereby ensuring the smooth operation of the front and back inspection process of the packaging bag, improving the overall inspection efficiency and the reliability of equipment operation.

[0020] As one implementation method in this embodiment, please refer to Figures 2-4As shown, a second inner bearing 53 is embedded in the center of each of the two cross plates 51, and a drive rod 55 is provided in the center of each of the two cross plates 51. One end of the drive rod 55 is fixedly connected to the interior of the second inner bearing 53, and the other end of the drive rod 55 is fixedly connected to the interior of the other second inner bearing 53. The end of the drive rod 55 extends to the outer wall of one of the cross plates 51. A drive motor 54 is fixedly connected to the center of the outer wall of the cross plate 51, and the output end of the drive motor 54 is fixedly connected to the extended end of the drive rod 55.

[0021] It should be noted that the second inner bearing 53 embedded at the center of the two cross plates 51 closely cooperates with the drive rod 55, providing stable and flexible rotational support for the drive rod 55. The second inner bearing 53 can effectively reduce the frictional resistance when the drive rod 55 rotates, reduce energy loss, and make the drive rod 55 rotate more smoothly, thereby improving the execution efficiency of the entire flipping action. The drive motor 54 is fixed at the center of the outer wall of the cross plate 51, and its output end is connected to the extension end of the drive rod 55. This design realizes efficient power transmission. After the drive motor 54 is started, it can accurately control the rotation speed and angle of the drive rod 55, thereby accurately driving the flipping mechanism 4 to perform the flipping operation of the packaging bag. Whether it is a large-scale flipping in a rapid detection scenario or a small angle adjustment in a fine detection scenario, it can be easily achieved. The two cross plates 51 work together to further enhance the reliability of support and transmission, enabling the entire support mechanism 5 to operate stably for a long time, providing a strong guarantee for the continuous and efficient operation of the testing equipment for packaging bag printing.

[0022] As one implementation method in this embodiment, please refer to Figure 3 and Figure 4 As shown, the flipping mechanism 4 includes a ring array of spline grooves 42 formed on the outer wall of the drive rod 55. Two meshing sleeves 45 are symmetrically slidably sleeved on the outer wall of the drive rod 55 corresponding to the position of the spline grooves 42. A flipping frame 41 is fixedly connected to the outer wall of each of the two meshing sleeves 45. Several insertion interfaces 43 for inserting packaging bags are formed on the outer wall of the flipping frame 41 in a ring array. An installation groove 46 is formed on the outer wall of each meshing sleeve 45. A first inner bearing 47 is fixedly connected to the outer wall of the meshing sleeve 45 corresponding to the position of the installation groove 46. Side plates 48 are fixedly connected to the outer walls of the two first inner bearings 47. Electric push rod bodies 44 are fixedly connected to the upper and lower ends of the two cross plates 51 on the side that are close to each other. The telescopic ends of every two electric push rod bodies 44 are jointly fixedly connected to the side plates 48.

[0023] It should be noted that the spline grooves 42 of the annular array on the outer wall of the drive rod 55 are precisely matched with the meshing sleeve 45, so that the meshing sleeve 45 can slide stably and mesh tightly on the drive rod 55, ensuring the accuracy and stability of power transmission, avoiding slippage, and ensuring accurate flipping action. The flipping frame 41 fixed on the outer wall of the two meshing sleeves 45 has several insertion ports 43 in an annular array on it, which can simultaneously insert multiple packaging bags, realizing batch flipping operation, greatly improving detection efficiency, and meeting the needs of large-scale production. The electric push rod body 44 fixed on the two cross plates 51 is connected to the side plate 48. Through the extension and retraction of the electric push rod body 44, the position of the flipping frame 41 can be precisely controlled, and it can be flexibly adjusted according to different packaging bag specifications and detection requirements.

[0024] Working principle: The paper packaging bag is first conveyed by the first conveyor belt 1. When it reaches the bottom of the first U-shaped frame 2, the first printing surface detector 3 detects the printing surface. Then, the support mechanism 5 plays its role. Two mounting rods 52 are fixed on the side of the first conveyor belt 1 and the second conveyor belt 6 that are close to each other. The two mounting rods 52 on the same side are connected to the cross plate 51 to provide stable support for the flipping mechanism 4. The second inner bearing 53 at the center of the two cross plates 51 fixes the drive rod 55. The drive motor 54 drives the drive rod 55 to rotate. In the flipping mechanism 4, the spline groove 42 on the outer wall of the drive rod 55 cooperates with the meshing sleeve 45, so that the meshing sleeve 45 can slide stably. The flipping frame 41 on it is inserted into the packaging bag through the insertion interface 43. The electric push rod body 44 is fixed at the upper and lower ends of the two cross plates 51 on the side close to each other. The telescopic end is connected to the side plate 48. The side plate 48 is connected to the meshing sleeve 45 through the first inner bearing 47. By the extension and retraction of the four electric push rod bodies 44, the two flipping frames 41 can be adjusted at equal distances to make them closer or farther away from each other to adapt to packaging bags of different diameters. The drive rod 55 rotates to drive the flipping frame 41 and the packaging bag to flip over. After the packaging bag is flipped over, it is transported by the second conveyor belt 6 to the bottom of the second U-shaped frame 7. The second printing surface detector 8 detects the other side of it. This design realizes double-sided detection, avoids manual flipping by the staff, and can effectively handle the flipping operation of packaging bags of different sizes.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A testing device for printing packaging bags, comprising a first conveyor belt (1) and a second conveyor belt (6), characterized in that: A first U-shaped frame (2) is fixedly connected to the center of the top end of the first conveyor belt (1). A first printing surface detector (3) for detecting the printing surface of the packaging bag is fixedly connected to the center of the inner top end of the first U-shaped frame (2). The second conveyor belt (6) is located on one side of the first conveyor belt (1). A flipping mechanism (4) for flipping the packaging bag is provided on the side opposite to the first conveyor belt (1) and the second conveyor belt (6). A support mechanism (5) for supporting the flipping mechanism (4) is provided on the side opposite to the first conveyor belt (1) and the second conveyor belt (6).

2. The testing equipment for printing packaging bags according to claim 1, characterized in that: A second U-shaped frame (7) is fixedly connected to the center of the upper top of the second conveyor belt (6), and a second printing surface detector (8) for detecting the flipping of the packaging bag is fixedly connected to the center of the inner top of the second U-shaped frame (7).

3. The testing equipment for packaging bag printing according to claim 1, characterized in that: The support mechanism (5) includes two mounting rods (52) fixedly connected to the first conveyor belt (1) and the second conveyor belt (6) on the side close to each other. The two mounting rods (52) located on the same side of the first conveyor belt (1) and the second conveyor belt (6) are fixedly connected to a cross plate (51). The cross plates (51) are provided on both sides of the outer wall of the first conveyor belt (1).

4. The testing equipment for printing packaging bags according to claim 3, characterized in that: A second inner bearing (53) is embedded in the center of each of the two cross plates (51), and a drive rod (55) is provided in the center of each of the two cross plates (51). One end of the drive rod (55) is fixedly connected to the interior of the second inner bearing (53), and the other end of the drive rod (55) is fixedly connected to the interior of the other second inner bearing (53). The end of the drive rod (55) extends to the outer wall of one of the cross plates (51).

5. The testing equipment for packaging bag printing according to claim 4, characterized in that: A drive motor (54) is fixedly connected to the center of the outer wall of the cross plate (51), and the output end of the drive motor (54) is fixedly connected to the extension end of the drive rod (55).

6. The testing equipment for packaging bag printing according to claim 3, characterized in that: The flipping mechanism (4) includes a spline groove (42) in a ring array on the outer wall of the drive rod (55). Two meshing sleeves (45) are symmetrically slidably sleeved on the outer wall of the drive rod (55) corresponding to the position of the spline groove (42). A flipping frame (41) is fixedly connected to the outer wall of each of the two meshing sleeves (45). The outer wall of the flipping frame (41) has a number of insertion interfaces (43) for inserting packaging bags in a ring array.

7. The testing equipment for packaging bag printing according to claim 6, characterized in that: Each of the meshing sleeves (45) has an installation groove (46) on its outer wall. A first inner bearing (47) is fixedly connected to the outer wall of the meshing sleeve (45) at the position corresponding to the installation groove (46). A side plate (48) is fixedly connected to the outer wall of each of the two first inner bearings (47). An electric push rod body (44) is fixedly connected to the upper and lower ends of the two cross plates (51) on the side that are close to each other. A side plate (48) is fixedly connected to the telescopic end of each of the two electric push rod bodies (44).

Images