Paperboard printing bar code deviation automatic detection device

Abstract

The utility model relates to a detection device, in particular to a paperboard printing bar code deviation automatic detection device which comprises a main body, a visual detection piece arranged on the main body and a conveying piece arranged on the main body. The deviation rectifying structure comprises a centering piece which is installed on the main body and matched with the conveying piece. According to the paperboard detection device, the main body is provided with the deviation correcting structure which is tightly matched with the conveying piece, so that the detection problem caused by vibration, deflection or position deviation in the paperboard conveying process can be effectively solved, and the detection accuracy is improved due to tight matching of the centering piece and the conveying piece and transmission connection of a third gear; by means of the technical scheme, the paperboard can be always kept at a stable position and posture in the conveying process, so that detection errors caused by skewing or deviation of the paperboard are effectively avoided, the accuracy and reliability of barcode detection are improved, it is ensured that the printing quality of barcodes meets the standard, and the situation that subsequent recognition is affected by the problems such as deviation, fuzziness or wrong characters of the barcodes is avoided.

Description

Technical Field

[0001] This utility model relates to a detection device, specifically an automatic detection device for misalignment of barcodes printed on cardboard. Background Technology

[0002] Paperboard is a type of thick or thin paperboard material made from fibrous materials (usually plant fibers, such as wood pulp, bamboo pulp, straw pulp, etc.). It has high strength and a certain thickness and is widely used in packaging, printing, construction and furniture. There are many types of paperboard, including corrugated paperboard, white cardboard, grey board, etc. They have different physical properties and appearance characteristics depending on their different uses and production processes.

[0003] The main reason for printing barcodes on cardboard is closely related to its application in logistics, warehousing, sales and production management. A barcode is a graphic identifier that encodes information through a combination of bars and spaces. It can be quickly read by scanning devices and converted into digital or character information. Printing barcodes on cardboard enables rapid identification and management of the cardboard and the products it packages.

[0004] Typically, after barcode printing, cardboard is conveyed one by one to the inspection station of a vision detector via a conveyor belt. The vision detector can quickly and accurately identify the printing quality of the barcode and determine whether there are problems such as misalignment, blurring, or misspelling. However, in the actual conveying process, the running state of the conveyor belt may have a certain impact on the inspection effect of the cardboard. Since the conveyor belt inevitably generates a certain amount of vibration during operation, especially at high speeds, this vibration may cause the cardboard to become skewed or shifted in position on the conveyor belt. In addition, factors such as the surface flatness of the conveyor belt, tension changes, and friction between the cardboard and the conveyor belt may further exacerbate the instability of the cardboard. All these situations may cause the cardboard to fail to maintain an ideal inspection posture when it arrives at the vision detector, thus affecting the accuracy and reliability of barcode detection. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic detection device for barcode misalignment in cardboard printing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic detection device for misalignment of printed barcodes on cardboard includes a main body, a visual inspection component disposed on the main body, and a conveying component disposed on the main body. The main body is provided with a correction structure, which includes:

[0008] A centering member installed on the main body and cooperating with the conveying member, wherein a third gear is provided on the centering member;

[0009] A motor is mounted on the main body, and a transmission shaft is provided on the output shaft of the motor. The transmission shaft is connected to the conveying component and also connected to the reciprocating component mounted on the main body. When the motor is activated, it drives the conveying component to convey the cardboard and simultaneously drives the reciprocating component to move, so that the centering component continuously performs centering and correction actions on the cardboard conveyed on the conveying component.

[0010] An automatic detection device for barcode misalignment in paperboard printing, as described above: the conveying component includes two conveying frames symmetrically arranged on the main body and a plurality of conveying rollers rotatably installed between the two conveying frames, the conveying rollers being used to support and convey the paperboard;

[0011] Each of the several conveying rollers has a first gear at one end, and the several first gears are connected to each other by a transmission belt. The conveying roller located in the middle position has a second gear at one end.

[0012] An automatic detection device for misalignment of barcode printed on cardboard, as described above: the centering component includes two guide slides symmetrically mounted on the main body, two centering rods slidably connected along the length direction of the guide slides, a plurality of rotating pins rotating on the centering rods, and a swinging mechanism connected to the two centering rods;

[0013] The tip of the rotating pin passes through the gap between the two first gears and is used to contact the cardboard on the conveyor roller for position adjustment.

[0014] An automatic detection device for offset of barcode printing on cardboard, as described above: the swing mechanism includes a swing rod that rotates on the main body, a motor installed at one end of the swing rod, a bidirectional lead screw that is disposed on the output shaft of the motor and rotates in the swing rod, and a connecting pin that is threaded to the bidirectional lead screw and slides on the swing rod.

[0015] It also includes a third gear located at the center of the sway bar and a connecting rod whose one end is rotatably connected to the connecting pin, and whose other end is rotatably connected to the center of the centering rod.

[0016] An automatic detection device for barcode misalignment in cardboard printing, as described above, comprises a drive shaft rotatably mounted on the main body, a second bevel gear on the drive shaft, and a fourth gear at one end of the drive shaft, the fourth gear being connected to the second gear via a chain.

[0017] An automatic detection device for offset of barcode printing on cardboard, as described above: the reciprocating component includes a connecting frame mounted on the main body, a linkage mechanism rotatably connected to the connecting frame, and a rack fixed to the linkage mechanism;

[0018] The rack meshes with the third gear, and the connecting frame is rotatably connected to the transmission shaft.

[0019] An automatic detection device for offset of barcode printing on paperboard as described above: the linkage mechanism includes a first bevel gear that rotates on the connecting frame and meshes with the second bevel gear, a drive disk that is fixed to the first bevel gear, a sliding pin located at the eccentric position of the drive disk, and a sliding frame that slides and fits against the drive disk.

[0020] The sliding pin slides within the sliding frame, and the two ends of the sliding frame slide on the connecting bracket. The sliding frame is fixedly connected to the rack.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By incorporating a correction structure on the main body that closely matches the conveying components, the system effectively solves the detection problems caused by vibration, skewing, or positional deviation of the cardboard during transport. The close cooperation between the centering component and the conveying components, along with the transmission connection of the third gear, ensures that the cardboard maintains a stable position and posture during transport. This effectively avoids detection errors caused by cardboard skewing or deviation, improves the accuracy and reliability of barcode detection, ensures that the barcode printing quality meets standards, and prevents issues such as barcode misalignment, blurriness, or misspellings from affecting subsequent identification and management.

[0023] The alignment structure and the conveying component are linked and coordinated. The core advantage of this design is that when the conveying component transports the cardboard, the alignment structure can move synchronously with the conveying action. In other words, the action of the alignment structure is no longer independent of the conveying process, but is closely integrated with and synchronized with the conveying process. This synchronicity ensures that the cardboard can be aligned in real time during the conveying process, thereby always maintaining the correct posture and position. This linked and coordinated design improves the linkage effect of the entire device and avoids the situation where there is a time difference or speed difference between the conveying and alignment actions, which may lead to further aggravation of the position deviation of the cardboard during the conveying process, or even cause problems such as cardboard jamming or damage. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an automatic detection device for barcode misalignment in paperboard printing.

[0025] Figure 2 This is a schematic diagram of the automatic detection device for barcode misalignment on cardboard from another angle.

[0026] Figure 3 A schematic diagram of the structure for removing visual inspection components in an automatic detection device for barcode misalignment on cardboard.

[0027] Figure 4 This is a schematic diagram of the correction structure and conveyor components in an automatic detection device for barcode misalignment in paperboard printing.

[0028] Figure 5 This is a partially enlarged structural diagram of the conveyor component in an automatic detection device for barcode misalignment in paperboard printing.

[0029] Figure 6 This is a schematic diagram of the centering component in an automatic detection device for barcode misalignment in paperboard printing.

[0030] Figure 7 This is a schematic diagram of the centering component in an automatic detection device for barcode misalignment on cardboard, viewed from below.

[0031] Figure 8 This is a schematic diagram of the reciprocating component in an automatic detection device for barcode misalignment in paperboard printing.

[0032] Figure 9 This is a schematic diagram of the swing mechanism in an automatic detection device for barcode misalignment in paperboard printing.

[0033] Figure 10 This is a schematic diagram of the motor and bidirectional lead screw in an automatic detection device for barcode misalignment in cardboard printing.

[0034] Figure 11 This is a schematic diagram of the reciprocating component in an automatic detection device for barcode misalignment in paperboard printing.

[0035] Figure 12 This is a magnified structural diagram of the reciprocating component in an automatic detection device for barcode misalignment in cardboard printing.

[0036] Figure 13 A schematic diagram showing the disassembly of the reciprocating component in an automatic detection device for barcode misalignment in cardboard printing.

[0037] In the diagram: 1. Main body; 2. Vision inspection component; 3. Conveyor frame; 4. Conveyor roller; 5. First gear; 6. Transmission belt; 7. Second gear; 8. Guide slide rod; 9. Centering rod; 10. Rotating pin; 11. Swivel rod; 12. Motor; 13. Double-acting lead screw; 14. Connecting pin; 15. Connecting rod; 16. Third gear; 17. Rack; 18. Sliding frame; 19. Drive disc; 20. Sliding pin; 21. First bevel gear; 22. Connecting frame; 23. Transmission shaft; 24. Second bevel gear; 25. Fourth gear; 26. Motor. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Please see Figures 1-4 In this embodiment of the present invention, an automatic detection device for barcode misalignment in cardboard printing includes a main body 1, a visual inspection component 2 disposed on the main body 1, and a conveying component disposed on the main body 1. The main body 1 is provided with a correction structure, which includes:

[0040] A centering member is installed on the main body 1 and cooperates with the conveying member, and a third gear 16 is provided on the centering member;

[0041] A motor 26 is installed on the main body 1. A transmission shaft 23 is provided on the output shaft of the motor 26. The transmission shaft 23 is connected to the conveying component and also connected to the reciprocating component installed on the main body 1. When the motor 26 is activated, it drives the conveying component to convey the cardboard and simultaneously drives the reciprocating component to move, so that the centering component continuously performs centering and correction actions on the cardboard conveyed on the conveying component.

[0042] In this embodiment, by setting a correction structure on the main body 1, the device can effectively solve the detection problem caused by vibration, skewing or positional deviation of the cardboard during the conveying process. Specifically, the centering component, as an important part of the correction structure, is installed on the main body 1 and closely cooperates with the conveying component. It is connected to the entire transmission system through the third gear 16 and can achieve precise motion control under the drive of the motor 26. The motor 26 serves as a power source, and its output shaft is equipped with a transmission shaft 23. This design not only ensures the effective transmission of power, but also achieves smooth conveying of the cardboard through the connection of the transmission shaft 23 with the conveying component. At the same time, the transmission shaft 23 is also connected to the reciprocating component. This mechanical linkage design allows the reciprocating component to move synchronously when the motor 26 is activated, thereby driving the centering component to perform continuous centering and correction actions on the cardboard being conveyed. This ensures that the conveying and correction of the cardboard are synchronized, avoiding the situation where the conveying and correction cannot move synchronously when the machine is stopped or started due to the use of independent power source control, resulting in poor correction effect of the cardboard.

[0043] This centering and correction action is crucial to ensuring that the cardboard maintains the correct posture at the inspection station of the vision inspection unit 2. Through continuous correction, the cardboard can maintain a stable position and posture during the conveying process, thereby effectively avoiding inspection errors caused by cardboard skewing or offset. In this way, the vision inspection unit 2 can more accurately inspect the barcode on the cardboard, ensuring that the barcode printing quality meets the standards and avoiding problems such as barcode misalignment, blurriness, or misspellings from affecting subsequent identification and management.

[0044] Please see Figure 4 and Figure 5As a further embodiment of this utility model, the conveying component includes two conveying frames 3 symmetrically arranged on the main body 1 and a plurality of conveying rollers 4 rotatably installed between the two conveying frames 3. The conveying rollers 4 are used to support and convey the cardboard.

[0045] Each of the several conveying rollers 4 has a first gear 5 at one end, and the several first gears 5 are connected to each other by a transmission belt 6. The conveying roller 4 located in the middle position has a second gear 7 at one end.

[0046] In this embodiment, two conveyor frames 3 are symmetrically arranged on the main body 1, providing a stable support base for the conveyor rollers 4. Several conveyor rollers 4 are evenly distributed between the two conveyor frames 3. By rotating the installation, the cardboard can always maintain good contact and move smoothly during the conveying process.

[0047] In addition, in order to achieve synchronous transmission between the conveyor rollers 4, a first gear 5 is provided at one end of each conveyor roller 4. These first gears 5 are connected to each other through the transmission belt 6 to form a complete transmission system. When one of the conveyor rollers 4 rotates, the other conveyor rollers 4 can also rotate synchronously through the linkage of the first gear 5 and the transmission belt 6, thereby ensuring the stability and consistency of the cardboard throughout the entire conveying process.

[0048] It is worth noting that a second gear 7 is also provided at one end of the conveyor roller 4 located in the middle position, which provides a key connection point for the power input of the entire conveyor. The second gear 7 can effectively transmit power to the entire conveyor roller 4 system to ensure the normal operation of the conveyor.

[0049] Please see Figures 6-10 As a further embodiment of this utility model, the centering component includes two guide slide rods 8 symmetrically mounted on the main body 1, two centering rods 9 slidably connected along the length direction of the guide slide rods 8, a plurality of rotating pins 10 rotating on the centering rods 9, and a swinging mechanism connected to the two centering rods 9.

[0050] The top of the rotating pin 10 passes through the gap between the two first gears 5 and is used to contact the cardboard on the conveyor roller 4 for position adjustment.

[0051] The swing mechanism includes a swing rod 11 that rotates on the main body 1, a motor 12 installed at one end of the swing rod 11, a bidirectional lead screw 13 that is disposed on the output shaft of the motor 12 and rotates in the swing rod 11, and a connecting pin 14 that is threaded to the bidirectional lead screw 13 and slides on the swing rod 11.

[0052] It also includes a third gear 16 located at the center of the sway bar 11 and a connecting rod 15 with one end rotatably connected to the connecting pin 14, the other end of the connecting rod 15 being rotatably connected to the center of the centering rod 9.

[0053] In this embodiment, two guide slide rods 8 are symmetrically installed on the main body 1, providing a stable sliding track for the centering rod 9. The centering rod 9 is slidably connected along the length of the guide slide rods 8, and can move laterally according to the positional deviation of the cardboard, thereby realizing the centering adjustment of the cardboard. Multiple rotating pins 10 are installed on the centering rod 9, and their tops pass through the gap between the two first gears 5 and directly contact the cardboard on the conveying roller 4. This design enables the rotating pins 10 to center and clamp the cardboard during the cardboard conveying process, satisfying the correction and ensuring that the cardboard will not deviate when it is transported to the visual inspection component 2.

[0054] A sway bar 11 is rotatably mounted on the main body 1, with a motor 12 mounted at one end. A bidirectional lead screw 13 is mounted on the output shaft of the motor 12, rotating within the sway bar 11. A connecting pin 14 is threaded onto the bidirectional lead screw 13 and slides within the sway bar 11. When the motor 12 drives the bidirectional lead screw 13 to rotate, the connecting pin 14 moves along the thread direction of the bidirectional lead screw 13, thereby controlling the distance between the two connecting pins 14. When the distance between the two connecting pins 14 increases, it can... It is suitable for centering and clamping correction of wider cardboard. When the distance between the two connecting pins 14 is reduced, it can be used for centering and clamping correction of narrower cardboard, improving the applicability of correction. When the swing rod 11 swings, it transmits to the centering rod 9 through the connecting rod 15, so that the centering rod 9 can center and clamp, and correct the cardboard. The rotating pin 10 rotates on the centering rod 9. When the rotating pin 10 contacts the cardboard, the friction can drive the rotating pin 10 to rotate on the centering rod 9, reducing the frictional resistance of the cardboard during conveying.

[0055] Please see Figure 8 and Figure 11 As a further embodiment of this utility model, the transmission shaft 23 is rotatably mounted on the main body 1, a second bevel gear 24 is provided on the transmission shaft 23, and a fourth gear 25 is provided at one end of the transmission shaft 23. The fourth gear 25 is connected to the second gear 7 via a chain.

[0056] In this embodiment, the drive shaft 23 is rotatably mounted on the main body 1. This mounting method ensures that the drive shaft 23 can rotate smoothly and steadily under the drive of the motor 26, thereby providing stable power support for the conveying component and the correction structure.

[0057] A fourth gear 25 is provided at one end of the drive shaft 23. The fourth gear 25 is connected to the second gear 7 via a chain. This chain drive method can not only realize long-distance power transmission, but also has the advantages of simple structure, accurate transmission ratio and high transmission efficiency.

[0058] When the motor 26 starts, the power on its output shaft is first transmitted to the transmission shaft 23. Through the transmission of the second bevel gear 24, the power is further distributed to the reciprocating parts connected to it. At the same time, the fourth gear 25 transmits the power to the second gear 7 through the chain, thereby driving the conveyor roller 4 to rotate and realize the smooth conveying of the cardboard.

[0059] Please see Figures 11-13 As a further embodiment of this utility model, the reciprocating component includes a connecting frame 22 mounted on the main body 1, a linkage mechanism rotatably connected to the connecting frame 22, and a rack 17 fixed to the linkage mechanism.

[0060] The rack 17 is meshed with the third gear 16, and the connecting frame 22 is rotatably connected to the transmission shaft 23.

[0061] The linkage mechanism includes a first bevel gear 21 that rotates on the connecting frame 22 and meshes with the second bevel gear 24, a drive disk 19 that is fixed to the first bevel gear 21, a sliding pin 20 located at the eccentric position of the drive disk 19, and a sliding frame 18 that slides against the drive disk 19.

[0062] The sliding pin 20 slides within the sliding frame 18, and both ends of the sliding frame 18 slide on the connecting bracket 22. The sliding frame 18 is fixedly connected to the rack 17.

[0063] In this embodiment, the connecting frame 22 is mounted on the main body 1, providing a stable support foundation for the entire reciprocating component. The linkage mechanism is mounted on the connecting frame 22 via a rotatable connection, and its main function is to convert the power of the drive shaft 23 into the reciprocating motion of the rack 17.

[0064] The rack 17 meshes with the third gear 16 on the centering member. This meshing relationship allows the reciprocating motion of the rack 17 to be directly transmitted to the centering member, thereby driving the centering member to move laterally and achieve centering and correction of the cardboard. The connecting frame 22 is rotatably connected to the drive shaft 23 to ensure that the movement of the drive shaft 23 is not affected and to meet the usage requirements.

[0065] The first bevel gear 21 is rotatably mounted on the connecting frame 22 and meshes with the second bevel gear 24 on the transmission shaft 23. This bevel gear transmission method can not only change the direction of power transmission, but also ensure the stability and efficiency of power transmission. The drive disk 19 is fixedly connected to the first bevel gear 21. When the first bevel gear 21 rotates, the drive disk 19 also rotates.

[0066] A sliding pin 20 is provided at the eccentric position of the drive disk 19. When the drive disk 19 rotates, the sliding pin 20 slides along the inner wall of the sliding frame 18. The sliding frame 18 is fixedly connected to the rack 17, and the sliding frame 18 is also slidably restricted on the connecting frame 22. Therefore, the sliding of the sliding pin 20 will drive the sliding frame 18 and the rack 17 to reciprocate. This reciprocating motion is transmitted to the centering component through the third gear 16, thereby realizing the dynamic adjustment of the centering component.

[0067] With this design, the reciprocating component can effectively convert the power of the drive shaft 23 into the centering and correction action of the centering component. During the entire paperboard conveying process, it can continuously correct the paperboard and improve the detection effect of the barcode printed on the paperboard.

[0068] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An automatic detection device for misalignment of printed barcodes on cardboard, comprising a main body (1), a visual inspection component (2) disposed on the main body (1), and a conveying component disposed on the main body (1), characterized in that, The main body (1) is provided with a correction structure, the correction structure including: A centering member is installed on the main body (1) and cooperates with the conveying member, and a third gear (16) is provided on the centering member. A motor (26) is installed on the main body (1). A transmission shaft (23) is provided on the output shaft of the motor (26). The transmission shaft (23) is connected to the conveying component. The transmission shaft (23) is also connected to the reciprocating component installed on the main body (1). When the motor (26) is activated, it drives the conveying component to convey the cardboard and simultaneously drives the reciprocating component to move, so that the centering component continuously performs centering and correction actions on the cardboard conveyed on the conveying component.

2. The automatic detection device for barcode misalignment in cardboard printing according to claim 1, characterized in that, The conveying component includes two conveying frames (3) symmetrically arranged on the main body (1) and a plurality of conveying rollers (4) rotatably installed between the two conveying frames (3). The conveying rollers (4) are used to support and convey the cardboard. Each of the several conveying rollers (4) is provided with a first gear (5) at one end, and the several first gears (5) are connected to each other by a transmission belt (6). The conveying roller (4) located in the middle position is provided with a second gear (7) at one end.

3. The automatic detection device for barcode misalignment in cardboard printing according to claim 2, characterized in that, The centering component includes two guide slide rods (8) symmetrically mounted on the main body (1), two centering rods (9) slidably connected along the length direction of the guide slide rods (8), a plurality of rotating pins (10) rotating on the centering rods (9), and a swing mechanism connected to the two centering rods (9); The top of the rotating pin (10) passes through the gap between the two first gears (5) for contacting the cardboard on the conveyor roller (4) and adjusting its position.

4. The automatic detection device for barcode misalignment in cardboard printing according to claim 3, characterized in that, The swing mechanism includes a swing arm (11) that rotates on the main body (1), a motor (12) installed at one end of the swing arm (11), a double-acting lead screw (13) that is set on the output shaft of the motor (12) and rotates in the swing arm (11), and a connecting pin (14) that is threaded on the double-acting lead screw (13) and slides on the swing arm (11). It also includes a third gear (16) located at the center of the sway bar (11) and a connecting rod (15) rotatably connected at one end to the connecting pin (14), the other end of the connecting rod (15) being rotatably connected to the center of the centering rod (9).

5. The automatic detection device for barcode misalignment in cardboard printing according to claim 2, characterized in that, The drive shaft (23) is rotatably mounted on the main body (1). A second bevel gear (24) is provided on the drive shaft (23). A fourth gear (25) is provided at one end of the drive shaft (23). The fourth gear (25) is connected to the second gear (7) via a chain.

6. The automatic detection device for barcode misalignment in cardboard printing according to claim 5, characterized in that, The reciprocating component includes a connecting frame (22) mounted on the main body (1), a linkage mechanism rotatably connected to the connecting frame (22), and a rack (17) fixed to the linkage mechanism. The rack (17) meshes with the third gear (16), and the connecting frame (22) is rotatably connected to the transmission shaft (23).

7. The automatic detection device for barcode misalignment in cardboard printing according to claim 6, characterized in that, The linkage mechanism includes a first bevel gear (21) that rotates on the connecting frame (22) and meshes with the second bevel gear (24), a drive disk (19) fixed to the first bevel gear (21), a sliding pin (20) located at the eccentric position of the drive disk (19), and a sliding frame (18) that slides against the drive disk (19). The sliding pin (20) slides within the sliding frame (18), and the two ends of the sliding frame (18) slide on the connecting bracket (22). The sliding frame (18) is fixedly connected to the rack (17).

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