A printing inspection device

Abstract

This invention relates to the field of printing equipment and discloses a printed matter inspection device, which includes a belt drive mechanism, an inspection mechanism, and a paper receiving mechanism. The belt drive mechanism is used to transport workpieces and includes a support, a belt, a drive shaft, and a first transmission shaft. The drive shaft and the first transmission shaft are spaced apart and rotatably mounted on the support. The belt is wound around the drive shaft and the first transmission shaft. The position of the first transmission shaft relative to the support is adjustable to tension the belt. The inspection mechanism is located above the belt drive mechanism and is configured to inspect the workpieces on the belt drive mechanism. The workpieces are transported between the paper receiving mechanism and the belt drive mechanism. This printed matter inspection device can tension the belt to prevent belt slippage, avoid workpiece displacement or deformation, ensure the flatness of the workpieces and the stability of the transport, thereby ensuring the inspection accuracy of the workpieces.

Description

Technical Field

[0001] This invention relates to the field of printing equipment, and more particularly to a printing inspection device. Background Technology

[0002] The printing industry typically involves a large volume of printing operations. Before the printed workpieces are put into use, their printing quality must be inspected to prevent misprints and omissions. This is especially important for smaller printed structures, such as anti-counterfeiting labels, where misprints or omissions are difficult to detect. However, misprints or omissions can significantly impact the quality of the workpiece, potentially causing quality incidents. Therefore, printing inspection devices are needed to ensure printing quality. Common printing inspection devices mainly include belt drive mechanisms for automatic workpiece transport, followed by quality inspection by a detection mechanism. However, belt movement during transport inevitably occurs, affecting the flatness of the workpiece and the stability of the transport, thus impacting the accuracy of the printing inspection device. Summary of the Invention

[0003] The purpose of this invention is to provide a printing inspection device that can tension the belt to prevent belt slippage, ensure the flatness of the workpiece and the smoothness of workpiece transmission, thereby ensuring the inspection accuracy of the printing inspection device.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A printed matter inspection device, comprising:

[0006] A belt drive mechanism is used to transport workpieces. The belt drive mechanism includes a bracket, a belt, a drive shaft, and a first drive shaft. The drive shaft and the first drive shaft are spaced apart and rotatably mounted on the bracket. The belt is wound around the drive shaft and the first drive shaft. The position of the first drive shaft relative to the bracket is adjustable to tension the belt.

[0007] An inspection mechanism is disposed above the belt drive mechanism, and the inspection mechanism is configured to inspect the workpiece on the belt drive mechanism;

[0008] A paper receiving mechanism, wherein the workpiece is transferred between the paper receiving mechanism and the belt drive mechanism.

[0009] Preferably, the central axes at both ends of the first drive shaft can be automatically aligned as the first drive shaft moves along the bracket.

[0010] Preferably, the testing institution includes:

[0011] A detection frame is located above and connected to the support;

[0012] A detection component, disposed on the detection frame, is used to detect the workpiece.

[0013] Preferably, the detection component is movable relative to the detection frame in a transmission direction perpendicular to the belt.

[0014] Preferably, the detection mechanism further includes a detection driver, which is disposed on the detection frame and the output end of the detection driver is connected to the detection component.

[0015] Preferably, the detection frame is provided with a guide slide rail, and the detection component is provided with a guide slider, the guide slider being slidably engaged with the guide slide rail.

[0016] Preferably, the printed matter inspection device further includes a base, on which the belt drive mechanism and the paper receiving mechanism are both disposed, and the base is made by casting.

[0017] Preferably, the belt has multiple belt through holes, and the belt drive mechanism also includes a suction component, which can adsorb the workpiece onto the belt through the belt through holes.

[0018] Preferably, the suction assembly is located in the suction space formed by the belt, the drive shaft and the first transmission shaft, and the suction space is provided with a plurality of suction chambers, each of which is provided with a fan.

[0019] Preferably, the paper receiving mechanism includes a rotatable rubber roller located above the belt drive mechanism, and the distance between the rubber roller and the belt drive mechanism is adjustable.

[0020] The beneficial effects of this invention are:

[0021] The printed matter inspection device proposed in this invention includes a belt drive mechanism, an inspection mechanism, and a paper receiving mechanism. The belt drive mechanism is used to transport workpieces and includes a support, a belt, a drive shaft, and a first transmission shaft. The drive shaft and the first transmission shaft are spaced apart and rotatably mounted on the support. The belt is wound around the drive shaft and the first transmission shaft. The position of the first transmission shaft relative to the support is adjustable to tension the belt. The inspection mechanism is located above the belt drive mechanism and is configured to inspect the workpieces on the belt drive mechanism to determine whether the processing quality of the workpieces meets the requirements. The inspection information is transmitted to subsequent devices to separate qualified and unqualified workpieces. The workpieces are transferred between the paper receiving mechanism and the belt drive mechanism. The paper receiving mechanism can apply a certain pressure to the workpieces to ensure that the workpieces are smoothly transferred to the belt drive mechanism, preventing the workpieces from shifting or deforming during the transfer process. This printed matter inspection device can tension the belt to prevent belt slippage, ensuring the flatness of the workpieces and the stability of workpiece transfer, thereby ensuring the inspection accuracy of the printed matter inspection device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the belt drive mechanism provided in an embodiment of the present invention;

[0023] Figure 2 This is an assembly diagram of the drive shaft, first transmission shaft, transmission tensioning assembly, and belt provided in an embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional view of the first drive shaft, bracket, and mounting assembly provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the printed matter inspection device provided in an embodiment of the present invention from a first-view perspective;

[0026] Figure 5 This is a schematic diagram of the structure of the suction assembly provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the air intake assembly with the ventilation plate hidden, provided in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the air intake assembly provided in an embodiment of the present invention, excluding the ventilation plate and the adjustment plate;

[0029] Figure 8 This is a cross-sectional view of the paper receiving assembly provided in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the printed matter inspection device provided in an embodiment of the present invention from a second perspective.

[0031] In the picture:

[0032] 1. Bracket; 2. Rotary drive assembly; 3. Drive shaft; 4. First transmission shaft;

[0033] 5. Belt; 51. Belt through hole;

[0034] 6. Mounting components; 61. Mounting part; 611. Spherical cavity; 612. Tensioning strip hole; 613. First mounting plate; 614. Second mounting plate; 62. Spherical head; 621. Spherical head component; 6211. Spherical protrusion; 622. Transmission stationary spindle;

[0035] 7. Transmission tensioning assembly; 71. Second transmission shaft; 72. Tensioning stationary shaft;

[0036] 8. Moving tensioning assembly; 81. Tensioning screw; 82. Fixing block;

[0037] 9. Suction assembly; 91. Ventilation plate; 911. Suction hole; 92. Side plate; 93. Mounting base plate; 94. Partition plate; 95. Adjustment plate; 951. Through hole; 96. Support column; 97. Outer shell;

[0038] 100. Belt drive mechanism;

[0039] 200. Testing organization; 201. Testing components; 202. Testing framework;

[0040] 300. Paper receiving mechanism; 301. Rubber roller; 302. Adjustment unit; 3021. Moving part; 3022. Base; 303. Paper receiving stationary core shaft; 3031. Anti-rotation platform. Detailed Implementation

[0041] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figures 1-9As shown, this embodiment provides a printed matter inspection device, which is mainly used to inspect the printed workpiece to determine whether the printing of the workpiece meets the requirements, so as to separate the printed qualified workpiece from the printed unqualified workpiece in subsequent processes. In this embodiment, the workpiece specifically refers to the printed matter that has been printed. Of course, in other embodiments, it can also be other workpieces that need to be inspected. The printing inspection device includes a belt drive mechanism 100, an inspection mechanism 200, a paper receiving mechanism 300, and a base. Both the belt drive mechanism 100 and the paper receiving mechanism 300 are mounted on the base. The belt drive mechanism 100 is used to transport workpieces. The belt drive mechanism 100 includes a support 1, a belt 5, a drive shaft 3, and a first transmission shaft 4. The drive shaft 3 and the first transmission shaft 4 are spaced apart and rotatably mounted on the support 1. The belt 5 is wound around the drive shaft 3 and the first transmission shaft 4. The position of the first transmission shaft 4 relative to the support 1 is adjustable. By adjusting the distance between the first transmission shaft 4 and the drive shaft 3, the belt 5 wound around the first transmission shaft 4 and the drive shaft 3 can be tensioned, preventing further slippage of the belt 5 and ensuring smooth operation of the belt 5. This, in turn, ensures the flatness of the workpieces transported on the belt 5 and the smoothness of the workpiece transport. The device ensures the smoothness of the workpiece. The detection mechanism 200 is positioned above the belt drive mechanism 100. It is configured to inspect the workpieces on the belt drive mechanism 100 to determine if their processing quality meets requirements and transmits the inspection information to subsequent devices to separate qualified and unqualified workpieces. The paper receiving mechanism 300 is located upstream of the belt drive mechanism 100 and, together with the belt drive mechanism 100, receives the workpieces from the previous process. The workpieces are transferred between the paper receiving mechanism 300 and the belt drive mechanism 100. The paper receiving mechanism 300 applies a certain pressure to the workpieces to ensure smooth transfer to the belt drive mechanism 100, preventing workpiece shifting or deformation during transfer, which would affect the detection accuracy of the detection mechanism 200. This printing inspection device can tension the belt 5 to prevent it from shifting, avoiding workpiece shifting or deformation, ensuring workpiece flatness and stable transmission, and achieving high workpiece detection accuracy.

[0043] Optionally, to improve the anti-vibration capability of the printing inspection device, the base is made using a casting process, and its stability can be improved by adjusting the casting time. This ensures that the vibration amount remains within a very small range even when the printing inspection device is operating at high speed, guaranteeing smooth transmission of workpieces with good flatness. This minimizes interference when the inspection mechanism 200 inspects the workpieces, resulting in high inspection accuracy and efficiency, reliable printing quality inspection, and wide applicability. Furthermore, in this embodiment, the base includes two cast iron plates and a crossbeam. The two cast iron plates are arranged opposite each other, and the crossbeam is positioned between them, providing a stable structure. Additionally, other mechanisms can be installed between the two cast iron plates, making the printing inspection device compact and requiring minimal installation space. Of course, the base configuration is not limited to this; other structures are also possible, depending on actual assembly and installation requirements. This embodiment does not impose any limitations on this.

[0044] To provide power to the belt drive mechanism 100, the belt drive mechanism 100 also includes a rotary drive assembly 2, which is mounted on the bracket 1. The drive shaft 3 is connected to the output end of the rotary drive assembly 2. As an example, the rotary drive assembly 2 includes a rotary motor and a synchronous pulley. The rotary motor drives the drive shaft 3 to rotate via the synchronous pulley. The synchronous pulley is existing technology and will not be described in detail in this embodiment. Of course, in other embodiments, the rotary drive assembly 2 can also be of other forms or types. Any rotary drive assembly 2 that can drive the drive shaft 3 to rotate relative to the bracket 1 can be used.

[0045] The following combination Figures 1-3 The belt drive mechanism 100 is described.

[0046] To tension the belt 5, the distance between the first drive shaft 4 and the drive shaft 3 needs to be adjusted, causing the first drive shaft 4 to move relative to the bracket 1. Specifically, when the belt 5 shifts on one side of its transmission direction, the position of the corresponding end of the first drive shaft 4 needs to be adjusted to tension the belt 5. During the adjustment of the first drive shaft 4, the central axes at both ends of the first drive shaft 4 may not coincide. In this case, the first drive shaft 4 will bend, affecting the transmission process of the belt 5 wound around the drive shaft 3 and the first drive shaft 4. This will worsen the flatness of the workpiece and the stability during transmission, thus affecting the detection results of the detection mechanism 200, causing errors such as false positives for good products, and reducing the detection accuracy of the printed matter detection device. To avoid bending of the first drive shaft 4 and to enable adaptive adjustment when the central axes at both ends of the first drive shaft 4 do not coincide, ensuring the flatness and smooth transmission of the belt 5, the central axes at both ends of the first drive shaft 4 can automatically align as the first drive shaft 4 moves along the bracket 1, preventing bending of the first drive shaft 4.

[0047] Specifically, the belt drive mechanism 100 includes a mounting assembly 6, which includes a ball head 62 and two mounting portions 61. The two mounting portions 61 are located on both sides of the first drive shaft 4 and can move relative to the bracket 1 to adjust the position of both ends of the first drive shaft 4 and to tension the belt 5. Each mounting portion 61 has a spherical cavity 611. The first drive shaft 4 is rotatably mounted on the ball head 62. Both ends of the ball head 62 have spherical protrusions 6211, which roll into the corresponding spherical cavities 611. When the central axes of the two ends of the first drive shaft 4 do not coincide during tensioning, the ball head 62 can rotate a certain angle within the spherical cavity 611 through the spherical protrusions 6211, automatically aligning the two ends of the first drive shaft 4 and preventing bending of the first drive shaft 4. The belt drive mechanism 100 has a simple and space-saving structure. The belt 5 is easy and convenient to tension, and it avoids bending of the first drive shaft 4 due to different adjustment amounts at both ends during tensioning. This ensures the flatness and stability of the belt 5 during operation, thereby guaranteeing the flatness of the workpiece and the accuracy of workpiece inspection. The belt drive mechanism 100 provided in this embodiment can ensure that the lateral movement of the belt 5 is within ±0.2mm, and the belt 5 exhibits good flatness and transmission stability.

[0048] Optionally, to reduce the impact of vibration on the transmission of the belt drive mechanism 100, the ball head 62 includes a transmission stationary shaft 622 and two ball head pieces 621. The first transmission shaft 4 is sleeved on the transmission stationary shaft 622 and can rotate relative to it. The two ball head pieces 621 are respectively fixedly disposed at both ends of the transmission stationary shaft 622, and each ball head piece 621 is provided with a spherical protrusion 6211. Since the vibration will decrease step by step when transmitted between the components, sleeve the first transmission shaft 4 on the transmission stationary shaft 622 to realize the rotatable connection between the first transmission shaft 4 and the mounting part 61, so that the vibration of the first transmission shaft 4 is transmitted to the bracket 1 after being reduced through the transmission stationary shaft 622, the ball head pieces 621, and the mounting part 61, thereby reducing the vibration degree of the belt drive mechanism 100, improving the smoothness of the transmission of the belt drive mechanism 100, and ensuring the transmission quality even when working at high speed. The connection method between the first drive shaft 4 and the ball head 62 is not limited to this, as long as it allows the first drive shaft 4 to be rotatably mounted on the ball head 62. Of course, the above is only a preferred embodiment, and the arrangement of the first drive shaft 4 is not limited to this. In other embodiments, when the need for the center axes of both ends of the first drive shaft 4 to be automatically aligned during adjustment is not considered, the first drive shaft 4 can be sleeved on the drive stationary core shaft 622, and the drive stationary core shaft 622 can be directly connected to the mounting part 61. This embodiment does not limit this.

[0049] To reduce friction between the first drive shaft 4 and the drive stationary shaft 622, the first drive shaft 4 is mounted on the drive stationary shaft 622 via bearings. Specifically, the first drive shaft 4 and the drive stationary shaft 622 are connected by two bearings. For mounting the bearings, both ends of the first drive shaft 4 are recessed inward to form journals, and the corresponding drive stationary shaft 622 has shoulders. One side of the bearing abuts against both the journal on the first drive shaft 4 and the shoulder on the drive stationary shaft 622. To limit the movement of the other side of the bearing, an end cap is provided on the other side of the bearing, connecting the bearing, the first drive shaft 4, and the drive stationary shaft 622 together. Furthermore, to further limit the movement of the first drive shaft 4 along the axial direction of the drive stationary shaft 622, a limiting sleeve is also provided on the drive stationary shaft 622. Of course, the connection between the first drive shaft 4 and the drive stationary core shaft 622 is not limited to this. They can also be connected by other structures, as long as the first drive shaft 4 can be sleeved on the drive stationary core shaft 622 and can rotate around the drive stationary core shaft 622.

[0050] Optionally, the drive mandrel 622 and the two ball joints 621 at both ends are separate structures. This separate structure facilitates the installation of the drive mandrel 622. Furthermore, since vibration is further reduced when transmitted between the drive mandrel 622 and the ball joints 621, the separate structure further reduces the impact of vibration on the belt drive mechanism 100. Of course, in other embodiments, the drive mandrel 622 and the two ball joints 621 can also be an integrated structure, which can be configured according to actual needs. This embodiment does not impose any restrictions on this.

[0051] Furthermore, in order to form the spherical cavity 611 and facilitate the installation of the spherical protrusion 6211 and the spherical cavity 611, the mounting portion 61, exemplarily, also includes a first mounting plate 613 and a second mounting plate 614, such as... Figure 3As shown, the second mounting plate 614 can move relative to the bracket 1 in the direction that tensions the belt 5. The first mounting plate 613 is disposed on the side of the second mounting plate 614 away from the bracket 1. Both the first mounting plate 613 and the second mounting plate 614 have hemispherical cavities on opposite sides, and the two hemispherical cavities can cooperate to form a spherical cavity 611. For example, when assembling the first drive shaft 4, the drive stationary shaft 622, and the mounting part 61, the first drive shaft 4 is first connected to the drive stationary shaft 622 via bearings, end caps, and limiting sleeves. The second mounting plate 614 is then placed on the bracket 1. One end of the drive stationary shaft 622 extends into the hemispherical cavity of the second mounting plate 614, and a ball joint 621 passes through the hemispherical cavity of the second mounting plate 614 and is fitted onto one end of the drive stationary shaft 622. The ball joint 621 is then fixedly connected to the drive stationary shaft 622. Finally, the first mounting plate 613 is fixed onto the second mounting plate 614, thus achieving the installation of the first drive shaft 4. The ball joint 621 and the drive stationary shaft 622 can be fixedly connected using bolts. Of course, the installation sequence of the first drive shaft 4 and the mounting assembly 6 is not limited to this and can be adjusted according to actual installation requirements.

[0052] To facilitate the adjustment of the position of the first drive shaft 4 for tensioning the belt 5 and to save installation space, such as Figure 1 As shown, the belt drive mechanism 100 also includes a movable tensioning component 8, which includes a tensioning screw 81 and a fixing block 82 mounted on the bracket 1. The fixing block 82 has a tension threaded through hole. One end of the tensioning screw 81 abuts against the mounting part 61, and the other end is threadedly connected to the tension threaded through hole. When tensioning the belt 5, turning the end of the tensioning screw 81 away from the mounting part 61 will cause the mounting part 61 to move due to the pushing action of the tensioning screw 81, thereby achieving the tensioning of the belt 5. Since the tensioning of the belt 5 usually requires moving the first drive shaft 4 away from the drive shaft 3, the tensioning requirement of the belt 5 can be met by unidirectionally adjusting the position of the first drive shaft 4 through the pushing action of the tensioning screw 81 on the mounting part 61. The structure is simple and easy to maintain. In addition, the adjustment of the position of the mounting part 61 through the threaded engagement can also achieve the effect of saving effort.

[0053] For example, the mounting part 61 is provided with a tensioning strip hole 612. The tensioning strip hole 612 is arranged along the direction that allows the belt 5 to be tensioned. The tensioning connector can pass through the tensioning strip hole 612 and be fixed on the bracket 1, so that the mounting part 61 can move relative to the bracket 1 and be fixed in a suitable position by the tensioning connector, so as to adjust the position of the first drive shaft 4 and tension the belt 5.

[0054] Optionally, the mounting part 61 is provided with two tensioning slots 612, which are arranged parallel to each other at both ends of the mounting part 61. The arrangement of the two tensioning slots 612 ensures that the adjustment of the mounting part 61 is stable and does not wobble, and that the mounting part 61 does not rotate during the position adjustment process. In this embodiment, both tensioning slots 612 are arranged on the second mounting plate 614 along the transmission direction parallel to the belt 5. In addition, the bracket 1 is provided with mounting holes to fix the tensioning connector, thereby mounting the mounting part 61 on the bracket 1. For example, the tensioning connector can be a bolt, which provides a stable and reliable connection, a simple structure, and is convenient for installation and disassembly. Of course, the arrangement of the tensioning slots 612 is not limited to this. In other embodiments, the tensioning slots 612 can also be arranged at an angle to the transmission direction of the belt 5, as long as the position adjustment of the mounting part 61 can be achieved to tension the belt 5. Furthermore, the number of tensioning slots 612 is not limited to this and can be set according to actual needs. This embodiment does not limit this.

[0055] Furthermore, to increase the range of motion of the mounting part 61 and enhance the adjustability of the movable tensioning assembly 8, the bracket 1 is provided with multiple mounting holes. At least one tensioning connector passes through the tensioning strip hole 612 and is selectively fixed in the mounting hole to adjust and fix the position of the mounting part 61. The mounting part 61 can be adjusted to a suitable position and then fixed on the bracket 1 to flexibly adjust its position. Of course, the mounting part 61 is not limited to this and can be other structures, as long as it can achieve adjustable position and fixation of the mounting part 61 on the bracket 1 along the direction of tensioning the belt 5.

[0056] For example, the tensioning process of belt 5 is as follows: First, slightly loosen the tensioning connector connected to the mounting hole, then tighten the tensioning screw 81 to move it closer to the mounting part 61, thereby pushing the mounting part 61 to move. The corresponding mounting part 61 can slide along the tensioning connector. After the mounting part 61 is adjusted to the appropriate position, tighten the tensioning connector to fix the mounting part 61 and complete the tensioning of belt 5. The structure of tensioning screw 81 and fixing block 82 is simple. Each time tensioning is performed, only the tensioning connector needs to be loosened. There is no need to disassemble the tensioning connector and other parts. The operation is easy and labor-saving, and the position of the mounting part 61 can be easily adjusted to tension belt 5. Furthermore, when the adjustment range of the tensioning slot 612 cannot meet the tensioning requirements of the belt 5, the tensioning connector can be loosened and removed, and the position of the mounting part 61 can be adjusted. This allows the mounting part 61 to drive the first drive shaft 4 away from the drive shaft 3, and the tensioning connector to pass through the tensioning slot 612 and be fixed in the corresponding mounting hole. The above tensioning steps are then repeated to tension the belt 5. This configuration reduces the size and weight of the mounting part 61, and facilitates the adjustment of the position of the mounting part 61 by the movable tensioning assembly 8. Of course, the structure of the movable tensioning assembly 8 is not limited to this; any structure that allows the adjustment of the position of the mounting part 61 to tension the belt 5 is acceptable.

[0057] In this embodiment, both sides of the bracket 1 are provided with transmission strip holes facing the first transmission shaft 4. The first transmission shaft 4 is sleeved on the transmission stationary core shaft 622. The two ends of the transmission stationary core shaft 622 pass through the two transmission strip holes respectively and are fixed to the bracket 1 through the ball joint 621 and the mounting part 61. The transmission strip holes can guide the movement of the transmission stationary core shaft 622 and the mounting part 61, and can also play a certain limiting role in the transmission direction perpendicular to the belt 5.

[0058] The application of the movable tensioning component 8 is not limited to this; it can also be used in other belt drive mechanisms. In other embodiments, the first drive shaft 4 can be directly rotatably mounted on the mounting part 61. In this case, both ends of the first drive shaft 4 pass through two drive bar holes and are connected to the mounting part 61, and the position of the mounting part 61 can be adjusted by the movable tensioning component 8.

[0059] Optionally, in order to further achieve tension of the belt 5, the belt drive mechanism 100 also includes a transmission tensioning component 7, which is disposed on the bracket 1 and configured to tension the belt 5.

[0060] Specifically, the transmission tensioning assembly 7 includes multiple second transmission shafts 71, which are rotatably mounted on the bracket 1. The belt 5 is sequentially wound around the drive shaft 3, the first transmission shaft 4, and the multiple second transmission shafts 71. Figure 2As shown, in this embodiment, the transmission tensioning assembly 7 includes three second transmission shafts 71. One second transmission shaft 71 and the first transmission shaft 4 are disposed on one side of the bracket 1, and the other two second transmission shafts 71 and the drive shaft 3 are disposed on the other side of the bracket 1. Of course, the number and arrangement of the drive shaft 3, the first transmission shaft 4, and the second transmission shafts 71 are not limited to this, and can be flexibly designed according to actual needs.

[0061] To further reduce the vibration of the belt drive mechanism 100 during operation, enabling it to smoothly transmit workpieces at higher transmission speeds and expanding its applicability, in this embodiment, the transmission tensioning assembly 7 further includes multiple tensioning mandrels 72 corresponding one-to-one with the second drive shaft 71. Both ends of the tensioning mandrels 72 are fixed to the bracket 1. Each second drive shaft 71 is sleeved on its corresponding tensioning mandrel 72 and can rotate relative to it. When the belt drive mechanism 100 operates, the vibration of the second drive shaft 71 is transmitted to the bracket 1 through the tensioning mandrels 72, with the vibration energy gradually decreasing, thereby reducing the vibration of the belt drive mechanism 100. In other embodiments, to further reduce the vibration of the belt drive mechanism 100, the drive shaft 3 can also be mounted on the tensioning mandrel 72, and the drive shaft 3 can be directly driven to rotate by the rotation drive assembly 2. This embodiment does not impose any limitations on this approach. Practice has proven that the printed matter inspection device provided in this embodiment can ensure that the vibration of the belt drive mechanism 100 is less than 50μm at a transmission speed of 300m / min.

[0062] To reduce friction between the second drive shaft 71 and the tensioning stationary shaft 72, the second drive shaft 71 and the tensioning stationary shaft 72 are also connected by two bearings. The connection method between the second drive shaft 71 and the tensioning stationary shaft 72 is similar to the connection method between the first drive shaft 4 and the drive stationary shaft 622 described above, and will not be described in detail in this embodiment.

[0063] Of course, the application of the transmission tensioning component 7 is not limited to this; it can also be used in other belt drive mechanisms. This embodiment does not limit this application.

[0064] Optionally, in order to improve the flatness of the workpiece during transmission on the belt 5, reduce the false alarm rate of the detection mechanism 200, and improve the detection accuracy of the printed matter detection device, such as... Figure 2 and Figure 5 As shown, the belt 5 has multiple belt through holes 51, and the belt drive mechanism 100 also includes a suction assembly 9, which can adsorb the workpiece onto the belt 5 through the belt through holes 51. In this embodiment, the multiple belt through holes 51 are evenly arranged to ensure uniform suction distribution, which can improve the flatness of the workpiece.

[0065] Specifically, the suction assembly 9 is located within the suction space formed by the belt 5, the drive shaft 3, and the first transmission shaft 4, enabling the belt drive mechanism 100 to have a compact structure and save installation space. Since the area of ​​the belt 5 used for conveying workpieces is relatively large, when using a single fan to adsorb the workpiece, only the portion of the belt 5 directly opposite the fan's suction port has strong suction, while the portion farther from the fan has weak suction, making it impossible to guarantee the flatness of the workpiece across the entire conveying plane of the belt 5. To improve the adsorption capacity and suction uniformity of the suction assembly 9, multiple suction chambers are provided within the suction space, each equipped with a fan. The fans adsorb the workpiece onto the belt 5 through the belt through-hole 51. The arrangement of multiple suction chambers ensures uniform suction, with each fan corresponding to a specific area of ​​the belt 5, avoiding poor adsorption capacity in the portions of the belt 5 far from the fan. This increases the adsorption area of ​​the belt 5, ensuring the flatness of the workpiece during transmission, reducing workpiece offset or deformation, guaranteeing the transmission quality of the workpiece, and thus improving the detection accuracy of the printing inspection device. Furthermore, the use of multiple fans ensures that each fan requires only a small amount of power to guarantee adsorption quality, thus saving energy and reducing power consumption. Each fan can also be disassembled individually, allowing for timely replacement in case of a malfunction without affecting the operation of the printing inspection device, and facilitating maintenance. As an example, this embodiment uses six fans with a total power of 720W, which is sufficient to meet the workpiece adsorption requirements. Of course, the configuration of the suction assembly 9 is not limited to this; any configuration that allows the suction assembly 9 to adsorb the workpiece onto the belt 5 through the belt through-holes 51 is acceptable.

[0066] Optionally, such as Figure 5 As shown, the suction assembly 9 also includes a ventilation plate 91, which is located above and connected to the suction cavity. The ventilation plate 91 has multiple suction holes 911 that can communicate with the belt through-holes 51. Because the belt 5 has a long distance between its two sides along the transmission direction, and its middle section has weaker rigidity, it may deform under the force of the suction assembly 9, affecting the flatness and transmission stability of the belt 5. This, in turn, affects the stability of the workpiece being transported on the belt 5 and the detection results of the detection mechanism 200. Therefore, a ventilation plate 91 is provided below the side of the belt 5 where the workpiece is transported. This forms a suction cavity, increases suction, and provides support for the belt 5, improving its flatness and transmission stability, thereby increasing the detection accuracy of the printing inspection device.

[0067] In this embodiment, since the position of the belt through hole 51 on the belt 5 changes constantly during operation, in order to minimize the situation where the suction force on the workpiece on the belt 5 is small when the belt through hole 51 and the suction through hole 911 are not aligned during the operation of the belt 5, the suction through hole 911 is set to be elongated, so that the ventilation plate 91 can maximize the suction area while supporting the belt 5, so that the workpiece is flatly adsorbed on the belt 5 and the detection accuracy of the workpiece is improved.

[0068] Optionally, such as Figures 5-7 As shown, the suction assembly 9 also includes a mounting base plate 93, two side plates 92, and multiple partitions 94. The mounting base plate 93 is arranged parallel to the bottom of the ventilation plate 91; the two side plates 92 are arranged opposite each other between the ventilation plate 91 and the mounting base plate 93. The ventilation plate 91, the two side plates 92, the mounting base plate 93, and the bracket 1 form a suction chamber; the multiple partitions 94 are evenly arranged in the suction chamber and divide the suction chamber into multiple suction cavities. When the printing inspection device is working, the fan uses the suction holes 911 on the ventilation plate 91 and the belt holes 51 on the belt 5 to adsorb the workpiece onto the belt 5, ensuring the flatness of the workpiece and thus improving the inspection accuracy of the workpiece.

[0069] When the suction assembly 9 adsorbs the workpiece, although the area of ​​the belt 5 corresponding to each suction chamber is reduced by setting multiple suction chambers, the adsorption capacity of the fan for areas far from the suction port is smaller than that for areas near the suction port, resulting in uneven suction. To further improve the adsorption uniformity of the suction assembly 9, such as... Figures 6-7As shown, the suction assembly 9 also includes an adjusting plate 95 with multiple through holes 951. The adjusting plate 95 is arranged parallel between the ventilation plate 91 and the mounting base plate 93 to divide the suction chamber into multiple corresponding and vertically distributed transition chambers and mounting chambers. The fan is located in the mounting chamber. The fan can adsorb the workpiece onto the belt 5 through the corresponding through holes 951 and transition chambers. Compared with the fan directly sucking air onto the belt 5, sucking air onto the belt 5 through the transition chambers can make the airflow uniform within the transition chambers, thereby making the suction force on the corresponding parts of the belt 5 uniform, resulting in a better adsorption effect on the workpiece. This avoids uneven suction caused by different distances between different parts of the belt 5 and the fan's suction port. In this embodiment, the adjusting plate 95 is located near the ventilation plate 91, which can reduce the height and volume of the transition chambers, thereby maximizing the suction capacity of the suction assembly 9 while maintaining a certain fan efficiency. Of course, the fan configuration is not limited to this. In other embodiments, a transition cavity can correspond to multiple through holes 951 to further enhance the suction capacity of the suction assembly 9. The configuration can be made according to actual suction requirements, and this embodiment does not impose any restrictions on this. In addition, in this embodiment, the mounting base 93 consists of multiple support plates, which are evenly and spaced on the bracket 1. The fan is mounted on the support plates, which can save materials, reduce the manufacturing cost of the printing inspection device, and reduce the weight of the printing inspection device.

[0070] Optionally, each fan is covered with a housing 97 with openings at the top and bottom. The housing 97 is mounted on the mounting base plate 93, and the upper opening of the housing 97 extends into the through hole 951. The air intake of the fan is connected to the transition cavity through the housing 97, which can make the air intake area of ​​the fan more concentrated, improve the working efficiency of the fan, and improve the adsorption effect on the workpiece.

[0071] For example, in this embodiment, the suction assembly 9 further includes a plurality of support columns 96. The plurality of support columns 96 are arranged parallel to each other and uniformly erected in the suction cavity. Each support column 96 is connected to a mounting base plate 93 and a ventilation plate 91 at both ends to provide support for the ventilation plate 91, preventing deformation due to weak rigidity in the middle part of the ventilation plate 91, thereby further improving the flatness of the belt 5 and ensuring the detection accuracy of the workpiece. In this embodiment, there are eight support columns 96, which are spaced apart and uniformly arranged in the suction cavity near the side plate 92. Of course, the number and arrangement of the support columns 96 are not limited to this and can be set according to actual needs.

[0072] To facilitate the electrical connection between the fan and an external power source for power supply, and to ensure neat and easily distinguishable wiring of the printing inspection device, a junction box is also provided on the bracket 1. The fan is electrically connected to the external power source through the junction box. Exemplarily, the wires are arranged along the internal contour of the bracket 1 and fitted to the bracket 1. The two ends of the wires are connected to the fan and the junction box respectively, thus achieving an electrical connection between the fan and the junction box. The multiple wires are neatly and orderly arranged inside the bracket 1, facilitating the installation and maintenance of the fan, and will not interfere with other internal structures of the printing inspection device. Of course, the junction box is not limited to this; it can be configured according to actual assembly requirements, as long as it enables the electrical connection between the fan and the external power source.

[0073] Of course, the application of the suction component 9 is not limited to this; it can also be used in other belt drive mechanisms. This embodiment does not limit this application.

[0074] The following combination Figure 4 and Figure 8 The paper-connecting mechanism 300 is described.

[0075] To ensure smooth transfer of the workpiece to the transmission mechanism and prevent displacement or deformation during transfer, the paper receiving mechanism 300 includes a mounting frame, a rubber roller 301, and two adjusting parts 302. The mounting frame is located above the belt drive mechanism 100 and is fixedly mounted on the support 1. The two adjusting parts 302 are located at both ends of the rubber roller 301. To allow the position of the paper receiving mechanism 300 to be adjusted to accommodate workpieces of different thicknesses, the adjusting part 302 includes a moving part 3021 and a base 3022 mounted on the mounting frame. The base 3022 has a groove, the moving part 3021 is located in the groove and can move up and down along the groove, and the rubber roller 301 is rotatably mounted on the moving part 3021. When a workpiece is transferred from the previous process to the printing inspection device for inspection, it is prone to deviation and deformation upon entering the device. The rubber roller 301, working in conjunction with the belt drive mechanism 100, applies pressure to the workpiece, ensuring its smooth transfer onto the belt drive mechanism 100 and then by the belt 5 to the area below the inspection mechanism 200 for inspection. Furthermore, the soft surface of the rubber roller 301 prevents damage to the already processed workpiece. Since different workpieces may have varying thicknesses, thinner workpieces have poor paper-catching performance when passing between the paper-feeding mechanism 300 and the belt drive mechanism 100, while thicker workpieces are difficult to pass between them due to excessive pressure, which could damage the workpiece. In this embodiment, adjusting parts 302 are provided at both ends of the rubber roller 301 to adjust the distance between the rubber roller 301 and the belt drive mechanism 100, thereby adjusting the pressure exerted by the rubber roller 301 on the workpiece. This makes it suitable for various workpieces and has a wide range of applications.

[0076] For example, the rubber roller 301 has a metal core and an outer surface covered with vulcanized rubber. Of course, the material of the rubber roller 301 is not limited to this, and other materials can be used in other embodiments, as long as the paper splicing function can be achieved without damaging the workpiece.

[0077] Optionally, to facilitate the adjustment of the position of the rubber roller 301, the paper receiving mechanism 300 also includes a paper receiving adjustment component, which passes through the movable component 3021 and is threadedly engaged with the base 3022. When it is necessary to adjust the position of the rubber roller 301, rotating the paper receiving adjustment component will cause the movable component 3021 to move up and down within the base 3022. Specifically, a reset component is provided between the movable component 3021 and the base 3022. The paper receiving adjustment component passes through the movable component 3021 and is threadedly engaged with the base 3022. Under the action of the reset component, the upper part of the movable component 3021 abuts against the paper receiving adjustment component. Of course, the connection method between the movable component 3021 and the base 3022 is not limited to this, as long as the movable component 3021 can move up and down within the base 3022 along the groove.

[0078] For example, the paper splice adjustment component is a bolt, and the reset component is a spring. In this embodiment, one adjustment part 302 includes two paper splice adjustment components and two reset components to make the installation of the rubber roller 301 more reliable. Specifically, a stepped hole is provided on the moving part 3021, with the small end of the stepped hole facing upward. The paper splice adjustment component is sequentially inserted into the stepped hole and the threaded hole of the base 3022. The spring is sleeved on the paper splice adjustment component and accommodated in the large end of the stepped hole. This arrangement can save layout space. Of course, the type and number of paper splice adjustment components and reset components are not limited to this and can be set according to actual installation needs.

[0079] To further increase the adjustment range of the rubber roller 301, thereby expanding the applicability of the paper receiving assembly 300, a paper receiving strip hole is provided on the mounting frame, extending vertically. A paper receiving threaded through hole is provided on the side of the base 3022 near the mounting frame, allowing the paper receiving connector to pass through the strip hole and be threadedly connected to it. When the adjustment range of the adjusting part 302 cannot meet the adjustment needs of the rubber roller 301, the paper receiving connector can be loosened, allowing it to slide within the strip hole to adjust the position of the adjusting part 302. When the adjusting part 302 is adjusted to a suitable position, the paper receiving connector is tightened to fix it in place. In this embodiment, two paper receiving connectors are used to ensure the stability of the adjusting part 302. Of course, the installation method of the adjusting part 302 is not limited to this; any structure that allows the adjusting part 302 to move up and down relative to the mounting frame and to be fixed after movement can be adopted.

[0080] Optionally, in order to prevent the movable part 3021 from moving along the axial direction of the rubber roller 301 when it moves in the groove of the base 3022, a baffle is connected to the side of the base 3022 away from the rubber roller 301 to limit the movable part 3021.

[0081] To improve the accuracy of the printed matter inspection device and further reduce its vibration, in this embodiment, the paper receiving mechanism 300 further includes a paper receiving stationary core shaft 303. A rubber roller 301 is sleeved on the paper receiving stationary core shaft 303 and can rotate relative to it. Both ends of the paper receiving stationary core shaft 303 are respectively connected to the corresponding moving parts 3021. To reduce friction, the rubber roller 301 is mounted on the paper receiving stationary core shaft 303 via bearings. The installation method of the rubber roller 301 and the paper receiving stationary core shaft 303 is the same as the installation method of the second drive shaft 71 and the tensioning stationary core shaft 72, and will not be described further in this application.

[0082] Specifically, to connect the paper-receiving stationary core shaft 303 and the moving part 3021, both ends of the paper-receiving stationary core shaft 303 are recessed inward to form anti-rotation platforms 3031. The moving part 3021 is provided with a paper-receiving through hole, the cross-sectional shape of which is the same as the end face shape of the paper-receiving stationary core shaft 303. The paper-receiving stationary core shaft 303 passes through the paper-receiving through hole, which can prevent the paper-receiving stationary core shaft 303 from rotating and affecting the paper reception of the rubber roller 301. As an example, the fixing of the paper-receiving stationary core shaft 303 and the moving part 3021 can be achieved by a threaded connection. Either a bolt passes through the moving part 3021 and abuts against the anti-rotation platform 3031 of the paper-receiving stationary core shaft 303, or a bolt passes through the moving part 3021 and is threadedly connected to the paper-receiving stationary core shaft 303. This can be configured according to actual installation needs, and this embodiment does not impose any limitations on this.

[0083] In this embodiment, no external drive unit is used to drive the rubber roller 301 to rotate. Instead, the rubber roller 301 is driven to rotate via the belt 5. Specifically, when the printing inspection device is working, the belt 5 drives the conveyed workpiece to move. The interaction between the workpiece and the rubber roller 301 drives the rubber roller 301 to rotate. This eliminates the need for an external drive unit, saving on the cost and installation volume of the printing inspection device. Of course, the driving method of the rubber roller 301 is not limited to this. In other embodiments, the rubber roller 301 can also be connected to an external drive unit, with the rubber roller 301 and the belt 5 moving at the same linear speed to allow the workpiece to be transferred between the rubber roller 301 and the belt 5, resulting in good transmission efficiency. The driving method of the rubber roller 301 can be set according to actual needs, and this embodiment does not impose any limitations on this.

[0084] Of course, the application scope of the paper receiving mechanism 300 is not limited to this, nor is the type of transmission mechanism limited to this. The paper receiving mechanism 300 can also be used in other belt drive mechanisms and other transmission mechanisms. This embodiment does not limit this.

[0085] The following combination Figure 4 and Figure 9 The testing organization 200 is described.

[0086] The inspection mechanism 200 includes an inspection frame 202 and an inspection component 201. The inspection frame 202 is located above and connected to the support 1. The inspection component 201 is set on the inspection frame 202 and is used to inspect the workpiece. By setting the inspection mechanism 200, high-quality inspection of the workpiece can be achieved at high speed, with high inspection efficiency, good inspection accuracy, and saving labor costs.

[0087] Exemplarily, the detection component 201 includes a position sensor, an image acquisition unit, a processor, and an actuator. The position sensor is electrically connected to the image acquisition unit and is used to detect the position of the workpiece on the belt 5. Once a workpiece is detected, the position sensor sends an electrical signal to the image acquisition unit. The image acquisition unit starts upon receiving the signal from the position sensor, acquires an image of the workpiece, and transmits it to the processor. The processor compares and judges the image acquired by the image acquisition unit with a standard image and is electrically connected to the actuator. If the image acquired by the image acquisition unit matches the standard image, the workpiece is qualified, and the processor sends an electrical signal to the actuator to control the actuator to transfer the qualified workpiece to the paper receiving device. If the image acquired by the image acquisition unit is different from the standard image, the workpiece is unqualified, and the processor sends an electrical signal to the actuator to control the actuator to transfer the unqualified workpiece to the waste disposal device. Of course, the configuration of the detection component 201 is not limited to this, and this embodiment does not impose any restrictions. Any detection component 201 that can determine whether the workpiece meets the requirements can be used.

[0088] Optionally, the detection component 201 can move relative to the detection frame 202 along a transmission direction perpendicular to the belt 5. During operation of the printing inspection device, the position of the detection component 201 can be adjusted according to different workpieces to improve its detection effect. In other embodiments, the detection component 201 can also move along a direction perpendicular to the transmission plane of the belt 5 to adapt to the detection of different workpieces.

[0089] To enable the movement of the detection component 201, the detection mechanism 200 further includes a detection drive component, which is mounted on the detection frame 202 and has its output connected to the detection component 201. For example, the detection drive component can be a cylinder. The detection mechanism 200 also includes a detection control component, which is electrically connected to the input of the detection drive component. When adjusting the position of the detection component 201, movement information is input to the detection control component, which then controls the detection drive component to move the detection component 201 along the detection frame 202.

[0090] To guide the movement of the detection component 201 along the detection frame 202 and prevent deviation in its movement direction, a guide rail is provided on the detection frame 202, and a guide slider is provided on the detection component 201. The guide slider slides along the guide rail, and the output end of the detection drive is connected to the detection component 201 to drive it to move along the guide rail. By providing the mutually sliding guide rail and guide slider, the movement of the detection component 201 along the detection frame 202 can be guided, and the stability of the movement process of the detection component 201 can be ensured.

[0091] The belt drive mechanism 100, the moving tensioning component 8, the transmission tensioning component 7, the suction component 9, the detection mechanism 200, and the paper receiving mechanism 300 mentioned above can all be modularly designed. Any of the above mechanisms or components can be used as a module in other devices. They can be flexibly combined according to actual needs and have a wide range of applications.

[0092] In the description herein, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0093] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0094] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0095] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0096] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A printing inspection device, characterized in that, include: A belt drive mechanism (100) is used to transport workpieces. The belt drive mechanism (100) includes a bracket (1), a belt (5), a drive shaft (3), and a first transmission shaft (4). The drive shaft (3) and the first transmission shaft (4) are spaced apart and rotatably mounted on the bracket (1). The belt (5) is wound around the drive shaft (3) and the first transmission shaft (4). The position of the first transmission shaft (4) relative to the bracket (1) is adjustable to tension the belt (5). An inspection mechanism (200) is disposed above the belt drive mechanism (100), and the inspection mechanism (200) is configured to inspect the workpiece on the belt drive mechanism (100); A paper receiving mechanism (300) is provided, and the workpiece is transferred between the paper receiving mechanism (300) and the belt drive mechanism (100); The belt drive mechanism (100) further includes a mounting assembly (6), which includes a ball head (62) and two mounting parts (61). The two mounting parts (61) are located on both sides of the first drive shaft (4) and can move relative to the bracket (1) to adjust the position of the two ends of the first drive shaft (4) and tension the belt (5). The mounting part (61) is provided with a spherical cavity (611), the first transmission shaft (4) is rotatably mounted on the ball head (62), and both ends of the ball head (62) are provided with spherical protrusions (6211), and the spherical protrusions (6211) roll into the spherical cavity (611) on the corresponding side; The ball head (62) includes a transmission stationary core shaft (622) and two ball head pieces (621). The first transmission shaft (4) is sleeved on the transmission stationary core shaft (622) and can rotate relative to it. The two ball head pieces (621) are respectively fixedly disposed at both ends of the transmission stationary core shaft (622), and each ball head piece (621) is provided with the spherical protrusion (6211). The mounting part (61) further includes a first mounting plate (613) and a second mounting plate (614). The second mounting plate (614) can move relative to the bracket (1) in the direction that tensions the belt (5). The first mounting plate (613) is located on the side of the second mounting plate (614) away from the bracket (1). Both the first mounting plate (613) and the second mounting plate (614) have hemispherical cavities on opposite sides. The two hemispherical cavities can cooperate to form the spherical cavity (611). The belt drive mechanism (100) further includes a movable tensioning component (8), which includes a tensioning screw (81) and a fixing block (82) disposed on the bracket (1). The fixing block (82) is provided with a tensioning thread through hole. One end of the tensioning screw (81) abuts against the mounting part (61), and the other end is threadedly connected to the tensioning thread through hole. The mounting part (61) is provided with a tensioning strip hole (612), which is arranged along the direction that allows the belt (5) to be tensioned. The tensioning connector can pass through the tensioning strip hole (612) and be fixed on the bracket (1), so that the mounting part (61) can move relative to the bracket (1).

2. The printed matter inspection device according to claim 1, characterized in that, The testing organization (200) includes: The detection frame (202) is located above and connected to the support (1); The detection component (201) is disposed on the detection frame (202) and is used to detect the workpiece.

3. The printed matter inspection device according to claim 2, characterized in that, The detection component (201) can move relative to the detection frame (202) in a transmission direction perpendicular to the belt (5).

4. The printed matter inspection device according to claim 3, characterized in that, The detection mechanism (200) further includes a detection driver, which is disposed on the detection frame (202), and the output end of the detection driver is connected to the detection component (201).

5. The printed matter inspection device according to claim 3, characterized in that, The detection frame (202) is provided with a guide slide rail, and the detection component (201) is provided with a guide slider, which slides in conjunction with the guide slide rail.

6. The printed matter inspection device according to claim 1, characterized in that, It also includes a base, on which the belt drive mechanism (100) and the paper receiving mechanism (300) are both disposed. The base is made by casting.

7. The printed matter inspection device according to claim 1, characterized in that, The belt (5) has multiple belt through holes (51), and the belt drive mechanism (100) also includes a suction component (9), which can adsorb the workpiece onto the belt (5) through the belt through holes (51).

8. The printed matter inspection device according to claim 7, characterized in that, The suction assembly (9) is located in the suction space formed by the belt (5), the drive shaft (3) and the first transmission shaft (4). The suction space is provided with multiple suction chambers, and each suction chamber is provided with a fan.

9. The printing inspection device according to any one of claims 1-8, characterized in that, The paper receiving mechanism (300) includes a rotatable rubber roller (301) located above the belt drive mechanism (100), and the distance between the rubber roller (301) and the belt drive mechanism (100) is adjustable.

Images