Conveying device and detection system

Abstract

The embodiment of the utility model provides a conveying device and a detection system, the conveying device comprises: a conveying mechanism comprising a mounting rack, a driving roller, a driven roller and a conveying belt, the driving roller and the driven roller are rotatably mounted on the mounting rack, the conveying belt is sleeved on the driving roller and the driven roller, and the conveying belt is used for conveying an object to be detected; the driving mechanism is connected with the driving roller and used for driving the driving roller to rotate; the sensor unit is used for sensing first position information and second position information of the detected object on the conveying belt; the sensor unit and the driving mechanism are both in communication connection with the control unit, the control unit controls the driving mechanism to be in a first state or a second state based on the first position information or the second position information, and in the first state, the conveying belt conveys a detected object; and in the second state, the conveying belt is in a static state. According to the conveying device, the detected object can be accurately moved to the detection position, and the position accuracy of the detected object at the detection position is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment and detection, in particular to a conveying device and a detection system. Background Art

[0002] The detection system uses a beam of radiation to illuminate the workpiece and determines whether the workpiece has defects based on the scanned image. The detection system is widely used in the field of quality inspection.

[0003] In existing technologies, inspection systems typically include a conveyor belt and a detection device. The conveyor belt transports the inspected object to the inspection station, where the detection device inspects the object. As the inspected object moves along the conveyor belt, its position cannot be precisely controlled. When the inspected object reaches the inspection station, it may appear to be positioned forward or backward relative to the inspection area of ​​the detection device. This deviation from the inspection area can affect detection accuracy. Utility Model Content

[0004] In view of this, an embodiment of the present invention provides a conveying device and a detection system for solving the problem that existing conveying equipment cannot accurately position the conveyed object.

[0005] In a first aspect, an embodiment of the present invention provides a conveying device, comprising:

[0006] The conveying mechanism includes a mounting frame, a driving roller, a driven roller and a conveyor belt, wherein the driving roller and the driven roller are rotatably mounted on the mounting frame, the conveyor belt is sleeved on the driving roller and the driven roller, and the conveyor belt is used to transport the inspected object;

[0007] A driving mechanism connected to the active roller and configured to drive the active roller to rotate;

[0008] A sensor unit, configured to sense first position information and second position information of the inspected object on the conveyor belt; and

[0009] A control unit, wherein the sensor unit and the drive mechanism are both in communication with the control unit, and the control unit controls the drive mechanism to be in a first state or a second state based on the first position information or the second position information.

[0010] Wherein, in the first state, the conveyor belt conveys the inspected object; in the second state, the conveyor belt is in a stationary state.

[0011] According to an embodiment of the present invention, the sensor unit includes: a first sensor and a second sensor;

[0012] The first sensor is provided at a first position in the conveying direction of the conveying mechanism, and the first sensor is capable of sending a first sensing signal to the control unit, and the control unit controls the driving mechanism to be in the first state based on the first sensing signal; and

[0013] The second sensor is disposed at a second position in the conveying direction of the conveying mechanism. The second sensor can send a second sensing signal to the control unit. The control unit controls the driving mechanism to be in the second state based on the second sensing signal.

[0014] According to an embodiment of the present utility model, it further includes: a feedback unit, which is in communication with the control unit;

[0015] The feedback unit is configured to detect the second position information of the detected object on the conveyor belt;

[0016] The control unit controls the driving mechanism to be in the second state based on the second position information detected by the feedback unit.

[0017] According to an embodiment of the present invention, the feedback unit includes a first encoder, which is provided on the driven roller. The first encoder is used to detect a first real-time angle of rotation of the driven roller, and obtain the second position information based on the first real-time angle.

[0018] According to an embodiment of the present invention, the feedback unit further includes a second encoder, which is provided on the active roller and is used to detect a second real-time angle of rotation of the active roller.

[0019] According to an embodiment of the present invention, the control unit is further configured to receive a detection signal, and based on the detection signal, control the drive mechanism to be in the first state so as to transport the inspected object from the detection position to the unloading position.

[0020] According to an embodiment of the present invention, the active roller includes a first rotating shaft, a driving wheel and a first synchronous pulley, the driving wheel is sleeved on the first rotating shaft, two first synchronous pulleys are sleeved on the first rotating shaft, and the two first synchronous pulleys are located on opposite sides of the driving wheel;

[0021] The driven roller includes a second rotating shaft, a driven wheel and a second synchronous pulley, the driven wheel is sleeved on the second rotating shaft, two second synchronous pulleys are sleeved on the second rotating shaft, and the two second synchronous pulleys are located on opposite sides of the driven wheel; and

[0022] The conveyor belt includes a flat belt and a synchronous belt connected to both sides of the flat belt. The flat belt is sleeved on the driving wheel and the driven wheel, and the synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley.

[0023] According to an embodiment of the present utility model, it further includes: a support member;

[0024] The support member is arranged on the top of the mounting frame, and the support member is used to support the flat belt.

[0025] According to an embodiment of the present utility model, it further comprises: a tensioning mechanism;

[0026] The tensioning mechanism is arranged at the bottom of the mounting frame, and the tensioning mechanism includes a tensioning roller. The tensioning roller is suitable for moving in a vertical direction to adjust the tightness of the conveyor belt.

[0027] In a second aspect, an embodiment of the present invention provides a detection system, comprising:

[0028] The delivery device as described above;

[0029] A detection device is arranged in the conveying direction of the conveying device,

[0030] The conveying device is used to convey the inspected object from the first position to the second position, and the detecting device is used to detect the inspected object.

[0031] The conveying device and detection system provided by the embodiments of the present utility model can at least achieve the following technical effects: the sensor unit is used to sense the position information of the inspected object on the conveyor belt, and the control unit controls the driving mechanism to be in the first state or the second state according to the sensing signal of the sensor unit, so that the inspected object can be accurately moved from the loading position to the detection position, ensuring the position accuracy of the inspected object at the detection position. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0033] Figure 1 Schematically shows an oblique view of a conveying device according to an embodiment of the present utility model;

[0034] Figure 2 Schematically shows a front view of a conveying device according to an embodiment of the present utility model;

[0035] Figure 3 Schematically shows a partial structural diagram of a conveying device according to an embodiment of the present utility model;

[0036] Figure 4 Schematically shows a side view of a conveying device according to an embodiment of the present invention;

[0037] Figure 5 for Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0038] Figure 6 The figure schematically shows an assembly diagram of the active roller, the first mounting seat and the driving mechanism according to an embodiment of the present utility model;

[0039] Figure 7 Schematically shows an assembly diagram of a driven roller and a second mounting seat according to an embodiment of the present utility model;

[0040] Figure 8 Schematically shows a partial structural diagram of a conveyor belt according to an embodiment of the present utility model;

[0041] Figure 9 The following schematically shows a structural diagram of a detection system according to an embodiment of the present utility model;

[0042] Reference numerals:

[0043] 1: Conveying mechanism; 11: Mounting frame; 111: Support leg; 112: Support beam; 113: First mounting seat; 114: Second mounting seat; 115: Third mounting seat; 12: Active roller; 121: Active pulley; 122: First synchronous pulley; 13: Driven roller; 131: Driven pulley; 132: Second synchronous pulley; 14: Conveyor belt; 141: Flat belt; 142: Synchronous belt; 2: Driving mechanism; 31: First sensor; 32: Second sensor; 41: First encoder; 42: Second encoder; 5: Support member; 51: Horizontal connecting portion; 52: Vertical connecting portion; 53: Support portion; 6: Tensioning mechanism; 61: Tensioning roller; 62: Support roller; 7: Object to be inspected; 81: Radiation source; 82: Detector. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0045] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the presence of the features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] In the prior art, inspection systems typically include conveying equipment and inspection equipment. The conveying equipment is used to transport the inspected object to the inspection station, and the inspection equipment inspects the object at the inspection station. The inspected object moves to the inspection station on a conveyor belt. During this movement, the position of the inspected object is typically controlled by setting the rotation duration of the conveyor belt, which fails to accurately control the position of the inspected object. When the inspected object moves to the inspection station, it may appear to be forward or backward relative to the inspection area of ​​the inspection equipment. This deviation of the inspected object from the inspection area will affect the inspection accuracy.

[0048] The embodiments of the present invention provide a conveying device and a detection system, which can accurately control the position of the object to be detected, thereby ensuring the detection accuracy.

[0049] The following combination Figures 1 to 8 The conveying device according to the embodiment of the present invention is described.

[0050] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the conveying device provided by the embodiment of the present invention includes a conveying mechanism 1, a driving mechanism 2, a sensor unit and a control unit 9. The conveying mechanism 1 includes a mounting frame 11, an active roller 12, a driven roller 13 and a conveyor belt 14. The active roller 12 and the driven roller 13 are rotatably mounted on the mounting frame 11. The conveyor belt 14 is sleeved on the active roller 12 and the driven roller 13. The conveyor belt 14 is used to convey the inspected object 7. The driving mechanism 2 is connected to the active roller 12 and is used to drive the active roller 12 to rotate. The sensor unit is used to sense the first position information and the second position information of the inspected object 7 on the conveyor belt 14. The sensor unit and the driving mechanism 2 are both communicatively connected to the control unit 9. The control unit 9 controls the driving mechanism 2 to be in a first state or a second state based on the first position information or the second position information. In the first state, the conveyor belt 14 conveys the inspected object 7; in the second state, the conveyor belt 14 is in a stationary state.

[0051] Specifically, the mounting frame 11 is used to mount components such as the active roller 12 and the driven roller 13. The mounting frame 11 includes a leg 111 and a support beam 112. One end of the leg 111 is connected to the support beam 112, and the leg 111 is placed on the ground or a workbench. The support beam 112 can be a frame structure formed by splicing two longitudinal beams and multiple transverse beams. The support beam 112 has a length direction and a width direction. The length direction is as follows: Figure 1 and Figure 2 As shown in the D1 direction, the width direction is as Figure 1 In the direction D2, the support beam 112 has a first end and a second end opposite to each other along the length direction, and has a first side and a second side opposite to each other along the width direction.

[0052] The driving roller 12 is rotatably mounted on a first end of the support beam 112 , the driven roller 13 is rotatably mounted on a second end of the support beam 112 , and the conveyor belt 14 is sleeved on the driving roller 12 and the driven roller 13 .

[0053] The driving mechanism 2 is connected to the active roller 12 and is used to drive the active roller 12 to rotate. The driving mechanism 2 can be a motor, which can be a unidirectional motor, a bidirectional motor or a three-phase motor. The driving shaft of the motor is dynamically coupled to the rotating shaft of the active roller 12.

[0054] The sensor unit is arranged in the conveying direction of the conveying mechanism 1. A loading station and a detection station are provided in the conveying direction of the conveying mechanism 1. The loading station corresponds to the loading station, and the detection station corresponds to the detection station. The detection device is located at the detection station, and the distance between the loading station and the detection station is defined as a preset distance.

[0055] The sensor unit includes sensors. At least one sensor is installed at the loading station to detect whether the object 7 is placed on the conveyor belt 14 and is at the loading position. At least one sensor is installed at the detection station to detect whether the object 7 moves along the conveyor belt 14 to the detection position. The sensor can be a photoelectric sensor, infrared sensor, ultrasonic sensor, lidar, or other sensor. The following sensor description uses a photoelectric sensor as an example.

[0056] The photoelectric sensor installed at the loading station is defined as a first sensor 31. If the inspected object 7 is relatively short, a first sensor group is installed at the loading station. The first sensor group includes two first sensors 31. The two first sensors 31 are symmetrically distributed about the center plane of the support beam 112. The two first sensors 31 are installed on the first and second sides of the support beam 112, respectively. One first sensor 31 serves as a transmitter, and the other first sensor 31 serves as a receiver. If the inspected object 7 is relatively long, two first sensor groups are installed at the loading station. The spacing between the two first sensor groups is adapted to the length of the inspected object 7. The two first sensor groups are used to detect whether the inspected object 7 is in the loading position. It is understood that, depending on the length of the inspected object 7, more than two first sensor groups 31 may be provided at the loading station.

[0057] The photoelectric sensor installed at the inspection station is defined as a second sensor 32. Depending on the length of the inspected object 7, one, two, or more second sensor groups can be installed at the inspection station. Each second sensor group includes two second sensors 32, which are symmetrically distributed about the center plane of the support beam 112. The two second sensors 32 are installed on the first side and the second side of the support beam 112, respectively. One second sensor 32 acts as a transmitter, and the other second sensor 32 acts as a receiver.

[0058] The driving mechanism 2 and the sensor unit are both communicatively connected to the control unit 9 .

[0059] The object 7 to be inspected can be placed on the conveyor belt 14 by a transfer device. When the object 7 is placed on the conveyor belt 14 and is located at the loading position, the object 7 is within the sensing area of ​​the first sensor group. The first sensor 31 sends a first sensing signal to the control unit 9. The control unit 9 receives the first sensing signal and controls the state of the drive mechanism 2. The object 7 to be inspected moves to the detection position along the conveyor belt 14. When the object 7 is within the sensing area of ​​the second sensor group, the second sensor 32 sends a second sensing signal to the control unit 9. The control unit 9 receives the second sensing signal and controls the state of the drive mechanism 2.

[0060] The working process of the conveying device is described in detail below.

[0061] Before the object 7 is placed on the conveyor belt 14, the motor is turned off and the conveyor belt 14 is stationary. When the object 7 is placed on the conveyor belt 14, the object 7 is within the sensing area of ​​the first sensor 31. The first sensor 31 sends a first sensing signal to the control unit 9. The control unit 9 receives the first sensing signal and starts the motor. The motor is now in the first state, which is the working state.

[0062] After the motor is started, it drives the active roller 12 to rotate, which in turn drives the conveyor belt 14 to rotate. The object 7 to be inspected moves along the conveyor belt 14 from the loading position to the detection position. After the object 7 to be inspected moves to the detection position, it is within the sensing area of ​​the second sensor 32. The second sensor 32 sends a second sensing signal to the control unit 9. The control unit 9 receives the second sensing signal and controls the motor to turn off. The motor is now in the second state, which is the non-operating state.

[0063] After the motor is turned off, the active roller 12 stops rotating, the conveyor belt 14 is in a stationary state, the object 7 is in the detection position, and the object 7 is located in the detection area of ​​the detection device, and the detection device detects the object 7.

[0064] The first sensor 31 senses the loading position of the inspected object 7, and the second sensor 32 senses the detection position of the inspected object 7. The control unit 9 receives the sensing signals from the sensor units and controls the drive mechanism 2 to be in the first state or the second state, so that the inspected object 7 can be accurately moved from the loading position to the detection position.

[0065] Optionally, after the inspection of the inspected object 7 is completed, the control unit 9 receives a detection signal sent by the detection device, which is a detection completion signal. Based on the detection completion signal, the control unit 9 controls the motor to start, and the inspected object 7 moves along the conveyor belt 14 toward the unloading station. When the inspected object 7 moves to the unloading station, the motor is turned off, and the inspected object 7 is further transported to the next process.

[0066] Optionally, after the inspection of the inspected object 7 is completed, the control unit 9 receives a inspection completion signal sent by the inspection device and can directly take away the inspected object 7 after the inspection is completed at the inspection position.

[0067] In an embodiment of the present utility model, the sensor unit is used to sense the position information of the inspected object 7 on the conveyor belt 14. The control unit 9 controls the driving mechanism 2 to be in the first state or the second state according to the sensing signal of the sensor unit, so that the inspected object 7 is accurately moved from the loading position to the detection position, ensuring the position accuracy of the inspected object 7 at the detection position.

[0068] In an optional embodiment, the conveying device also includes a feedback unit, which is communicatively connected to the control unit 9; the feedback unit is configured to detect second position information of the inspected object 7 on the conveyor belt 14; the control unit 9 controls the driving mechanism 2 to be in the second state based on the second position information detected by the feedback unit.

[0069] Specifically, if the detection device includes a detection channel, the object 7 to be detected must be detected within the detection channel. If it is inconvenient to install a sensor at the detection location, the second position information of the object 7 to be detected on the conveyor belt 14 can be detected using the feedback unit. Alternatively, if the radiation source of the detection device emits a radiation beam to detect the object 7, and if the sensor is a photoelectric sensor, and the light beam emitted by the photoelectric sensor affects the detection, the second position information of the object 7 to be detected on the conveyor belt 14 can be detected using the feedback unit.

[0070] The feedback unit includes an encoder, which is installed on the active roller 12 or the driven roller 13. The encoder is used to measure the rotation angle of the active roller 12 or the driven roller 13. According to the rotation angle of the active roller 12 or the driven roller 13, the displacement of the conveyor belt 14 is calculated. According to the displacement of the conveyor belt 14, the position of the inspected object 7 is precisely controlled.

[0071] For example, the encoder is installed on the driven roller 13, and the distance between the loading position and the detection position is a preset distance. When the rotation angular velocity and radius of the driven roller 13 are known, the first target angle that the driven roller 13 needs to rotate when the conveyor belt 14 moves from the loading position to the detection position is calculated from the preset distance.

[0072] After the motor starts, the encoder begins detecting the rotation angle of the driven roller 13. If the first real-time angle detected by the encoder is equal to the first target angle, it indicates that the object 7 has moved from the loading position to the detection position along with the conveyor belt 14. The control unit 9 receives the first angle signal from the encoder and determines that the object 7 has reached the detection position. The control unit 9 controls the motor to turn off, and the detection device begins detecting the object 7.

[0073] For example, the encoder is installed on the active roller 12, and the distance between the loading position and the detection position is a preset distance. When the rotation angular velocity and radius of the active roller 12 are known, the second target angle that the active roller 12 needs to rotate to when the conveyor belt 14 moves from the loading position to the detection position is calculated from the preset distance.

[0074] After the motor is started, the encoder begins to detect the rotation angle of the active roller 12. If the second real-time angle detected by the encoder is equal to the second target angle, it indicates that the object 7 to be inspected has moved from the loading position to the detection position along with the conveyor belt 14. The control unit 9 receives the second angle signal from the encoder and determines that the object 7 to be inspected has reached the detection position. The control unit 9 controls the motor to turn off, and the detection device begins to inspect the object 7 to be inspected.

[0075] After the motor is started, the displacement of the conveyor belt 14 is detected based on the rotation angle of the driven roller 13 or the rotation angle of the active roller 12 detected by the encoder, which can achieve precise control of the displacement of the conveyor belt 14 and accurately feedback the position of the object 7 being inspected.

[0076] like Figure 7 As shown, in an optional embodiment, the feedback unit includes a first encoder 41, which is provided on the driven roller 13. The first encoder 41 is used to detect a first real-time angle of rotation of the driven roller 13, and obtain second position information based on the first real-time angle.

[0077] Specifically, the feedback unit includes a first encoder 41 . The first encoder 41 is installed on the driven roller 13 . The first encoder 41 is used to detect a first real-time rotation angle of the driven roller 13 in real time.

[0078] The first target angle that the driven roller 13 needs to rotate to when the conveyor belt 14 moves from the loading position to the detection position is calculated based on the preset distance, the angular velocity of the driven roller 13 and the radius of the driven roller 13 .

[0079] The first sensor 31 detects that the inspected object 7 is at the loading position. The first sensor 31 sends a first sensing signal to the control unit 9. The control unit 9 receives the first sensing signal and controls the motor to start. After the motor starts, the first encoder 41 detects the rotation angle of the driven roller 13 in real time. The first real-time angle detected by the first encoder 41 is equal to the first target angle, indicating that the inspected object 7 has now moved to the inspection position along with the conveyor belt 14. The first encoder 41 sends a first angle signal to the control unit 9. The control unit 9 receives the first angle signal and controls the motor to shut down. After that, the detection device begins to detect the inspected object 7.

[0080] The rotation angle of the driven roller 13 can more accurately reflect the distance the conveyor belt 14 moves, thereby facilitating a more accurate reflection of the position of the inspected object 7 .

[0081] like Figure 6 As shown, in an optional embodiment, the feedback unit further includes a second encoder 42 . The second encoder 42 is provided on the active roller 12 . The second encoder 42 is used to detect a second real-time angle of rotation of the active roller 12 .

[0082] Specifically, the feedback unit further includes a second encoder 42 , which is mounted on the active roller 12 or on the motor. The second encoder 42 is used to detect a second real-time angle of rotation of the active roller 12 in real time.

[0083] The second target angle that the active roller 12 needs to rotate when the conveyor belt 14 moves from the loading position to the detection position is calculated based on the preset distance, the angular velocity of the active roller 12 and the radius of the active roller 12 .

[0084] Whether the inspected object 7 has moved to the detection position can be determined by detecting the second real-time angle of rotation of the active roller 12. When the inspected object 7 is in the loading position and the control unit 9 controls the motor to start, the second encoder 42 detects the rotation angle of the active roller 12 in real time. The second real-time angle detected by the second encoder 42 is equal to the second target angle, indicating that the inspected object 7 has now moved to the detection position along with the conveyor belt 14. The second encoder 42 sends a second angle signal to the control unit 9. The control unit 9 receives the second angle signal and controls the motor to turn off. After that, the detection device begins to detect the inspected object 7.

[0085] In addition, it is possible to determine whether the rotations of the driven roller 13 and the active roller 12 are synchronized by comparing the first real-time angle with the second real-time angle.

[0086] Optionally, the diameter of the driven roller 13 is equal to the diameter of the active roller 12 , and the second target angle is equal to the first target angle.

[0087] If the first real-time angle detected by the first encoder 41 is equal to the second real-time angle detected by the second encoder 42 within the preset time, it indicates that the driven roller 13 and the active roller 12 rotate synchronously. The preset time is set according to actual needs and can be 2 seconds, 4 seconds, 6 seconds, etc.

[0088] If the first real-time angle detected by the first encoder 41 is less than the second real-time angle detected by the second encoder 42 within a preset time period, it indicates that the driven roller 13 and the driving roller 12 are rotating out of sync. In this case, the motor needs to be turned off and the conveyor belt 14, driving roller 12, and driven roller 13 components need to be repaired.

[0089] Optionally, the diameter of the driven roller 13 is smaller than that of the active roller 12 , and the second target angle is smaller than the first target angle. The ratio of the first real-time angle to the second real-time angle should be equal to the ratio of the diameter of the active roller 12 to the diameter of the driven roller 13 .

[0090] If within the preset time period, the ratio of the first real-time angle to the second real-time angle is equal to the ratio of the diameter of the active roller 12 to the diameter of the driven roller 13 , it indicates that the driven roller 13 and the active roller 12 rotate synchronously.

[0091] If the ratio of the first real-time angle to the second real-time angle is less than the ratio of the diameter of the active roller 12 to the diameter of the driven roller 13 within the preset time period, it indicates that the driven roller 13 and the active roller 12 are rotating out of sync. In this case, the motor needs to be turned off and the conveyor belt 14, active roller 12, and driven roller 13 components need to be repaired.

[0092] Thus, the position of the inspected object 7 can be accurately detected by the first real-time angle detected by the first encoder 41 and the second real-time angle detected by the second encoder 42. Furthermore, based on the comparison of the first real-time angle and the second real-time angle, feedback can be provided on whether the rotation of the driven roller 13 and the driving roller 12 remains synchronized, ensuring that the first real-time angle accurately reflects the position of the inspected object 7.

[0093] like Figure 6 、 Figure 7 and Figure 8 As shown, in an optional embodiment, the driving roller 12 includes a first rotating shaft, a driving wheel 121, and a first synchronous pulley 122. The driving wheel 121 is sleeved on the first rotating shaft, and two first synchronous pulleys 122 are sleeved on the first rotating shaft, and the two first synchronous pulleys 122 are located on opposite sides of the driving wheel 121. The driven roller 13 includes a second rotating shaft, a driven wheel 131, and a second synchronous pulley 132. The driven wheel 131 is sleeved on the second rotating shaft, and two second synchronous pulleys 132 are sleeved on the second rotating shaft, and the two second synchronous pulleys 132 are located on opposite sides of the driven wheel 131. The conveyor belt 14 includes a flat belt 141 and a synchronous belt 142 connected to both sides of the flat belt 141. The flat belt 141 is sleeved on the driving wheel 121 and the driven wheel 131, and the synchronous belt 142 is sleeved on the first synchronous pulley 122 and the second synchronous pulley 132.

[0094] Specifically, the driving roller 12 includes a first rotating shaft, a driving pulley 121, and a first synchronous pulley 122. The driving pulley 121 is sleeved on the first rotating shaft. Two first synchronous pulleys 122 are sleeved on the first rotating shaft and are located on opposite sides of the driving pulley 121. The driving pulley 121 is a smooth pulley. The diameter of the driving pulley 121 is equal to the diameter of the first synchronous pulley 122.

[0095] The mounting frame 11 further includes two first mounting seats 113, and both ends of the first rotating shaft are rotatably connected to the two first mounting seats 113. The two first mounting seats 113 can be screwed to the first end of the support beam 112, and the two first mounting seats 113 are respectively located on the first side and the second side of the support beam 112. The first rotating shaft is rotatably connected to the two first mounting seats 113, thereby rotatably mounting the active roller 12 to the first end of the support beam 112.

[0096] The driven roller 13 includes a second rotating shaft, a driven pulley 131, and a second synchronous pulley 132. The driven pulley 131 is sleeved on the second rotating shaft. Two second synchronous pulleys 132 are sleeved on the second rotating shaft and are located on opposite sides of the driven pulley 131. The driven pulley 131 is a smooth pulley. The diameter of the driven pulley 131 is equal to the diameter of the second synchronous pulley 132.

[0097] The mounting frame 11 further includes two second mounting seats 114, and both ends of the second rotating shaft are rotatably connected to the two second mounting seats 114. The two second mounting seats 114 can be screwed to the second end of the support beam 112, and the two second mounting seats 114 are respectively located on the first side and the second side of the support beam 112. The second rotating shaft is rotatably connected to the two second mounting seats 114, thereby rotatably mounting the driven roller 13 to the second end of the support beam 112.

[0098] The conveyor belt 14 is composed of a flat belt 141 and two synchronous belts 142. That is, the flat belt 141 has two opposite sides, one side of the flat belt 141 is connected to one synchronous belt 142, and the other side of the flat belt 141 is connected to the other synchronous belt 142. The width of the flat belt 141 is adapted to the length of the driving pulley 121 and the driven pulley 131, and the width of the synchronous belt 142 is adapted to the length of the first synchronous pulley 122 and the second synchronous pulley 132.

[0099] The flat belt 141 is sleeved on the driving pulley 121 and the driven pulley 131, and the synchronous belt 142 is sleeved on the first synchronous pulley 122 and the second synchronous pulley 132. It can be understood that the width of the flat belt 141 is greater than the width of the synchronous belt 142, and the flat belt 141 is used to place the inspected object 7.

[0100] When the conveyor belt 14 is a flat belt as a whole, it is easy for the conveyor belt 14 to slip during rotation, causing the movement of the conveyor belt 14 to be out of sync with the movement of the drive mechanism 2 , affecting the accurate detection of the position of the inspected object 7 .

[0101] The flat belt 141 and the synchronous belt 142 are used in combination. The synchronous belt 142 is meshed and connected with the first synchronous pulley 122 and the second synchronous pulley 132. The two synchronous belts 142 can prevent the conveyor belt 14 from slipping during rotation, ensure the synchronization of the conveyor belt 14 with the active roller 12 and the driven roller 13, and thus facilitate accurate detection of the position of the object 7 to be inspected.

[0102] like Figure 4 and Figure 5 As shown, in an optional embodiment, the conveying device further includes a support member 5 , which is disposed on the top of the mounting frame 11 , and is used to support the flat belt 141 .

[0103] Specifically, the conveying device further includes a support member 5 for supporting the conveyor belt 14. The support member 5 includes a connecting portion and a supporting portion 53. The connecting portion can be connected to the longitudinal beam of the support beam 112 by welding, screwing, or clamping. The support member 5 can be formed by a plate bending process.

[0104] Optionally, the support member 5 is U-shaped, and the connecting portion includes a vertical connecting portion, the end of which is bent 90 degrees and extended in the horizontal direction to form a supporting portion 53, which can be connected to the inner side surface of the longitudinal beam of the support beam 112.

[0105] Optionally, the support member 5 is in a cross shape, and the connecting part includes a horizontal connecting part 51 and a vertical connecting part 52. The horizontal connecting part 51 is bent 90 degrees in the vertical direction and extends along the vertical direction to form the vertical connecting part 52. The vertical connecting part 52 is bent 90 degrees in the horizontal direction and extends along the horizontal direction to form the supporting part 53. The vertical connecting part 52 is used to realize the transition from the horizontal connecting part 51 to the supporting part 53. The horizontal connecting part 51 can be connected to the top surface of the longitudinal beam of the support beam 112.

[0106] The width of the support portion 53 matches the width of the flat belt 141, and the support portion 53 contacts or is in close proximity to the inner surface of the flat belt 141. When the object 7 to be inspected is placed on the conveyor belt 14, the object 7 contacts the outer surface of the flat belt 141. The support portion 53 effectively supports the flat belt 141, effectively preventing the flat belt 141 from partially concave due to the weight of the object 7. This maintains the flatness of the conveying surface of the conveyor belt 14, ensuring smooth transportation of the object 7 by the conveyor belt 14.

[0107] like Figure 1 、 Figure 2 and Figure 3 As shown, in an optional embodiment, the conveying device further includes a tensioning mechanism 6 ; the tensioning mechanism 6 is disposed at the bottom of the mounting frame 11 , and the tensioning mechanism 6 includes a tensioning roller 61 , which is suitable for moving in a vertical direction to adjust the tightness of the conveyor belt 14 .

[0108] Specifically, the tensioning mechanism 6 includes a tensioning roller 61, and the mounting frame 11 also includes two third mounting seats 115, one located on the first side and the other on the second side of the support beam 112. The tensioning roller 61 includes a first core shaft and a first rotating cylinder rotatably connected to the first core shaft. The ends of the first core shaft are respectively connected to the two third mounting seats 115. The inner surface of the conveyor belt 14 is in rolling contact with the first rotating cylinder.

[0109] The first core shaft is movably mounted on the third mounting seat 115 in the vertical direction. The first core shaft is moved upward or downward in the vertical direction to adjust the height of the tensioning roller 61 to adjust the tightness of the conveyor belt 14 so that the conveyor belt 14 maintains an appropriate tightness.

[0110] Furthermore, the tensioning mechanism 6 includes two rollers 62, located on opposite sides of the tensioning roller 61 and above it. The rollers 62 include a second mandrel and a second rotating cylinder rotatably connected to the second mandrel. The ends of the second mandrel are respectively connected to two fourth mounting blocks. The outer surface of the conveyor belt 14 is in rolling contact with the second rotating cylinder. The placement of the rollers 62 on either side of the tensioning roller 61 prevents slack in the conveyor belt 14, ensuring sufficient tension on the conveyor belt 14.

[0111] Furthermore, the first encoder 41 is used to detect a first real-time angle of rotation of the driven roller 13, and the second encoder 42 is used to detect a second real-time angle of rotation of the active roller 12. If the active roller 12 and the driven roller 13 have the same diameter, and the object 7 to be inspected moves from the loading position to the inspection position, the values ​​of the first real-time angle and the second real-time angle should be equal.

[0112] If the first real-time angle is smaller than the second real-time angle, it indicates that the conveyor belt 14 is too loose or slipping. When the active roller 12 rotates to the second target angle, the displacement of the conveyor belt 14 is smaller than the distance between the loading position and the detection position. At this time, the object to be inspected 7 has not moved to the detection position. At this time, the detection of the object to be inspected 7 will affect the detection accuracy.

[0113] The comparison of the first real-time angle and the second real-time angle detected by the first encoder 41 and the second encoder 42 can provide feedback on the tension of the conveyor belt 14. If the conveyor belt 14 is too loose, the tensioning mechanism 6 can be adjusted to ensure that the conveyor belt 14 is properly tensioned to ensure detection accuracy.

[0114] like Figure 9 As shown, an embodiment of the present invention further provides a detection system, which includes a conveying device and a detection device. The detection device is arranged in the conveying direction of the conveying device, wherein the conveying device is used to convey the inspected object 7 from a first position to a second position, and the detection device is used to detect the inspected object 7.

[0115] The structure of the conveyor device is as described above. The loading station and the detection station are located along the conveying direction of the conveyor device. The detection device includes a radiation source 81 and a detector 82, which are located at the detection station. Optionally, the radiation source 81 and the detector 82 are relatively fixedly mounted at the detection station. For example, the radiation source 81 is mounted on the first side of the conveyor belt 14, and the detector 82 is mounted on the second side of the conveyor belt 14. Optionally, the radiation source 81 and the detector 82 are rotatably mounted at the detection station.

[0116] The radiation source 81 emits a radiation beam to form a scanning area. The detector 82 is used to detect the projection data formed by the radiation beam passing through the object 7 as the object 7 passes through the scanning area. The imaging unit generates a scanned image based on the projection data to detect whether the object 7 has defects.

[0117] At the loading station, two first sensor groups are used to detect whether the object 7 is in the loading position. At the detection station, a first encoder 41 is used to detect whether the object 7 is in the detection position.

[0118] The object 7 to be inspected is placed on the conveyor belt 14 at the loading position. The object 7 is within the sensing area of ​​the two first sensor groups. The first sensor 31 sends a first sensing signal to the control unit 9. After receiving the first sensing signal, the control unit 9 activates the motor, causing the object 7 to move along the conveyor belt 14 toward the detection position.

[0119] After the motor starts, the first encoder 41 detects the first real-time angle of rotation of the driven roller 13. If the first real-time angle is equal to the first target angle, the object 7 has reached the detection position. The first encoder 41 sends a first angle signal to the control unit 9, which then turns the motor off. After the motor turns off, the conveyor belt 14 is stationary, the object 7 is in the detection position, and the detection device begins detecting the object 7.

[0120] The ray beam emitted by the ray source 81 passes through the inspected object 7 , and the detector 82 detects projection data formed after the ray beam passes through the inspected object 7 . The imaging unit generates a scanned image based on the projection data to implement detection of the inspected object 7 .

[0121] After the object 7 is inspected, the control unit 9 receives a detection completion signal from the detection device, controls the motor to start, and the object 7 moves toward the unloading position along the conveyor belt 14. When the object 7 moves to the unloading position, the control unit 9 controls the motor to shut down.

[0122] The first sensor 31 and the first encoder 41 are used to accurately detect the loading position and the detection position of the object 7 to ensure that the object 7 can be accurately moved to the detection position and detected at the detection position, thereby ensuring detection accuracy.

[0123] The above description is merely a specific embodiment of the present invention, and the scope of protection of this application is not limited thereto. Any changes or substitutions made within the spirit and principles of this invention shall be included within the scope of protection of this application. Therefore, the scope of protection of this application shall be subject to the scope of protection of the claims.

Claims

1. A conveying device, characterized in that: include: The conveying mechanism includes a mounting frame, a driving roller, a driven roller and a conveyor belt, wherein the driving roller and the driven roller are rotatably mounted on the mounting frame, the conveyor belt is sleeved on the driving roller and the driven roller, and the conveyor belt is used to transport the inspected object; A driving mechanism connected to the active roller and configured to drive the active roller to rotate; A sensor unit, configured to sense first position information and second position information of the inspected object on the conveyor belt; as well as A control unit, wherein the sensor unit and the drive mechanism are both in communication with the control unit, and the control unit controls the drive mechanism to be in a first state or a second state based on the first position information or the second position information. Wherein, in the first state, the conveyor belt conveys the inspected object; in the second state, the conveyor belt is in a stationary state.

2. The conveying device according to claim 1, wherein The sensor unit includes: a first sensor and a second sensor; The first sensor is provided at a first position in the conveying direction of the conveying mechanism, and the first sensor is capable of sending a first sensing signal to the control unit, and the control unit controls the driving mechanism to be in the first state based on the first sensing signal; and The second sensor is disposed at a second position in the conveying direction of the conveying mechanism. The second sensor can send a second sensing signal to the control unit. The control unit controls the driving mechanism to be in the second state based on the second sensing signal.

3. The conveying device according to claim 1, wherein It also includes: a feedback unit, which is in communication with the control unit; The feedback unit is configured to detect the second position information of the detected object on the conveyor belt; The control unit controls the driving mechanism to be in the second state based on the second position information detected by the feedback unit.

4. The conveying device according to claim 3, wherein: The feedback unit includes a first encoder, which is provided on the driven roller. The first encoder is used to detect a first real-time angle of rotation of the driven roller and obtain the second position information based on the first real-time angle.

5. The conveying device according to claim 3, wherein: The feedback unit further includes a second encoder, which is provided on the active roller and is used to detect a second real-time angle of rotation of the active roller. The conveying device according to claim 1 , wherein: The control unit is further configured to receive a detection signal, and based on the detection signal, control the driving mechanism to be in the first state, so as to transport the inspected object from the detection position to the unloading position.

7. The conveying device according to any one of claims 1 to 6, wherein: The active roller includes a first rotating shaft, a driving wheel and a first synchronous pulley, wherein the driving wheel is sleeved on the first rotating shaft, and two first synchronous pulleys are sleeved on the first rotating shaft, and the two first synchronous pulleys are located on opposite sides of the driving wheel; The driven roller includes a second rotating shaft, a driven wheel and a second synchronous pulley, the driven wheel is sleeved on the second rotating shaft, two second synchronous pulleys are sleeved on the second rotating shaft, and the two second synchronous pulleys are located on opposite sides of the driven wheel; and The conveyor belt includes a flat belt and a synchronous belt connected to both sides of the flat belt. The flat belt is sleeved on the driving wheel and the driven wheel, and the synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley.

8. The conveying device according to claim 7, wherein: Also included: a support member; The support member is arranged on the top of the mounting frame, and the support member is used to support the flat belt.

9. The conveying device according to any one of claims 1 to 6, wherein: Also included: a tensioning mechanism; The tensioning mechanism is arranged at the bottom of the mounting frame, and the tensioning mechanism includes a tensioning roller. The tensioning roller is suitable for moving in a vertical direction to adjust the tightness of the conveyor belt.

10. A detection system, characterized in that: include: The conveying device according to any one of claims 1 to 9; A detection device is arranged in the conveying direction of the conveying device, The conveying device is used to convey the inspected object from the first position to the second position, and the detecting device is used to detect the inspected object.

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