Patent Application
20250237617
The present disclosure relates to a field of security inspection technology, and in particular, to a conveying system for an inspection device.
At present, due to insufficient positioning accuracy of the conveying system of the inspection device, an object to be inspected may not be accurately positioned on a ray main beam surface of an imaging system of the inspection device. Especially for the inspection of some ultra-thin layers, if the positioning is not accurate, the obtained inspection image is difficult to meet the requirements for the quality of the ultra-thin layer image inspection.
In an aspect, a conveying system for an inspection device is provided, including:
According to an embodiment of the present disclosure, a second slide rail is further included. The second slide rail is fixed on the chassis. The second slide rail is configured to support the sliding mechanism. The lead screw may drive the sliding mechanism to slide on the second slide rail.
According to an embodiment of the present disclosure, the driving device includes a servo motor. One end of the lead screw is connected to an output end of the servo motor, and the other end of the lead screw is connected to the chassis.
According to an embodiment of the present disclosure, the sliding mechanism is provided with at least one push component. The push component may move with the sliding mechanism and be configured to push the object to be inspected to move on the first slide rail.
The push component includes:
According to an embodiment of the present disclosure, at least one knob is rotatably arranged on the lever and is configured as an eccentric structure.
The knob has a first position at which the knob protrudes from a carrying surface under a driving of an eccentric force and a second position at which the knob flips below the carrying surface under an action of an external force. The carrying surface is configured to place the object to be inspected.
When the sliding mechanism moves in an X direction, the knob is configured to push the object to be inspected to move in the X direction with the knob being at the first position.
According to an embodiment of the present disclosure, the knob has:
When the sliding mechanism moves in a negative direction of the X-axis, the guide surface collides with the object to be inspected to drive the knob to move to the second position.
According to an embodiment of the present disclosure, further including:
According to an embodiment of the present disclosure, the knob is rotatably disposed at one end of the sliding mechanism away from the push component, and the knob away from the push component is spaced apart from the knob of the push component in the X direction.
According to an embodiment of the present disclosure, a second transmission mechanism is further included. The second transmission mechanism is disposed on an exit side of the imaging system, and the second transmission mechanism is configured to convey the object to be inspected from the supporting structure.
According to an embodiment of the present disclosure, a conveying method of the second transmission mechanism includes an unpowered conveying.
According to an embodiment of the present disclosure, the conveying method of the second transmission mechanism includes a belt conveyer conveying, a power roller conveying, a synchronous belt conveying, or a lead screw conveying.
According to an embodiment of the present disclosure, the imaging system includes a CT imaging system or a DR imaging system.
According to an embodiment of the present disclosure, protective covers are provided on both the entrance side and the exit side of the imaging system. The protective covers are configured to shield a radiation ray of the imaging system.
In another aspect, a conveying system for an inspection device is provided, including:
The first transmission mechanism includes:
According to an embodiment of the present disclosure, the conveying system for the inspection device may at least use the lead screw for transmission, thereby accurately positioning the object to be inspected on the inspection surface of the imaging system of the inspection device, effectively solving the problem of insufficient positioning accuracy of the conveying system of the inspection device, and meeting the requirements of certain products for image inspection quality.
With reference to the accompanying drawings in the following text, the other purposes and advantages of the present disclosure will be apparent and may help to have a comprehensive understanding of the present disclosure.
In the figures, 1. Imaging system; 11. Inspection surface; 2. Object to be inspected; 3. First transmission mechanism; 31. Chassis; 32. Driving device; 33. Lead screw; 34. Sliding mechanism; 35. First slide rail; 36. Push component; 361. lever; 362. Knob; 3621. Push surface; 3622. Guide surface; 3623. Limiting structure; 3624. Counterweight block; 37. Second slide rail; 38. Slide rail groove; 4. Supporting structure; 5. Second transmission mechanism; 6. Protective cover.
It should be noted that for clarity, in the drawings used to describe the embodiments of the present disclosure, the size of the structure or region may be enlarged or reduced, meaning that these drawings are not drawn to actual proportions.
For clarity of the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure provided, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.
Unless otherwise defined, the technical or scientific terms used herein shall have general meanings understood by those of ordinary skill in the art. The terms “first”, “second”, and the like used herein do not indicate any order, quantity, or importance, but are only for distinguishing different components. The term “comprise”, “include”, or the like means that a component or object before this term, covers a component or object listed after this term and its equivalents, rather than excluding other components or objects.
Herein, unless otherwise specified, directional terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside” may be used to represent orientation or positional relationships based on the drawings, only for the purpose of describing the present disclosure, rather than indicating or implying that the device, element or component referred to must have a specific orientation, be constructed or operated in a specific orientation. It will be understood that when the absolute position of the described object changes, the relative positional relationship they represent may also change accordingly. Therefore, these directional terms may not be understood as restrictions on the present disclosure.
An embodiment of the present disclosure provides a conveying system for an inspection device, including: an imaging system 1, which is used to scan and inspect an object to be inspected 2; a first transmission mechanism 3 disposed on an entrance side of the imaging system 1, and used to convey the object to be inspected 2 to the imaging system 1; and a supporting structure 4, which intersects an inspection surface 11 of the imaging system 1. The first transmission mechanism 3 may push the object to be inspected 2 to slide along the supporting structure 4 and pass through the imaging system 1. The first transmission mechanism 3 includes: a chassis 31; a driving device 32, which is fixed to the chassis 31; a lead screw 33, which is connected to the driving device 32, and may be driven by the driving device 32; a first slide rail 35, which is fixed on the chassis 31, where an extension direction of the first slide rail 35 is parallel to an extension direction of the lead screw 33; a sliding mechanism 34, which is connected to the lead screw 33, and the lead screw 33 may drive the sliding mechanism 34 to move, so that the sliding mechanism 34 may push the object to be inspected 2 to slide on the first slide rail 35 and the supporting structure 4. Through the above structural design and using the lead screw 33 for transmission, the object to be inspected 2 may be accurately positioned on an inspection surface 11 of the imaging system 1 of the inspection device, effectively solving the problem of insufficient positioning accuracy of the conveying system of the inspection device, and meeting the requirements of certain products for image inspection quality.
Another embodiment of the present disclosure also provides a conveying system for an inspection device, including: an imaging system 1, which is used to scan and inspect an object to be inspected 2; a first transmission mechanism 3 disposed on an entrance side of the imaging system 1, and used to convey the object to be inspected 2 to the imaging system 1; and a supporting structure 4, which intersects an inspection surface 11 of the imaging system 1, where the first transmission mechanism 3 may push the object to be inspected 2 to slide along the supporting structure 4 and pass through the imaging system 1. The first transmission mechanism 3 includes: a chassis 31; a driving device 32, which is fixed to chassis 31; a synchronous belt, which is connected to the driving device 32 and may be driven by the driving device 32; a first slide rail 35, which is fixed on the chassis 31, where the end of the first slide rail 35 is matched with and connected to the supporting structure 4, and the first slide rail 35 is used to support the object to be inspected 2 and convey the object to be inspected 2 to the supporting structure 4; a sliding mechanism 34, where the synchronous belt may drive the sliding mechanism 34 to move, so that the sliding mechanism 34 may push the object to be inspected 2 to slide on the first slide rail 35 and the supporting structure 4. Through the above structural design, the synchronous belt may be used to provide power for the sliding mechanism 34. When the sliding mechanism 34 moves with the synchronous belt, the sliding mechanism 34 may push the object to be inspected 2 to move, that is, the sliding mechanism 34 may continuously convey the object to be inspected 2 through the inspection of the imaging system 1.
As shown in
It should be noted that the above “designated position” refers to a position where the part to be inspected of the object to be inspected is precisely located in the inspection surface 11 of the imaging system 1 (i.e. a ray main beam surface of the imaging system 1), which facilitates scanning and inspection. The meaning of “designated location” in this article may be understood according to the content here, which will not be further repeated.
It should also be noted that in the embodiment of the present disclosure, the first transmission mechanism 3 and the supporting structure 4 are sequentially arranged along a conveying direction of the object to be inspected 2. In this case, there may be an interval with a certain width between the first transmission mechanism 3 and the supporting structure 4. It should be understood that the interval is allowed to exist as long as the object to be inspected 2 may smoothly pass through the interval in a process of being conveyed from the first transmission mechanism 3 to the supporting structure 4.
In another embodiment of the present disclosure, the first transmission mechanism 3 and the supporting structure 4 may also be an integrated structure, that is, the first transmission mechanism 3 and the supporting structure 4 belong to different sections of a same conveying device. For example, when the above-mentioned “same conveying device” is a conveyor belt, the first transmission mechanism 3 includes the front half of the conveyor belt, and the supporting structure 4 includes the rear half of the conveyor belt. In this case, the object to be inspected 2 may also be accurately positioned on the inspection surface 11 of the imaging system 1. It should be understood that the “conveyor belt” being taken as an example in the embodiment of the present disclosure is only for the convenience of understanding the present scheme, rather than a limitation on the conveying form of the first transmission mechanism 3 and the supporting structure 4.
In the embodiment of the present disclosure, there is also provided with a second slide rail 37. The second slide rail 37 is fixed on the chassis 31. The second slide rail 37 is used to support the sliding mechanism 34. The sliding mechanism 34 is provided with a slide rail groove 38 for matching with the second slide rail 37. The sliding mechanism 34 may slide on the second slide rail 37 through the slide rail groove 38. At the same time, the cooperation between the slide rail groove 38 and the second slide rail 37 plays a supporting role for the sliding mechanism 34, increasing the stability of the sliding mechanism 34 when moving. Moreover, an extension direction of the second slide rail 37 is parallel to an extension direction of the lead screw 33. When the lead screw 33 drives the sliding mechanism 34 to move, the second slide rail 37 may cooperate with the lead screw 33 to guide a movement direction of the sliding mechanism 34, ensuring that the direction in which the sliding mechanism 34 pushes the object to be inspected 2 to move does not deviate. For example, the second slide rail 37 may be a straight guide rail parallel to the extension direction of the lead screw 33.
Optionally, with reference to
In some exemplary embodiments, the driving device 32 includes a servo motor. The servo motor may convert voltage signals into torque and speed to drive and control the object. The rotor speed of the servo motor is controlled by input signals and the servo motor may react quickly. In an automatic control system, the received electrical signals may be converted into angular displacement or angular velocity output on the motor shaft, and the accuracy of its control position is very accurate. One end of the lead screw 33 is connected to an output terminal of the servo motor, and the other end of the lead screw 33 is connected to the chassis 31 and the lead screw 33 may rotate relative to the chassis 31 with the central axis of the lead screw 33 as the rotating axis.
The forward and reverse rotation of the servo motor may drive the lead screw 33 to drive the sliding mechanism 34 to reciprocally move along the second slide rail 37 in both directions, achieving the conveying of the object to be inspected 2 in batches.
With reference to
Moreover, a length between a position, at which the sliding mechanism 34 is connected to the lead screw 33, and the push component 36 should not be less than a length of the supporting structure 4, so that when the object to be inspected 2 is conveyed from the first slide rail 35 to the supporting structure 4, one end of the sliding mechanism 34 disposed with the push component 36 may protrude outside from the second slide rail 37, thereby continuing to push the object to be inspected 2 to slide on the supporting structure 4 until the object to be inspected 2 passes through the inspection surface 11 of the imaging system 2 and ultimately comes out from the exit side of the imaging system 2.
In the embodiment of the present disclosure, the push component 36 includes a lever 361 and a knob 362. Specifically, as shown in
It should be noted that in the field of radiation inspection, there is a situation where a size of the inspection region of the object to be inspected is relatively small. For example, in an inspection process of a lithium battery, it is required to inspect the thin film or adhesive layer of the lithium battery, but the thickness of the thin film or adhesive layer of the lithium battery is relatively small. Therefore, for the convenience of description, an axis parallel to the inspection surface 11 of the imaging system 1 is defined as the Z-axis in this article, and the Z-axis is parallel to the upper surface of the first slide rail 35. An axis parallel to the forward direction of the object to be inspected 2 is defined as an X-axis. A Y-axis is defined to be perpendicular to both the X-axis and the Z-axis.
It may be understood that in some embodiments, the number of knobs 362 mounted on the lever 361 may be more than one, so that the knobs 362 may be applicable to apply a push force to the object to be inspected 2 at a plurality of positions.
As mentioned above, in the embodiment of the present disclosure, when the sliding mechanism 34 moves, it has the function of pushing the object to be inspected 2 to move in the X direction through the knob 362. Moreover, after a former object to be inspected 2 is pushed away from an initial position on the first slide rail 35 by the sliding mechanism 34, the next object to be inspected 2 will be placed at the initial position of the former object to be inspected 2 on the first slide rail 35 after a certain time interval. When the sliding mechanism 34 drives the former object to be inspected 2 to move to the next process in the X direction, the driving device 32 may drive the sliding mechanism 34 to move backwards and cause the knob 362 to abut onto the end face of the object to be inspected 2 facing away from a movement direction to push the object to be inspected 2 to move in the X direction. In order to achieve continuous conveying of the object to be inspected 2 by the first transmission mechanism 3, the knob 362 needs to be rotatably disposed on the lever 361 in the embodiment of the present disclosure, and the knob 362 may rotate around an axis direction of the lever 361. The knob 362 is configured as an eccentric structure, where the knob 362 has a first position at which the knob 362 protrudes outside from the carrying surface under the driving of an eccentric force and a second position at which the knob 362 flips below the carrying surface under an action of the external force. When the sliding mechanism 34 moves in the X direction, the knob 362 is used to push the object to be inspected 2 to move in the X direction when the knob 362 is in the first position.
Specifically, as shown in
As shown in
In the embodiment of the present disclosure, a knob 362 is rotatably provided at one end of the sliding mechanism 34 away from the push component 36, and this knob 362 is spaced apart from the knob 362 of the push component 36 in the X direction. For ease of description, the knob 362 close to the imaging system 1 on the sliding mechanism 34 is referred to as a first knob, and the knob 362 away from the imaging system 1 is referred to as a second knob. Through the above design, when the first knob pushes the former object to be inspected 2, the second knob will simultaneously push the next object to be inspected 2. In this way, the next object to be inspected 2 may be synchronously pushed to a position closer to the imaging system 1, saving time for the first knob to return and push the next object to be inspected 2, and improving the conveying efficiency.
Specifically, when the first transmission mechanism 3 starts working, the first object to be inspected 2 is placed at the initial position of the first slide rail 35. In this case, the first object to be inspected 2 is pushed to move by the first knob until the first object to be inspected 2 passes through the inspection surface 11 of the imaging system 1 and finally arrives at the second transmission mechanism 5. In the process of pushing the first object to be inspected 2 by the first knob, the second knob moves synchronously with the first knob and pushes a second object to be inspected 2 from an initial position to a position closer to the imaging system 1. This position is recorded as a middle position. In this way, when the first knob moves back in the negative direction of the X-axis, it only needs to move back to the middle position to be in contact with the second object to be inspected 2 and push the second object to be inspected 2 to move towards the imaging system 1. In the process of pushing the second object to be inspected 2 by the first knob, the second knob may push a third object to be inspected 2 from an initial position to the middle position. From this reciprocating, continuously conveying the object to be inspected may be achieved. By disposing the second knob, it is possible to reduce the distance that the first knob moves back each time the object to be inspected 2 is picked up, thereby improving the transferring efficiency of the object to be inspected 2.
It should be noted that the number of knobs 362 in the embodiment of the present disclosure is only illustrative, rather than the only limitation on the number of knobs 362. Those of skill in the art may dispose any number of knobs 362 in the X direction on the sliding mechanism 34 according to actual needs.
Optionally, the supporting structure 4 includes a beam shaped structure that may be used to carry the sliding of the object to be inspected 2. Two ends of the beam shaped structure are respectively cooperated with and connected to the first transmission mechanism 3 and the second transmission mechanism 4. It should be noted that the rays in radiation imaging are prone to attenuation when passing through metal objects. Therefore, a carbon fiber material is preferred for the supporting structure 4 in the embodiment of the present disclosure.
In the embodiment of the present disclosure, the conveying system for the inspection device may further include a second transmission mechanism 5. The second transmission mechanism 5 is disposed on an exit side of the imaging system 1 and is cooperated with and connected to the supporting structure 4. The second transmission mechanism 5 is used to convey the object to be inspected 2 from the supporting structure 4. After the object to be inspected 2 passes the inspection of the imaging system 1, the object to be inspected 2 is conveyed to the waiting region through the second transmission mechanism 5, and waits for subsequent processing. Besides, by disposing the second transmission mechanism 5, the object to be inspected 2 may be conveyed to a position away from the imaging system 1, thereby avoiding an influence of the radiation when the object to be inspected 2 is taken out.
It should be noted that the connection relationship between the supporting structure 4 and the second transmission mechanism 5 is similar to the connection relationship between the first transmission mechanism 3 and the supporting structure 4. The connection relationship between the first transmission mechanism 3 and the supporting structure 4 has already been detailed in the previous text, which will not be repeated here.
Optionally, in the embodiment of the present disclosure, the conveying method of the second transmission mechanism 5 includes an unpowered conveying. That is, after the object to be inspected 2 is conveyed to the second transmission mechanism 5 by the supporting structure 4, the object to be inspected 2 may slide along the second transmission mechanism 5 under its own gravity, achieving the conveying of the object to be inspected 2. The conveying cost of this unpowered conveying method is relatively low, and it may ensure the normal conveying of the object to be inspected 2.
For example, with reference to
Optionally, in the embodiment of the present disclosure, the conveying method of the second transmission mechanism 5 may also include a power conveying method. The conveying distance of using the power conveying method is longer, the conveying process is more stable, and the conveying efficiency is higher. For example, the conveying method of the second transmission mechanism 5 may be various forms such as a belt conveyer conveying, a power roller conveying, a synchronous belt conveying or a lead screw conveying.
In the embodiment of the present disclosure, the imaging system 1 includes a CT imaging system or a DR imaging system for scanning and inspecting the object to be inspected 2.
Optionally, in some exemplary embodiments, the imaging system 1 is a CT imaging system. The CT imaging system includes structures such as optical machine and an inspector. The CT imaging is the process of scanning a layer with certain thickness of the object to be inspected 2 using an X-ray beam. The inspector receives the X-ray that passes through this layer, the X-ray is converted into visible light, and then converted into an electrical signal by a photoelectric converter, and then the electrical signal is converted into a digital signal by an analog/digital converter. After processing of a computer, the CT image is obtained. The CT imaging has high density resolution and better spatial resolution, resulting in clear images.
Optionally, in some exemplary embodiments, the imaging system 1 includes a DR imaging system. The DR imaging system includes structures such as an electronic cassette, a scanning controller, and an image monitor. The DR imaging is the process of directly converting X-ray photons into a digital image through an electronic cassette, resulting in a DR image. The DR imaging has fast speed, low radiation, higher spatial resolution, and low noise rate.
For example, when using CT imaging system 1 for scanning and inspecting, as the object to be inspected 2 may be transmitted by a servo motor driving the lead screw 33, the conveying position of the object to be inspected 2 may be accurately controlled. That is, it is possible to precisely control the object to be inspected 2 at a designated position on supporting structure 4. At this time, the part to be inspected of the object to be inspected 2 is precisely located on the X-ray main beam surface of the CT imaging system, which facilitates targeted scanning by the CT imaging system and improves inspection accuracy and inspection efficiency.
It should be noted that in the embodiment of the present disclosure, the CT imaging system is only used as an example to explain the scanning and inspecting process of the imaging system 1. However, it should not be understood as a limitation on the imaging method of the imaging system 1.
In the embodiment of the present disclosure, protective covers 6 are provided on both the entrance side and the exit side of the imaging system 1. The protective covers 6 are used to shield the radiation rays of the imaging system 1. Moreover, the protective covers 6 cover outside the first transmission mechanism 3, the supporting structure 4 and the second transmission mechanism 5, which may greatly isolate the radiation of scanning and inspecting rays and has a better radiation protection effect.
Furthermore, in the embodiment of the present disclosure, the protective cover 6 is formed by bending sheet metal, and the outer surface of the protective cover 6 is provided with a lead layer to enhance the radiation shielding effect.
The working principle of the conveying system for the inspection device in the embodiment of the present disclosure is that the first transmission mechanism 3, the supporting structure 4, and the second transmission mechanism 5 are all disposed inside the protective cover 6, which may weaken the radiation of the imaging system 1. In the first transmission mechanism 3, the servo motor drives the lead screw 33 to drive the sliding mechanism 34 to move along the second slide rail 37. A push component 36 is mounted on the sliding mechanism 34. The push component 36 pushes the object to be inspected 2 to move on the first slide rail 35 to the supporting structure 4 and slide along the supporting structure to the inspection surface 11 of the imaging system, and the object to be inspected 2 is inspected by the imaging system 1. After completing the inspection of the object to be inspected 2, the object to be inspected 2 moves out of the protective cover 6 along the second transmission mechanism 5.
It should be noted that the conveying system for the inspection device in the embodiment of the present disclosure is applicable to use in the security inspection field, especially for inspecting certain products that require high image inspection quality. For example, precise positioning of ultra-thin layers such as adhesive layers and thin films of batteries may be performed, so as to obtain high-quality inspection images. It should be understood that the object to be inspected of the conveying system in the embodiment of the present disclosure is not limited to the field of batteries.
The conveying system for the inspection device according to the embodiment of the present disclosure has at least an aspect of the following technical effects.
Although some embodiments of the entire technical concept of the present disclosure have been shown and explained, those of skill in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the entire technical concept of the present disclosure. The scope of the present disclosure is limited by the claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111172981.4 | Oct 2021 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/122501 | 9/29/2022 | WO |
