X-ray scanning molding device

By designing the camera set mechanism of the surface array camera and the linear array camera arranged in parallel in the X-ray scanning forming device, combining the camera switching device and the front and rear motion modules, the problem of slow detection speed in the prior art is solved, and efficient tank density and coil-sealing morphology detection is achieved.

CN112113985BActive Publication Date: 2025-03-11ZHAOQING CANNEED INSTR LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202011018490.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-09-24
Publication Date
2025-03-11
Estimated Expiration
2040-09-24

AI Technical Summary

Technical Problem

When the existing X-ray scanning molding device detects the tank density and the roll-sealing form, the surface array camera takes a long time to receive images, which affects the detection speed and working efficiency.

Method used

A camera group mechanism including a parallel array camera and a linear array camera is designed. Through the camera switching device and the front and rear motion module, the surface array camera and the linear array camera are switched according to the detection requirements to improve detection efficiency.

Benefits of technology

By combining the advantages of surface array cameras and linear array cameras, the accuracy of tank measurement images is achieved, while reducing measurement time and improving working efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN112113985B_ABST
    Figure CN112113985B_ABST
Patent Text Reader

Abstract

The X-ray scanning forming device of the present invention comprises a substrate, an X-ray emission source, a camera group mechanism arranged at the other end of the substrate, a measuring station and a swinging structure for swinging the substrate, the measuring station does not swing with the swinging structure and is arranged between the X-ray emission source and the camera group mechanism, the camera group mechanism comprises a parallel array camera and a linear array camera, a camera switching device for driving the array camera and the linear array camera to move perpendicular to the X-ray emission direction, and a forward and backward motion module for driving the array camera to move parallel to the X-ray emission direction. Through the above design, the array camera and the linear array camera are used together with the X-ray emission source for switching, the array camera is used to receive images when measuring the tightness and the sealing shape of the can body, and the linear array camera is used to receive images when measuring the overlap of the can body, which not only ensures the accuracy of the can body measurement image, but also reduces the measurement time and speeds up the work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of curling detection devices for two-piece cans, and in particular relates to an X-ray scanning molding device. Background Art

[0002] Two-piece cans refer to metal containers that consist of a can lid and a seamless can body with a bottom. The can body of this type of metal container is formed into a set shape by deep drawing. The forming method of this cup-shaped container is stamping, so two-piece cans are often called stamping cans. The side wall and bottom of the two-piece can body are an integral structure without any seams, which makes it have the advantages of high hygienic quality of the food inside, safe contents, light weight, material saving and simple forming process.

[0003] In the production process of two-piece cans, the finished can lid and bottom must be sealed after filling with materials. This process directly affects the sealing of the can. In this regard, after completing the edge sealing process for a batch of cans, multiple data such as the can curling shape, curling thickness, and tightness are usually tested. Currently, the relevant data detection of the can curling is measured by passing X-rays through the can curling to form an image. The existing X-ray scanning and forming devices on the market usually have only one X-ray emission source and a camera for receiving images. When the camera is a linear array camera, the camera cannot measure the tightness and sealing shape of the can well. When the camera is an area array camera, the camera takes a long time to receive the image, which affects the detection speed and greatly affects the work efficiency. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide an X-ray scanning forming device, comprising a substrate, an X-ray emission source installed at one end of the substrate, a camera group mechanism matched with the X-ray emission source and arranged at the other end of the substrate, a measuring station for placing the can body to be measured, and a swinging structure for swinging the substrate, the measuring station does not swing with the swinging structure and is arranged between the X-ray emission source and the camera group mechanism, the camera group mechanism comprises a parallel array camera and a line array camera, a camera switching device for driving the array camera and the line array camera to move perpendicular to the X-ray emission direction, and a forward and backward motion module for driving the array camera to move parallel to the X-ray emission direction. Through the above design, the array camera and the line array camera are used together with the X-ray emission source for switching, the array camera is used to receive images when measuring the tightness and the sealing shape of the can body, and the line array camera is used to receive images when measuring the overlap of the can body, which not only ensures the accuracy of the can body measurement image, but also reduces the measurement time and speeds up the work efficiency.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] The X-ray scanning forming device comprises a substrate, an X-ray emission source installed at one end of the substrate, a camera group mechanism matched with the X-ray emission source and arranged at the other end of the substrate, a measuring station for placing a tank body to be measured, and a swinging structure for swinging the substrate, wherein the measuring station does not swing with the swinging structure and is arranged between the X-ray emission source and the camera group mechanism, and the camera group mechanism comprises an area array camera and a linear array camera arranged in parallel, a camera switching device for driving the area array camera and the linear array camera to move perpendicular to the X-ray emission direction, and a forward and backward motion module for driving the area array camera to move parallel to the X-ray emission direction.

[0007] Furthermore, the swing structure includes a base plate, two first fixed frames fixed to the base plate, a swing screw rotatably arranged on the two first fixed frames, a swing motor driving the swing screw to rotate, a swing slider rotatably installed on the swing screw, a connecting rod, a connecting block, a second fixed frame fixed to the base plate, and a support seat hinged to the second fixed frame; one end of the connecting rod is hinged to the swing slider, and the other end is hinged to the connecting block, one end of the base plate is connected and fixed to the support seat, and the other end is connected and fixed to the connecting block.

[0008] Furthermore, the bottom plate is provided with two limiting plates on both sides of the base plate, the limiting plates are provided with arc grooves, and protrusions are provided at the positions of the two ends of the base plate corresponding to the arc grooves. When the base plate is swung and adjusted, the protrusions slide along the arc grooves.

[0009] Furthermore, the camera switching device includes a transverse slide groove fixed on the substrate, a first mounting plate slidably arranged on the transverse slide groove, and a transverse driving structure that drives the first mounting plate to move along the transverse slide groove, and the area array camera and the line array camera are both mounted on the first mounting plate.

[0010] Furthermore, the transverse driving structure includes a transverse screw rod arranged parallel to the transverse slide groove, a transverse slider rotatably arranged on the transverse screw rod, and a transverse motor driving the transverse screw rod to rotate. The first mounting plate is fixedly connected to the transverse slider, and the rotation of the transverse motor drives the transverse screw rod to rotate so as to realize the rotation and movement of the transverse slider along the transverse screw rod.

[0011] Furthermore, the forward and backward motion module includes a longitudinal slide groove fixed on the first mounting plate, a second mounting plate slidably arranged on the transverse slide groove, and a longitudinal driving structure driving the second mounting plate to move along the longitudinal slide groove, the longitudinal driving structure is similar to the transverse driving structure, the longitudinal slide groove is arranged perpendicular to the transverse slide groove, and the area array camera is fixedly mounted on the second mounting plate.

[0012] Furthermore, the longitudinal driving structure includes a longitudinal screw rod arranged parallel to the longitudinal slide groove, a longitudinal slider rotatably arranged on the longitudinal screw rod, and a longitudinal motor driving the longitudinal screw rod to rotate. The second mounting plate is fixedly connected to the longitudinal slider, and the rotation of the longitudinal motor drives the longitudinal screw rod to rotate so as to realize the rotation and movement of the longitudinal slider along the longitudinal screw rod.

[0013] Furthermore, a circular hole is provided in the middle of the substrate, and a bracket of the measuring station passes through the circular hole so that the measuring station is arranged between the X-ray emission source and the camera group mechanism.

[0014] Furthermore, the measuring station also includes a rotating structure for driving the measuring station to rotate, and the rotating structure includes a slewing bearing fixed to the measuring station, a synchronous pulley, a rotating synchronous belt tightly wrapped around the slewing bearing and the synchronous pulley, and a rotating motor that drives the synchronous pulley to rotate.

[0015] Furthermore, there are two measuring stations and they are double stations. The measuring station includes a station switching device, including a station slide groove perpendicular to the X-ray projection direction, a third mounting plate that can slide along the station slide groove, and a switching station driving structure that drives the third mounting plate to move. The switching station driving structure is similar to the lateral driving structure. The two measuring stations are arranged side by side on the third mounting plate along the station slide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The X-ray scanning forming device of the present invention comprises a substrate, an X-ray emission source installed at one end of the substrate, a camera group mechanism matched with the X-ray emission source and arranged at the other end of the substrate, a measuring station for placing the can body to be measured, and a swinging structure for swinging the substrate, the measuring station does not swing with the swinging structure and is arranged between the X-ray emission source and the camera group mechanism, the camera group mechanism comprises a surface array camera and a linear array camera arranged in parallel, a camera switching device for driving the surface array camera and the linear array camera to move perpendicular to the X-ray emission direction, and a forward and backward motion module for driving the surface array camera to move parallel to the X-ray emission direction. Through the above design, the surface array camera and the linear array camera are used together with the X-ray emission source for switching, the surface array camera is used to receive images when measuring the tightness and the sealing shape of the can body, and the linear array camera is used to receive images when measuring the overlap of the rolled edge of the can body, which not only ensures the accuracy of the measured image of the can body, but also reduces the measurement time and speeds up the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a preferred embodiment of the X-ray scanning and shaping device of the present invention;

[0019] Figure 2 It is a partial structural schematic diagram of a preferred embodiment of the X-ray scanning and shaping device of the present invention;

[0020] Figure 3 is a structural schematic diagram of a first embodiment of a swing structure of the present invention;

[0021] Figure 4 is a side view of a first embodiment of a swing structure of the present invention;

[0022] Figure 5 is a structural schematic diagram of a second embodiment of a swing structure of the present invention;

[0023] Figure 6 It is a side view of the second embodiment of the swing structure of the present invention.

[0024] Figure 7 It is a structural schematic diagram of a preferred embodiment of a measuring station of the present invention;

[0025] Figure 8 is a top cross-sectional view of a preferred embodiment of the measuring station of the present invention;

[0026] Fig. 9 It is a working view of the front and rear motion modules of the present invention at two distances.

[0027] In the figure: 3, X-ray scanning molding device; 31, substrate; 311, circular hole; 32, X-ray emission source; 33, camera group mechanism; 331, area array camera; 332, line array camera; 333, camera switching device; 334, front and rear movement module; 34, measuring station; 341, rotating structure; 3411, slewing bearing; 3412, synchronous pulley; 3413, rotating synchronous belt; 342, station switching device; 3421, station slide; 3422, third mounting plate; 3423, switching station motor; 35, swing structure; 351, first fixed frame; 352, swing lead screw; 353, swing motor; 354, swing slider; 355, connecting rod; 356, connecting block; 357, second fixed frame; 358, support seat; 361, rotating shaft; 362, adjusting screw; 363, nut; 37, limiting plate. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] The X-ray scanning molding device 3 of the present invention is as follows Figure 1-Figure 9As shown, it includes a substrate 31, an X-ray emission source 32 installed at one end of the substrate 31, a camera group mechanism 33 matched with the X-ray emission source 32 and arranged at the other end of the substrate 31, a measuring station 34 for placing the tank body to be measured, and a swinging structure 35 for swinging the substrate 31. The measuring station 34 is fixed to the bottom plate by a bracket and is arranged between the X-ray emission source 32 and the camera group mechanism 33. The camera group mechanism 33 includes an area array camera 331 and a line array camera 332 arranged in parallel, a camera switching device 333 for driving the area array camera 331 and the line array camera 332 to move perpendicular to the X-ray emission direction, and a forward and backward motion module 334 for driving the area array camera 331 to move parallel to the X-ray emission direction. Through the above design, the area array camera 331 and the line array camera 332 are used together with the X-ray emission source 32 for switching. When measuring the tightness and sealing shape of the can body, the area array camera 331 is used to receive the image, and when measuring the overlap of the can body, the line array camera 332 is used to receive the image, which not only ensures the accuracy of the tank body measurement image, but also can reduce the measurement time and improve work efficiency.

[0030] The X-ray scanning forming device 3 in this embodiment mainly passes the curling edge of the can body to be tested through X-rays and images it on the paired camera, and detects three sets of data on the curling overlap, curling shape and tightness of the can body to be tested through the imaged graphics. The can body to be tested is clamped and transported to the measuring station 34 by a mechanical claw, and then the X-ray emission source 32 emits X-rays to irradiate the curling edge of the can body to be tested at different angles and positions, and then images are formed on the corresponding camera, and finally the can body forming graphics are observed and tested on the industrial computer.

[0031] When measuring and observing the sealing morphology of the can body curling, it is only necessary to make the X-ray and the upper end surface of the can body in a flush state, and make the X-ray and the side curling of the can body to be measured tangent, and then the shape of the can body curling can be observed in the projected image; and when measuring the curling overlap and tightness of the can body curling, in order to ensure that the X-ray projection imaging image is only the image of one curling of the can body to be measured, it is necessary to place the upper end surface of the can body and the X-ray at a certain angle to ensure that the X-ray projection only passes through one curling to avoid affecting the measurement of the curling overlap and tightness data. In this regard, the present embodiment is provided with a swing structure 35, which includes two first fixed frames 351 fixed to the base plate, a swing screw 352 rotatably arranged on the two first fixed frames 351, a swing motor 353 driving the swing screw 352 to rotate, a swing slider 354 rotatably installed on the swing screw 352, a connecting rod 355, a connecting block 356 fixed to the bottom of the base plate 31, a second fixed frame 357 fixed to the base plate, and a support seat 358 hinged to the second fixed frame 357; one end of the connecting rod 355 is hinged to the swing slider 354, and the other end is hinged to the connecting block 356; one end of the base plate 31 is connected and fixed to the support seat 358, and the other end is connected and fixed to the connecting block 356. Through the above design, the swing motor 353 can be used to control the swing lead screw 352 to rotate forward, so that the swing slider 354 moves forward along the swing lead screw 352. At this time, the connecting rod 355 on the swing slider 354 also slowly rotates from the inclined state to the vertical state, and at the same time, the substrate 31 is lifted up, so that the end of the substrate 31 fixed with the connecting block 356 is tilted. At this time, the measuring station 34 does not move, and the end of the substrate 31 on which the X-ray source 32 is installed swings downward, and the side of the substrate 31 on which the camera group mechanism 33 is installed tilts upward, so that the X-rays emitted by the X-ray source 32 are inclined at a certain angle to the upper end surface of the tank body to be measured.

[0032] Another feasible implementation method (manual adjustment) is: the swing structure 35 includes two first fixing frames 351 fixed to the base plate, a rotating shaft 361 hinged to the two first fixing frames 351, an adjusting screw 362 perpendicular to the rotating shaft 361, two nuts 363 spaced apart on the adjusting screw 362, a second fixing frame 357 fixed to the base plate, and a supporting seat 358 hinged to the second fixing frame 357; one end of the base plate 31 is provided with a through hole corresponding to the adjusting screw 362, the through hole of the base plate 31 passes through the adjusting screw 362 and is fixed between the two nuts 363, and the base plate 31 is fixed on the supporting seat 358. Through the design of the swing structure 35, the X-ray source 32 is installed at one end of the substrate 31, and the camera group mechanism 33 is installed at the other end of the substrate 31, and the measuring station 34 is fixed on the bottom plate and does not swing therewith; when it is necessary to measure the curling overlap and tightness of the can body to be tested, it is only necessary to turn the nut 363 upward along the adjusting screw 362, so that the substrate 31 together with the support seat 358 below rotates around the second fixing frame 357. At this time, the side of the substrate 31 on which the camera group mechanism 33 is installed is tilted upward, and similarly, the side of the substrate 31 on which the X-ray source 32 is installed is tilted downward. When the substrate 31 swings but the measuring station 34 does not swing, the X-rays emitted by the X-ray source 32 are tilted upward and inclined at a certain angle to the upper end face of the can body to be tested on the measuring station 34.

[0033] Preferably, two long holes are formed at one end of the substrate 31 close to the emission source 32, and the support frame of the measuring station 34 passes through the long holes to realize that the measuring station 34 is arranged between the X-ray emission source 32 and the camera group mechanism 33. The slots formed by the long round holes are relatively long, so as to ensure that the substrate 31 will not collide with the support frame in the long holes during the swing adjustment process, and ensure that the can body to be measured on the measuring station 34 is in a horizontal state.

[0034] Preferably, there are two second fixing frames 357 and two supporting seats 358, which are respectively arranged at two ends of the same side of the bottom plate. The supporting seat 358 is a triangular structure, one corner of the supporting seat 358 is connected to the second fixing frame 357, and the side opposite to the hinge point is fixed to the base plate 31. This makes the connection between the base plate 31 and the swing structure 35 more stable.

[0035] Preferably, the bottom plate is provided with two limiting plates 37 on both sides of the base plate 31, and the limiting plates 37 are provided with arc grooves, and the two ends of the base plate 31 are provided with protrusions at positions corresponding to the arc grooves, and the protrusions slide along the arc grooves when the base plate 31 is swung and adjusted. When the angle of the swing structure 35 is adjusted, when the protrusion slides along the arc groove to the lowest limit position, the base plate 31 rotates to a position parallel to the upper end face of the tank body to be tested; on the contrary, when the protrusion slides along the arc groove to the highest limit position, the base plate 31 rotates to a position inclined at a certain angle to the upper end face of the tank body to be tested; this design can realize the rapid adjustment of the swing angle of the base plate 31.

[0036] When testing the three sets of data of the overlap of the rolled edge, the shape of the rolled seal and the tightness of the can body to be tested, the can body to be tested needs to be rotated to realize the projection imaging detection of all the rolled edges of the can body, so as to ensure that each section of the rolled edge can be projected and imaged, and to ensure the integrity and accuracy of the can body detection. In this regard, the measuring station 34 in this embodiment also includes a rotating structure 341 for driving the measuring station 34 to rotate, and the rotating structure 341 includes a slewing bearing 3411 fixed to the measuring station 34, a synchronous pulley 3412, a rotating synchronous belt 3413 tightly wrapped around the slewing bearing 3411 and the synchronous pulley 3412, and a rotating motor driving the synchronous pulley 3412 to rotate. The rotating motor rotates to drive the synchronous pulley 3412 to rotate together with the rotating synchronous belt 3413, and then the slewing bearing 3411 tightly wrapped by the rotating synchronous belt 3413 also rotates together to realize the rotation of the measuring station 34 fixed above the slewing bearing 3411. This design can achieve that when the above three sets of curling data are detected for the can body to be tested, the rotating structure 341 drives the can body to be tested to rotate, thereby achieving complete measurement of all curling edges of the can body.

[0037] Since it takes a certain amount of time to detect the three sets of data of the rolled edge overlap, the roll sealing shape and the tightness of the tank body to be tested, and the measurement time of the tank body external dimension measurement process is relatively fast, if the tank body waits for the previous tank body to complete the detection of all the three sets of data of the rolled edge overlap, the roll sealing shape and the tightness, the tank body will wait at the station of the tank external dimension measurement device. This method occupies the use station of the tank external dimension measurement device and affects the processing efficiency. Preferably, the measuring station 34 in this embodiment has two and double stations, and the measuring station 34 includes a station switching device 342, including a station slide 3421 perpendicular to the X-ray projection direction, a third mounting plate 3422 that can slide along the station slide 3421, and a switching station driving structure that drives the third mounting plate 3422 to move. The switching station driving structure is similar to the lateral driving structure. The two measuring stations 34 are arranged side by side on the third mounting plate 3422 along the station slide 3421. Through this design, the robot can place the cans that have completed the measurement of the external dimensions of the cans on two workstations respectively. At the same time, the cans on one workstation continue to be tested for three sets of data: curling overlap, curling shape and tightness. The other can that has completed the measurement of the external dimensions of the cans is waiting at the adjacent measuring workstation 34. At this time, the workstation on the can external dimension measuring device is vacant, and the robot can continue to clamp and transport the cans to be measured on the conveyor line to the can external dimension measuring device for measurement without waiting.

[0038] Preferably, the switching station driving structure includes a switching station screw rod arranged parallel to the station slide 3421, a switching station slider rotatably arranged on the switching station screw rod, and a switching station motor 3423 driving the switching station screw rod to rotate, the third mounting plate 3422 is fixedly connected to the switching station slider, and the switching station motor 3423 rotates to drive the switching station screw rod to rotate so as to realize the switching station slider rotating and moving along the switching station screw rod. Through the switching station driving structure, the two stations can also realize the movement perpendicular to the direction of X-ray generation, so that after the detection of the curling-related data of the tank body at one station is completed, it can be directly switched to another station to continue the detection of the tank body to be tested at another station without waiting for the manipulator to clamp the new tank body to be tested. At the same time, while measuring another tank body, the manipulator can also clamp and transport the tank body that has completed the detection to the unloading station of the conveyor line, and then re-transport the tank body that has completed the external dimension measurement of the tank body to supplement the vacant measurement station 34. This saves the robot from waiting and speeds up the measurement efficiency.

[0039] Preferably, in this embodiment, the measuring station 34 is in the shape of a hollow tube, and the tank body to be tested is placed inside the measuring station 34. This design can prevent the tank body from being tilted due to unstable placement of the tank body when the robot is carrying the tank body to be tested.

[0040] The camera group mechanism 33 in this embodiment includes a parallel array camera 331 and a line array camera 332, both of which are used in conjunction with the X-ray emission source 32; the area array camera 331 in this embodiment has a relatively long exposure time each time, so the image acquisition speed is slow, but the image pixels collected are large and the image clarity is high. When measuring the sealing shape and tightness of the can body to be tested, the X-ray emission source 32 emits X-rays that pass through the can body to be tested and then only project them onto the set area array camera 331, so that the images of the two data can be obtained on the industrial computer, with good imaging effect, making the detection result more accurate. When measuring the overlap of the rolled edge of the can body to be tested, the X-ray emission source 32 emits X-rays that pass through the can body to be tested and then project them onto the line array camera 332. The line array camera 332 can capture images during the rotation of the can body. Although the image clarity is medium, the image acquisition speed is very fast and 360° image acquisition of the can body can be completed within 5-10 seconds, which can shorten the measurement time of the can body roll seal overlap and greatly improve the inspection efficiency of the can body.

[0041] Therefore, in this embodiment, a camera switching device 333 is also provided which can drive the area array camera 331 and the line array camera 332 to move perpendicular to the X-ray emission direction. The camera switching device 333 includes a transverse slide groove fixed on the substrate 31, a first mounting plate slidably arranged on the transverse slide groove, and a transverse driving structure driving the first mounting plate to move along the transverse slide groove. The transverse driving structure includes a transverse screw rod arranged parallel to the transverse slide groove, a transverse slider rotatably arranged on the transverse screw rod, and a transverse motor driving the transverse screw rod to rotate. The first mounting plate is fixedly connected to the transverse slider. The rotation of the transverse motor drives the transverse screw rod to rotate so as to realize the rotation and movement of the transverse slider along the transverse screw rod. At this time, the first mounting plate on the transverse slider also moves. Through this arrangement, when measuring the hemming overlap of the can body, it is possible to ensure that the can body to be measured does not move, and then move and switch different cameras to form an image, so as to quickly complete the measurement of the can body hemming overlap using the line array camera 332.

[0042] At the same time, when the present solution is measuring the tightness of the can body to be tested, it is necessary to rotate the can body to be tested so as to realize projection imaging detection of all the curling edges, and when measuring the tightness, the closed tightness of the can body curling edges is projected and observed section by section. In order to improve the efficiency of this process of tightness measurement. This embodiment also designs a front-to-back motion module 334, which includes a longitudinal slide fixed on the first mounting plate, a second mounting plate slidably arranged on the transverse slide, and a longitudinal driving structure driving the second mounting plate to move along the longitudinal slide, the longitudinal driving structure is similar to the transverse driving structure, the longitudinal slide is arranged perpendicular to the transverse slide, and the array camera 331 is fixed on the second mounting plate. It can be seen from the above design that since the measurement of tightness only requires X-ray imaging on the array camera 331, only the array camera 331 can realize the forward and backward movement. In the initial state, the area array camera 331 and the line array camera 332 are arranged in parallel on the same straight line. At this time, the two data of the can seam overlap and the seam shape can be detected; however, when measuring the tightness, such as Fig. 9 As shown, the forward and backward motion module 334 will drive the area array camera 331 to move forward, and at this time the area array camera 331 moves closer to the X-ray emission source 32, and the distance between the area array camera 331 and the X-ray emission source 32 changes from L2 to L3 (L2>L3). Since the field width W of the area array camera 331 (i.e., the width of the received image) is unchanged, the position of the measuring station 34 does not move (i.e., the position of the tank to be tested does not change, and the distance between the tank to be tested and the X-ray emission source 32 is L1), and when the distance between the area array camera 331 and the X-ray emission source 32 is shortened, the range of each detection of the tank to be tested increases (B>A).

[0043] Preferably, the longitudinal driving structure includes a longitudinal screw rod arranged parallel to the longitudinal slide groove, a longitudinal slider rotatably arranged on the longitudinal screw rod, and a longitudinal motor driving the longitudinal screw rod to rotate. The second mounting plate is fixedly connected to the longitudinal slider. The rotation of the longitudinal motor drives the longitudinal screw rod to rotate so as to realize the rotation and movement of the longitudinal slider along the longitudinal screw rod. At this time, the second mounting plate also moves together, and the area array camera 331 can change the distance between it and the X-ray emission source 32, so as to complete the detection of different curling data and improve the efficiency of tightness measurement.

[0044] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. X-ray scanning and shaping device, characterized in that: The invention comprises a substrate, an X-ray emission source installed at one end of the substrate, a camera group mechanism matched with the X-ray emission source and arranged at the other end of the substrate, a measuring station for placing a tank body to be measured, and a swinging structure for swinging the substrate. The measuring station does not swing with the swinging structure and is arranged between the X-ray emission source and the camera group mechanism. The camera group mechanism comprises an area array camera and a line array camera arranged in parallel, a camera switching device for driving the area array camera and the line array camera to move perpendicular to the X-ray emission direction, and a forward and backward motion module for driving the area array camera to move parallel to the X-ray emission direction.

2. The X-ray scanning and shaping device according to claim 1, characterized in that: The swing structure includes a base plate, two first fixed frames fixed to the base plate, a swing screw rotatably arranged on the two first fixed frames, a swing motor driving the swing screw to rotate, a swing slider rotatably installed on the swing screw, a connecting rod, a connecting block, a second fixed frame fixed to the base plate, and a support seat hinged to the second fixed frame; one end of the connecting rod is hinged to the swing slider, and the other end is hinged to the connecting block; one end of the base plate is connected and fixed to the support seat, and the other end is connected and fixed to the connecting block.

3. The X-ray scanning and shaping device according to claim 2, characterized in that: The bottom plate is also provided with two limiting plates on both sides of the base plate, and the limiting plates are provided with arc grooves. Both ends of the base plate are provided with protrusions at positions corresponding to the arc grooves. When the base plate is swung and adjusted, the protrusions slide along the arc grooves.

4. The X-ray scanning and shaping device according to claim 1, characterized in that: The camera switching device includes a transverse slide groove fixed on the base plate, a first mounting plate slidably arranged on the transverse slide groove, and a transverse driving structure driving the first mounting plate to move along the transverse slide groove. The area array camera and the line array camera are both mounted on the first mounting plate.

5. The X-ray scanning and shaping device according to claim 4, characterized in that: The transverse driving structure includes a transverse screw rod arranged parallel to the transverse slide groove, a transverse slider rotatably arranged on the transverse screw rod, and a transverse motor driving the transverse screw rod to rotate. The first mounting plate is fixedly connected to the transverse slider. The rotation of the transverse motor drives the transverse screw rod to rotate so that the transverse slider rotates and moves along the transverse screw rod.

6. The X-ray scanning and shaping device according to claim 4, characterized in that: The forward and backward motion module includes a longitudinal slide groove fixed on the first mounting plate, a second mounting plate slidably arranged on the transverse slide groove, and a longitudinal driving structure driving the second mounting plate to move along the longitudinal slide groove, the longitudinal driving structure is similar to the transverse driving structure, the longitudinal slide groove is arranged perpendicular to the transverse slide groove, and the area array camera is fixedly mounted on the second mounting plate.

7. The X-ray scanning and shaping device according to claim 6, characterized in that: The longitudinal driving structure includes a longitudinal screw rod arranged parallel to the longitudinal slide groove, a longitudinal slider rotatably arranged on the longitudinal screw rod, and a longitudinal motor driving the longitudinal screw rod to rotate. The second mounting plate is fixedly connected to the longitudinal slider. The rotation of the longitudinal motor drives the longitudinal screw rod to rotate so that the longitudinal slider rotates and moves along the longitudinal screw rod.

8. The X-ray scanning and shaping device according to claim 1, characterized in that: Two long holes are formed at one end of the substrate close to the emission source, and the bracket of the measuring station passes through the two long holes to realize that the measuring station is arranged between the X-ray emission source and the camera group mechanism.

9. The X-ray scanning and shaping device according to claim 4, characterized in that: The measuring station also includes a rotating structure for driving the measuring station to rotate, and the rotating structure includes a slewing bearing fixed to the measuring station, a synchronous pulley, a rotating synchronous belt tightly wrapped around the slewing bearing and the synchronous pulley, and a rotating motor driving the synchronous pulley to rotate.

10. The X-ray scanning and shaping device according to claim 9, characterized in that: There are two measuring stations and they are double stations. The measuring stations include a station switching device, including a station slide groove perpendicular to the X-ray projection direction, a third mounting plate that can slide along the station slide groove, and a switching station driving structure that drives the third mounting plate to move. The switching station driving structure is similar to the lateral driving structure. The two measuring stations are arranged side by side on the third mounting plate along the station slide groove.

Citation Information

Patent Citations

  • X-ray scanning forming device

    CN213843068U