KR101581338B1 - X-Ray Grid Assembly Jig - Google Patents

Abstract

According to the present invention, an X-ray grid assembly device comprises: a table part (100) of a flat plate shape; a backlight part (200) installed on a lower surface of the table part (100); a lower frame part (310) supporting a lower portion of the table part (100); a vertical frame part (320) expanded upwardly from the lower frame part (310); a stick plate part (400) sticking a cartridge (33); a reference plate part (500) determining an initial location and an initial tilt angle of the cartridge; an elevation arm part (600) coupled to the vertical frame part (320) to be elevatable; a camera part(700) coupled to an end of the elevation arm part (600); a monitor part (800) displaying an image, which is photographed by the camera part (700) on a screen; and a control part (900).

Description

X-ray Grid Assembly Jig}

The present invention relates to an apparatus capable of safely and accurately assembling an X-ray grid (scatter prevention grid), and is capable of real-time confirmation of the assembly state of the cartridge through a monitor during the assembly process.

X-ray photography is a method of examining the condition or lesion inside the body by radiating X-rays on the body part to be inspected and forming a phase with transmitted X-rays. This is due to the fact that the X-ray penetrates the human body and absorbs different amounts of tissue, which causes blurring of the image due to scattering radiation generated with the X-ray during the imaging process.

Therefore, in X-ray photography, a scatter prevention grid is used to prevent the image from being blurred by the scattering radiation. The scatter prevention grid is installed between the object (human body) and the detector which recognizes the image. The scattering radiation passing through the scatter prevention grid loses the property of the radiation and consequently enhances the image clarity.

According to Korean Patent No. 0414046, which is one of the technologies related to the existing scattering prevention grid, the scattering prevention grid (aka "X-ray grid") has a structure in which the transmissive portion (intermediate material) of the radiation is made of aluminum and the non-transmissive portion Lead.

In this X-ray grid, as the difference in transmittance between the intermediate material and the lead, which is an absorbing material, becomes larger, the image clarity of the implemented image becomes higher, so that a technique of manufacturing paper and synthetic resin having higher transmittance than aluminum has been proposed in Korean Patent Publication No. 2000-0063364 There is a problem that it is difficult to manufacture uniformly in the process and to manufacture with high density.

In other words, it is necessary to perform a process of assembling the lead and the cartridge made of the intermediate material by setting the angle according to the focal distance in the process of the grid, and if not assembled at an accurate angle in this process, Quality phenomena such as development, unevenness in image quality, etc., which have a significant influence on diagnosis, can occur.

In order to prevent this phenomenon, there is a method of inspecting and correcting the defects through the x-ray imaging inspection during the assembly process. However, problems such as excessive radiation exposure and inaccuracy of the calibration are caused, resulting in safety, productivity, and quality problems .

Accordingly, the present invention proposes a new type of assembling apparatus capable of safely and precisely manufacturing the x-ray grid in order to overcome the above-mentioned problems.

The present invention has been made in an effort to solve the problems described above, and it is an object of the present invention to provide a new structure assembling apparatus capable of inspecting and correcting defects without assembling a unit cartridge made of lead and an intermediate material, do.

Technical features of the present invention are as follows.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly apparatus for manufacturing an X-ray grid by stacking and assembling a lead and a cartridge made of an intermediate material.

The present invention relates to a flat panel type table part 100 which is made of a material through which a cartridge 33 made of a lead 11 and an intermediate material 22 is sequentially stacked in a horizontal direction and light is transmitted therethrough; A backlight unit 200 installed on a lower surface of the table unit 100 and emitting light toward the table unit 100; A lower frame part 310 for supporting a lower portion of the table part 100; A vertical frame part 320 extending upward from the lower frame part 310; A fastening plate part 400 that moves horizontally by a rod that is stretched and contracted at one side of the lower frame part 310 and slides the cartridge 33 at a predetermined inclination angle to closely contact the cartridge 33; A reference plate portion 500 which is provided on the other side of the lower frame portion 310 and is in close contact with a side surface of the cartridge 33 to be initially set to determine an initial position and an initial inclination angle of the cartridge 33; A descending descending arm arm portion 600 coupled to the vertical frame portion 320 so as to be raised and lowered and extending in the horizontal direction toward the center of the table portion 100; The cartridge 33 coupled to the end portion of the ascending and descending arm arm portion 600 and assembled in a horizontal direction on the upper surface of the table portion 100 is adjusted in the focal length and the backlight portion A camera unit (700) for capturing an image of the cartridge (33) through which the light from the light source (200) passes; A monitor 800 for displaying an image photographed by the camera unit 700 on a screen; And a control unit 900 for controlling operations of the backlight unit 200, the adhesion plate unit 400, the ascending / descending arm / dark unit 600, the camera unit 700, and the monitor unit 800 .

Technical effects of the configuration of the present invention are as follows.

First, in the process of assembling the unit cartridge made of lead and the intermediate material, it is possible to check the assembly state of the cartridge in real time using the backlight and the camera, so that the operation defect can be corrected immediately.

Second, the defective rate can be minimized by stacking and assembling the cartridge while automatically adjusting the inclination angle of the cartridge.

The control unit 900 controls the inclination adjusting unit 440 to adjust the inclination angle of the cartridge adhering unit 430 according to the assembly position of the cartridge 33 and the focal length of the camera, The vertical distance between the camera unit 700 and the cartridge 33 positioned at the center of the x-ray grid and the vertical distance between the cartridge 33 positioned at the center and the corresponding cartridge 33 The inclination angle of the cartridge 33 is determined by the trigonometric function and the inclination angle is calculated by the controller 900 so that the inclination adjustment unit 440 is adjusted so that the inclination angle of the cartridge contact unit 430 is adjusted. And the transfer unit 420 is automatically controlled so that the moving distance of the transfer plate 410 is adjusted to reduce the defect rate.

Third, it is possible to inspect the defect without X-ray inspection, and thus it is possible to guarantee the safety of the operator.

In other words, by using the backlight and the camera, it is possible to check whether the defect is occasionally bad during the assembling process. By using the image of the x-ray grid which is simply reflected on the backlight instead of the x-ray image inspection, the problem of overexposure due to x- can do.

Figure 1 shows the overall structure of the present invention.
Fig. 2 shows the cartridge 33 cut to the unit size from the fabric.
FIG. 3 illustrates a principle in which light of a backlight is transmitted through a grid assembly process and real-time monitoring is performed.
4 is an enlarged view of the structure of the fastening plate portion 400. As shown in Fig.
Fig. 5 shows the concept of a radiation examination and a non-radiation examination.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly apparatus for manufacturing an X-ray grid by stacking and assembling a lead and a cartridge made of an intermediate material.

The table portion 100 is formed in a flat plate shape to provide a space in which the cartridges 33 composed of the lead 11 and the intermediate material 22 are sequentially stacked in the horizontal direction, It is made of synthetic resin material.

The backlight unit 200 is installed on the lower surface of the table unit 100 and irradiates light toward the table unit 100. Various types of lighting equipment can be used. In a specific embodiment of the present invention, Use good, long-life LEDs.

The lower frame part 310 supports the lower part of the table part 100. The specific shape of the lower part frame 310 is not limited to that shown in FIG. If the structure is easy to install, the design can be changed in various forms.

The vertical frame part 320 extends upward from the lower frame part 310 to provide a mounting space for the ascending / descending arm arm part 600 and guides the upward and downward movement of the descending and descending arm part 600.

The fastening plate portion 400 moves horizontally by a rod that is stretched and contracted at one side of the lower frame portion 310, and pushes the cartridge 33 in close contact with a predetermined inclination angle.

That is, as shown in Figs. 1 to 3, the cartridge 33 is pushed in from the left side to the right side in the drawing. Such a cartridge 33 should be preliminarily cut to a certain size on a fabric made of an intermediate and lead as shown in Fig.

4, the adhering plate portion 400 includes a transfer plate 410, a transferring portion 420, a cartridge adhering portion 430, and a tilt adjusting portion 440.

The transfer plate 410 is moved in the horizontal direction by the transfer unit 420.

The conveying unit 420 is coupled to the conveying plate 410 to provide a power for pushing or pulling the conveying plate 410 in a horizontal direction. The conveying unit 420 includes a hydraulic or pneumatic cylinder provided with a piston rod to be stretched or shrunk, Conventional conventional devices capable of stably transporting the transfer plate 410, such as a guide, a ball screw with a motor, a rack and a pinion gear, etc., can be freely selected and used.

The cartridge contact portion 430 is a plate-like member rotatably coupled to the transfer plate 410. The cartridge contact portion 430 is adjustable in tilt angle and is in close contact with the cartridge 33 and pushes the cartridge 33 with a constant force.

The inclination adjusting unit 440 is mounted on the conveying plate 410 and is capable of extending and contracting in the horizontal direction, and an end portion of the inclination adjusting unit 440 is rotatably coupled to the cartridge contact portion 430. That is, the inclination adjusting unit 440 adjusts the inclination angle of the cartridge contact portion 430 by pushing or pulling the cartridge contact portion 430 rotatably coupled to the transfer plate 410.

The inclination adjusting unit 440 may be a linear guide equipped with a motor, or may be a hydraulic or pneumatic cylinder, or may be a screw, a rack and a pinion gear equipped with a motor, The conventional apparatuses capable of adjusting the inclination angle of the cartridge contact portion 430 can be freely selected and used.

The reference plate portion 500 is provided on the other side of the lower frame portion 310 and closely contacts the side surface of the cartridge 33 which is initially set to determine the initial position and initial inclination angle of the cartridge 33, The unit 500 includes a plurality of inclined blocks having inclined surfaces at various angles, and the inclined blocks of the corresponding angle are installed and used according to the standard of the X-ray grid. That is, the inclined blocks having different angles of the inclined surfaces are to be installed and used in accordance with the standard of the product.

The ascending / descending arm portion 600 is vertically coupled to the vertical frame portion 320 and extends horizontally toward the center of the table portion 100.

The camera unit 700 is coupled to the end of the ascending and descending arm arm unit 600 and is focussed on the cartridge 33 which is stacked and assembled horizontally on the upper surface of the table unit 100, And takes a picture of the image of the cartridge 33 through which the light of the backlight unit 200 passes after the assembly is completed. Various types of digital cameras can be used as the camera unit 700. [

The elevating arm portion 600 is composed of a vertical descent arm 610 extending in the horizontal direction and a vertical descent portion 620 for moving up and down the descending descender arm 610. The camera portion 700 includes a descending descender arm 610 and is lifted and lowered together with the lifting arm 610 to adjust the focal distance.

The lifting / lowering mechanism unit 620 may be a linear guide provided with a motor, a hydraulic or pneumatic cylinder may be used, or a ball screw, a rack, and a pinion gear equipped with a motor may be used to lift or lower the lifting arm 610 And a balance weight may be provided inside the vertical frame part 320 in order to balance the weight of the camera part 700 and the lifting arm 610 .

The monitor unit 800 serves to display images photographed by the camera unit 700 on a screen.

That is, as shown in FIG. 3, the image of the X-ray grid irradiated with the backlight can be confirmed in real time, so that it can be checked and corrected whether the cartridge 33 is assembled properly at any time.

The control unit 900 controls the operation of the backlight unit 200, the contact plate unit 400, the ascending / descending arm unit 600, the camera unit 700, and the monitor unit 800.

The control unit 900 controls the tilt adjusting unit 440 to adjust the tilt angle of the cartridge contact unit 430 according to the assembly position of the cartridge 33 and the focal length of the camera, And controls the feeder unit 420 so that the feeder unit 420 is controlled. The inclination angle of the cartridge 33 is determined by the vertical distance from the camera unit 700 to the cartridge 33 located at the center of the x-ray grid and the distance from the cartridge 33 located at the center to the cartridge 33, The function is solved. That is, the cartridge 33 at the center is vertically erected, and gradually lengthens as the distance from the cartridge 33 increases. The vertical distance from the camera unit 700 to the cartridge 33 located at the center of the x- The control unit 900 calculates the inclination angle of the cartridge 33 according to the trigonometric function so that the inclination angle of the cartridge contact unit 430 is adjusted Controls the slope adjusting unit 440 and controls the transferring unit 420 so that the moving distance of the transferring plate 410 is adjusted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Addition or deletion of a technique, and limitation of a numerical value are included in the protection scope of the present invention.

11: lead 22: intermediate material 33: cartridge
100: bed portion
200: backlight unit
310: Lower frame part
320: Vertical frame part
400:
410: transfer plate
420:
430: cartridge contact portion
440: inclination adjustment unit
500: Reference plate portion
600: ascending / descending arm portion
610: ascending and descending arm cancer
620: Heavy equipment
700:
800: Monitor section
900:

Claims (4)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly apparatus for manufacturing an X-ray grid by stacking and assembling a lead-
A table-shaped table part 100 made of a material through which light is transmitted, providing a space in which cartridges 33 made of lead 11 and intermediate material 22 are sequentially stacked in the horizontal direction;
A backlight unit 200 installed on a lower surface of the table unit 100 and emitting light toward the table unit 100;
A lower frame part 310 for supporting a lower portion of the table part 100;
A vertical frame part 320 extending upward from the lower frame part 310;
A fastening plate part 400 that moves horizontally by a rod that is stretched and contracted at one side of the lower frame part 310 and slides the cartridge 33 at a predetermined inclination angle to closely contact the cartridge 33;
A reference plate portion 500 which is provided on the other side of the lower frame portion 310 and is in close contact with a side surface of the cartridge 33 to be initially set to determine an initial position and an initial inclination angle of the cartridge 33;
A descending descending arm arm portion 600 coupled to the vertical frame portion 320 so as to be raised and lowered and extending in the horizontal direction toward the center of the table portion 100;
The cartridge 33 coupled to the end portion of the ascending and descending arm arm portion 600 and assembled in a horizontal direction on the upper surface of the table portion 100 is adjusted in the focal length and the backlight portion A camera unit (700) for capturing an image of the cartridge (33) through which the light from the light source (200) passes;
A monitor 800 for displaying an image photographed by the camera unit 700 on a screen; And
A control unit 900 for controlling the operation of the backlight unit 200, the adhesion plate unit 400, the ascending / descending arm / dark unit 600, the camera unit 700, and the monitor unit 800;
And an X-ray generator for generating X-rays. The method of claim 1,
The close-contact plate portion 400 includes:
A transfer plate 410 moving in a horizontal direction;
A conveying unit 420 coupled to the conveying plate 410 to provide power to push or pull the conveying plate 410 horizontally;
A cartridge contact part 430 rotatably coupled to the transfer plate 410 to adjust the inclination angle and to be pressed against the cartridge 33 by a predetermined force; And
A tilt adjusting unit 440 rotatably coupled to the cartridge contact unit 430 to adjust the tilt angle of the cartridge contact unit 430 while pushing or pulling the cartridge contact unit 430;
And,
The control unit 900 controls the inclination adjusting unit 440 to adjust the inclination angle of the cartridge contact unit 430 according to the assembly position of the cartridge 33 and the focal length of the camera, And controls the transfer unit (420) so that the moving distance of the X-ray generator (420) is adjusted. The method of claim 1,
The ascending / descending arm arm portion 600 includes:
A vertical descent arm 610 extending in the horizontal direction; And
A lifting and lowering arm portion 620 for moving up and down the lifting arm 610;
And an X-ray generator for generating X-rays. The method of claim 1,
The reference plate portion 500 may be formed,
Wherein the inclined blocks are inclined at various angles, and the inclined blocks of the angle are replaced by the inclined blocks according to the standard of the X-ray grid.

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