CN112346110A

CN112346110A - Pre-exposure cassette for handwriting identification of automatic ray detection system

Info

Publication number: CN112346110A
Application number: CN202011188096.0A
Authority: CN
Inventors: 黄明
Original assignee: China Nuclear Industry Fifth Construction Co Ltd
Current assignee: China Nuclear Industry Fifth Construction Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-09
Anticipated expiration: 2040-10-30
Also published as: CN112346110B

Abstract

The invention discloses a hand-written mark pre-exposure cassette for an automatic ray detection system, which comprises an openable box body, and the cassette further comprises: the pre-exposure window is arranged on one side of the box body and comprises a light-transmitting plastic sheet and a light-tight black plastic sheet, and the light-transmitting plastic sheet is arranged above the light-tight black plastic sheet; and the shutter mechanism drives the light-tight black plastic sheet to move relative to the light-transmitting plastic sheet. By adopting the pre-exposure cassette for the handwritten mark for the automatic ray detection system, the exposure of the lead rays is replaced by the natural light exposure, the radiation and the lead arrangement are not needed on site, the radiation dose is reduced, the labor intensity is reduced, the safety risk is reduced, and the working efficiency is improved.

Description

Pre-exposure cassette for handwriting identification of automatic ray detection system

Technical Field

The invention belongs to the field of industrial ray detection devices, relates to a cassette for an automatic ray detection system, and particularly relates to a cassette for forming a mark image on a negative film through pre-exposure of a handwritten mark.

Background

According to the standard requirements of NB/T47013.2-2015 pressure-bearing equipment radiographic inspection, a complete and correct mark image needs to be arranged on the film during radiographic inspection. The mark generally comprises an identification mark and a positioning mark, wherein the identification mark at least comprises an item name, a detection unit, a product number, a welding seam number, a part number, a welding worker code number and a transillumination date. In practice, a full image of a weld on a single substrate requires 40 letters or numbers to be programmed.

There are two methods for forming a marked image on a negative. One is formed by radiation exposure. At present, the most common method is to arrange manually the required information on the negative film on a tape or a cassette by using "type-casting" such as 0, 1, 2, 3, A, B, C, etc. before exposure, then fix the film on the welding line by using a rubberized fabric, and form the marked image after exposure by radiation and dark room processing. This method has the following disadvantages: a film has more marks to be presented, and the manual arrangement on site is time-consuming and labor-consuming; the negative film is easily invalidated due to wrong and missing marks in the arranging process; on-site conditions are not good, such as low temperature, high humidity and weather with much dew, the viscosity of the adhesive plaster is greatly reduced, so that the flame singing and lamp baking are needed, and the special time is spent for changing one or a group of characters; the adhesive tape drops in the exposure process, which causes that the type drops, slides or the type plate is inclined, and the type presses the welding line, so that the welding line image is covered. The patch can be caused by the omission or the mistake of the mark, and the resource waste can be caused by larger working hour, labor and cost.

The other type is formed by natural light exposure, namely, the marking pre-exposure is completed by a certain tool in an office to form a marking image, so that the difficult problems of field type coding and type pasting are avoided.

As in chinese patent application No.: 201110312429.0, filing date: 14/10/2011, the invention has the patent name: the invention discloses a film printer, which is characterized in that a film is placed on the plane of an exposure window, a cover plate is pressed downwards to press a contact switch, the contact switch is used for connecting a circuit, and a white light is emitted by a white lamp to complete one-time exposure on the film; then taking out the exposed film, horizontally placing the paper printed with characters on the plane of the exposure window, horizontally placing the film subjected to one-time exposure on the paper printed with characters, and aligning; the cover plate is pressed downwards to press the contact switch, the circuit is connected through the contact switch, the white light is emitted by the white lamp to expose the film, the light penetrates through the printing paper, the light intensity of the part printed with the characters is small, and differential images are formed on the film after the printing.

Another chinese patent application No.: CN201921070686.6, application date: 7, month 10 in 2019, the patent name of the invention is: the invention discloses a radiographic film information mark imager, which comprises a computer, a carbon powder printer, a black matrix printing system and a black matrix printing system, wherein the computer is provided with printing information with the size consistent with that of a light source window; cutting the marking information paper tape into a specified size according to the template; the cut information paper tape is corresponding to the negative film, then the information paper tape is put on the upper surface of the light-diffusing plate at the light source window of the instrument, the edge of the unexposed negative film is pressed on the light source window, and the negative film is subjected to light sensing for 1-3 seconds to form a marked image.

Although the two methods can realize pre-exposure to form the identification image and greatly reduce the field workload, the two methods have the defects that the negative film needs to be extracted, needs to be processed in a darkroom, needs to print a large amount of information paper tapes and cut into a specific size, the false defect and the false exposure of the negative film are easily caused, the implementation steps are complex, and the implementation place is single.

Disclosure of Invention

The invention provides a cassette capable of forming a mark image on a negative by pre-exposure of a hand-written mark, aiming at solving the problems that the prior negative cassette needs to use type and ray for development, cannot use natural light for pre-exposure or has complex pre-exposure process and cannot carry out continuous shooting, and the like.

In order to achieve the above object, the present invention provides a pre-exposure cassette for handwritten signs used in an automatic radiation detection system, the cassette including an openable and closable cassette body, characterized in that the cassette further includes:

the pre-exposure window is arranged on one side of the box body and comprises a light-transmitting plastic sheet and a light-tight black plastic sheet, and the light-transmitting plastic sheet is arranged above the light-tight black plastic sheet;

and the shutter mechanism drives the light-tight black plastic sheet to move relative to the light-transmitting plastic sheet.

Preferably, the present invention further provides a pre-exposure cassette for a handwritten signature for an automatic radiation detection system, characterized in that,

the shutter mechanism comprises a rotary shutter, and the rotary shutter drives a coaxial first gear to rotate;

the end part of the light-tight black plastic sheet comprises a second gear, the first gear and the second gear are meshed, and the light-tight black plastic sheet is driven to move by the first gear;

the light-tight black plastic sheet is connected with an elastic device, and when the light-tight black plastic sheet moves to a certain position, the light-tight black plastic sheet rebounds through the elastic device.

the rotary shutter is symmetrically arranged on the upper side face or two side faces of the box body.

the shutter mechanism comprises a sliding shutter, and the sliding shutter slides to drive the light-tight black plastic sheet to move relative to the light-transmitting plastic sheet.

the sliding shutters are symmetrically arranged on the upper side surface or the side surfaces of two ends of the box body.

the shutter mechanism comprises a press shutter, the press shutter comprises a button, a spring unit, a sleeve and a connecting portion, the spring unit is sleeved on the connecting portion, the connecting portion is arranged in the sleeve, the first end of the connecting portion is connected with the button, the second end of the connecting portion is connected with the end portion of the light-tight black plastic sheet, and the second end of the connecting portion drives the light-tight black plastic sheet to move relative to the light-tight plastic sheet through pressing the button.

the pressing type shutters are symmetrically arranged on the upper side face or the two side faces of the box body.

and the positioning block is arranged on the upper box cover, and when the light-tight black plastic thin sheet reaches a certain position, the reset spring pulls back the light-tight black plastic thin sheet and stops at the position of the positioning block.

the openable box body comprises an upper box cover and a lower box cover which are movably connected through a rotating shaft, and a lead screen is respectively arranged in the upper box cover and the lower box cover;

the inner surface of the lower box cover is provided with a concave cavity, and the pre-exposure window is arranged in the cavity and close to the movable connecting shaft.

By adopting the pre-exposure cassette for the handwritten mark for the automatic ray detection system, the exposure of the lead rays is replaced by the natural light exposure, the radiation and the lead arrangement are not needed on site, the radiation dose is reduced, the labor intensity is reduced, the safety risk is reduced, and the working efficiency is improved.

It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.

Drawings

Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present disclosure are selected from publicly known and used terms, some of the terms mentioned in the specification of the present disclosure may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present disclosure is understood, not simply by the actual terms used but by the meaning of each term lying within.

The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the present invention with reference to the accompanying drawings.

FIGS. 1(1) to (3) are a front view, a closed front view and a closed rear view of a pre-exposure cassette for a handwritten mark according to the present invention after being opened;

FIG. 2 is an enlarged view of a portion of the rotary shutter and opaque black plastic sheet;

FIG. 3 is an enlarged view of a portion of the sliding shutter in conjunction with the opaque black plastic sheet;

fig. 4 is a partially enlarged view of the linkage of the push-type shutter and the opaque black plastic sheet.

Reference numerals

100-box body

11-upper box cover

12-lower box cover

13-elastic material

14, 15-lead screen

16-connecting shaft

17-slide button switch

18-opaque black plastic sheet

19-light-transmitting plastic foil

20, 21-rotary shutter

23-return spring

24-positioning block

25-first gear

26-second gear

27-Pre-Exposure Window

31-sliding shutter

41-pressing shutter

411-push button

412-spring

413-connection part

414-casing

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Example 1

Please refer to fig. 1(1) to (3), which respectively show a front view, a closed front view and a closed back view of the handwriting sign pre-exposure cassette according to the first embodiment of the present invention.

The cassette comprises a body 100 which is openable and closable and comprises upper and

lower covers

11, 12 which are movably connected by a connecting shaft 16.

Fig. 1(1) is a schematic internal view of the opened box body, wherein lead screens 14 and 15 are respectively arranged on the inner side cover surfaces of the upper and lower box covers 11 and 12, and a slide-buckle type switch 17 is arranged on the upper edge of the cover surface of the upper box cover 11 and is used for matching with the lower box cover 12 to realize the buckling of the box body. The upper edge of the inner surface of the lower cover 12 of the box body is provided with an elastic material 13, and the upper cover can be automatically bounced open by a slide buckle type switch 17 on the side surface of the slide cassette.

The inner surface of one side of the box body is provided with a concave cavity, and the inner surface of the other side of the box body is flush.

In the preferred embodiment of fig. 1, the lower cover 12 is provided with a cavity and the inner surface of the upper cover 11 is flush. A certain amount of elastic light-blocking material, such as black and dark green flannelette, is respectively applied to the bottom and inner side edges of the two

lead screens

14 and 15 to make the inner surfaces of the two sides of the cassette tightly attached to the film. The lead screens 14 and 15 serve to increase the sensitivity.

As shown in fig. 1(2), the upper surface of the upper cover 11 of the box body of the present invention has a marked pre-exposure window 27 parallel to the length or width direction, the pre-exposure window 27 is composed of a transparent plastic sheet 19 and an opaque black plastic sheet 18, the transparent plastic sheet 19 is connected with the upper cover 11 into a whole body, and can be used for handwriting and erasing marks, the opaque black plastic sheet 18 is a movable part, and the opening and closing of the exposure window can be controlled by a shutter button arranged on the upper cover 11 or the side surface.

Fig. 2 is a partially enlarged view of the shutter button shown in fig. 1 (1).

In fig. 1(1), the shutters located in the longitudinal direction of the upper case cover 11 are

rotary shutters

20 and 21, that is, the shutters operate by rotation, a first gear 25 is provided at the other end of the shutter, a second gear 26 is also provided at the end of the opaque black plastic sheet 18 on the upper case body 11, and the first and

second gears

25 and 26 are engaged with each other.

The opaque black plastic sheet 18 is connected to a return spring 23 on a side of the cavity close to the upper case cover 11, and is provided with a positioning block 24, the other end of the return spring 23 is fixed to the upper case cover 11, and the positioning block 24 is a protruding structure fixed to the upper case cover 11.

Before the hand-written mark pre-exposure cassette is used, negative film information such as a welding seam number, a welder number, a unit code number, a repair number, a shooting date and the like is hand-written on a light-transmitting plastic sheet 19 by using a black pen. When the LED lamp is used, under the condition that certain illumination conditions are ensured by equipment such as natural light, a fluorescent lamp and a flashlight. As shown in fig. 2, by rotating the rotary shutter button outside the box, since the first and

second gears

25, 26 are engaged with each other, the first gear 25 will drive the second gear 26 at the end of the opaque black plastic sheet, so that the opaque black plastic sheet 18 is opened with reference to the double arrow direction of the drawing, after reaching a certain position, the reset spring 23 will pull back the opaque black plastic sheet 18 and stop at the position of the positioning block 24, thereby closing the window, completing the film exposure, and displaying the handwritten film information on the film.

Example 2

Please refer to the structure of the sliding shutter 31 shown in fig. 3.

The sliding shutter 31 can slide in a sliding slot arranged on the upper box cover 11, one end of the sliding shutter 31 is connected with the light-tight black plastic sheet 18, so that the light-tight black plastic sheet 18 is driven to move horizontally relative to the light-tight plastic sheet 19 on the upper layer, when the sliding shutter moves to a certain position, the reset spring 23 pulls back the light-tight black plastic sheet 18 and stops at the position of the positioning block 24, the window is closed, the film exposure is completed, and the handwritten film information is displayed on the film.

Example 3

Fig. 4 shows the structure of the push shutter 41.

The lift-type shutter 41 comprises a button 411, a spring 412, a connecting portion 413 and a sleeve 414, wherein the connecting portion 413 is a rod-shaped structure and is disposed in the sleeve 414, one end of the connecting portion 413 is connected to the button 411, and the other end is connected to the opaque black plastic sheet 18. When the connection portion 413 is pressed (finger pressure), the connection portion moves downward along the sleeve 414 against the elastic force of the spring 412, and the opaque black plastic sheet 18 is moved. When the pressing force is released, the spring 412 is restored to the original position, the connecting part 413 is automatically locked and positioned by the locking hoop and the clamping head, the button 411 is pressed again, and the connecting part 413 rebounds and resets under the action of the spring 412. Therefore, the rapid closing is realized, the exposure of the film is completed, and the handwritten negative film information is displayed on the film.

The cassette structure of the invention ensures that the detection personnel can carry out identification pre-exposure at any time and any place when using the negative film, thereby getting rid of the limitation of rays, darkrooms or specific equipment and leading the detection to be more flexible and convenient.

The cassette in the above embodiment is a rectangular parallelepiped, and the internal cavity specifications include, but are not limited to, one or more of the following: 360mm × 120mm, 360mm × 100mm, 360mm × 80mm, 240mm × 100mm, 240mm × 80mm, 180mm × 100mm, 180mm × 80 mm.

It should be noted that, in the present invention, the linkage between the shutter and the opaque black plastic sheet is realized by adopting a gear engagement mode, and under the general concept, various mechanisms such as other spring mechanisms, lever linkage mechanisms, etc. can be adopted to realize the linkage.

Wherein the cassette material includes, but is not limited to, metallic materials and non-metallic materials, such as polymers, composites, wood, fiberglass. Preferably, the cassette material is hard polyvinyl chloride, so that certain hardness is guaranteed, and meanwhile, the cassette is light in weight and easy to process.

Wherein, the connection mode includes but is not limited to integral plastic connection, rivet type rotary connection and perforation type rotary connection. Preferably, the two box surfaces are connected in an integrated plastic mode, certain sealing performance is achieved, and the light leakage of the film-loaded cassette is guaranteed.

The closing mode includes but is not limited to a snap-in mode, a slide-in mode, a press-fit mode and an adhesive mode. Preferably, two box faces adopt side sliding buckle type switches, and the switch is simpler and more convenient.

Preferably, the cartridge has a cavity on an inner surface for receiving a film to be placed. Further preferably, the film is convenient to access, and the inner surface of one side of the cassette is flush, and the other side of the cassette is provided with a concave cavity.

Preferably, a certain amount of elastic light-blocking material such as black and dark green flannelette is applied on each of the two inner sides of the film cassette to make the inner surfaces of the two sides of the film cassette tightly attached to the film.

Preferably, the flannelette on the inner surfaces of the two sides of the cassette is laid with a lead screen with a certain thickness, and the thickness of the lead screen is a certain value within the range of 0.1 mm-1 mm according to standard requirements so as to enhance the sensitivity of the negative plate.

Preferably, elastic materials are arranged on two sides of the inner surface of the cassette, and the cassette can be automatically ejected by sliding the side slide buckles of the cassette.

Preferably, the upper surface of the cassette is provided with an identification pre-exposure window in a direction parallel to the length or width direction, and further preferably, the pre-exposure window is arranged on one side of the upper surface of the cassette close to the long side of the connection position. The pre-exposure window is preferably composed of a transparent plastic sheet and a light-tight black plastic sheet, the transparent plastic sheet is connected with the upper surface of the cassette into a whole and can be used for handwriting and erasing marks, and the light-tight black plastic sheet is a movable part. Further preferably, a shutter button is arranged on the upper surface or the side surface of the cassette and is used for controlling the opening and closing of the light-tight black plastic sheet.

Compared with the prior art, the invention has the beneficial effects that:

the cassette of the invention uses natural light exposure to replace type ray exposure, does not need to use rays and arrange type on site, reduces radiation dose, reduces labor intensity, reduces safety risk and improves working efficiency.

The invention does not need to type on site, and provides possibility for remotely controlling and replacing the cassette to realize automatic ray detection, thereby avoiding using the consumption products of Arabic numbers and English letters of lead products and reducing the cost of consumable materials.

The invention does not need other auxiliary equipment, can directly implement film pre-exposure on the cassette by utilizing natural light in any place to form a marked image, does not generate scratch and other adverse effects on the film, and reduces the waste film rate. Moreover, the operation is simple and convenient, time and labor are saved, and the method has high popularization value in the industry.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.

Claims

1. A hand-written marking pre-exposure cassette for use in an automatic radiation detection system, said cassette comprising an openable and closable cassette body, said cassette further comprising:

2. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 1,

3. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 2,

4. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 1,

5. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 4,

6. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 1,

7. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 6,

8. The pre-exposure cassette for handwritten signature for automatic radiation detection system according to claim 3 or 5 or 7,

9. The pre-exposure cassette for handwritten signature for automatic radiation detection system as claimed in claim 8,