JPH067008U - Plate material flatness detection device - Google Patents

Abstract

(57) [Abstract] [Purpose] To detect the flatness when flattening a strip-shaped plate, and to detect the presence or absence of distortion and the position. [Structure] A plurality of measuring means 10 corresponding to the positions where the strain of the processing target material W should be detected are scattered in a dot pattern on a detection table 1 on which the planarized processing target material W is placed. The group of measuring means 10 detects the distortion occurring in the material W to be processed at the detection site by comparing with the respective surrounding sensing conditions. The measuring means 10 is of a contact type including a retractable detection pin 11 and a switch mechanism 15 which is turned on and off following the retracting operation of the detection pin 11, or the distance between itself and the upper surface of the workpiece W. A non-contact type that consists of a distance sensor that constantly detects

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In this invention, for example, after pulling out a long strip-shaped original material that is stored in a winding shape and inserting it between a number of rollers to correct the curl and flatten it, The present invention relates to a flatness detecting device for a plate material to be detected.

[0002]

[Prior art]

 Conventionally, for example, as a plate material having an appropriate thickness as a material for constructing an air-conditioning duct or the like, a long strip-shaped plate material having a predetermined width is drawn from a coil raw material wound in a roll shape. Is used, and after being cut corresponding to each part of the frame member, it is bent and then combined with each other.

At this time, since the long strip-shaped plate material drawn out from the coil raw material was in a state of being wound in a roll shape, it has a so-called bending tendency, which is corrected and flattened. It is supposed to be used after being subjected to chemical treatment. To correct this bending tendency, as shown in FIG. 4, for example, a material W to be processed, which is a plate material, is conveyed and inserted between a large number of correction rollers 101 arranged alternately in the upper and lower directions, and a curving action which is alternately inverted is imparted. The leveler 100 thus configured is used to flatten the entire surface.

[0004]

[Problems to be solved by the device]

 However, when straightening is performed by the straightening roller 101 of the leveler 100, a forced pressing force is applied from both front and back surfaces, so that the entire area is not formed into a flat surface, and mechanical distortion is likely to occur even partially. If there is distortion, for example, it may be difficult to perform accurate molding when cutting as a duct material.

Moreover, this distortion is not easily detected as it is visually unobservable, and it is often overlooked as is. Since it was extremely difficult, it was a bottleneck in automating the whole work.

Therefore, the present invention has been devised in view of the various existing circumstances as described above, and detects the flatness when flattening a band-shaped plate material having a so-called bending tendency and detects the flatness. An object of the present invention is to provide a plate flatness detecting device capable of easily detecting the presence / absence of distortion and the position of the distortion.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, a plurality of measuring means 10 corresponding to the position where the strain of the material W to be detected should be detected on the detection table 1 on which the material W to be processed is placed. It is characterized in that the dots are scattered and arranged.

The measuring means 10 is turned on following the detection pin 11 that can be retracted into and out of the detection table 1 itself on the upper surface of the detection table 1 when the material W to be processed comes into contact with the detection pin 11. It can be configured as a contact system including a switch mechanism 15 that is turned off.

Further, the detection pin 11 is elastically urged toward the upper surface of the detection table 1 so as to project, and is vertically inserted through the detection table 1. The switch mechanism 15 is arranged below the detection table 1. It consists of a lower contact 15A arranged on the switch board 16 and an upper contact 15B arranged under the detection pin 11, and when the detection pin 11 is depressed downward, the lower contact 15A and the upper contact 15B contact each other. Can be configured to be turned on.

Further, the measuring means 10 is arranged at an appropriate distance from the upper surface of the material to be processed W placed on the detection table 1 whose upper surface is a smooth surface, and its position and the upper surface of the material to be processed W. It can be configured as a non-contact type one including a distance sensor 21 that constantly detects the distance to

[0011]

[Action]

 In the flatness detecting device for a plate material according to the present invention, each of the measuring means 10 scattered and arranged on the detection table 1 detects the presence or absence of the distortion or the unevenness of the material W to be processed at each arrangement position. .

The contact type measuring means 10 senses the weight of the material W to be processed placed on the detection table 1, and the switch mechanism 15 detects the weight of the material W to be processed at the detection site. Each of the measuring means 10 which is turned on and off and turned on or off is compared with the sensing conditions of the other 10 in the surroundings, so that the lower or lower part of the processed material W at the detection site is generated. Detect upward distortion.

The non-contact type measuring means 10 detects strain, unevenness and the like in the material W to be processed from a position separated from the material W to be processed.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to FIG. 1 to FIG. 3. Reference numeral 1 shown in the drawings denotes a processed material that is sequentially drawn from a roll raw material wound in a roll shape, for example. This is a detection table on which the material W is placed. On the detection table 1, a plurality of measuring means 10 corresponding to the positions where the distortion of the material W to be processed should be detected are scattered and arranged in a dot pattern. The group of measuring means 10 detects the presence or absence of distortion in the material W to be processed, the position, etc. (see FIG. 2).

As shown in the drawing, the scattered arrangement of the measuring means 10 is provided at regular intervals in the vertical and horizontal directions along the conveyance direction of the material W to be processed, and by adopting such a regular arrangement form. , It is easy to detect distortion and uneven position. Needless to say, the arrangement of the measuring means 10 is not limited to the regular arrangement, and the arrangement may be, for example, arranged in a line along the conveyance direction.

As shown in FIG. 1 and FIG. 2, for example, the measuring means 10 is in contact with the material W to be processed and detects the weight of the material W to detect whether the material W appears or disappears on the upper surface of the detection table 1. The detection pin 11 and the switch mechanism 15 that is turned on and off following the retracting operation of the detection pin 11 are provided.

The detection pin 11 shown in the figure is elastically urged toward the upper surface of the detection table 1 so as to project, and is vertically inserted through the detection table 1. Further, the switch mechanism 15 includes a detection table. 1 consists of a lower contact 15A arranged on the switch board 16 arranged below and an upper contact 15B arranged below the detection pin 11, and when the detection pin 11 is depressed downward, the lower contact 15A and the upper contact 15B are It is supposed to be turned on by touching.

Further, the detection pin 11 itself has a flange-shaped upper top end formed in a mushroom shape having, for example, a hemispherical curved surface, and the processed material W to be conveyed smoothly slides on the upper end of the detection pin 11. The coil spring 13 is elastically compressed and housed in a through hole 12 formed in the upper portion of the detection table 1 so as to be conveyed, and is biased so as to project above the detection table 1 by a coil spring 13.

In the figure, the switch mechanism 15 is turned on when the detection pin 11 descends in the direction in which the detection pin 11 is retracted. The switch mechanism 15 may be turned on when the detection table 1 is projected and raised.

The measuring means 10 shown in FIG. 3 is not of the contact type shown in FIGS. 1 and 2 but of the non-contact type. For example, the upper surface is a smooth surface. The distance sensor 21 is arranged at an appropriate distance from the upper surface of the workpiece W placed and conveyed on the detection table 1. The distance sensor 21 is, for example, a light-reflecting type, which constantly detects the distance between itself and the upper surface of the material W to be processed, and when the material W is being conveyed, the distance between the distance sensors 21 is flat if the surface is flat. The material W to be processed has no distortion because it is constant, and when there is distortion or unevenness, the presence or absence of the material can be detected by sensing the presence or absence of the front and back from a fixed interval position. There is.

Although not shown, the measuring means 10 scatteredly arranged on the detection table 1 are electrically connected to a display mechanism having a display means arranged on the panel, the display means having substantially the same arrangement as that of the measuring means 10. Therefore, the strains detected by the respective measuring means 10 and the presence / absence of irregularities are displayed at corresponding positions on the display mechanism, for example, in a lighting manner. By doing so, by confirming the displayed position on the display mechanism, it is possible to easily confirm the distortion in the material W to be processed, the presence or absence of unevenness, the position thereof, and the like.

Next, in order to explain an example of the use of this, the embedding target material W, which is sequentially drawn from the roll raw material wound in a roll shape (not shown), is placed on the detection table 1. Then, the respective measuring means 10 on the detection table 1 act as a group to detect the distortion and unevenness existing in the material to be processed W.

For example, in the contact type measuring means 10, when the switch mechanism 15 of any one of the measuring means 10 is turned on, the portion of the workpiece W corresponding to the position of the measuring means 10 may be distorted downward. To be detected. Further, when a large number of measuring means 10 are turned on but some of them are not turned on, the portion of the workpiece W corresponding to the non-turned-on measuring means 10 moves upward. Distorted is detected.

On the other hand, in the non-contact type measuring means 10, when the distance from the distance sensor 21 to the upper surface of the material W to be processed is constantly detected and it is sensed that there is a front and back, the distance is shorter than the reference distance. Is detected to be upwardly distorted, and similarly when it is long, downwardly distorted.

[0025]

[Effect of device]

 The present invention is configured as described above, and therefore, for example, the flatness when flattening by correcting the so-called curl, which occurs in a strip-shaped plate wound in a roll shape, is extremely simple. It is possible to detect, and it is possible to easily confirm the presence / absence of the distortion and further the position of the distortion. Moreover, this detection operation can be easily performed even while the workpiece W is being transported on the detection table 1. Further, even the material W to be processed cut into predetermined lengths can be similarly detected.

This is because, in the present invention, a plurality of measuring means 10 are scattered on the detection table 1 in a dotted manner, and the measuring means 10 act as a group to cause strains existing in the workpiece W. This is because it is possible to detect the presence or absence, the position thereof, and the like. For example, even in the case of the workpieces W that are sequentially conveyed, they can be continuously processed and detected, which is very useful for automated processing.

Further, the contact type measuring means 10 including the detection pin 11 and the switch mechanism 15 senses the weight of the material W to be processed placed on the detection table 1 and the like, and a group of these measuring means. It is possible to detect the strain occurring in the material to be processed W itself at the detection site by comparing with the surrounding 10 sensed conditions, and it is particularly suitable for detecting the strain from below.

Similarly, the non-contact type measuring means 10 including the distance sensor 21 and the like can detect distortion, unevenness, and the like in the material to be processed W from a position separated from the material to be processed W, and has a smooth surface. By placing the material W to be processed on a certain detection table 1, accurate distortion of the material W to be processed can be detected from above.

Further, the flatness detecting device of the present invention has versatility that can be used for detecting the flatness of not only the coil-shaped strip-shaped plate material wound in a roll shape but also various flat plate-shaped plate materials. The strain and the like existing in them can be easily measured.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment.

FIG. 2 is a perspective view.

FIG. 3 is a side view of another embodiment.

FIG. 4 is a schematic side view of a leveler for pulling out and correcting a plate material.

[Explanation of symbols]

W Material to be treated 1 Detection table 10 Measuring means 11 Detection pin 12 Through hole 13 Coil spring 15 Switch mechanism 15A Lower contact point 15B Upper contact point 16 Switch panel 21 Distance sensor 100 Leveler 101 Straightening roller

Claims (4)

[Scope of utility model registration request] 1. A detection table on which a material to be processed is placed,
A flatness detecting device for a plate material, wherein a plurality of measuring means corresponding to the positions where the distortion of the material to be processed should be detected are scattered and arranged in dots. 2. The measuring means is a detection pin which is capable of appearing and disappearing on and from the detection table itself on the upper surface of the detection table when a material to be processed comes into contact, and is turned on in accordance with the appearing and disappearing operation of the detection pin.
The flatness detecting device for a plate material according to claim 1, further comprising a switch mechanism that is turned off. 3. The detection pin is elastically urged toward the upper surface of the detection table so as to project, and is vertically inserted through the detection table. The switch mechanism is arranged on a switch panel arranged below the detection table. It consists of a lower contact and an upper contact located below the detection pin, and when the detection pin sinks downward,
The flatness detecting device for a plate material according to claim 2, wherein the lower contact and the upper contact are in contact with each other. 4. The measuring means is arranged at an appropriate distance from the upper surface of the material to be processed placed on the detection table having an upper surface which is a smooth surface, and measures the distance between itself and the upper surface of the material to be processed. The flatness detecting device for a plate material according to claim 1, comprising a distance sensor that constantly detects.