JP7048342B2 - Extension method and extension system - Google Patents

Description

The present invention relates to a rolling method and a rolling system, and particularly to scratch detection.

If the sheet material is scratched during rolling, defective parts will occur. Therefore, parts are replenished by overlapping extension (Patent Document 1). In the overlap spreading, the spreading is stopped near the scratch and the sheet material is cut. Then, it returns to the position on the upstream side of the defective part and stacks a new sheet material. This makes up for defective parts.

The relevant prior art is shown. Other than overlap spreading is also known as a treatment when a scratch is found. It is proposed by Patent Document 2 that, for example, one sheet material is extended by the length of the scratched part (additional marking) so as to supplement the scratched part. It is also known that a cutting pattern is projected onto a sheet material from a projector. For example, Patent Document 3 proposes that the fabric is stretched and contracted so that the projected cutting pattern and the pattern of the fabric fit, and then the fabric is cut.

Japanese Patent Laid-Open No. 02-169760 JP 2017-104957 JP 2013-240838

It is preferable to automatically detect scratches on the sheet material by a camera and image recognition, but it is difficult to automatically determine the degree and size of scratches. Therefore, scratch marks such as tags, tapes, and sticky notes are attached to the edges of the sheet material or near the scratches. The scratch mark reveals the approximate location of the scratch, but it is unclear whether the scratch is inside the part or in the gap between the parts. And if the scratch is on the outside of the part, no scratch treatment is required. However, in the current spreading method, if there is a scratch mark, the scratch is treated.

The problem of the spreading method of the present invention is that the operator can determine whether or not the scratch affects the part without detecting the scratch itself by the sensor, so that unnecessary scratch treatment can be omitted. do.

The rolling method of the present invention is a rolling method in which a sheet material is fed out on a rolling table by a rolling rolling device and a scratch mark on the sheet material is detected by a sensor.
At the very least, when the sensor detects a scratch mark, the projector projects the placement of the parts onto the sheet material so that the operator can compare the placement of the parts and the position of the scratches.
Accepts operator input regarding the need for scratch treatment when scratches affect parts,
It is characterized in that the scratch treatment is performed by the spreading system according to the input of the operator.

The rolling roll system of the present invention is a rolling rolling system in which a sheet material is fed out on a rolling roll table by a rolling roll device and a scratch mark on the sheet material is detected by a sensor.
At the very least, when the sensor detects a scratch mark, the projector projects the placement of the parts onto the sheet material so that the operator can compare the placement of the parts and the position of the scratches.
It has a means of accepting operator input regarding the necessity of scratch treatment when scratches affect parts.
It is characterized in that it is configured to perform a scratch treatment by a roll spreading system according to an operator's input.

It is difficult to detect the scratch itself with a sensor, but the operator can visually confirm the scratch. Since the arrangement of the parts is projected on the sheet material, it is possible to compare the position of the scratch and the arrangement of the parts and identify whether or not the scratch treatment (treatment when the scratch affects the part) is necessary. Therefore, unnecessary scratch treatment is not performed. The projector may always project the arrangement of parts, or may project only when a scratch is detected.

Preferably, when the scratch mark is detected, the roll spreading device stops the feeding of the sheet material or reduces the feeding speed. By doing so, even if the speed at which the sheet material is fed out is high, the operator can reliably input whether the scratch is inside the part or outside the part.

Preferably, a plurality of sheet materials are laminated on the spreading table by the spreading device, and the projector is raised or lowered according to the height of the stacking of the sheet materials, or the arrangement of parts projected from the projector is expanded or arranged. It is reduced and the arrangement of parts is projected at the same position with the same size regardless of the stacking height of the sheet material. By doing so, even if the number of stacked sheets changes, the parts are projected at the same position and with the same size, so that the operator can easily determine whether the scratch is inside or outside the parts .

Preferably, the controller extracts the parts that may contain scratches from the position of the scratch mark, and the projector is such that the parts that may contain scratches and the other parts are different. Project the placement of. In this way, the operator can easily find the part to look for the scratch.

Preferably, after the scratch mark is detected, if there is no input of the scratch position for a predetermined time, the spreading system performs the scratch treatment. In this way, if the operator does not input whether the scratch is inside or outside the part, the spreading will not stop indefinitely.

Preferably, a plurality of sheet materials are laminated on the spreading table by the rolling rolling device, and after the scratch treatment, the laminated body of the sheet materials is cut for each part, then transported onto the pickup table, and on the pickup table. It is projected from the second projector so as to identify the laminated body of the parts including the parts to be removed onto the laminated body of the sheet material. In addition to scratched parts, overlapping rollouts result in incomplete parts where the front or back of the part is missing. These defective parts need to be removed. Therefore, by projecting from the second projector so as to specify the laminated body of the parts including the parts to be removed on the laminated body of the sheet material on the pickup table, the above-mentioned defective parts can be surely removed. The scratched parts and the incomplete parts are collectively called defective parts.

Further, it is preferable that, for example, one sheet material is separately fed and cut in order to make up for the damaged parts without overlapping rolling. In this case, incomplete parts do not occur in the laminated body of the sheet material, but normal parts are also lacking. Therefore, the operator is informed that there is a part to be additionally cut by projecting from the second projector so as to identify the laminated body including the scratched part.

Particularly preferably, the number of defective parts in the laminated body of parts is projected from the second projector. Since the number of parts to be removed is displayed, it becomes easier to extract defective parts.

Side view of the extension system of the embodiment with a partial notch Block diagram showing the control system of the spreading system of the embodiment The figure which shows typically the projection pattern from a projector to a sheet material when a scratch mark is detected. A diagram schematically showing an operator's input screen A diagram schematically showing an example of rewinding the sheet material and re-rolling the sheet material so that the scratches come off the parts. A diagram schematically showing an example of extending one part to make up for a part including scratches. The figure which shows the projection pattern on the laminated body of the sheet material at the time of pickup schematically. Flowchart showing processing at the time of extension in the embodiment Flowchart showing processing at the time of pickup in the embodiment

The following are the optimum examples for carrying out the invention.

1 to 9 show examples and modifications thereof. FIG. 1 shows the roll spreading system 1 of the embodiment, and a cutting device 40 and a pickup table 42 are provided on the downstream side of the roll spreading device 2. The rolling table 4 is provided with a conveyor (not shown), and the laminated body 8 of the sheet material is carried out to the cutting device 40. The cutting device 40 and the pickup table 42 may not be provided.

The extension head 5 reciprocates on the extension table 4. The extension head 5 includes a carriage 6, mounts the original fabric 7, operates under the control of the controller 9, and displays various information on the monitor 10. The monitor 10 displays the arrangement of parts on the sheet material, and the operator can input whether the scratch is inside the part or outside the part through the monitor 10 or the like by an appropriate pointing device.

Reference numeral 12 is a traveling motor of the carriage 6. The sheet material 13 is unwound from the raw fabric 7 by the feeding roller 14 and conveyed by the conveyor 15. The thread unraveling, color unevenness, dents, etc. on the sheet material 13 are scratches, and scratch marks such as tapes, tags, and sticky notes with glue are attached to the edges of the sheet material at the scratched positions. The scratch mark is monitored by a scratch sensor 16 such as a camera, a height sensor, and a photoelectric sensor. The height sensor and the photoelectric sensor detect the tag by using the fact that the tag is located at a position higher than the sheet material 13.

The rolling head 5 includes a cutter unit 18, and the cutter unit 18 reciprocates in a direction perpendicular to the rolling direction of the sheet material 13 and cuts the sheet material 13 each time it reaches the end of the laminated body 8. The rolling direction (the direction in which the sheet material 13 is fed onto the rolling table 8) is, for example, from the left to the right in FIG.

The arrangement of the parts with respect to the laminated body 8 of the sheet material 13 is determined by the marking data (cutting data). The projector 20 projects the arrangement of parts on the surface of the laminated body 8 at all times or when a scratch is detected. The projector 20 may project by changing the color, the type of contour line, the presence or absence of hatching, and the like so that parts that may include scratches and other parts can be distinguished. Further, the projector 20 projects from directly above the laminated body 8, for example. The elevating mechanism 21 raises and lowers the projector 20 according to the height of the laminated body 8, and keeps the difference in height from the projector 20 to the surface of the laminated body 8 constant. The height of the stack is preferably measured by providing a height sensor (not shown) on the roll head 5 to measure the height of the stack 8, or it may be converted from the number of stacks of the stack 8. In this way, even if the number of stacked sheets changes, the arrangement of parts is projected at the same position and with the same size. Even if the arrangement of the parts to be projected is enlarged or reduced according to the height of the laminated body 8 instead of the elevating mechanism 21, the arrangement of the parts can be projected at the same position and with the same size.

Since it is inconvenient for the operator to return to the monitor 10 and input in the middle of the spreading, the operator can input from the mobile terminal 22 whether the scratch is inside or outside the part. This input includes at least whether the scratch is inside or outside the part, preferably in addition to specifying a position along the direction of extension of the scratch. Also preferably, if the scratch is inside a part, specify which part is inside. You may enter the position of the scratch so as to specify both the position along the rolling direction (x-direction position) and the position along the direction perpendicular to this (y-direction position). By dragging a cursor, a line, or the like with the pointing device 23, the operator uses the surface of the monitor 10, the mobile terminal 22, or the laminated body 8 (the surface of the sheet material 13) to avoid scratches and scratches. Therefore, the length to be shifted of the sheet material 13 and the like can be input. When displaying a cursor, a line, or the like on the surface of the sheet material 13, the cursor, the line, or the like is projected from the projector 20. When the monitor 10 or the mobile terminal 22 is provided with a touch panel, the position of scratches and the like can be directly input on the screen.

The cutting device 40 sucks and fixes the laminated body 8 on a cutting table by covering the laminated body 8 with an airtight transparent sheet such as vinyl chloride, and cuts the laminated body 8 according to the marking data. The laminated body 8 after cutting is carried out to the pickup table 42 by a conveyor (not shown). Then, preferably, a second projector 44 is provided near the pickup table 42 to display which part of the laminated body of which part has the incomplete part.

FIG. 2 shows a control system of the rolling extension system 2. The traveling drive 25 controls the traveling motor 12, and the feeding drive 26 controls the feeding roller 14 and the conveyor 15. The scratch sensor 16 detects a scratch mark on the sheet material 13. The cutter unit 18 cuts the sheet material 13, the monitor 10 displays various information regarding the spreading, and accepts the input of the operator. Further, in order to facilitate input by the operator, a mobile terminal 22 and a pointing device 23 are provided, but if the monitor 10 has another input means such as a touch panel, these may not be provided. The controller 9 includes a CPU 28 and a memory 30, stores marking data, and causes the spreading device 2 to perform scratch processing when a scratch is found in the part.

The communication interface 32 communicates with the cutting device 40 and the pickup table 42. The second projector 44 on the pickup table 42 side projects the arrangement of the parts on the surface of the laminated body 8 so as to identify the part laminated body including the particularly scratched parts. Data on which part has a scratch is transmitted to the pickup table 42 via the communication interface 32.

FIG. 3 shows a state in which the scratch mark 50 on the sheet material 13 is detected by the sensor, and 51 is a scratch. From the position of the scratch mark 50 and the marking data, it can be seen that one of the parts P1-P3 is likely to include the scratch 51, but the exact position of the scratch 51 is unknown. Therefore, the arrangement of the parts is projected from the projector 20 onto the sheet material 13, and the parts P1-P3 which may contain scratches are projected differently from the other parts depending on the color, lightness and darkness, and the presence or absence of hatching. Further, the extension head 5 is temporarily stopped, and the feeding of the sheet material 13 is stopped. The position in the direction of extension is x, and the position in the direction perpendicular to this is y.

FIG. 4 shows the screens of the mobile terminal 22, the monitor 10, and the like in the situation of FIG. The layout of the parts is displayed on the screen, and if the scratch is inside the part, click the "NO" button at the bottom right, and if it is outside the part, click the "OK" button. There is.

Preferably, the part where the scratch 51 is located is input by operating the cursor 54 or the like. When inputting the x-direction position of the scratch 51, for example, the line 52 or the like is displayed on the screen, and the line 52 is dragged by the pointing device 23 or the like to move the line 52 to the visually observed position of the scratch 51. When inputting the x-direction position and the y-direction position of the scratch 51, for example, the cursor 54 is dragged and clicked at a position overlapping the scratch 51. When the part with the scratch 51 is found and the x-direction position side of the scratch 51 is found, how much the sheet material 13 should be shifted along the extending direction to arrange the scratch 51 between the parts. Prove. Even when inputting the x-direction position and the y-direction position of the scratch 51, it is known how much the sheet material 13 should be shifted so that the scratch 51 can be arranged between the parts. It is possible not only to determine the length of the shift, but also to minimize the length of the sheet material when the overlap is extended. Further, if the part having the scratch 51 can be specified, the sheet material for the part having the scratch 51 can be separately rolled instead of the overlap rolling. The shift amount and the length of the overlap spread may be directly input by the operator in addition to being automatically obtained. For example, the shift amount can be set by inputting the line 52 or the like according to the position of the scratch and then moving the line 52 or the like to the target position where the scratch is desired to be moved. Similarly, it is also possible to specify the range of overlap spread using the line 52 or the like.

If there are scratches in the part, treat the scratches. The scratch treatment is, for example, in addition to the known overlap spreading, a treatment of moving the scratch 51 out of the part by shifting the position where the sheet material 13 is fed out (FIG. 5), or an additional marking of Patent Document 2 (FIG. 6). ) And so on.

In the scratch treatment of FIG. 5, the scratch 51 is moved to the outside of the part P2 by rewinding the sheet material 13 once and feeding it out again. For example, using the line 52 in FIG. 4, it is input how much the scratch 51 is shifted to the upstream side in the extending direction to move the scratch to the outside of the part. Alternatively, in FIG. 4, it is input that the scratch 51 is inside the part P2 and how far it is from the upstream end in the spreading direction of the part P2. Therefore, in response to these inputs, the position where the sheet material 13 starts to be fed is shifted to the upstream side in the spreading direction with the spread table 4 as a reference. In this way, the scratch 51 is moved to the outside of the part P2.

In the scratch treatment of FIG. 6, additional marking is performed. When it is input on the screen of FIG. 4 that the part P2 has a scratch 51, a sheet material 13 is added so as to take out one part P2, and the sheet material 13 is extended and cut. If there are a plurality of scratched parts, the sheet material 13 is stretched and cut so as to supplement all of them.

FIG. 7 shows a projection pattern from the second projector 44 onto the laminate 8 on the pickup table 42. For example, it is assumed that there is a scratched part on the fourth sheet from the top of the laminated body 56 of the parts, and the part is supplemented from the sheet material additionally marked in FIG. Therefore, the laminated body 56 of the parts including the scratched part is projected separately from the laminated body of other parts, and preferably the number of the scratched parts (fourth from the top in FIG. 7). indicate.

When overlapping rolling is performed as a scratch treatment, in addition to the parts containing scratches, the feeding of the sheet material is stopped in the middle of the laminated body 8 and the feeding of the sheet material is restarted from the middle, so that the parts are incomplete. Occurs. Incomplete parts can be identified when the position where the sheet material is cut and the position where the sheet material is restarted are known. Therefore, when the overlap is extended, it is preferable to display the laminated body of the parts including the incomplete parts separately from the laminated body of the normal parts in the display of FIG. 7, and in addition to this, the incomplete parts are displayed on the number of sheets. It is especially preferable to display if there is any.

In order to support the extraction of defective parts on the pickup table 42, in addition to the projector 44, a label including an indication of the number of defective parts may be attached to the laminated body of parts including the defective parts. good. For example, a labeler is provided on the roll head 5, and a label is attached to the uppermost sheet material of the laminated body 8.

FIG. 8 shows the extension algorithm, and FIG. 9 shows the projection algorithm at the time of pickup. The processes already shown in FIGS. 3 to 7 will be briefly described. When the scratch mark is detected in step S1 of FIG. 8, the feeding of the sheet material is temporarily stopped or slowed down (step S2). At this time, the arrangement of the parts is projected from the projector 20 onto the sheet material 13, and the parts that may include scratches are projected so as to be distinguished from the other parts (steps S3 and S4). Further, by raising and lowering the projector 20 according to the height of the laminated body 8 or expanding or reducing the arrangement of the parts, the parts are projected at the same position and the same size regardless of the number of laminated bodies 8. If there is a scratch on the outer line or seam allowance of the part and the part is not scratched, the scratch can be ignored. Since the seam allowance has a width, it is preferable to project the width including the seam allowance.

Then, the input of whether or not the scratch affects the part, that is, the input of whether or not the scratch treatment is necessary is requested (step S5). When the scratch affects the part, preferably, the x-direction position of the scratch is input (step S6), the y-direction position is input (step S7), or the shift amount for moving the scratch to the outside of the part is input. .. In this way, it is input which part needs to be scratched or how much the sheet material can be shifted to the upstream side in the spreading direction to move the scratch to the outside of the part.

When the worker's input is completed, or if it is not input whether the scratch is in the part within the specified time, the scratch processing is executed (step S8). The predetermined time is, for example, 1 minute or more and 10 minutes or less, preferably 2 minutes or more and 5 minutes or less. In FIG. 8, the overlap spreading is shown as the scratch treatment, but the scratch treatment (shift of the sheet material) in FIG. 5 or the scratch treatment (additional marking) in FIG. 6 may be used. Then, when the scratch treatment is completed, the feeding of the sheet material is restarted (step S9).

A plurality of scratch treatments may be enabled, and the controller may determine which scratch treatment to use depending on the position of the scratches and the like. For example, if the scratch can be avoided by shifting the sheet material from the position of the scratch on the part, the shift of the sheet material in FIG. 5 is used, and if the shift amount required to avoid the scratch is large or it is difficult to avoid it, , Perform either overlap extension or additional marking. Regarding whether to use overlap spreading or additional marking, prioritized conditions such as the waste area of the sheet material and the time required for scratch treatment are obtained, and the one with the minimum condition is automatically selected. Alternatively, the operator may select and set one in advance. Alternatively, the optimum scratch treatment method including the shift treatment may be automatically determined.

FIG. 9 shows the processing at the time of pickup, and the laminated body 8 is carried into the pickup table by a conveyor (step S11). Then, it is projected onto a laminated body of parts including defective parts, and at this time, the number of defective parts is also displayed (step S12).

1 Extension system
2 Rolling device 4 Rolling table 5 Rolling head 6 Cart 7 Original roll 8 Laminated body 9 Controller 10 Monitor 12 Traveling motor 13 Sheet material 14 Feeding roller 15 Conveyor 16 Scratch sensor 18 Cutter unit 20 Projector 21 Elevating mechanism 22 Portable terminal 23 pointing device
25 Travel drive 26 Feed drive 28 CPU
30 Memory 32 Communication interface 40 Cutting device 42 Pickup table 44 Projector 50 Scratch mark 51 Scratch 52 Line 54 Cursor 56 Laminate of parts

Claims (7)

In the rolling method, in which the sheet material is fed out on the rolling table by the rolling rolling device and the scratch mark on the sheet is detected by the sensor.
A plurality of sheet materials are laminated on the rolling table by the rolling rolling device, and at the same time, a plurality of sheet materials are laminated on the rolling table.
At the very least, when the sensor detects a scratch mark, the placement of the parts is projected onto the sheet material from the first projector so that the operator can compare the placement of the parts and the position of the scratches.
Accepts operator input regarding the need for scratch treatment when scratches affect parts,
According to the input of the worker, the scratch treatment is performed by the spreading system ,
After scratch treatment, the laminated body of sheet material is cut into parts, and then transported to the pickup table.
A method of spreading a roll, which comprises projecting from a second projector onto a laminate of sheet materials on a pickup table so as to identify a laminate of parts including parts to be removed . The rolling method according to claim 1, wherein when the scratch mark is detected, the rolling rolling device stops feeding the sheet material or reduces the feeding speed. Depending on the stacking height of the sheet material, the first projector is moved up and down, or the arrangement of the parts projected from the first projector is enlarged or reduced, and the same size is used regardless of the stacking height of the sheet material. The method of spreading according to claim 1 or 2, wherein the arrangement of parts is projected onto a position. The controller extracts parts that may contain scratches from the position of the scratch mark, and at the same time,
The method of spreading according to any one of claims 1 to 3, wherein the first projector projects the arrangement of the parts so that the parts that may contain scratches and the other parts are different. .. The method of spreading according to any one of claims 1 to 4, wherein the spreading system executes the scratch processing when the position of the scratch is not input for a predetermined time after detecting the scratch mark. The method of spreading the roll according to any one of claims 1 to 5, wherein the number of defective parts in the laminated body of the parts is projected from the second projector. In the rolling roll system, the sheet material is fed out on the rolling roll table by the rolling roll device, and the scratch mark on the sheet material is detected by the sensor.
The extension system further includes a cutting device and a pickup table.
Moreover, the roll-rolling device is configured to stack a plurality of sheet materials on the roll-rolling table.
The roll spreading device projects the arrangement of parts onto the sheet material, at least when the sensor detects a scratch mark, so that the operator can compare the arrangement of parts with the position of scratches. With the first projector,
It has a means of accepting operator input regarding the necessity of scratch treatment when scratches affect parts.
It is configured to perform scratch treatment by the spreading system according to the operator's input.
After the scratch treatment, the laminated body of the sheet material is cut into parts by the cutting device, and then transported onto the pickup table.
A rollout system characterized in that it is configured to project on a laminate of sheet materials on a pickup table so as to identify a laminate of parts including parts to be removed from the second projector .

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