Processing device

Abstract

To provide a processing device capable of improving positional accuracy even in a line having an accumulator.SOLUTION: A processing device includes accumulation means 12 and 13 arranged on a processing line L, length measurement means 21, 22 and 23 arranged on an upstream side U and a downstream side D thereof, and control means 20 that controls the processing line L, accumulation means 12 and 13 are capable of varying an amount of accumulation of a processing object W, the control means 20 includes a recording area for recording position information for each unit length along a longitudinal direction of the processing object W on the processing line L, a plurality of pieces of position information from a recording start position where position information is recorded on the most upstream side U to a recording end position where position information is recorded on the most downstream side D are arranged in addresses in the same order as on the processing line L, and at the location where the processing object W is accumulated in the accumulation means 12 and 13, the recording area according to the maximum accumulation amount of the accumulation means 12 and 13 is secured.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a processing apparatus.

Background Art

[0002] In processing apparatuses for processing films such as roll-to-roll, lines with accumulators are often used for continuous splicing of films, winding switching, and visual inspection. For example, Patent Document 1 shows a bag-making machine that forms a variable buffer in the middle of the line. Further, Patent Document 2 shows an example of an accumulation rate device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In addition to basic functions such as coating, drying, and laminating, auxiliary equipment such as inspection and labelers is added to the above lines. For example, when attaching a marking such as a label to the position of a film defect, it is necessary to construct an interlock etc. at each process using signals from each process such as splicing of the original roll for unwinding. In order to improve the accuracy of the position, it is necessary to grasp the position information as digital data in the same way as the actual film.

[0005] If there is an accumulator between each process on the line, since a change in distance intervenes before and after the accumulator, control that grasps accurate position information is required. When controlling by the feeding amount of the film before and after the accumulator, there is a possibility that a deviation occurs in the timing of the control output during the measurement of the extension amount of the accumulator.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide a processing apparatus capable of improving the positioning accuracy even in a line having an accumulator.

Means for Solving the Problems

[0007] A first aspect is a processing apparatus that processes a workpiece while conveying the continuous workpiece downstream from a roll pay-out position. The processing apparatus has, with the side closer to the roll pay-out position being the upstream side, a processing line set between it and the downstream side, an accumulation means disposed on the processing line, a first measuring means disposed upstream of the accumulation means on the processing line, a second measuring means disposed downstream of the accumulation means on the processing line, and a control means for controlling the processing line. The accumulation means has a variable accumulation amount of the workpiece according to its operation. Of the first measuring means and the second measuring means, one is a main measuring means and the other is a sub measuring means. The control means has a recording area for recording position information for each unit length along the length direction of the workpiece on the processing line. In the recording area, the position where the position information is recorded at the most upstream side is taken as the recording start position, and the position where the position information is recorded at the most downstream side is taken as the recording end position. A plurality of position information from the recording start position to the recording end position is arranged at addresses in the same order as on the processing line. For the location where the workpiece is accumulated in the accumulation means, a recording area corresponding to the maximum accumulation amount of the accumulation means is secured. When the accumulation means is in a fixed position where it is not operating, the control means shifts the position information from upstream to downstream according to the measurement signal of the main measuring means. During the operation of the accumulation means, the control means shifts the position information upstream of the accumulation means from upstream to downstream according to the measurement signal of the first measuring means, and shifts the position information downstream of the accumulation means from upstream to downstream according to the measurement signal of the second measuring means. When the accumulation means returns from the operating state to the fixed position, the control means integrates the position information of the location accumulated in the accumulation means into one piece of position information and sets the data amount of the position information of the location accumulated in the accumulation means to zero.

[0008] In the second aspect, during the operation of the accumulation means, for the position information that is shifted to the location where it is accumulated in the accumulation means from the upstream side of the accumulation means among the position information, the control means shifts it from the upstream side to the downstream side according to the measurement signal of the first measurement means, and for the position information that is shifted from the location where it is accumulated in the accumulation means to the downstream side of the accumulation means, the control means shifts it from the upstream side to the downstream side according to the measurement signal of the second measurement means, and when there is no position information that is shifted from the location where it is accumulated in the accumulation means to the downstream side of the accumulation means, the position information is directly shifted from the upstream side of the accumulation means to the downstream side of the accumulation means.

[0009] In the third aspect, when the accumulation means returns to the fixed position, if there is position information at the location where it is accumulated in the accumulation means, the control means integrates the position information with the position information that is the most downstream among the position information on the upstream side of the accumulation means, and shifts the obtained single position information to the position information that is the most upstream among the position information on the downstream side of the accumulation means, or integrates it with the position information that is the most upstream among the position information on the downstream side of the accumulation means.

[0010] In the fourth aspect, in the first to third aspects, processing means is arranged on the processing line, and the control means records the processing result by the processing means in the position information. In the fifth aspect, in the first to fourth aspects, inspection means is arranged on the processing line, and the control means records the inspection result by the inspection means in the position information. In the sixth aspect, in the fifth aspect, the control means controls the operation performed on the object to be processed downstream of the inspection means according to the inspection result. In the seventh aspect, in the first to sixth aspects, the object to be processed is a film.

Advantages of the Invention

[0011] According to the present invention, it is possible to provide a processing apparatus capable of improving the positioning accuracy even in a line having an accumulation.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0013] Hereinafter, the present invention will be described based on preferred embodiments.

[0014] FIG. 1 shows an example of a processing apparatus. This processing apparatus 10 processes a workpiece W while continuously conveying the workpiece W from the roll pay-out position toward the downstream side D. The side closer to the roll pay-out position is defined as the upstream side U. The workpiece W is a long object such as a film or a sheet, for example. The workpiece W is not limited to a resin film and a resin sheet, and may be a composite film or a composite sheet including paper, a metal foil, a vapor deposition film, or the like.

[0015] The workpiece W is continuously conveyed from the pay-out roll 11 on the upstream side U to the take-up roll 14 on the downstream side D in a roll-to-roll manner. Although not particularly shown, the workpiece W may be cut at the downstream side D without being wound around the take-up roll 14 to obtain a product of a fixed length. In this case, the workpiece W is continuously conveyed while being pulled out up to the position before the cutting position.

[0016] The processing line L is set between the upstream side U and the downstream side D. Accumulating means 12 and 13 are arranged on the processing line L. The accumulating means 12 and 13 can vary the accumulation amount of the workpiece W to be processed according to their operations. Measuring means 21, 22, and 23 are arranged on the upstream side U and the downstream side D of the accumulating means 12 and 13, respectively. The accumulating means may be arranged only one on the line if necessary, or three or more may be arranged.

[0017] The workpiece W has flexibility and can be fed from the feeding roll 11, wound onto the winding roll 14, and accumulated by the accumulating means 12 and 13.

[0018] In the illustrated processing apparatus 10, processing means 15 are arranged on the processing line L. The processing means 15 may be arranged one or more types selected from known apparatuses that perform processing such as coating, laminating, and punching on the workpiece W. A plurality of processing means 15 may be arranged in the length direction or the width direction of the workpiece W.

[0019] In the illustrated processing apparatus 10, inspection means 16 are arranged on the processing line L. The inspection means 16 may be arranged one or more types selected from known apparatuses such as optical, ultrasonic, and electromagnetic for inspecting the workpiece W. A plurality of inspection means 16 may be arranged in the length direction or the width direction of the workpiece W. The inspection means 16 may inspect the result of the processing by the processing means 15 on the downstream side D of the processing means 15.

[0020] In the processing apparatus 10 of the figure example, on the downstream side of the inspection means 16 in the processing line L, as an example of the operating means for the workpiece W, an operating means 17 such as label attachment is arranged. The label attachment means attaches a label to the workpiece W. The label is not particularly limited, and examples include an adhesive type, an adhesive type, a printing type, etc. Not limited to label attachment, the operating means 17 can perform marking on the workpiece W, removal of defective parts, etc. on the downstream side D of the inspection means 16. Examples of the marking method include printing by inkjet or stamp. When the processing means 15 applies an adhesive, the inspection means 16 (detection means for detecting the joint part) is arranged on the upstream side U of the processing means 15, and in the processing means 15 on the downstream side D of the detection means, application (skip) of the adhesive for the joint part may be omitted. In any case, it can be operated based on the result of the inspection by the inspection means 16.

[0021] For example, when the accumulation means on the downstream side D from the inspection means 16 is set as the accumulation means to which the control method of the embodiment is applied, the measuring means 21 arranged on the upstream side U of the accumulation means 13 on the processing line L is the first measuring means, and the measuring means 22 arranged on the downstream side D of the accumulation means 13 is the second measuring means.

[0022] Furthermore, the processing apparatus 10 includes a control means 20 for controlling the processing line L. The control means 20 can transmit and receive signals to and from each part such as the processing means 15, the inspection means 16, the operating means 17, and the measuring means 21, 22, 23. The signal transmission and reception may be wireless or wired.

[0023] Examples of the control means 20 include a programmable logic controller (PLC). The control means 20 has a recording area for recording position information for each unit length along the length direction of the workpiece W on the processing line L.

[0024] Fig. 2 schematically shows an example of the recording area 30. In this recording area 30, the position where position information is recorded on the most upstream side U is defined as the recording start position 31, and the position where position information is recorded on the most downstream side D is defined as the recording end position 32. A plurality of position information from the recording start position 31 to the recording end position 32 is arranged at the address 33 in the same order as on the processing line L.

[0025] The unit length is not particularly limited, and examples include 1 m, 50 cm, 20 cm, 10 cm, etc. When increasing the accuracy of the position information, the unit length may be shortened. When suppressing the amount of information, the unit length may be lengthened. Each address 33 corresponds to a unit length. The number of addresses 33 shown in Fig. 2 is shown fewer than the number required from the length of the actual object to be processed W for the sake of simplicity.

[0026] Depending on the state of the object to be processed W, etc., different codes can be set for the position information. A code having one meaning can be expressed by 1 bit or a plurality of bits. The position information recorded in one address 33 can be composed of 1 bit or a plurality of bits. A code expressed by 1 bit represents two types of information consisting of 0 or 1. A code expressed by a plurality of bits can represent 2 n to the power of n minus 1 types of information from 0 to 2 n However, fewer types of codes may be used. Examples of the size of the position information include 8 bits, 16 bits, etc., but it is not particularly limited to these. n The information included in the position information is not particularly limited, and examples include the splicing position of the object to be processed W, whether processing such as coating has been performed, whether inspection has been performed, the presence or absence of defects, etc. Depending on the content of the defect, different codes can also be assigned to different types of defects. In Figs. 3 to 7, the position information 36 stored in the address 33 is represented by a black mark, and it is illustrated and explained by distinguishing whether the position information 36 is recorded in the address 33.

[0027] The information included in the position information is not particularly limited, and examples include the splicing position of the object to be processed W, whether processing such as coating has been performed, whether inspection has been performed, the presence or absence of defects, etc. Depending on the content of the defect, different codes can also be assigned to different types of defects. In Figs. 3 to 7, the position information 36 stored in the address 33 is represented by a black mark, and it is illustrated and explained by distinguishing whether the position information 36 is recorded in the address 33.

[0028] By using the position information 36, various controls can be performed, such as control not to apply coating to the joint part, control to perform inspection only on the coated part, control to attach a label to the position of a defect, and control to switch so that winding is not required for a predetermined part where processing such as coating or inspection is not performed. Further, when the workpiece W is fully wound on the winding roll 14 and the product is switched, records such as the position and ratio of defects included in the product can also be issued.

[0029] Regarding the locations where the workpiece W is accumulated in the accumulation means 12 and 13, recording areas M2 and M4 corresponding to the maximum accumulation amounts of the accumulation means 12 and 13 are secured. The recording area M1 on the most upstream side U corresponds to the workpiece W upstream of the accumulation means 12. The intermediate recording area M3 corresponds to the workpiece W between the accumulation means 12 and 13. The recording area M5 on the most downstream side D corresponds to the workpiece W downstream of the accumulation means 13.

[0030] The addresses 33 included in the recording area 30 can be used for recording the position information 36 corresponding to different positions on the processing line L. Although not particularly shown, a specific address 33 may be used for a purpose different from the recording of the position information 36.

[0031] For example, the recording area 30 may have accumulation number recording addresses 34 and 35 for recording the number of the position information 36 accumulated in the recording areas M2 and M4. Thereby, the number of the position information 36 accumulated in the recording areas M2 and M4 can be easily read out. For example, the accumulation number recording address 34 of the recording area M2 may be arranged between the recording area M1 and the recording area M2, and the accumulation number recording address 35 of the recording area M4 may be arranged between the recording area M3 and the recording area M4.

[0032] The operation of the control means 20 is executed using a program or the like. The program can not only execute a predetermined operation but also change the operation using the data recorded at a predetermined address 33.

[0033] The control means 20 operates to shift the position information 36 to an appropriate address 33 on the downstream side D in accordance with the conveyance of the object W to be processed. Further, when an address 33 different from the purpose of recording the position information 36, such as the above-described accumulated number recording addresses 34 and 35, is set, the control means 20 operates not to record the position information 36 at the address 33.

[0034] Of the first measuring means 21 and the second measuring means 22, one is the main measuring means and the other is the sub-measuring means. For example, the measuring means 21 corresponding to the object W to be processed between the accumulating means 12 and 13 may be the main measuring means, and the measuring means 22 corresponding to the object W to be processed on the downstream side D from the accumulating means 13 may be the sub-measuring means. As the main measuring means, the measuring means for measuring the section including the object W longer than the sub-measuring means may be selected.

[0035] In FIGS. 3 to 7, the operation of the control means 20 in the recording area M4 for recording the position information 36 of the location where it is accumulated in the accumulating means 13, the recording area M3 on the upstream side U thereof, and the recording area M5 on the downstream side D will be described as an example.

[0036] When the accumulating means 13 is at a fixed position where it is not operating, the control means 20 shifts the position information 36 from the upstream side U to the downstream side D in accordance with the measurement signal of the first measuring means 21 serving as the main measuring means.

[0037] For example, as shown in FIG. 3, in the recording areas M3 and M5, operations 41 and 43 for shifting the respective position information 36 to the next address 33 are performed. When the accumulating means 13 is at a fixed position, since the position information 36 is not accumulated in the recording area M4, an operation 42 for shifting the position information 36 from the address 37 immediately before accumulation to the address 38 immediately after accumulation is performed.

[0038] Here, the pre-accumulation address 37 refers to the last address 33 in the recording area M3 on the upstream side U, and the post-accumulation address 38 refers to the first address 33 in the recording area M5 on the downstream side D. In the pre-accumulation address 37, the position information 36 at the most downstream side D among the upstream side U of the accumulation means 13 is recorded. Also, in the post-accumulation address 38, the position information 36 at the most upstream side U among the downstream side D of the accumulation means 13 is recorded.

[0039] In the case of a fixed position, since the accumulation amount of the workpiece W in the accumulation means 13 does not change, the upstream side U and the downstream side D of the accumulation means 13 are controlled using the same measuring means 21. Thereby, compared with the case of using a plurality of measuring means 21, 22, it is possible to prevent the error of the measured values of the measuring means 21, 22 from accumulating. That is, when the measured value of the measuring means 21 on the upstream side U and the measured value of the measuring means 22 on the downstream side D do not become exactly the same, the difference between the respective measured values becomes a systematic error. By using a single measuring means 21, the difference between the measured values of the plurality of measuring means 21, 22 does not occur systematically.

[0040] During the operation of the accumulation means 13, the control means 20 shifts the position information 36 in accordance with the change in the amount of the workpiece W accumulated in the accumulation means 13. Also, the workpiece W on the upstream side U of the accumulation means 13 is controlled using the measuring means 21 on the upstream side U, while the workpiece W on the downstream side D is controlled using the measuring means 22 on the downstream side D. The shift of the position information 36 preferably makes the shifted address 33 be the next of the address 33 before the shift. However, in some cases, it may be shifted skipping one or a plurality of specific addresses 33.

[0041] During the operation of the accumulation means 13, for the position information 36 on the upstream side U relative to the accumulation means 13, the control means 20 performs an operation 41 of shifting from the upstream side U to the downstream side D in response to the measurement signal of the measuring means 21 on the upstream side U. Also, for the position information 36 on the downstream side D relative to the accumulation means 13, the control means 20 performs an operation 43 of shifting from the upstream side U to the downstream side D in response to the measurement signal of the measuring means 22 on the downstream side D.

[0042] During the operation of the accumulation means 13, by performing control using different measuring means 21 and 22 on the upstream side U and the downstream side D of the accumulation means 13 respectively, the respective errors on the upstream side U and the downstream side D can be suppressed.

[0043] During the operation of the accumulation means 13, for the position information 36 to be shifted from the recording area M3 to the recording area M4, the control means 20 performs an operation 44 of shifting from the upstream side U to the downstream side D in response to the measurement signal of the measuring means 21 on the upstream side U. The operation 44 is a shift from the pre-accumulation head address 37 to the accumulation head address 39. Here, the accumulation head address 39 is the first address 33 of the recording area M4.

[0044] When the amount of the workpiece W accumulated in the accumulation means 13 increases, an operation 45 of shifting the position information 36 from the upstream side U to the downstream side D may be performed so that the data amount of the position information 36 in the recording area M4 increases. For example, a case where the conveyance speed on the upstream side U of the accumulation means 13 is faster than the conveyance speed on the downstream side D of the accumulation means 13 can be cited.

[0045] Also, when the data amount of the position information 36 in the recording area M4 does not increase, as shown in FIG. 5, an operation 46 of shifting the position information 36 from the recording area M4 to the pre-accumulation address 38 may be performed. For example, a case where the conveyance speed on the downstream side D of the accumulation means 13 is faster than the conveyance speed on the upstream side U of the accumulation means 13 can be cited.

[0046] When attempting to perform operation 46 to shift position information 36 from recording area M4 to recording area M5, if the data of position information 36 is not accumulated in recording area M4, empty data may be shifted to recording area M5 on the downstream side D. In this case, the empty data shifted to recording area M5 may be interpreted as position information 36 that does not include data such as defects at that position. The empty data shifted to recording area M5 may be a copy of the empty data included in recording area M4.

[0047] During the operation of the accumulation means 13, with respect to the position information 36 to be shifted from recording area M4 to recording area M5, it is shifted from the upstream side U to the downstream side D in accordance with the measurement signal of the measurement means 22 on the downstream side D. If there is no position information 36 to be shifted from recording area M4 to recording area M5, even during the operation of the accumulation means 13, an operation 42 to shift position information 36 from recording area M3 to recording area M5 may be performed in the same manner as the fixed-position operation shown in FIG. 3.

[0048] As described above, when the recording area 30 includes the address 33 that records the number of pieces of position information 36 accumulated in recording area M4, in accordance with the shift of position information 36, the number of pieces of position information 36 accumulated in recording area M4 is also updated as necessary.

[0049] During the operation of the accumulation means 13, a flag used when shifting position information 36 between different recording areas M3, M4, and M5 may be set. This type of flag may be secured at the address 33 used for purposes different from the recording of position information 36. As an example, in order to distinguish whether the position information 36 included in recording area M4 has been shifted, a fetch flag may be used to execute a flow such as (1) to (3).

[0050] (1) When shifting a plurality of pieces of position information 36 from the upstream side U to the downstream side D, in order to prevent overwriting of the position information 36, the position information 36 included in the address 33 on the more downstream side D is shifted first, and the position information 36 included in the address 33 on the more upstream side U is shifted later.

[0051] (2) After shifting the position information 36 of the immediately - after - accumulation address 38, it is necessary to select from which of the recording areas M3 and M4 to shift the position information 36 thereafter. When the position information 36 is included in the recording area M4, the position information 36 taken out from the recording area M4 is shifted to the immediately - after - accumulation address 38. When the position information 36 is not included in the recording area M4, the position information 36 taken out from the recording area M3 is shifted to the immediately - after - accumulation address 38 and the extraction flag is set to ON.

[0052] (3) Further, when shifting the position information 36 included in the recording area M3, if the extraction flag is OFF, the position information 36 is shifted from the immediately - before - accumulation address 37 to the head - of - accumulation address 39. If the extraction flag is ON, since the immediately - before - accumulation address 37 is empty, the previous position information 36 is sequentially shifted within the recording area M3 and the extraction flag is set to OFF.

[0053] As described above, while the accumulation means 13 is operating, control is performed using different measuring means 21 and 22 on the upstream side U and the downstream side D. On the other hand, when the accumulation means 13 is at a fixed position, control is performed using a single measuring means 21. In the control at the fixed position, as shown in FIG. 3, a state where the position information 36 is not accumulated in the recording area M4 is assumed. For this reason, when the accumulation means 13 returns from the operating state to the fixed position, the control means 20 integrates the position information 36 accumulated in the recording area M4 into one piece of position information 36 and sets the data amount of the recording area M4 to 0.

[0054] As a process of integrating the data in the recording area M4 into one piece of position information 36, for example, as shown in FIG. 6, the position information 36 included in the recording area M4 is integrated with the position information 36 at the pre-accumulation immediate address 37, and the obtained one piece of position information 36 is shifted when the post-accumulation immediate address 38 is empty, or an operation 47 of integration is performed when there is position information 36 at the post-accumulation immediate address 38. Alternatively, as shown in FIG. 7, one piece of position information 36 obtained by integrating only the position information 36 included in the recording area M4 is shifted when the post-accumulation immediate address 38 is empty, or an operation 48 of integration is performed when there is position information 36 at the post-accumulation immediate address 38.

[0055] As an operation of integrating a plurality of pieces of position information 36 into one piece of position information 36, for example, a logical sum operation (OR operation) can be mentioned. When each piece of position information 36 is composed of 1 bit, by the logical sum operation, if the values of all the position information 36 are 0, the integrated value is also 0, and if the value of at least one piece of position information 36 is 1, the integrated value is 1. Optionally, other operations such as a logical product operation (AND operation) may be used.

[0056] When each piece of position information 36 is composed of a plurality of bits, by the logical sum operation, the logical sum of the first bits of each piece of position information 36 becomes the first bit after integration, and the same applies to the second bit and subsequent bits, maintaining the order of the bits in the position information 36. When representing the presence or absence of coating, processing, inspection, defects, etc., with 1 for presence and 0 for absence, according to the logical sum operation, if at least one piece of position information 36 contains information on presence, the information on presence can be maintained after integration.

[0057] According to the control method of the embodiment, in the processing line L having the accumulation means 12, 13, the positional accuracy of the workpiece W to be processed can be improved.

[0058] As described above, the present invention has been described based on preferred embodiments, but the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention.

[0059] In the above-described illustrated example, the control in the accumulation means 13 and the regions U and D on its upstream and downstream sides was described. However, the control in the accumulation means 12 and the regions U and D on its upstream and downstream sides can be performed in the same manner. In this case, the measuring means 23 and the recording area M1 correspond to the upstream side U of the accumulation means 12, the recording area M2 corresponds to the accumulation means 12, and the measuring means 21 and the recording area M3 correspond to the downstream side D of the accumulation means 12. The same applies when three or more accumulation means are arranged.

[0060] In the illustrated example, the configuration in which the object W to be processed on the processing line L is a single object W from the upstream side U to the downstream side D is mentioned. Although not particularly shown, a plurality of objects W to be processed may be arranged on the processing line L. For example, another object W may be laminated on one object W from the middle of the processing line L. Alternatively, in the middle of the processing line L, the object W may be cut in the width direction and a plurality of objects W in the width direction may be separated.

[0061] When a plurality of objects W to be processed are arranged on the processing line L, all the objects W to be processed can be the control targets of the position information 36. However, among them, a specific object W to be processed may be the control target of the position information 36. For example, the main object W to be processed may be fed out from the pay-off roll 11, another object W may be laminated after processing the main object W to be processed, and the obtained laminated material may be wound around the take-up roll 14. In this case, on the upstream side U from the lamination position, the main object W to be processed may be the control target of the position information 36, and on the downstream side D from the lamination position, the laminated material may be the control target of the position information 36.

Explanation of Reference Numerals

[0062] D... downstream side, L... processing line, M1, M2, M3, M4, M5... recording areas, U... upstream side, W... object to be processed, 10... processing device, 11... pay-off roll, 12, 13... accumulating means, 14... take-up roll, 15... processing means, 16... inspection means, 17... operating means, 20... control means, 21, 22, 23... measuring means, 30... overall recording area, 31... recording start position, 32... recording end position, 33... address, 34, 35... accumulated quantity recording address, 36... position information, 37... address immediately before accumulation, 38... address immediately after accumulation, 39... head address of accumulation, 41, 42, 43, 44, 45, 46, 47, 48... operations.

Claims

1. A processing device that processes continuous workpieces while transporting the workpieces downstream from a roll payout position, The processing device has an upstream side close to the roll payout position, and a processing line set between the upstream side and the downstream side. An accumulation means disposed on the processing line; A first measuring means is disposed upstream of the accumulation means on the processing line; A second measuring means is disposed downstream of the accumulation means on the processing line; A control means for controlling the processing line, the accumulation means is operable to vary the amount of the workpiece accumulated according to the operation; One of the first measuring means and the second measuring means is a main measuring means and the other is a sub measuring means, the control means includes a recording area for recording position information for each unit length along a longitudinal direction of the object on the processing line, in said recording area, a position on the most upstream side where said position information is recorded is defined as a recording start position, a position on the most downstream side where said position information is recorded is defined as a recording end position, a plurality of pieces of position information from said recording start position to said recording end position are arranged in addresses in the same order as on said processing line, and a recording area according to a maximum accumulation amount of said accumulation means is secured for a portion where said processing object is accumulated in said accumulation means, When the accumulation means is in a fixed position where it is not operating, the control means shifts the position information from the upstream side to the downstream side in response to a length measurement signal from the main length measurement means, During the operation of the accumulation means, the control means shifts the position information upstream of the accumulation means from the upstream side to the downstream side in response to a length measurement signal from the first length measurement means, and shifts the position information downstream of the accumulation means from the upstream side to the downstream side in response to a length measurement signal from the second length measurement means, When the accumulation means returns to the fixed position from an operating state, the control means integrates the position information of the locations accumulated in the accumulation means into one piece of position information, and sets the amount of data of the position information of the locations accumulated in the accumulation means to zero.

2. During the operation of the accumulation means, the control means The position information to be shifted from the upstream side of the accumulation means to the location to be accumulated in the accumulation means is shifted from the upstream side to the downstream side in response to a measurement signal of the first measurement means, 2. The processing apparatus according to claim 1, characterized in that the position information to be shifted from the point accumulated in the accumulator means to the downstream side of the accumulator means is shifted from the upstream side to the downstream side in response to a length measuring signal of the second length measuring means, and when there is no position information to be shifted from the point accumulated in the accumulator means to the downstream side of the accumulator means, the position information is shifted directly from the upstream side of the accumulator means to the downstream side of the accumulator means.

3. 3. The processing apparatus according to claim 1 or 2, characterized in that when the accumulation means returns to the fixed position, if there is position information at a location accumulated in the accumulation means, the control means combines the position information with the most downstream position information among the position information upstream of the accumulation means, and shifts the obtained one piece of position information to the most upstream position information among the position information downstream of the accumulation means, or combines it with the most upstream position information among the position information downstream of the accumulation means.

4. 3. The processing apparatus according to claim 1, further comprising a processing means disposed on the processing line, and the control means records a processing result by the processing means in the position information.

5. 3. The processing apparatus according to claim 1, further comprising an inspection means disposed in the processing line, and the control means records an inspection result by the inspection means in the position information.

6. 6. The processing apparatus according to claim 5, wherein the control means controls an operation to be performed on the workpiece downstream of the inspection means in accordance with the inspection result.

7. 3. The processing apparatus according to claim 1, wherein the object is a film.

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