JPH0131603B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is capable of repeatedly printing, printing printed continuous paper, developed negative film, and other forms of continuous paper, developed negative film, etc., in which exposed areas of a certain length are displayed continuously with some margins interposed. The present invention relates to a cutting device for a strip-like material having repeated exposed portions for cutting the strip-shaped material into strips with several exposed portions as one unit.

(Prior art) In this type of cutting device, when the material to be cut is expensive or difficult or impossible to reproduce, erroneous cutting cannot be tolerated and the cutting is performed in the middle of the exposed part. A high degree of reliability is required for the equipment to prevent accidents. For this reason, in the past, only the general feed of the material was automated, and the final cutting command was given manually by the operator based on visual judgment, or semi-automatically, or cutting marks were placed in advance for each piece of the exposed part. It was common to use one of the following methods: attach a mark, read it, and automatically cut it. However, the former method is inefficient because one person intervenes every time, and the latter method is also not necessarily efficient because it requires manpower at the stage of giving cutting marks in advance.

(Problem to be Solved by the Invention) The problem to be solved by the present invention is to provide a strip-shaped material having repeated exposed portions that can solve the above-mentioned problems and improve efficiency while maintaining high reliability. The purpose of this invention is to provide cutting equipment for the following purposes.

(Means for Solving the Problems) The present invention provides a strip-shaped material in which exposed portions of a certain length such as developed negative film are repeatedly displayed with a slight margin between adjacent exposed portions. A traveling device equipped with a guide path for traveling, and a number of strips of material attached and sent at a forward position of the traveling device with respect to the traveling direction of the strip of material along the guide path. A cutting mechanism section that cuts into strips with a total length Lo of the exposed portion of the frame and the same number of blank spaces, and a cutting mechanism section that cuts the strip into strips with a total length Lo of the exposed portion of the frame and the same number of blank spaces, and the cutting mechanism section that cuts the exposed portion of one frame or several frames displayed on the strip material. A first detection unit for detecting a blank area attached to the traveling device at a position on the proximal side with respect to the running direction of the strip material along the guide path by a total length l of each length of the blank area and the same number of blank areas. and a second detection section for detecting a blank area, which is provided on the proximal side in the traveling direction of the strip material by the difference between the length Lo of the strip and the length l, that is, Lo-l, from the first detection section. and a control circuit that integrally controls each of the above parts, and the control circuit controls the above-mentioned after the cutting operation of the cutting mechanism part is completed.
If the first detection unit detects a blank area within a certain detection time after the time has elapsed for the strip material to travel a length corresponding to Lo-l, from that point on, the
The strip material is stopped after traveling for a length corresponding to
If the first detection section detects the blank area again during this stop, it will issue a cutting command signal to the cutting mechanism section.
If a blank area is not detected, a signal is output to the alarm; on the other hand, even if the first detection unit does not detect a blank area within the detection time, if the second detection unit detects a blank area, a signal is output to the alarm. If the strip-shaped material is run for a length corresponding to l from this point and then stopped, a signal is sent to the alarm, and neither the first detection unit nor the second detection unit detects the blank area within the detection time. The present invention is characterized in that it is configured to run the strip material for a length corresponding to Lo and then stop and issue a signal to an alarm.

(Examples) Next, the present invention will be described in detail with reference to illustrated examples.

Reference numeral 1 denotes a running device for running a strip-shaped material C in which an exposed portion A of a certain length is repeatedly displayed with a margin B interposed therebetween at high speed in the direction of an arrow.
A guide path 2 that holds and guides a strip material C fed out from a material feeding section (not shown), and a pressure roller 3 provided at a position in the middle of the guide path 2 to sandwich the guide path 2 from above and below.
and a drive roller 4, and a pulse motor 5 installed beside the guide path 2 to drive the drive roller 4.
Further, reference numeral 6 denotes a cutting mechanism section provided in the forward direction of the guide path 2 at right angles to the guide path 2;
is a fixed blade 7 fixedly provided on the lower side of the guideway 2.
and a movable blade 9 provided above the fixed blade 7 so as to be movable up and down by a cutting blade drive mechanism 8. On the other hand, reference numeral 10 indicates an exposed area A of the strip material C from the cutting line of the cutting mechanism 6 in order to detect the margin area B.
and a first detection part for detecting a blank area provided at a right angle to the guide path 2 on the proximal side in the traveling direction by a length (l) corresponding to one frame or several frames of the blank area B; The first detection unit 10 is cut by an appropriate number of frames of the exposed portion A, in the illustrated embodiment, the length (Lo) of the strip D to be cut is 6 frames of the exposed portion A and the margin portion B. Further, on the proximal side, a second detection section is provided perpendicularly to the guide path 2 like the first detection section 10, and the first detection section 10 and the second detection section 11 are provided.
are both light receiving sections 12 and 13 provided above the guide path 2.
and a light source section 12', 1 provided on the lower side opposite to this.
3' and the light receiving section 12,
13 detects the trailing edge of the leading piece of the showing part A and the leading edge of the trailing piece of the showing part A that immediately follows the showing part A for each intermediate blank part B of the showing part A that is continuous. Therefore, it is composed of four photoelectric elements arranged at right angles to the guide path 2. 14 is a control circuit mainly composed of a microcomputer or a normal circuit for controlling the pulse motor 5 and the cutting blade drive mechanism 8, and the control circuit 14 is connected to a pulse motor control circuit 15 for controlling the pulse motor 5.
, an oscillator 16 that generates timing pulses for the pulse motor control circuit 15 and other parts of the control circuit, a counter section 17 that is associated with the oscillator 16 and obtains various control signals to be described later, and the counter section The first detection unit 1
0, a detection control unit 18 for detecting the necessary arrangement signals of the exposed area A and the margin area B from the second detection unit 11;
, a main control circuit 20 that integrates the detection control section 18 and the counter section 17 and provides predetermined control signals to the pulse motor 5, the cutting blade drive mechanism 8, and the alarm 19.
It is composed of: However,
Reference numerals 21, 22, 23, and 24 are elements of the counter section 17, and are a first sampling counter, a gate counter, a positioning counter, and an accident counter, which are set to produce the timing shown in FIG. The sampling counter 21 is for counting the number of pulses corresponding to the time from the preceding cutting operation until the next margin area B to be cut is sent to the first detection section 10, The sampling counter 21 is for counting the number of pulses corresponding to the time during which the strip-shaped material C travels approximately twice the length of its margin portion B after the sampling counter 21 has finished counting, and the positioning counter 23 is for counting the number of pulses corresponding to the time for the strip-shaped material C to travel approximately twice the length of its margin portion B. 1
This is to count the number of pulses corresponding to the time during which the strip-shaped material C travels while feeding the margin portion B to be cut, which has been sent to 0 and is detected, to the cutting line of the cutting mechanism section 6. Finally, the accident counter 24
is the length Lo of the standard strip D that is predetermined to be cut from the previous cutting line in the event of an accident in which both the first detection unit 10 and the second detection unit 11 do not detect the margin area B.
This is for counting the number of pulses corresponding to the time during which the strip material C is run. On the other hand, 2
5 is a comparison circuit connected to each set of four photoelectric elements of the light receiving section 12 as an element of the detection control section 18, and the output of the comparison circuit 25 is connected to the trailing edge of the preceding frame and the leading edge of the trailing frame. provided to detect the
Connected to the AND gate 26 and NOR gate 26', and the output side of both looks at the OR relationship between the two.
It is connected via the OR gate 27 to an AND gate 28 which checks the establishment of an AND relationship with the gate signal G based on the gate counter 22 outputted through the main control circuit 20. The output is connected and supplied to the main control circuit 20 as a basic detection signal E ₁ ' of the first detection section 10. Reference numeral 29 denotes an integrating circuit which is provided as necessary to improve the accuracy of the verification and integrates the density of one frame in order to confirm the existence of the exposed portion A. The integrating circuit 29 is connected to the gate counter 2
A second sampling counter 3 provided for determining the start time _T3 of the time period in which the display portion A passes through the first detection unit 10 for one frame immediately before the first detection unit 10 opens.
The gate signal S ₂ outputted through the main control circuit 20 with reference to 0 and the output of the light source section 12' of the first detection section 10 are connected to the input side via the AND gate 31, and the output side is connected to the input side of the AND gate 28. It is connected to the input side of the AND gate 32 together with the output side. Further, 33 is a differentiation for differentiating the outputs of the four photoelectric elements of the light receiving section 13 of the second detection section 11 to detect the trailing edge of the leading frame and the leading edge of the trailing frame of the display section A. The output side of the differentiating circuit 33 is connected to comparing circuits 34, 34' which separate the positive and negative outputs of the leading edge and trailing edge and check their levels, and the comparing circuits 34, 34' The output side of the OR gate 35 connected to the input side is connected to an AND gate 36 together with the output line of the gate signal G output from the main control circuit 20 with the gate counter 22 as a reference. Then, it is connected to the main control circuit 20 as the margin detection signal E ₂ of the second detection section 11, and on the other hand, it is connected to the storage input register 37. Reference numeral 38 denotes a storage register connected via an AND gate 39 that takes an AND relationship between the output side of the storage input register 37 and a storage command signal M that is output from the main control circuit 20 after the disconnection operation. The output side of the register 38 and the output side of the AND gate 32 of the first detection section 10 are sent to the main control circuit 20 as the margin detection signal E ₁ of the first detection section 10 via the AND gate 40.
It is connected to the. On the other hand, the most basic configuration of the main control circuit 20 that integrates the control operations of the control circuit 14 based on the above configuration is configured under the following conditions so that the operation order is maintained as shown in FIG. It is something that will be done. That is, after the cutting operation is completed,
A certain amount of detection is performed after the elapse of time T ₁ during which the strip material C travels from the length (Lo) of the strip D to a length (l) corresponding to one or several frames of the exposed portion A and the margin portion B. If the first detection unit 10 detects the blank area B within time _T2 , from that point on, the strip-shaped material is If the first detection section 10 detects the margin B when the margin B is stopped after traveling, a cutting command signal is issued to activate the cutting mechanism section 6, and if it is not detected, a signal is sent to the alarm 19. and the first detection unit 1 within the detection time _T2 .
0 has not detected the margin area B and the second detection unit 11
If the blank area B is detected, from this point on, the strip material C is run for a length (l) corresponding to one frame or several frames of the exposed area and the blank area, and then stopped, and the alarm is activated. 19, and furthermore, if neither the first detection unit 10 nor the second detection unit 11 detects the margin part B within the detection time _T2 , the predetermined standard length of the strip D ( The belt-like material C is made to travel by a distance (Lo) and then stopped to issue a signal to the alarm 19. In addition, in this embodiment, the arrangement of the exposed portions A and the margin portions B is such that the blank portion B between two successive exposed portions A is arranged by one set of light receiving portions 12 and 13, respectively. , the light receiving parts 12, 13 and the light source parts 12', 1 are arranged so that the front edge and the rear edge of one piece of the exposed part A can be detected.
3' respectively, or detect the leading edge and trailing edge of the piece of one exposed part A in a temporal manner using a pair of detection units arranged in the first detection unit 10 and the second detection unit 11. This can be easily changed to a configuration in which sampling gates are opened and closed. In addition, the distance between the first detection section 10 and the second detection section 11 is determined by the strip D in the illustrated embodiment.
It is assumed that both detection units detect the same margin part B twice so as to match the length (Lo) of , and can be reconfirmed by the storage register 38. With this configuration, the strip material C is guided from a material feeding section (not shown), passed between the pressure roller 3 and the drive roller 4 of the traveling device 1, and guided along the guide path 2.
After aligning the margin B at the tip of the strip-shaped material C with the cutting line determined by the fixed blade 7 and movable blade 9 of the cutting mechanism section 6, the cutting blade drive mechanism 8 is operated as a preparatory operation to perform so-called cueing. The first detection section 10, the light source sections 12' and 13' of the second detection section 11, and the control circuit 14 are started to start the oscillator 16 of the control circuit 14, and the pulse motor control circuit 15 is started by the start command signal of the main control circuit 20. , the pulse motor 5 and the drive roller 4 are started to start running the strip material C, the oscillation output is supplied from the oscillator 16 to the counter section 17 in parallel with the pulse motor control circuit 15, and the first sampling counter 21 , the second sampling counter 30, and the accident counter 24 each start counting the supplied pulses. However, as shown in the time chart of FIG. 3 and the flow chart of FIG.
1 from the length (Lo) of exposed part A and margin part B
Counting by the gate counter 22 is started on the condition that the time T ₁ for the strip material C to run by a length (l) corresponding to a frame or several frames has elapsed, and the gate counter 22 counts a predetermined constant number. An ON gate signal G is applied to the AND gate 28 of the first detection unit 10 and the AND gate 36 of the second detection unit 11 of the detection control unit 18 for a certain detection time T ₂ until counting.
If you configure it so that it gives
The light receiving section 12 of the first detecting section 10 exits the trailing edge of the preceding piece and detects the margin B, and all of them are turned on, and an output is obtained to the AND gate 26 via the comparison circuit 25. From the blank area B to the next exposed area A, one of them becomes ON and the comparison circuit 2 is turned on.
If an output is obtained from the NOR gate 26' via the gate 5, an output is generated at the OR gate 27, and together with the fact that the gate signal G is ON, the AND gate 28
The output is obtained. Prior to this, if the second sampling counter 30 counts a predetermined number until time _T3 , the main control circuit 20 sends the gate signal _S2 to the AND gate 31 until time _T1 , that is, the first detection unit 10. The output of the light source section 12' is integrated by the integrating circuit 29, and if the display section A that has just passed the first detection section 10 is not blank, the output of the AND gate 28 is An output is obtained from an AND gate 32 which looks at the AND relationship between the two, and is designed to improve the detection accuracy of the first detection section 10. On the other hand, the second detection section 11
If the strip body D is provided further back by the length (Lo), the second detection unit 11 will detect the margin B which is then detected by the first detection unit 10.
If the light receiving section 13 detects a change in density between the exposed area A and the margin area B, the differentiating circuit 3
3 and either of the comparison circuits 34 and 34'
There is a power in the gate 35, and this output is the gate signal G
is synchronized with the AND gate 36, and is sent to the main control circuit 20 as a margin detection signal _E2 , and on the other hand is transferred to the storage input register 37, and is then sent as a storage command signal output from the main control circuit 20 after the cutting operation. M, storage register 3 by AND gate 39
8 is stored after the cutting operation. Now, the first one after cueing
For cutting, this content is set to ON, but from now on, it means checking the cutting margin B twice, and since the output is obtained to the AND gate 32, the AND gate 40 is established. The margin detection signal E 1 from the first detection section 10 is sent to the main control circuit 20 only when the margin detection signal E ₁ is detected by the first detection section 10 . In this case, the main control circuit 20 starts the positioning counter 23 based on the margin detection signal _E1 , and after the count ends, issues a stop command signal for the pulse motor 5 to the pulse motor control circuit 15 to stop the strip material C. If you do this, at this time, you can cut the standard strip D from the previous cutting line.
This means that the margin B, which is located close to the length (Lo) of The first strip D is automatically and accurately separated from the distal end portion, and then the strip D is sent out to the next process by a strip delivery device (not shown). When the cutting operation is completed, the main control circuit 20 returns to the beginning of one cycle, and the counter section 1
If 7 is reset and restarted, the above operation will be repeated. However, during the above cycle, if the first detection unit 10 does not detect the margin B while the gate counter 22 is counting, that is, the arrangement of the exposed portions A is disordered and the exposed portion A is located at the margin B. If the front and rear exposed areas A overlap, the above operation process is not performed, and the second detection unit 11 detects the margin area B while the gate signal G is being output. If it is detected, the AND gate 36 is established and the margin detection signal _E2 is sent to the main control circuit 20. From this point on, the positioning counter 23 starts counting, and at the end of the count, the transfer stops. , the cutting command signal for the strip material C is not issued, but an alarm is issued to the alarm device 19. That is, in this case, positioning is performed based on the margin B that is several frames further back from the margin B that is scheduled to be cut, and is not in a state where automatic cutting can be performed as it is.
This means that the transfer is performed in a manner that is more consistent with the actual arrangement of the exposed portions A of the strip material C than when using the accident counter 24, which will be described later, so that fine adjustments are kept to a minimum and semi-automatic operation can be performed easily and quickly. It is something. However, if neither the first detection unit 10 nor the second detection unit 11 is able to detect the margin area B during the above cycle, that is, if the arrangement of the exposed area A is severely disordered, the margin area detection signal E ₁ , E ₂ is not served together,
The positioning counter 23 is not started, and when the accident counter 24 counts a predetermined number, the main control circuit 20 issues a stop command signal to the pulse motor control circuit 15, and the strip material C is fed by the length (Lo) of the standard strip D. Stop at the point where the
9 will issue an alarm and wait for operator intervention. In the above description, the alarm device 19 may be any appropriate means such as a lamp display, but the concept is broad enough to include a case where a determination is made only by a simple stopping operation.

Above, we have explained embodiments that embody the details shown in Figs. 1 to 4 and add additional functions, but the most basic method is to set a predetermined interval (Lo-l) in the traveling direction of the strip material. A control circuit that performs a series of operations such as advancing and stopping the strip material, cutting it at the margin, or not cutting it and issuing an alarm depending on the detection result. As specifically shown in FIG. 7, the arrangement of the repeated exposed portions of the strip-shaped material is determined by using a cutting device equipped with In the case of good alignment in which the blank area one frame or several frames after the frame is both detected, (Q) the first detection unit detects the blank area corresponding to the next cutting position, but the blank area located a distance l from it is detected. The blank area after one or several frames is not detected. If the arrangement is defective or unknown, the blank area corresponding to the next cutting position will not be detected by the (R) traveling device, but in that case, the second detection unit can detect the blank area. If the sequence is incorrect or unknown,
(S) The first detection section is divided into four cases: a case where the margin corresponding to the next cutting position cannot be detected, and the second detection section is also unable to detect the margin. The cutting operation is automatically performed only in case (P), but the second and third
In the cases of (Q) and (R), there is a question about the arrangement of the exposed part, so an alarm is issued to have the operator inspect it without cutting, and in the case of the fourth (S), the arrangement is seriously confused. This is a case where it is thought that the material will not be cut and an alarm will be issued, which is the same as (Q) and (R), but in that case, the feeding amount of the strip material cannot be based on the time when the margin is detected by the detection mechanism. , it is sufficient to set the fixed length Lo at the beginning. If we diagram the relationship between (P), (Q), (R), and (S), we get
It will look like Figure 6. In particular, FIG. 5 schematically shows the traveling state of the strip material C in the case (P) above where automatic cutting is performed.

(Effects of the Invention) As is clear from the above explanation, according to the present invention, dangerous erroneous cutting in areas other than the margins can be prevented, and even when the arrangement is incomplete, the cutting can be performed according to the degree of confusion. This system feeds the strip material appropriately and enables efficient manual cutting even when an operator intervenes due to an alarm. Cutting marks are pre-applied to each piece of the exposed section, which was previously done. It is possible to provide a safe and efficient cutting device for strip-shaped materials having repeated exposed portions without going through such inefficient processes, and this is a great contribution to the industry.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway plan view showing the overall configuration, FIG. 2 is a partially cutaway front view, FIG. 3 is a time chart of the counter section, and FIG. The figure is a flowchart of the main operations, FIG. 5 is an explanatory diagram showing the running state of the strip material, and FIG. 6 is the feeding and cutting of the strip material according to the detection results of the first and second detection units, FIG. 7 is an explanatory diagram showing the case classification of the alarm operation. FIG. 7 is an explanatory diagram showing the relationship between the alignment of each exposed portion of the strip-shaped material, the detection of a blank area, the feeding and cutting operations of the strip-shaped material, and the alarm operation. 1: Travel device, 6: Cutting mechanism section, 10: First detection section, 11: Second detection section, 12: Light receiving section, 13:
Light receiving section, 14: Control circuit, 19: Alarm device, 20:
Main control circuit, 25: Comparison circuit, 26: AND gate, 26': NOR gate, 33: Differential circuit, 3
4: comparison circuit, 34': comparison circuit, 38: storage register, 40: AND gate.

Claims (1)

[Claims] 1 A traveling device 1 equipped with a guide path for traveling a strip-shaped material in which exposed portions of a certain length of developed negative film or the like are repeatedly displayed with a slight margin between adjacent exposed portions. and of the traveling device 1,
The belt-shaped material attached to the forward position in the running direction of the belt-shaped material along the guide path is The total length l of the cutting mechanism section 6 that cuts into strips, the length of the exposed section for one or several frames, and the same number of blank sections displayed on the strip-shaped material from the cutting mechanism section 6. A first detection unit 10 for detecting a blank area attached to the traveling device 1 at a position on the proximal side with respect to the running direction of the strip material along the guide path, and the length Lo and the length l of the strip body. The first detection unit 10
Furthermore, a second detection unit 11 for detecting a blank area provided on the proximal side with respect to the traveling direction of the band-shaped material.
and a control circuit 14 that integrally controls each of the above-mentioned parts, and the control circuit 14 controls the elapsed time during which the strip material travels a length corresponding to Lo-l after the cutting operation of the cutting mechanism section 6 is completed. If the first detection unit 10 detects a margin within a certain detection time after that, the strip-shaped material is stopped after running for a length corresponding to l from that point, and at this stop, the first detection unit 10 detects a blank space. If a blank area is detected again, a cutting command signal is issued to the cutting mechanism section 6; however, if a blank section is not detected, a signal is issued to the alarm 19; Even if a blank area is not detected, if the second detection unit 11 detects a blank area, from this point on, the strip-shaped material is run for a length corresponding to l, and then stopped, and the alarm 19 is activated. A signal is issued, and if neither the first detection unit 10 nor the second detection unit 11 detects a margin within the detection time, the strip material is run for a length corresponding to the Lo and then stopped, and an alarm is activated. 19. A cutting device for a strip of material having a repeating surface, characterized in that the device is configured to issue a signal at the same time.