JPS6038298B2 - paper handling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper processing device for a line printer that automatically loads continuous folding paper and performs a folding operation of the paper according to the amount of paper feeding within the paper processing device.

Mechanically, this type of paper processing device has a paper guide section 6 for guiding the paper 4 ejected from the line printer 1 to the feed roller 7 of the paper processing device 5, as shown in FIG. , a feed roller 7 for feeding the paper 4, and a swing roller 7 for folding the paper 4 onto a pedestal 9.
It is comprised of a fin 8, a pedestal 9 for accumulating the paper 4, a paper detection micro switch 10 for detecting the start point of paper processing operation of the paper processing device 5, and the like.

Also, control block. As shown in Fig. 2, there is a paper length setting rotary switch 11 for setting the length of paper processed by the paper processing device, and a feed pulse that simulates the paper feed amount of the paper processing device. Feed to occur
Feed pulse disk 14 attached to roller 7
and a feed pulse detection means 15, an up/down counter 17 for generating a feed pulse that matches the paper feed amount of the paper processing device, an OR gate 18 and an AND gate 16, and a paper detection means for detecting the starting edge of the paper 4. A cue counter 20 and a face matching circuit 21 control the process from when the starting edge of the paper 4 reaches the tip of the swing fin 8 from when the starting edge of the paper 4 is detected by the micro switch 10'. The paper length counter 24 is used to count the paper feed amount of the paper processing device after reaching the paper length, and the swing fin 8 is The apparatus includes a paper length matching circuit 25 for detecting the operation timing of the fins, a swing fin control circuit 26 for driving the swing fins 8, and the like. Note that the tractor 3 of the line printer is provided with a line pulse disk 12 for generating line pulses that match the paper feed amount of the line printer. - Pulses are sent to the paper handling device via a logical interface. Next, paper starting edge processing in a conventional paper processing apparatus will be described in detail with reference to FIGS. 1 and 2.

The paper processing device 5 processes the paper 4 by operating the swing fin 8 according to the length of the paper 4 to be processed and the amount of paper feeding within the paper processing device. For this purpose, it is necessary that the amount of sheet feeding in the sheet processing process at the tip of the swing fin 8 and the driving timing of the swing fin 8 are synchronized. However, a paper detection micro switch for detecting the starting point of the paper processing operation of the paper processing device 5 is provided at the position of the feed roller 7. The reason for this is, for example, to obtain a highly reliable and inexpensive paper processing operation start point detection means. Therefore, in the subordinate paper processing device, after detecting the starting edge of the paper 4 with the paper detection micro switch 10,
After the starting end of the paper 4 was drawn out to the tip of the swing fin 8, control of the swing fin 8 was started. The period during which the starting edge of the paper 4 reaches the tip of the swing fin 8 from the position of the paper detection micro switch 11 is called cueing control, and the amount of paper line alignment during this period is called the cueing amount. In this cue control, the cue counter 20 and paper length counter 24 are reset when paper 4 is not detected by paper detection microswitch 10, and when paper 4 is detected, the 1' set state is canceled. , feed pulse (AND gate 1) that matches the paper feed amount of the paper processing device
6) is counted by the cue counter 20.

The cueing reference circuit 21 stores a fixed cueing amount based on the mechanical dimensions of the paper processing device, and when the stored cueing amount is compared with the count value of the face cuing counter 20, the cueing comparison circuit 21 The output of AND gate 2 is generated.
2 is opened, AND gate 19 is closed, and cue control is completed. Note that when the AND gate 22 is opened, the paper length counter 2 is set by the feed pulse (output of the AND gate 16) that matches the paper feed amount of the paper processing device.
Counting of 4 is started, and control of the swing fin 8 is started. As explained above, the conventional sheet processing apparatus has a fixed cueing amount calculated from the mechanical dimensions of the apparatus itself.

However, in many cases, there are many different paper lengths that can be processed by a paper processing device. Originally, the amount of protrusion depends on the mechanical dimensions of the paper processing device, the rotational speed of the feed roller 7, the operating speed of the swing fin 8, etc., as well as the type (length) of paper that can be processed by the paper processing device. It was not previously known that they were related. For this reason, paper processing for some paper lengths is stable for all types of paper that can be processed by paper processing bag counterfeiting, but there is a drawback that paper processing for all paper lengths becomes unstable. Ta. An object of the present invention is to solve the above-mentioned drawbacks by controlling the amount of cueing according to the length of paper processed by a paper processing device, and to provide paper that can perform good paper processing for all paper lengths that can be processed. A processing device is provided.

According to the present invention, continuous folding paper is automatically loaded;
In a paper processing device of a line printer that performs a paper folding operation by operating a swing fin in accordance with the paper feed amount in the paper processing device, a means for controlling the amount of cueing according to the length of paper to be processed is provided. By including this, a paper processing device that performs good paper processing can be obtained.

An embodiment of the present invention will be described with reference to the drawings. Mechanically, the paper processing device 5 of the present invention has a paper guide section 6 for guiding the paper 4 ejected from the line printer 1 to the feed roller 7 of the paper processing device 5, as shown in FIG. , a feed roller 7 for feeding the paper 4, a swing fin 8 for folding the paper 4 onto a pedestal 9, a pedestal 9 for accumulating the paper 4, and a paper processing operation of the paper processing device 5. It is composed of a paper detection microswitch 10 and the like for detecting the starting point of the paper. Electrically, as shown in Fig. 3, there is a paper length setting rotary switch 11 for setting the paper length of the paper to be processed, and a feed pulse that generates a feed pulse similar to the paper feed amount of the paper processing device. The feed pulse roller attached to the feed roller 7
A disk 14 and a feed pulse detection means 15, an up/down counter 17 for generating a feed pulse that matches the paper feed amount of the paper processing device, a cue counter 20 for counting the cue amount of the paper, A face-out amount comparison circuit 21 that controls the amount of paper start-up according to the paper length of the paper to be processed by comparing the counted value of the face-out counter 20 and the set value of the paper length setting rotary switch 11; The paper length counter 24 is used to count the paper feed amount of the paper processing device after the completion of paper processing, and the swing fin is set by comparing the counted value of the paper length counter 24 with the setting value of the paper length setting rotary switch 11. 8, a swing fin control circuit 26 for driving the swing fins 8, and the like. In addition,
The tractor 3 of the line printer is provided with a line pulse disk 12 for generating line pulses that match the paper feed amount of the line printer, and the line pulses are detected by a line pulse detection means 13. be done. Next, an overview of the operation of the paper processing device 5 will be described. The paper 4 is transported by the tractor 3 of the line printer, printed at the position of the type drum 2, and sent to the paper processing device 6.

In the paper processing device 5, the paper 4 is naturally fallen by the paper guide section 6, is automatically bitten by the feed roller 7, and the swing fin 8 swings from side to side according to the paper length and paper feed amount, so that the paper 4 is placed on the cradle 9. are folded and stored correctly. The pedestal 9 automatically descends according to the amount of accumulated paper 4, but since it is not directly relevant to this application, its explanation will be omitted. Further, the paper processing device 5 detects that the paper 4 is bitten by the feed roller 7, and the paper detection micro switch 1 is activated.
Paper processing starts from the time when 0 is activated. in this case,
The maximum paper feed speed of a line printer is on the order of 100 inches/second with a printing speed on the order of 100 mm/minute.

On the other hand, the effective paper feeding speed of the paper processing device is set to about 50 inches/second. The reason for setting the effective paper feeding speed of this paper processing device is that due to the nature of the paper, if the paper is fed at a speed of approximately 50 inches/sand or higher, good folding will not be possible, and furthermore, the line printer will continuously operate at the maximum speed ( Skip operations, etc.) are rare, so even if the paper processing device's effective paper feed speed is slower than the line printer's maximum paper feed speed, in actual use (for example, a line printer prints with a single line feed). (The paper feed speed when performing the operation is about 10 inches/second), if the response is sufficient, then by lowering the effective paper feed speed of the paper processing device, a more stable paper processing operation and an inexpensive paper processing device can be obtained. It's for a reason. However, since the paper processing device's effective paper feeding speed is slower than the line printer's maximum paper feeding speed, the line pulse synchronized with the line printer's paper feeding speed does not necessarily match the paper processing device's paper feeding speed. is not synchronized.

However, since the paper processing apparatus folds the paper by operating the swing fins according to the paper transport speed within the paper processing apparatus, it is necessary to detect some kind of pulse signal or the like that is synchronized with the paper transport speed within the paper processing apparatus. For this reason, the paper processing device first uses a logical interface provided between the line printer 1 and the paper processing device 5 to supply line pulses that match the paper feed amount of the line printer 1. .As a means for generating line pulses that match the paper feed amount of the line printer 1,
This can be realized by a method such as installing a line pulse disk 12 on the drive shaft of the tractor 3 of the line printer and detecting a large number of equally spaced slits provided on the disk surface using the line pulse detecting means 13. Next, the paper processing device 5
Detects a feed pulse that simulates the paper feed amount.
A feed pulse disk 14 is provided on the drive shaft of the feed roller 7 of the paper processing layer 5, and a feed pulse detection means 15 detects a large number of equally spaced slits provided on the disk surface. This feed pulse is a feed pulse that simulates the paper feed amount of the paper processing device 5 since the feed roller 7 is constantly rotating. Next, the up/down counter 17 outputs feed pulses that simulate the paper feed amount of the paper processing device 5 by the number of line pulses that match the paper feed amount of the line printer 1. Incrementally counts the line pulses that match the paper feed amount and
Only when the AND gate 16 is opened while the count value of the down counter 17 is not zero, the feed pulse detecting means 5 performs decrement counting using a feed pulse that simulates the paper feed amount of the paper processing device 5. The decrement count signal of this counter 17 becomes a feed pulse that matches the paper feed amount of the paper processing device. In the paper processing device 5, the paper length counter 24 counts the feed pulses that match the amount of paper feeding within the device itself.

The counted value of the paper length counter 24 represents the paper feed amount of the paper processing device 5, and is supplied to the paper length matching circuit 25. The paper length matching circuit 25 stops matching the counted value with the setting value of the paper length setting rotary switch 11 for calculating the paper length of the paper 4 to be processed by the paper processing device 6. The output of the paper length matching circuit 25 is ``When the swing fin control circuit 26 operates, the paper length counter 24 is reset, and the control moves to the step of the swing fin 8. Swing fin 8 by command from verification circuit 25
Move one step. Note that although the drive means for the swing fin 8 is not specifically shown, it can be realized by a very general means such as an electromagnetic clutch, so its explanation will be omitted. Further, the swing fin 8 operates to form one cycle of four steps: left side → center → right side → center. Next, in the paper processing apparatus of the present invention, means for controlling the amount of face exposure according to the length of the paper to be processed will be explained in detail with reference to FIG.

Face counter 2 lines - connected so that the line pulse from the pulse detection means 13 is supplied to the increment counting terminal via the AND gate 19, and the output signal of the paper detection microswitch 10 is supplied to the reset terminal The output is connected to the cue competition circuit 21. The cue comparison circuit 21 is a circuit that compares the output of the paper length setting rotary switch 11 and the output of the face cue counter 20.

The output of the cue matching circuit 21 is an AND gate! 9 and further connected to AND gate 22. Next, the operation of the paper processing apparatus of the present invention will be explained in detail.

First, line pulses matching the paper feed amount of the line printer are supplied to the up/down counter 17.
The up/down counter 17 counts the feed pulses in increments. When an output is generated at any of the output terminals of the counter 7, the feed pulse that has passed through the AND gate 16 via the OR gate 18 becomes a feed' pulse that matches the paper feed amount of the paper processing device 5, and the up. The contents of the down counter 17 are decremented. On the other hand, the paper 4 sent out from the line printer is sent to the paper processing device 5, but since the paper processing device 5 is of an automatic loading type, the starting edge of the paper 4 is inserted through the paper detection microswitch 01 at the position of the feed roller 7. To detect.

The output signal of this paper detection microswitch 10 is used as the starting point for paper processing.
7, it is supplied to the reset terminals of the cue counter 20 and paper length counter 24 circuits. Each circuit is reset when the paper 4 is not detected, and each circuit starts its control operation from the time when the female end of the paper 4 is detected.
After the start of the paper 4 is detected, the feed pulse via the AND gate 16 that matches the paper feed amount of the paper processing device 5 increments the cue counter 20 and is determined by the cue comparison circuit 21. It is detected whether or not the predetermined amount of cueing has been reached, and when the predetermined amount of cueing is reached, the output of the cue matching circuit 21 is generated, and the AND gate 19
is closed and the AND gate 22 is opened. Thereafter, the paper length counter 24 starts controlling the swing fin 8 by incrementally counting the number of feed fins that match the paper feed amount of the paper processing device 5. In addition, according to the paper length of the paper 4 to be processed, the present invention determines how far away from the fold of the continuous folding paper 4 the layer is.

The means for changing whether or not the fin 8 is operated is performed by changing the reference value of the L-heading reference circuit 21 based on the predetermined value of the paper length setting rotary switch 11 which sets the paper length to be processed. When the cueing is completed, the face matching circuit 21 generates an output signal and opens the AND gate 22. The paper length counter 24 increments the feed pulse according to the paper feed amount of the paper processing device 5. The paper length matching circuit matches the counted value of the paper length counter 24 and the set value of the paper length setting rotary switch 11, and swings when the match is successful. Swing by the fin control circuit 26. A signal for moving the fin 8 by one step is output. Note that there is a means for generating a line pulse when the paper feed amount of the line printer matches the paper feed amount, and a feed device that generates a line pulse when the paper feed amount of the paper processing device 5 matches the paper feed amount.

In the means for generating pulses, the number of line pulses and feed pulses for a constant paper feed amount of the line printer 1 and paper processing device 5 is the same or an integral multiple,
In this explanation, the line and
The numbers of pulses and feed pulses are assumed to be the same in the description. As described above, the present invention has the effect of providing a paper processing apparatus that performs a good folding operation by including means for controlling the amount of protrusion according to the length of the paper to be processed.

[Brief explanation of drawings]

FIG. 1 is a diagram in which a line printer and a paper processing device are connected, FIG. 2 is a block diagram of a conventional paper processing device, and FIG. 3 is a block diagram of a paper processing device of the present invention. 1... line printer, 2... type drum, 3... tractor, 4... paper, . 5... Paper processing device, 6. ．． ．． ．． ．．・Paper guide section, 7...Feed roller, 8...
... Swing fin, 9 ... cradle, 10 ... micro switch for paper detection, 11 ... rotary switch for setting paper length, 12 ... line pulse disk, 13...Line pulse detection means, 14.
...Feed pulse disk, 15...
...Feed pulse detection means, 16. ．． ．． ...and■
・Gate, 17...Up/down counter, 18...
...or gate, 19...and gate, 20...
...Cueing counter, 21...Cueing verification circuit, 22...And gate, 23...Ote...
Gate, 24...Paper length counter, 25...
-Paper length matching circuit, 26...Swing fin control circuit. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. The length of the paper to be processed in the paper processing device of a line printer that performs the paper folding operation by attaching continuous folding paper and operating the swing fin according to the amount of paper feeding in the paper processing device. 1. A paper processing device comprising: means for controlling a cue amount according to the amount of cueing.