JPH0266030A - Separately sheet feeding method and device thereof - Google Patents

Abstract

PURPOSE:To exactly separate envelopes in a separately feeding equipment for loaded envelopes by intermittently turning a feeding rollers. CONSTITUTION:The turning moment of an envelope feeding motor 16 is transmitted to a pulley 17, a belt 18, an electro-magnetic clutch 19 and a belt 23 to a roller shaft 10. The moment is further transmitted to a roller shaft 11 to turn feeding rollers 8 and 9. At the same time a separating roller 27 is turned by the belt 31. When the electro-magnetic clutch 19 is in the on position, output pulleys 22 and 30 are connected to each other to simultaneously turn the feeding rollers 8 and 9 and the separating roller 27. When the clutch 19 is in the off position, the separating roller 27 only is turned. By changing the position of the electro-magnetic clutch 19 at the specified turn-on or the turn-off timing, the feeding rollers 8 and 9 are driven intermittently. In such constitution envelope separation may be executed exactly.

Description

[Detailed description of the invention] [Industrial application field]

The present invention provides a separation paper feeding method in which a large number of stacked envelopes, papers, etc. are fed from the lowest or highest one using a feeding roller, separated by a separation roller, and fed one by one (or one sheet). and its equipment.

[Conventional technology]

In this type of conventional paper feeding method, for example, a separating band is brought into pressure contact with a separating roller, and the feeding roller is continuously rotated at a constant speed to feed the envelope or paper between the separating roller and the separating pad. The paper was separated and fed one by one.

[Problem to be solved by the invention]

However, because the feeding roller is continuously rotated, two or more envelopes or sheets of paper are often sent between the separation roller and the separation pad without shifting back and forth, and they may jam or become stuck between the separation rollers and the separation pad. There were problems such as incomplete separation from the separation pad and double feeding. An object of the present invention is to shift the envelope or paper back and forth before being sent to the separation roller, so that the separation by the separation roller can be performed accurately.

[Means to solve the problem]

Therefore, in the method according to the present invention, the above-mentioned problems are solved by rotating the feeding roller intermittently. In the device according to the invention for carrying out this method, an electromagnetic clutch is provided that can switch between a first state in which rotation is transmitted to both the feeding roller and the separation roller and a second state in which rotation is transmitted only to the separation roller. The electromagnetic clutch is connected to the motor via the electromagnetic clutch, and includes a control circuit that controls switching of the electromagnetic clutch between the first state and the second state at predetermined intervals. When this device is used for a sealing machine, the separation roller,
It is preferable that the feeding roller, the electromagnetic clutch, and the motor are mounted on a frame that is detachably attached to the outside of the sealing machine.

[For production]

When the feeding roller is rotated intermittently, the envelopes or sheets are shifted back and forth between each other due to repeated rotation and stopping, and the envelopes or sheets are sent to the separation roller in the shifted state, so that the separation performance by the separation roller is improved. According to the device of the present invention, by turning on and off the electromagnetic clutch, there is a first state in which the separation roller and the feeding roller are simultaneously rotated, and a second state in which the feeding roller is stopped and only the separation roller is rotated. It is therefore possible to switch automatically to the feed roller and thus also to rotate the feed roller intermittently.

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state in which an automatic envelope feeding device 1 to which the present invention is applied is attached to the outside of a sealing machine 2. As shown in FIG. Envelope automatic feeding device 1
The whole is a separate unit independent of the sealing machine 2, and is detachably attached to the sealing machine 2 by joining the front plate 4 of the frame 3 to the outer surface of the housing 5 of the sealing machine 2. When attached in this manner, the connection detection switch 6 is turned on, and this is detected. In the upper part of the frame 3, an envelope mounting table 7 on which a large number of envelopes E are placed is installed with an inclination downward from the front. The free roller 12.13 is the roller shaft 14.15
These rollers protrude from the upper surface of the envelope mounting table 7. The front feeding roller 8 controls the rotation of the envelope feeding motor 16 installed at the lower part of the frame 3 through the input end pulley of the motor 16, including the boot 7, the bell 8, and the input end pulley of the electromagnetic clutch 19. 20, it is transmitted via a first output pulley 22 that shares a pulley shaft 21 with this pulley, a belt 23, and a boolean IJ 24 fixed to the roller shaft IO. The rotation of the rear feeding roller 9 is further transmitted from the pulley 24 via the heald 25 and the boot IJ 26 fixed to the roller shaft 11. Further, a separating roller 27 is inserted into the envelope insertion opening 2 between the front plate 4 and the housing 5 of the sealing machine 2 in front of the front feeding roller 9.
The roller shaft 29 is mounted near the roller shaft 8 . Rotation from the motor 16 is transmitted to the separation roller 27 via a second output pulley 30 of the electromagnetic clutch 19, a heald 31, and a pulley 32 fixed to the roller shaft 29'. A separation pad 33 made of rubber or the like is pressed against the separation roller 27 from above. When the electromagnetic clutch 19 is on, the input pulley 20
and the first and second re-output side pulleys 22.30, and the rotation from the motor 16 is transferred to the front and rear feeding rollers 8.30.
9 and separation roller 27 at the same time. When off, input side boolean 1J20 and second pulley 30
The input pulley 20 and the first pulley 22
The rotation from the motor 16 is transmitted only to the separation roller 27. Note that the rotational speed of the separation roller 27 is faster than that of the front and rear feeding rollers 8 and 9 (for example, 3
double). On the other hand, there is an envelope insertion slot 29 in the housing 5 of the sealing machine 2.
A conveying roller 34 and a pressing roller 35, which sandwich the envelope E inserted from there and convey it to the sealing section, are connected to the roller shaft 3, respectively.
6.37. The conveyance roller 34 is
The rotation of a transport motor 38 installed in the housing 5 is transmitted via a pulley 39, a belt 40, and a pulley 41. Further, the pressing roller 35 has a gear fixed to its roller shaft 37 (not shown) and a conveying roller 34.
Since the gears fixed to the roller shaft 36 are meshed with each other, they rotate at the same time as the conveyance roller 34. On the envelope mounting table 7 on the envelope automatic feeding device 1 side, there is an envelope detection sensor (
A jam detection sensor (in the figure, a light-emitting element and a light-receiving element) is disposed at the position where the separation roller 27 and the separation pad 33 come into pressure contact to detect whether or not the envelope E is jammed. A photo sensor (optical sensor) 43 is disposed facing each other. On the other hand, on the sealing machine 2 side, an envelope insertion detection sensor (optical sensor in the figure) 44 is arranged in the envelope insertion opening 29, and a conveyance detection sensor (in the figure A microswitch) 45 is arranged. FIG. 2 is a brochure diagram of the electrical configuration of the feeding motor 16.
, the electromagnetic flanch 19 and the transport motor 38 are connected to the connection detection switch 6, the envelope detection sensor 42, and the jam detection sensor 4.
3. Controlled by a one-chip microcomputer 46 in accordance with signals from the insertion detection sensor 44 and the conveyance detection sensor 45. The microcomputer 46 is a CPU4
7, ROM 48, RAM 49, first timer 50, second timer 51, and I10 boat 52. Electromagnetic clutch 19
, the feeding motor 16, and the transport motor 38 are driven by respective drivers 53, 54, 55. Next, the operation of feeding the envelope E is shown in Figures 3 to 5.
This will be explained with reference to the flowchart shown in the figure. In FIG. 3, at step 100 the start switch (
(not shown) is turned on, various devices are initialized in step 101, and then it is determined in step 102 whether or not the connection detection switch 6 is turned on. It is determined whether or not it is attached. If the answer is Y (YES), it is determined in step 103 whether or not the envelope detection sensor 42 is on, that is, the envelope i
! It is determined whether or not there is an envelope E on the placing table 7, and if it is Y, then in step 104, it is determined whether the insertion detection sensor 44 is on or not, that is, whether or not the envelope E is inserted into the envelope insertion slot 29. If the determination is N (No), then it is determined whether or not the jam detection sensor 105 is on. If N here, the electromagnetic clutch 19 is turned on in step 106, and the transport motor 38 is turned on in step 107.
is turned on, and in step 108, the feeding motor 16 is turned on. When the iIt magnetic mouth crunch 19 feed motor 16 is turned on in this way, the rotation of the feed motor 16 is transmitted to the front and rear feed rollers 8 and 9 and the separation roller 27, and the envelopes E on the envelope mounting table 7 are The lowest one is fed forward by the front and rear feeding rollers 8°9. However, when the result in step 105 is Y, that is, when the envelope E has already come between the separation roller 27 and the separation pad 33, the process does not go through step 106.
In other words, step 10 with the electromagnetic clutch 19 turned off
7. Proceed to 10B. Therefore, in this case, in order to prevent double feeding, the rotation of the feeding motor 16 is not transmitted to the front and rear feeding rollers 8.9, but only to the separation roller 27. The envelope E between the separation pad 33 and the separation roller 27 is sent into the sealing machine 2 from the envelope insertion slot 29, but the envelope E on the envelope mounting table 7 is not sent out by the front and rear feeding rollers 8 and 9. . Next, proceeding from step 108 to step 119, the first
After setting, for example, 4.2 seconds to the timer 50, it is determined in step 110 whether or not the set time has elapsed;
If the result is N, it is determined in step 111 whether the jam detection sensor 43 is on or not, and the process continues in step 1 until the result is Y.
10 and 111 are repeated. Steps like this 106.108.109.110
, 111 is for feeding the envelope E to a position where it can be detected by the jam detection sensor 43 within 4.2 seconds. When the result is Y in step 111, the electromagnetic clutch 19 is turned off in step 112, and the front and rear feeding rollers 8, 9
is stopped +h (to prevent double feeding), and the envelope E is fed only by the separation roller 27. If the result in step 110 is Y, it is assumed that the envelope is jammed, and the system is restarted in step 113. Next, while feeding the envelope E only by the separation roller 27, the process proceeds from step 112 to step 114 in FIG.
After setting the timer 51 to 0.2 seconds, step 115
Determine whether or not the insertion detection sensor 44 is turned on with N.
If so, it is determined in step 116 whether or not the second timer 51 has elapsed for 0.2 seconds, and the process continues in step 11 until it reaches Y.
5, repeat the determination in step 116. When 0.2 seconds have elapsed and the result is Y in step 116, 4.1 seconds is entered in the first timer 50 in step 117, and the first timer is set in step 118.
It is determined whether the timer 50 has elapsed for 4.1 seconds, and if N, it is determined in step 119 whether the insertion detection sensor 44 is on. If N here, 50 milliseconds is set in the second timer 51 in step 120. Then, in step 121, the electromagnetic clutch 19 is turned on. Therefore, when the jam detection sensor 43 is turned on in step 111, the envelope E is separated by 0.2
During this period, the first timer 50 is set to 4.1 seconds, and the second timer 51 is set to 50 milliseconds. In this case, a check period of 4.1 seconds is provided by the first timer 50, during which it is checked whether the envelope E has been fed to the position of the insertion detection sensor 44. Next, the process proceeds from step 121 to step 122, where it is determined whether the insertion detection sensor 44 is on, and in the case of N, it is determined whether or not the second timer 51 has elapsed for 50 milliseconds. Steps 122 and 123 until
The determination is repeated, and when the result is Y, the process proceeds to step 124 and the TL ill clutch 19 is turned off. Next, in step 125, 40 milliseconds is set in the second timer 51, and then in step 126, it is determined whether or not the insertion detection sensor 44 is on, and if N, the second timer 51 is set in step 127.
It is determined whether 40 milliseconds have elapsed or not, and the determinations in steps 126 and 127 are repeated until the result is Y. When the result is Y, the process returns to step 118 and the same operation as described above is repeated. Therefore, when the TL magnetic clutch 19 is turned on in step 121, in addition to the separating roller 27, the front and rear feeding rollers 8,
9 also rotates, and the envelope E is rotated 50 by these three rollers.
After being conveyed for milliseconds, the separation roller 27 continues to convey 4
The paper is conveyed for 0 milliseconds, and such conveyance for 50 milliseconds by the three rollers and conveyance for 40 milliseconds by only the separating roller 27 are alternately repeated during the above-mentioned 4.1 second check period. Therefore, although the separation roller 27 continues to rotate, the front and rear feeding rollers 8 and 9 rotate intermittently for 50 milliseconds at intervals of 40 milliseconds. For this reason, the envelopes E are gradually shifted back and forth as shown in FIG. 1, and this shift is gradually increased before being fed to the separation roller 27, thereby improving the separation performance. By the way, in step 104 in FIG.
4 has already been turned on, the envelope E is already in the envelope insertion slot 29, and there is no need to feed the envelope by the front and rear feeding rollers 8.9. After the conveyance motor 38 is turned on, there is a delay of 0.3 seconds in step 130, and then the feeding motor 16 is turned on in step 131, and the envelope E is sent only by the separation roller 27. In FIG. 4, if 4.1 seconds elapse before the insertion detection sensor 44 is turned on and the status 1118 becomes Y, it is assumed that the envelope E has jammed, and a system stomp is performed in step 128. 4. Step 115 within 1 seconds
Or, if the insertion detection sensor 44 is turned on at step 119 or 122, the process proceeds to step 132 in FIG.
After setting the first timer 50 to 2.1 seconds in step 134, it is determined whether or not the first timer 50 has elapsed for 2.1 seconds. The next steps 135 to 145 are executed. That is, after the second timer 51 is set to 300 milliseconds in step 135, it is determined in step 136 whether or not the conveyance detection sensor 45 is turned on.If N, the second timer 51 is set to 300 milliseconds in step 137. Determine whether the elapsed time has elapsed or not, and step 136, 13 until Y is reached.
Repeat step 7, and when the result is Y, step. 138 to turn on the electromagnetic clutch 19. Therefore, the envelope E that has entered the envelope insertion opening 29 is first conveyed for 300 milliseconds only by the separation roller 27. Next, in step 139, the second timer 51 is set to 50 milliseconds, and in step 140, it is determined whether the conveyance detection sensor 45 is turned on. If N, the second timer 51 is set to 50 milliseconds in step 141. It is determined whether the elapsed time has elapsed or not, and the determinations in steps 140 and 141 are repeated until Y is reached. When Y is reached, the electromagnetic flange 19 is turned off in step 142. Therefore, the envelope E is then conveyed for 50 milliseconds by the separating roller 27 and the front and rear feeding rollers 8, 9. Next, in step 143, the second timer 51 is set to 40 milliseconds, and in step 144, it is determined whether the conveyance detection sensor 45 is turned on. If N, the second timer 51 is set to 40 milliseconds in step 145. It is determined whether or not the elapsed time has elapsed, and the determinations in steps 144 and 145 are repeated until Y is reached, and Y is reached.
When this happens, the process returns to step 134. Therefore, the envelope E that has entered the envelope feeding port 29 is transported only by the separating roller 27 for 300 milliseconds during the 2.1 second check period from the position of the insertion detection sensor 44 to the transport detection sensor 45. Conveyance by the separation roller 27 and the front and rear feeding rollers 8.9 for 50 milliseconds and conveyance by only the separation roller 27 for 40 milliseconds are repeated. If 2.1 seconds elapse before the conveyance detection sensor 45 is turned on and the result is Y in step 134, the system is stopped in step 146 assuming that the envelope E has jammed. If the conveyance detection sensor 45 is turned on in step 136, 140, or 144 within 2.1 seconds, the feeding motor 147 is turned off in step 147, and the electromagnetic clutch 19 is also turned off in step 14B. In step 149, the sealing section of the sealing machine 2 is operated to seal the envelope E. Then, step 102 in FIG.
The process returns to , and the same operation as above is repeated. When the envelope detection sensor 42 is off in step 103 of FIG.
Ends at 51. Further, when the connection detection switch 6 is off in step 102, the automatic envelope feeder l is turned off by the sealing machine 2.
Since the envelope is not attached to the sealing machine 2, the mode is set to manual feeding mode in step 152, and the envelope is manually inserted into the sealing machine 2 through the envelope insertion opening 29. Although the above embodiment has been described using an example in which envelopes are fed to a sealing machine, the present invention can also be applied to feeding ordinary paper other than envelopes. Alternatively, the envelopes or sheets may be fed starting from the top instead of starting from the bottom.

【Effect of the invention】

As described above, according to the method of the present invention, since the feeding roller is rotated intermittently, the envelopes or sheets are shifted back and forth between each other due to the repeated rotation and stopping, and are sent to the separating roller in the shifted state. The separation roller improves separation performance and prevents double feeding. Further, according to the apparatus of the present invention, by simply turning on and off the electromagnetic clutch, the separation roller and the feeding roller are simultaneously rotated in a first state, and the feeding roller is stopped and only the separation roller is rotated in a second state. The feed roller can therefore also be rotated intermittently.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to an automatic envelope feeding device, and FIG. 1 is a schematic sectional view of an automatic envelope feeding device and a sealing machine.
FIG. 2 is a Pronk diagram of the electrical configuration, and FIGS. 3 to 5 are flowcharts. E...Envelope, 1...Envelope automatic feeder, 2...Sealing machine, 3...Frame, 8
．． 9... Feeding roller, 16... Feeding motor, 19... Electromagnetic flange, 27...
...Separation roller.

Claims (1)

[Scope of Claims] 1. In a paper separation method in which stacked envelopes, sheets, etc. are fed from the lowest or highest one by a feeding roller and separated by a separating roller, the feeding roller is intermittently moved. A separate paper feeding method characterized by rotation. 2. In a separation paper feeding device that feeds stacked envelopes or papers, etc. from the lowest or highest one by a feeding roller and separates them by a separation roller, the feeding roller and separation roller are both rotated. The motor is connected to the motor via an electromagnetic clutch capable of switching between a first state in which rotation is transmitted and a second state in which rotation is transmitted only to the separation roller, and the electromagnetic clutch is switched between the first state and the second state at required intervals. 1. A separation sheet feeding device comprising: a control circuit for controlling switching between two states; 3. The paper separation and feeding device according to claim 2, wherein the separation roller, feeding roller, electromagnetic clutch, and motor are mounted on a frame that is detachably attached to the outside of the sealing machine.