JPS6351280A - Paper collating device - Google Patents

Abstract

PURPOSE:To obtain the compact device by arranging a paper discharging roller, driving means thereof, cam wheel, driving means thereof, supporting part for the paper discharge roller shaft and cam wheel shaft, and a means which detects a recording material and operates a paper discharge roller driving means, onto a lower part transport plate. CONSTITUTION:The upper and lower tray pins 9A are held in separated state by the upper half and lower half of the peripheral surface, and a tray inlet part 70 is held therebetween. A Geneva type cam wheel 16 which can shift the tray pin 9A through the turn, driving means, actuator 4 as a recording member insertion detecting means and a sheet detecting means 25 are formed integrally through a lower part transport plate 3, and the unit is constituted. Therefore, the main part is assembled in compact form onto the lower part transport plate 3, and assembly and disassembly are facilitated, and maintenance and repair are exceedingly facilitated, and the dimension of the whole device can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a combining device, and particularly to an extremely compact and miniaturized combining device.

[Prior Art] In collating devices that have been generally used as recording material post-processing devices in copying machines and the like, transport roller pairs consisting of a paper ejection roller and a driven roller are often provided in correspondence with individual tray pins. However, in addition, individual trays are movably supported via tray pins, and tray entrances are sequentially formed between adjacent trays that are kept in an accumulated state by a tray support member, and at the same time, the paper ejection roller There is a system in which a conveying device including the above is linked to guide the recording materials to the corresponding position of the tray entrance, and the recording materials are discharged one after another onto the tray.

However, although each of the conventional collating devices described above has its own characteristics, the more user-friendly the device is equipped with a post-processing device, the more complex the structure and the higher the cost of maintenance. However, as light copying machines have been developed one after another in recent years, there has been a strong demand for a simple and compact collation device that can accommodate these machines.

[Problems to be Solved by the Invention] The purpose of the present invention is to focus on the above-mentioned conventional problems, and in order to solve them, to provide a system that is simple in structure and assembly, and has a sufficient variety of functions. It is an object of the present invention to provide a combining device that is compact and particularly suitable for use in small-sized copying machines.

Means for Solving Problem E] In order to achieve the above object, the present invention provides an upper guide plate and a lower conveyance plate for guiding the recording material to the paper ejection roller, and an upper guide plate and a lower conveyance plate for guiding the recording material to the paper ejection roller, and an upper guide plate and a lower conveyance plate for guiding the recording material to the paper ejecting roller, and an upper guide plate and a lower conveyance plate for guiding the recording material to the paper ejection roller, and a The tray is equipped with support pins and is held in an accumulated state, a vertical groove that holds the support pins, and a vertical groove that rotates around a horizontal axis that can be moved up and down, so that the support pins can be gripped by the grip grooves and moved up and down. A collating machine comprising a cam wheel that can move up and down the entrance part of the tray by supporting support pins above and below the circumferential surface of the cam wheel, and a drive means for the cam wheel and a drive means for the discharge roller. The apparatus includes a paper ejection roller and its driving means, a cam wheel and its driving means, a paper ejection roller shaft and a support part for the cam axle,
The present invention is characterized in that the lower conveyance plate is provided with means for detecting that the recording material is guided between the upper guide plate and the lower conveyance plate and actuating the paper discharge roller driving means.

[Function] According to the T-coupling device of the present invention, the upper and lower tray pins are held separated by the upper and lower parts of the circumferential surface, thereby maintaining the tray entrance part between them, and the tray pin is rotated by the rotation thereof. A Geneva-type cam wheel that can be rotated vertically and its driving means, a paper ejection roller and its driving means, and a recording material insertion detection means are integrated via a lower conveyance plate to form a unit. This not only makes it easy to assemble and disassemble as the main parts are compactly integrated into the lower transport plate, but it is also extremely convenient for maintenance and repairs, and greatly contributes to the miniaturization of the entire device.

Moreover, since the unit configured in this way can be further connected to an upper guide plate equipped with a pinch roller to achieve integration, no matter where the tray opening is located in the vertical direction due to the drive of the cam wheel, The entire unit can automatically change its position accordingly.

[Example 1] Hereinafter, an example of the present invention will be described in detail and specifically based on the drawings.

1 to 3 show an embodiment of the present invention. In FIG. 1, 1 is a sheet insertion section, and the sheet insertion section 1 is formed by an upper guide plate 2 and a lower conveyance plate 3. In this example, the upper guide plate 2 is connected to its support pin (not shown). It is shown rotated around and flipped up to the top.

Here, 4 is a sheet detection actuator with a detection piece 4A protruding from the lower conveyance plate 3, and when the detection piece 4A is tilted when inserting a sheet, an optical sensor to be described later is activated during sheet insertion. It is detected that

5 is a paper discharge roller, 5A is its roller shaft, 5B is a belt tension section provided on the roller shaft 5A, and a sheet feeding drive device (described in detail later) 6 provided on the lower surface side of the lower conveyance plate 3.
The sheet discharge roller 5 can be rotated by a belt 7 stretched between the paper discharge roller 5 and the pinch roller 8 to sandwich the sheet and discharge the sheet to the tray 9 side. Here, 10
11 is the upper cover, 11 is the side plate frame, 12 is the tray holder, 13 is the case body, 14 is the control plate for the collating device,
Furthermore, in FIG. 2, 15 is a sheet support attached to a guide frame (not shown), and a sheet support 15 is attached to a guide frame (not shown).
This prevents the sheet discharged to the tray 9 side from being rolled up along the roller shaft 5A. Reference numeral 16 is a Geneva type cam wheel which will be described in detail later.

Next, the main unit components mentioned above will be described with reference to FIG. First, the upper guide plate 2 has its support pin 2A
The lower guide frame 20 is formed into a substantially U-shape by
In normal use, the sheet insertion section 1 is formed between the sheet insertion section 1 and the lower conveyance plate 3 by the abutment of the support section 2B. 21 is an upper guide frame, and the upper guide frame 21 and the lower guide frame 20 are fixed with screws 22 to form a guide frame;
A pair of pinch rollers 8 are fixed to the upper guide frame 21 at two locations on the lower surface thereof via spring members 8A, and a static elimination brush member 23 is further fixed to the front surface of the upper guide frame 21.

24 is a guide pin fixed to both ends of the lower conveyance plate 3, and 25 is an actuator 4 and its return coil spring 4B.
This is an inserted sheet detection device that supports the sheet insertion detection sensor assembly 26 and is fixedly attached to the lower surface side of the lower conveyance plate 3. In addition, the side plates 3 on both sides of the lower conveyance plate 3
0A and 30B have paper ejection rollers! A pivot hole 31 for rotatably supporting the FIiISA is provided, and a sliding groove is provided in the side plate 3OA on the left in this figure for slidably engaging a gear assembly 33 combined with a feed motor 32. 3
4, and a tray motor 35 for driving a tray moving cam wheel 1δ is fixed to the right side plate 30B via a motor plate 35A.

Now, here, the roller shaft 5A is formed hollow, and a cam main drive shaft 36 concentric with it is fitted rotatably to the roller shaft 5A. The roller shaft 5A is inserted into the pivot hole 20 of the lower guide frame 20.
A and a pivot hole 31 provided in the lower conveyor plate 3 are made to pass through the pivot hole 31, and bushes 36 are provided at both ends of the pivot hole 31.
The cam wheels 18A and 16B are fixed via the cam wheels 18A and 16B.

In this figure, 37 is a tension spring for biasing the gear assembly 33 diagonally to the right in this figure, and the pulley 38 and roller shaft belt are driven via the gear assembly 33 by the spring force of this spring 37. The tension is maintained in the belt 7 which is stretched between the tension member 5B and the belt 7 to prevent the belt from slipping more than necessary.

39 is a toothed pulley fixed to the shaft of the tray motor 35;
40 is a timing belt stretched between the toothed pulley 18C coaxial with the cam wheel 16B and the toothed pulley 39;
Reference numeral 41 is attached to the belt cover thereof, and 42 is attached to the left side plate 30A of the lower conveyor @3.The cam switch 16D is installed coaxially with the left cam wheel 16A. It is a stop cam member.

The components described above with respect to FIG. 3 are assembled into an integral unit by being fixed or connected to each other. The unit assembled in this way can be removed or installed as a complete unit from the main body, except for electrical connections, which is a great advantage from the standpoint of maintenance, inspection, and repair. I can say that. Note that, hereinafter, this unit will be referred to as a tray sorting and conveying unit, or a conveying unit for short.

FIG. 4 shows the overall assembly configuration. Here, 50 is a transport unit. Reference numeral 51 denotes a main body casing, and support members 52 and 53 for swingably holding the transport unit 50 are provided on the left and right side walls 5]A and 51B, and support members 52 and 53 are provided at opposing positions of the members 52 and 53. Vertical pin grooves 54 that keep the tray pins 9A of the trays 9 slidable. A sliding groove 55 in which the side portion of the upper guide frame 21 of the transport unit 50 is slidably held and a horizontal guide groove 56 in which the guide pin 24 of the transport unit 50 is slidably held are formed.

That is, the sliding grooves 5 are inserted into both sides of the upper guide frame 21 from above.
5 and further insert the guide pin 24 into the horizontal guide groove 56, so that the conveying unit 50 can be attached to the main body casing 51 in a swingable manner. 57
is a groove cover. Furthermore, the tray receiver 12 is connected to the casing 5
1 side walls 51A and 51B. 57 is a vertical static elimination brush, and this static elimination brush 57 allows the tray 9 to be removed.
The tray 9 can further discharge the static electricity that is generated when the recording materials are accumulated, and for this reason, if the tray 9 itself is made of metal, it is desirable that the surface be insulated.

58A and 58B are printed circuit boards, 59 and 60 are rear and front covers, 81 is a control panel,
62 is a code insertion section.

Next, the drive section of the cam wheel 16 will be described based on FIG. The tray motor 35 is fixed to the side plate 30B of the lower conveyance plate 3 via a motor plate 35A, and has a toothed pulley 39 attached to the shaft of the motor 35 and a toothed pulley 16c attached to the cam wheel drive shaft 36. The cam wheel 16B is rotationally driven by the timing belt 40 stretched between the two. Reference numeral 66 indicates a pin feed groove carved in the cam wheel 18B, and the pin feed groove 66 is located at a position corresponding to the cam wheel 16A provided at the shaft end of the other drive shaft 36, as shown in FIG. is formed.

Now, in the state shown in this figure, if the cam wheel 16B is rotated clockwise by the motor 35, it will come in contact with the pin feed groove 66 located at the lower side on the peripheral surface of the vicinity thereof. The tray pin 9A that is in the tray is in a state where it fits in, and the cam wheel 16B is supported vertically in the sliding groove 55, so while the pin 9A is being introduced into the pin feeding groove 66,
Lift the pin 9A upward along the pin groove 54,
When the pin feeding groove 66 has been guided upward, the tray pin 9A is sent out from the pin feeding groove 66 to the circumferential surface C of the cam wheel 16B and held in that state, and the lower half of the circumferential surface of the cam wheel 16B is now lifted up. By bringing it into contact with the pin 9A located below the pin, the tray insertion lower 0 can be moved between the tray 9 and the tray 9 which is one stage lower than the illustrated state.

In this way, it is possible to shift the lower trays 0 one after another, and although explanations using illustrations are omitted, when moving the tray 9 from the top to the bottom, the cam wheel 16B is used.
In either case, the tray 9 can be moved one step up or down by rotating the cam wheel 18B half a turn.

Here, a part of the side plate of the upper guide frame 21 is cut and bent to form a drawing board 21S. A photointerrupter 71 is attached as an optical sensor. Therefore, the home position of the tray 9 can be detected by blocking the light with the light groove 71A of the photo interrupter 71 using the light drawing board 21S. It is also possible to detect the position of each individual tray by arranging them in the longitudinal direction of the groove 55.

Next, the sheet feeding mechanism for paper ejection will be described in detail with reference to FIG. Here, 33 is the left side plate 30 of the lower conveyance plate 3
a gear assembly slidably held in A;
The guide hook 33B is slidably engaged with the sliding groove 34 (see FIG. 3) of the side plate 30A. Further, a gear 33A driven by the feed motor 32 is disposed inside the gear assembly case 33C, and the gear train 3
The roller shaft 5A can be appropriately decelerated and rotationally driven by the belt 7 via the belt 3A. Further, a tension spring 37 is stretched between the case 33c and the artificial side end plate of the lower conveyance plate 3, and the spring force of this spring 37 allows the belt 7 to maintain an appropriate tension and prevents unreasonable loads. is prevented from being applied to the feed motor 32.

Further, 18D is a starting/stopping cam member provided coaxially with the cam wheel 16A, as described above, and has two notches 16K on its circumference, so that the cam wheel 16A rotates to pin the pin. 9
When A is moved completely 8 times, it can be stopped as shown in Fig. 3.

Next, the operation when the recording material is discharged to the tray will be explained with reference to FIG.

Now, when a recording material (not shown) is guided from the right side of the figure as shown by the arrow, the recording material is detected by the detection piece of the actuator 4 as it passes between the upper guide plate 2 and the lower conveyance plate 3. 4A
Tilt it to the state shown by the two-dot chain line. Then, by removing the front arm 4B of the actuator 4 from the optical path of the photointerrupter 26A disposed in the sheet detection device 25, it is detected that the recording material has been inserted, and the feed motor 32 (sixth By driving the roller shaft 5A (see figure), the roller shaft 5A can be rotated, the recording material can be pinched between it and the pinch roller 8, and the recording material can be discharged from the tray lower 0 to a desired tray 9.

Next, when the recording material is ejected, the detection piece 4A of the actuator 4 stands up due to the spring force of the spring 4B mentioned above.
By returning to the state shown, the photointerrupter 26
Sheet feeding is stopped by a signal from A. Note that the operation when selecting the tray has been previously explained with reference to FIGS. 5 and 6, so a description thereof will be omitted.

Regarding the upper cover lO, when it is flipped up as shown in Fig. 1, the interlock cam IOB provided in relation to the rotation axis 10A shown in Fig. 4 is activated by the interlock switch. IOc can be activated to bring the entire collating device into an interlock state.

Furthermore, as can be seen from FIG. 4 and FIG.
and 57 removes the static electricity.

[Effects of the Invention] As described above, according to the present invention, the paper ejection roller and its driving means, the cam wheel for tray population retention and its driving means, and the supporting portions of the paper ejection roller shaft and the cam axle are provided. and a means for detecting when the recording material is guided onto the lower conveyance plate and operating the paper ejection roller driving means are all integrated and arranged on the lower conveyance plate. It contributes to the miniaturization and compactness of the entire collating device, and is not only extremely easy to handle for maintenance, inspection, and repair, but also allows for easy implementation of partial changes to parts or mechanisms. Furthermore, the unit configuration combined with the upper guide plate allows the unit to perform a natural response operation regardless of the vertical position of the cam wheel.

[Brief explanation of the drawing]

1 and 2 are perspective views showing an example of the configuration of the collating device of the present invention as seen from the recording material insertion side and the tray side, respectively, and FIG. 3 is an exploded view of an example of the configuration of the conveyance unit according to the present invention. FIG. 4 is an exploded perspective view of the main parts of the neck of the present invention, FIG. 5 is a configuration diagram of its cam wheel drive device, and FIG. 6 is a diagram of its paper ejection roller drive device. FIG. 7 is a block diagram of the recording material insertion section of the collating device of the present invention. DESCRIPTION OF SYMBOLS 1... Sheet insertion part, 2... Upper guide plate, 3... Lower conveyance plate, 4... Actuator, 5... Paper ejection roller, 5A... Roller shaft, 5B...・Belsit bow long frame part, 6... Sheet feed drive device, 7... Belt, 8... Pinch roller, 9... Tray, 9A... Tray pin, 10... Upper cover, 12...・Tray holder, 13... Case body, 14... Control panel, 15... Seat support, 16, 16A, i6B... Cam car, 18C, 39
... Tooth type pulley, 16D... Start/stop cam member, 20... Lower guide frame, 21... Upper guide frame, 23, 57... Static elimination brush, 24... Guide pin, 25. ...Inserted sheet detection device, 30A, 30B...Side plate, 32...Feed motor, 33...Gear assembly, 33A...Gear train, 34...Sliding groove, 35...Tray motor , 36... Cam wheel drive shaft, 37... Spring, 38... Pulley, 40... Timing belt, 42... Cam switch, 50... Conveyance unit, 51... Main body casing, 52) 53...Supporting member, 54...Pin groove, 55...Sliding groove, 56...Horizontal guide groove, 66...Pin feeding groove, 70...Tray entrance, 26A, 71 ···Photo-interrupter.

Claims (1)

[Scope of Claims] 1) An upper guide plate and a lower conveyance plate for guiding the recording material to the paper ejection roller, and support pins at both ends of the entrance section side for receiving the recording material, and the recording material is held in an accumulated state. a tray that holds the support pin; a vertical groove that holds the support pin; and a vertical groove that holds the support pin; A collating device comprising a cam wheel that can move up and down the entrance of the tray by supporting a pin, a driving means for the cam wheel, and a driving means for the sheet ejecting roller. a drive means, the cam wheel and its drive means, a support part for the paper ejection roller shaft and the cam axle, and detecting that the recording material is guided between the upper guide plate and the lower conveyance plate. and means for operating the paper ejection roller drive means is disposed on the lower conveyance plate. 2) The collating device according to claim 1, wherein the upper guide plate has a pinch roller that contacts the paper ejection roller.