JP2704125B2 - Paper transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet transport device used for a punlitta device and the like, and more particularly to a paper sheet transport device used for a punlitta device and the like which uses cut paper cut to a predetermined size as a printing medium.

[0002]

2. Description of the Related Art FIG. 5 is a schematic view showing an example of a conventional paper sheet transport apparatus.

[0003] Among the Punlitta apparatuses and the like, a conventional paper sheet transporting apparatus such as a Punlitta apparatus which uses so-called cut paper cut to a predetermined size as a printing medium is, as shown in FIG. And a discharge port 22 for discharging the medium after printing is performed by the print head 27. The transported media is
3 is sent to the conveyance path 25 via the conveyance path switching gate 26, and the medium after printing is sent to the conveyance path 24 via the conveyance path switching gate 26 and discharged to the discharge port 22. Outlet 2
It is not possible to inhale the medium from 2. Therefore, 1
After the medium has been sucked through the suction port 21,
In order to inhale the second medium, the rear end of the first medium must pass through the conveyance path switching gate 26 and enter the conveyance path 25.

[0004]

As described above, the conventional paper sheet transport apparatus has a suction port for sucking a medium before printing and a discharge port for discharging the medium after printing, respectively. When two media are to be continuously sucked in, the rear end of the first media passes through the transport path switching gate and enters the transport path where the print head is located. There is a problem in that the second medium cannot be sucked unless it is inserted, and therefore, it has a disadvantage that it takes a long time for continuous printing processing.

[0005]

According to a first aspect of the present invention, there is provided a paper sheet transport apparatus, comprising: two suction and discharge ports; first and second transport paths provided at each of the two suction and discharge ports; And a transport path switching gate provided at the junction of the second transport path, a third transport path provided after the transport path switching gate, and a print head provided in the third transport path, Provided in each of the first and second transport paths a switching transport unit that can transport the print medium by switching in both directions of the suction side and the discharge side ,
A sensor is provided on the suction / discharge port side of the switching conveyance section, and the switching is performed.
An abutment plate is provided on the side of the transfer path switching gate of the transfer section, and
When inhaling a print medium, the sensor
A state in which conveyance of the print medium is prevented when the leading edge is detected
Operate the abutment plate that is
When the print medium is ejected,
When a sensor detects the rear end of the print medium, the print medium
The abutment plate, which is in a state that enables the transport of the body,
Operable to prevent the subsequent conveyance of the print medium , and in particular, two medium guides provided to face each other and through which the print medium passes, and one medium of the medium guide A first drive roller provided at an end of the guide on the suction / discharge port side, a second drive roller provided at an end of the one medium guide on the side of the conveyance path switching gate, and facing the first drive roller. Driven roller, a first swing arm that holds and rotates the first driven roller, and a first actuator that drives the rotation of the first swing arm And a second driven roller provided facing the second driving roller, and a second swing arm that holds the second driven roller and makes contact with the second driving roller at a constant pressure. The first drive roller and the A sensor provided between one driven roller and the second driving roller and the second driven roller, and a butting plate which is provided adjacent to the conveyance path switching gate side of the sensor and performs a vertical movement; A second actuator that drives the up-and-down movement of the abutment plate according to a signal from the sensor, and adjusts the shape of the upper part of the first swing arm to the suction / discharge port side of the two medium guides. A switching conveyance section is provided in which a portion projecting between the two medium guides is formed substantially perpendicular to the two medium guides, and the conveyance path switching gate side is formed into a slope or a gentle curved surface.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view showing an embodiment of the present invention, FIG. 2 is a front view showing details of the switching transport section in the embodiment of FIG. 1, and FIG. 3 shows the suction operation of the switching transport section in FIG. FIG. 4 is a front view showing the discharging operation of the switching conveyance unit in FIG.

In this embodiment, as shown in FIG. 1, two suction / discharge ports 1 and 2; transport paths 3 and 4 provided in each of the suction / discharge ports 1 and 2; , A third conveyance path 5 provided after the conveyance path switching gate 6, and a print head 7 provided in the conveyance path 5. The first transport path 3 and the second transport path 4 are provided with switching transport sections 20a and 20b capable of switching the transport direction of the print medium in both forward and reverse directions.

As shown in FIG. 2, the switching conveyance sections 20a and 20b are provided to face each other, and two medium guides 17 and 18 through which a print medium passes are provided therebetween.
A drive roller 8a provided at an end of the medium guide 18 on the side of the suction / discharge port 1 or 2, a drive roller 8b provided at an end of the medium guide 18 on the side of the conveyance path switching gate 6, and a drive roller 8a. And a swing arm 11 for holding the driven roller 9 and rotating.
And an actuator 13 for driving the rotational movement of the swing arm 11, a driven roller 10 provided opposite to the driving roller 8b, and holding the driven roller 10 to contact the driving roller 8b with a constant pressure. Swing arm 12 is provided. Further, between the driving roller 8 a and the driven roller 9 and between the driving roller 8 b and the driven roller 10, a sensor 14 that operates when a print medium is conveyed between the medium guides 17 and 18,
An abutment plate 15 that moves up and down by the operation 4 is provided, and the up and down movement of the abutment plate 15 is driven by an actuator 16 that operates by a signal from the sensor 14. The upper part of the swing arm 11 has a shape in which a portion protruding between the medium guides 17 and 18 is formed substantially perpendicular to the medium guides 17 and 18 on the side of the suction and discharge ports 1 or 2. The print medium conveyed from the printer 2 is stopped. Also,
The transport path switching gate 6 has a slope or a gently curved surface, and is configured to introduce the print medium transported through the transport path switching gate 6 between the medium guides 17 and 18.

Next, the operation of the switching transport unit configured as described above when sucking and discharging the print medium will be described.
Description will be made with reference to FIGS. 3 and 4, respectively.

When the printing medium is sucked, the printing medium (medium) 19 is conveyed from the suction or discharge port 1 or 2 to between the medium guides 17 and 18 as shown in FIG. At this time, the driven roller 9 is in contact with the driving roller 8a, so that the upper part of the swing arm 11 is
7 and 18, the vertical portion of which projects the medium 19. Therefore, the sensor 14 is in a light transmitting state, and the abutment plate 15 is
And 18 are inserted.

Subsequently, when a command is sent from the control system and the actuator 13 operates, the driven roller 9 and the swing arm 11 descend as shown in FIG. Conveyed.

When the leading end of the medium 19 reaches the position of the sensor 14, as shown in FIG. 3C, the sensor 14 is shielded from light, and the actuator operates to pull up the butting plate 15. At this time, the driven roller 9 comes into contact with the driving roller 8a, and conveys the medium 19.

The medium 19 that has passed the position of the abutment plate 15
Is transported toward the transport path switching gate 6 by the driving roller 8b and the driven roller 10, as shown in FIG.

When the print medium is discharged, as shown in FIG. 4A, the medium 19 is sent from the conveying path switching gate 6 to the position of the driving roller 8b and the driven roller 9, so that the driving roller 19 is driven. 8 b and the driven roller 9 convey it toward the sensor 14. At this time, the butting plate 15 has been pulled up.

Subsequently, when the medium 19 is transported, FIG.
As shown in (b), the medium 19 passes through the sensor 14,
The sheet is nipped between the driving roller 8a and the driven roller 9 and is conveyed toward the suction / discharge port 1 or 2.

When the rear end of the medium 19 passes through the sensor 14, the abutment plate 15 is lowered and inserted between the medium guides 17 and 18, as shown in FIG. As a result, even if the next medium 19 is transported, it is blocked by the abutment plate 15.

As described above, by providing the switching transport portion capable of transporting the medium 19 in both the suction and discharge directions, for example, the medium 19 is sucked from the suction and discharge port 2 immediately after the medium 19 is sucked from the suction and discharge port 1 and the standby state is established. It is possible to keep it.

[0019]

As described above, the paper sheet transport device of the present invention comprises two suction / discharge ports, first and second transport paths provided at each of the two suction / discharge ports, And a transport path switching gate provided at the junction of the second transport path, a third transport path provided after the transport path switching gate, a print head provided in the third transport path, Each of the transport paths is provided with a switching transport unit capable of transporting the print medium by switching between the suction side and the discharge side, so that the print medium can be simultaneously sucked in from the two suction / discharge ports to perform continuous printing. This has the effect of making it possible to reduce the time required for printing processing.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.

FIG. 2 is a front view showing details of a switching conveyance unit in the embodiment of FIG. 1;

FIG. 3 is a front view showing a suction operation of a switching conveyance unit in FIG. 2;

FIG. 4 is a front view illustrating a discharging operation of the switching transport unit in FIG. 2;

FIG. 5 is a schematic diagram illustrating an example of a conventional paper sheet transport device.

[Explanation of symbols]

 1.2 Inlet / outlet port 3, 4, 5, 23, 24, 25 Transport path 6.26 Transport switching gate 7.27 Print head 8a, 8b Driving roller 9.1 Driven roller 11.12 Swing arm 13.16 Actuator 14 Sensor 15 abutment plate 17/18 medium guide 19 medium 20a / 20b switching / conveying unit 21 suction port 22 discharge port

Claims (2)

(57) [Claims] 1. A two-way inlet / outlet port, first and second transport paths provided at each of the two inlet / outlet ports, and a transport path provided at a junction of the first and second transport paths. A switching gate, a third transport path provided after the transport path switching gate, and a print head provided in the third transport path, a print medium in each of the first and second transport paths. A switching transport unit that can switch and transport in both the suction side and the discharge side is provided , and a sensor is installed on the suction and discharge port side of the switching transport unit.
Abutment plate on the transfer path switching gate side of the switching transfer section.
When the print medium is inhaled, the sensor is
When the leading end of the printing medium is detected, the conveyance of the printing medium is performed.
Operate the butting plate in the blocking state
The printing medium can be transported and the printing medium is discharged.
When the sensor has detected the rear end of the print medium
Before the print media can be transported.
Activate the butting plate to prevent the subsequent transport of print media
Paper sheet conveying apparatus characterized by that. And a first drive roller provided at an end of one of the medium guides on the suction / discharge port side. A second drive roller provided at an end of the one medium guide on the side of the transport path switching gate, a first driven roller provided opposite to the first drive roller, and the first driven roller A first swing arm that holds the roller and performs a rotating motion, a first actuator that drives the rotating motion of the first swing arm, and a second actuator that is provided to face the second driving roller. Driven roller, a second swing arm that holds the second driven roller and makes contact with the second driving roller at a constant pressure, the first driving roller and the first driven roller, A second drive roller and said second slave A sensor provided between the moving roller and
Abutting plate that is provided adjacent to the transport path switching gate side of the sensor and performs up and down movement, and a second actuator that drives up and down movement of the abutting plate by a signal from the sensor, The shape of the upper part of the first swing arm is such that a portion projecting between the two medium guides on the suction / discharge port side is formed substantially perpendicular to the two medium guides, and the conveyance path switching gate side 2. The sheet transport apparatus according to claim 1, further comprising a switching transport unit having a shape formed as a slope or a gentle curved surface.