JPH0529762U - Oblique insertion prevention device for printing cards for printing machines - Google Patents

Abstract

(57) [Summary] [Purpose] Printing is performed by feeding the card only when the printing card is inserted straight into the printing machine. [Structure] On the left and right sides of the insertion path of the print card PC, there are formed substantially V-shaped tip portions 21 of actuators 21 and 21 for turning on / off the card detection switches 3A and 3B.
T is projected, and these left and right actuators 21, 21
When the front end portions 21T and 21T are simultaneously pushed by the print card PC and both switches 3A and 3B are turned on, the card feed motor 8M is rotated to feed the card.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, the dot printer performs various types of printing such as date and time on the inserted printing card (printing paper), and also various types of die plate printing by the rotary die plate together. It is used in the technical field of stamp-type printing machines that can perform printing. Specifically, it is a printing card for printing machines designed to prevent the printing card from being inserted into the printing machine at an angle. Oblique insertion prevention device.

[0002]

[Prior Art]

 The conventional stamp-type printing machine is designed so that when the printing card is inserted to the printing position in the insertion path, the switch is turned on and printing is performed by the printer and die plate, but recently developed by the applicant. When a sensor detects the insertion of a printing card, the automatic card feeding type printing machine (stamp) turns on the switch, the card feeding motor is activated, and the feeding roller rotates to put the inserted printing card inside the machine. In addition to pulling in and feeding, the feeding is stopped by the numerical control during printing by the printer, and the card feeding motor is rotated in reverse at the set position to eject the printed card toward the insertion slot and the rotary type The mechanism is such that the die plate rotates and the die card is printed on the print card.

In the automatic card feeding printer configured as described above, when the print card is bent and inserted into the insertion port, the feeding roller conveys the print card while bending the print card at an angle. Do not insert the print card because printing on the plate may be performed diagonally on the print card, or in some cases, the print card that is conveyed while curving at an angle may get caught in the conveyance path and cause a paper jam. However, it was very troublesome to always pay attention to inserting the print card straight.

Therefore, sensors such as reflective sensors are provided on both the left and right sides of the print card insertion slot, and only when both of these sensors detect the print card, that is, the print card is inserted straight into the insertion slot. A diagonal insertion prevention device was conceived that was configured so that the card feed motor switch was turned on only at certain times, and that card feeding was not performed when a printed card was inserted at an angle.

[0005]

[Problems to be solved by the device]

 However, in the case of the above-mentioned diagonal insertion prevention device, since there is a rotary shaft to which the transport roller is attached, this rotary shaft interferes and the left and right sensors are provided close to the contact points of the upper and lower transport rollers. Since it cannot be installed, it must be placed at a position slightly displaced to the insertion port side from the transport roller that is not affected by the rotation axis.Therefore, if the printed card is inserted with a slight angle bend, the tip of the card may Since the left and right sensors detect the card and turn on the card feed motor switch before reaching the contact point of the transport roller, the transport roller rotates and the print card is transported as it is in an oblique state. was there.

Therefore, the technical problem of the present invention is that the card feeding is not performed when the printing card is bent at a slight angle and is inserted, and the card feeding motor is rotated to perform the card feeding only when the printing card is inserted straight. is there.

[0007]

[Means for Solving the Problems]

 Means taken in the present invention to solve the above technical problems are as follows. A sensor is installed in the insertion path of the print card. When this sensor detects the print card, the switch turns on and the card feed motor operates, and the feed roller rotates to feed the inserted print card toward the print section. In the printing machine configured as

(1) Two switches for detecting the above-mentioned print card are provided on both left and right sides of the insertion path, and the card feed motor is operated only when both of these switches are turned on. The tips of the on / off actuators of both switches should be projected by the elastic action of the springs to the left and right on both sides of the insertion path close to the roller shaft to which the transport roller is attached.

(2) The tips of the actuators protruding on both the left and right sides on the insertion path close to the roller shaft are bent and formed in a substantially V shape.

[0010]

[Action]

 The above means operate as follows. The element described in (1) above is because the tip of each actuator that turns on and off the left and right switches is projected to both the left and right sides on the insertion path near the roller shaft to which the transport roller is attached. When the tip of the print card is inserted straight into the contact point of the upper and lower transport rollers, the left and right actuators are pushed together to turn on both the left and right switches, but temporarily insert the print card by bending it. In this case, only one actuator is pushed and the other actuator cannot be pushed, and even if an attempt is made to insert a print card as it is, the upper and lower transport rollers block this insertion and bend. Be sure to straighten the print card when inserting it, because you cannot press the other actuator to turn on both switches unless you straighten the print card. It does not forced to insert the print card as it allows for straight to perform on the card surface printing is straight transported by the transport low la.

The element of (2) above is that the tip of the actuator is bent in a substantially V shape so that the tip of the card does not get caught on the tip of the actuator when the print card is inserted or ejected. , The printing card can be transported smoothly, and the tip of the inserted printing card can be made into a V-shape if the apex of the tip that is formed in a substantially V shape is positioned exactly on the vertical line of the rotation axis. The actuator is gradually rotated by pushing the inclined surface of the formed actuator tip, and the card tip pushes its apex to switch on, and at the same time, the card tip is inserted into the contact point of the upper and lower transport rollers, so it was switched on. It enables straight card feeding without bending the printed card later. As described above, the technical problems described above can be solved by the above means, and the problems of the conventional technology can be solved.

[0012]

【Example】

 Hereinafter, a preferred embodiment of the above-described device for preventing the oblique insertion of the printing card for the printing machine according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view for explaining the internal structure of a printing machine (stamp) which implements a diagonal insertion prevention device for a printing card according to the present invention. The entire printing machine 1 includes a dot printer, a transfer device, etc. described later. It is composed of an upper base 1A that is built in and a lower base 1B that also incorporates a platen, a pressing roller shaft, etc., which will be described later, and these convey the print card PC (see FIG. 8) between the upper base 1A and the lower base 1B. The printing card PC is inserted into the conveying path from the guide table 2 connected to the front surface of the lower table 1B as shown by the arrow, and is sent back to the guide table 2 again after printing. . 1T is an outer case of the printer 1.

Further, in FIGS. 1 and 2, 3A and 3B are first and second switches for card detection (for carrying start) mounted on a mounting plate 23 in the guide board 2, respectively. The card feed motor 8M (stepping motor) rotates so as to start the pulling conveyance of the print card PC only when both switches 3A and 3B are turned on. And a switch for counting the feed amount, which is attached to the mounting plate 23 together with the second switches 3A and 3B. When the switch 4 is turned on, counting of the card feed amount is started.

Next, 5, 6, and 7 are card feed roller shafts which are installed on the upper surface side of the above-mentioned transport passage with a front-rear space therebetween, and the drive pulley 8 of the above-mentioned card feed motor 8M and these. An endless conveyor belt 9 is hung between the interlocking pulleys 5P attached to the roller shafts 5, 6, and 7, and the conveyor rollers 5a attached to the roller shafts 5, 6, and 7 ... The print card PC inserted between the conveyer roller 10a mounted on the driven roller shafts 10, 11, 12 and the conveyer belt 9 arranged above and below the roller shafts 5, 6, 7 is vertically moved. When the drive pulley 8 is rotated counterclockwise in the drawing by the motor 8M, the print card PC is pulled in and conveyed in the direction of the arrow shown in FIG. The drive pulley 8 is rotated clockwise on the drawing. When rotated in the rolling direction, the print card PC is configured to be discharged and conveyed in the opposite direction.

Reference numeral 13 denotes a printer base to which a dot printer 13P is attached, and the printer base is movably mounted on a guide shaft 13G installed on the upper base 1A so as to be orthogonal to the direction in which the print card PC is conveyed. When the printer operating belt 15 is attached and rotated by driving the printer moving motor 15M, the printer base 13 moves and the dot printer 13P moves laterally with respect to the print card PC to which the dot printer 13P has been conveyed. Then, the general print TP such as the date and time shown in FIG. 8 is performed between the printer head 13F and the platen 14, and after printing, the dot printer 13P is set to the home position by the reverse rotation of the moving motor 15M. It is configured to return.

Reference numeral 16 denotes a rotary type die plate having die plate characters (not shown) formed on its peripheral surface. The die plate 16 is installed on the upper base 1A side so as to cross the card transport passage. While rotating by 16M, the die plate characters formed on the peripheral surface are pressed against the upper surface of the printing card PC being conveyed to perform the die plate printing DP as shown in FIG. 8 on the printing card PC. As shown in the figure, the relief surface 16a formed by notching on the peripheral surface is stopped at a position facing the conveying path so that the die plate character does not come into contact with the character card PC being conveyed.

Reference numeral 17 denotes a platen roller for a die plate, which is provided so as to face the bottom surface side of the rotary die plate 16 described above, and the platen roller 17 has a spring plate on the upper surface of a support table 17T attached to the lower table 1B. It is attached in a state of being bulged upward at 17S and is configured to press the upper surface of the conveyed print card PC against the rotary die plate 16 side.

The device for preventing the oblique insertion of the printing card according to the present invention is implemented in the printing machine 1 configured as described above, and its specific configuration will be described in detail with reference to the description of FIG. Is a mounting shaft that is installed between the brackets 20a and 20a provided inside the guide base 2 in parallel with the roller shafts 10 described above. An actuator for turning on / off the freely attached first and second switches 3A, 3B, and 22 is a card feed counting switch 4 similarly attached to the central portion of the attachment shaft 20 so as to be vertically rotatable. The actuator 22 is an actuator for turning on and off, and the actuator 22 is formed to be slightly longer than the left and right actuators 21 and 21. The tip portions 21T, 21T and 22T of the reference numerals 1, 21 and 22 are all bent in a substantially V shape.

Further, the first and second actuators 21 and 21 receive the pulling action of the spring 21S attached to the hook 21b at the bottom as shown in FIG. 2 and FIG. 21 is always held so that its top is just above the vertical lines of the upper and lower roller shafts 5 and 10 and slightly above the insertion path 2a of the guide plate 2, and in this state the root end side The light shielding plate 21a opens the sensor hole 3B1 of each switch 3B (the same structure on the 3A side) in a transparent state, and turns off the left and right card detection first and second switches 3A, 3B.

On the other hand, the central actuator 22 formed to be slightly longer is subjected to the pulling action of the spring 22S attached to the hook 22b at the bottom as shown in FIGS. 2 and 5, and has a tip portion bent into a substantially V shape. 22T is pivotally held in a state of slightly protruding above the insertion passage 2a slightly inside the tip portions 21T of the left and right actuators 21 and 21, and the light-shielding plate 22a on the root end side is provided with the counting switch 4a. The sensor hole 4a is opened in a transparent state and the switch 4 is turned off.

FIG. 7 is a block diagram showing an electrical configuration of a printing machine provided with the above-mentioned device for preventing diagonal insertion of a printing card according to the present invention, in which reference numeral 30 denotes a CPU which is the center of a control unit. Reference numeral 31 denotes a memory unit (ROM) that stores various system programs. The interface circuit 33 connected between the CPU 30 and the memory unit 31 via the bus 32 has the above-mentioned card detection (transportation). (For start) first and second switches 3A, 3B, switch 4 for count start, card feed motor 8M, die plate drive motor 16M, printer 13P and printer movement motor 15M, rotary type A sensor 34 for detecting the home position of the die plate 16 and a clock circuit 6 for transmitting a reference clock signal are connected, and further, the dot printer 13 The print position determining means 35 including a variable resistor and the like for setting the print position of the general print TP by P and the print position of the die plate print DP by the rotary die plate 16 is connected, and the above first The card feed motor 8M cannot rotate unless both the second switches 3A and 3B are turned on.

Since the device for preventing the oblique insertion of the printing card for the printing machine according to the present invention has the above-described structure, when the printing card PC is inserted along the insertion path 2a of the guide base 2, the tip of the card is inserted. In order to press the tip portions 21T and 21T of the actuators 21 and 21 of the first and second count start switches 3A and 3B protruding above the insertion passage 2a, the actuators 21 and 21 have springs 21S as shown in FIG. The light shielding plate 21a cuts off the sensor holes 3B1 (the switch 3A side is omitted) of the switches 3A and 3B by turning clockwise in the drawing against the pulling force, so that the switches 3A and 3B are turned on. The card feeding motor 8M rotates, and card feeding by the transport rollers 5a and 10a is started.

At this time, if the print card PC is bent at an angle and is inserted so that only one of the switches 3A and 3B can be turned on, the card feed motor 8M does not rotate and card feed is not performed. In the present invention, in particular, the substantially V-shaped bent front end portions 21T and 21T of the actuators 21 and 21 have their top portions located exactly on the center lines of the upper and lower roller shafts 5 and 10, so that the difference in the bent state is great. Even if you try to turn on the other switch 3B or 3A that is not turned on by further inserting the inserted print card PC as it is, the contact surfaces of the transport rollers 5a and 10a attached to the upper and lower roller shafts 5 and 10 are inserted into this insertion state. This prevents the card from being conveyed while it is bent at an angle.

Further, in the present invention, since the tip portions 21T and 21T of the actuators 21 and 21 are formed in a substantially V-shape, the tip of the inserted printing card PC is caught on the tip portions 21T and 21T. In addition, there is no problem that the root end of the print card PC that is carried out to the insertion port after printing is caught by these front end portions 21T, 21T, which hinders card feeding, and has a substantially V shape. The bent front end 21T receives the front end of the inserted printing card PC by its inclined surface and gradually descends. When the top is completely pressed into the printing card PC, the switch is turned on. It enables to turn on / off the switch by PC without damaging the end face of the card.

[0025]

[Effect of the device]

 As described above, according to the device for preventing the oblique insertion of the printing card for the printing machine according to the present invention, when the printing card is inserted at an angle, the card is not fed, and the first and the second are inserted straight. Only when both switches are turned on, the printing card is sent and printing is performed, so printing with the dot printer and printing with the die plate can be performed straight at the specified position on the printing card, and it can be bent at an angle. If the paper is inserted by inserting the paper, the conveyance rollers prevent the paper from being inserted unnecessarily, so problems such as diagonal printing due to unreasonable insertion, paper jams, and malfunctions can be solved. It was applied to a stamp-type printing machine that performs printing and printing with a rotary die plate together, and its practical effect is extremely high.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an internal structure of a stamp-type printing machine provided with an oblique insertion preventing device for a printing card according to the present invention.

FIG. 2 is a perspective view showing a main part of the present invention.

FIG. 3 is a side sectional view illustrating the states of a card detection switch and an actuator during normal operation.

FIG. 4 is a side cross-sectional view illustrating operating states of a card detection switch and an actuator when a print card is inserted.

FIG. 5 is a side sectional view illustrating the states of a card feed count switch and an actuator in a normal state.

FIG. 6 is a side sectional view for explaining an operating state of a card feed count switch and an actuator when a print card is inserted.

FIG. 7 is a block diagram illustrating an electrical configuration of a printing machine embodying the present invention.

FIG. 8 is a configuration diagram showing an example of printing on a print card.

[Explanation of symbols]

 1 Printer 2 Guide board 3A, 3B Card detection switch 5,10 Roller shaft 5a, 10a Conveying roller 8M Card feeding motor 21 Actuator 21T Tip portion 21a formed in a substantially V shape 21A Light-shielding plate 21S Spring

Claims (2)

[Scope of utility model registration request] 1. A sensor is provided in an insertion path of a print card,
When this sensor detects a print card, the switch is turned on, the card feed motor is activated, and the feed roller rotates to feed the inserted print card toward the print unit. There are two switches for detecting the print card on both the left and right sides of the insertion passage, and the card feed motor is activated only when these two switches are both turned on. An oblique insertion of a printing card for a printing machine, characterized in that the tip end of the turning-off actuator is projected by the elastic action of a spring to the left and right sides on the insertion passages adjacent to the roller shafts to which the above-mentioned conveying rollers are attached, respectively. Prevention device. 2. The printing machine according to claim 1, wherein the tip end of each actuator protruding on both left and right sides on the insertion path near the roller shaft is bent into a substantially V shape. Oblique insertion prevention device for printing cards.