KR100382906B1 - A position percepting device of printed materials for digital ink-jet printer - Google Patents

Abstract

The present invention relates to a device for detecting the position of a toner of a digital printing machine, which detects whether a toner is placed on a printing machine, waits for a to-be-printed object at a printing start position, and determines a discharge position of the object after printing is finished. , A conveying part 2 provided along the longitudinal direction of the frame 1, a driving part 3 for driving the conveying part 2, and a printing printing means 4 provided at an intermediate upper portion of the conveying part 2. In the digital printing machine consisting of a transfer table (5) is fixed to the upper part and is mounted on the transfer unit (2) and conveyed to the printing printing means (4) by the drive of the drive unit (3), 4) is formed in front and rear of each of the entry detection sensor 10 and the discharge detection sensor 20 for detecting the entry of the object to be printed by the entry signal of the entry detection sensor 10 of the printing printing means (4) Operation And is one to control the drive motor operation of the drive unit 3 for blood transfer printed matter by the discharge detecting sensor 20.

Description

Print position detection device of digital printing machine {A POSITION PERCEPTING DEVICE OF PRINTED MATERIALS FOR DIGITAL INK-JET PRINTER}

The present invention relates to a device for detecting the position of a print object of a digital printing machine, and a position detecting sensor for sensing the entry and exit states of the object to be printed before and after the printing head of the digital printing machine, respectively, is transferred to the printing head and the printing head by the position detecting sensor. By controlling the drive motor of the means, when the entry of the to-be-printed object is confirmed, the printing head is driven to print on the to-be-printed object, and when the printing is completed, the transfer of the to-be-printed object can be stopped.

In recent years, the printing and printing process of clothing, etc. is essential, and image data input through digital cameras or scanners can be used on a computer to quickly cope with the trend instead of printing by screen printers or roller printers. Digital printing machines that can edit or print newly designed images directly on clothing have been developed and used.

Patent Application No. 2000-23973, which is an applicant of the present invention, which is related to the present invention, discloses a method of transferring an inkjet printer to a flat plate of a predetermined standard in a conventional roll method. It is to be able to print on a to-be-printed object while carrying and carrying various to-be-printed objects.

Briefly described, a conveying portion made of a crawler conveyor installed along the longitudinal direction of the frame, a driving portion consisting of a drive motor and a reducer for driving the conveying portion, and printing printing means installed in the upper middle of the conveying portion. And a transfer table fixed to the upper part and placed on the conveyor belt of the transfer unit and transferred to the printing unit by driving of the drive unit, after editing and producing a design to be printed on a computer with a dedicated program. The printed matter is directly printed on a to-be-printed object such as clothing. The to-be-printed material is printed on the to-be-printed object while being placed on the transporting part, that is, the conveyor belt, while being fixed to the transporting table.

In the above-described application of the present applicant, when the transfer table on which the to-be-printed object enters the printing unit is printed, the printing unit, which has been kept in the driving standby, finds a print position and performs printing on the to-be-fixed stationary table. The printed matter proceeds according to the printing speed, and when the printing of the printed matter is completed, the transfer table exits the printing means. At this time, the control of the printing means and the control of the transfer part detect the position detection signal of the transfer table on which the printed matter is fixed. It is required to be done by.

According to the present invention, the present invention provides a means for precisely detecting the position of the object to be printed on the object, and printing the finished object to be automatically discharged to an appropriate position to stop the means. To provide.

In order to achieve the above object, the present invention provides a conveying unit installed along the longitudinal direction of the frame, a driving unit for driving the conveying unit, printing printing means installed in the upper middle portion of the conveying unit, and a to-be-printed object on the upper part. In the digital printing machine consisting of a transfer table which is placed on the conveying unit and is transferred to the printing printing means by the drive of the drive unit, the entrance detection sensor and discharge which are respectively installed in front and rear of the printing printing means to detect the entry of the printed matter Digital printing machine including a sensing sensor to control the operation of printing printing means by the entry signal of the entry detection sensor and to control the driving motor of the transfer unit for transferring the printed matter by the emission signal detected by the discharge detection sensor. To provide a position detection device for the object.

The sensor allows the installation position to be changed according to the size of the transfer table for fixing the to-be-printed material so that accurate printing and discharge to the proper position can be made according to the size of the to-be-printed object.

1 is an exploded perspective view of a to-be-positioned sensor according to the present invention;

Figure 2 is a perspective view of the combination of the object to be printed position detection apparatus according to the present invention,

3 is a cross-sectional view of the to-be-printed object position detecting apparatus according to the present invention;

4 is a perspective view of a digital printing machine installed with a to-be-positioned sensor according to the present invention;

5 is a diagram illustrating a process in which a to-be-printed material is supplied from a digital printing machine equipped with a to-be-positioned sensor according to the present invention.

* Explanation of symbols for main parts of the drawings

1 frame 2 transfer unit

3: drive unit 4: printing printing means

5: Transfer Table 10: Entry Detection Sensor

12: Base 13: Bracket

14 optical sensor 14a light emitting unit

14b: light receiving unit 16: light blocking bar

17: rotating shaft 20: emission detection sensor

22: base 23: bracket

24: optical sensor 24a: light emitting unit

24b: light receiving portion 26: light blocking rod

27: rotating shaft P: to-be-printed

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a to-be-positioned sensor according to the present invention, FIG. 2 is a combined perspective view of the to-be-positioned device according to the present invention, and FIG. 3 is a cross-sectional view of the to-be-positioned device according to the present invention.

4 is a perspective view of a digital printing machine in which a to-be-positioned device according to the present invention is installed, and FIG. 5 illustrates a process in which a to-be-printed material is supplied from a digital printing machine in which a to-be-positioned device according to the present invention is installed. It is shown.

As shown in the present invention, the conveying part 2 installed along the longitudinal direction of the frame 1, the driving part 3 for driving the conveying part 2, and the upper part of the conveying part 2 are provided. Digital printing machine consisting of printing printing means (4) and a transfer table (5) fixed on the upper part, and placed on the conveying part (2) and conveyed to the printing printing means (4) by driving of the driving part (3). In the, the front and rear of the printing printing means (4) are respectively provided with an entrance detecting sensor 10 and the discharge detecting sensor 20 for detecting the entry of the to-be-printed material, that is, the transfer table (5) Control the operation of the printing printing means (4) by the entry signal of the to-be-detected by the sensor 10, and control the drive motor of the drive unit 3 for the transfer of the to-be-printed by the discharge detection sensor (20). It is to be done.

The sensors 10 and 20 include bases 12 and 22 fixed to the frame 1 of the printing machine, optical sensors 14 and 24 installed on the bases 12 and 22, and the optical sensors 14, 24 is rotated between the light emitting units 14a and 14b and 24a and 24b, and is placed vertically to block the light of the optical sensors 14 and 24. And light blocking bars 16 and 26 which are operated to transmit light to the optical sensors 14 and 24.

The sensors 10 and 20 may be installed to vary the position with respect to the advancing direction of the to-be-printed material, thereby enabling setting to suit the size of the to-be-printed object or the printing position of the to-be-printed object.

The light blocking bars 16 and 26 are formed to have a length from the rotation shafts 17 and 27 to a lower end than the length up to the upper end, so that the light blocking bars 16 and 26 maintain their vertical state by their own weight without receiving external force. 17,27) is operated to open the optical path of the optical sensor (14, 24) by being rotated when the external force, that is, the transfer table in contact with the top.

The optical sensors 14 and 24 are provided with light emitting parts 14a and 24a and light receiving parts 14b and 24b respectively at corresponding positions on both sides thereof, and are rotated by the light blocking bars 16 and 26 provided therebetween. As the light path is opened or closed, it is possible to detect whether the transfer table enters and exits.

The operation of the present invention configured as described above will be described with reference to FIG.

On the frame 1 of the printing machine in FIG. 5, a conveying unit 2 made of a printing unit 4 and a conveyor belt is installed, and the front and rear sides of the printing unit 4, that is, the entry unit and the discharge unit. In the proper position, the to-be-printed sensor 10 and the discharge sensor 20 are installed, respectively.

In the above state, the to-be-printed object P, such as clothing, is fixed to the transfer table 5 and then placed on the transfer unit 2 to perform a print operation. The entrance detection sensor 10 installed at the front transfer unit 2 The optical circuit of the optical sensor 14, which was rotated as the light blocking bar was inclined by the entry of the transfer table 5 by driving of the optical sensor 14, was opened and was projected while the optical circuit of the optical sensor 14 was blocked. In this case, the control circuit of the printer transmits a signal indicating the entry of the to-be-printed object, preferably with a slight time difference based on the entry signal of the to-be-printed object, i.e. After the printing point of P) is transported until it reaches a position coinciding with the printing head, an operation signal is applied to the printing unit 4 to print on the to-be-printed object P. FIG.

The to-be-printed object is to be printed while the transfer table 5 is transported at the printing speed by the conveyor belt of the transfer part 2 while being fixed on the transfer table, and the to-be-printed object discharge sensor 20 is installed on the discharge side. ) Is the discharge of the transfer table 5 while the closed optical path is opened while the tip of the transfer table 5 is in contact, and discharged again when the transfer table 5 passes the discharge detection sensor 20. The optical path of the sensor 20 is cut off, and after the opening of the optical path, the control circuit of the printer sends a stop signal to the driving motor of the driving part 3 for operating the transfer part 2 by the re-blocking signal. It will be controlled to stop the transfer of 5).

As described above, the present invention, by controlling the printing head by detecting the entry position of the to-be-printed object in the entrance detection sensor of the printing machine to transfer the to-be-printed object by the plate transfer method to print on the to-be-printed material, After this, the discharge detection sensor detects this and controls the driving motor driving the transfer unit to automatically move the to-be-printed object to a predetermined position and stops. According to the present invention, the presence or absence of the to-be-printed object and the printing start position Is printed by the entrance sensor, and the printed material is printed by the discharge sensor to determine the discharge position, which makes the printing of the printed material by the digital printing machine more accurate and simple.

Claims (3)

delete A conveying unit provided along the longitudinal direction of the frame, a driving unit for driving the conveying unit, a printing unit installed at an upper portion of the middle of the conveying unit, and a to-be-printed object fixed to the upper part and placed on the conveying unit to drive the driving unit. In the digital printing machine consisting of a transfer table conveyed to the printing means by Installed at the front and rear of the printing means (4), respectively, consisting of an entrance detection sensor 10 and an emission detection sensor 20 for detecting the entry of the printed matter (P) is detected by the entry detection sensor (10) By controlling the operation of the printing printing means (4) by the entry signal, and controlling the drive motor of the drive unit 3 for operating the transfer unit 2 by the discharge signal detected by the discharge sensor 20, the sensor 10 and 20 are an optical sensor 14 comprising a base 12 fixed to a frame 1 of a printing machine, a pair of male and light emitting units provided on the base 12, and an optical sensor 14 The light blocking rod 16 is rotatably installed between the water and the light emitting unit, and blocks the light path in a vertical state, and is rotated when the entry or exit of the printed matter is detected, and is configured to operate to open the light path. Position-detecting device of the digital printing machine. delete