KR100368053B1 - Jet printer for non-contact - Google Patents

Abstract

The present invention is to adjust the height of the characters printed on the product group to be printed in accordance with the tilt operation of the printhead during the stamp operation, such a non-contact jet printer, the control program to store the control program to perform the stamp operation for a predetermined object to be printed A memory unit having a RAM for storing the ROM and the stamping data, a control unit for performing overall control of the stamping operation, an interface with an external device, a display unit for displaying data, and an angle adjusting unit for adjusting the angle of the print head. A non-contact jet printer which is provided and sprays ink to a predetermined position of the object to be printed moving in a predetermined direction according to the conveying speed of the conveyor, wherein the non-contact jet printer performs a printing operation according to the control operation of the control unit 100. When setting / supplying the valve time of 118 or when the encoder part 104 is mounted The counter time circuit section 106 for applying a pulse value for determining the ink injection timing to the controller 100 using the moving speed of the object to be printed measured from the encoder section 104, and the controller 100 and When the control signal and the valve time signal are received from the counter time circuit unit 106 and any one mode is selected according to the selection of the piezo mode or the solenoid mode, the ink is sprayed through the spray nozzles installed in the print head 118. Meanwhile, an angle adjusting unit 120 formed integrally with the printer head 118 is provided in the mounting housing 117 so as to adjust the inclination of the type printed on the printed object, and the control unit 100 and the logic IC + 5V supplied to the + 12V supplied as the voltage required to drive the encoder 104 and the detector 102, + 24V, 40V DOD used to drive the DOD valve for the header heating heater and 24V of the header controller 116. valve A power supply unit 124 for supplying + 40V required for driving and a + 100V DC voltage supplied to the piezoelectric driving power of the microcoder, and a clock for calculating the date and time when the power supply unit 124 is turned off (110b). It is achieved by being configured to include an auxiliary power supply 114 for supplying an auxiliary power to the unit 112.

Description

Non-contact Jet Printers {JET PRINTER FOR NON-CONTACT}

The present invention relates to a non-contact jet printer, and more particularly, to provide convenience of use according to a self-diagnostic function and a Wyswyg (What You See What You Get) function by using an ink injection system using an electric pulse code. In addition, the present invention relates to a non-contact jet printer to adjust the size of the print head by adjusting the tilt of the printhead.

In general, industrial printers used in industrial sites have predetermined values such as printing position, letters, width, printing direction, printing speed, etc. in a predetermined position such as outer packaging, inner packaging, and zone packaging of various product groups. It is provided to be stamped in a predetermined format such as a product name, current time, serial number, etc., and such an industrial printer generally includes a print head and a control part for controlling the print head in the printing portion of the printed product group to be printed. As such, the product family is provided / installed at a predetermined position on the conveyor which is conveyed at a constant speed.

In addition, the stamping operation for the product group to be printed in a state of being installed on one side of the conveyor as described above includes a contact method in which the head portion directly contacts and stamps the product group to be printed, and a non-contact method in which ink is injected by jetting ink. In this case, the user may select and use any one of a contact type and a non-contact type in consideration of printing items, materials, and economic conditions.

On the other hand, as a stamping method for the product group to be printed by the industrial printer, when a predetermined product line moves at a constant speed on the conveyor, the operator directly stamps a letter or number at a predetermined position on the surface of the product or rolls on a roll corder. The stamping operation is performed.

However, the stamping operation in the industrial field according to the prior art, there is a problem in that the loss of the ink is generated by the evaporation, spillage of the ink during the stamping, and thus there is a problem that can not be clearly printed at the position to be stamped.

In addition, a printer device installed on one side of a production line such as a conveyor is often composed of a printing part and a controller part controlling the same, so that ink must be replaced or when a printer device is installed on another production line. In the case of data stamping, the user cannot check the stamp mode set before printing, for example, printing size, font, etc., for a certain type of stamped text. Therefore, even if it is printed differently from the preset, it is not possible to recognize the error check early, there was another problem that causes economic losses as well as time consumption.

In addition, in general industrial printers, when a nozzle having a constant height of 5 mm on the print head is attached to the print head, for example, the printing height is only 5 mm without changing the print head, thereby increasing the height of the print during printing. There was an inconvenience that could not be adjusted.

Therefore, the present invention uses the ink spraying system using an electrical pulse code to automatically perform a simple stamp content change, a current time stamp, an automatic change of a date, a serial number stamp, and the like, and manipulate a tilting angle of the print head without any separate operation. The purpose is to provide a non-contact jet printer that can adjust the height of the letters.

In addition, the present invention provides a Wyswyg function that can print the letters, numbers to be displayed as shown on the screen, by allowing the user to directly check the current printing status by the display means such as LCD / LED screen, Another purpose is to allow the stamping operation to be performed.

The non-contact jet printer according to the present invention for achieving the above object, the memory unit having a ROM for storing the control program and a RAM for storing the stamp data to perform the stamp operation for a predetermined object to be printed, the stamp operation A control unit for interfacing with an external device, a display unit for displaying data, and an angle adjusting unit for adjusting the angle of the print head, which is moved in a predetermined direction according to the conveying speed of the conveyor. In the non-contact jet printer which performs the stamping operation by injecting ink to a predetermined position of the object, the valve time of the print head is set / supplied according to the control operation of the control unit, or when the encoder unit is mounted, it is measured from the encoder unit. The ink injection timing is determined using the moving speed of the object to be printed. The printer is provided with a counter time circuit unit for applying a predetermined pulse value to the control unit, a control signal and a valve time signal are received from the control unit and the counter time circuit unit, and any one mode is selected according to selection of a piezo mode or a solenoid mode. An angle adjusting unit integrally formed with the print head is provided in the housing for jetting ink through an injection nozzle installed in the head and adjusting the inclination of the type of the object to be printed, and supplied to the controller and logic IC. + 5V, + 12V supplied as necessary voltage to drive encoder and detector, + 40V and microcoder piezo driven for + 24V, 40V DOD valve drive used for header heating heater and 24V DOD valve drive of header control part A power supply for supplying a + 100V DC voltage supplied to the power supply, It consists includes the auxiliary power supply unit that supplies auxiliary power to the clock unit arranged to calculate the date and time.

Preferably, the angle adjusting portion is formed with a predetermined opening on one surface and the other surface, the predetermined scale is displayed to be in close contact with the inner circumferential surface of the opening on one surface, and is formed on one side of the support frame so as not to rotate more than a predetermined angle The support member is supported by a support frame such that a rotation member configured to contact the stopper with the stopper and a data line / ink line extending from the print head are disposed in the opening of the other surface, and the support frame is assembled with a cover formed thereon. do.

According to the non-contact jet printer of the present invention configured as described above, the printer control unit and the printer head for ejecting ink corresponding to the control operation are separated from each other via the data line and the ink line, and are easily installed in the production line. It is possible to not only stamp at a predetermined position of the printed product group as displayed on the display unit, but also to arbitrarily adjust the text height so that the stamp can be appropriately performed according to the printing position of the printed product group.

1 is an overall block diagram of a non-contact jet printer according to an embodiment of the present invention;

2 is a perspective view of a mounting housing including the printhead of FIG. 1;

3 is a right side view of FIG. 2;

4A to 4C are state diagrams in which the inclination of the printing factor is changed in response to the operation of the adjusting means according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: control unit, 102: detection unit,

104: encoder section, 106: counter time circuit section,

108: display unit / alarm unit, 110: memory unit,

112: clock portion, 114: auxiliary power portion,

116: header control unit, 118: print head,

120: angle control unit, 124: power supply unit,

122: ink supply unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 is a block diagram showing the overall configuration of a non-contact jet printer according to an embodiment of the present invention, as shown in the non-contact jet printer, the control unit for controlling the overall printing operation of the jet printer according to the key operation operation 100, a ROM 110a for storing a predetermined program for the operation of the jet printer, a plurality of messages to be printed and various setting states of the printer, and a power supply from the auxiliary power supply 114 at power failure or printer restart. Memory unit 110 is provided with a RAM (110b) consisting of a static RAM (SRAM) for receiving data and read data from the ROM (110a) and RAM (110b) by the key operation ( a display unit / alarm unit 108 for generating a predetermined sound to display a message and to recognize a key pressed state when the key is operated; The control time and the valve time from the counter time circuit section 106 for setting / supplying the valve time of the print head 118 described later according to the control operation of the section 100, and the control section 100 and the counter time circuit section 106. The header controller 116 is configured to receive a signal and control to eject ink provided from the ink supply unit 122 through an injection nozzle installed in the printer head 118, where the header controller 116 is a print head 118. The angle adjusting part 120 is integrally formed with the print head 118 so as to control the inclination of the type of the type stamped on the object to be printed.

On the other hand, the control unit 100 is a real-time clock as a dedicated IC that detects a print object transferred by a conveyor or the like, for example, receives a detection signal from a detection unit 102 made of a photocell and calculates time and date. When the main power is disconnected from the unit (Real Time Clock, hereinafter abbreviated clock unit) 112, the power is supplied from the auxiliary power unit 114 to maintain the contents of the RAM 110b and the clock unit 112. As described above, the auxiliary power supply 114 generally uses a lithium battery to prevent the contents of various setting values and messages of the printer 110 stored in the RAM 110b and the date and time of the clock 112 from being erased.

In addition, the counter time circuit unit 106 sets the valve time by itself, and in the case of using the encoder unit 104, the ink injection timing using the moving speed of the object to be printed measured from the encoder unit 104. Apply the pulse value to determine the control unit 100.

In addition, reference numeral 124 denotes a power supply, which includes various DC voltages required for the non-contact jet printer to operate, for example, the control unit 100, a + 5V supplied to a logic IC, an encoder unit 104, and a detection unit ( + 12V supplied as necessary voltage for driving 102, + 40V required for driving DOD valve for + 24V and 40V used for header heating heater and 24V DOD valve driving of header control unit 116, and piezoelectric driving power for microcoder Each of the + 100V DC voltages supplied to the controller is generated and supplied to the corresponding functional block.

Meanwhile, FIG. 2 is a perspective view of the mounting housing including the print head of FIG. 1, and FIG. 3 is a right side view thereof, and as shown therein, the print head 118 is mounted to be fixed to a predetermined guide rail on one side of the conveyor. It is installed in the housing 117, the mounting housing 117 is provided with a support frame 130 is installed, such as the print head 118, one side and the other side of the support frame 130, the print head 118 ) And openings 140 and 142 of a predetermined width are formed so that the data line 146 and the ink line 114 connected to the rear end of the printer head 118 can be installed. By the support frame 130 and the cover 132 is a structure that is coupled.

On the other hand, the opening 140 is provided with a rotatable rotating member 136 in close contact with the inner circumferential surface so as to execute a predetermined rotational movement, the rotating member 136 is displayed a scale so that the inclination of the printing factor can be seen, The rotating member 136 is fixed by a fixing bolt 148 inserted into a groove formed at a predetermined position of the support frame 130. For example, when the fixing bolt 148 is inserted, the rotating member 136 contacts the side of the rotating member 136. In addition to being fixed without movement, the pivoting member 136 is formed at one side of the pivoting member 136 on the stoppers 136a and 130b formed on one surface of the support frame 130 such that the pivoting member 136 is not rotated by a certain angle, for example, 90 ° or more. The protruding member 136a is in contact.

That is, when the rotating member 136 is rotated in a predetermined direction, the projection member 136a protruding from a certain portion of the outer circumferential surface thereof comes into close contact with the stoppers 130a and 130b, thereby preventing further rotational movement. It is a matter of course that the rotating member 136 can be configured to be 360 ° rotatable without configuring the protrusion member 136a and the stoppers 130a and 130b.

The operation of the non-contact jet printer configured as described above will be described with reference to FIGS. 1 to 4.

First, in the initial state of the printer power-on state, the user edits / inputs a message to be printed through a key operation, for example, date, time, serial number, letters, and numbers, and the input message is stored in the RAM 110b. Stored. At this time, the number of '00 to 99 'is set in the RAM 110b so that 100 message inputs can be normally stored, and a direction key and a numeric key to perform up / down while checking the current message. You can check other messages by operating. Here, messages such as date, time, serial number, letters and numbers can be modified and edited by key operation, and serial number input can be printed in different formats by specifying the print format. In addition, it is programmed to enable Korean input. Generally, only English capital letters can be input / printed in '5 * 5 DOT', and in lower case input mode in '7 * 5 DOT' / '16 * 8 DOT'. As it is set, it inputs / prints by operating separate key when inputting capital letter, and it is possible to edit / print only '16 DOT 'when inputting Korean.

The message input can be directly operated while looking at the display / alarm 108 and can be operated through an external device connected to the RS-232C communication port.

In addition, when printing is to be performed at a desired position of a printed product such as a box or a zone, the printing position key is manipulated so that the printing is performed at a desired position while adjusting the numerical value. It varies depending on the conditions such as the moving speed of the product and the print width.

Then, the stamp mode is adjusted according to the appropriate font width, print size, message length, and font height according to the moving speed of the printed product, that is, the conveying speed of the conveyor. Such operation is performed by a key control unit (not shown in the drawing). Through and adjust the ink ejection amount of the printed letters or numbers.

According to the above operation, when a print width, a print position, and a dot size are each adjusted, and a user wants to print any message stored in the RAM 110b, the user can select any one of the messages stored in the RAM 110b. One message is visually checked / selected directly through the display / alarm unit 108, and the message selection operation is performed by the display unit / alarm unit 108 displaying the setting state of the printer or the message to be printed. In this case, the display unit / alarm unit 108 may use a liquid crystal display (LCD) / light emitting diode (LED) backlight, and the liquid crystal display displays Korean, English, numbers, and various symbols. In addition, WYSWYG function is provided, which can be printed as shown on the screen, and the LED is the power status of the printer, Korean key input status when entering a message, and uppercase / lower case letters when entering English. Displays the selection function, ink presence status, and so on.

As described above, in the state of reading / selecting the printer initial setting and the message to be printed from the RAM 110b through the display unit / alarm unit 108 according to the key operation, the detection unit 102 transfers on the conveyor when the conveyor is driven. It is determined whether there is a print object, and the result is applied to the control unit 100. In addition, when the print object exists, the counter time circuit unit 106 sets the valve opening and closing time of the print head 118 to control the control unit ( The set time is applied to the bar 100. In this case, the counter time circuit unit 106 can set the open / close time independently, whereas the encoder unit 104 is used together with the counter time circuit unit 106. The counter time circuit section 106 and the control section 100 receive the pulse value generated from the 104, measure the moving speed of the print object, and control the ink injection timing.

Thereafter, the control unit 100 transmits the authorized movement speed and message data to the header control unit 116 through a data line, wherein the header control unit 118 can use a microcoder and a DOD valve, which are Piezo headers. The microcoder controller measures the temperature of the header and controls the PID operation (control operation for three operations of proportional, integral, and derivative), and also measures the driving voltage and ink level of the piezo, and the DOD valve controller operates at high speed. Corresponding to the valve, it is possible to clearly print even when the printing object moves at high speed.

Subsequently, the print head 118 ejects ink in accordance with the operation of the header control unit 116. For example, the print head 118 uses a 16-nozzle microcoder and a DOD valve, and the height of the letter is 5, It can be configured to be 7 or 16 dots, and thus have various character heights.

Accordingly, the print head 118 sprays the ink supplied from the ink supply unit 122 to a predetermined position of the object to be printed according to the message data applied from the controller 100 according to the print width or the printing position set as described above. Perform a print operation.

On the other hand, the angle adjuster 120 integrally mounted to the print head 118 may adjust the height and width of the printed characters according to the user's arbitrary operation.

This will be described in more detail with reference to FIGS. 3 and 4.

First, as described above, the user defines a message printing state as follows, for example, as shown in FIG. 4A, the letter height 'h' and the width 'w' on the basis of 5 dots are displayed. Print at a predetermined position.

However, when the state set to the height 'h' as described above is not appropriate to print at the height of the 'h', such as an inappropriate printing position of the object to be printed, or there is a case where the printing is applied by giving a tilt to the printing factor. Then, the user can adjust the height of the letter by manipulating the angle adjuster 120, that is, the rotating member 136 is formed integrally with the print head 118 is configured to be rotatable.

For example, when the printing member is to be adjusted to have an inclination of about 15 ° from the initial printing factor and a letter height of 'h' as shown in FIG. 4B, the rotating member 136 is moved in response to the letter height to be changed. As it rotates, the printer head 118 integrally formed by rotating the rotation member 136 also rotates in the same direction.

Accordingly, the print head 118 integrally formed with the rotation member 136 performs the stamping operation with a tilt angle of 15 °, and the letter height is reduced to h 'from the initial letter height h. In addition, when the inclination is set to 45 ° as shown in Figure 4c it is further reduced than the above-described letter height h, h ', and is printed on the to-be-printed according to the inclination.

That is, as the angle adjuster 120 is rotated, the print heads 117 have different inclinations (angles), which change the height and angle of the letters.

Meanwhile, in order to prevent the rotation member 136 from being driven out of a preset rotation range when the rotation member 136 is rotated, a stopper 130a or 130b is formed at a predetermined portion of the front of the support frame 130 and the rotation member which can adjust the angle. Also, by forming the protrusion 136a on the outer circumferential surface thereof, the protrusion 136a may be further restricted by the stoppers 130a and 130b during rotation.

However, as described above, without being limited to the inclination of the print head 118, it is possible to work without the projection to be able to rotate 360 ° of course. That is, the inclination may be arbitrarily adjusted according to the user setting, as the print head 118 may be rotated by 180 ° to print the letters to be printed in the reverse direction.

On the other hand, the control unit 100 may include having a corresponding control means to use the other head as well as the print head 118 corresponding to a predetermined stamp method. For example, as described above, a separate control function may be included to control the stamping operation by the solenoid method as well as the print head by the piezo method, and the selection operation to each mode may be performed according to the key operation. A mode selection switch (not shown) is provided for simple operation. In this mode selection operation, since the print head and the control means for controlling the same are not integrally formed and separated through the data line and the ink line, the print head can be easily replaced according to the mode selection operation, and thus the stamping operation is performed. Can improve the efficiency.

According to the application example, it can be seen that the inclination of the print head can be easily changed during the stamping operation for the printed product group in the industrial field.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the claims appended to the present invention.

As described in detail above, the non-contact jet printer according to the present invention can prevent the loss of ink by evaporation and spilling of the ink during the stamping, and the print head and the controller part are separated so that the production line such as a conveyor or in a narrow space There is an advantage to simple installation.

In addition, not only the message and the printer setting state can be input and edited through the display unit of the controller unit, for example, LCD, but also the height of the printed text can be easily adjusted according to the tilting operation of the print head.

Claims (4)

A memory unit having a ROM for storing a control program and a RAM for storing the stamp data to perform a stamp operation on a predetermined object to be printed, a controller for interfacing with an external device while performing the overall control operation of the stamp operation, and displaying data The non-contact jet printer is provided with a display unit, and an angle adjusting unit for adjusting the angle of the print head, and sprays ink to a predetermined position of the object to be printed moving in a predetermined direction according to the conveying speed of the conveyor. To According to the control operation of the control unit 100, the valve time of the print head 118 is set or supplied, or when the encoder unit 104 is mounted, the moving speed of the object to be measured measured from the encoder unit 104 is measured. Receiving a control signal and a valve time signal from the counter time circuit section 106 for applying a pulse value for determining the ink injection time to the controller 100 and the controller 100 and the counter time circuit section 106 using In addition, when one of the modes is selected according to the selection of the piezo mode or the solenoid mode, the printer can be used to spray the ink through the spray nozzles installed in the printer head 118 while adjusting the inclination of the type stamped on the object to be printed. The angle adjusting part 120 formed integrally with the head 118 is provided in the mounting housing 117, + 5V supplied to the control unit 100 and the logic IC, + 12V supplied as a necessary voltage for driving the encoder unit 104 and the detection unit 102, the header heating heater of the header control unit 116 and the DOD valve driving for 24V. Power supply unit 124 for supplying the + 24V, + 100V DC voltage supplied to the piezoelectric driving power of the microcoder required to drive the + 24V, 40V DOD valve used in the RAM, RAM (110b) when the power supply of the power supply 124 And an auxiliary power supply 114 for supplying auxiliary power to the clock 112 for calculating a date and time. delete delete According to claim 1, wherein the angle adjuster 120 is formed with a predetermined opening 140, 142 on one side and the other side, is in close contact with the inner circumferential surface of the one side opening 140 to recognize the inclination of the print head 118 A predetermined scale is displayed so that the rotation member 136 and the opening 142 of the other surface are configured such that the protruding member 136a contacts the stoppers 130a and 130b formed on one side of the support frame 130 so as not to rotate more than a predetermined angle. ) Is supported by the support frame 130 is formed so that the data line 146 / ink line 144 extending from the printer head 118 is disposed, the support frame 130 is a cover 132 at the top ) Is formed and assembled non-contact jet printer.