KR100825483B1 - Injection device for jel type inc - Google Patents

Injection device for jel type inc Download PDF

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Publication number
KR100825483B1
KR100825483B1 KR1020070028755A KR20070028755A KR100825483B1 KR 100825483 B1 KR100825483 B1 KR 100825483B1 KR 1020070028755 A KR1020070028755 A KR 1020070028755A KR 20070028755 A KR20070028755 A KR 20070028755A KR 100825483 B1 KR100825483 B1 KR 100825483B1
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KR
South Korea
Prior art keywords
ink
tank
temperature sensor
line
vacuum generator
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KR1020070028755A
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Korean (ko)
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최근수
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일리정공 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14016—Structure of bubble jet print heads
    • B41J2/14032—Structure of the pressure chamber
    • B41J2/14064—Heater chamber separated from ink chamber by a membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16552—Cleaning of print head nozzles using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1721—Collecting waste ink; Collectors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2002/16564—Heating means therefor, e.g. for hot melt inks

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  • Ink Jet (AREA)

Abstract

A gel-type ink injection device is provided to inject a fixed amount of ink at constant pressure by using air pressure, and to judge start or stoppage of ink filling automatically by measuring a liquid level inside an ink tank. An injection device of gel-type ink comprises an upper tank(14), a lower tank(32), an ink injector(44), an ink hopper(54), a drain tank(72), a suction tank(64), a high vacuum generator(86), a low vacuum generator(88) and opening/closing valves(12,26,28,68,70,74,76,78,80,82,84). The upper tank includes temperature sensors(16,34) installed at the maximum ink level, temperature sensors(20,38) installed at the minimum ink level, and comparative temperature sensors(18,36) installed higher than the temperature sensor at the minimum ink level so as to measure the temperature difference between the temperature sensor at the minimum ink level and the comparative temperature sensor. The ink injector is provided with an ink buffer(46) receiving ink from the lower tank through an ink supply line(42). The ink hopper has an orifice(56) for cleaning an ink injection nozzle(48) at one side, and heaters(24,40,50,58) inside. The drain tank stores ink collected from the ink hopper. The suction tank is installed between an ink suction line(60) of the orifice and a suctioned ink discharge line(66) of the drain tank. The high vacuum generator supplies high vacuum to the upper tank and the suction tank. The low vacuum generator provides low vacuum to the upper tank, the low tank and the drain tank. The opening/closing valves are installed at an ink filling line(13), an ink feedback line(22), an ink transfer line(30), the suctioned ink discharge line and an ink drain line(62), respectively.

Description

젤타입 잉크 분사장치{Injection device for jel type inc}Gel type ink jetting device {Injection device for jel type inc}

도 1은 본 발명의 실시예에 따른 젤타입 잉크 분사장치의 개략도이다.1 is a schematic diagram of a gel type ink jetting apparatus according to an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10: 보충탱크 12,26,28,68,70,74,76,78,80,82,84: 개폐밸브10: Supplement tank 12, 26, 28, 68, 70, 74, 76, 78, 80, 82, 84: On-off valve

13: 잉크보충라인 14: 상부탱크13: Ink refill line 14: Upper tank

16,34: 고위온도센서 18,36: 비교온도센서16,34: high temperature sensor 18,36: comparative temperature sensor

20,38: 저위온도센서 22: 잉크피드백라인20,38: Low temperature sensor 22: Ink feedback line

24,40,50,58: 가열기 30: 잉크이동라인24,40,50,58: heater 30: ink transfer line

32: 하부탱크 42: 잉크공급라인32: lower tank 42: ink supply line

44: 잉크분사기 46: 잉크버퍼44: ink sprayer 46: ink buffer

48: 잉크분사노즐 54: 잉크호퍼48: ink spray nozzle 54: ink hopper

56: 노즐청소용 오리피스 60: 잉크흡입라인56: nozzle cleaning orifice 60: ink suction line

62: 잉크드레인라인 64: 흡입탱크62: ink drain line 64: suction tank

66: 흡입잉크배출라인 72: 드레인탱크66: suction ink discharge line 72: drain tank

86: 고진공발생기 88: 저진공발생기86: high vacuum generator 88: low vacuum generator

본 발명은 젤타입 잉크 분사장치에 관한 것으로, 더욱 상세하게는 일정량의 젤타입 잉크를 분사하면서 동시에 잉크가 저장되는 탱크 내에 잉크의 양을 제어할 수 있는 젤타입 잉크 분사장치에 관한 것이다.The present invention relates to a gel type ink jetting apparatus, and more particularly, to a gel type ink jetting apparatus capable of controlling an amount of ink in a tank in which ink is stored while simultaneously spraying a predetermined amount of gel type ink.

젤타입 잉크는 일반적으로 점도가 높아서 중량이 크므로, 기존의 프린터와 같은 장치에서 사용하는 자중에 의한 분무는 사용할 수 없다.Gel-type inks are generally high in viscosity and high in weight, so spraying by own weight used in a device such as a conventional printer cannot be used.

따라서, 젤타입 잉크의 분무가 필요한 경우에는 필요한 잉크량을 일정한 압력으로 분무하고, 잉크를 분무하지 않을 경우에는 적하되지 않고 분출대기상태를 유지할 수 있도록 하는 장치가 필요한다.Therefore, there is a need for a device that can spray the required amount of ink at a constant pressure when spraying the gel type ink is required, and maintains the spray standby state without dropping when the ink is not sprayed.

또한, 젤타입 잉크를 보관하고 있는 탱크 내의 잉크의 보충시기를 판단하기 위해서는 잉크의 레벨을 측정하여야 하는데, 현재 점도가 높은 젤타입 잉크의 레벨을 검측할 수 있는 센서가 없어서, 잉크탱크에 투시창을 형성하거나, 잉크탱크 외측으로 레벨관측용 튜브를 설치하여 측정하고 있지만, 이는 정밀한 측정이 곤란하고 자동화가 어렵다.In addition, in order to determine the replenishment time of the ink in the tank containing the gel-type ink, the ink level should be measured. Since there is no sensor that can detect the level of the gel-type ink having a high viscosity, a sight glass is provided in the ink tank. It is formed or measured by installing a tube for level measurement outside the ink tank, but this is difficult to measure accurately and difficult to automate.

상술한 문제점을 해결하기 위해 안출된 본 발명의 목적은, 일정량의 젤타입 잉크를 분사하면서 동시에 잉크가 저장되는 탱크 내에 잉크의 양을 제어할 수 있는 젤타입 잉크 분사장치를 제공하는 데에 있다.SUMMARY OF THE INVENTION An object of the present invention devised to solve the above problems is to provide a gel type ink jetting apparatus capable of controlling a quantity of ink in a tank in which ink is stored while simultaneously spraying a predetermined amount of gel type ink.

상기의 목적을 달성하기 위한 본 발명은, 보충탱크(10)와 잉크보충라인(13)으로 연결되어 잉크를 공급받아 저장하고, 하부에 잉크를 가열하는 가열기(24)가 설치되며, 잉크의 최고허용높이에 설치되는 고위온도센서(16)와 잉크의 최저허용높이에 설치되는 저위온도센서(20)와 상기 저위온도센서(20)보다 높게 설치되어 상기 저위온도센서(20)와의 온도차이를 측정하는 비교온도센서(18)를 가지는 상부탱크(14); 상기 상부탱크(14)로부터 잉크이동라인(30)을 통해 잉크를 공급받고, 내부의 잉크를 잉크피드랙라인(22)을 통해 상기 상부탱크(14)로 전달하며, 하부에 잉크를 가열하는 가열기(40)가 설치되고, 잉크의 최고허용높이에 설치되는 고위온도센서(34)와 잉크의 최저허용높이에 설치되는 저위온도센서(38)와 상기 저위온도센서(38)보다 높게 설치되어 상기 저위온도센서(38)와의 온도차이를 측정하는 비교온도센서(36)를 가지는 하부탱크(32); 상기 하부탱크(32)로부터 잉크공급라인(42)을 통해 잉크를 공급받는 잉크버퍼(46)가 형성되고, 상기 잉크버퍼(46)의 하측으로 잉크분사노즐(48)이 연통되게 형성되며, 내부에 가열을 위한 가열기(50)가 설치되는 잉크분사기(44); 상기 잉크분사기(44)로부터 적하하는 잉크를 수집하는 공간을 가지고, 일측에 상기 잉크분사노즐(48)을 청소하는 노즐청소용 오리피스(56)를 가지며, 내부에 가열을 위한 가열기(58)가 설치되는 잉크호퍼(54); 잉크드레인라인(62)을 통해 연결되어 상기 잉크호퍼(54)로부터 수집되는 잉크를 저장하는 드레인탱크(72); 상기 노즐청소용 오리피스(56)의 잉크흡입라인(60)과 상기 드레인탱크(72)의 흡입잉크배출라인(66) 사이에 설치되는 흡입탱크(64); 상기 상부탱크(14)와 상기 흡입탱크(64)에 고진공을 공급하는 고진공발생기(86); 상기 상부탱크(14)와 상기 하부탱크(32)와 상기 드레인탱크(72)에 저진공을 공급하는 저진공발생기(88); 및 상기 잉크보충라인(13)과 상기 잉크피드백라인(22)과 상기 잉크이동라인(30)과 상기 흡입잉크배출라인(66)과 상기 잉크드레인라인(62)에 각각 설치되고, 상기 상부탱크(14)와 상기 고진공발생기(86) 사이, 상기 상부탱크(14)와 상기 저진공발생기(88) 사이, 상기 하부탱크(32)와 상기 저진공발생기(88) 사이, 상기 흡입탱크(64)와 상기 고진공발생기(86) 사이, 및 상기 드레인탱크(72)와 상기 저진공발생기(88) 사이에 각각 설치되며, 상기 드레인탱크(72) 하부에 설치되는 개폐밸브(12,26,28,68,70,74,76,78,80,82,84)를 포함하는 젤타입 잉크 분사장치이다.In order to achieve the above object, the present invention is connected to the replenishment tank 10 and the ink replenishment line 13 to receive and store ink, and a heater 24 for heating the ink is installed at the bottom thereof. The temperature difference between the high temperature sensor 16 installed at the allowable height and the low temperature sensor 20 installed at the lowest allowable height of the ink and the low temperature sensor 20 is higher than the low temperature sensor 20 to measure the temperature difference. An upper tank 14 having a comparison temperature sensor 18; A heater for receiving ink from the upper tank 14 through the ink movement line 30, transferring ink therein to the upper tank 14 through the ink feedline 22, and heating the ink in the lower part. 40 is installed and installed above the high temperature sensor 34 and the low temperature sensor 38 and the low temperature sensor 38, which are installed at the lowest allowable height of the ink, which is installed at the highest allowable height of the ink. A lower tank 32 having a comparison temperature sensor 36 for measuring a temperature difference from the temperature sensor 38; An ink buffer 46 is formed to receive ink from the lower tank 32 through the ink supply line 42, and an ink spray nozzle 48 is formed to communicate with the lower side of the ink buffer 46. An ink sprayer 44 on which a heater 50 for heating is installed; It has a space for collecting the ink dropping from the ink jet 44, having a nozzle cleaning orifice 56 for cleaning the ink jet nozzle 48 on one side, a heater 58 for heating therein is installed Ink hopper 54; A drain tank 72 connected through an ink drain line 62 to store ink collected from the ink hopper 54; A suction tank 64 disposed between the ink suction line 60 of the nozzle cleaning orifice 56 and the suction ink discharge line 66 of the drain tank 72; A high vacuum generator (86) for supplying high vacuum to the upper tank (14) and the suction tank (64); A low vacuum generator (88) for supplying low vacuum to the upper tank (14), the lower tank (32) and the drain tank (72); And the ink refill line 13, the ink feedback line 22, the ink transfer line 30, the suction ink discharge line 66, and the ink drain line 62, respectively, and the upper tank ( 14) between the high vacuum generator 86, between the upper tank 14 and the low vacuum generator 88, between the lower tank 32 and the low vacuum generator 88, the suction tank 64 and On-off valves 12, 26, 28, 68, which are installed between the high vacuum generator 86, and between the drain tank 72 and the low vacuum generator 88, respectively, are installed under the drain tank 72. Gel type ink jetting apparatus including 70, 74, 76, 78, 80, 82, 84.

상기 비교온도센서(18,36)은 상기 고위온도센서(16,34)보다 상기 저위온도센서(20,38)에 근접하게 설치되는 것을 특징으로 한다.The comparison temperature sensors 18 and 36 are installed closer to the lower temperature sensors 20 and 38 than the high temperature sensors 16 and 34.

또, 상기 잉크피드백라인(22)은 상기 상부탱크(14)의 상부에서 상기 하부탱크(32)의 하부까지 연장되고, 상기 잉크이동라인(30)은 상기 상부탱크(14)의 하부에서 상기 하부탱크(32)의 상부까지 연장되는 것을 특징으로 한다.In addition, the ink feedback line 22 extends from the upper portion of the upper tank 14 to the lower portion of the lower tank 32, and the ink movement line 30 is lowered from the lower portion of the upper tank 14. Characterized by extending to the top of the tank (32).

또, 상기 잉크피드백라인(22)은 상기 상부탱크(14)의 상기 고위온도센서(16)보다 높고 상기 하부탱크(32)의 상기 저위온도센서(38)보다 낮게 설치되고, 상기 잉크이동라인(30)은 상기 상부탱크(14)의 상기 저위온도센서(20)보다 낮고 상기 하부탱크(32)의 상기 고위온도센서(34)보다 높게 설치되는 것을 특징으로 한다.In addition, the ink feedback line 22 is installed higher than the high temperature sensor 16 of the upper tank 14 and lower than the low temperature sensor 38 of the lower tank 32, and the ink movement line ( 30 is lower than the low temperature sensor 20 of the upper tank 14 and higher than the high temperature sensor 34 of the lower tank 32.

이하, 본 발명을 바람직한 실시예를 첨부한 도면을 참조하여 설명하기로 한다. 하기의 각 도면의 구성 요소들에 참조 부호를 부가함에 있어서, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하며, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기능 및 구성에 대한 상세한 설명은 생략한다. Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described. In adding reference numerals to components of the following drawings, it is determined that the same components have the same reference numerals as much as possible even if displayed on different drawings, and it is determined that they may unnecessarily obscure the subject matter of the present invention. Detailed descriptions of well-known functions and configurations will be omitted.

도 1은 본 발명의 실시예에 따른 젤타입 잉크 분사장치의 개략도이다.1 is a schematic diagram of a gel type ink jetting apparatus according to an embodiment of the present invention.

상기 젤타입 잉크 분사장치는 점도가 큰 젤타입 잉크의 특성에 대응할 수 있는 구조를 가진다.The gel type ink jetting apparatus has a structure that can cope with the characteristics of a gel type ink having a high viscosity.

특히, 젤타입 잉크의 점도를 흐를 수 있는 수준이 되도록 지속적으로 가열하며, 또한 젤타입 잉크의 탱크 내 수위를 측정하기 위하여 온도센서를 사용하고 있다.In particular, a temperature sensor is used to continuously heat the gel type ink to a level capable of flowing, and to measure the level of the gel type ink in the tank.

또한, 젤타입 잉크의 자중에 의한 이동을 제한하기 위하여 부압을 공급하는 방식을 사용하였다.In addition, in order to limit the movement by the weight of the gel type ink, a method of supplying a negative pressure was used.

상기 잉크분사장치는 크게 상부탱크(14)와, 하부탱크(32)와, 잉크분사기(44)와, 잉크버퍼(54)를 포함한다.The ink injection value largely includes an upper tank 14, a lower tank 32, an ink sprayer 44, and an ink buffer 54.

상기 상부탱크(14)는 보충탱크(10)와 잉크보충라인(13)으로 연결되어 잉크를 공급받아 저장한다.The upper tank 14 is connected to the replenishment tank 10 and the ink refill line 13 to receive and store ink.

상기 상부탱크(14)는 상기 하부탱크(32)보다 크게 형성하는 것이 피드백을 고려할 때 바람직하다.The upper tank 14 is preferably formed larger than the lower tank 32 when considering feedback.

상기 상부탱크(14)의 하부에는 젤타입 잉크의 온도를 유지하기 위해 가열하는 가열기(24)가 설치된다.The lower part of the upper tank 14 is provided with a heater 24 for heating to maintain the temperature of the gel type ink.

그리고, 상기 상부탱크(14)의 벽체에는 잉크의 최고허용높이에 설치되는 고위온도센서(16)와 잉크의 최저허용높이에 설치되는 저위온도센서(20)와 상기 저위온도센서(20)보다 높게 설치되어 상기 저위온도센서(20)와의 온도차이를 측정하는 비교온도센서(18)를 가진다.In addition, the wall of the upper tank 14 is higher than the high temperature sensor 16 installed at the maximum allowable height of ink and the low temperature sensor 20 and the low temperature sensor 20 installed at the lowest allowable height of the ink. It is provided with a comparison temperature sensor 18 for measuring the temperature difference with the low temperature sensor 20.

특히, 상기 비교온도센서(18)는 상기 저위온도센서(20)와 근접시켜 설치함으로써, 잉크의 현재 액위가 상기 저위온도센서(20)에 근접 도달했는 지 또는 상기 저위온도센서(20)에 근접했는지 여부를 판단할 수 있다.In particular, the comparison temperature sensor 18 is installed in close proximity to the low temperature sensor 20, so that the current liquid level of the ink has approached the low temperature sensor 20 or close to the low temperature sensor 20. It can be determined whether or not.

상기 상부탱크(14)는 고진공발생기(86)와 연결되며, 개폐밸브(76)에 의해 제어되고, 또 상기 상부탱크(14)는 저진공발생기(88)와 연결되며, 개폐밸브(78)에 의해 제어된다.The upper tank 14 is connected to the high vacuum generator 86, controlled by the on-off valve 76, and the upper tank 14 is connected to the low vacuum generator 88, to the on-off valve 78 Is controlled by

그리고, 상기 상부탱크(14)의 하측으로 상기 하부탱크(32)가 잉크피드백라인(22) 및 잉크이동라인(30)으로 연통되게 설치된다.The lower tank 32 is installed to communicate with the ink feedback line 22 and the ink movement line 30 under the upper tank 14.

상기 하부탱크(32)에도 잉크의 최고허용높이에 설치되는 고위온도센서(34)와 잉크의 최저허용높이에 설치되는 저위온도센서(38)와 상기 저위온도센서(38)보다 높게 설치되어 상기 저위온도센서(38)와의 온도차이를 측정하는 비교온도센서(36)를 가진다.In the lower tank 32, the lower temperature sensor 38 and the lower temperature sensor 38 and the lower temperature sensor 38, which are installed at the highest allowable height of the ink and the lowest allowable height of the ink, are installed higher. It has a comparative temperature sensor 36 which measures the temperature difference with the temperature sensor 38. As shown in FIG.

상기 하부탱크(32)의 하부에도 젤타입 잉크의 온도를 유지하기 위해 가열하는 가열기(40)가 설치된다.In the lower part of the lower tank 32, a heater 40 for heating to maintain the temperature of the gel-type ink is installed.

그리고, 상기 하부탱크(32)는 저진공발생기(88)와 연결되며, 개폐밸브(80)에 의해 단속된다.In addition, the lower tank 32 is connected to the low vacuum generator 88, it is intermittent by the on-off valve (80).

또, 상기 잉크피드백라인(22)은 상기 상부탱크(14)의 상기 고위온도센서(16)보다 높고 상기 하부탱크(32)의 상기 저위온도센서(38)보다 낮게 설치되고, 상기 잉크이동라인(30)은 상기 상부탱크(14)의 상기 저위온도센서(20)보다 낮고 상기 하부탱크(32)의 상기 고위온도센서(34)보다 높게 설치된다.In addition, the ink feedback line 22 is installed higher than the high temperature sensor 16 of the upper tank 14 and lower than the low temperature sensor 38 of the lower tank 32, and the ink movement line ( 30 is installed lower than the low temperature sensor 20 of the upper tank 14 and higher than the high temperature sensor 34 of the lower tank 32.

상기 하부탱크(32)는 잉크공급라인에 의해 하측의 잉크분사기(44)와 연결된다.The lower tank 32 is connected to the lower ink sprayer 44 by the ink supply line.

상기 잉크분사기(44)에는 상기 하부탱크(32)로부터 잉크공급라인(42)을 통해 잉크를 공급받는 잉크버퍼(46)가 형성된다.The ink sprayer 44 has an ink buffer 46 for receiving ink from the lower tank 32 through the ink supply line 42.

그리고, 상기 잉크버퍼(46)의 하측으로 잉크분사노즐(48)이 연통되게 형성된다. 상기 잉크분사노즐(48)은 프린터의 헤드에 사용될 수 있다.Then, the ink injection nozzle 48 is formed in communication with the lower side of the ink buffer 46. The ink spray nozzle 48 may be used for the head of the printer.

그리고, 상기 잉크버퍼(46)의 내부에 젤타입 잉크의 온도를 유지하기 위해 가열하는 가열기(50)가 설치된다. In addition, a heater 50 is installed inside the ink buffer 46 to heat the gel type ink.

상기 잉크분사기(44)와 이격되어 상기 잉크호퍼(54)가 설치된다.The ink hopper 54 is installed spaced apart from the ink sprayer 44.

상기 잉크호퍼(54)는 상기 잉크분사기(44)로부터 적하하는 잉크를 수집하는 공간을 가지며, 일측에 상기 잉크분사노즐(48)에 부압을 걸어 흡입하여 청소하는 노즐청소용 오리피스(56)가 형성된다.The ink hopper 54 has a space for collecting the dripping ink from the ink injector 44, and a nozzle cleaning orifice 56 for suctioning and cleaning by applying negative pressure to the ink injection nozzle 48 on one side is formed. .

그리고, 상기 잉크호퍼(54)의 내부에 젤타입 잉크의 온도를 유지하기 위해 가열하는 가열기(58)가 설치된다. In addition, a heater 58 is installed inside the ink hopper 54 to heat the gel ink.

상기 노즐청소용 오리피스(56)에 부압을 걸기 위해 상기 노즐처소용 오리피스(56)에 흡입잉크배출라인(66)을 통해 흡입탱크(64)를 연결하고, 상기 흡입탱크(64)를 상기 고진공발생기(86)과 연결한다. In order to apply negative pressure to the nozzle cleaning orifice 56, a suction tank 64 is connected to the nozzle cleaning orifice 56 through a suction ink discharge line 66, and the suction tank 64 is connected to the high vacuum generator ( 86).

상기 고진공발생기(86)와 상기 흡입탱크(64) 사이에 개폐밸브(82)가 설치된다.An open / close valve 82 is installed between the high vacuum generator 86 and the suction tank 64.

그리고, 상기 흡입탱크(64)와 상기 잉크호퍼(54)는 상기 흡입잉크배출라인(66)과 상기 잉크드레인라인(62)를 통해 드레인탱크(72)와 각각 연결된다.The suction tank 64 and the ink hopper 54 are connected to the drain tank 72 through the suction ink discharge line 66 and the ink drain line 62, respectively.

상기 흡입잉크배출라인(66)에는 개폐밸브(68)이 설치되고, 상기 잉크드레인라인(62)에는 개폐밸브(70)가 설치된다.The suction ink discharge line 66 is provided with an on-off valve 68, the ink drain line 62 is provided with an on-off valve 70.

상기 드레인탱크(72)는 개폐밸브(84)를 경유하여 저진공발생기(88)와 연결된다.The drain tank 72 is connected to the low vacuum generator 88 via the on-off valve 84.

이하, 본 발명의 작동모습을 설명한다.Hereinafter, the operation of the present invention will be described.

젤타입 잉크의 점도를 유지하여 흐를 수 있도록 온도를 유지하기 위해 모든 가열기(24,40,50,58)은 모두 작동시킨다.All heaters 24, 40, 50, 58 are all operated to maintain the temperature of the gel type ink so that it can flow.

먼저, 상부탱크(14)에 잉크를 보충하기 위해서는 상기 개폐밸브(12,76)를 개방하고, 상기 개폐밸브(26,28,78,80,82)는 폐쇄한다.First, in order to replenish ink in the upper tank 14, the opening and closing valves 12 and 76 are opened, and the opening and closing valves 26, 28, 78, 80 and 82 are closed.

따라서, 상기 고진공발생기(86)의 부압으로 인해 상기 보충탱크(10)의 잉크 가 상기 상부탱크(14) 쪽으로 유입되게 된다.Therefore, the ink of the replenishment tank 10 flows into the upper tank 14 due to the negative pressure of the high vacuum generator 86.

이 때, 상기 상부탱크(14)의 상기 저위온도센서(20)와 상기 비교온도센서(18)는 높이차가 있으므로, 상기 잉크가 상기 저위온도센서(20)와 상기 비교온도센서의 사이에 있게 되는 경우에는 상기 저위온도센서(20)와 상기 비교온도센서(18)의 온도가 다르게 된다.At this time, since the low temperature sensor 20 and the comparison temperature sensor 18 of the upper tank 14 has a height difference, the ink is between the low temperature sensor 20 and the comparison temperature sensor. In this case, the temperature of the low temperature sensor 20 and the comparison temperature sensor 18 is different.

반대로, 상기 저위온도센서(20)가 상기 비교온도센서(18)와 같거나 허용치 이하의 온도차인 경우에는 잉크의 액위가 상기 비교온도센서(18)의 높이 이상으로 판단된다.On the contrary, when the low temperature sensor 20 is the same temperature difference as the comparison temperature sensor 18 or less than the allowable value, the liquid level of the ink is determined to be greater than or equal to the height of the comparison temperature sensor 18.

그리고, 상기 고위온도센서(16)가 상기 비교온도센서(18)의 온도와 같거나 허용치 이하의 온도차인 경우에는 잉크의 액위가 상기 고위온도센서(16)의 높이 이상으로 판단된다.When the high temperature sensor 16 is at a temperature difference equal to or lower than the temperature of the comparison temperature sensor 18, the liquid level of the ink is determined to be equal to or higher than the height of the high temperature sensor 16.

따라서, 상기 상부탱크(14) 내의 잉크유량의 저수위, 적정수위, 고수위를 판단할 수 있다.Therefore, it is possible to determine the low level, the appropriate level, and the high level of the ink flow rate in the upper tank 14.

다음으로, 잉크를 하부탱크(32)에 공급하기 위해서는 개폐밸브(12,76)를 잠그고 개폐밸브(78,80,28)를 열어 상기 하부탱크(32)와 상기 상부탱크(14)에 동일한 크기의 저진공을 공급하여 젤타입 잉크의 자중에 의한 속도보다 천천히 상기 하부탱크(32)로 공급되게 된다.Next, in order to supply ink to the lower tank 32, the opening and closing valves 12 and 76 are closed and the opening and closing valves 78, 80 and 28 are opened to have the same size in the lower tank 32 and the upper tank 14. The low vacuum of the supply is supplied to the lower tank 32 more slowly than the speed due to the weight of the gel-type ink.

이 때에도 상부탱크(14)의 경우와 마찬가지로 상기 고위온도센서(34), 비교온도센서(36), 및 저위온도센서(38)에 의해 상기 하부탱크(32) 내의 잉크유량의 저수위, 적정수위, 고수위를 판단할 수 있다.At this time, as in the case of the upper tank 14, the low water level, the appropriate water level, and the ink flow rate in the lower tank 32 by the high temperature sensor 34, the comparative temperature sensor 36, and the low temperature sensor 38, High water level can be judged.

만일, 장치를 종료하고자 하는 경우, 잉크를 하부탱크(32)에서 상기 상부탱크(14)로 피드백하고자 하는 경우에는 상기 개폐밸브(76,26)을 개방하고, 개폐밸브(12,28,78)을 폐쇄하면, 상기 고진공발생기(86)의 부압으로 인하여 상기 잉크피드백라인(22)을 타고 잉크가 상기 상부탱크(14)로 피드백되게 된다.If the device is to be shut down, when the ink is to be fed back from the lower tank 32 to the upper tank 14, the opening and closing valves 76 and 26 are opened and the opening and closing valves 12, 28 and 78 are closed. When the is closed, ink is fed back to the upper tank 14 through the ink feedback line 22 due to the negative pressure of the high vacuum generator 86.

그리고, 상기 하부탱크(32)에서 공급된 잉크가 상기 잉크분사기(44)의 잉크분사노즐(48)에서 적하되어 상기 잉크호퍼(54)에 수집되면, 상기 개폐밸브(70,84)를 열어 상기 잉크호퍼(54) 내의 잉크를 상기 드레인탱크(72)로 이송시킬 수 있다.When the ink supplied from the lower tank 32 is dropped in the ink spray nozzle 48 of the ink sprayer 44 and collected in the ink hopper 54, the opening and closing valves 70 and 84 are opened to open the Ink in the ink hopper 54 may be transferred to the drain tank 72.

또, 상기 잉크분사기(44)의 잉크분사노즐(48)로부터 잉크를 강제 배출시켜 상기 잉크분사노즐(48)을 청소하기 위해서는, 상기 개폐밸브(68)을 닫은 상태에서 상기 개폐밸브(82)를 개방하는 것에 의해 이루어질 수 있다.Further, in order to clean the ink injection nozzle 48 by forcibly discharging ink from the ink jet nozzle 48 of the ink jet nozzle 44, the on / off valve 82 is closed while the on / off valve 68 is closed. By opening.

따라서, 상기 잉크분사노즐(48)의 잉크는 상기 노즐청소용 오리피스(56)를 통해 상기 흡입탱크(64)로 저장되게 되고, 다시 상기 개폐밸브(82)를 닫고, 상기 개폐밸브(68)을 개방하면, 상기 흡입탱크(64) 내의 잉크가 상기 드레인탱크(72) 내로 유입될 수 있다.Therefore, the ink of the ink injection nozzle 48 is stored in the suction tank 64 through the nozzle cleaning orifice 56, closes the on-off valve 82, and opens the on-off valve 68. If it is, the ink in the suction tank 64 may flow into the drain tank 72.

상기 드레인탱크(72) 내의 잉크는 상기 개폐밸브(74)의 개방을 통해 밖으로 배출될 수 있다.The ink in the drain tank 72 may be discharged out through the opening of the open / close valve 74.

상기와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만 해당 기술 분야의 숙련된 당업자라면 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다. As described above, it has been described with reference to the preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

본 발명을 통하여, 공압을 이용하여 일정량의 잉크를 일정한 압력으로 연속적으로 분사할 수 있고, 잉크를 분무하지 않는 경우에는 잉크를 분출대기상태로 유지할 수 있는 젤타입 잉크 분사장치를 제공할 수 있다.Through the present invention, it is possible to provide a gel-type ink jetting apparatus that can continuously spray a predetermined amount of ink at a constant pressure by using pneumatic pressure, and can maintain the ink in a jet standby state when the ink is not sprayed.

또, 본 발명을 통하여 잉크의 탱크 내의 액위를 자동적으로 측정하여 잉크의 보충의 개시 또는 중지의 판단이 가능하다. 또, 측정기구가 온도센서로써 설치비용이 적은 장점이 있다.Further, through the present invention, it is possible to automatically measure the liquid level in the tank of ink to determine the start or stop of replenishment of the ink. In addition, the measuring device has the advantage of low installation cost as a temperature sensor.

Claims (4)

보충탱크(10)와 잉크보충라인(13)으로 연결되어 잉크를 공급받아 저장하고, 하부에 잉크를 가열하는 가열기(24)가 설치되며, 잉크의 최고허용높이에 설치되는 고위온도센서(16)와 잉크의 최저허용높이에 설치되는 저위온도센서(20)와 상기 저위온도센서(20)보다 높게 설치되어 상기 저위온도센서(20)와의 온도차이를 측정하는 비교온도센서(18)를 가지는 상부탱크(14);The high temperature sensor 16 is connected to the replenishment tank 10 and the ink refill line 13 to receive and store ink, and a heater 24 is installed at a lower portion of the ink, and is installed at a maximum allowable height of the ink. And an upper tank having a low temperature sensor 20 installed at a minimum allowable height of ink and a comparison temperature sensor 18 installed higher than the low temperature sensor 20 and measuring a temperature difference with the low temperature sensor 20. (14); 상기 상부탱크(14)로부터 잉크이동라인(30)을 통해 잉크를 공급받고, 내부의 잉크를 잉크피드랙라인(22)을 통해 상기 상부탱크(14)로 전달하며, 하부에 잉크를 가열하는 가열기(40)가 설치되고, 잉크의 최고허용높이에 설치되는 고위온도센서(34)와 잉크의 최저허용높이에 설치되는 저위온도센서(38)와 상기 저위온도센서(38)보다 높게 설치되어 상기 저위온도센서(38)와의 온도차이를 측정하는 비교온도센서(36)를 가지는 하부탱크(32);A heater for receiving ink from the upper tank 14 through the ink movement line 30, transferring ink therein to the upper tank 14 through the ink feedline 22, and heating the ink in the lower part. 40 is installed and installed above the high temperature sensor 34 and the low temperature sensor 38 and the low temperature sensor 38, which are installed at the lowest allowable height of the ink, which is installed at the highest allowable height of the ink. A lower tank 32 having a comparison temperature sensor 36 for measuring a temperature difference from the temperature sensor 38; 상기 하부탱크(32)로부터 잉크공급라인(42)을 통해 잉크를 공급받는 잉크버퍼(46)가 형성되고, 상기 잉크버퍼(46)의 하측으로 잉크분사노즐(48)이 연통되게 형성되며, 내부에 가열을 위한 가열기(50)가 설치되는 잉크분사기(44);An ink buffer 46 is formed to receive ink from the lower tank 32 through the ink supply line 42, and an ink spray nozzle 48 is formed to communicate with the lower side of the ink buffer 46. An ink sprayer 44 on which a heater 50 for heating is installed; 상기 잉크분사기(44)로부터 적하하는 잉크를 수집하는 공간을 가지고, 일측에 상기 잉크분사노즐(48)을 청소하는 노즐청소용 오리피스(56)를 가지며, 내부에 가열을 위한 가열기(58)가 설치되는 잉크호퍼(54); It has a space for collecting the ink dropping from the ink jet 44, having a nozzle cleaning orifice 56 for cleaning the ink jet nozzle 48 on one side, a heater 58 for heating therein is installed Ink hopper 54; 잉크드레인라인(62)을 통해 연결되어 상기 잉크호퍼(54)로부터 수집되는 잉크를 저장하는 드레인탱크(72);A drain tank 72 connected through an ink drain line 62 to store ink collected from the ink hopper 54; 상기 노즐청소용 오리피스(56)의 잉크흡입라인(60)과 상기 드레인탱크(72)의 흡입잉크배출라인(66) 사이에 설치되는 흡입탱크(64);A suction tank 64 disposed between the ink suction line 60 of the nozzle cleaning orifice 56 and the suction ink discharge line 66 of the drain tank 72; 상기 상부탱크(14)와 상기 흡입탱크(64)에 고진공을 공급하는 고진공발생기(86);A high vacuum generator (86) for supplying high vacuum to the upper tank (14) and the suction tank (64); 상기 상부탱크(14)와 상기 하부탱크(32)와 상기 드레인탱크(72)에 저진공을 공급하는 저진공발생기(88); 및A low vacuum generator (88) for supplying low vacuum to the upper tank (14), the lower tank (32) and the drain tank (72); And 상기 잉크보충라인(13)과 상기 잉크피드백라인(22)과 상기 잉크이동라인(30)과 상기 흡입잉크배출라인(66)과 상기 잉크드레인라인(62)에 각각 설치되고, 상기 상부탱크(14)와 상기 고진공발생기(86) 사이, 상기 상부탱크(14)와 상기 저진공발생기(88) 사이, 상기 하부탱크(32)와 상기 저진공발생기(88) 사이, 상기 흡입탱크(64)와 상기 고진공발생기(86) 사이, 및 상기 드레인탱크(72)와 상기 저진공발생기(88) 사이에 각각 설치되며, 상기 드레인탱크(72) 하부에 설치되는 개폐밸브(12,26,28,68,70,74,76,78,80,82,84)를 포함하는 젤타입 잉크 분사장치. The ink refill line 13, the ink feedback line 22, the ink transfer line 30, the suction ink discharge line 66 and the ink drain line 62, respectively, is installed in the upper tank 14 ) Between the high vacuum generator 86, between the upper tank 14 and the low vacuum generator 88, between the lower tank 32 and the low vacuum generator 88, the suction tank 64 and the On-off valves 12, 26, 28, 68 and 70, which are installed between the high vacuum generator 86 and between the drain tank 72 and the low vacuum generator 88, respectively, are installed under the drain tank 72. Gel type ink jetting apparatus comprising a, 74, 76, 78, 80, 82, 84. 제1항에 있어서, 상기 비교온도센서(18,36)은 상기 고위온도센서(16,34)보다 상기 저위온도센서(20,38)에 근접하게 설치되는 것을 특징으로 하는 젤타입 잉크 분사장치.The gel type ink jetting apparatus according to claim 1, wherein the comparative temperature sensor (18,36) is installed closer to the lower temperature sensor (20,38) than the high temperature sensor (16,34). 제1항에 있어서, 상기 잉크피드백라인(22)은 상기 상부탱크(14)의 상부에서 상기 하부탱크(32)의 하부까지 연장되고, 상기 잉크이동라인(30)은 상기 상부탱크(14)의 하부에서 상기 하부탱크(32)의 상부까지 연장되는 것을 특징으로 하는 젤타입 잉크 분사장치.According to claim 1, wherein the ink feedback line 22 extends from the upper portion of the upper tank 14 to the lower portion of the lower tank 32, the ink movement line 30 of the upper tank 14 Gel type ink jet device, characterized in that extending from the bottom to the top of the lower tank (32). 제3항에 있어서, 상기 잉크피드백라인(22)은 상기 상부탱크(14)의 상기 고위온도센서(16)보다 높고 상기 하부탱크(32)의 상기 저위온도센서(38)보다 낮게 설치되고, 상기 잉크이동라인(30)은 상기 상부탱크(14)의 상기 저위온도센서(20)보다 낮고 상기 하부탱크(32)의 상기 고위온도센서(34)보다 높게 설치되는 것을 특징으로 하는 젤타입 잉크 분사장치.According to claim 3, wherein the ink feedback line 22 is installed higher than the high temperature sensor 16 of the upper tank 14 and lower than the low temperature sensor 38 of the lower tank 32, The ink movement line 30 is lower than the low temperature sensor 20 of the upper tank 14, the gel type ink jet device, characterized in that installed higher than the high temperature sensor 34 of the lower tank 32 .
KR1020070028755A 2007-03-23 2007-03-23 Injection device for jel type inc KR100825483B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000185395A (en) * 1998-12-22 2000-07-04 Canon Inc Ink jet recording apparatus and color filter producing apparatus having the same
KR20060006083A (en) * 2004-01-14 2006-01-18 세이코 엡슨 가부시키가이샤 Liquid jetting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000185395A (en) * 1998-12-22 2000-07-04 Canon Inc Ink jet recording apparatus and color filter producing apparatus having the same
KR20060006083A (en) * 2004-01-14 2006-01-18 세이코 엡슨 가부시키가이샤 Liquid jetting device

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