TWI761036B - Tablet printing apparatus and maintenance method of tablet printing apparatus - Google Patents
Tablet printing apparatus and maintenance method of tablet printing apparatus Download PDFInfo
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- TWI761036B TWI761036B TW110101487A TW110101487A TWI761036B TW I761036 B TWI761036 B TW I761036B TW 110101487 A TW110101487 A TW 110101487A TW 110101487 A TW110101487 A TW 110101487A TW I761036 B TWI761036 B TW I761036B
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/36—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on tablets, pills, or like small articles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
- A61J3/005—Coating of tablets or the like
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
- A61J3/007—Marking tablets or the like
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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
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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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
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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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14088—Structure of heating means
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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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
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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
- B41J2/21—Ink jet for multi-colour printing
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
本發明提供一種在片劑印刷裝置中,可抑制墨水消耗量,同時可效率良好地消除墨水堵塞的技術。該片劑印刷裝置包括:具有能夠噴出墨水的多個噴嘴的噴墨式噴頭、能夠調整噴頭內的壓力的壓力調整部、能夠在噴頭的內部使墨水升溫到第一溫度及第二溫度的加熱器、以及控制各部的控制部。控制部能夠執行:印刷步驟,自一部分噴嘴對片劑的表面噴出第一溫度的墨水;以及恢復步驟,提高噴頭內的壓力並將全部的噴嘴作為噴出對象而噴出第二溫度的墨水。第二溫度是較第一溫度高的溫度。藉此,在恢復步驟中,藉由降低墨水的黏度來降低噴嘴內的壓損,從而能夠抑制在恢復步驟中噴出的墨水的量。The present invention provides a technique for efficiently eliminating ink clogging while suppressing ink consumption in a tablet printing apparatus. The tablet printing apparatus includes an ink jet head having a plurality of nozzles capable of ejecting ink, a pressure adjustment unit capable of adjusting the pressure in the head, and a heater capable of raising the temperature of the ink to a first temperature and a second temperature inside the head device, and a control unit that controls each unit. The control unit can perform a printing step of ejecting ink of the first temperature from some nozzles to the surface of the tablet, and a recovery step of increasing the pressure in the head to eject ink of the second temperature from all the nozzles. The second temperature is a higher temperature than the first temperature. In this way, in the recovery step, by reducing the viscosity of the ink, the pressure loss in the nozzle is reduced, so that the amount of ink ejected in the recovery step can be suppressed.
Description
本發明是有關於一種對片劑的表面進行印刷的片劑印刷裝置及片劑印刷裝置的維護方法。The present invention relates to a tablet printing device that prints on the surface of a tablet and a maintenance method of the tablet printing device.
在作為醫藥品的一形態的片劑表面印有用以識別產品的文字或代碼。此種文字或代碼亦存在藉由刻印來印字的情況,但是刻印中存在視認性低的問題。特別是,近年來,因通用醫藥品的普及而片劑的種類多樣化。因此,為了容易識別片劑,以噴墨方式對片劑的表面進行清晰的印字的技術備受關注。A character or code for identifying the product is printed on the surface of the tablet, which is a form of medicine. Such characters and codes are sometimes printed by engraving, but the engraving has a problem of low visibility. In particular, in recent years, the variety of tablets has been diversified due to the spread of general-purpose pharmaceuticals. Therefore, in order to easily identify the tablet, attention has been paid to a technique of clearly printing the surface of the tablet by an inkjet method.
在專利文獻1中,記載了藉由噴墨方式在片劑表面進行印刷的先前裝置的例子。
[現有技術文獻]
[專利文獻]In
[專利文獻1]國際公開第2016/159096號[Patent Document 1] International Publication No. 2016/159096
[發明所欲解決之課題] 在噴墨方式的片劑印刷裝置中,一邊搬運片劑,一邊自設置在噴頭的噴出面上的多個噴嘴向片劑噴出墨水的液滴。以下,將該「墨水的液滴」簡稱為「墨滴」。在此種噴墨方式的印刷裝置中,在各噴嘴的內部配置墨水的液面。因此,在使用頻率低的噴嘴中,墨水的溶媒自液面蒸發,在噴嘴內產生彎月面(meniscus)的上升、墨水成分的凝聚及墨水成分的濃縮等。藉此,墨水的流動性降低,產生墨水堵塞的問題。[The problem to be solved by the invention] In an ink jet type tablet printing apparatus, ink droplets are ejected onto the tablet from a plurality of nozzles provided on the ejection surface of the ejection head while the tablet is being conveyed. Hereinafter, this "droplet of ink" is simply referred to as "droplet of ink". In such an ink jet printing apparatus, the liquid level of the ink is arranged inside each nozzle. Therefore, in a nozzle that is used less frequently, the solvent of the ink evaporates from the liquid surface, and the rise of the meniscus, the aggregation of the ink components, the concentration of the ink components, and the like occur in the nozzle. As a result, the fluidity of the ink is lowered, and the problem of ink clogging occurs.
為了解決此種問題,在一般的噴墨方式的印刷裝置中,使用對噴頭內的墨水加壓,使墨水自全部的噴嘴同時噴出的被稱為清除處理的維護方法。藉由清除處理施加壓力噴出墨水,將產生的凝聚的墨水成分、或濃縮的墨水噴出至噴嘴外。In order to solve such a problem, in a general inkjet printing apparatus, a maintenance method called a purge process is used in which the ink in the head is pressurized and the ink is ejected from all the nozzles at the same time. The ink is ejected by applying pressure by the cleaning process, and the generated agglomerated ink components or concentrated ink are ejected out of the nozzles.
與此相對,片劑印刷裝置的印字率為8%左右,與其他印刷裝置相比印字率低。因此,在多數噴嘴中,不噴出墨水的期間長。即,在片劑印刷裝置中,與其他印刷裝置中的情況相比,墨水的流動性容易下降,產生墨水堵塞的噴嘴的數量亦變多。On the other hand, the printing rate of the tablet printing apparatus is about 8%, which is lower than that of other printing apparatuses. Therefore, in many nozzles, the period during which ink is not ejected is long. That is, in the tablet printing apparatus, the fluidity of the ink tends to decrease compared with the case of other printing apparatuses, and the number of nozzles which are clogged with ink also increases.
因此,在片劑印刷裝置中,為了藉由以往的清除處理消除墨水堵塞,需要增加清除時間或清除次數。即,與其他印刷裝置相比,消耗更多的墨水。Therefore, in the tablet printing apparatus, in order to eliminate the ink clogging by the conventional cleaning process, it is necessary to increase the cleaning time or the number of cleanings. That is, more ink is consumed than other printing devices.
但是,片劑印刷裝置中使用的可食性墨水與通常的紙或膜等介質中使用的墨水相比非常昂貴。However, edible inks used in tablet printing apparatuses are very expensive compared to inks used in ordinary media such as paper and film.
本發明是鑒於此種情況而成者,其目的在於提供一種能夠抑制墨水的消耗量,同時能效率良好地消除墨水堵塞的技術。 [解決課題之手段]The present invention has been made in view of such a situation, and an object of the present invention is to provide a technique capable of efficiently eliminating ink clogging while suppressing the consumption of ink. [Means of Solving Problems]
為了解決上述課題,本申請案的第一發明是對片劑的表面進行印刷的噴墨式片劑印刷裝置,其包括:噴墨式的噴頭,包括能夠噴出墨水的多個噴嘴;壓力調整部,能夠調整所述噴頭內的壓力;加熱器,能夠在所述噴頭的內部,將自所述噴嘴噴出的所述墨水升溫至第一溫度及第二溫度;以及控制部,控制所述噴頭、所述壓力調整部及所述加熱器,且所述控制部能夠執行:印刷步驟,針對所述片劑的表面,自一部分所述噴嘴噴出所述第一溫度的所述墨水;以及恢復步驟,藉由所述壓力調整部提高所述噴頭內的壓力,將全部的所述噴嘴作為噴出對象而噴出所述第二溫度的所述墨水,且所述第二溫度為高於所述第一溫度的溫度。In order to solve the above-mentioned problems, the first invention of the present application is an inkjet-type tablet printing apparatus for printing the surface of a tablet, comprising: an inkjet-type head including a plurality of nozzles capable of ejecting ink; a pressure adjustment unit , which can adjust the pressure in the nozzle; a heater can heat the ink ejected from the nozzle to a first temperature and a second temperature inside the nozzle; and a control unit controls the nozzle, the pressure adjustment unit and the heater, and the control unit can perform: a printing step of ejecting the ink of the first temperature from a part of the nozzles on the surface of the tablet; and a recovery step, The pressure in the head is increased by the pressure adjustment unit, and the ink of the second temperature is ejected from all the nozzles as ejection objects, and the second temperature is higher than the first temperature temperature.
本申請案的第二發明是在對片劑的表面進行印刷的噴墨式片劑印刷裝置中,具有噴出墨水的多個所述噴嘴的噴頭的維護方法,其包括:A)將所述噴頭內的所述墨水的溫度升溫到第二溫度的步驟;B)在所述步驟A)之後,提高所述噴頭內的壓力,將全部的所述噴嘴作為噴出對象而噴出所述墨水的步驟,且所述第二溫度是較對所述片劑進行印刷的情況下的所述噴頭內的所述墨水的溫度即第一溫度高的溫度。 [發明的效果]A second invention of the present application is a maintenance method for a head having a plurality of the nozzles for ejecting ink in an ink jet tablet printing apparatus that prints on the surface of a tablet, comprising: A) placing the head The step of raising the temperature of the ink inside to the second temperature; B) after the step A), the pressure in the nozzle is increased, and the ink is ejected from all the nozzles as ejection objects, The second temperature is higher than the first temperature, which is the temperature of the ink in the head when printing the tablet. [Effect of invention]
根據本申請案的第一發明及第二發明,在恢復步驟中,將墨水的溫度設為較印刷步驟時的第一溫度高的第二溫度。藉此,降低墨水的黏度,降低噴嘴內的壓損。其結果,能夠抑制在恢復步驟中噴出的墨水的量。According to the first and second inventions of the present application, in the recovery step, the temperature of the ink is set to the second temperature higher than the first temperature in the printing step. Thereby, the viscosity of the ink is reduced, and the pressure loss in the nozzle is reduced. As a result, the amount of ink ejected in the recovery step can be suppressed.
以下,參照圖式說明本發明的實施方式。再者,在以下的說明中,將搬運多個片劑的方向稱為「搬運方向」,將相對於搬運方向垂直且水平的方向稱為「寬度方向」。Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the direction in which a plurality of tablets are conveyed is referred to as a "conveyance direction", and a direction perpendicular and horizontal to the conveyance direction is referred to as a "width direction".
<1.片劑印刷裝置的整體構成>
圖1是表示本發明的一個實施方式的片劑印刷裝置1的構成的圖。該片劑印刷裝置1是一邊搬運作為醫藥品的多個片劑9,一邊在各片劑9的表面印刷產品名、產品代碼、公司名、品牌標誌等圖像的裝置。如圖1所示,本實施方式的片劑印刷裝置1包括片劑搬運機構10、印刷部20、乾燥機構30、及控制部100。<1. Overall configuration of tablet printing device>
FIG. 1 is a diagram showing the configuration of a
片劑搬運機構10是對作為印刷對象物的多個片劑9一邊進行保持一邊進行搬運的機構。片劑搬運機構10包括一對帶輪11以及架設於一對帶輪11之間的環狀的搬運帶12。投入到片劑印刷裝置1中的多個片劑9藉由包括振動送料器或搬運滾筒等的搬入機構51而等間隔地排列,並且供給到搬運帶12的外周面。一對帶輪11中的一方藉由自搬運用馬達13獲得的動力進行旋轉。藉此,搬運帶12沿圖1中的箭頭方向轉動。此時,一對帶輪11中的另一方隨著搬運帶12的轉動而從動旋轉。The
圖2是片劑搬運機構10的局部立體圖。如圖2所示,搬運帶12上設置有多個吸附孔14。多個吸附孔14在搬運方向及寬度方向上等間隔地排列。另外,如圖1所示,片劑搬運機構10包括自搬運帶12內側的空間吸出氣體的抽吸機構15。當使抽吸機構15運行時,搬運帶12內側的空間成為低於大氣壓的負壓。多個片劑9藉由該負壓而吸附保持於吸附孔14。FIG. 2 is a partial perspective view of the
如此,片劑搬運機構10一邊使多個片劑9以一定的間隔保持在多個吸附孔14中,一邊藉由搬運帶12的轉動來搬運多個片劑9。在後述的4個噴頭21的下方,多個片劑9在水平方向被搬運。In this way, the
另外,如圖1所示,片劑搬運機構10在搬運帶12的內側具有送風機構16。當使送風機構16運行時,搬運帶12的多個吸附孔14中,只有與搬出機構52相向的吸附孔14成為較大氣壓高的正壓。藉此,解除該吸附孔14中的片劑9的吸附,自搬運帶12向搬出機構52交接片劑9。搬出機構52例如藉由其他搬運帶將自搬運帶12交接的片劑9搬出到片劑印刷裝置1的外部。In addition, as shown in FIG. 1 , the
印刷部20是以噴墨方式對由搬運帶12搬運的片劑9的表面記錄圖像的部位。如圖1所示,本實施方式的印刷部20具有四個噴頭21。四個噴頭21位於搬運帶12的上方,沿片劑9的搬運方向配置成一行。四個噴頭21朝向片劑9的表面噴出相互不同的顏色的墨滴。四個噴頭21例如噴出青色、洋紅色、黃色、以及黑色的各色的墨滴。於是,藉由由該些各色所形成的單色圖像的重合,在片劑9的表面記錄多色圖像。再者,自各噴頭21噴出的墨水使用由日本藥典、食品衛生法等所認可的原料製造的可食性墨水。The
圖3是一個噴頭21的底視圖。在圖3中,用兩點鏈線表示搬運帶12及保持於搬運帶12的多個片劑9。如圖3中放大所示,在噴頭21的下表面設置有能夠噴出墨滴的多個噴嘴211。在本實施方式中,在噴頭21的下表面,沿搬運方向及寬度方向二維地排列有多個噴嘴211。各噴嘴211在寬度方向上錯開位置地排列。如此,若二維地配置多個噴嘴211,則能夠使各噴嘴211的寬度方向的位置相互接近。但是,多個噴嘴211亦可沿寬度方向排列成一行。FIG. 3 is a bottom view of a
自噴嘴211噴出墨滴的方式例如使用所謂的壓電方式,所述壓電方式藉由對壓電元件施加電壓而使其變形,從而對噴嘴211內的墨水加壓並使其噴出。但是,墨滴的噴出方式亦可為藉由對加熱器通電來使噴嘴211內的墨水加熱膨脹而將其噴出的所謂熱敏方式。As a method of ejecting ink droplets from the
乾燥機構30是使附著於片劑9表面的墨水乾燥的機構。乾燥機構30設置於搬運帶12的周圍的較印刷部20更靠搬運方向下游側的位置。乾燥機構30例如使用朝向由搬運帶12搬運的片劑9吹送加熱後的氣體(熱風)的熱風供給機構。附著於片劑9表面的墨水藉由熱風而乾燥,從而定影於片劑9的表面。The
控制部100對片劑印刷裝置1內的各部進行運行控制。圖4是表示控制部100與片劑印刷裝置1內的各部的連接的框圖。如圖4中概念性地所示,控制部100由包括中央處理單元(Central Processing Unit,CPU)等處理器101、隨機存取記憶體(Random Access Memory,RAM)等記憶體102、以及硬磁碟驅動機等儲存部103的電腦構成。在儲存部103內安裝有用於執行印刷處理的電腦程式P。The
另外,如圖4所示,控制部100分別與所述的搬運用馬達13、抽吸機構15、送風機構16、四個噴頭21、乾燥機構30、搬入機構51、及搬出機構52可通信地連接。另外,控制部100亦與後述的噴頭移動機構22、清洗單元24、擦除單元25及墨水供給機構70可通信地連接。控制部100將儲存於儲存部103的電腦程式P、資料暫時地讀取到記憶體102,基於所述電腦程式P,處理器101進行運算處理,藉此對所述的各部進行運行控制。藉此,進行對多個片劑9的印刷處理、或後述的維護處理。
In addition, as shown in FIG. 4 , the
<2.關於噴頭移動機構及蓋帽> <2. About the nozzle moving mechanism and cap>
接著,參照圖5及圖6對噴頭移動機構22及蓋帽23進行說明。圖5是自圖1中的空心箭頭的位置觀察的印刷部20的局部側視圖。圖6是蓋帽23的縱剖視圖。
Next, the
如圖5所示,該片劑印刷裝置1的內部空間被分為印刷區域A1及退避區域A2。印刷區域A1是藉由上述片劑搬運機構10搬運片劑9的同時對片劑9進行印刷的印刷空間。退避區域A2是在印刷前或印刷後使噴頭21退避及待機、且收容無需處於與片劑9相同的空間的設備的退避空間。
As shown in FIG. 5 , the internal space of the
在印刷區域A1與退避區域A2之間,設置有分隔兩個區域的隔壁60。隔壁60具有用以使噴頭21通過的開口61。開口61可一直打開,亦可安裝有在噴頭21通過時打開的擋板機構。
Between the printing area A1 and the retreat area A2, a
如上所述,印刷部20具有四個噴頭21。另外,如圖5所示,印刷部20針對每個噴頭21而具有噴頭移動機構22及蓋帽23。即,本實施方式的印刷部20具有四個噴頭21、與各噴頭21對應的四個噴頭移動機構22、及與各噴頭21對應的四個蓋帽23。
As described above, the
噴頭移動機構22是使噴頭21在印刷位置P1與待機位置P2之間移動的機構。本實施方式的噴頭移動機構22包括臂221及臂移動機構222。
The
臂221是在寬度方向上延伸的構件。噴頭21固定在臂221寬度方向一側的前端。臂移動機構222根據來自控制部100的指令,使臂221在上下方向及寬度方向上移動。藉此,臂221及噴頭21一體地在上下方向及寬度方向上移動。The
臂移動機構222例如藉由組合水平方向(寬度方向)的移動機構與上下方向的移動機構來實現。該些移動機構例如藉由將馬達的旋轉運動經由滾珠螺桿轉換為直線運動的機構、或線性馬達、氣缸等機構來實現。The
如圖5所示,噴頭移動機構22使噴頭21在印刷位置P1與待機位置P2之間、在上下方向及寬度方向上移動。噴頭21在印刷位置P1進行對片劑9的印刷。當噴頭21配置在印刷位置P1時,多個噴嘴211與由搬運帶12保持的片劑9相向。在待機位置P2,噴頭21的多個噴嘴211被蓋帽23覆蓋。As shown in FIG. 5 , the
待機位置P2是較印刷位置P1低的位置。因此,在使噴頭21自印刷位置P1移動至待機位置P2的情況下,噴頭移動機構22使噴頭21自印刷位置P1在寬度方向上移動至退避區域A2內並配置在中間位置P3後,下降到待機位置P2。The standby position P2 is a position lower than the printing position P1. Therefore, when the
在使噴頭21自待機位置P2移動至印刷位置P1的情況下,噴頭移動機構22使噴頭21按其相反順序移動。即,噴頭移動機構22在使噴頭21自待機位置P2上升到中間位置P3後,使噴頭21向印刷區域A1內在寬度方向上移動到印刷位置P1。When moving the
再者,中間位置P3可為較印刷位置P1高的位置。在此種情況下,噴頭移動機構22使噴頭21自印刷位置P1上升到與中間位置P3相同的高度,然後,在該高度處,在寬度方向上移動至退避區域A2內的中間位置P3。而且,然後,可使其下降到待機位置P2。Furthermore, the intermediate position P3 may be higher than the printing position P1. In this case, the
在此種情況下,在使噴頭21自待機位置P2移動至印刷位置P1時,噴頭移動機構22在使噴頭21自待機位置P2上升到中間位置P3之後,使噴頭21在寬度方向上移動至印刷區域A1內,然後,使噴頭21下降並配置於印刷位置P1。In this case, when moving the
蓋帽23是上表面打開的大致長方體狀的框體。蓋帽23固定在退避區域A2內的規定位置。蓋帽23覆蓋配置在待機位置P2的噴頭21的多個噴嘴211。如此,在不使用噴頭21的期間,藉由用蓋帽23覆蓋噴嘴211,可防止噴嘴211內的墨水乾燥。The
在本實施方式中,蓋帽23包括清洗單元24及擦除單元25。In this embodiment, the
清洗單元24是用於清洗噴頭21的多個噴嘴211的單元。如圖5及圖6所示,清洗單元24包括清洗噴嘴241及清洗液供給部242。The
清洗噴嘴241在蓋帽23的內部將自清洗液供給部242供給的清洗液噴向多個噴嘴211。具體而言,如圖6所示,清洗噴嘴241包括向上方噴出清洗液的多個噴出口240。藉由用清洗單元24清洗噴頭21的多個噴嘴211,可去除在印刷區域A1中附著在噴嘴211上的微粉等。再者,蓋帽23亦可不包括清洗單元24。The cleaning
擦除單元25是用於擦除包括多個噴嘴211的噴頭21的噴出面(下表面)的單元。擦除單元25包括刀片251及刀片移動機構252。The erasing
刀片251是用於擦去附著在噴頭21下表面的墨滴或清洗液的構件。刀片251例如使用由具有可撓性的橡膠等形成的板狀構件。再者,刀片251中,僅與噴頭21接觸的前端部250可由可撓性的構件形成。The
刀片移動機構252是使刀片251旋轉移動的機構。刀片移動機構252例如包括馬達等驅動源、及將馬達的旋轉運動傳遞給刀片251的動力傳遞機構。當使刀片移動機構252運行時,刀片251在圖6中實線所示的收納位置Q1與圖6中兩點鏈線所示的擦除位置Q2之間旋轉移動。The
當噴頭21配置在待機位置P2,多個噴嘴211被蓋帽23覆蓋時,刀片251配置在收納位置Q1。在收納位置Q1,刀片251整體被收納在蓋帽23的內部。When the
另一方面,當藉由刀片251擦除噴頭21下表面的墨滴或清洗液時,噴頭移動機構22使噴頭21上升到較待機位置P2高的擦除位置P4,使噴頭21的下表面離開蓋帽23。然後,使刀片251自收納位置Q1旋轉移動至擦除位置Q2。在擦除位置Q2,刀片251的前端部250與噴頭21的下表面接觸。然後,噴頭移動機構22使噴頭21在寬度方向上水平移動。藉此,噴頭21下表面的多個噴嘴211及其周圍所附著的墨滴或清洗液等被刀片251的前端部250擦除。On the other hand, when the ink droplets or cleaning liquid on the lower surface of the
再者,進行噴頭21下表面的擦除的擦除位置P4可為與中間位置P3相同的位置,亦可與中間位置P3不同。In addition, the erasing position P4 for erasing the lower surface of the
<3.關於墨水供給機構及噴頭的構成>
繼而,參照圖7對向噴頭21供給墨水的墨水供給機構70及噴頭21的構成進行說明。圖7是表示噴頭21及墨水供給機構70的構成的概略圖。如上所述,印刷部20具有四個噴頭21。印刷部20針對每個噴頭21具有向噴頭21供給墨水的墨水供給機構70。即,本實施方式的印刷部20更具有四個墨水供給機構70。<3. About the configuration of the ink supply mechanism and the head>
Next, the configuration of the
如圖7所示,墨水供給機構70分別包括墨水貯存部71、壓力調整機構72及配管73。As shown in FIG. 7 , the
墨水貯存部71是貯存用於供給至噴頭21的墨水的容器。墨水貯存部71包括用於檢測墨水貯存部71內的壓力的壓力感測器711。The
壓力調整機構72是用於調整墨水貯存部71內部的壓力的機構。藉由壓力調整機構72調整墨水貯存部71內的壓力,在墨水貯存部71與噴頭21連通時,壓力調整機構72可間接地調整噴頭21內的壓力。即,壓力調整機構72構成能夠調整噴頭21內的壓力的壓力調整部。The
在本實施方式中,墨水貯存部71是容量固定的罐。而且,壓力調整機構72藉由調整墨水貯存部71上部的氣體層的氣壓來調整墨水貯存部71內的壓力。但是,墨水貯存部71亦可為在柔性容器中填充了墨水的所謂的墨囊。在此種情況下,壓力調整機構72例如可藉由調整隔著作為墨囊的墨水貯存部71而自外部施加的壓力來調整墨水貯存部71內的壓力。In the present embodiment, the
配管73將墨水貯存部71的下端部與噴頭21的後述的墨水供給口81連通連接。於配管73上例如介插有控制配管73的連通的電磁閥731。在電磁閥731打開的狀態下,當墨水貯存部71內的壓力大於噴頭21內的壓力時,自墨水貯存部71向噴頭21供給墨水。再者,在配管73上亦可與電磁閥731一起或者代替電磁閥731而介插止回閥。另外,亦可在配管73上介插用於去除墨水內的固體成分或異物等的過濾器。The piping 73 communicates and connects the lower end portion of the
噴頭21分別包括:殼體80、設置在殼體80上的墨水供給口81、墨水貯存室82、多個獨立流路83、多個獨立墨水室84及多個噴嘴211。再者,在圖7中,為了方便,示出了各6個獨立流路83、獨立墨水室84及噴嘴211,但在實際的噴頭21上,設有多個噴嘴211、相同數量的獨立流路83及獨立墨水室84。The
墨水供給口81是將墨水貯存室82與外部連通的連通口。對墨水供給口81連接墨水供給機構70的配管73的下游側的端部。藉此,自墨水貯存部71經由配管73供給的墨水經由墨水供給口81首先貯存在墨水貯存室82內。The
墨水貯存室82暫時貯存用於向各獨立墨水室84供給的墨水。在墨水貯存室82的內部包括用於加熱墨水的加熱器821及檢測墨水的溫度的溫度感測器822。The
加熱器821是用於使噴頭21內的墨水升溫的加熱機構。控制部100基於溫度感測器822檢測到的墨水的溫度來控制加熱器821。藉此,加熱器821能夠使噴頭21內的墨水升溫至後述的第一溫度及第二溫度等溫度。即,加熱器821能夠將自多個噴嘴211噴出的墨水升溫至第一溫度及第二溫度。The
獨立流路83是將墨水貯存室82與各個獨立墨水室84相連的墨水流路。當獨立墨水室84內的壓力低於墨水貯存室82內的壓力時,經由獨立流路83自墨水貯存室82向該獨立墨水室84供給墨水。The
獨立墨水室84是針對每個噴嘴211設置的墨水的貯存部。向獨立墨水室84二次填充供給至噴頭21內的墨水。獨立墨水室84的下端部分別與噴嘴211連通。The
噴嘴211將獨立墨水室84與外部的空間連通。在不噴出墨水時,在噴嘴211的內部,墨水的液面形成彎月面。另外,噴嘴211的下端部露出殼體80的下表面而配置。The
在獨立墨水室84的壁面上分別配置有壓力產生元件841。壓力產生元件841是提高獨立墨水室84內部的壓力的致動器。本實施方式的噴頭21是所謂壓電方式的噴出噴頭。因此,本實施方式的壓力產生元件841使用壓電元件。當自控制部100向壓力產生元件841發送作為電訊號的噴出訊號時,壓力產生元件841變形,填充在獨立墨水室84內的墨水被加壓。然後,由於獨立墨水室84內的壓力升高,獨立墨水室84內的墨水自噴嘴211以液滴的形式噴出。再者,噴頭21不限於壓電方式,亦可以為其他方式的噴出噴頭。
<4.關於印刷步驟及恢復步驟中的噴頭內的溫度管理>
繼而,參照圖8及圖9說明片劑印刷裝置1中的印刷步驟開始前及恢復步驟中的噴頭21內的溫度管理。圖8是表示印刷步驟開始前的噴頭21內的溫度管理流程的流程圖。圖9是表示恢復步驟的流程的流程圖。<4. About the temperature management in the print head in the printing step and the recovery step>
Next, the temperature management in the
控制部100能夠使片劑印刷裝置1至少執行印刷步驟及恢復步驟。在印刷步驟中,控制部100一邊使片劑搬運機構10搬運片劑9,一邊自一部分噴嘴211對片劑9的表面噴出第一溫度的墨水。藉此,對片劑9的表面進行印刷處理。另一方面,在恢復步驟中,控制部100提高噴頭21內的壓力,將全部的噴嘴211作為噴出對象,噴出第二溫度的墨水。即,在恢復步驟中,控制部100實施被稱為所謂清除處理的維護方法。控制部100除了印刷步驟及恢復步驟以外,亦能夠執行例如清洗噴頭21的下表面的清洗步驟等其他步驟。The
首先,參照圖8說明印刷步驟開始前的噴頭21內的溫度管理流程。如圖8所示,在印刷步驟開始時,首先,並行進行包括步驟S111、步驟S112及步驟S113的印刷前升溫步驟、及包括步驟S121及步驟S122的印刷前移動步驟。First, the flow of temperature management in the
在印刷前升溫步驟(步驟(step)S111~步驟S113)中,首先,控制部100驅動加熱器821,開始噴頭21內的墨水向第一溫度的升溫(步驟S111)。然後,當開始升溫時,控制部100監視溫度感測器822檢測到的墨水的溫度是否達到了第一溫度(步驟S112)。In the pre-printing temperature rise step (step S111 to step S113 ), first, the
在步驟S112中,在控制部100判斷為墨水的溫度未達到第一溫度的情況下(步驟S112/否(No)),返回到步驟S112進行待機。在步驟S112中,當判斷為墨水的溫度達到了第一溫度時(步驟S112/是(Yes)),控制部100開始加熱器821的回饋控制,以將噴頭21內的墨水溫度維持在第一溫度(步驟S113)。In step S112 , when the
另一方面,在印刷前移動步驟(步驟S121~步驟S122)中,首先,控制部100使噴頭移動機構22運行,使噴頭21向印刷位置P1移動(步驟S121)。然後,在移動開始後,控制部100監視噴頭21是否到達了印刷位置P1(步驟S122)。在步驟S122中,控制部100在判斷為噴頭21未到達印刷位置P1的情況下(步驟S122/否),返回到步驟S122。On the other hand, in the pre-printing moving step (step S121 to step S122 ), first, the
若控制部100在步驟S113中開始回饋控制,並且在步驟S122中判斷為噴頭21到達了印刷位置P1(步驟S122/是(Yes)),則進入步驟S13,開始印刷步驟(步驟S13)。When the
此處,第一溫度是印刷步驟中的噴頭21內的墨水的溫度。在印刷步驟中,噴頭21內的墨水的溫度藉由回饋控制保持在第一溫度。因此,在印刷步驟中,控制部100自噴頭21的一部分噴嘴211對片劑9的表面噴出第一溫度的墨水。Here, the first temperature is the temperature of the ink in the
繼而,參照圖9說明恢復步驟的流程。如圖9所示,若開始恢復步驟,首先,並行進行包括步驟S211及步驟S212的清除前升溫步驟、及包括步驟S221及步驟S222的清除前移動步驟。Next, the flow of the recovery procedure will be described with reference to FIG. 9 . As shown in FIG. 9 , when the recovery step is started, first, the pre-clearing heating step including steps S211 and S212 and the pre-clearing moving step including steps S221 and S222 are performed in parallel.
在清除前升溫步驟(步驟S211~步驟S212)中,藉由加熱器821將噴頭21內的墨水升溫至較第一溫度高的第二溫度。首先,控制部100驅動加熱器821,開始噴頭21內的墨水向第二溫度的升溫(步驟S211)。然後,當開始升溫時,控制部100監視溫度感測器822檢測到的墨水的溫度是否達到了第二溫度(步驟S212)。In the pre-cleaning temperature raising step (step S211 to step S212 ), the ink in the
在步驟S212中,在控制部100判斷為墨水的溫度未達到第二溫度的情況下(步驟S212/否(No)),返回到步驟S212進行待機。In step S212 , when the
另一方面,在清除前移動步驟(步驟S221~步驟S222)中,首先,控制部100使噴頭移動機構22運行,使噴頭21向待機位置P2移動(步驟S221)。然後,在移動開始後,控制部100監視噴頭21是否到達待機位置P2(步驟S222)。在步驟S222中,在控制部100判斷為噴頭21未到達待機位置P2的情況下(步驟S222/否(No)),返回到步驟S222。On the other hand, in the moving step before erasing (step S221 to step S222 ), first, the
當控制部100在步驟S212中判斷為墨水的溫度達到了第二溫度(步驟S212/是),並且在步驟S222中判斷為噴頭21到達待機位置P2時(步驟S222/是),進入步驟S23。然後,控制部100停止加熱器821對噴頭21內的墨水的升溫(步驟S23)。即,控制部100確認噴頭21內的墨水的溫度達到了第二溫度而停止墨水的升溫。When the
再者,在步驟S212中判斷為墨水的溫度達到了第二溫度(步驟S212/是)的時刻,在步驟S222中還未判斷為噴頭21到達待機位置P2的情況下,控制部100可進行加熱器821的回饋控制以將噴頭21內的墨水溫度保持在第二溫度。Furthermore, when it is determined in step S212 that the temperature of the ink has reached the second temperature (step S212/Yes), and if it is not determined in step S222 that the
在停止加熱器821對墨水的升溫後,控制部100提高噴頭21內的壓力,將全部的噴嘴211作為對象而噴出墨水(步驟S24)。After the temperature increase of the ink by the
作為在步驟S24中控制部100進行的具體程序,例如,首先關閉電磁閥731,切斷墨水貯存部71與噴頭21的連通。然後,藉由壓力調整機構72提高墨水貯存部71內的壓力。其後,打開電磁閥731,藉此噴頭21內的壓力迅速升高。As a specific procedure performed by the
在步驟S24中,藉由噴頭21內的壓力升高,第二溫度的墨水自噴嘴211噴出。此時,在步驟S24中噴出的墨水的量較一般的清除處理中噴出的墨水的量少。因此,在步驟S24中噴出的墨水滯留在噴頭21的下表面。In step S24 , the ink of the second temperature is ejected from the
如此,在步驟S24中,在待機位置P2進行清除處理。即,待機位置P2是進行清除步驟的維護位置。另外,藉由並行進行步驟S211~步驟S212及步驟S221~步驟S222,在清除步驟之前,進行一邊使噴頭21自印刷位置P1移動至作為維護位置的待機位置P2,一邊使噴頭21內的墨水的溫度升溫到第二溫度的步驟。In this manner, in step S24, the clearing process is performed at the standby position P2. That is, the standby position P2 is a maintenance position where the cleaning step is performed. In addition, by performing steps S211 to S212 and steps S221 to S222 in parallel, before the cleaning step, the ink in the
在步驟S24之後,控制部100藉由擦除單元25擦除噴頭21的下表面(步驟S25)。具體而言,在藉由噴頭移動機構22使噴頭21移動至擦除位置P4之後,藉由刀片移動機構252,將刀片251配置在擦除位置Q2。然後,藉由噴頭移動機構22使噴頭21在寬度方向上移動,刀片251與噴頭21的下表面接觸,擦去滯留在噴頭21的下表面的墨水。After step S24, the
再者,在步驟S24中,噴頭21亦可配置在擦除位置P4。在此種情況下,在清除前移動步驟(步驟S221~步驟S222)中,噴頭21配置在擦除位置P4而非待機位置P2。即,進行清除步驟的維護位置成為擦除位置P4。Furthermore, in step S24, the
步驟S25的擦除步驟完成後,噴頭21的恢復步驟完成。 之後,在進行印刷步驟的情況下,噴頭21配置在印刷位置P1。另外,在其後不進行印刷步驟的情況下,噴頭21配置在待機位置P2。After the erasing step of step S25 is completed, the restoring step of the
如上所述,在該片劑印刷裝置1中,在恢復步驟中自噴嘴211噴出的墨水的溫度(第二溫度)是較在印刷步驟中自噴嘴211噴出的墨水的溫度(第一溫度)高的溫度。As described above, in the
在使用頻率低的噴嘴211中,由於溶媒自墨水表面蒸發、噴嘴211內的墨水無流動,從而產生彎月面的上升、墨水成分的凝聚及墨水成分的濃縮等,墨水的流動性降低,噴嘴211內的壓損增大。In the
因此,在恢復步驟中,將噴頭21內的墨水溫度設為較印刷步驟中的墨水溫度即第一溫度高的第二溫度。第二溫度的墨水與第一溫度的墨水相比黏度低。因此,在進行清除處理時,能夠降低墨水的黏度,提高墨水的流動性,從而降低噴嘴211內的壓損。藉此,即使在清除處理中噴出的墨水的量較通常的清除處理少的情況下,亦能夠消除噴嘴211內的墨水堵塞。Therefore, in the recovery step, the temperature of the ink in the
即,在恢復步驟中,使墨水的溫度與印刷步驟相比變高,能夠抑制恢復步驟中的墨水的消耗量。That is, in the recovery step, the temperature of the ink is made higher than that in the printing step, and the consumption of the ink in the recovery step can be suppressed.
在本實施方式中,第一溫度為32℃左右,第二溫度為40℃左右。第二溫度較佳為以2℃(含)以上且15℃(含)以下的差值較第一溫度更高的溫度。In this embodiment, the first temperature is about 32°C, and the second temperature is about 40°C. The second temperature is preferably a temperature higher than the first temperature by a difference between 2°C (inclusive) and 15°C (inclusive).
若墨水的溫度以2℃(含)以上的差值變高,則墨水的黏度下降到噴出狀況發生變化的程度。因此,第二溫度較佳為較第一溫度高至少2℃(含)以上的差值。另一方面,若過度升高第二溫度,則在恢復步驟後,噴頭21內的溫度有可能不會下降至第一溫度。若如此,則需要設置用以在恢復步驟後、印刷步驟前使噴頭21內的墨水降溫的冷卻期間,或者設置降溫機構。因此,第一溫度與第二溫度之差較佳為15℃(含)以下。When the temperature of the ink increases by a difference of 2°C (inclusive) or more, the viscosity of the ink decreases to such an extent that the discharge conditions change. Therefore, the second temperature is preferably higher than the first temperature by a difference of at least 2°C (inclusive). On the other hand, if the second temperature is raised too much, there is a possibility that the temperature in the
此處,圖10是示出在本實施方式中使用的可食性墨水的溫度與黏度的關係的圖。在圖10中,橫軸是溫度[℃],縱軸是墨水的黏度[mPa·s]。再者,用於測量圖10的墨水的黏度的測定器是博勒飛(BROOKFIELD)製造的黏度計(VISCOMETER)DV-IIPro。Here, FIG. 10 is a graph showing the relationship between the temperature and the viscosity of the edible ink used in the present embodiment. In FIG. 10 , the horizontal axis is the temperature [° C.], and the vertical axis is the ink viscosity [mPa·s]. In addition, the measuring apparatus for measuring the viscosity of the ink of FIG. 10 is a viscometer (VISCOMETER) DV-IIPro by Brookfield.
在本實施方式的片劑印刷裝置1中,適合印刷步驟的墨水的黏度為3.9 mPa·s±0.2 mPa·s。因此,第一溫度設為32℃左右。與此相對,在清除步驟中,與印刷步驟相比黏度較佳設為低約20%的3.2 mPa·s±0.2 mPa·s。因此,第二溫度設為40℃左右。In the
具體而言,在本實施方式中,在清除處理中噴出的墨水為不自噴頭21滴落而滯留在噴頭21的下表面的程度的少量。例如,在具有與通常在清除處理中噴出60 cc程度墨水的先前的印刷裝置相同規模的噴頭21的片劑印刷裝置1中,可將步驟S24的清除步驟的墨水的噴出量設為1 cc程度。Specifically, in the present embodiment, the ink ejected in the cleaning process is such a small amount that it does not drip from the
<5.變形例> 以上,說明了本發明的主要實施方式,但本發明不限於上述實施方式。<5. Modifications> As mentioned above, although the main embodiment of this invention was described, this invention is not limited to the said embodiment.
在上述實施方式中,蓋帽23的位置被固定,藉由噴頭21下降,用蓋帽23覆蓋噴頭21的下表面。但是,亦可在蓋帽23上設置上下移動機構,藉由使蓋帽23上升來用蓋帽23覆蓋噴頭21的下表面。In the above-described embodiment, the position of the
另外,在上述實施方式中,在印刷部20設有四個噴頭21。但是,印刷部20所包含的噴頭21的數量可為1~3個,亦可多於4個。In addition, in the above-mentioned embodiment, the four
另外,在上述實施方式中,為在一個噴頭21中具有一個墨水貯存室與多個獨立墨水室84的兩級結構,但本發明不限於此。例如,亦可為在一個噴頭中設置有共用墨水流路、自共用墨水流路供給墨水的多個墨水貯存室、及與墨水貯存室分別連通的多個獨立墨水室的三級結構。另外,噴頭亦可為其他結構。In addition, in the above-described embodiment, a two-stage structure including one ink storage chamber and a plurality of
另外,在上述實施方式中,在搬運方向的相同位置噴出同一種類墨水的噴頭21為一個,但本發明不限於此。亦可組合多個噴頭而構成在搬運方向上的相同位置噴出同一種類墨水的噴頭單元。In addition, in the above-described embodiment, there is only one
另外,上述實施方式的片劑印刷裝置1包括一個在片劑9的表面進行印刷的印刷部,但本發明不限於此。片劑印刷裝置亦可包括在片劑的其中一側的面上進行印刷的印刷部、及在片劑的另一側的面(背面)上進行印刷的印刷部這兩個印刷部。In addition, although the
另外,本發明中作為處理對象的「片劑」例如包括裸片、口腔內崩解片(口腔崩解(Orally Disintegrating,OD)片)、薄膜包衣片(FC(Film Coating)片)、糖衣片、分割線片等,但未必限定於作為醫藥品的片劑。本發明的片劑印刷裝置亦可對作為健康食品的片劑、或汽水糖等片糖進行印刷。In addition, the "tablet" to be treated in the present invention includes, for example, a bare tablet, an orally disintegrating tablet (orally disintegrating (OD) tablet), a film-coated tablet (FC (Film Coating) tablet), a sugar-coated tablet Tablets, split line tablets, etc., but are not necessarily limited to tablets as pharmaceuticals. The tablet printing apparatus of the present invention can also print tablets, which are health foods, or candies such as soft drinks.
另外,對於片劑印刷裝置1的細節部分的構成可與本申請案的各圖不同。另外,在不產生矛盾的範圍內,亦可適當組合所述實施方式或變形例中出現的各要素。In addition, the configuration of the detailed portion of the
1:片劑印刷裝置 9:片劑 10:片劑搬運機構 11:帶輪 12:搬運帶 13:搬運用馬達 14:吸附孔 15:抽吸機構 16:送風機構 20:印刷部 21:噴頭 21:噴頭 22:噴頭移動機構 23:蓋帽 24:清洗單元 25:擦除單元 30:乾燥機構 51:搬入機構 52:搬出機構 60:隔壁 61:開口 70:墨水供給機構 71:墨水貯存部 72:壓力調整機構 73:配管 80:殼體 81:墨水供給口 82:墨水貯存室 83:獨立流路 84:獨立墨水室 100:控制部 101:處理器 102:記憶體 103:儲存部 211:噴嘴 221:臂 222:臂移動機構 240:噴出口 241:清洗噴嘴 242:清洗液供給部 250:前端部 251:刀片 252:刀片移動機構 711:壓力感測器 731:電磁閥 821:加熱器 822:溫度感測器 841:壓力產生元件 A1:印刷區域 A2:退避區域 P:電腦程式 P1:印刷位置 P2:待機位置 P3:中間位置 P4:擦除位置 Q1:收納位置 Q2:擦除位置 S13、S23、S24、S25、S111、S112、S113、S121、S122、S211、S212、S221、S222:步驟1: tablet printing device 9: Tablets 10: Tablet handling mechanism 11: Pulley 12: carrying belt 13: Motor for transport 14: adsorption hole 15: Suction mechanism 16: Air supply mechanism 20: Printing Department 21: Nozzle 21: Nozzle 22: Nozzle moving mechanism 23: Caps 24: Cleaning unit 25: Erase unit 30: Drying mechanism 51: Move In Agency 52: Moving out of the agency 60: Next door 61: Opening 70: Ink supply mechanism 71: Ink storage part 72: Pressure adjustment mechanism 73: Piping 80: Shell 81: Ink supply port 82: Ink storage room 83: Independent flow path 84: Independent Ink Room 100: Control Department 101: Processor 102: Memory 103: Storage Department 211: Nozzle 221: Arm 222: Arm moving mechanism 240: spout 241: Cleaning Nozzle 242: Cleaning fluid supply part 250: front end 251: Blade 252: Blade moving mechanism 711: Pressure Sensor 731: Solenoid valve 821: Heater 822: Temperature sensor 841: Pressure generating element A1: Printing area A2: Back off area P: computer program P1: Printing position P2: Standby position P3: middle position P4: Erase position Q1: Storage location Q2: Erase location S13, S23, S24, S25, S111, S112, S113, S121, S122, S211, S212, S221, S222: Steps
圖1是表示片劑印刷裝置的構成的圖。 圖2是片劑搬運機構的局部立體圖。 圖3是噴頭的底視圖。 圖4是表示控制部與片劑印刷裝置內的各部的連接的框圖。 圖5是印刷部的局部側視圖。 圖6是蓋帽的縱剖視圖。 圖7是表示噴頭及墨水供給機構的構成的概略圖。 圖8是表示印刷步驟開始前的噴頭內的溫度管理的流程的流程圖。 圖9是表示恢復步驟的流程的流程圖。 圖10是表示墨水的溫度與黏度的關係的圖。FIG. 1 is a diagram showing the configuration of a tablet printing apparatus. Fig. 2 is a partial perspective view of the tablet conveying mechanism. Figure 3 is a bottom view of the spray head. FIG. 4 is a block diagram showing the connection between the control unit and each unit in the tablet printing apparatus. FIG. 5 is a partial side view of the printing unit. Fig. 6 is a longitudinal sectional view of the cap. FIG. 7 is a schematic diagram showing the configuration of a head and an ink supply mechanism. FIG. 8 is a flowchart showing the flow of temperature management in the head before the start of the printing step. FIG. 9 is a flowchart showing the flow of the recovery procedure. FIG. 10 is a graph showing the relationship between the temperature and the viscosity of ink.
S211、S212、S221、S222、S23、S24、S25:步驟S211, S212, S221, S222, S23, S24, S25: Steps
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JP6897186B2 (en) | 2017-03-15 | 2021-06-30 | コニカミノルタ株式会社 | Inkjet recording device |
KR102068003B1 (en) * | 2018-05-24 | 2020-01-20 | 주식회사 탑 엔지니어링 | Inkjet type liquid dispensing module |
-
2020
- 2020-02-06 JP JP2020018927A patent/JP7389672B2/en active Active
-
2021
- 2021-01-14 TW TW110101487A patent/TWI761036B/en active
- 2021-01-25 KR KR1020210010099A patent/KR102418940B1/en active IP Right Grant
- 2021-02-05 CN CN202110164802.6A patent/CN113211996B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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TW200909223A (en) * | 2006-10-26 | 2009-03-01 | Seiko Epson Corp | Method for controlling droplet discharge head, drawing method, and droplet discharge device |
TW201806677A (en) * | 2016-08-22 | 2018-03-01 | 住友重機械工業股份有限公司 | Inkjet device, and method for cleaning inkjet device |
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CN113211996B (en) | 2022-10-28 |
JP7389672B2 (en) | 2023-11-30 |
TW202130521A (en) | 2021-08-16 |
KR102418940B1 (en) | 2022-07-07 |
JP2021122558A (en) | 2021-08-30 |
CN113211996A (en) | 2021-08-06 |
KR20210100533A (en) | 2021-08-17 |
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