JP4311824B2 - Paste container for bookbinding equipment - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、製本装置に使用する糊を加熱貯留する糊容器に関するものである。
【０００２】
【従来の技術】
丁合機などにより折丁をページ順に集めて作成した本身（冊子）の背面に糊付けし、糊付けした冊子の背面に適宜表紙などを貼り付けて綴じるいわゆる無線綴じを行なう製本装置は良く知られている。このような製本装置は、一般に、冊子の背面を面一に揃えるミーリング部、ミーリング後の冊子の背面に糊付けする糊付け部、糊付け後の冊子の背面に表紙を貼り付ける表紙貼り付部などの製本処理部と製本処理部を巡回移動するクランプとを備え、製本処理する冊子をこのクランプに挟持してクランプの移動に連れて製本するように構成されている。
【０００３】
そして製本装置で使用される糊は、高速接着が要求されることから一般にホットメルト形の接着剤（糊）が使用されている。この糊を使用する製本装置の糊付け部には、糊を貯留する容器と、容器内の糊を熱融解させて液状にするための加熱ヒーターと、下部が容器内の糊に浸されたローラとからなる背糊付け装置が設置され、冊子の背面の糊付け時にはローラを回転させローラの表面に付着している液状の糊を冊子の背面に塗布する。
【０００４】
【発明が解決しようとする課題】
ところで、冊子の背面の糊付けには、最初に浸透性の良い糊を塗布し、ついでその糊付け部の強度を高める糊を塗布するという、性質の異なる２種類の糊付けを行なう場合がある。この場合、前記のような背糊付け装置の２つを並べて配置し、その一方の背糊付け装置の容器に浸透性の良い糊を、他方の背糊付け装置の容器に強度を高める糊を入れて各糊の融解温度に応じた温度に加熱するようにすればよい。しかし背糊付け装置を２つ並べるには、その分のスペースが必要となり、小型の製本装置ではこれを設置することができず、性質の異なる２種類の糊付けを行なうことができないという問題がある。
【０００５】
本発明は、このような問題に鑑みなされたもので、小型の製本装置においても性質の異なる２種類の糊付けを可能にする製本装置用糊容器を提供することを目的とする。
【０００６】
【課題を解決するための手段】
請求項１に係る発明は、回転するローラに付着して冊子の背面に塗布する糊を加熱貯留する製本装置用糊容器において、前記容器の底板に、前記底板を２つに分断する切り溝を形成し、前記切り溝の両側の縁のそれぞれに、前記容器の底板から該容器の側壁の高さに延びる仕切り板を設けて前記容器内を、前記切り溝を隔てて２つの分室に分け、前記仕切り板により分けられた２つの分室のそれぞれに各分室内に貯留する糊を加熱するヒーターを設け、前記２つの分室のそれぞれに前記ローラを配置可能としてなることを特徴とする。
【０００７】
請求項２に係る発明は、請求項１に係る発明における仕切り板を、上端部を閉塞した略逆Ｕ字状に形成し前記Ｕ字状の開口端縁を前記切り溝の縁に沿わせてなることを特徴とし、請求項３に係る本発明は、請求項１又は請求項２に係る発明の仕切り板に、各分室の糊が互いに通流する貫通路を設け、前記貫通路に前記貫通路を開閉する開閉弁を設けてなることを特徴とする。
【０００８】
本発明では、糊を収納する容器の内部を、底板を２つに分断する切り溝を形成し、この切り溝の縁に沿って立ち上がる仕切り板により２つに分け、各分室のそれぞれにヒーターを設け、各分室のそれぞれにローラを配置可能としているので、２種類の糊付けを行なう場合には、各分室のそれぞれにローラを配置し、各分室ごとに種類の異なる糊を注入し、それぞれその糊の融解温度に応じた温度に維持して行なう。
【０００９】
この場合、底板を２つに分断した切り溝に沿って立ち上がる仕切り板で仕切っているので、２つに分けた各分室間の熱伝導を低くすることが、例えば仕切り板を略逆Ｕ字状に形成する（請求項２）などによりでき、各分室に貯留する糊の温度を、それぞれその糊の融解温度に応じた温度に維持することができる。加熱に要するエネルギーを低減することができ、かつ背糊付け装置が小型でありながら性質の異なる２種類の糊付けを行なうことができる。
【００１０】
また、仕切り板に、各分室の糊が互いに通流する貫通路を設け、その貫通路に開閉弁を設けると、１種類の糊付けに際し開閉弁を開いておくことにより、一方の分室に糊を注入するだけで両分室に糊が注入され、２種類の糊付けが可能であるにもかかわらず、１種類の背糊付け装置と同様の糊の注入作業やそのための装置で済み、この場合、貯留する糊の容量が増大し糊を補給する頻度を低減することができる。
【００１１】
【発明の実施の形態】
以下、本発明の実施の形態について、図を参照して説明する。図１は本発明の実施の形態に係る製本用背糊付け装置の構成を示す平面図、図２は図１のＡーＡ断面図、図３は開閉弁の構造の一例を示す要部の斜視図、図４は開閉弁の構造の他の例を示す要部の斜視図である。
【００１２】
図において、１は糊を貯留する容器、２及び３は分室、４及び５は糊塗布用のローラ、６及び７はヒータ、８は仕切り板、９は切り溝、１０は貫通路、１１は開閉弁である。
【００１３】
容器１は概略直方体状の箱体をなし、底板１ｃに、長手方向ほぼ中央部で相対向する側壁１ａ、１ｂ間にまたがり、底板１ｃを２つに分断する切り溝９が形成され、端縁がその切り溝９の縁に沿って底板１ｃから起立する略逆Ｕ字状の仕切り板８が形成され、この仕切り板８で容器１の糊貯留部を２つの分室２および３に分けている。そして底板１ｃの各分室２および３のそれぞれに対応する位置にヒータ６および７がＵ字状に折り曲げて埋め込まれている。なお、ヒータ６および７は棒状または板状であってよく、底板１ｃの外側に設置してもよい。
【００１４】
仕切り板８は、容器１と一体に成形され、その高さは容器１の周囲側壁と同等にされており、仕切り板８の逆Ｕ字状の窪みの空間と底板１ｃの切り溝９とによって分室２および３の熱が互いに伝達することを抑制している。この抑制により各分室２および３に貯留する糊１３ａおよび１３ｂを異なる温度に維持することが可能になる。
【００１５】
仕切り板８の途中には、各分室２、３に収納された糊が自由に往来することのできる貫通路１０が形成され、この貫通路に、この貫通路を閉塞または開放する開閉弁１１が設けられている。なお、この実施の形態では貫通路１０は凹溝で形成されているが、貫通孔であってもよい。
【００１６】
開閉弁１１は、図３に示すように、板状の弁１１からなり、仕切り板８の貫通路１０を形成している互いに対向する壁面に形成された矩形状の凹溝８ｂに上下方向摺動自在に嵌め込まれており、上方に摺動移動させることにより各分室２、３に収納された糊が自由に往来し、下方に摺動移動させて底部に当接させると各分室２、３に収納された糊はその独立性が確保される。なお、この開閉弁は、図４に示すように、貫通孔１２ａまたは貫通凹部を形成した円柱状の弁１２に形成し、仕切り部８の貫通路１０を形成している互いに対向する壁面の円弧状の凹部に回動自在に嵌め込むようにしてもよい。この場合、貫通路１０の開閉は弁１２を回動して行なう。
【００１７】
以上のように構成された製本用背糊付け装置で糊付けする場合、性質の異なる２種類の糊付けを行なうときには、貫通路１０を開閉弁１１（又は１２）を操作して閉塞し、各分室２、３のそれぞれに回転駆動軸４ａおよび５ａに支持されたローラ４および５を配置し、分室２に異種の糊の一方の糊１３ａを、分室３に他方の糊１３ｂを注入し、それぞれの糊１３ａ、１３ｂをそれぞれの融解温度に加熱し、加熱した液状の糊を回転するローラ４および５に付着させて冊子の背面に塗布する。
【００１８】
また、１種類の糊付けを行なうときには、貫通路１０を開閉弁１１（又は１２）を操作して開放しておき、分室２、３のいずれかに回転駆動軸４ａまたは５ａに支持されたローラ４または５を配置し、分室２または分室３のいずれかに糊を注入する。注入した糊は、貫通路１０を介して各分室２および３の両者に分かれて注入され、両分室２、３に貯留した糊を用いてローラで塗布する。糊の補給は分室２、３のいずれかに行なうことによりでき、補給のための作業および装置を簡単にすることができる。
【００１９】
なお、１種類の糊付けを行なうときに開閉弁１１を開放することや分室の一方にローラを配置することは、任意であって開閉弁１１を開放して両分室２、３のそれぞれにローラを配置してもよく、開閉弁１１を閉塞して一方の分室２または３を使用するようにしてもよい。前者の場合には糊の補給時において、一方の分室２または３に補給すれば足り、補給のための作業および装置を簡単にすることができ、また、後者の場合には、少数の冊子の糊付け時の糊の有効利用が図れる。
【００２０】
なお、以上の実施の形態では、仕切り板８を容器１の作成時に鋳型などで一体成形しているが、仕切り板は容器と別体に形成し、容器に形成した切り溝に沿って液密に固着するようにしてもよい。この場合、仕切り板に断熱性の高い部材を使用すると仕切り板を逆Ｕ字状に形成しなくてもよい。
【００２１】
【発明の効果】
以上詳述したように、本発明によれば、製本装置に使用する糊を加熱貯留する容器の内部を仕切り板により２つに分け、２つに分けた分室のそれぞれにヒーターを設け、各分室のそれぞれにローラを配置可能として構成しているので、性質の異なる２種類の糊付けを行なうことができ、かつこの場合の糊付け装置を小型化することができ、小型の製本装置においても性質の異なる２種類の糊付けが可能となる。また、底板を２つに分断した切り溝に沿って立ち上がる仕切り板で仕切っているので、２つに分けた各分室間の熱伝導を低くすることができ、各分室に貯留する糊の温度を、それぞれその糊の融解温度に応じた温度に維持することができる。これにより、必要以上の加熱をなくすことができ加熱に要するエネルギーを低減することができる。
【００２２】
また、仕切り板を略逆Ｕ字状に形成すると、底板を伝導する熱の伝導距離が長くなり、かつＵ字状の窪みによって断熱効果が高められ、各分室間の熱伝導をより低くするとともに、容器の成形時に一体的に成形でき、仕切り板を容易に形成することができる。さらに、仕切り板に各分室の糊が互いに通流する貫通路を設け、その貫通路に開閉弁を設けることにより、１種類の糊付けに際し開閉弁の開閉操作によって、いずれか一方の分室を背糊付けに利用しすることにより、糊の有効利用やエネルギーの低減が図れ、また両分室を利用すると多数の冊子の背糊付けに対して糊を補給する頻度を低減することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る製本用背糊付け装置の構成を示す平面図である。
【図２】図１のＡーＡ断面図である。
【図３】開閉弁の構造の一例を示す要部の斜視図である。
【図４】開閉弁の構造の他の例を示す要部の斜視図である。
【符号の説明】
１ 糊貯留容器
１ａ 容器底板
２、３ 分室
４、５ 糊塗布用のローラ
６、７ ヒータ
８ 仕切り板
９ 切り溝
１０ 貫通路
１１、１２ 開閉弁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paste container that heats and stores paste used in a bookbinding apparatus.
[0002]
[Prior art]
A well-known bookbinding device that performs so-called wireless binding is a well-known technique in which signatures are collected in page order by a collating machine and glued to the back of the body (booklet), and a cover is attached to the back of the glued booklet. Yes. Such bookbinding devices generally include bookbinding, such as a milling unit that aligns the back of the booklet to the same level, a glued part that glues the back of the booklet after milling, and a cover pasting unit that attaches a cover to the back of the booklet after gluing. A processing unit and a clamp that moves around the bookbinding processing unit are provided, and a booklet for bookbinding processing is sandwiched between the clamps and bookbinding is performed as the clamp moves.
[0003]
Since the glue used in the bookbinding apparatus requires high-speed adhesion, a hot-melt adhesive (glue) is generally used. The gluing section of the bookbinding apparatus that uses the glue includes a container for storing the glue, a heater for thermally melting the glue in the container to form a liquid, and a roller having a lower part immersed in the glue in the container. A back gluing device is installed, and when gluing the back of the booklet, the roller is rotated to apply the liquid glue adhering to the surface of the roller to the back of the booklet.
[0004]
[Problems to be solved by the invention]
By the way, for the pasting of the back of the booklet, there are cases where two kinds of pasting with different properties are performed, in which a paste having good permeability is first applied and then a paste for increasing the strength of the pasting portion is applied. In this case, two back gluing devices such as those described above are arranged side by side, a paste having good permeability is placed in the container of one back gluing device, and a paste for increasing the strength is put in the container of the other back gluing device. What is necessary is just to make it heat to the temperature according to the melting temperature of glue. However, in order to arrange two back gluing apparatuses, it is necessary to have a space for that, and a small bookbinding apparatus cannot be installed, and there is a problem that two types of gluing having different properties cannot be performed.
[0005]
The present invention has been made in view of such problems, and an object of the present invention is to provide a glue container for a bookbinding apparatus that enables two types of gluing with different properties even in a small bookbinding apparatus.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a paste container for a bookbinding apparatus that heats and stores glue applied to a rotating roller and applied to the back side of a booklet, and a groove for dividing the bottom plate into two is formed in the bottom plate of the container. Forming a partition plate extending from the bottom plate of the container to the height of the side wall of the container at each of the edges on both sides of the kerf, and dividing the inside of the container into two compartments across the kerf , Each of the two compartments divided by the partition plate is provided with a heater for heating glue stored in each compartment, and the roller can be arranged in each of the two compartments.
[0007]
The engagement Ru inventions in claim 2, the partition plate in engagement Ru inventions in claim 1, the edges of the kerfs the U-shaped opening edge is formed in a substantially inverted U-shape which closes the upper end According to a third aspect of the present invention, the partition plate according to the first or second aspect of the present invention is provided with a through passage through which the glue of each compartment flows, An opening / closing valve for opening and closing the through passage is provided in the passage.
[0008]
In the present invention, the inside of the container for storing glue is divided into two by a partition plate that divides the bottom plate into two parts, and rises along the edge of the groove, and a heater is provided in each of the compartments. The roller can be placed in each of the compartments, so when two types of gluing are performed, a roller is placed in each of the compartments and different types of glue are injected into each of the compartments. The temperature is maintained according to the melting temperature.
[0009]
In this case, since the bottom plate is partitioned by a partition plate that rises along a cut groove that is divided into two, it is possible to reduce the heat conduction between each of the two divided chambers. The temperature of the paste stored in each compartment can be maintained at a temperature corresponding to the melting temperature of the paste. Energy required for heating can be reduced, and two types of gluing with different properties can be performed while the back gluing device is small.
[0010]
In addition, if the partition plate is provided with a through-passage through which the glue in each compartment flows, and an on-off valve is provided in the through-passage, the glue is applied to one of the compartments by opening the on-off valve for one type of gluing. Adhesive is injected into both compartments simply by injecting, and even though two types of gluing are possible, the same type of gluing operation as that of one type of back gluing device and a device for it can be used. The capacity of the paste is increased and the frequency of supplying the paste can be reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the configuration of a book binding back gluing device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. FIGS. 4A and 4B are perspective views of the main part showing another example of the structure of the on-off valve.
[0012]
In the figure, 1 is a container for storing glue, 2 and 3 are compartments, 4 and 5 are rollers for applying glue, 6 and 7 are heaters, 8 is a partition plate, 9 is a cut groove, 10 is a through passage, 11 is Open / close valve.
[0013]
The container 1 has a substantially rectangular parallelepiped box shape, and a cut groove 9 is formed on the bottom plate 1c so as to straddle between the side walls 1a and 1b facing each other in the substantially central portion in the longitudinal direction and to divide the bottom plate 1c into two. Is formed with a substantially inverted U-shaped partition plate 8 rising from the bottom plate 1c along the edge of the cut groove 9, and the partition plate 8 divides the glue storage portion of the container 1 into two compartments 2 and 3. . Then, heaters 6 and 7 are embedded in a U-shape at positions corresponding to the respective compartments 2 and 3 of the bottom plate 1c. The heaters 6 and 7 may be rod-shaped or plate-shaped, and may be installed outside the bottom plate 1c.
[0014]
The partition plate 8 is formed integrally with the container 1 and has a height equal to that of the peripheral side wall of the container 1. The partition plate 8 is formed by the space of the inverted U-shaped depression of the partition plate 8 and the groove 9 of the bottom plate 1 c. The heat of the compartments 2 and 3 is suppressed from being transmitted to each other. This suppression makes it possible to maintain the glues 13a and 13b stored in the respective compartments 2 and 3 at different temperatures.
[0015]
In the middle of the partition plate 8, there is formed a through passage 10 through which the glue stored in each of the compartments 2 and 3 can freely pass, and an open / close valve 11 for closing or opening the through passage is formed in the through passage. Is provided. In this embodiment, the through passage 10 is formed as a concave groove, but may be a through hole.
[0016]
As shown in FIG. 3, the on-off valve 11 is composed of a plate-like valve 11, and slides in a vertical direction in a rectangular groove 8 b formed on opposing wall surfaces that form the through-passage 10 of the partition plate 8. The glue contained in each of the compartments 2 and 3 can be freely moved by sliding upward and moving freely, and can be slid downward and brought into contact with the bottom to make contact with the bottom. The independence of the glue stored in is secured. As shown in FIG. 4, this on-off valve is formed in a cylindrical valve 12 having a through hole 12 a or a through recess, and circles of wall surfaces facing each other forming a through passage 10 of the partition portion 8. You may make it engage | insert in an arc-shaped recessed part so that rotation is possible. In this case, the through passage 10 is opened and closed by rotating the valve 12.
[0017]
When gluing with the bookbinding back gluing apparatus configured as described above, when performing two types of gluing with different properties, the through passage 10 is closed by operating the on-off valve 11 (or 12), and each of the compartments 2, The rollers 4 and 5 supported by the rotary drive shafts 4a and 5a are arranged in each of the three, and one glue 13a of different kinds of glue is injected into the compartment 2, and the other glue 13b is injected into the compartment 3, respectively. 13b are heated to their respective melting temperatures, and the heated liquid paste is applied to the rotating rollers 4 and 5 and applied to the back of the booklet.
[0018]
When one kind of gluing is performed, the through-passage 10 is opened by operating the on-off valve 11 (or 12), and the roller 4 supported by the rotary drive shaft 4a or 5a in any of the compartments 2 and 3 is used. Or 5 is arrange | positioned and glue is inject | poured into either the compartment 2 or the compartment 3. FIG. The injected glue is divided and injected into each of the compartments 2 and 3 through the through passage 10, and is applied by a roller using the glue stored in both the compartments 2 and 3. The replenishment of glue can be performed in any of the compartments 2 and 3, and the work and device for replenishment can be simplified.
[0019]
It is optional to open the on-off valve 11 or arrange a roller in one of the compartments when performing one kind of gluing, and open the on-off valve 11 and install a roller in each of the compartments 2 and 3. Alternatively, the on-off valve 11 may be closed and one of the compartments 2 or 3 may be used. In the former case, it is sufficient to supply one of the compartments 2 or 3 at the time of replenishing glue, and the work and equipment for replenishment can be simplified. In the latter case, a small number of booklets can be used. Effective use of glue at the time of gluing can be achieved.
[0020]
In the above embodiment, the partition plate 8 is integrally formed with a mold or the like when the container 1 is produced. However, the partition plate is formed separately from the container and is liquid-tight along the cut groove formed in the container. You may make it adhere to. In this case, if a highly heat-insulating member is used for the partition plate, the partition plate may not be formed in an inverted U shape.
[0021]
【The invention's effect】
As described above in detail, according to the present invention, the inside of the container for heating and storing the glue used in the bookbinding apparatus is divided into two by the partition plate, and a heater is provided in each of the two divided chambers. Since the rollers can be arranged on each of them, two types of gluing with different properties can be performed, and the gluing device in this case can be reduced in size, and even in a small bookbinding device, the properties are different. Two types of gluing are possible. In addition, since the bottom plate is partitioned by a partition plate that rises along a cut groove that is divided into two, the heat conduction between the two divided chambers can be lowered, and the temperature of the glue stored in each divided chamber can be reduced. , Each can be maintained at a temperature corresponding to the melting temperature of the glue. Thereby, the heating more than necessary can be eliminated and the energy required for the heating can be reduced.
[0022]
In addition, when the partition plate is formed in a substantially inverted U shape, the heat conduction distance through the bottom plate is increased, and the heat insulation effect is enhanced by the U-shaped depression, and the heat conduction between the compartments is further lowered. The container can be formed integrally when the container is formed, and the partition plate can be easily formed. In addition, by providing a through-passage through which the glue of each compartment flows to the partition plate and providing an on-off valve in the through-passage, one of the compartments is back glued by opening / closing the on-off valve for one type of gluing. By using it, the effective use of glue and the reduction of energy can be achieved, and if both compartments are used, the frequency of supplying glue for the back gluing of a large number of booklets can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing the configuration of a bookbinding back gluing device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is a perspective view of a main part showing an example of a structure of an on-off valve.
FIG. 4 is a perspective view of a main part showing another example of the structure of the on-off valve.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Glue storage container 1a Container bottom plate 2, 3 compartments 4, 5 Glue application rollers 6, 7 Heater 8 Partition plate 9 Groove 10 Through passages 11, 12 On-off valve

Claims (3)

回転するローラに付着して冊子の背面に塗布する糊を加熱貯留する製本装置用糊容器において、前記容器の底板に、前記底板を２つに分断する切り溝を形成し、前記切り溝の両側の縁のそれぞれに、前記容器の底板から該容器の側壁の高さに延びる仕切り板を設けて前記容器内を、前記切り溝を隔てて２つの分室に分け、前記仕切り板により分けられた２つの分室のそれぞれに各分室内に貯留する糊を加熱するヒーターを設け、前記２つの分室のそれぞれに前記ローラを配置可能としてなることを特徴とする製本装置用糊容器。In a glue container for a bookbinding apparatus that heats and stores glue applied to a rotating roller and applied to the back of a booklet, a kerf that divides the bottom plate into two is formed on the bottom plate of the container, and both sides of the kerf A partition plate extending from the bottom plate of the container to the height of the side wall of the container is provided at each of the edges of the container, and the inside of the container is divided into two compartments across the kerf, and divided by the partition plate. A glue container for a bookbinding apparatus, wherein a heater for heating glue stored in each compartment is provided in each of the two compartments, and the roller can be arranged in each of the two compartments. 前記仕切り板は上端部を閉塞した略逆Ｕ字状をなし前記Ｕ字状の開口端縁を前記切り溝の両側の縁にそれぞれ沿わせてなる請求項１に記載の製本装置用糊容器。2. The glue container for a bookbinding apparatus according to claim 1, wherein the partition plate has a substantially inverted U shape with an upper end closed, and the U-shaped opening edge is aligned with both edges of the cut groove. 前記仕切り板に各分室の糊が互いに通流する貫通路を設け、前記貫通路に前記貫通路を開閉する開閉弁を設けてなる請求項１又は請求項２に記載の製本装置用糊容器。The glue container for a bookbinding apparatus according to claim 1 or 2, wherein a through-passage through which glue in each compartment flows is provided in the partition plate, and an open / close valve for opening and closing the through-passage is provided in the through-passage.

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