JPH0649308B2 - Method for manufacturing filter and mold for manufacturing filter - Google Patents
Method for manufacturing filter and mold for manufacturing filterInfo
- Publication number
- JPH0649308B2 JPH0649308B2 JP21583389A JP21583389A JPH0649308B2 JP H0649308 B2 JPH0649308 B2 JP H0649308B2 JP 21583389 A JP21583389 A JP 21583389A JP 21583389 A JP21583389 A JP 21583389A JP H0649308 B2 JPH0649308 B2 JP H0649308B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- filter
- molds
- net
- male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はフィルターの製造方法、特に射出成型法による
製造方法及びフィルター製造用金型の改良に関する。The present invention relates to a method for manufacturing a filter, and more particularly to an injection molding method and an improvement in a mold for manufacturing a filter.
以下に第２図を参照して、射出成形による従来のフィル
ターの製造方法について説明する。A conventional method of manufacturing a filter by injection molding will be described below with reference to FIG.
ここで製造するフィルターは、一例として、第２図Ｂ，
Ｃに示す如く、筒状部(39)の一方の開口にカット網(37)
が設けられたもので、そのカット網(37)には、中心部、
これからの８の本の放射線部及び２つの円環部から成る
補強用のリブ(33)が設けられている。The filter manufactured here is, for example, as shown in FIG.
As shown in C, the cut net (37) is provided in one opening of the tubular portion (39).
The cut net (37) has a central part,
Reinforcing ribs (33) consisting of eight radiating sections and two annular sections are provided.
第２図Ａについて金型を説明するに、(1)は金型を示
し、夫々略四角柱状の上型(2)及び下型(17)から成り、
図示を省略した射出成形機の所定の部位に取付けられ
る。先ず、金型(1)の上型(2)の構成について説明する。
上型(2)の下部にめす型(16)が形成され、このめす型(1
6)において、(15a)は上部外面成形部で、フィルターの
リブ(33)を形成するように、めす型(16)の天井部分が上
述のリブ(33)の形状に応じて切削されて形成される。(1
5b)は周面部外面成形部で、フィルターの筒状部(39)を
形成するようにめす型(16)の内周面が円筒状に、切削さ
れて形成される。To explain the mold with reference to FIG. 2A, (1) shows the mold, which is composed of an upper mold (2) and a lower mold (17) each having a substantially rectangular column shape,
It is attached to a predetermined part of an injection molding machine (not shown). First, the structure of the upper die (2) of the die (1) will be described.
A female die (16) is formed at the bottom of the upper die (2).
In (6), (15a) is an upper outer surface molding part, which is formed by cutting the ceiling part of the female mold (16) according to the shape of the above-mentioned rib (33) so as to form the rib (33) of the filter. To be done. (1
5b) is a peripheral surface outer surface molding portion, which is formed by cutting the inner peripheral surface of the female mold (16) into a cylindrical shape so as to form the cylindrical portion (39) of the filter.
(3)は、上型(1)の上面の中心に設けられた半球状のノズ
ル固定部で、射出成形機の融解された樹脂を射出するノ
ズル(30)の先端が嵌合する如く固定される。(31)は樹脂
流入孔で、ノズル固定部(3)と連通して下方へ略垂直に
延びてめす型(16)と連通し、その下端が樹脂注入口(32)
として上部外面成形部(15a)の中心に形成される。(35)
は直線状の孔から成る冷却部で、上型(2)を水平に貫通
し、その一端は冷却剤注入口(10)とされ、他端は冷却剤
流出口(11)とされる。そして、かかる冷却部(35)が互い
に平行になるように、上型(2)に複数本等設けられ、冷
却剤注入口(10)及び冷却剤流出口(11)間にポンプ、冷却
機等が連結されて、水等の冷却剤が冷却部(35)内を通過
して、上型(2)を冷却するように成されている。(3) is a hemispherical nozzle fixing part provided in the center of the upper surface of the upper mold (1), and is fixed so that the tip of the nozzle (30) for injecting the melted resin of the injection molding machine fits. It (31) is a resin inflow hole, which communicates with the nozzle fixing part (3) and extends substantially vertically downward to communicate with a female mold (16), and the lower end thereof is a resin injection port (32).
Is formed at the center of the upper outer surface molding portion (15a). (35)
Is a cooling part consisting of a linear hole, which penetrates the upper mold (2) horizontally, one end of which serves as a coolant inlet (10) and the other end of which serves as a coolant outlet (11). Then, a plurality of such cooling units (35) are provided in the upper mold (2) so that they are parallel to each other, and a pump, a cooling machine, etc. are provided between the coolant inlet (10) and the coolant outlet (11). Are connected so that a coolant such as water passes through the inside of the cooling section (35) to cool the upper mold (2).
次に、下型(17)の説明をする。(19)は、下型(17)の上側
に形成されたおす型で、上型(2)のめす型(16)に挿入さ
れる。このおす型(19)において、(18a)は上部内面成形
部で、これはおす型(19)の上部に加工して形成された融
解樹脂の流入を防ぐための底面の平坦な凹部から成り、
この凹部に樹脂、金属等から成る円形のカット網(37)が
載置される。この凹部の深さは、カット網(37)の使用線
材の径によって決定される。(18b)は、周面部内面成形
部でフィルターの筒状部(39)の内面を形成するようにお
す型(19)の外周面が円柱状に切削して形成される。Next, the lower mold (17) will be described. (19) is a male mold formed on the upper side of the lower mold (17) and is inserted into the female mold (16) of the upper mold (2). In this male mold (19), (18a) is an upper inner surface molding portion, which is composed of a flat concave portion on the bottom surface for preventing inflow of molten resin formed by processing on the upper portion of the male mold (19),
A circular cut net (37) made of resin, metal or the like is placed in this recess. The depth of the recess is determined by the diameter of the wire used for the cut net (37). (18b) is formed by cutting the outer peripheral surface of the mold (19) into a cylindrical shape so as to form the inner surface of the cylindrical portion (39) of the filter at the inner peripheral surface molding portion.
(36)は直線状の孔から成る冷却部で、下型(17)の上部を
水平に貫通して、その一端は冷却剤注入口(20)とされ、
他端は冷却剤流出口(21)とされる。そして、上型(2)と
同様に、上述した冷却部(36)が平行に、下型(17)に複数
本設けられ、冷却剤注入口(20)及び冷却剤流出口(21)間
にポンプ、冷却機等が連結されて、水等の冷却剤が冷却
部(36)内を通過するように成されている。尚、上述した
冷却部(36)は、成形するフィルターの形状によっては円
筒状のものもあり、又、材料となる融解樹脂によって
は、冷却部(36)に温水を通過させる場合もある。(36) is a cooling unit consisting of a linear hole, which horizontally penetrates the upper part of the lower mold (17), and one end of which is a coolant injection port (20),
The other end serves as a coolant outlet (21). Then, similar to the upper mold (2), the cooling unit (36) described above is provided in parallel, a plurality of lower molds (17) are provided between the coolant injection port (20) and the coolant outflow port (21). A pump, a cooler, etc. are connected so that a coolant such as water passes through the inside of the cooling section (36). The cooling unit (36) may have a cylindrical shape depending on the shape of the filter to be molded, and depending on the molten resin used as the material, hot water may pass through the cooling unit (36).
次に、第２図Ｂ，Ｃに示す形状のフィルターを製造する
方法について説明する。Next, a method for manufacturing the filter having the shape shown in FIGS. 2B and 2C will be described.
先ず下型(17)のおす型(19)の上部内面成形部(18a)の凹
部に第２図Ｂで示すようなカット網（例えば、ナイロン
線、金属線等を織って、所望の形状に裁断したものがあ
げられる）(37)が載置され、この後、上型(2)のめす型
(16)に下型(17)のおす型(19)が挿入されて、両者が高圧
を以て加圧されて合体され、カット網(37)が上型(2)の
めす型(16)の上部外面成形部(15a)及び下型(17)のおす
型(19)の上部内面成形部(18a)によって挟持されて、圧
縮される。そして、ノズル(30)が金属(1)の上型(2)のノ
ズル固定部(3)に固定され、このノズル(30)の先端より
略180℃〜300℃の温度の融解樹脂（例えばポリプロピレ
ン、ポリエチレン、６ナイロン、66ナイロン等があげら
れる）が射出され、この融解樹脂は、樹脂流入孔(31)を
通じて樹脂注入口(32)から、金型(1)の上型(2)と下型(1
7)の組み合わせで形成された、フィルターを成形する型
内部に流入する。そして、フィルターを形成する型内部
に充填された融解樹脂は上型(2)の冷却部(35)と、下型
(17)の冷却部(36)を夫々通過する冷却剤によって冷却さ
れ、約30〜40秒で略70℃〜80℃になって硬化する。そし
てこの後、上型(2)及び下型(17)が分離されると、第２
図Ｂ，Ｃに示す筒状部(39)の一方の開口にカット網(31)
が設けられ、そのカット網(31)には補強用のリブ(33)が
設けられたフィルターが得られる。First, a cut net (for example, nylon wire, metal wire, etc.) as shown in FIG. 2B is woven in the concave portion of the upper inner surface molding portion (18a) of the male mold (19) of the lower mold (17) to obtain a desired shape. (37) is placed, and then the female mold of the upper mold (2)
The male mold (19) of the lower mold (17) is inserted into the (16) and they are pressed together under high pressure to be united, and the cut net (37) is the upper part of the female mold (16) of the upper mold (2). It is sandwiched and compressed by the outer surface molding portion (15a) and the upper inner surface molding portion (18a) of the male die (19) of the lower mold (17). The nozzle (30) is fixed to the nozzle fixing part (3) of the upper mold (2) of the metal (1), and a molten resin (for example, polypropylene) having a temperature of about 180 ° C to 300 ° C from the tip of the nozzle (30). , Polyethylene, 6-nylon, 66-nylon, etc.) are injected, and the molten resin is injected from the resin injection port (32) through the resin inflow hole (31) to the upper mold (2) and lower mold (1). Type (1
It flows into the mold for molding the filter, which is formed by the combination of 7). And the molten resin filled inside the mold forming the filter is the cooling part (35) of the upper mold (2) and the lower mold.
It is cooled by the cooling agent passing through the cooling section (36) of (17), and reaches about 70 ° C to 80 ° C in about 30 to 40 seconds to be hardened. After that, when the upper mold (2) and the lower mold (17) are separated, the second mold
A cut net (31) is provided in one opening of the tubular portion (39) shown in FIGS.
Is provided, and the cut net (31) is provided with a reinforcing rib (33) to obtain a filter.
上述した従来の射出成形によるフィルターの製造方法に
は、次のような欠点がある。The above-described conventional method of manufacturing a filter by injection molding has the following drawbacks.
先ず、別に製造されたナイロン、ポリプロピレン等の樹
脂、金属等の網を、製造すべきフィルターの構造、形状
等に応じて、所定の形状に切断し、又は、これと共に所
定の形状に成形して、その形状を保持するように加工し
て、これを金型を構成する一対の型の網部を形成すべき
部分に設けた、その使用線材の線径に応じた深さの凹部
に、フィルターの成型毎に載置して、インサート成型に
よってフィルターを製造するため、手作業が必要で、自
動化が困難であるため、人件費、網の製造に要する費用
等がかさむため、フィルターの価格がどうしても高く成
る。First, a separately manufactured resin such as nylon or polypropylene or a net such as metal is cut into a predetermined shape according to the structure, shape, etc. of the filter to be manufactured, or molded together with this into a predetermined shape. , Processed to maintain its shape, and provided in the portion where the net portion of the pair of molds forming the mold is to be formed, the filter is provided in the concave portion having a depth corresponding to the wire diameter of the wire rod used. Since the filter is put on for each molding process and the filter is manufactured by insert molding, manual work is required, automation is difficult, and labor cost, cost required for manufacturing the mesh, etc. increase, so the filter price is inevitable. Get higher
又、使用する網の使用線材の径のばらつき等によって、
製造時に網の部分に融解した樹脂が部分的に流れ込んで
網目を塞ぎ、フィルターの品質にばらつきが生じる。Also, due to variations in the diameter of the wire used in the net used,
At the time of manufacture, the resin melted in the mesh portion partially flows in to block the mesh, resulting in variations in filter quality.
更に、金型を構成する一対の型が、かなりの高圧を以
て、加圧されて合体され、これによりカット網（特に金
属線材から成る場合）は高圧にて圧縮して成形されるた
め、金型が摩耗し易い。Furthermore, the pair of molds that make up the mold are pressed together at a considerably high pressure, and the cut nets (particularly when made of metal wire) are compressed and molded at high pressure. Is easily worn.
かかる点に鑑み、本発明は網部も成形あよって形成する
ことのできるフィルターの製造方法及びフィルター製造
用金型を提案しようとするものである。In view of such a point, the present invention intends to propose a filter manufacturing method and a filter manufacturing mold in which a mesh portion can be formed by molding.
第１の本発明は、製造すべきフィルターの形状に応じ
て、夫々おす型(19)及びめす型(16)の形成された第１及
び第２の型(2),(17)から成る金型(1)を用い、その金型
(1)に融解樹脂を射出注入して、フィルターを製造する
ようにしたフィルターの製造方法において、第１及び第
２の型(2),(17)のおす型(19)及びめす型(16)に、製造す
べきフィルターの網部(38)の形状に応じた網部成形部(1
5a),(18a)が夫々形成されると共に、第１及び第２の型
(2),(17)の網部成形部(15a),(18a)の近傍に、保温部と
しての空間(8),(28)が設けられて成る金型(1)を使用
し、第１及び第２の型(2),(17)の保温部としての空間
(8),(28)に加熱手段を容れた状態で、金型(1)に融解樹
脂を射出注入する。The first aspect of the present invention is a metal comprising a first mold and a second mold (2) and (17) having a male mold (19) and a female mold (16) formed according to the shape of a filter to be manufactured. Mold (1) is used and its mold
A method of manufacturing a filter, in which a molten resin is injected and injected into (1), wherein a male mold (19) and a female mold (16) of the first and second molds (2) and (17) are used. ), The mesh part (1) corresponding to the shape of the mesh part (38) of the filter to be manufactured.
5a) and (18a) are formed respectively, and the first and second molds are formed.
(2), (17) in the vicinity of the net forming part (15a), (18a), using the mold (1) provided with space (8), (28) as a heat retaining part, Space as the heat insulation part of the 1st and 2nd molds (2) and (17)
With the heating means in (8) and (28), the molten resin is injected and injected into the mold (1).
第２の本発明は、第１の本発明において、第１及び第２
の型(2),(17)のおす型(19)及びめす型(16)に、製造すべ
きフィルターの網部(38)の形状に応じた網部成形部(15
a),(18a)が夫々形成されると共に、第１及び第２の型
(2),(17)の網部成形部(15a),(18a)の近傍に、保温部と
しての空間(8),(28)が設けられ、且つ、第１及び第２の
型(2),(17)のおす型(19)及びめす型(16)の網部成形部(1
5a),(18a)以外の部分の近傍に、冷却部としての空間(1
4),(24)が設けられて成る金型(1)を使用し、第１及び第
２の型(2),(17)の保温部としての空間(8),(28)に加熱手
段を容れると共に、冷却部としての空間(14),(24)に冷
却液体を容れた状態で、金型(1)に融解樹脂を射出注入
する。The second aspect of the present invention is the same as the first aspect of the present invention.
The mold (2), (17) of the male mold (19) and the female mold (16), the mesh forming part (15) according to the shape of the mesh (38) of the filter to be manufactured.
a) and (18a) are formed respectively, and the first and second molds are formed.
Spaces (8) and (28) as heat retaining parts are provided near the net forming parts (15a) and (18a) of (2) and (17), and the first and second molds (2 ), (17) male mold (19) and female mold (16)
In the vicinity of the parts other than 5a) and (18a), the space (1
The mold (1) provided with 4) and (24) is used, and heating means is provided in the spaces (8) and (28) as the heat retaining parts of the first and second molds (2) and (17). In addition, the molten resin is injected and injected into the mold (1) while the cooling liquid is contained in the spaces (14) and (24) as cooling units.
第３の本発明は、製造すべきフィルターの形状に応じ
て、夫々おす型(19)及びめす型(16)の形成された第１及
び第２の型(2),(17)から成るフィルター製造用金型(1)
において、第１及び第２の型(2),(17)のおす型(19)及び
めす型(16)に、製造すべきフィルターの網部(38)の形状
に応じた網部成型部(15a),(18a)が夫々形成されると共
に、上記第１及び第２の型(2),(17)の網部形型部(15a),
(18a)の近傍に、保温部としての空間(8),(28)が設けら
れて成るものである。A third aspect of the present invention is a filter comprising first and second molds (2) and (17) in which a male mold (19) and a female mold (16) are formed according to the shape of the filter to be manufactured. Manufacturing Mold (1)
In the first and second molds (2), (17), the male mold (19) and the female mold (16) have a mesh portion molding portion (corresponding to the shape of the mesh portion (38) of the filter to be manufactured ( 15a) and (18a) are respectively formed, and the net-shaped mold portions (15a) and (15a) of the first and second molds (2) and (17) are formed.
Spaces (8) and (28) as a heat retaining portion are provided near the (18a).
第４の本発明は、第３の本発明において、第１及び第２
の型(2),(17)の上記おす型(19)及びめす型(16)に、製造
すべきフィルターの網部(38)の形状に応じた網部成形部
(15a),(18a)が夫々形成されると共に、第１及び第２の
型(2),(17)の網部成形部(15a),(18a)の近傍に、保温部
としての空間(8),(28)が設けられ、且つ、第１及び第２
の型(2),(17)の上記おす型(19)及びめす型(16)の網部成
形部(15a),(18a)以外の部分(15b),(18b)の近傍に、夫々
冷却部としての空間(14),(24)が設けられて成るもので
ある。A fourth aspect of the present invention is the same as the third aspect of the present invention.
In the male mold (19) and the female mold (16) of the molds (2) and (17) of FIG. 1, a mesh molding part corresponding to the shape of the mesh part (38) of the filter to be manufactured.
(15a) and (18a) are formed respectively, and a space as a heat retaining portion (near the mesh forming portions (15a) and (18a) of the first and second molds (2) and (17) ( 8) and (28) are provided, and the first and second
(2) and (17) of the male mold (19) and the female mold (16) are cooled in the vicinity of the parts (15b) and (18b) other than the net molding parts (15a) and (18a), respectively. Spaces (14) and (24) are provided as parts.
第１の本発明によれば、金型(1)の第１及び第２の型
(2),(17)の網部成形部(15a),(18a)の近傍に設けられた
保温部としての空間(8),(28)に、加熱手段を容れた状態
で、金型(1)に融解樹脂を射出注入する。According to the first invention, the first and second molds of the mold (1)
In the space (8), (28) as a heat retaining portion provided in the vicinity of the mesh molding portions (15a), (18a) of (2), (17), the mold ( Injection injection of molten resin into 1).
第２の本発明によれば、金型の第１及び第２の型(2),(1
7)の網部成型部(15a),(18a)の近傍に設けられた保温部
としての空間(8),(28)に加熱手段を容れると共に、網部
成形部(15a),(18a)以外の部分(15b),(18b)に設けられた
冷却部としての空間(14),(24)に冷却液体を容れた状態
で、金型(1)に融解樹脂を射出注入する。According to the second invention, the first and second molds (2), (1
Net part molding part (15a) of (7), while containing heating means in the space (8), (28) as a heat insulating part provided near (18a), net part molding part (15a), (18a) The molten resin is injected and injected into the mold (1) in a state where the cooling liquid is contained in the spaces (14) and (24) provided as cooling parts in the other parts (15b) and (18b).
第３の本発明によれば、第１及び第２の型(2),(17)を合
体し、第１及び第２の型(2),(17)の網部成形部(15a),(1
8a)の近傍に設けられた保温部としての空間(8),(28)
に、加熱手段を容れた状態で、合体された第１及び第２
の型(2),(17)のおす型(19)及びめす型(16)から成る空間
に融解樹脂を射出注入する。According to the third aspect of the present invention, the first and second molds (2) and (17) are combined to form the net portion molding portions (15a) and (15a) of the first and second molds (2) and (17). (1
Space (8), (28) provided as a heat insulation section near (8a)
In the state where the heating means is contained, the combined first and second
The molten resin is injected and injected into the space formed by the male mold (19) and the female mold (16) of the molds (2) and (17).
第２の本発明によれば、第１及び第２の型(2),(17)を合
体し、第１及び第２の型(2),(17)の網部成形部(15a),(1
8a)の近傍に設けられた保温部としての空間(8),(28)に
加熱手段を容れると共に、網部成形部(15a),(18a)以外
の部分に設けられた冷却部としての空間(14),(24)に冷
却液体を容れた状態で、合体された第１及び第２の型
(2),(17)のおす型(19)及びめす型(16)から成る空間に融
解樹脂を射出注入する。According to the second aspect of the present invention, the first and second molds (2) and (17) are combined, and the net portion molding portions (15a) of the first and second molds (2) and (17), (1
The space (8), (28) as a heat retaining portion provided in the vicinity of (8a) contains the heating means, and the space as a cooling portion provided in a portion other than the net forming portions (15a), (18a) The first and second molds combined with the cooling liquid in (14) and (24)
The molten resin is injected and injected into the space formed by the male mold (19) and the female mold (16) of (2) and (17).
以下に第１図を参照して、本発明の一実施例を詳細に説
明する。An embodiment of the present invention will be described in detail below with reference to FIG.
ここで製造するフィルターは、例えば第２図において説
明したフィルターと同様のものであるが、その網は筒状
部及び補強用リブと共に成形によって作られる。The filter manufactured here is similar to the filter described in FIG. 2, for example, but its mesh is formed by molding together with the tubular portion and the reinforcing ribs.
第１図Ａについて金型を説明するに、(1)は金型を示
し、上型(2)及び下型(17)から成り、図示を省略した射
出成形機の所定の部位に取付けられる。先ず、金型(1)
の上型(2)の構成について説明する。To explain the mold with reference to FIG. 1A, (1) shows a mold, which is composed of an upper mold (2) and a lower mold (17), and is attached to a predetermined portion of an injection molding machine (not shown). First, the mold (1)
The configuration of the upper mold (2) will be described.
上型(2)の下部にめす型(16)が形成され、このめす型(1
6)において、(15a)は上部外面成形部で、フィルターの
上部外面、即ち、第２図Ｂのリブ(33)の上層及び網部
〔第１図Ｃに示すように、互いに平行な半円柱状の多数
の細棒が互いに交叉する網部〕(38)の上面を形成するよ
うに、めす型(16)の上部が切削されて形成される。(15
b)は円周部外面成形部で、フィルターの筒状部(39)の外
面を形成するように、めす型(16)の円周面が円筒状に切
削されて形成される。A female die (16) is formed at the bottom of the upper die (2).
In 6), (15a) is an upper outer surface molding portion, which is the upper outer surface of the filter, that is, the upper layer and the mesh portion of the rib (33) in FIG. 2B [a semicircle parallel to each other as shown in FIG. 1C]. The upper part of the female die (16) is cut and formed so as to form an upper surface of a net portion (38) in which a large number of columnar thin rods cross each other. (15
Reference numeral b) denotes a circumferential portion outer surface molding portion, which is formed by cutting the circumferential surface of the female mold (16) into a cylindrical shape so as to form the outer surface of the tubular portion (39) of the filter.
(3)はノズル固定部で、射出成形機のノズル(30)が嵌合
する如く固定される。(31)は樹脂流入孔で、ノズル固定
部(3)と連通して下方へ略垂直に延びてめす型(16)と連
結し、その下端が樹脂注入口(32)として上部外面成形部
(15a)の中心に形成される。この樹脂注入孔(31)は、ノ
ズル固定部(3)から下方へ垂直に延びて成る管状樹脂流
入孔部(31a)と、この管状樹脂流入孔部(31a)と連通し、
樹脂注入口(32)からの融解樹脂の金型(1)内部への流入
速度を速くすると共に、保温効果を高めるための、管状
樹脂流入孔部(31a)の内径より大なる円径の円盤状樹脂
流入孔部(31b)と、この円盤状樹脂流入孔部(31b)と連通
して、下方に延在する濾斗状樹脂流入孔(31c)から成
る。A nozzle fixing portion (3) is fixed so that the nozzle (30) of the injection molding machine fits. (31) is a resin inflow hole, which communicates with the nozzle fixing part (3) and extends substantially vertically downward and is connected to a female mold (16), and the lower end thereof serves as a resin injection port (32) on the upper outer surface molding part.
It is formed at the center of (15a). The resin injection hole (31) is connected to the tubular resin inflow hole portion (31a) and the tubular resin inflow hole portion (31a) vertically extending downward from the nozzle fixing portion (3).
A disc with a circular diameter larger than the inner diameter of the tubular resin inflow hole (31a) for increasing the inflow speed of the molten resin from the resin injection port (32) into the mold (1) and enhancing the heat retention effect. The resin-shaped resin inflow hole (31b) and the funnel-shaped resin inflow hole (31c) communicating with the disc-shaped resin inflow hole (31b) and extending downward.
(8)は円環状の保温部で、金型(1)内部で、めす型(16)の
上部外面成形部(15a)に近接して設けられ、夫々直線状
の孔から成る保温剤流入部(6)及び保温剤流出部(7)と夫
々連通している。又、保温剤流入部(6)の遊端は保温剤
注入口(4)とされ、保温剤流出部(7)の遊端は保温剤流出
口(5)とされる。そして、保温剤注入口(4)及び保温剤流
出口(5)間にポンプ、加熱機等を連結し、保温剤とし
て、例えば60℃〜100℃程度の温度の水、油等を保温部
(8)を通過させ、ノズル(30)から射出されて樹脂流入孔
(31)を通過する樹脂及び、樹脂注入口(32)から注入され
て、上型(2)の上部外面成形部(15a)及び下型(17)の上部
内面成形部(18a)間に流入する樹脂を所定温度に保温す
る。(8) is a ring-shaped heat retaining part, which is provided inside the mold (1) in the vicinity of the upper outer surface molding part (15a) of the female mold (16), and each has a heat retaining agent inflow part formed of a linear hole. (6) and the heat retaining agent outflow part (7) respectively communicate. The free end of the heat retaining agent inflow portion (6) is used as the heat retaining agent inlet (4), and the free end of the heat retaining agent outflow portion (7) is used as the heat retaining agent outlet (5). Then, a pump, a heater, etc. are connected between the heat retaining agent inlet (4) and the heat retaining agent outlet (5), and as the heat retaining agent, for example, water or oil having a temperature of about 60 ° C to 100 ° C is kept in the heat retaining section.
(8), then injected from the nozzle (30) and the resin inflow hole
The resin that passes through (31) and the resin is injected from the resin injection port (32) and flows between the upper outer surface molding part (15a) of the upper mold (2) and the upper inner surface molding part (18a) of the lower mold (17). The resin to be heated is kept at a predetermined temperature.
(14)は円環状の冷却部で、金型(1)の内部で、めす型(1
6)の周面部外面成形部(15b)に近接して設けられ、夫々
直線状の孔から成る冷却剤流入部(12)及び冷却剤流出部
(13)と夫々連通している。又、冷却剤流入部(12)の遊端
は冷却剤注入口(10)とされ、冷却剤流出部(13)の遊端は
冷却剤流出口(11)とされる。そして、冷却剤注入口(10)
及び冷却剤流出口(11)間にポンプ、冷却機等を連結し、
冷却剤として、例えは、５℃〜30℃の水を冷却部(24)を
通過させ、これにより樹脂注入口(32)から注入されて、
上型(2)の周面部外面成形部(15b)及び下型(17)の周面部
内面成形部(18b)間に流入する樹脂の温度を低下させ
る。(14) is a ring-shaped cooling section, inside the mold (1), a female mold (1
The coolant inflow portion (12) and the coolant outflow portion, which are provided in the vicinity of the outer peripheral surface molding portion (15b) of 6) and are each formed of a linear hole,
They are in communication with (13) respectively. The free end of the coolant inflow part (12) is the coolant injection port (10), and the free end of the coolant outflow part (13) is the coolant outflow port (11). And the coolant inlet (10)
And, connect a pump, cooler, etc. between the coolant outlet (11),
As the cooling agent, for example, water at 5 ° C to 30 ° C is passed through the cooling section (24), whereby it is injected from the resin injection port (32),
The temperature of the resin flowing between the outer peripheral surface molding part (15b) of the upper die (2) and the inner peripheral surface molding part (18b) of the lower die (17) is lowered.
次に下型(17)の説明をする。(19)は、下型(17)の上側に
形成されたおす型で上型(2)のめす型(16)に挿入され
る。このおす型(19)において、(18a)は上部内面成形部
で、フィルターの上部内面、即ち、第１図Ｂのリブ(33)
の下面及び網部〔第１図Ｃに示すように、互いに平行な
半円柱状の多数の細棒が互いに交叉する網部〕(38)の下
面を形成するように、おす型(19)の上部が切削されて形
成される。(18b)は周面部内面成形部で、フィルターの
筒状部(39)の内面を形成するように、おす型(19)の外周
面が円柱状に切削されて形成される。Next, the lower mold (17) will be described. The male mold (19) is formed on the upper side of the lower mold (17) and is inserted into the female mold (16) of the upper mold (2). In this male mold (19), (18a) is an upper inner surface molding portion, that is, a rib (33) shown in FIG.
Of the male mold (19) so as to form the lower surface and the lower surface of the net portion (a net portion in which a number of parallel semi-cylindrical thin rods cross each other as shown in FIG. 1C) (38). The upper part is cut and formed. (18b) is a peripheral surface inner surface molding portion, which is formed by cutting the outer peripheral surface of the male die (19) into a cylindrical shape so as to form the inner surface of the tubular portion (39) of the filter.
(28)は保温部で、その形状は、大径及び小径の円筒が上
下にリベット状に重ねられた形状を有し、その上部の円
筒部が、おす型(19)の上部内面成形部(18a)に近接して
設けられ、その下部の円筒部が、夫々直線状の孔から成
る保温剤流入部(15)及び保温剤流出部(27)と夫々連通し
ている。又、保温剤流入部(27)の遊端は保温剤注入口(2
5)とされ、保温剤流出部(15)の遊端は保温剤流出口(26)
とされる。そして、保温剤注入口(25)及び保温剤流出口
(26)間にポンプ、加熱機等を連結し、保温剤として、例
えば60℃〜100℃の温度の水を保温部(28)を通過させ、
樹脂注入口(32)から射出されて、上型(2)の上部外面成
形部(15a)と、下型(17)の上部内面成形部(18a)間に流入
する樹脂の温度を保温する。(28) is a heat-retaining part, which has a shape in which large-diameter and small-diameter cylinders are vertically stacked in a rivet shape, and the upper cylinder part is the upper inner surface molding part of the male mold (19) ( 18a) is provided in the vicinity thereof, and the lower cylindrical portions thereof communicate with the heat retaining agent inflow portion (15) and the heat retaining agent outflow portion (27), each of which is formed of a linear hole. In addition, the free end of the heat retaining agent inflow part (27) has a heat retaining agent inlet (2
5), and the free end of the heat retaining agent outlet (15) is the heat retaining agent outlet (26).
It is said that And the heat retaining agent inlet (25) and the heat retaining agent outlet
A pump, a heater, etc. are connected between (26), and as a heat retaining agent, for example, water having a temperature of 60 ° C to 100 ° C is passed through the heat retaining section (28),
The temperature of the resin injected from the resin injection port (32) and flowing between the upper outer surface molding portion (15a) of the upper mold (2) and the upper inner surface molding portion (18a) of the lower mold (17) is kept warm.
(24)は円環状の冷却部で、金型(1)の内部でおす型(19)
の周面部内面成形部(18b)に近接して設けられ、夫々直
線状の孔から成る冷却剤流入部(22)及び冷却剤流出部(2
3)と夫々連通している。又、冷却剤流入部(22)の遊端は
冷却剤注入口(20)とされ、冷却剤流出部(23)の遊端は冷
却剤流出口(21)とされる。そして、冷却剤注入口(20)及
び冷却剤流出口(21)間にポンプ、冷却機等を連結し、冷
却剤として、例えば、５℃〜30℃の水を冷却部(24)を通
過させ、樹脂注入口(32)から注入されて上型(2)の周面
部外面成形部(15b)と、下型(17)の周面部内面成形部(18
b)の間に流入する樹脂の温度を下げる。(24) is an annular cooling part, and is a male mold (19) inside the mold (1).
The inner surface molding portion (18b) of the peripheral surface of the cooling agent inflow portion (22) and the cooling agent outflow portion (2
It communicates with 3) respectively. The free end of the coolant inflow part (22) is the coolant injection port (20), and the free end of the coolant outflow part (23) is the coolant outflow port (21). Then, a pump, a cooler, or the like is connected between the coolant injection port (20) and the coolant outlet port (21), and as the coolant, for example, water at 5 ° C to 30 ° C is passed through the cooling section (24). , The outer surface molding portion (15b) of the upper die (2) injected from the resin injection port (32) and the inner surface molding portion (18) of the lower die (17).
Lower the temperature of the resin flowing during b).
下型(17)において、(29)はガスベンドで、下型(17)上
で、おす型(19)の周囲の低い面上の一部に形成され、上
型(2)のめす型(16)に、下型(17)のおす型(19)が挿入さ
れたときに、下型(17)のおす型(19)の周面部内面成形部
(18b)及び上型(2)のめす型(16)の周面部外面成形部(15
b)間に形成される空間の下端から、下型(17)の外側まで
延在し、製品成形時に発生するガスを外部に逃がすため
のものである。In the lower die (17), (29) is a gas bend, which is formed on the lower die (17) on a part of the lower surface around the male die (19), and is formed by the female die (16) of the upper die (2). ), When the male die (19) of the lower die (17) is inserted, the inner peripheral surface molding part of the male die (19) of the lower die (17)
(18b) and the peripheral surface of the female die (16) of the upper die (2) (15)
It extends from the lower end of the space formed between b) to the outside of the lower mold (17) and allows the gas generated during product molding to escape to the outside.
次に、第１図Ｂ，Ｃに示す形状のフィルターを製造する
方法について説明する。Next, a method of manufacturing the filter having the shape shown in FIGS. 1B and 1C will be described.
先ず上型(2)のめす型(16)に下型(17)のおす型(19)が挿
入されて、両者の合体後、金型内部の空気及び射出樹脂
内のガス抜けを良くするために、従来例より低圧、即
ち、通常圧力の1/5以下（製品投影面積120cm2に対し０
〜30kg／cm2である）に加圧されて合体され、ノズル(3
0)が金型(1)の上型(2)のノズル固定部(3)に固定され、
このノズル(30)の先端より略180℃〜300℃の温度の融解
樹脂（例えば、ポリプロピレン、ポリエチレン、６ナイ
ロン、66ナイロン等）が射出される。First, the male mold (16) of the upper mold (2) is inserted with the male mold (19) of the lower mold (17), and after the two are united, the air inside the mold and the gas escape in the injection resin are improved. The pressure is lower than that of the conventional example, that is, 1/5 or less of the normal pressure (0 for a product projected area of 120 cm 2 ).
~ 30kg / cm 2 ) and combined with the nozzle (3
0) is fixed to the nozzle fixing part (3) of the upper mold (2) of the mold (1),
Molten resin (for example, polypropylene, polyethylene, 6 nylon, 66 nylon, etc.) at a temperature of approximately 180 ° C. to 300 ° C. is injected from the tip of the nozzle (30).
一方、上型(2)及び下型(17)の保温剤注入口(4),(25)か
ら夫々注入された保温剤は、保温剤流入部(6),(15)を通
って保温部(8),(28)へ流入し、更に保温剤流出部(7),(2
7)を通って保温剤流出口(5),(26)から流出される。On the other hand, the heat retaining agents injected from the heat retaining agent inlets (4) and (25) of the upper mold (2) and the lower mold (17) respectively pass through the heat retaining agent inflow portions (6) and (15). Inflow to (8), (28), and further to the heat insulation agent outflow part (7), (2
It is discharged from the heat retaining agent outlets (5) and (26) through 7).
そして、冷却剤注入口(10),(20)から夫々注入された冷
却剤は、冷却剤流入部(12),(22)を通って冷却部(14),(2
4)へ流入し、更に冷却剤流出部(13),(23)を通って冷却
剤流出口(11),(21)から外部へ流出される。Then, the coolant injected from the coolant inlets (10) and (20) respectively passes through the coolant inflow portions (12) and (22) and the cooling portions (14) and (2).
4) and further out through the coolant outlets (13), (23) to the outside through the coolant outlets (11), (21).
ノズル(30)の先端より射出された融解樹脂は樹脂流入孔
(31)を通じて樹脂注入口(32)から、金型(1)の上型(2)と
下型(17)の組み合わせで形成された、フィルターを成形
する型内部に流入する。そして、フィルターの上部外面
及び内面（第１図Ｂ参照）を形成する型の部分に流入し
た融解樹脂は保温部(8),(28)の保温剤によってその温度
が保温されて、フィルターのリブ(33)を形成する型及び
網部(38)を形成する細かい型全体に流入するまえに硬化
しないように成され、フィルターの筒状部(39)を形成す
る型に流入して、冷却部(14),(24)の冷却剤によってそ
の流入樹脂内のガス溜まりが防止されると共に、その温
度が冷却され硬化する。そしてこの後、上型(2)及び下
型(17)が分離されると、第１図Ｂに示すような一体成形
のフィルターが得られる。このフィルターのリブ(33)
は、第１図Ｄに示すような構造を有する。即ち、第１図
Ｄは、リブ(33)及び網部(38)の断面を示し、リブ(33)
は、融解樹脂の網部(38)への流入を容易にするためにそ
の幅を狭くし、且つ、深さを浅くしなければならない
が、このようにすると、リブ(33)の網部(38)に対する保
持強度が低下するので、これを回避するためにコの字形
又はＨ字形になされている。又、その網部(38)は、第１
図Ｃに示すような形状で、網部(38)の穴は略正方形で、
その一辺の長さは略0.3mmとかなり小さくすることがで
きる。The molten resin injected from the tip of the nozzle (30) is the resin inflow hole.
Through the resin injection port (32) through the (31), it flows into the mold for molding the filter, which is formed by the combination of the upper mold (2) and the lower mold (17) of the mold (1). Then, the temperature of the molten resin that has flowed into the mold forming the outer surface and the inner surface (see FIG. 1B) of the filter is kept warm by the heat retaining agent of the heat retaining portions (8) and (28), and the ribs of the filter are (33) is formed so that it does not harden before flowing into the mold forming the net part (38) and the fine mold forming the net part (38), and then flows into the mold forming the tubular part (39) of the filter to cool the cooling part. The coolants (14) and (24) prevent gas from accumulating in the inflowing resin, and the temperature thereof is cooled and hardened. After that, when the upper mold (2) and the lower mold (17) are separated, an integrally molded filter as shown in FIG. 1B is obtained. Ribs (33) for this filter
Has a structure as shown in FIG. 1D. That is, FIG. 1D shows a cross section of the rib (33) and the mesh portion (38).
In order to facilitate the inflow of the molten resin into the mesh portion (38), the width thereof must be narrowed and the depth thereof should be shallow, but in this case, the mesh portion of the rib (33) ( Since the holding strength for 38) decreases, it is formed in a U shape or an H shape in order to avoid this. Also, the net portion (38) is the first
As shown in FIG. C, the net (38) has a substantially square hole,
The length of one side can be made quite small, about 0.3 mm.
尚、上述の実施例においては、筒状部の一方の開口に網
部が形成され、その網部には補強用のリブが形成された
フィルターの製造方法及びフィルター製造用金型につい
て述べたが、フィルターとしては、筒状部の一方の開口
に網部が、他方の開口に枠が夫々形成されると共に、そ
の筒状部自体も網部とされ、その各網部には補強用のリ
ブが形成されたフィルター、枠に網部が形成され、その
網部に補強用のリブが形成された偏平なフィルター等も
可能であり、その全体の形状、構造、材料の如何（樹脂
の種類の如何）、筒状部の形状、網部の形状、構造、網
部の線状部の形状等、リブの形状等は任意であり、それ
に応じて、金型を構成する第１及び第２の型のおす型及
びめす型の形状、保温部及び冷却部の形状、構造、配置
等は夫々任意であり、又、冷却部の有無も任意である。In addition, in the above-mentioned embodiment, the description has been given of the filter manufacturing method and the filter manufacturing mold in which the mesh portion is formed in one opening of the tubular portion, and the reinforcing rib is formed in the mesh portion. As a filter, a mesh portion is formed in one opening of the tubular portion and a frame is formed in the other opening, and the tubular portion itself is also a mesh portion, and a reinforcing rib is provided in each mesh portion. It is also possible to use a flat filter with a mesh formed on the frame, and a reinforcing rib formed on the mesh, such as the overall shape, structure, and material (type of resin). Anyway, the shape of the tubular portion, the shape of the net portion, the structure, the shape of the linear portion of the net portion, the shape of the ribs, etc. are arbitrary, and accordingly, the first and second parts constituting the mold are configured. The shape of the male and female molds, the shape, structure, and arrangement of the heat retaining and cooling parts are arbitrary. Further, the presence of the cooling unit is also arbitrary.
尚、上述の実施例においては、金型の第１及び第２の型
のおす型及びめす型に、製造すべきフィルターの網部の
形状に応じた網部成形部が夫々形成されると共に、第１
及び第２の型の網部成形部の近傍に、保温部としての空
間が設けられ、且つ、第１及び第２の型のおす型及びめ
す型の網部成形部以外の部分の近傍に、冷却部としての
空間が設けられ、第１及び第２の型の上記保温部として
の空間に加熱液体を容れると共に、冷却部としての空間
に冷却液体を容れた状態で、金型に融解樹脂を射出注入
するようにした場合について説明したが、フィルターの
殆ど全体が網部（リブの有無を問わない）である場合
は、金型の第１及び第２の型のおす型及びめす型に、製
造すべきフィルターの網部の形状に応じた網部成形部が
夫々形成されると共に、第１及び第２の型の網部成形部
の近傍に、保温部としての空間を設け、冷却部としての
空間は設けず、その保温部としての空間に加熱液体を容
れただけの状態で、金型に融解樹脂を射出注入するよう
にしても良い。又、上述した保温部としての空間には、
加熱液体のみならず、電気ヒーター等を容れても良い。In addition, in the above-mentioned embodiment, the male and female molds of the first and second molds are each formed with a net portion molding portion corresponding to the shape of the net portion of the filter to be manufactured, First
And a space as a heat retaining portion is provided in the vicinity of the net portion forming portion of the second mold, and in the vicinity of portions other than the net portion forming portion of the male and female molds of the first and second molds, A space as a cooling unit is provided, and heating liquid is contained in the spaces as the heat retaining unit of the first and second molds, and molten resin is placed in the mold while the cooling liquid is contained in the space as the cooling unit. Although the case of injection and injection has been described, when almost the entire filter is a net portion (whether or not there are ribs), the first and second molds of the mold include a male mold and a female mold. A net forming portion corresponding to the shape of the net portion of the filter to be manufactured is formed, and a space as a heat retaining portion is provided near the net forming portions of the first and second molds to serve as a cooling portion. No space is provided and only the heated liquid is filled in the space as the heat insulation part, The mold melting resin may be injected injection. In addition, in the space as the heat insulation section described above,
Not only the heating liquid but also an electric heater or the like may be contained.
上述せる本発明によれば、網部も成形によって形成する
ことのできるフィルターの製造方法及びフィルター製造
用金型を得ることができる。According to the present invention described above, it is possible to obtain a filter manufacturing method and a filter manufacturing mold in which the mesh portion can also be formed by molding.
又、本発明製造方法によれば、網部も成形によって形成
することができるので、網を金型内にインサートする必
要がなく成り、手作業が不要と成り、工業用ロボット等
による自動化が容易と成り、成形サイクルが大幅に短縮
され、低廉なフィルターを製造することができる。Further, according to the manufacturing method of the present invention, since the mesh portion can also be formed by molding, there is no need to insert the mesh into the mold, no manual work is required, and automation by an industrial robot or the like is easy. As a result, the molding cycle is greatly shortened, and an inexpensive filter can be manufactured.
又、フィルターの網部は、金型の第１及び第２の型のお
す型及びめす型に形成された網部成形部によって成形さ
れるので、フィルターのばらつきは殆どなくなり、高品
質のフィルターを得ることができる。Further, since the mesh portion of the filter is molded by the mesh molding portion formed in the male and female molds of the first and second molds, there is almost no variation in the filter, and a high-quality filter is obtained. Obtainable.
更に、別の網を金型内にインサートする必要がないの
で、第１及び第２の型を合体するための圧力は、従来例
に比べて遥かに低くて良く、又、金型の摩耗は、従来例
に比べて遥かに少ない。Further, since it is not necessary to insert another mesh into the mold, the pressure for combining the first and second molds may be much lower than that of the conventional example, and the wear of the mold does not occur. , Much less than the conventional example.
第１図は一実施例のフィルターの製造方法を示す図、第
２図は従来のフィルターの製造方法を示す図である。 (4),(25)は保温剤注入口、(6),(15)は保温剤流入部、
(8),(28)は保温部、(7),(27)は保温剤流出部、(5),(26)
は保温剤流出口、(31)は樹脂流入孔、(31a)は管状樹脂
流入孔部、(31b)は円盤状樹脂流入孔部、(31c)は濾斗状
樹脂流入孔部、(38)は網部である。FIG. 1 is a diagram showing a method of manufacturing a filter according to an embodiment, and FIG. 2 is a diagram showing a method of manufacturing a conventional filter. (4) and (25) are heat insulation agent inlets, (6) and (15) are heat insulation agent inlets,
(8), (28) are heat insulation parts, (7), (27) are heat insulation agent outflow parts, (5), (26)
Is a heat retaining agent outlet, (31) is a resin inlet, (31a) is a tubular resin inlet, (31b) is a disc-shaped resin inlet, (31c) is a funnel-shaped resin inlet, (38) Is a net.
Claims (4)
々おす型及びめす型の形成された第１及び第２の型から
成る金型を用い、該金型に融解樹脂を射出注入して、フ
ィルターを製造するようにしたフィルターの製造方法に
おいて、 上記第１及び第２の型の上記おす型及びめす型に、上記
製造すべきフィルターの網部の形状に応じた網部成形部
が夫々形成されると共に、上記第１及び第２の型の上記
網部成形部の近傍に、保温部としての空間が設けられて
成る金型を使用し、 上記第１及び第２の型の上記保温部としての空間に加熱
手段を容れた状態で、上記金型に融解樹脂を射出注入す
ることを特徴とするフィルターの製造方法。1. A mold comprising a first mold and a second mold having a male mold and a female mold, respectively, is used in accordance with the shape of a filter to be manufactured, and a molten resin is injected and injected into the mold. In the method of manufacturing a filter for manufacturing a filter, the male and female molds of the first and second molds each have a net forming portion corresponding to the shape of the net of the filter to be manufactured. Using a mold formed and provided with a space as a heat retaining portion in the vicinity of the net portion molding portion of the first and second molds, the heat retaining material of the first and second molds is used. A method of manufacturing a filter, comprising injecting a molten resin into the mold while injecting a molten resin into a space as a part containing a heating means.
々おす型及びめす型の形成された第１及び第２の型から
成る金型を用い、該金型に融解樹脂を射出注入して、フ
ィルターを製造するようにしたフィルターの製造方法に
おいて、 上記第１及び第２の型の上記おす型及びめす型に、上記
製造すべきフィルターの網部の形状に応じた網部成形部
が夫々形成されると共に、上記第１及び第２の型の上記
網部成形部の近傍に、保温部としての空間が設けられ、
且つ、上記第１及び第２の型の上記おす型及びめす型の
上記網部成形部以外の部分の近傍に、冷却部としての空
間が設けられて成る金型を使用し、 上記第１及び第２の型の上記保温部としての空間に加熱
手段を容れると共に、上記冷却部としての空間に冷却液
体を容れた状態で、上記金型に融解樹脂を射出注入する
ことを特徴とするフィルターの製造方法。2. A mold comprising a first mold and a second mold having a male mold and a female mold, respectively, is used according to the shape of a filter to be manufactured, and a molten resin is injected and injected into the mold. In the method of manufacturing a filter for manufacturing a filter, the male and female molds of the first and second molds each have a net forming portion corresponding to the shape of the net of the filter to be manufactured. While being formed, a space as a heat retaining portion is provided in the vicinity of the net portion molding portion of the first and second molds.
In addition, using a mold in which a space as a cooling unit is provided in the vicinity of a portion other than the net portion molding portion of the male and female dies of the first and second dies, A heating device is contained in the space of the second mold as the heat retaining portion, and a molten resin is injected and injected into the mold while the cooling liquid is contained in the space of the cooling portion. Production method.
々おす型及びめす型の形成された第１及び第２の型から
成るフィルター製造用金型において、 上記第１及び第２の型の上記おす型及びめす型に、上記
製造すべきフィルターの網部の形状に応じた網部成形部
が夫々形成されると共に、上記第１及び第２の型の上記
網部成形部の近傍に、保温部としての空間が設けられて
成ることを特徴とするフィルター製造用金型。3. A filter-manufacturing mold comprising first and second molds having a male mold and a female mold, respectively, according to the shape of the filter to be manufactured. In the male mold and the female mold, a net portion molding portion corresponding to the shape of the net portion of the filter to be manufactured is formed, and in the vicinity of the net portion molding portions of the first and second molds, A mold for manufacturing a filter, characterized in that a space is provided as a heat retaining portion.
々おす型及びめす型の形成された第１及び第２の型から
成るフィルター製造用金型において、 上記第１及び第２の型の上記おす型及びめす型に、上記
製造すべきフィルターの網部の形状に応じた網部成形部
が夫々形成されると共に、上記第１及び第２の型の上記
網部成形部の近傍に、保温部としての空間が設けられ、
且つ、上記第１及び第２の型の上記おす型及びめす型の
上記網部成形部以外の部分の近傍に、夫々冷却部として
の空間が設けられて成ることを特徴とするフィルター製
造用金型。4. A filter-manufacturing mold comprising first and second molds having a male mold and a female mold, respectively, according to the shape of the filter to be manufactured. In the male mold and the female mold, a net portion molding portion corresponding to the shape of the net portion of the filter to be manufactured is formed, and in the vicinity of the net portion molding portions of the first and second molds, A space as a heat insulation part is provided,
Further, a space for cooling is provided near each of the male and female molds of the first and second molds other than the net molding part, and a metal for manufacturing a filter is provided. Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21583389A JPH0649308B2 (en) | 1989-08-22 | 1989-08-22 | Method for manufacturing filter and mold for manufacturing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21583389A JPH0649308B2 (en) | 1989-08-22 | 1989-08-22 | Method for manufacturing filter and mold for manufacturing filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0379320A JPH0379320A (en) | 1991-04-04 |
| JPH0649308B2 true JPH0649308B2 (en) | 1994-06-29 |
Family
ID=16679021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21583389A Expired - Fee Related JPH0649308B2 (en) | 1989-08-22 | 1989-08-22 | Method for manufacturing filter and mold for manufacturing filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649308B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015066122A (en) * | 2013-09-27 | 2015-04-13 | 株式会社東芝 | Vacuum cleaner |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680495A (en) * | 1992-06-16 | 1994-03-22 | Sumitomo Metal Ind Ltd | Method for crystal growth |
| US5423893A (en) * | 1992-06-18 | 1995-06-13 | Kotaki; Daizo | Plastic filter, its injection molding die and producing method |
| US5650181A (en) * | 1993-06-17 | 1997-07-22 | Kotaki; Daizo | Injection molding die for producing plastic filter |
| JP6254794B2 (en) * | 2013-08-20 | 2017-12-27 | 株式会社エンプラス | Mesh filter |
| JP6305116B2 (en) * | 2013-12-13 | 2018-04-04 | 株式会社エンプラス | Mesh filter |
| JP6453667B2 (en) * | 2015-02-23 | 2019-01-16 | 株式会社エンプラス | Mesh filter injection mold and mesh filter injection molding method |
-
1989
- 1989-08-22 JP JP21583389A patent/JPH0649308B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015066122A (en) * | 2013-09-27 | 2015-04-13 | 株式会社東芝 | Vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0379320A (en) | 1991-04-04 |
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