JPS5820341A - Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum - Google Patents

Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum

Info

Publication number
JPS5820341A
JPS5820341A JP11889281A JP11889281A JPS5820341A JP S5820341 A JPS5820341 A JP S5820341A JP 11889281 A JP11889281 A JP 11889281A JP 11889281 A JP11889281 A JP 11889281A JP S5820341 A JPS5820341 A JP S5820341A
Authority
JP
Japan
Prior art keywords
upper die
opening
die
peripheral wall
top plate
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.)
Granted
Application number
JP11889281A
Other languages
Japanese (ja)
Other versions
JPS6139136B2 (en
Inventor
Hiroyuki Mineo
峰尾 博之
Kinji Mineo
欽士 峰尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YAMATO TEKKOSHO KK
Original Assignee
YAMATO TEKKOSHO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YAMATO TEKKOSHO KK filed Critical YAMATO TEKKOSHO KK
Priority to JP11889281A priority Critical patent/JPS5820341A/en
Publication of JPS5820341A publication Critical patent/JPS5820341A/en
Publication of JPS6139136B2 publication Critical patent/JPS6139136B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00Making helical bodies or bodies having parts of helical shape
    • B21H3/08Making helical bodies or bodies having parts of helical shape internal screw-threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To form discontinuous screws at the inlet of the top plate and on the peripheral wall of a ventilation hole at a stroke by thrusting the periphery wall of the hole on the top plate into expandable and contractible upper and lower dies having discontinuous screw forming part. CONSTITUTION:This device is provided with an expandable and contractible lower die 12 having a discontinuous screw forming part 16 in which threaded part 17 and unthreaded part 18 are disposed alternately on outer face, an expandable, contractible and vertically movable upper die 26 having a discontinuous screw forming part 28 in which threaded part 31 and unthreaded part 32 are disposed alternately on inner face, a vertically movable upper die thrusting member 35 outside of the upper die 26, a lower die opening member 40 that moves vertically with the thrusting member 35 inside of the upper die 26, a vertical movement driving device A for the upper die 26, and a vertical movement driving device B for the thrusting member 35 and opening member 40. The periphery wall 9 of the opening of inlet on the top plate is bitten between the lower die 12 and upper die 26 to form a discontinuous screw on the periphery wall of the opening. At this time, a discontinuous screw is formed on the periphery wall of the opening of inlet simultaneously.

Description

【発明の詳細な説明】 こ・ろは、天板の注入口および換気口の周壁に、ねじ部
が円周方向に所定間隔おきに断続しtいるねじ(以下こ
れをとびねじという〕を非常に簡単な操作で一挙に形成
することができ、しかも口部周壁に充分な強度を付与す
ることができ、ひいては品質の良いドラム缶等容器の製
造を非常に能率よくかつ安価に行なうことができる装置
を提供しようとするにある。
[Detailed Description of the Invention] Ko-ro is a special screw that has threaded portions arranged intermittently at predetermined intervals in the circumferential direction (hereinafter referred to as skipped screws) on the peripheral wall of the inlet and ventilation hole of the top plate. An apparatus that can form containers at once with a simple operation, can provide sufficient strength to the mouth peripheral wall, and can manufacture high-quality containers such as drums very efficiently and at low cost. We are trying to provide the following.

この発明を、以下図面に示す実施例に基づいて説明する
This invention will be explained below based on embodiments shown in the drawings.

第1図と第2図において、(1)は機枠、(2)はこれ
に設けられた下部ベッドで、これの上面に基台(3)が
固定されている。(4)は機枠(1)の上端に設けられ
た上部ベッド、+51+61は下部ベッド(2)上の基
台(3)と上部ベッド(4)に相互に所定間隔をあけて
取り付けられた左右一対のとびねじ成形機構で、これら
によって天板(7)の大小2つの口部(8)の周壁(9
)にそれぞれとびねじα(11i−同時に成形し得るも
のである。なおこれらのとびねじ成形機構151 +6
1は相互に大きさが異なるだけで同じ構造を有しており
、したがってこれらのうちの一方の機構(5)について
以下説明する。
In FIGS. 1 and 2, (1) is a machine frame, (2) is a lower bed provided on this frame, and a base (3) is fixed to the upper surface of this. (4) is the upper bed installed at the upper end of the machine frame (1), +51+61 is the left and right side attached to the base (3) on the lower bed (2) and the upper bed (4) at a predetermined distance. A pair of screw forming mechanisms are used to form the peripheral wall (9) of the two large and small openings (8) of the top plate (7).
) can be formed at the same time with each other at the same time.
1 have the same structure but differ from each other in size, and therefore one of these mechanisms (5) will be described below.

02は基台(3)の上面に設けられた下部ダイスで、こ
れはそれぞれ複数個のスリット■を有しかつ相互に密接
した内側ダイス部材α渇と外側ダイ゛ス部材+14とよ
りなり、内側ダイス部材a3の上端部の外周面にとびね
じ成形部Oeを有する外方突部(I!ilが設けられて
いる。そしてねじ成形部Q61は、第61!!!Iと第
7図に示すように、大きい方のとびねじ成形機構(5)
では、4つのねじ部0ηとねじ欠除部Oaとが交互に設
けられ、小さい方のとびねじ成形機構(6)では3つの
ねじ部aηとねじ欠除部OIとが交互に設けられている
ものである。外方突部a9は外側ダイス部材aIJの上
端より上方に突出している。また内側ダイス部材0国の
上端部内面には下方に至るほど順次内側に傾斜した内方
突部α優が設けられている。
02 is a lower die provided on the upper surface of the base (3), which consists of an inner die member α and an outer die member +14, each having a plurality of slits and in close contact with each other. An outer protrusion (I!il) having a jump-threaded part Oe is provided on the outer circumferential surface of the upper end of the die member a3.The threaded part Q61 is shown in No. 61!!!I and FIG. As shown, the larger jump screw forming mechanism (5)
In this case, four threaded parts 0η and threaded missing parts Oa are provided alternately, and in the smaller jump screw forming mechanism (6), three threaded parts aη and threaded missing parts OI are provided alternately. It is something. The outer protrusion a9 protrudes upward from the upper end of the outer die member aIJ. Further, on the inner surface of the upper end of the inner die member 0, inner protrusions α are provided which are sequentially inclined inward toward the bottom.

(社)は下部ダイスαりの周囲に配置された天板載置台
、■はこれの内部に装備せられた下部ダイス押圧装置で
、これは下部ダイス@の周囲に配置されかっばね(至)
によって外側ダイス部材aOの外面に押し付けられる所
要数の押し俸(財)を備えている。
(Company) is a top plate mounting stand placed around the lower die α, ■ is a lower die pressing device installed inside this, and this is placed around the lower die @.
A required number of press balls (goods) that are pressed against the outer surface of the outer die member aO are provided.

凶は上部ベッド(4)の下面に取り付けられた筒形ガイ
ド部材、■はこのガイド部材(5)の内側に配置された
上部ダイスで、これの下端部の内側にとびねじ成形部(
至)を有する内方突部−が設けられるとともに、同下端
部の外側に横断面く字形の外方突部■が設けられており
、また上部ダイス(5)には下方に開放した所要数のス
リット圓が設けられている。とびねじ成形部■は、大き
い方のとびねじ成形機構(51では、4つのねじ部(3
1)とねじ欠除部■とが交互に、設けられ、小さし1方
のとびねじ成形機構(6)では、3つのねじ部1311
とねじ欠除部(至)とが交互に設けられており、かつこ
れは上記下部ダイスα2のとびねじ成形部αeのねじ部
αでとねじ欠除部0秒にそれぞれ対応するように配置さ
れている。(至)は上部ダイス(2)を支持する支軸で
、これは上部ベッド(4)の貫通孔に挿通せられ、ベッ
ド(4)より上方に突出した部分がばね(財)によって
受けられていて、支軸(至)は常に上方に付勢せられて
おり、これによって上部ダイス(至)は昇降自在となさ
れている。
The symbol is a cylindrical guide member attached to the lower surface of the upper bed (4), and the symbol ■ is an upper die placed inside this guide member (5), and a jump screw forming part (
An inward protrusion (-) with a diameter of 1 to 1) is provided, and an outer protrusion (-) with a dog-shaped cross section is provided on the outside of the lower end thereof, and the upper die (5) has a required number of downwardly open protrusions. A slit circle is provided. The jump screw forming part ■ has four screw parts (3 in the larger jump screw forming mechanism (51)
1) and the screw missing portions (■) are provided alternately, and one of the smaller screw forming mechanisms (6) has three screw portions 1311.
and thread missing parts (to) are provided alternately, and these are arranged so as to correspond to the thread part α of the skipped thread forming part αe of the lower die α2 and the thread missing part 0 seconds, respectively. ing. (to) is a support shaft that supports the upper die (2), which is inserted into the through hole of the upper bed (4), and the part that protrudes upward from the bed (4) is supported by a spring. The support shaft (to) is always biased upward, so that the upper die (to) can be raised and lowered.

(至)は筒形ガイド部材−と上部ダイス(イ)との間に
配置せられた略筒形の上部ダイス押込み部材で、これの
下端部内側には上部ダイス押込み用傾斜部国が設けられ
ており、この傾斜部(至)が上部ダイス■の外方突部(
至)と係り合せられる。(9)は上部ダイス押込み部材
C151を支持する複数本の支軸で、これらは上部ベッ
ド(4)の貫通孔に挿通され、ベッド(4)より上方に
突出した部分かばね(至)によって受けられていて、支
軸(至)は常に上方に付勢せられており、これによって
上部ダイス押込み部材(至)は上部ダイス■とは別に昇
降し得るようになされている。
(To) is a substantially cylindrical upper die pushing member disposed between the cylindrical guide member and the upper die (A), and a sloped part for pushing the upper die is provided inside the lower end of this member. This inclined part (to) is the outward protrusion of the upper die (■).
to). (9) is a plurality of support shafts that support the upper die pushing member C151, and these are inserted into the through holes of the upper bed (4) and are received by the springs (to) that protrude upward from the bed (4). The support shaft (1) is always biased upward, so that the upper die pushing member (1) can be raised and lowered independently of the upper die (2).

+401は上部ダイス(社)の内側に配置せられた下部
ダイス押開き部材で、これは取付板(4υに垂下状によ
って上部ダイス押込み部材(至)と一体に結合されてお
り、下部ダイス押開き部材+401はこの押込み部材(
至)と−緒に昇降するものである。(4りは下部ダイス
押開き部材!401の下端部外面に設けらレタテーパ一
部で、これが下部ダイスuz内に挿入せられることによ
り、下部ダイスO2上端のとびねじ成形部(161を外
側に押し開くようになされている。(4■は上部ベッド
(4)の上面に4つの軸受(441により水平状に渡さ
れたカム軸で、これには第5図に示す形状を有する1枚
のカム(5)とこれの両側の2枚のカムの)とがそれぞ
れ組で所定間隔をあけた状態に取り付けられている。+
451は支軸(至)の上端にピンにで止められたローラ
で、これにはカム(5)が当接せしめられている。(4
?)は複数本の支軸(支)の上端にそれぞれピンにで止
められたローラで、これにはカム(B)が当接せしめら
れている。
+401 is a lower die push-opening member placed inside the upper die Co., Ltd. This is integrally connected to the upper die pusher member (to) by a mounting plate (4υ) hanging down, and the lower die push-opener Member +401 is this pushing member (
(to) (4 is a part of the letter taper provided on the outer surface of the lower end of the lower die push-opening member! 401. By inserting this into the lower die uz, it pushes the jump screw forming part (161) of the upper end of the lower die O2 outward. (4) is a camshaft horizontally extended by four bearings (441) on the upper surface of the upper bed (4), which is equipped with one cam having the shape shown in Figure 5. (5) and the two cams on both sides of this are installed in sets with a predetermined distance between them.+
451 is a roller pinned to the upper end of the support shaft, and the cam (5) is brought into contact with this roller. (4
? ) are rollers that are fixed to the upper ends of a plurality of support shafts (supports) with pins, respectively, and a cam (B) is brought into contact with this roller.

つぎに、上記ねじ成形装置の作用を説明する。Next, the operation of the above thread forming device will be explained.

まず第1図と第2図に示すように、天板載置台(21)
の上に天板(7)をのせる。この天板(7)には予め抜
き絞り加工により大小2つの口部(8)が設けられかつ
各口部(8)の周縁に内方突縁011を有する円筒形の
周壁(9)が設けられている。これらの口部(8)の周
壁(9)のとびねじ成形は同時に全く同様に行なうので
、以下一方の口部(8)について説明する。載置台(2
)上にのせられた天板口部(8)の周近くに配置され、
その上端の内方突縁αl)が下部ダイス+13の外方突
部a9の上面にのせられる。そしていま、カム軸啜が回
転してカム(5)と伊)が回転することにより、上部ダ
イス(イ)と、上部ダイス押込み部材(至)と、下部ダ
イス押開き部材(4IIIとが最初−緒に降下せしめら
れる。第311!!Iに示すように、上部ダイス(21
)下端のとびねじ成形部(2)が天板(7)の口部周壁
(9)のレベルに保持され、この状態で上部ダイス押込
み部材(至)が降下することにより、これの傾斜部(至
)によって上部ダイス(至)の外方突部■が内側に押し
込まれ、上部ダイス■のとびねじ成形部■の内面が口部
周壁(9)の外面には!接した状態となる。このとき、
下部ダイス押開き用部材禰はその下半部だけが下部ダイ
スQBの中央の孔に上から差し込まれており、下部ダイ
スQ5は押し開かれていない。つぎに第4図に示すよう
に、カム中)の゛作用により上部ダイス押込み部材(至
)と下部ダイス押開き部材(401とがさらに一緒に降
下するが、上部ダイス(イ)の外方突部■に対して押込
み部材(至)内側の垂直面が当接するため上部ダイス(
財)はもはや内側に縮まることなくそのま\の状態すな
わちそのとびねじ成形部■が天板(7)の口部周壁(9
)の外周面に当接した状態に保持される。そしてこの状
態において押開き部材#、4eが下部ダイスO2を内側
より押し開き、この下部ダイスα2のとびねじ成形部α
eが上部ダイス(イ)のとびねじ成形部(財)に口部周
壁(9)を介して押圧せられることにより、口部周壁(
9)にねじ部(10りとねじ欠除部(10b)とが交互
に配置されたとびねじα〔が−挙に形成せられる。
First, as shown in Figures 1 and 2, the top plate mounting stand (21)
Place the baking sheet (7) on top. This top plate (7) is provided with two large and small openings (8) by punching and drawing in advance, and a cylindrical peripheral wall (9) having an inner protruding edge 011 is provided at the periphery of each opening (8). It is being Since the peripheral walls (9) of these openings (8) are formed into screws at the same time in exactly the same manner, one of the openings (8) will be explained below. Mounting table (2
) is placed near the periphery of the top plate opening (8) placed on the top plate,
The inner protrusion αl) at the upper end is placed on the upper surface of the outer protrusion a9 of the lower die +13. Now, by rotating the camshaft and rotating the cam (5), the upper die (A), the upper die pushing member (to), and the lower die pushing open member (4III) are initially As shown in No. 311!!I, the upper die (21
) The lower end screw forming part (2) is held at the level of the opening peripheral wall (9) of the top plate (7), and in this state, the upper die pushing member (to) descends, so that the inclined part ( The outer protrusion ■ of the upper die (~) is pushed inward by the upper die (~), and the inner surface of the jump screw forming part ■ of the upper die (■) is on the outer surface of the mouth peripheral wall (9)! They are in contact with each other. At this time,
Only the lower half of the lower die push-open member is inserted into the central hole of the lower die QB from above, and the lower die Q5 is not pushed open. Next, as shown in Fig. 4, the upper die pushing member (401) and the lower die pushing open member (401) further descend together due to the action of the cam (inside the cam), but the outer thrust of the upper die (a) Since the vertical surface inside the pushing member (to) comes into contact with part ■, the upper die (
The product) no longer shrinks inward and remains as it is, that is, the screw molded part ■ is attached to the mouth peripheral wall (9) of the top plate (7).
) is held in contact with the outer peripheral surface of the In this state, the push-opening members # and 4e push open the lower die O2 from the inside, and the screw forming part α of the lower die α2
When e is pressed against the screw-forming part (material) of the upper die (a) through the mouth peripheral wall (9), the mouth peripheral wall (
9), a double screw α in which threaded portions (10) and threaded portions (10b) are alternately arranged is formed at once.

このようにしてつくられたとびねじOαのねじ部(10
B)は外側の雄ねじが有効である。そしてねじ欠除部(
10b)はねじ部(10m)の谷部の底面と同一面とな
されており、このとびねじαωを有する口部周壁(9)
に蓋(図示路)がねじ被せられるようになっている。
The threaded part of the screw Oα made in this way (10
For B), the outer male thread is effective. And the screw missing part (
10b) is made flush with the bottom surface of the valley of the threaded portion (10m), and the mouth peripheral wall (9) having this dovetail screw αω
The lid (as shown) can be screwed onto the top.

なお、上記実施例においては、左右一対のとびねじ成形
機構+51 +61が設けられて、天板(7)の大小の
口部(8)の周壁(9)に同時にとびねじαωが形成も
よいし、天板(7)に大きい口部(8)が1つだけ設け
られていて、これの周壁(9)にとびねじ(101を形
成する場合もある。また、上記実施例においては、上部
ダイス(21)等がカム機構よりなる駆動手段によって
昇降するようになされているが、これらはその他エヤシ
リンダ等の駆動手段により昇降するようにしてもよい。
In the above embodiment, a pair of left and right setscrew forming mechanisms +51 and +61 may be provided to simultaneously form setscrews αω on the peripheral wall (9) of the large and small openings (8) of the top plate (7). In some cases, the top plate (7) is provided with only one large opening (8), and a jump screw (101) is formed on the peripheral wall (9) of this. (21) etc. are raised and lowered by a driving means consisting of a cam mechanism, but these may be raised and lowered by other driving means such as an air cylinder.

この発明によるドラム缶等容器の天板口部周壁のと゛び
ねじ成形装置は、上述のように、外面にねじ部αηおよ
びねじ欠除部αωが交互に配置されたとびねじ成形部α
eを有しかつ拡大縮小自在となされた下部ダイス0りと
、内面にねじ部(31)およびねじ欠除部■が交互に配
置されたとびねじ成形部(支)を有しかつ拡大縮小自在
となされた昇降自在な上部ダイス■と、上部ダイス(イ
)の外側に配置された昇降自在な上部ダイス押込み部材
(至)と、上部ダイス(イ)の内側に配置されかつ押込
み部材(至)と−緒に昇降するようになされた下部ダイ
ス押開き部材101と、上部ダイス□□□の昇降駆動手
段内と、上部ダイス押込み部材(至)および下部ダイス
押開き部材(社)の昇降駆動手段(B)とを備えており
、載置台C11l上にのせられた天板(7)の口部(8
)の周壁(9)が下部ダイスa渇のとびねじ成形部(イ
)の外周近くに配置され、駆動手段体)により降下せし
められた上部ダイス(至)のとびねじ成形部■が天板(
7)の口部周壁(9)の外周近くに配置され、駆動手段
(B)により上部ダイス押込み部材(至)と下部ダイス
押開き部材+401とが上部ダイス(5)よりさらに降
下せしめられ、押込み部材(至)により上部ダイス(支
))のとびねじ成形部(支)が内側へ押し込まれて、こ
れが天板(7)の口部周壁(9)の外面に当接せしめら
れるとともに、押開き部材(至)により下部ダイス(1
21のとびねじ成形部(旧が外側に押し開かれて、これ
が口部周壁(9)を介して上部ダイス(財)の、とびね
じ成形部(28)にかみ合わせられることにより、口部
周壁(9)にとびねじ(101が形成せられ、るように
なされているもので、天板の注入口および換気口の周壁
に、ねじ部(10B)が円周方向に所定間隔おきに断続
したとびねじαωを非常Gこ簡単な操作で一挙に形成す
ることができ、しかもとびねじOeのねじ欠除部(10
b)が補強作用を果すので口部周壁(9)に充分な強度
を付与することができ−ひいては品質の良いドラム缶等
容器の製造を非常に能率よくかつ安価に行なうことがで
きるという効果を奏する。
As described above, the apparatus for forming the circumferential wall of the top plate opening of a container such as a drum according to the present invention has a double thread forming part α in which the threaded parts αη and the threaded missing parts αω are alternately arranged on the outer surface.
It has a lower die 0 which can be enlarged and contracted, and has a double screw forming part (support) in which threaded parts (31) and threaded parts (3) are arranged alternately on the inner surface, and which can be enlarged and reduced. an upper die that can be raised and lowered, and an upper die pushing member (to) that can be raised and lowered that is placed outside the upper die (a), and a pushing member (to) that is placed inside the upper die (a). The lower die push-opening member 101 is moved up and down together with the lower die push-opening member 101, the elevation drive means for the upper die □□□, and the elevation drive means for the upper die push-in member (to) and the lower die push-opening member (company). (B), and the opening (8) of the top plate (7) placed on the mounting table C11l.
The peripheral wall (9) of the lower die (a) is arranged near the outer periphery of the jump screw forming part (a) of the lower die (a), and the jump screw forming part (2) of the upper die (to) lowered by the driving means () is placed on the top plate (
7) is arranged near the outer periphery of the mouth peripheral wall (9), and the upper die pushing member (to) and the lower die pushing opening member +401 are further lowered from the upper die (5) by the driving means (B), and the pushing The screw-forming part (support) of the upper die (support) is pushed inward by the member (to), and this is brought into contact with the outer surface of the mouth peripheral wall (9) of the top plate (7), and is pushed open. The lower die (1
21's screw-formed part (former) is pushed outward and is engaged with the screw-formed part (28) of the upper die through the mouth peripheral wall (9), whereby the mouth peripheral wall ( 9) is formed with jump screws (101), and the screw portions (10B) are intermittent at predetermined intervals in the circumferential direction on the peripheral wall of the injection port and ventilation port of the top plate. The thread αω can be formed all at once with a very simple operation, and the missing thread part (10
Since b) has a reinforcing effect, it is possible to impart sufficient strength to the mouth peripheral wall (9), and as a result, high-quality containers such as drums can be manufactured very efficiently and at low cost. .

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの発明の実施例を示すもので、第1図は縦断面
図で、とびねじ成形前の状態を示している。第2図は第
1図の要部拡大断面図、第3図は同要部拡大断面図で、
とびねじ成形の中間の状態を示している。第4図は同要
部拡大断面図で、とびねじ成形後の状態を示している。 第5図はカムの拡大正面図、第6図と第7図は大小それ
ぞれの下部ダイス゛を示す平面図である。 +51 +6)・・・とびねじ成形機構、(7)・・・
天板、(8)・・・口部、(91−6周壁、Q(I−−
−とびねじ、(10&)−・・・ねじa、(Rob)・
・・ねじ欠除部、O2・・・下部ダイス、O51−・・
外方突部、(161−・とびねじ成形部、Q?)・・・
ねじ部1α印・・・ねじ欠除部、器・鳴・・内方突部、
(21)・11e天板載置台、(イ)・・・上部ダイス
、□□□・・・内方突部、■・・・とびねじ成形部、(
至)・・・外方突部、all)・・・ねじ部、@・・・
ねじ欠除部、(至)・拳・上部ダイス押込み部材、(3
6)・・・・傾斜部、(4ω・・・下部ダイス押開き部
材、(A)(B)・・・カム(昇降駆動手段)。 以  上 特許出願人  株式会社大和鉄工所 第5図
The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view, showing the state before the screw is formed. Figure 2 is an enlarged cross-sectional view of the main part of Figure 1, and Figure 3 is an enlarged cross-sectional view of the same main part.
This shows an intermediate state of screw forming. FIG. 4 is an enlarged cross-sectional view of the same essential part, showing the state after forming the jumper screw. FIG. 5 is an enlarged front view of the cam, and FIGS. 6 and 7 are plan views showing the lower dies of different sizes. +51 +6)... Jump screw forming mechanism, (7)...
Top plate, (8)...mouth, (91-6 peripheral wall, Q(I--
- Jumper screw, (10 &) - Screw a, (Rob)
...Screw missing part, O2...Lower die, O51-...
Outer protrusion, (161-・Screw molded part, Q?)...
Threaded part 1α mark...Thread missing part, instrument/sound...inward protrusion,
(21)・11e Top plate mounting stand, (a)... Upper die, □□□... Inner protrusion, ■... Screw forming part, (
to)...Outward protrusion, all)...Threaded part, @...
Screw missing part, (to), fist, upper die pushing member, (3
6)... Inclined part, (4ω... lower die push-opening member, (A) (B)... cam (elevating drive means). Patent applicant: Daiwa Iron Works Co., Ltd. Figure 5

Claims (1)

【特許請求の範囲】 外周面にねじ部αηおよびねじ欠除部QBが交互に配置
されたとびねじ成形部αeを有しかつ拡大縮小自在とな
された下部ダイス(2)と、内周面にねじ部(9)およ
びねじ欠除部■が交互に配置されたとびねじ成形部■を
有しかつ拡大縮小自在となされた昇降自在な上部ダイス
■と、上部ダイス(至)の外側に配置された昇降自在な
上部ダイス挿込み部材(至)と、上部ダイス翰の内側に
配置されかつ押込み部材(至)と−緒に昇降するように
な゛された下部ダイス押開き部材(至)と、上部ダイス
(至)の昇降駆動手段囚と、上部ダイス押込み部材(至
)および下部ダイス押開き部材(社)の昇降駆動手段C
B>とを備えており、載置台(2)上にのせられた天板
(7)の口部(8)の周壁(9)が下部ダイスαりのと
びねじ成形部(イ)の外周近くに配置され、駆動手段(
6)により降下せしめられた上部ダイス(至)のとびね
じ成形部@示天板(7)の口部周壁(9)の外周近くに
配置され、駆動手段の)により上部ダイス押込み部材(
2)と下部ダイス押開き部材−とが上部ダイス■よりさ
らに降下せしめられ、押込み部材接せしめられるととも
に、押開き部材(至)により下部ダイス0のとびねじ成
形部aaが外側に押し開かれて、これが口部周壁(9)
を介して活部ダイス(至)のとびねじ成形部(支)にか
み合わせられるこ 。 と紀より、口部周壁(9)にとびねじ(1Gが形成せら
   −れるようになされているドラム缶等容器の天板
口部周壁のとびねじ成形装置っ
[Scope of Claims] A lower die (2) having a double threaded part αe in which threaded parts αη and threaded parts QB are alternately arranged on the outer circumferential surface and can be expanded and contracted; An upper die ■ which can be raised and lowered and which has a double thread forming part ■ in which threaded parts (9) and screw missing parts ■ are arranged alternately and can be expanded and contracted; an upper die insertion member (end) that can be raised and lowered; a lower die push-opening member (end) arranged inside the upper die holder and moved up and down together with the pushing member (end); Lifting/lowering driving means C for the upper die (to) and lifting/lowering driving means C for the upper die pushing member (to) and the lower die pushing/opening member (sha)
B>, and the peripheral wall (9) of the opening (8) of the top plate (7) placed on the mounting table (2) is near the outer periphery of the jump screw forming part (A) of the lower die α. and the drive means (
The screw forming part of the upper die (to) lowered by 6) is arranged near the outer periphery of the opening peripheral wall (9) of the display plate (7), and the upper die pushing member (
2) and the lower die push-opening member are further lowered from the upper die ■ and brought into contact with the push-opening member, and the jump-threaded part aa of the lower die 0 is pushed outward by the push-opening member (toward). , this is the oral wall (9)
It can be engaged with the jump screw forming part (support) of the active part die (end) through. Toki has developed a machine for forming a jump screw for the peripheral wall of the top plate opening of containers such as drums, in which a jump screw (1G) is formed on the peripheral wall (9) of the opening.
JP11889281A 1981-07-28 1981-07-28 Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum Granted JPS5820341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11889281A JPS5820341A (en) 1981-07-28 1981-07-28 Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11889281A JPS5820341A (en) 1981-07-28 1981-07-28 Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum

Publications (2)

Publication Number Publication Date
JPS5820341A true JPS5820341A (en) 1983-02-05
JPS6139136B2 JPS6139136B2 (en) 1986-09-02

Family

ID=14747728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11889281A Granted JPS5820341A (en) 1981-07-28 1981-07-28 Discontinuous screw forming device on peripheral wall of top plate opening of container such as drum

Country Status (1)

Country Link
JP (1) JPS5820341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1663540A2 (en) * 2003-08-28 2006-06-07 Dayton Systems Group, Inc. Container end forming system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1663540A2 (en) * 2003-08-28 2006-06-07 Dayton Systems Group, Inc. Container end forming system
EP1663540A4 (en) * 2003-08-28 2009-09-02 Dayton Systems Group Inc Container end forming system
US7841222B2 (en) 2003-08-28 2010-11-30 Dayton Systems Group, Inc. Container end forming system

Also Published As

Publication number Publication date
JPS6139136B2 (en) 1986-09-02

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