JPH0117375Y2 - - Google Patents
Info
- Publication number
- JPH0117375Y2 JPH0117375Y2 JP18044086U JP18044086U JPH0117375Y2 JP H0117375 Y2 JPH0117375 Y2 JP H0117375Y2 JP 18044086 U JP18044086 U JP 18044086U JP 18044086 U JP18044086 U JP 18044086U JP H0117375 Y2 JPH0117375 Y2 JP H0117375Y2
- Authority
- JP
- Japan
- Prior art keywords
- processing position
- thread cutting
- mold
- feeding mechanism
- turret
- 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
Links
- 238000003825 pressing Methods 0.000 claims description 35
- 230000032258 transport Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 26
- 230000008602 contraction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
この考案は缶蓋の着脱を図る缶胴のネツキング
部にねじ加工を行う際の缶胴の保持と、ねじ加工
完了後に、加工位置の缶胴を迅速に出口側へ送り
出すようにした缶のねじ切り装置に関するもので
ある。[Detailed description of the invention] [Field of industrial application] This invention is used to hold the can body when threading is performed on the netting part of the can body for attaching and detaching the can lid, and to hold the can body at the processing position after threading is completed. This invention relates to a can threading device that quickly sends the barrel to the exit side.
［従来の技術］
従来、缶蓋を有する缶には２種類あつて、例え
ば、茶筒のように缶蓋がかぶさる缶胴のネツキン
グ部にねじが切つていないものとねじ加工したも
のとがある。[Prior Art] Conventionally, there are two types of cans with lids; for example, there are those that do not have threads cut into the netting part of the can body that the can lid covers, such as tea canisters, and those that have threads. .
ねじ加工はねじ切り装置によつて行うもので、
第１６図に一般的な缶胴のねじ切り装置を示して
いる。 Thread processing is performed using a thread cutting device.
FIG. 16 shows a general can body thread cutting device.
ねじ切り装置は、互いに対向し合う離接可能な
上下の回転ローラ１０１，１０３に、搬送装置１
０５によつて送られてくる缶胴１０７を一個ずつ
送り出し装置１０９によつて送り込み、上下の回
転ローラ１０１，１０３によつて第１５図に示す
如く缶胴１０７のネツキング部１１１に３条又は
４条のねじ切り１１３を行う構造となつている。 The thread cutting device includes upper and lower rotary rollers 101 and 103 that face each other and are separable, and a conveying device 1.
The can bodies 107 sent by the can body 107 are fed one by one by the feeding device 109, and the upper and lower rotating rollers 101, 103 form three or four strips in the necking part 111 of the can body 107 as shown in FIG. It has a structure for threading 113 of the strip.
［考案が解決しようとする問題点］
前記した如く缶胴１０７のネツキング部１１１
のねじ切りは、上下の回転ローラ１０１，１０３
によつて回転しながら全周面にわたつて通常は３
条から４条ねじがスパイラル状に切られるように
なるが、この時、回転しながらねじ切りが行われ
るため第１５図に示す如くねじとねじの位置がづ
れて正しく設定された間隔Ｄとならない問題があ
つた。このために、缶蓋をした時に正しく密着し
ない密着不良品が発生する恐れがあるところか
ら、缶胴１０７のネツキング部１１１に外型と中
型とでねじ切り（プレス加工）する装置が考えら
れている。[Problems to be solved by the invention] As described above, the netting portion 111 of the can body 107
Thread cutting is performed using upper and lower rotating rollers 101, 103.
Normally 3
A four thread thread is cut in a spiral shape from the thread, but at this time, the thread cutting is performed while rotating, which causes the problem that the positions of the threads are shifted and the correctly set distance D is not achieved, as shown in Figure 15. It was hot. For this reason, since there is a risk of products with poor adhesion that do not fit properly when the can lid is put on, a device is being considered that threads (presses) the netting part 111 of the can body 107 with the outer mold and the middle mold. .
この装置は、加工位置の缶胴のネツキング部に
対して外側と内側から外型と中型とを圧着させて
ねじ加工を行う。このため、加工位置の缶胴を正
しく保持しておく必要があることと、ねじ加工完
了後、迅速に加工位置の缶胴を出口側へ送り出す
必要がある。 This device performs thread processing by crimping an outer die and a middle die from the outside and the inside against the netting portion of the can body at the processing position. Therefore, it is necessary to correctly hold the can body in the processing position, and it is necessary to quickly send the can body in the processing position to the exit side after threading is completed.
そこで、この考案は、加工位置に缶胴の位置決
め保持が図れるようにすると共に加工完了後の缶
胴を加工位置から迅速に出口側へ送り出せるよう
にした缶のねじ切り装置を提供することを目的と
している。 Therefore, the object of this invention is to provide a can threading device that can position and maintain the can body at the processing position and also enable the can body to be quickly sent out from the processing position to the exit side after processing is completed. It is said that
［問題点を解決するための手段］
前記目的を達成するために、この考案にあつて
は、入口に待機する缶胴を加工位置と、加工位置
から出口側へ間欠的に送るターレツトを備えた缶
胴送り機構の一側に、前記加工位置の缶胴のネツ
キング部に外型と内型とでねじを切るねじ切り本
体を設ける一方、缶胴送り機構の他側に、加工位
置の缶胴の底部端縁と当接可能な固定ストツパー
と、缶胴の底部周面に作用する拡縮可能な外側押
圧体と、缶胴の底部内面に作用する進退可能な内
側押圧体とから成る缶胴保持機構を設けてある。[Means for Solving the Problems] In order to achieve the above object, this invention is equipped with a processing position for the can body waiting at the inlet, and a turret that intermittently transports the can body from the processing position to the exit side. A thread cutting body is provided on one side of the can body feeding mechanism to cut a thread using an outer die and an inner die in the netting part of the can body at the processing position, while a thread cutting body is provided on the other side of the can body feeding mechanism. A can body holding mechanism consisting of a fixed stopper that can come into contact with the bottom edge, an expandable outer pressing body that acts on the bottom peripheral surface of the can body, and an inner pressing body that can move back and forth and act on the bottom inner surface of the can body. is provided.
［作用］
かかるねじ切り装置において、入口に待機する
缶胴はターレツトによつて加工位置に送り込まれ
る。加工位置の缶胴の底部は外側押圧体と内側押
圧体とによつて保持される一方、缶胴のネツキン
グ部は外型と中型とでねじ切りされる。[Operation] In such a thread cutting device, the can body waiting at the inlet is sent to the processing position by the turret. The bottom of the can body in the processing position is held by the outer pressing member and the inner pressing member, while the netting portion of the can body is threaded between the outer mold and the middle mold.
ねじ切り完了後、外側押圧体は外側へ移動し、
内側押圧体は後方へ移動する。この時、缶胴は固
定ストツパーによつて後方の動きが規制され加工
位置に残るようになる。加工位置の缶胴は、ター
レツトの回転で出口側へ送り出される。と同時に
入口に待機する缶胴は加工位置に送られ、前記し
た作動手順で、順次缶胴のねじ切りが行われるよ
うになる。 After thread cutting is completed, the outer pressing body moves outward,
The inner pressing body moves rearward. At this time, the can body is prevented from moving backward by the fixed stopper, and remains in the processing position. The can body at the processing position is sent to the exit side by the rotation of the turret. At the same time, the can bodies waiting at the entrance are sent to the processing position, and the can bodies are sequentially threaded according to the above-described operating procedure.
［実施例］
以下、第１図乃至第１４図の図面を参照しなが
らこの考案の一実施例を詳細に説明する。[Embodiment] Hereinafter, an embodiment of this invention will be described in detail with reference to the drawings of FIGS. 1 to 14.
図中１は缶胴送り機構を示している。缶胴送り
機構１は一対のターレツト３，３とターレツトガ
イドレール５，５とから成り、ターレツト３，３
には対角線上に４個所缶胴７が収まる凹部９が形
成されている。ターレツト３のターレツト軸１１
は、図外のゼネバ駆動機構によつて1/4回転づつ
回転自在に制御される。これにより、前記各凹部
９は加工位置１３に対し間欠的に位置決めされる
ようになる。 In the figure, 1 indicates the can body feeding mechanism. The can barrel feeding mechanism 1 consists of a pair of turrets 3, 3 and turret guide rails 5, 5.
Concave portions 9 into which the can bodies 7 are accommodated are formed at four diagonal locations in the can body. Turret shaft 11 of turret 3
is rotatably controlled by a Geneva drive mechanism (not shown) in 1/4 rotation increments. As a result, each of the recesses 9 is intermittently positioned relative to the processing position 13.
ターレツトガイドレール５は、ターレツト３の
凹部９内に収まつた缶胴７を誘導案内するもの
で、取付台１５に固定支持されると共にターレツ
ト３の下側周縁に沿つて配置されている。ガイド
レール５の一方は前工程で加工された缶胴７を受
け入れる入口１７側となつており、他方は出口１
９側となつている。 The turret guide rail 5 guides the can body 7 housed in the recess 9 of the turret 3, and is fixedly supported by the mounting base 15 and arranged along the lower peripheral edge of the turret 3. One side of the guide rail 5 is the inlet 17 side that receives the can body 7 processed in the previous process, and the other side is the outlet 17 side.
It is on the 9th side.
したがつて、ターレツト３が間欠的、即ち、1/
４回転ずつ回転することで入口１７側に待機する
缶胴７は一個ずつ加工位置１３へ送られる、と同
時に加工位置１３の缶胴７は出口１９側へ送り出
されるようになる。 Therefore, turret 3 is intermittently, i.e. 1/
By rotating four revolutions at a time, the can bodies 7 waiting on the inlet 17 side are sent one by one to the processing position 13, and at the same time, the can bodies 7 at the processing position 13 are sent out to the outlet 19 side.
缶胴送り機構１の加工位置１３の一側は、外型
２１と中型２３とを有するねじ切り本体２５とな
つている。 One side of the processing position 13 of the can body feeding mechanism 1 is a threaded main body 25 having an outer mold 21 and a middle mold 23.
ねじ切り本体２５は図外の駆動装置によつて駆
動される回転板２７と、回転板２７に偏位して枢
支されたリンク杆２９とによつて外筒３０に対し
往復動自在に嵌挿されたスリーブ３１のフランジ
３１ａにボルト３３によつて固着され、スリーブ
３１の往動ストローク（第３図矢印イ）は、加工
位置１３の缶胴７のネツキング部７ａが外型２１
と中型２３の間に臨むよう設定されている。 The thread cutting main body 25 is reciprocatably inserted into the outer cylinder 30 by a rotary plate 27 driven by a drive device (not shown) and a link rod 29 that is offset and pivotally supported by the rotary plate 27. The sleeve 31 is fixed to the flange 31a of the sleeve 31 by bolts 33, and the forward stroke of the sleeve 31 (arrow A in FIG. 3) causes the netting portion 7a of the can body 7 at the processing position 13 to
It is set to face between the and medium-sized 23.
また、ねじ切り本体２５には、前記した外型２
１がリング状に４個所配置され、外型２１の内側
にはねじの雌型部２１ａが形成されている。 In addition, the thread cutting main body 25 has the above-mentioned outer mold 2.
1 are arranged in four locations in a ring shape, and a female threaded part 21a is formed inside the outer mold 21.
ねじの雌型部２１ａは４個所でスパラル状とな
るよう形成され、例えば、第４図において最上位
の外型２１と雌型部２１ａは缶胴７のネツキング
部７ａの先端側となり、以下、缶胴本体側へ向け
てスパイラル状に続く形状に設定されている。 The female mold part 21a of the screw is formed in a spiral shape at four places. For example, in FIG. It is set in a spiral shape that continues toward the can body side.
外型２１はねじ切り本体２５の案内体３５にガ
イドされて放射方向にスライドする外型支持部材
３７に締結ボルト３９によつて着脱自在に取付け
られ、必要に応じて外型２１の交換が可能となつ
ている。外型２１の各支持部材３７のローラ３７
ａは図外の駆動装置によつて回転するカム板３９
により押圧され、押圧時のストロークは最大で約
80mmに設定されている。このストロークにより、
外型２１は缶胴７のネツキング部７ａの外周に軽
く接触し合うように位置決めされる。 The outer die 21 is detachably attached to an outer die support member 37 that slides in the radial direction while being guided by a guide member 35 of the thread cutting main body 25, using fastening bolts 39, and the outer die 21 can be replaced as necessary. It's summery. Rollers 37 of each support member 37 of the outer mold 21
a is a cam plate 39 rotated by a drive device not shown;
The maximum stroke when pressing is approximately
It is set to 80mm. With this stroke,
The outer mold 21 is positioned so as to lightly contact the outer periphery of the netting portion 7a of the can body 7.
中型２３は外型２１と対向し合う内側にリング
状に配設され、中型２３には前記外型２１のねじ
の雌型部２１ａと対向し合うねじの雄型部２３ａ
が形成されている。中型２３のフランジ部４１
は、ねじ切り本体２５にスライド自在に支持され
た中型支持部材４３に締結ボルト４５によつて着
脱自在に取付けられ、フランジ部４１は缶胴７の
ネツキング部７ａの先端が当接することで、ネツ
キング部７ａの位置決めを図る位置決め機能を備
えている。また、締結ボルト４５を弛めることに
よつて必要に応じて中型２３の交換が可能となつ
ている。なお、中型４１の寸法R1は缶胴内径の
１／２に設定されている。この時の外型２１の寸法
R2は缶胴外径の1/2となつている。 The middle mold 23 is disposed in a ring shape on the inside facing the outer mold 21, and the middle mold 23 has a female threaded part 21a of the outer mold 21 and a male threaded part 23a facing each other.
is formed. Flange portion 41 of medium size 23
is removably attached to a medium-sized support member 43 that is slidably supported by the threaded main body 25 by a fastening bolt 45, and the flange portion 41 is connected to the netting portion by the tip of the netting portion 7a of the can body 7 coming into contact with the flange portion 41. It has a positioning function for positioning 7a. Furthermore, by loosening the fastening bolts 45, the intermediate die 23 can be replaced as necessary. Note that the dimension R 1 of the medium size 41 is set to 1/2 of the inner diameter of the can body. Dimensions of the outer mold 21 at this time
R2 is 1/2 of the outer diameter of the can body.
中型２３の内側は缶胴送り機構１側へ向けて下
降傾斜するテーパー面４７となつており、作動待
機時において、第４図に示すように中央部位に矩
形の開口が形成されるようになつている。中型２
３は中型拡縮部材４９によつて拡縮し、外型２１
に対して進退するようになる。 The inside of the middle mold 23 has a tapered surface 47 that slopes downward toward the can body feeding mechanism 1 side, and a rectangular opening is formed in the center part when the can body is on standby, as shown in FIG. ing. medium size 2
3 is expanded and contracted by a medium-sized expansion/contraction member 49, and the outer mold 21
It will move forward and backward against the enemy.
即ち、中型拡縮部材４９に頭部５１は中型２３
の内側テーパー面４７と接触し合う角錐状に形成
され、頭部５１の前進により中型２３は外側へ押
し拡げられる。頭部５１は所定の前進により中型
２３を外型２１に対して強く接触し合うよう押し
拡げるテーパー面となつているが必ずしも角錐状
に限定されることはなく、円錐状に形成すること
も可能である。 That is, the head 51 of the medium-sized expansion/contraction member 49 is the medium-sized expansion/contraction member 49.
The middle mold 23 is formed into a pyramidal shape that comes into contact with the inner tapered surface 47 of the middle mold 23, and as the head 51 moves forward, the middle mold 23 is pushed outward. The head 51 has a tapered surface that presses and expands the middle mold 23 so that it comes into strong contact with the outer mold 21 by a predetermined advance, but it is not necessarily limited to a pyramidal shape, and can also be formed into a conical shape. It is.
頭部５１は前記スリーブ３１内にスライド自在
に支承されたピストンロツド５３に固着されてい
る。ピストンロツド５３の基部５５は図外の駆動
装置によつて回転するカム板によつて押圧され、
押圧時のストロークは約40mmに設定されている。 The head 51 is fixed to a piston rod 53 which is slidably supported within the sleeve 31. The base 55 of the piston rod 53 is pressed by a cam plate rotated by a drive device (not shown).
The stroke when pressing is set to approximately 40mm.
一方、缶胴送り機構１の他側、即ち、ねじ切り
本体２５の反対側には缶胴保持機構５７が設けら
れている。 On the other hand, a can body holding mechanism 57 is provided on the other side of the can body feeding mechanism 1, that is, on the opposite side of the thread cutting main body 25.
缶胴保持機構５７は機体５９に固着された一対
の固定ストツパー６１，６１と、缶胴７の底部周
面７ｂに作用する拡縮可能な一対の外側押圧体６
３，６３と、缶胴７の底部内面７ｃに作用する進
退可能な内側押圧体６５とから成り、固定ストツ
パー６１は内側押圧体６５に形成された軸線方向
のガイド溝６４内に臨んでいる。内側押圧体６５
と外側押圧６３の動きは始めに内側押圧体６５が
前進し、その前進完了後に外側押圧体６３が縮小
する手順で作動し、作動完了は制御スイツチ（図
示していない）によつて検出される。 The can body holding mechanism 57 includes a pair of fixed stoppers 61, 61 fixed to the body 59, and a pair of expandable and contractible outer pressing bodies 6 that act on the bottom peripheral surface 7b of the can body 7.
3 and 63, and an inner pressing body 65 that can move forward and backward and act on the bottom inner surface 7c of the can body 7, and the fixed stopper 61 faces into an axial guide groove 64 formed in the inner pressing body 65. Inner pressing body 65
The movement of the outer pressing member 63 is such that the inner pressing member 65 moves forward first, and after the advancement is completed, the outer pressing member 63 contracts, and the completion of the operation is detected by a control switch (not shown). .
内側押圧体６５は、外周にフランジ６５ａを有
する円筒状に形成され、前記機体５９に支持され
て前進・後退するロツド６７に固着されている。
ロツド６７の基部にはローラ６７ａが設けられ、
ローラ６７ａは図外の駆動装置によつて回転する
回転板６９のカム溝６９ａに沿つて転動可能とな
つている。したがつて、回転板６９の回転により
ロツド６７に往復動し内側押圧体６５は缶胴送り
機構１の加工位置１３の缶胴７に対して進退する
ようになる。 The inner pressing body 65 is formed into a cylindrical shape having a flange 65a on the outer periphery, and is fixed to a rod 67 that is supported by the body 59 and moves forward and backward.
A roller 67a is provided at the base of the rod 67,
The roller 67a can roll along a cam groove 69a of a rotary plate 69 rotated by a drive device (not shown). Therefore, the rotation of the rotary plate 69 causes the rod 67 to reciprocate, and the inner pressing body 65 moves back and forth with respect to the can body 7 at the processing position 13 of the can body feeding mechanism 1.
外側押圧体６３は内側押圧体６５に固着され、
内側押圧体６５と一緒に移動する取付ブラケツト
７１にスライド部材７３を介して拡縮自在に取付
けられている。スライド部材７３は該部材７３内
に設けられた付勢ばね７５によつて外側（缶胴７
の底部周面７ｂから離れる方向）へ常時付勢さ
れ、スライド部材７３に設けられた転動輪７７は
揺動アーム７９のヘツド部７９ａと当接してい
る。ヘツド部７９ａのヘツド領域は取付ブラケツ
ト７１の進退ストローク量と対応し、転動輪７７
がヘツド部７９ａか外れ出ることがない長さに設
定されている。 The outer pressing body 63 is fixed to the inner pressing body 65,
It is attached to a mounting bracket 71 that moves together with the inner pressing body 65 via a slide member 73 so as to be expandable and retractable. The slide member 73 is moved to the outside (the can body 7
The rolling ring 77 provided on the slide member 73 is in contact with the head portion 79a of the swing arm 79. The head area of the head portion 79a corresponds to the forward/backward stroke amount of the mounting bracket 71, and
The length is set so that it will not come off from the head portion 79a.
揺動アーム７９は機体５９に取付けられたアー
ム軸７９ａを支点としてヘツド部７９ａが上下動
するよう回転自在に枢支されている。揺動アーム
７９のヘツド部７９ａと反対側の基端部にはロー
ラ８１が設けられ、ローラ８１は前記回転板６９
の回転軸８３に設けられたカム板８５のカム面８
５ａと接触している。カム板８５は回転軸８３に
対して偏位した位置に取付けられ、偏位量は前記
ヘツド部７９ａの最上昇時に、外側押圧体６３の
先端部６３ａが内側押圧体６５のフランジ６５ａ
より上方に臨み、最下降時に内側押圧体６５の周
面と接触し合う位置に設定されている。 The swing arm 79 is rotatably supported around an arm shaft 79a attached to the body 59 so that the head portion 79a can move up and down. A roller 81 is provided at the base end of the swing arm 79 on the opposite side from the head portion 79a, and the roller 81 is connected to the rotating plate 69.
The cam surface 8 of the cam plate 85 provided on the rotating shaft 83 of
It is in contact with 5a. The cam plate 85 is attached at a position offset from the rotating shaft 83, and the amount of offset is such that when the head portion 79a is raised to the highest level, the tip portion 63a of the outer pressing member 63 is attached to the flange 65a of the inner pressing member 65.
It faces higher up and is set at a position where it comes into contact with the circumferential surface of the inner pressing body 65 when lowered to its lowest position.
なお、缶胴保持機構５７及び缶胴送り機構１並
びにねじ切り本体２５の各動作順序は始めに缶胴
送り機構１が動作した後、続いて缶胴保持機構５
７が動作し、さらに、ねじ切り本体２５が動作す
る順序となつており、それぞれの各動作完了はマ
イクロスイツチ等の制御スイツチによつて検出
し、その検出信号に基づいて各駆動装置がオン・
オフに制御されるようになつている。 The operation order of the can body holding mechanism 57, the can body feeding mechanism 1, and the thread cutting body 25 is such that the can body feeding mechanism 1 operates first, and then the can body holding mechanism 5 operates.
7 operates, and then the thread cutting main body 25 operates, and the completion of each operation is detected by a control switch such as a micro switch, and each drive device is turned on or off based on the detection signal.
It's becoming controlled off.
このように構成されたねじ切り装置においてタ
ーレツト３の回転により前工程で加工された缶胴
７は底部７ｂ側を缶胴保持機構５７側に、ネツキ
ング部７ａをねじ切り本体２５側に向かう姿勢で
缶胴送り機構１の入口１７側から加工位置１３に
送り込まれる。 In the threading device configured as described above, the can body 7 machined in the previous step by the rotation of the turret 3 is turned into a can body with the bottom portion 7b facing toward the can body holding mechanism 57 side and the netting portion 7a facing toward the thread cutting main body 25 side. It is fed into the processing position 13 from the inlet 17 side of the feeding mechanism 1.
加工位置１３に送り込まれた缶胴７に対して缶
胴保持機構５７が前進する。この時、外側押圧体
６３が縮径し、内側押圧体６５は缶胴７の底部と
当接し合う仮保持状態となる。 The can body holding mechanism 57 moves forward with respect to the can body 7 sent into the processing position 13. At this time, the diameter of the outer pressing member 63 is reduced, and the inner pressing member 65 is brought into a temporary holding state in which it comes into contact with the bottom of the can body 7.
次に、ねじ切り本体２５が前進して中型２３の
フランジ４１に缶胴７のネツキング部７ａが当接
すると、内側押圧体６５は缶胴７の底部内に強制
的に嵌合して底部内面７ｃを保持すると共に外側
押圧体６３は底部外周７ｂを押えるようになる。 Next, when the threading main body 25 moves forward and the netting part 7a of the can body 7 comes into contact with the flange 41 of the medium size 23, the inner pressing body 65 is forcibly fitted into the bottom of the can body 7, and the bottom inner surface 7c At the same time, the outer pressing body 63 comes to press the bottom outer periphery 7b.
次に、ねじ切り本体２５の外型２１が縮径して
ネツキング部７ａを押える。次に、中型拡縮部材
４９の頭部５１が前進し、中型２３を外側へ押し
拡げる。これにより、缶胴７のネツキング部７ａ
の周囲に４条のねじがスパイラル状に切られるよ
うになる。このねじ切り時において、ねじは外型
２１と中型２３とによつて同時に切られるため位
置ずれを起こすことがなくなり、正しい位置に切
られるようになる。この結果、缶胴のネツキング
部７ａに缶蓋をした時に確実な密閉状態が得られ
るようになる。一方、加工位置１３でねじ加工が
完了すると、外側押圧体６３が外方へ拡がり、内
側押圧体６５が後退する。この時、缶胴７の底部
は固定ストツパー６１に当つて規制されるため缶
胴７は加工位置１３に残る。加工位置１３の缶胴
７は内側押圧体６５の後退が完了すると同時に回
転するターレツト３によつて出口１９側へ送り出
される。また、入口７側に待機する缶胴７が加工
位置１３に送り込まれ、以下前記した動作手順で
順次ねじ切りが行われる。 Next, the outer mold 21 of the thread cutting main body 25 is reduced in diameter and presses the netting portion 7a. Next, the head 51 of the medium-sized expansion/contraction member 49 moves forward, pushing the medium size 23 outward. As a result, the netting portion 7a of the can body 7
Four screws are cut in a spiral around the . At the time of thread cutting, the thread is cut simultaneously by the outer die 21 and the middle die 23, so that positional deviation does not occur and the thread is cut at the correct position. As a result, a reliable sealed state can be obtained when the can lid is placed on the netting portion 7a of the can body. On the other hand, when the screw machining is completed at the machining position 13, the outer pressing body 63 expands outward and the inner pressing body 65 retreats. At this time, the bottom of the can body 7 hits the fixed stopper 61 and is regulated, so the can body 7 remains at the processing position 13. The can body 7 at the processing position 13 is sent out toward the outlet 19 by the rotating turret 3 at the same time as the inner pressing member 65 completes its retreat. Further, the can body 7 waiting on the side of the inlet 7 is sent to the processing position 13, and thread cutting is performed in sequence according to the operation procedure described above.
［考案の効果］
以上、説明したようにこの考案のねじ切り装置
によれば、ねじ切り時に缶胴保持機構によつて缶
胴の確実な保持及び解除ができるようになる。ま
た、ねじ切り完了後、缶胴はターレツトによつて
出口側へ迅速に送り出すことで可能となり作業能
率の向上が図れる。[Effects of the invention] As described above, according to the thread cutting device of this invention, the can body can be reliably held and released by the can body holding mechanism during thread cutting. Further, after thread cutting is completed, the can body can be quickly sent out to the exit side by the turret, thereby improving work efficiency.
第１図はこの考案のねじ切り装置の概要説明
図、第２図は缶胴送り機構の斜視図、第３図は缶
胴がねじ切り装置にセツトされた概要説明図、第
４図は第３図−線から見た一部分の正面図、
第５図は同上の側面図、第６図と第７図は外型と
中型の動作図、第８図は外型の取付状態を示した
説明図、第９図は中型拡縮部材の取付状態を示し
た全体の切断図、第１０図は缶胴保持機構の概要
側面図、第１１図は同上の平面図、第１２図と第
１３図は内側押圧体の動作図、第１４図は第１２
図の−線断面図、第１５図は缶胴の斜視
図、第１６図は従来例を示したねじ切り装置の説
明図である。
主要な図面符号の説明、１……缶胴送り機構、
３……ターレツト、７……缶胴、７ａ……ネツキ
ング部、１３……加工位置、２１……外型、２３
……中型、２５……ねじ切り本体、５７……缶胴
保持機構、６１……固定ストツパー、６３……外
側押圧体、６５……内側押圧体。
Fig. 1 is a schematic illustration of the thread cutting device of this invention, Fig. 2 is a perspective view of the can body feeding mechanism, Fig. 3 is a schematic illustration of the can body set in the thread cutting device, and Fig. 4 is the same as Fig. 3. - a front view of a portion as seen from the line;
Figure 5 is a side view of the same as above, Figures 6 and 7 are operational diagrams of the outer mold and medium mold, Figure 8 is an explanatory diagram showing the installation state of the outer mold, and Figure 9 is the installation state of the medium size expansion/contraction member. FIG. 10 is a schematic side view of the can body holding mechanism, FIG. 11 is a plan view of the same, FIGS. 12 and 13 are operation diagrams of the inner pressing body, and FIG. 12
15 is a perspective view of a can body, and FIG. 16 is an explanatory diagram of a conventional thread cutting device. Explanation of main drawing symbols, 1...can body feeding mechanism,
3... Turret, 7... Can body, 7a... Netting part, 13... Processing position, 21... Outer mold, 23
...Medium size, 25... Thread cutting body, 57... Can body holding mechanism, 61... Fixed stopper, 63... Outer pressing body, 65... Inner pressing body.
Claims (1)
ら出口側へ間欠的に送るターレツトを備えた缶胴
送り機構の一側に、前記加工位置の缶胴のネツキ
ング部に外型と内型とでねじを切るねじ切り本体
を設ける一方、缶胴送り機構の他側に、加工位置
の缶胴の底部端縁と当接可能な固定ストツパー
と、缶胴の底部周面に作用する拡縮可能な外側押
圧体と、缶胴底部内面に作用する進退可能な内側
押圧体とから成る缶胴保持機構を設けたことを特
徴とする缶のねじ切り装置。 On one side of the can body feeding mechanism, which includes a processing device and a turret that intermittently transports the can bodies waiting at the inlet from the processing device to the outlet side, an outer mold and an inner mold are attached to the necking part of the can body at the processing position. On the other side of the can body feeding mechanism, there is a fixed stopper that can come into contact with the bottom edge of the can body at the processing position, and an expandable outer part that acts on the bottom circumferential surface of the can body. A can threading device characterized by being provided with a can body holding mechanism comprising a pressing body and an inner pressing body that can move back and forth and act on the inner surface of the bottom of the can body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18044086U JPH0117375Y2 (en) | 1986-11-26 | 1986-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18044086U JPH0117375Y2 (en) | 1986-11-26 | 1986-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6385320U JPS6385320U (en) | 1988-06-03 |
| JPH0117375Y2 true JPH0117375Y2 (en) | 1989-05-19 |
Family
ID=31124400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18044086U Expired JPH0117375Y2 (en) | 1986-11-26 | 1986-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0117375Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05229545A (en) * | 1991-04-17 | 1993-09-07 | E Nussbaum Ag | Method and device to manufacture aluminum container with screw thread and said aluminum container |
-
1986
- 1986-11-26 JP JP18044086U patent/JPH0117375Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05229545A (en) * | 1991-04-17 | 1993-09-07 | E Nussbaum Ag | Method and device to manufacture aluminum container with screw thread and said aluminum container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6385320U (en) | 1988-06-03 |
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