JPH04224127A - Glass tube cutting apparatus - Google Patents

Glass tube cutting apparatus

Info

Publication number
JPH04224127A
JPH04224127A JP41470190A JP41470190A JPH04224127A JP H04224127 A JPH04224127 A JP H04224127A JP 41470190 A JP41470190 A JP 41470190A JP 41470190 A JP41470190 A JP 41470190A JP H04224127 A JPH04224127 A JP H04224127A
Authority
JP
Japan
Prior art keywords
glass tube
cutting
cutting blade
rotating shaft
cam
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
JP41470190A
Other languages
Japanese (ja)
Other versions
JPH0753590B2 (en
Inventor
Masahiko Yoshikawa
吉川 雅彦
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.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass Co Ltd
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 Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Priority to JP2414701A priority Critical patent/JPH0753590B2/en
Publication of JPH04224127A publication Critical patent/JPH04224127A/en
Publication of JPH0753590B2 publication Critical patent/JPH0753590B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00Severing cooled glass
    • C03B33/06Cutting or splitting glass tubes, rods, or hollow products

Abstract

PURPOSE:To set the peripheral velocity of a cutting edge to the optimum value corresponding to the hauling velocity of a glass tube without stopping a cutting apparatus. CONSTITUTION:At the time of changing the cutting length of a glass tube 5, as a glass tube cutting tube 10 is rotated in such a manner that it is synchronized with a glass tube hauling machine, a planet gear 23 of a secondary working gear mechanism 16 is rotated forward or revolved in a reverse rotating direction. By the change of the engaged position between a cam follower and a spiral cam groove, a cutter supporting base 37 shifts in the radial direction of a rotary board 38 to change the rotational radius of a cutting edge 4.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明はガラス管切断装置に関す
るものであり、詳細には、ダンナー式ガラス管牽引機等
と併用し切断刃が恒速回転するガラス管切断装置の改良
に関するものである。
[Field of Industrial Application] The present invention relates to a glass tube cutting device, and more particularly, it relates to an improvement in a glass tube cutting device in which the cutting blade rotates at a constant speed when used in combination with a Danner-type glass tube pulling machine or the like. .

【0002】0002

【従来の技術】ダンナー式ガラス管牽引機等に使用する
チルカット方式のガラス管切断装置として本出願人は実
公昭45−32137号公報、実公昭49−47096
号公報、実公昭53−49803号公報等に記載する定
長切断手段を提案している。
[Prior Art] The present applicant has published Utility Model Publication No. 45-32137 and Utility Model Publication No. 49-47096 as a chill cut type glass tube cutting device used in a Danner type glass tube pulling machine, etc.
A constant length cutting means described in Japanese Utility Model Publication No. 53-49803 and the like has been proposed.

【0003】図3は従来装置の一例を示す斜視図であっ
て、水平回転切断機(1)は、回転軸(2)に上下に揺
動自在に支持され、固定円板(8)の周りを回転する切
断杆(3)の先端に切断刃(4)を取付け、ガラス管(
5)の牽引速度との同調下に切断杆(3)を所定切断長
に応じた回転数で恒速回転させ、カム(6)による切断
杆(3)の押上げを利用して切断刃(4)をガラス管(
5)の上に自重落下させ、これによってガラス管(5)
を定長切断している。このとき、切断刃(4)には管路
(7)から冷却水が供給されており、未だ高温状態にあ
るガラス管(5)に金属または多孔質のセラミック製の
切断刃(4)を当接させ、冷却水付与下の熱衝撃によっ
てクラックを発生させガラス管(5)を所定の長さに定
長切断している。
FIG. 3 is a perspective view showing an example of a conventional device, in which a horizontal rotary cutting machine (1) is supported on a rotating shaft (2) so as to be able to swing up and down, and rotates around a fixed disc (8). Attach the cutting blade (4) to the tip of the cutting rod (3) that rotates the glass tube (
The cutting rod (3) is rotated at a constant speed according to the predetermined cutting length in synchronization with the pulling speed of the cutting rod (5), and the cutting blade ( 4) Insert the glass tube (
5), and thereby the glass tube (5)
is cut to a fixed length. At this time, cooling water is being supplied to the cutting blade (4) from the pipe (7), and the metal or porous ceramic cutting blade (4) is applied to the glass tube (5), which is still at a high temperature. The glass tube (5) is cut into a predetermined length by generating cracks by thermal shock while applying cooling water.

【0004】この様なガラス管切断装置においては、切
断刃(4)と切断されるガラス管(5)との接触時の切
断刃(4)の速度とガラス管(5)の牽引速度との間に
極端な差がある場合、切断されたガラス管(5)の切断
端の状態に次のような悪影響を及ぼすことが知られてい
る。
In such a glass tube cutting device, the speed of the cutting blade (4) at the time of contact between the cutting blade (4) and the glass tube (5) to be cut and the pulling speed of the glass tube (5) are controlled. It is known that if there is an extreme difference between the two, it will have the following adverse effect on the condition of the cut end of the cut glass tube (5).

【0005】1.切断刃(5)の速度がガラス管(5)
の牽引速度よりも極端に大きい場合切断直後において切
断刃が切断され終えた直後のガラス管(5)の切断端に
衝突し、その部分を欠損させることにより、切断端の品
位を悪化させる。
1. The speed of the cutting blade (5) is the same as the glass tube (5)
If the pulling speed is extremely higher than the pulling speed, the cutting blade collides with the cut end of the glass tube (5) immediately after cutting, damaging that portion and degrading the quality of the cut end.

【0006】2.切断刃(4)の速度がガラス管(5)
の牽引速度よりも極端に小さい場合切断直後において、
後続の牽引中のガラス管(5)の先端が切断刃(4)に
衝突し、その部分が欠損することにより、切断端の品位
を悪化させる。
2. The speed of the cutting blade (4) is the same as the glass tube (5)
Immediately after cutting, if the pulling speed is extremely lower than the
The tip of the glass tube (5) that is being pulled subsequently collides with the cutting blade (4) and that part is damaged, thereby degrading the quality of the cut end.

【0007】上記事項を定量的に説明すると、今、ガラ
ス管(5)の牽引速度をV1mm/min、所定切断長
さをL1mm、切断刃(4)の回転数をN1rpm、切
断刃(4)の回転半径をrmm、切断刃(4)の回転周
速度をV2mm/minとすると、
To explain the above matter quantitatively, the pulling speed of the glass tube (5) is V1 mm/min, the predetermined cutting length is L1 mm, the rotation speed of the cutting blade (4) is N1 rpm, and the cutting blade (4) is When the radius of rotation is rmm and the peripheral speed of rotation of the cutting blade (4) is V2mm/min,

【0008】 V1=L1・N1  …(1)、V2=2πrN1  
…(2)上記(1)式において、V1とL1とが決まれ
ば、N1は決定される。また、上記(2)式より、rが
一定であれば、N1が決まっているから、V2は決定さ
れる。
[0008] V1=L1・N1...(1), V2=2πrN1
(2) In the above equation (1), if V1 and L1 are determined, N1 is determined. Further, according to the above equation (2), if r is constant, N1 is determined, so V2 is determined.

【0009】即ち、恒速で牽引されるガラス管(5)を
、恒速で回転する切断装置で所定長さに切断する場合、
切断刃(4)の回転半径rが一定であれば、切断刃(4
)の周速度V2も一定であって、これがガラス管(5)
の牽引速度V1に対して極端に相違すれば、前記した問
題点がある。
That is, when cutting a glass tube (5) pulled at a constant speed into a predetermined length with a cutting device rotating at a constant speed,
If the rotation radius r of the cutting blade (4) is constant, the cutting blade (4)
) is also constant, and this is the glass tube (5)
If the traction speed V1 is extremely different from the traction speed V1, the problem described above will occur.

【0010】この問題点を解消するには、ガラス管(5
)の牽引速度V1に応じた最適な切断刃(4)の回転周
速度V2とする必要があり、そのために、切断刃(4)
の回転半径rを調整することが行なわれている。
In order to solve this problem, a glass tube (5
) It is necessary to set the optimum rotational circumferential speed V2 of the cutting blade (4) according to the pulling speed V1 of the cutting blade (4).
Adjustment of the radius of rotation r is being carried out.

【0011】[0011]

【発明が解決しようとする課題】従来のガラス管切断装
置では、切断刃(4)の回転周速度を調整する際、ガラ
ス管牽引機、並びに、これと同調回転しているガラス管
切断装置を停止させて、手動操作によって切断杆(3)
に対する切断刃(4)の半径方向の取付位置を変更して
いる。このように切断刃(4)の取付位置の調整を手動
操作方式で実行しているため、切断刃(4)の回転周速
度の調整時にガラス管牽引機とガラス管切断装置の両方
を停止させる必要があり、生産性の低下や省力化の阻害
等の問題が発生していた。
[Problems to be Solved by the Invention] In the conventional glass tube cutting device, when adjusting the rotational circumferential speed of the cutting blade (4), the glass tube pulling machine and the glass tube cutting device rotating in synchronization with the cutting blade (4) have to be adjusted. Stop and manually cut the cutting rod (3)
The mounting position of the cutting blade (4) in the radial direction is changed. Since the installation position of the cutting blade (4) is adjusted manually in this way, both the glass tube pulling machine and the glass tube cutting device are stopped when adjusting the rotational peripheral speed of the cutting blade (4). This caused problems such as decreased productivity and impeded labor savings.

【0012】0012

【課題を解決するための手段】上記課題の解決手段とし
て本発明は、恒速で牽引されるガラス管を定長切断する
装置であって、切断刃を半径方向に移動可能に支持した
回転板を固着した回転軸と、回転軸と同心状に支持され
、中心からの半径方向距離が漸開変化する螺旋状のカム
溝を有し、このカム溝に上記切断刃の一部を係合させた
カム円板と、上記回転軸及びカム円板の間に介在させた
2組の差動歯車機構とからなり、上記2組の差動歯車機
構で上記回転軸とカム円板とを同一方向に同一回転数で
回転させ、所定時、一方の差動歯車機構の遊星歯車を正
逆方向に公転操作可能としたガラス管切断装置を提供す
るものである。
[Means for Solving the Problems] As a means for solving the above-mentioned problems, the present invention provides a device for cutting a glass tube to a fixed length that is pulled at a constant speed, which comprises a rotary plate that supports a cutting blade so as to be movable in a radial direction. a rotating shaft to which the cutting blade is fixed, and a spiral cam groove that is supported concentrically with the rotating shaft and gradually changes in radial distance from the center, and a part of the cutting blade is engaged with this cam groove. and two sets of differential gear mechanisms interposed between the rotating shaft and the cam disc, and the two sets of differential gear mechanisms rotate the rotating shaft and the cam disc in the same direction. The present invention provides a glass tube cutting device that rotates at a rotational speed and can rotate a planetary gear of one differential gear mechanism in forward and reverse directions at a predetermined time.

【0013】[0013]

【作用】切断刃の回転周速度を調整する際には、第2の
差動歯車機構の遊星歯車を上記回転軸の周りで正転方向
または逆転方向に所定量だけ公転させる。この第2の差
動歯車機構の遊星歯車の公転変位により回転板とカム円
板との間に所定の回転位相差が発生する。この位相差は
漸開形のカム溝に係合する切断刃の係合位置の変化とし
て切断刃に伝達され、切断刃を回転軸の半径方向に沿っ
て移動させる。これによって、切断刃の回転半径が変化
し、回転周速度が変更される。
[Operation] When adjusting the rotational circumferential speed of the cutting blade, the planetary gear of the second differential gear mechanism is caused to revolve by a predetermined amount in the normal rotation direction or the reverse rotation direction around the rotation axis. A predetermined rotational phase difference is generated between the rotating plate and the cam disk due to the orbital displacement of the planetary gear of the second differential gear mechanism. This phase difference is transmitted to the cutting blade as a change in the engagement position of the cutting blade that engages with the gradually opening cam groove, and moves the cutting blade along the radial direction of the rotating shaft. As a result, the radius of rotation of the cutting blade changes, and the peripheral speed of rotation changes.

【0014】上記第2の差動歯車機構の遊星歯車を公転
させずに固定しておけば、カム円板と回転軸とが同調回
転する。
[0014] If the planetary gears of the second differential gear mechanism are fixed without rotating, the cam disk and the rotating shaft rotate in synchrony.

【0015】[0015]

【実施例】以下、図1および図2に基づいて本発明の具
体例を説明する。尚、図1は、切断刃が垂直回転する形
式の切断装置に本発明を適用した実施例を示している。
[Embodiment] Hereinafter, a specific example of the present invention will be explained based on FIGS. 1 and 2. Note that FIG. 1 shows an embodiment in which the present invention is applied to a cutting device in which the cutting blade rotates vertically.

【0016】ガラス管(5)の切断装置(10)は、切
断装置の本体(15)を先端に固着した回転軸(2)と
、この回転軸上に2個一組で対向配置された太陽歯車(
11)(12)と、動力伝達用の遊星歯車(13)とか
らなる第1の差動傘歯車機構(14)、ならびに、この
第1の差動傘歯車機構(14)に隣接配置された第2の
差動傘歯車機構(16)を具えている。第1の差動傘歯
車機構(14)は、回転軸(2)上に2個一組で対向配
置された太陽歯車(11)(12)と、これらの太陽歯
車(11)(12)と噛合う動力伝達用の遊星歯車(1
3)とを具えており、遊星歯車(13)は、ケーシング
(17)を固定ベースとするモータ(18)の出力軸(
19)に固着されている。
The cutting device (10) for the glass tube (5) has a rotating shaft (2) having a main body (15) of the cutting device fixed to the tip thereof, and a pair of suns arranged facing each other on the rotating shaft. gear(
11) A first differential bevel gear mechanism (14) consisting of (12) and a power transmission planetary gear (13), and a differential bevel gear mechanism (14) arranged adjacent to the first differential bevel gear mechanism (14). A second differential bevel gear mechanism (16) is provided. The first differential bevel gear mechanism (14) includes sun gears (11) and (12) that are arranged in pairs facing each other on the rotating shaft (2), and these sun gears (11) and (12). Planetary gears for power transmission that mesh (1
3), and the planetary gear (13) is connected to the output shaft (
19).

【0017】これに対して第2の差動傘歯車機構(16
)は、第1の差動歯車機構(14)と回転軸(2)に遊
嵌されているカム軸(20)との間に、2個一組で対向
配置された太陽歯車(21)(22)と、これらの太陽
歯車(21)(22)と噛合って自由回転する遊星歯車
(23)と、上記カム軸(20)の周りに軸受(24)
を介して同心配置された軸受スリーブ(25)と、この
軸受スリーブを介して上記回転軸(2)の周りに回転可
能に遊嵌支持されたウォームホイール(26)と、この
ウォームホイールに正逆両方向の回転駆動力を伝達する
ウォーム(27)とによって構成されている。このウォ
ーム(27)は、ケーシング(17)を固定ベースとし
て正逆両方向に回転するモータ(28)の出力軸に固着
されている。
On the other hand, the second differential bevel gear mechanism (16
) are two sun gears (21) ( 22), a planetary gear (23) that meshes with these sun gears (21) and (22) and rotates freely, and a bearing (24) around the camshaft (20).
A bearing sleeve (25) is arranged concentrically through the bearing sleeve (25), a worm wheel (26) is rotatably supported with a loose fit around the rotating shaft (2) through this bearing sleeve, and a forward and reverse direction is connected to the worm wheel. It is composed of a worm (27) that transmits rotational driving force in both directions. This worm (27) is fixed to the output shaft of a motor (28) that rotates in both forward and reverse directions using the casing (17) as a fixed base.

【0018】ここにおいて、第1の差動傘歯車機構(1
4)の一方の太陽歯車(11)は、キー(29)で回転
軸(2)に固着されており、これに対応して第2の差動
傘歯車機構(16)では、後記カム円板(30)側に位
置している一方の太陽歯車(22)を、キー(31)を
利用してカム軸(20)の基端部に固着すると共に、遊
星歯車(23)を介して対向配置されている他方の太陽
歯車(21)を、締付けボルト(32)により第1の差
動傘歯車機構(14)の内側の太陽歯車(12)と一体
構造に接合している。また、第2の差動傘歯車機構(1
6)で遊星歯車(23)の軸を回転可能に支持する支持
部材(33)は、締付けボルト(34)等によりウォー
ムホイール(26)と一体構造に接合されている。更に
、太陽歯車(12)(21)は、軸受(35)(36)
を介して回転軸(2)上に回転可能に支持されている。
Here, the first differential bevel gear mechanism (1
One of the sun gears (11) of 4) is fixed to the rotating shaft (2) with a key (29), and correspondingly, in the second differential bevel gear mechanism (16), the cam disc (described later) One of the sun gears (22) located on the (30) side is fixed to the base end of the camshaft (20) using the key (31), and is placed oppositely through the planetary gear (23). The other sun gear (21) is integrally connected to the inner sun gear (12) of the first differential bevel gear mechanism (14) by a tightening bolt (32). In addition, a second differential bevel gear mechanism (1
A support member (33) rotatably supporting the shaft of the planetary gear (23) at 6) is integrally joined to the worm wheel (26) by a tightening bolt (34) or the like. Furthermore, the sun gears (12) (21) are equipped with bearings (35) (36).
It is rotatably supported on a rotating shaft (2) via a rotary shaft (2).

【0019】一方、回転軸(2)の先端には、一端にカ
ッタ支持台(37)を装着した回転板(38)が締付ボ
ルト(39)で固着されている。このカッタ支持台(3
7)を、図2に示すように回転軸(2)の軸線と直交す
る平面内で平行に延びる2本のガイドロッド(40)(
41)とカッタ支持台(37)と一体構造をなすスライ
ドブロック(43)とからなるガイド機構によって、回
転板(38)の半径方向に沿って移動可能に支持するこ
とによって切断装置の本体(15)が形成されている。 カッタ支持台(37)の下端には、切断刃(4)がその
刃面をガラス管(5)の軸線方向と直交させた状態で取
付けられている。カッタ支持台(37)は、上記スライ
ドブロック(43)の上方でガイドロッド(40)(4
1)に嵌挿された圧縮バネ(図示省略)によって、カム
フォロアー(46)がカム溝(47)に対して常時求心
方向に押圧付勢されるように構成されている。そして、
回転板(38)の背面側には、カム軸(20)の先端に
固着された状態でカム円板(44)が配設されている。 このカム円板(44)は、図2に示すように回転板(3
8)との対向面に、上記カッタ支持台(37)から延び
るアーム(45)の先端に装着されたカムフォロア(4
6)が嵌まりこむカム溝(47)を形成しているカム溝
(47)は、カム円板(44)の中心Oからの半径方向
の距離が最少径Rminから最大径Rmax迄連続的に
漸増する螺旋状に構成されている。カッタ支持台(37
)は、上記した圧縮バネ等によって回転板(38)の求
心方向に押圧付勢することによって、切断刃(4)は、
回転軸(2)、回転板(38)、カム円板(44)と共
に恒速送りされるガラス管(5)に対して同調回転し、
1回転に付き1回の割合でガラス管(5)に冷却水付与
下の熱衝撃によるクラックを発生させる。これによって
ガラス管(5)は、切断刃(4)の回転数とガラス管(
5)の牽引速度との関係に応じた長さに定長切断される
。尚、ガラス管切断装置(10)は、切断すべきガラス
管(5)の径の変化に応じて切断刃(4)を上下動可能
に支持するため、上下動装置(図示省略)に連設されて
いる。また、切断刃(4)への冷却水の供給は、図1に
おいて、回転軸(2)の後端の回転継手(49)から回
転軸(2)内の水路(50)及び回転軸(2)の先端と
カッタ支持台(37)との間を接続する配管(51)並
びにカッタ支持台(37)内の水路(52)を経由して
行なわれる。
On the other hand, a rotary plate (38) having a cutter support (37) attached to one end is fixed to the tip of the rotary shaft (2) with a tightening bolt (39). This cutter support stand (3
7), two guide rods (40) (
The main body (15) of the cutting device is supported movably along the radial direction of the rotary plate (38) by a guide mechanism consisting of a slide block (43) which is integrally constructed with a cutter support stand (37) and a cutter support stand (37). ) is formed. A cutting blade (4) is attached to the lower end of the cutter support (37) with its blade surface perpendicular to the axial direction of the glass tube (5). The cutter support stand (37) is mounted on the guide rod (40) (4) above the slide block (43).
The cam follower (46) is always pressed in the centripetal direction with respect to the cam groove (47) by a compression spring (not shown) fitted into the cam groove (47). and,
A cam disk (44) is disposed on the back side of the rotary plate (38) and is fixed to the tip of the camshaft (20). This cam disk (44) is a rotating plate (3) as shown in FIG.
A cam follower (4) attached to the tip of an arm (45) extending from the cutter support stand (37)
6) into which the cam groove (47) is fitted, the radial distance from the center O of the cam disk (44) is continuous from the minimum diameter Rmin to the maximum diameter Rmax. It is structured in a gradually increasing spiral. Cutter support stand (37
) is pressed in the centripetal direction of the rotary plate (38) by the above-mentioned compression spring, etc., so that the cutting blade (4) is
The rotary shaft (2), the rotary plate (38), and the cam disk (44) rotate in synchronization with the glass tube (5) that is fed at a constant speed;
Cracks are generated in the glass tube (5) at a rate of once per rotation due to thermal shock while cooling water is applied. As a result, the number of rotations of the cutting blade (4) and the number of rotations of the glass tube (5)
5) It is cut to a fixed length according to the relationship with the traction speed. The glass tube cutting device (10) is connected to a vertical movement device (not shown) in order to support the cutting blade (4) so that it can move up and down according to changes in the diameter of the glass tube (5) to be cut. has been done. In addition, cooling water is supplied to the cutting blade (4) from the rotary joint (49) at the rear end of the rotary shaft (2) to the water channel (50) in the rotary shaft (2) and the rotary shaft (2 ) and the cutter support (37) via a pipe (51) that connects the tip of the cutter support (37) and a water channel (52) within the cutter support (37).

【0020】以下、本発明装置の作動状態を説明する。 ガラス管(5)の切断時には、回転軸(2)の先端に固
着された回転板(38)がガラス管牽引機と同調して恒
速回転し、この回転板(38)に図示しない圧縮バネを
介して押圧支持下に装着されているカッタ支持台(37
)のカムフォロア(46)を、カム円板(44)に設け
られた漸開形のカム溝(47)との係合下に回転軸(2
)の周りに同調回転させる。この結果、カッタ支持台(
37)の外端に取付けられた切断刃(4)は、カムフォ
ロア(46)とカム溝(47)との係合によって回転半
径を規制された移動軌跡に沿ってカム円板(44)と一
体となって回動する間にガラス管(5)に冷却水付与下
の熱衝撃を与えクラックを発生させることによって、こ
のガラス管(5)を所定の長さに定長切断する。 このときに切断刃(4)の回転周速度とガラス管(5)
の牽引速度に極端な差がある場合、切断刃の回転速度を
変更調整する必要がある。
The operating state of the device of the present invention will be explained below. When cutting the glass tube (5), a rotating plate (38) fixed to the tip of the rotating shaft (2) rotates at a constant speed in synchronization with the glass tube pulling machine, and a compression spring (not shown) is attached to the rotating plate (38). The cutter support stand (37
) of the rotating shaft (2) while engaging with a gradually opening cam groove (47) provided on the cam disc (44).
). As a result, the cutter support (
The cutting blade (4) attached to the outer end of the cam disk (44) moves integrally with the cam disc (44) along a movement locus whose rotation radius is regulated by the engagement of the cam follower (46) and the cam groove (47). While rotating, the glass tube (5) is subjected to a thermal shock while being supplied with cooling water to generate cracks, thereby cutting the glass tube (5) into a predetermined length. At this time, the rotational peripheral speed of the cutting blade (4) and the glass tube (5)
If there is an extreme difference in the traction speed, it is necessary to change and adjust the rotation speed of the cutting blade.

【0021】切断刃(4)の回転周速度を変更調整する
際には、第1の差動傘歯車機構(14)の遊星歯車(1
3)に直結されているモータ(18)を駆動することに
よって回転軸(2)をガラス管牽引機と同調回転状態に
保持したまま、第2の差動傘歯車機構(16)のウォー
ム(27)に直結されているモータ(28)を起動し、
ウォーム(27)、およびウォームホイール(26)を
介して第2の差動傘歯車機構(16)の遊星歯車(23
)を回転軸(2)の周りで正転方向または逆転方向にガ
ラス管(5)の切断長さの変化に相当する量だけ公転さ
せる。この第2の差動傘歯車機構(16)の遊星歯車(
23)の公転変位量は、第1の差動傘歯車機構(14)
から第2差動傘歯車機構(16)の太陽歯車(21)(
22)に伝達される回転変位量と合成され、回転軸(2
)上に遊嵌支持されているカム軸(20)を介してカム
円板(44)に伝達される。この結果、第1の差動傘歯
車機構(14)を動力源として恒速回転しているカッタ
支持台(37)付きの回転板(38)とカム円板(44
)との間に所定の回転位相差が発生する。この位相差は
、漸開形のカム溝(47)と、回転板(38)側に取付
けられているカムフォロア(46)との係合位置の変化
としてカッタ支持台(37)に伝達され、カッタ支持台
(37)を回転板(38)の半径方向に沿って移動させ
る。結果的にカッタ支持台(37)に取付けられた切断
刃(4)は、ガラス管(5)の牽引速度に応じた最適回
転周速度を得られる回転半径で回転することになる。こ
のようにして切断刃(4)の回転移動軌跡の補正動作が
終了したとき、ガラス管切断長さの調整用の上記モータ
(28)を停止させ、モータ(18)のみによってカム
円板(44)とカッタ支持台(37)付きの回転板(3
8)とが同調回転する通常のガラス管切断状態に復帰さ
せる。以上、中空のガラス管(5)を定長切断する具体
例に基づいて説明したが、本発明装置は中実ガラス棒の
切断装置としても使用することができる。また、ガラス
管切断長さの調整用機構は、上記した実施例に制約され
ず、他の構成でもよい。また、切断刃(4)の半径方向
の調整量は、目盛で表示させたり、デジタル数値で表示
させてもよい。さらに、上記した実施例は、切断刃(4
)が垂直回転する形式の切断装置を示したが、図3のよ
うな水平回転形式の切断装置にも、本発明の装置は勿論
、適用できる。即ち、その場合には、切断刃(4)を先
端下面に取付けた切断杆(図示省略)の後端をカッタ支
持台(37)に上下に揺動可能に枢着し、かつ、この切
断杆の途中下面にカムローラを取付け、このカムローラ
の回転軌跡上の所定位置に落下用カムを配設するもので
ある。
When changing and adjusting the rotational peripheral speed of the cutting blade (4), the planetary gear (1) of the first differential bevel gear mechanism (14) is used.
By driving the motor (18) that is directly connected to ), start the motor (28) directly connected to
The worm (27) and the planetary gear (23) of the second differential bevel gear mechanism (16) are connected via the worm wheel (26).
) is caused to revolve around the rotation axis (2) in the forward or reverse direction by an amount corresponding to the change in the cut length of the glass tube (5). The planetary gear (
23) is the amount of revolution displacement of the first differential bevel gear mechanism (14)
from the sun gear (21) of the second differential bevel gear mechanism (16) (
22) and the amount of rotational displacement transmitted to the rotating shaft (22).
) is transmitted to the cam disk (44) via the camshaft (20) which is loosely supported on the camshaft (20). As a result, the rotary plate (38) with the cutter support stand (37) and the cam disk (44) rotate at a constant speed using the first differential bevel gear mechanism (14) as a power source.
) A predetermined rotational phase difference occurs between the two. This phase difference is transmitted to the cutter support base (37) as a change in the engagement position between the gradually opening cam groove (47) and the cam follower (46) attached to the rotating plate (38), and The support stand (37) is moved along the radial direction of the rotating plate (38). As a result, the cutting blade (4) attached to the cutter support (37) rotates at a radius of rotation that provides the optimum rotational circumferential speed depending on the pulling speed of the glass tube (5). When the correction operation of the rotational movement locus of the cutting blade (4) is completed in this way, the motor (28) for adjusting the cutting length of the glass tube is stopped, and the cam disc (44) is operated only by the motor (18). ) and rotary plate (3) with cutter support stand (37).
8) Return to the normal glass tube cutting state in which the glass tubes rotate in sync with each other. Although the above description has been made based on a specific example of cutting a hollow glass tube (5) to a fixed length, the device of the present invention can also be used as a device for cutting solid glass rods. Furthermore, the mechanism for adjusting the glass tube cutting length is not limited to the above-described embodiment, and may have other configurations. Further, the amount of adjustment of the cutting blade (4) in the radial direction may be displayed on a scale or as a digital value. Furthermore, the above-mentioned embodiment has a cutting blade (4
) has been shown to rotate vertically, but the device of the present invention can of course be applied to a horizontally rotating cutting device as shown in FIG. That is, in that case, the rear end of a cutting rod (not shown) with the cutting blade (4) attached to the lower surface of the tip is pivotally connected to the cutter support base (37) so as to be able to swing up and down, and the cutting rod is A cam roller is attached to the midway lower surface of the cam roller, and a falling cam is disposed at a predetermined position on the rotation trajectory of this cam roller.

【0022】[0022]

【発明の効果】本発明によれば、牽引機とガラス管切断
装置を停止させずに切断刃の回転半径を変更してガラス
管の牽引速度に応じた最適の切断刃の回転周速度に設定
することができる。この結果、生産性の向上とガラス管
切断工程の省力化に顕著な効果が発揮される。
[Effects of the Invention] According to the present invention, the rotation radius of the cutting blade is changed without stopping the traction machine and the glass tube cutting device, and the rotational circumferential speed of the cutting blade is set to the optimum rotational speed according to the traction speed of the glass tube. can do. As a result, a remarkable effect is exhibited in improving productivity and saving labor in the glass tube cutting process.

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

【図1】本発明装置の縦断面図である。FIG. 1 is a longitudinal sectional view of the device of the present invention.

【図2】カッタ支持台とカム円板の要部正面図である。FIG. 2 is a front view of main parts of a cutter support stand and a cam disc.

【図3】従来装置の斜視図である。FIG. 3 is a perspective view of a conventional device.

【符号の説明】[Explanation of symbols]

2  回転軸 4  切断刃 5  ガラス管 10  ガラス管切断装置 14  第1の差動傘歯車機構 16  第2の差動傘歯車機構 26  ウォームホイール 27  ウォーム 37  カッタ支持台 38  回転板 44  カム円板 46  カムフォロア 47  カム溝 2 Rotation axis 4 Cutting blade 5 Glass tube 10 Glass tube cutting device 14 First differential bevel gear mechanism 16 Second differential bevel gear mechanism 26 Worm wheel 27 Warm 37 Cutter support stand 38 Rotating plate 44 Cam disc 46 Cam follower 47 Cam groove

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  恒速で牽引されるガラス管を定長切断
する装置であって、切断刃を半径方向に移動可能に支持
した回転板を固着した回転軸と、回転軸と同心状に支持
され、中心からの半径方向距離が漸開変化する螺旋状の
カム溝を有し、このカム溝に上記切断刃の一部を係合さ
せたカム円板と、上記回転軸及びカム円板の間に介在さ
せた2組の差動歯車機構とからなり、上記2組の差動歯
車機構で上記回転軸とカム円板とを同一方向に同一回転
数で回転させ、所定時、一方の差動歯車機構の遊星歯車
を正逆方向に公転操作可能としたことを特徴とするガラ
ス管切断装置。
Claim 1: A device for cutting a glass tube to a fixed length that is pulled at a constant speed, the device comprising: a rotating shaft to which a rotating plate supporting a cutting blade movably in a radial direction is fixed; and a rotating shaft supported concentrically with the rotating shaft. and has a spiral cam groove whose radial distance from the center gradually changes, and between a cam disk in which a part of the cutting blade is engaged with the cam groove, and the rotating shaft and the cam disk. The rotating shaft and the cam disc are rotated in the same direction and at the same rotation speed by the two sets of differential gear mechanisms, and at a predetermined time, one of the differential gears is rotated. A glass tube cutting device characterized in that the planetary gear of the mechanism can be operated to revolve in forward and reverse directions.
JP2414701A 1990-12-26 1990-12-26 Glass tube cutting equipment Expired - Fee Related JPH0753590B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2414701A JPH0753590B2 (en) 1990-12-26 1990-12-26 Glass tube cutting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2414701A JPH0753590B2 (en) 1990-12-26 1990-12-26 Glass tube cutting equipment

Publications (2)

Publication Number Publication Date
JPH04224127A true JPH04224127A (en) 1992-08-13
JPH0753590B2 JPH0753590B2 (en) 1995-06-07

Family

ID=18523151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2414701A Expired - Fee Related JPH0753590B2 (en) 1990-12-26 1990-12-26 Glass tube cutting equipment

Country Status (1)

Country Link
JP (1) JPH0753590B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018024237A (en) * 2016-08-09 2018-02-15 三ツ星ベルト株式会社 Unvulcanized rubber belt formation device and unvulcanized rubber belt formation method
JP2018034505A (en) * 2016-08-30 2018-03-08 三ツ星ベルト株式会社 Apparatus and method for forming unvulcanized rubber belt
CN110026503A (en) * 2019-05-27 2019-07-19 杭州富阳锐明科技有限公司 The cable disconnecting device of clamping shearing can be synchronized

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018024237A (en) * 2016-08-09 2018-02-15 三ツ星ベルト株式会社 Unvulcanized rubber belt formation device and unvulcanized rubber belt formation method
JP2018034505A (en) * 2016-08-30 2018-03-08 三ツ星ベルト株式会社 Apparatus and method for forming unvulcanized rubber belt
CN110026503A (en) * 2019-05-27 2019-07-19 杭州富阳锐明科技有限公司 The cable disconnecting device of clamping shearing can be synchronized

Also Published As

Publication number Publication date
JPH0753590B2 (en) 1995-06-07

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