JP3280012B2 - Tire bead removal device - Google Patents
Tire bead removal deviceInfo
- Publication number
- JP3280012B2 JP3280012B2 JP2000168014A JP2000168014A JP3280012B2 JP 3280012 B2 JP3280012 B2 JP 3280012B2 JP 2000168014 A JP2000168014 A JP 2000168014A JP 2000168014 A JP2000168014 A JP 2000168014A JP 3280012 B2 JP3280012 B2 JP 3280012B2
- Authority
- JP
- Japan
- Prior art keywords
- tire
- bead
- pulling
- rubber
- claw
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/08—Transition metals
- B29K2705/12—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、使用済の古タイ
ヤ、特にトラック、バスなどの使い古した車輌用の大型
ゴムタイヤを焼却処分することなく再利用するために廃
材として破砕機によって破砕、粉砕などの処理をして燃
料その他の目的で廃物利用する際に、破砕機で処分する
前に、ゴムタイヤの内側に内装されている数本の鋼線を
束ねたビードをゴムタイヤから引き抜き、除去処理する
タイヤビード除去装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to crushing and crushing of used old tires, especially large rubber tires for used vehicles such as trucks and buses by a crusher as waste materials in order to reuse them without incineration. When using waste for fuel or other purposes after processing, the bead with several steel wires bundled inside the rubber tire is pulled out from the rubber tire and removed before disposal by the crusher. The present invention relates to a bead removing device.
【0002】[0002]
【従来の技術】従来、使用済の大型ゴムタイヤは再利用
することなく焼却処分していたが、再利用を前提とする
際に、ゴムタイヤを破砕機で破砕処理する場合、タイヤ
ビードがあるために破砕刃の損傷が激しくて実用上処理
ができないので、タイヤビードの除去が要請される。2. Description of the Related Art Conventionally, used large rubber tires have been incinerated without being reused. However, on the premise of reuse, when rubber tires are crushed by a crusher, there are tire beads. Since the crushing blade is severely damaged and cannot be processed practically, it is required to remove tire beads.
【0003】[0003]
【発明が解決しようとする課題】ところが、この大型ゴ
ムタイヤ(以下タイヤと略称)からビードリング(以下
ビードと略称)を引き抜く際には、引き抜き爪を含む治
具によっても片側だけで25,000Kg以上の引き抜
き力が必要であって、しかも、この引き抜き作業もタイ
ヤがタイヤメーカーによってビードとタイヤの接着力が
異なるため、一定速度での引き抜き処理では、ビードが
切断されて抜けない支障が生じるほか、古タイヤの摩耗
具合がそれぞれ異っているために引き抜き爪とタイヤ内
側との引掛かり具合が狂って引き抜き不良となって、作
業性が悪くなるなどの問題があった。さらに、大型タイ
ヤではビードとゴムとの絡み具合も大きく異なってい
て、引き抜かれるビードにへばり付くゴム量がまちまち
となって、ビードにゴムが多くへばり付いた場合にはビ
ードを廃材として事後処理する際に取引を拒否される支
障が生ずる問題を起こす結果となっている。However, when a bead ring (hereinafter abbreviated as "bead") is pulled out of this large rubber tire (hereinafter abbreviated as "tire"), 25,000 kg or more can be obtained on one side only by a jig including a pulling claw. In addition, since the tires have different adhesive strength between the bead and the tire depending on the tire manufacturer, the pulling process at a constant speed may cause the beads to be cut off and prevent them from coming off. Since the worn tires are different in wear condition, there is a problem that the pulling claw and the inside of the tire are entangled with each other, resulting in poor pullout and poor workability. Furthermore, in the case of large tires, the degree of entanglement between the bead and the rubber is also greatly different, and the amount of rubber sticking to the bead being pulled out varies, and if a lot of rubber sticks to the bead, the bead is discarded as waste material As a result, there is a problem in that the transaction is refused during processing.
【0004】本発明は、これら従来の欠点を容易に排除
しようとするもので、大型ゴムタイヤからビードの引き
抜く力と速度を調整して、ビード引き抜き作業を的確に
すると共に、ビード除去の作業においてタイヤ内側と引
き抜き爪の位置ずれを防止して作業不良の発生率を大巾
に低下させ、しかもタイヤ装着不良もなく安全に保持で
き、かつ引き抜かれるビードにゴムがへばり付くことな
く効率よく処分でき信頼性も高くビード除去作業能率を
も大巾に高められるタイヤビード除去装置を提供するこ
とを目的とするものである。SUMMARY OF THE INVENTION The present invention is intended to easily eliminate these conventional disadvantages, and adjusts the bead withdrawing force and speed from a large rubber tire so that the bead withdrawing operation can be accurately performed and the tire can be removed in the bead removing operation. Prevents misalignment between the inside and the pull-out claw, greatly reduces the incidence of work failures, keeps tires intact, keeps them safe, and allows for efficient disposal without sticking rubber to the pulled-out beads. It is an object of the present invention to provide a tire bead removing device which has high reliability and can greatly enhance bead removing operation efficiency.
【0005】[0005]
【課題を解決するための手段】本発明は、ゴムタイヤを
載置して昇降するタイヤ設置台と、該タイヤ設置台上の
ゴムタイヤのリム部にあるビードの引き抜き爪を油圧回
路のある駆動部によって摺動自在に設けたビード除去機
構と、前記ビードの引き抜き爪を挿脱する開口部があ
り、この開口部を開閉する治具板とを設け、該治具板に
前記ゴムタイヤを保持するタイヤ押え板を接離自在に対
向配備すると共に、前記引き抜き爪のビード引き抜き力
とビード引き抜き速度とが反比例するように、前記駆動
部の油圧回路に設けた油圧ポンプを一定圧力まで上昇し
たときに油圧ポンプの吐出量を設定値まで自動的に制御
する機構を備えたことを特徴とするものである。SUMMARY OF THE INVENTION According to the present invention, a tire mounting table on which a rubber tire is placed and raised and lowered, and a bead pulling claw on a rim portion of the rubber tire on the tire mounting table are driven by a driving unit having a hydraulic circuit. A bead removing mechanism slidably provided, and a jig plate having an opening for inserting and removing the bead withdrawing claw, and a jig plate for opening and closing the opening, and a tire presser holding the rubber tire on the jig plate. When the hydraulic pump provided in the hydraulic circuit of the drive unit is raised to a certain pressure so that the plate is freely opposed to and separated from each other and the bead pulling force of the pulling claw is inversely proportional to the bead pulling speed, the hydraulic pump is And a mechanism for automatically controlling the discharge amount to a set value.
【0006】また、本発明では、タイヤ設置台上のゴム
タイヤの移動経路中にゴムタイヤの内側を検知するタイ
ヤ位置検出用の反射形光電センサーを前記タイヤ押え板
に備えているものであって、該光電センサーによって前
記ゴムタイヤ内側と引き抜き爪の間隔を制御する構成と
したことも特徴としている。According to the present invention, the tire pressing plate is provided with a reflective photoelectric sensor for detecting a tire position for detecting the inside of the rubber tire in a movement path of the rubber tire on the tire mounting table. It is also characterized in that the photoelectric sensor controls the distance between the inside of the rubber tire and the pull-out claw.
【0007】さらに、前記治具板が、前記ビード引き抜
き開口部に臨んだスライド板を摺動自在に対設配備され
ているものであって、各スライド板の駆動シリンダまた
はこの駆動シリンダに代えて、圧力を電気信号に変換し
て制御できるサーボモータを前記油圧回路中に設けて、
引き抜き圧力の検出によってシリンダまたはサーボモー
タを制御し、スライド板で前記開口部を狭くする構成と
したことも特徴としている。この場合、前記押え板が、
ゴムタイヤ側面に押し当てられる位置決めシリンダを有
し、該駆動シリンダを前記ビード引き抜き爪の引き抜き
駆動部の油圧回路に備え、前記治具板にゴムタイヤを一
定圧で押し当てる構成とし、油圧回路の油圧ポンプが、
低圧大流量、高圧小流量の制御を一台の油圧ポンプで行
うことができるものであって、圧力の増減によって吐出
量も自動的に変化させてビード・引き抜き爪を早送り、
遅送りができ、高圧時には引き抜き速度を遅送りでま
た、低圧時には引き抜き速度を早送りで油圧制御するも
のである。Further, the jig plate is provided so as to be slidably opposed to a slide plate facing the bead pull-out opening, and a driving cylinder of each slide plate or this driving cylinder is used instead of the driving cylinder. Provided in the hydraulic circuit a servo motor that can control by converting pressure into an electric signal,
It is also characterized in that the cylinder or the servomotor is controlled by detecting the extraction pressure, and the opening is narrowed by a slide plate. In this case, the holding plate is
A hydraulic pump for a hydraulic circuit having a positioning cylinder pressed against a side surface of a rubber tire, the drive cylinder being provided in a hydraulic circuit of a pull-out driving unit of the bead pull-out claw, and pressing the rubber tire against the jig plate at a constant pressure; But,
Low pressure large flow, high pressure small flow can be controlled by a single hydraulic pump, the discharge amount is automatically changed by increasing or decreasing the pressure, and the bead / pulling claw is fast-forwarded,
Slow feed can be performed, and the hydraulic pressure is controlled by slowing the drawing speed at high pressure and by rapidly moving the drawing speed at low pressure.
【0008】[0008]
【発明の実施の形態】本発明の実施形態では、ゴムタイ
ヤを載置して昇降するタイヤ設置台上のゴムタイヤのリ
ム部にあるビードを、油圧回路のある駆動部によって摺
動自在に設けたビード除去機構の引き抜き爪が引き抜く
際に、このビード引き抜き爪の引き抜き力(圧力)と、
引き抜く速度とを自動調整してビードが切断されること
なく確実容易にゴムタイヤから除去することができる。
即ち、タイヤメーカーによってビードとゴムタイヤの接
着力が異なるために引き抜き速度が一定速度ではビード
が切断して抜けない不具合が生じるので、ビード引き抜
き爪に大きな引き抜き力を必要とする場合は、引き抜き
速度を遅くし、また大きな引き抜き力を必要としない時
には引き抜き速度を早くする調整をしてビードを能率良
く除去する。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a preferred embodiment of the present invention, a bead provided on a rim portion of a rubber tire on a tire mounting table on which a rubber tire is placed and raised is slidably provided by a drive unit having a hydraulic circuit. When the pulling claw of the removing mechanism pulls out, the pulling force (pressure) of this bead pulling claw,
By automatically adjusting the pulling speed, the beads can be easily and reliably removed from the rubber tire without being cut.
In other words, since the adhesion force between the bead and the rubber tire is different depending on the tire manufacturer, there is a problem that the bead is not cut and pulled out at a constant drawing speed, so if a large pulling force is required for the bead pulling claw, the pulling speed should be reduced. When the speed is slow, and when a large pulling force is not required, the pulling speed is adjusted so as to remove the beads efficiently.
【0009】この場合、ビード引き抜き爪は油圧シリン
ダによって保持されたゴムタイヤに対して前進後退させ
てビードを引掛け除去させるが、油圧シリンダを含む油
圧回路中に使用した油圧ポンプを一定圧力まで上昇した
時にポンプの吐出量を設定値まで自動的にコントロール
されてビード除去作業が行われる。そして、前記ゴムタ
イヤのビード除去機構には、前記ビードの引き抜き爪を
挿脱する開口部があり、この開口部を開閉する治具板を
設け、該治具板に前記ゴムタイヤを保持するタイヤ押え
板を接離自在に対向配備してあって、治具板に対するゴ
ムタイヤの位置値決めは確実にできるようにしてある。In this case, the bead pulling claw is moved forward and backward with respect to the rubber tire held by the hydraulic cylinder to hook and remove the bead, but the hydraulic pump used in the hydraulic circuit including the hydraulic cylinder is raised to a constant pressure. At times, the discharge amount of the pump is automatically controlled to a set value, and a bead removing operation is performed. The bead removing mechanism for the rubber tire has an opening for inserting and removing the bead withdrawing claw, a jig plate for opening and closing the opening, and a tire holding plate for holding the rubber tire on the jig plate. Are arranged so as to be able to freely contact and separate from each other, so that the position value of the rubber tire with respect to the jig plate can be reliably determined.
【0010】かくして、ゴムタイヤをタイヤ設置台に載
置し、引き抜き爪がタイヤ内側に入る位置の待機位置ま
で昇降機構で上昇させてから、タイヤ押え板を押し出し
ゴムタイヤを治具板に一定圧で押し付け保持して、ゴム
タイヤが引き抜き位置にセットされる。この時タイヤ内
側と引き抜き爪の位置を自動検知する。これは、ゴムタ
イヤの内側と引き抜き爪との間隔のバランスが保たれな
いとビードが抜けるか否かに大きく影響するし、古ゴム
タイヤ外径の摩耗具合がタイヤによって異なるので、タ
イヤ設置台の位置を近接スイッチ等にて一定の位置に固
定すると高さがタイヤによってまちまちになって良い引
き抜きができなくなるため、光電センサーによってゴム
タイヤの内側(内径)を検知して引き抜き爪とタイヤ内
側の引掛かり具合を最良にする。[0010] Thus, the rubber tire is placed on the tire mounting table, raised by the elevating mechanism to a standby position where the pulling claw enters the inside of the tire, and then the tire pressing plate is pushed out and the rubber tire is pressed against the jig plate at a constant pressure. While holding, the rubber tire is set to the pulled-out position. At this time, the position of the inside of the tire and the position of the pull-out claw are automatically detected. If the balance between the inside of the rubber tire and the pull-out claw is not maintained, it has a large effect on whether the bead comes off or not, and the wear condition of the old rubber tire outer diameter differs depending on the tire. When fixed to a certain position with a proximity switch, etc., the height varies depending on the tire and it becomes impossible to pull out well. Therefore, the inside of the rubber tire (inner diameter) is detected by the photoelectric sensor and the pulling claw and the hooking condition of the tire inside are detected. Do the best.
【0011】さらに、前記治具板の開口部の大きさを引
き抜き爪の引き抜き力に対応して自動的に調整する。例
えば、ビードとゴムの接着力(絡み具合)がメーカーに
より大きく異なるため、引き抜く場合にビードにゴムが
へばり付く量が異なる。このためビードにゴムが多くへ
ばり付いた場合は、開口部を小さくしてビードからゴム
を剥ぎ取り除去する必要がある。又、引き抜いたビード
を廃材として売却するが、ゴムが多く付着しているので
引取り業者が引取りを拒否する場合もあって、ゴムの付
着をできる限り少なくするためとする。ビードにゴムが
多く付く場合は引き抜く力(圧力)が大となるためスラ
イド板用シリンダーを動かし、治具板の開口部を狭くす
ることで調整する。Further, the size of the opening of the jig plate is automatically adjusted according to the pulling force of the pulling claw. For example, the adhesive strength (entanglement degree) between the bead and the rubber varies greatly depending on the manufacturer, so that the amount of sticking of the rubber to the bead when the bead is pulled out differs. For this reason, when a large amount of rubber sticks to the bead, it is necessary to make the opening smaller and peel off the rubber from the bead. In addition, the extracted beads are sold as waste material, but since a large amount of rubber is adhered to, there is a case where a take-back trader refuse to take the bead, so that the adhesion of rubber is reduced as much as possible. If the bead contains a lot of rubber, the pull-out force (pressure) will be large, so adjust by moving the slide plate cylinder and narrowing the opening of the jig plate.
【0012】さらに、押え板にて、タイヤの側面を引き
抜き中でも常に一定の力で治具板に押し当て、治具板に
対しビードを直角に近い状態で引き抜くようにする。押
え板にてタイヤを治具板に押し当てない状態で引き抜く
と、タイヤがぐちゃぐちゃに変形し、ビードが切断する
ので、一定の力でタイヤを治具板に押し当てると、治具
板と押え板との間を変形せずに上下するため、常にビー
ドが直角に近い状態で引き抜かれるように配慮すること
が好ましい。[0012] Further, even when the side surface of the tire is pulled out by the holding plate, the tire is always pressed against the jig plate with a constant force, and the bead is pulled out at a right angle to the jig plate. If you pull out the tire with the presser plate without pressing it against the jig plate, the tire will be distorted and the bead will be cut, so if you press the tire against the jig plate with a certain force, the jig plate and the presser In order to move up and down without deforming between the plates, it is preferable to take care that the beads are always pulled out at a nearly right angle.
【0013】[0013]
【実施例】本発明の実施例を図1乃至図5の例で説明す
ると、ゴムタイヤAを載置して昇降するリフタ1のある
タイヤ設置台2と、該タイヤ設置台2上のゴムタイヤA
のリム部にあるビードBの引き抜き爪3を油圧回路30
のある油圧ユニット4で制御される駆動部5によって摺
動自在に設けたビード除去機構と、前記ビードBの引き
抜き爪3を挿脱する開口部6があり、この開口部6を開
閉する治具板7とを設け、該治具板7に前記ゴムタイヤ
Aを保持するタイヤ押え板8を接離自在に対向配備する
と共に、前記引き抜き爪3のビード引き抜き力とビード
引き抜き速度とが反比例するように、前記駆動部5の油
圧回路に設けた油圧ポンプ9を一定圧力まで上昇したと
きに油圧ポンプの吐出量を設定値まで自動的に制御する
機構の制御操作盤10を備えてタイヤビード除去装置と
してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 5. A tire mounting table 2 having a lifter 1 on which a rubber tire A is mounted and raised and lowered, and a rubber tire A on the tire mounting table 2 are shown.
The extraction claw 3 of the bead B in the rim portion of the
There is a bead removing mechanism slidably provided by a drive unit 5 controlled by a hydraulic unit 4 having an opening, and an opening 6 for inserting and removing the pull-out claw 3 of the bead B. A jig for opening and closing the opening 6 is provided. The jig plate 7 is provided with a tire pressing plate 8 for holding the rubber tire A so as to be able to approach and separate freely, and the bead pulling force of the pulling claw 3 and the bead pulling speed are inversely proportional. And a control operation panel 10 of a mechanism for automatically controlling the discharge amount of the hydraulic pump to a set value when the hydraulic pump 9 provided in the hydraulic circuit of the drive unit 5 is raised to a certain pressure. is there.
【0014】前記治具板7としては、前記ビード引き抜
き開口部6に臨んだスライド板11を摺動自在に一対に
対設配備されているものであって、各スライド板11の
駆動シリンダ12を前記油圧回路30中に設けて、引き
抜き圧力の検出によってシリンダ12を制御し、スライ
ド板11で前記開口部6を狭くする構成(図3)として
あり、また、前記タイヤ押え板8またはタイヤ押え板8
に設けたシリンダ・ガイド取付台29には前記タイヤ設
置台2上のゴムタイヤAの移動経路中にゴムタイヤAの
内側を検知するタイヤ位置検出用の反射形光電センサー
13を備えているものであって、該光電センサー13に
よって前記ゴムタイヤ内側と引き抜き爪3との間隔を調
整する構成としてある。(図4) なお、前記シリンダ12に代えて、圧力を電気信号に変
換して制御するサーボモータを設けてスライド板11を
駆動する構成とすることもできる。As the jig plate 7, a pair of slide plates 11 slidably facing the bead pull-out opening 6 are slidably provided in a pair, and a driving cylinder 12 of each slide plate 11 is provided. It is provided in the hydraulic circuit 30 to control the cylinder 12 by detecting a pull-out pressure, and to narrow the opening 6 by the slide plate 11 (FIG. 3). The tire press plate 8 or the tire press plate 8
The cylinder / guide mounting base 29 provided with a reflective photoelectric sensor 13 for detecting a tire position which detects the inside of the rubber tire A in the movement path of the rubber tire A on the tire mounting base 2. The distance between the inside of the rubber tire and the pull-out claw 3 is adjusted by the photoelectric sensor 13. (FIG. 4) Note that, instead of the cylinder 12, a servo motor that converts pressure into an electric signal and controls the electric signal may be provided to drive the slide plate 11.
【0015】前記タイヤ押え板8には、ゴムタイヤ側面
に押し当てられる位置決めシリンダ14を有し、該駆動
シリンダ14を油圧回路30中に設け、前記ビード引き
抜き爪3の引き抜き駆動部5とシリンダ14とをそれぞ
れ切換弁制御回路15,15 1 を介して備え、前記治
具板7にゴムタイヤを一定圧で押し当てる構成としてあ
る。さらに、前記油圧ユニット4に用いられる前記油圧
ポンプ9としては、低圧大流量、高圧小流量の制御を一
台の油圧ポンプで行うことができるものであって、圧力
の増減によって吐出量も自動的に変化させて、ビード・
引き抜き爪を早送り、遅送りができ、高圧時例えば14
0〜200Kg/cm2 には引き抜き速度を20〜3
0mm/secの遅送りで、また、低圧時の20〜50
Kg/cm2には引き抜き速度を80〜100mm/s
ecの早送りで自動的にコントロールされる油圧制御系
を用いるのがよいが、この油圧回路では自動コントロー
ルできる油圧ポンプに代えて普通の油圧ポンプを用いて
他の油圧機器例えば電磁操作弁のON−OFFにより高
圧小流量、低圧大流量の切換えを行う構成や、切換弁を
サーボ弁とコントローラとの組み合わせ圧力・速度を自
由にコントロールできる構成を用いることもできる。The tire pressing plate 8 has a rubber tire side surface.
A positioning cylinder 14 pressed against
The cylinder 14 is provided in the hydraulic circuit 30 and the bead pull is provided.
The pull-out drive unit 5 of the pull-out claw 3 and the cylinder 14
Switching valve control circuits 15, 15 1 Provided through
The rubber plate is pressed against the component plate 7 at a constant pressure.
You. Further, the hydraulic pressure used for the hydraulic unit 4
For the pump 9, control of low pressure large flow rate and high pressure small flow rate is one.
Can be performed by one hydraulic pump
The discharge rate is automatically changed by increasing or decreasing the
The pulling claw can be fast-forwarded and slow-forwarded.
0-200Kg / cm2 20 to 3 withdrawal speed
0mm / sec slow feed and low pressure 20-50
Kg / cm2Has a drawing speed of 80 to 100 mm / s
Hydraulic control system automatically controlled by ec fast-forward
It is recommended to use
Using a normal hydraulic pump instead of a hydraulic pump
High by other hydraulic equipment such as ON / OFF of solenoid operated valve
Use a configuration that switches between low pressure flow and low pressure high flow, and a switching valve.
Automatically sets the combined pressure and speed of the servo valve and controller.
A configuration that can be controlled freely can be used.
【0016】なお前記油圧ユニット4としては、制御操
作盤10に関連して備えられ、図5に示すよう油圧回路
30を持ち、モータ19、カップリング20のある前記
油圧ポンプ9及び油圧タンク16と、ビード引き抜き用
シリンダの駆動部5と、絞り弁21を付設したタイヤ位
置決め用シリンダ14とを配備し、さらに、減圧弁1
7、チェック弁18とを備えてビード引き抜き力(圧
力)と引き抜き速度との自動調整ができるような油圧制
御回路を構成してある。The hydraulic unit 4 is provided in association with the control operation panel 10 and has a hydraulic circuit 30, as shown in FIG. , A drive unit 5 for a bead pulling cylinder, a tire positioning cylinder 14 provided with a throttle valve 21, and a pressure reducing valve 1.
7. A hydraulic control circuit comprising a check valve 18 and capable of automatically adjusting the bead pulling force (pressure) and the pulling speed.
【0017】なお、この油圧制御回路では、予め制御操
作盤10に設定された作動工程に従って運転されるが、
例えばタイヤの位置決めを行う場合は、切替弁制御回路
15 1 の切替弁21を作動させることにより、油圧ポ
ンプ9にて吐出された圧油は減圧弁17にて減圧され、
位置決めシリンダ14は、前進・後退する。引抜く場合
は、圧油は切換弁制御回路15の切換弁を切換えること
により、引き抜きシリンダの駆動部5に入り前進・後退
を行う。この場合油圧ポンプ9は常時回転しており、油
圧回路はしゃ断され圧油が流れない場合は、設定圧まで
回路内圧力が上昇しており、この時油圧ポンプ9の吐出
量はゼロとなっている。切換弁から作動することにより
油圧回路内の圧力が下り油圧ポンプ内の自動調整弁が働
き、圧力に応じた油を回路内に流すようになってビード
引き抜き力と、引き抜き速度との自動調整してタイヤか
らビードを能率よく除去することができる。In this hydraulic control circuit, control operation is performed in advance.
The operation is performed according to the operation process set in the work table 10,
For example, when positioning tires, the switching valve control circuit
Fifteen 1 By operating the switching valve 21 of the
The pressure oil discharged at the pump 9 is reduced in pressure by the pressure reducing valve 17,
The positioning cylinder 14 moves forward and backward. When pulling out
Means that the pressure oil switches the switching valve of the switching valve control circuit 15.
To move forward and backward into the drive unit 5 of the drawing cylinder
I do. In this case, the hydraulic pump 9 is constantly rotating,
If the pressure circuit is cut off and pressure oil does not flow,
The pressure in the circuit is increasing, and the hydraulic pump 9
The amount is zero. By operating from the switching valve
The pressure in the hydraulic circuit drops and the automatic adjustment valve in the hydraulic pump operates.
Oil flows according to the pressure into the circuit
Automatic adjustment of pulling force and pulling speed
The beads can be efficiently removed.
【0018】前記リフタ1は、フレーム22に昇降自在
に装着され、伝動機構23例えばチエンホイール及びチ
エンを介してギヤモータ24に連絡し、該ギヤモータ2
4の駆動によってタイヤ設置台2を上下動させるもの
で、フレーム22に対向して治具板7とタイヤ押え板8
を配備してある。The lifter 1 is mounted on a frame 22 so as to be able to move up and down, and is connected to a gear motor 24 via a transmission mechanism 23, for example, a chain wheel and a chain.
The jig plate 7 and the tire holding plate 8 are opposed to the frame 22 by moving the
Has been deployed.
【0019】図中、25は架台、26はガイドロッドで
引き抜き爪3の摺動行程に配備される。27はガイドレ
ールで前記ビード引き抜き爪の往復動の経路に備えられ
る。28はガイドロッドでタイヤ押え板8の摺動行程に
備えられる。29はシリンダ・ガイド取付台である。In the drawing, reference numeral 25 denotes a gantry, and reference numeral 26 denotes a guide rod, which is provided in the sliding stroke of the pull-out claw 3. Reference numeral 27 denotes a guide rail provided on a reciprocating path of the bead pulling claw. Reference numeral 28 denotes a guide rod which is provided for a sliding stroke of the tire pressing plate 8. 29 is a cylinder / guide mounting base.
【0020】実施形態での装置についての動作について
図6乃至図9で説明すると、リフタ1のタイヤ設置台2
上にタイヤAを固定手段(図示せず)によって載置保持
し、このタイヤのセット位置(図6)からモータ24を
起動してリフタ1によって引き抜き爪3がタイヤ内側に
入る待機位置まで上昇させ、次で前記引き抜き爪3が駆
動部5によって前進し、タイヤAの内側に入ってきてビ
ード引き抜き位置にセットされる。(図7)。The operation of the apparatus according to the embodiment will be described with reference to FIGS. 6 to 9.
The tire A is mounted and held on the upper side by fixing means (not shown), and the motor 24 is started from the set position of the tire (FIG. 6) to be raised by the lifter 1 to the standby position where the pull-out claw 3 enters the inside of the tire. Next, the pull-out claw 3 is advanced by the drive unit 5, enters the inside of the tire A, and is set at the bead pull-out position. (FIG. 7).
【0021】この際、タイヤAの内側と引き抜き爪3と
の間隔を良好に保つために、タイヤ押え板8またはシリ
ンダ・ガイド取付台29に設けた光電センサー13によ
って、タイヤAの内側(内径縁)を検出し引き抜き爪3
とタイヤ内側の引掛かり具合が最良にするようにリフタ
を停止させる。そしてタイヤ押え板8をシリンダ14に
よって前進させ、タイヤAを治具板7に一定圧で軽く押
し付け、タイヤがずり落ちない程度に維持すると、リフ
タ1が下降し、タイヤ受け部のあるタイヤ設置台2から
離れ、ビード引き抜き位置となる(図8)。At this time, in order to keep a good distance between the inside of the tire A and the pull-out claw 3, the photoelectric sensor 13 provided on the tire pressing plate 8 or the cylinder / guide mounting base 29 causes the inside of the tire A (the inner peripheral edge) to be maintained. ) Is detected and the pull-out nail 3 is detected.
And stop the lifter to get the best fit inside the tire. When the tire holding plate 8 is advanced by the cylinder 14 and the tire A is lightly pressed against the jig plate 7 at a constant pressure to maintain the tire not to slip down, the lifter 1 is lowered, and the tire mounting table having the tire receiving portion is lowered. 2 and bead withdrawal position (FIG. 8).
【0022】かくして、ビード引き抜き爪3を駆動部5
で高圧力時には引き抜き速度を遅送りで後退させると、
引き抜き爪3がタイヤAのリム部に喰い込みタイヤを引
き裂いて、タイヤリム部のビードBに引き抜き爪3が引
掛かってビード引き抜きが始まり、図9に示すように引
き抜き爪3がビードBを引き抜きながら後退すると、こ
の位置に配備されたスイッチなどの検知器(図示せず)
によってシリンダ12を駆動し、前記治具板7の開口部
6に臨ましめられた一対のスライド板11を閉方向に移
動して開口部6を狭くする。この場合、前記治具板7の
開口部6をビード引き抜き力に対応して大きさを自動的
に調整してビードBにへばりつくゴムが多く附着しない
ように配慮する。例えばビードにゴムが多くへばり付い
たときは開口部6を小さくする必要があるが、制御油圧
回路の切換弁の操作でシリンダ12の調整を自動的に行
って引き抜きビードからゴム剥離機能を働かせることが
できる。なおビードにゴムが多く付く場合は、ビード引
き抜き力(圧力)が大となるので、油圧回路中に圧力検
知器(図示せず)を設けてこの圧力を検出し、自動的に
スライド板11のシリンダ12を起動して治具板7の開
口部6を狭くすることでもよい。Thus, the bead pulling claw 3 is
At high pressure, if the pulling speed is reduced by slow feed,
The pull-out claw 3 bites into the rim of the tire A, tears the tire, and the pull-out claw 3 is hooked on the bead B of the tire rim to start bead pull-out. As shown in FIG. Then, a detector such as a switch (not shown) arranged at this position
Then, the cylinder 12 is driven to move the pair of slide plates 11 facing the opening 6 of the jig plate 7 in the closing direction to narrow the opening 6. In this case, the size of the opening 6 of the jig plate 7 is automatically adjusted in accordance with the bead pull-out force so that a large amount of rubber sticking to the bead B is not attached. For example, when a large amount of rubber sticks to the bead, it is necessary to make the opening 6 small. However, the cylinder 12 is automatically adjusted by operating the switching valve of the control hydraulic circuit so that the rubber peeling function is operated from the drawn bead. be able to. When a large amount of rubber adheres to the bead, the bead pulling force (pressure) becomes large. Therefore, a pressure detector (not shown) is provided in the hydraulic circuit to detect this pressure, and the slide plate 11 is automatically moved. Alternatively, the cylinder 12 may be activated to narrow the opening 6 of the jig plate 7.
【0023】前記タイヤ押え板8によってタイヤAの側
面を常に一定の力で治具板7に押し当ててビード引き抜
き作業をするものであるが、該治具板7に対し、ビード
Bを直角方向に近い状態で引き抜くことがタイヤの変形
が生ずることなく作業効率を向上させるために必要なこ
とであり、ビード引き抜き力でタイヤを治具板7と押え
板8との間を上下させて常にビードが直角方向に引き抜
くことができるように押え板8の制動を考慮する。The side of the tire A is always pressed against the jig plate 7 by the tire pressing plate 8 with a constant force to perform bead pull-out operation. It is necessary to improve the working efficiency without deforming the tire by pulling it in a state close to that of the tire. Consider the braking of the holding plate 8 so that the holding plate 8 can be pulled out at right angles.
【0024】[0024]
【発明の効果】本発明は、ゴムタイヤを載置して昇降す
るタイヤ設置台と、該タイヤ設置台上のゴムタイヤのリ
ム部にあるビードの引き抜き爪を油圧回路のある駆動部
によって摺動自在に設けたビード除去機構と、前記ビー
ドの引き抜き爪を挿脱する開口部があり、この開口部を
開閉する治具板とを設け、該治具板に前記ゴムタイヤを
保持するタイヤ押え板を接離自在に対向配備すると共
に、前記引き抜き爪のビード引き抜き力とビード引き抜
き速度とが反比例するように、前記駆動部の油圧回路に
設けた油圧ポンプを一定圧力まで上昇したときに油圧ポ
ンプの吐出量を設定値まで自動的に制御する機構を備え
たことにより、大型ゴムタイヤからビードの引き抜く力
と速度を調整して、ビード引き抜き作業を的確にすると
共に、ビード除去の作業においてタイヤ内側と引き抜き
爪の位置ずれを防止して作業不良の発生率を大巾に低下
させ、しかもタイヤ装着不良もなく安全に保持でき、か
つ引き抜かれるビードにゴムがへばり付くことなく効率
よく処分でき信頼性も高くビード除去作業能率をも大巾
に高められる。According to the present invention, a tire mounting table on which a rubber tire is placed and raised and lowered, and a bead pulling claw on a rim portion of the rubber tire on the tire mounting table can be slidably moved by a driving unit having a hydraulic circuit. There is a bead removal mechanism provided, and an opening for inserting and removing the bead pulling claw, a jig plate for opening and closing this opening is provided, and a tire pressing plate for holding the rubber tire is brought into and out of the jig plate. When the hydraulic pump provided in the hydraulic circuit of the drive unit is raised to a certain pressure so that the bead pulling force of the pulling claw is inversely proportional to the bead pulling speed, the discharge amount of the hydraulic pump is reduced. By providing a mechanism that automatically controls the set value, the bead pulling force and speed can be adjusted from large rubber tires to ensure accurate bead pulling work and remove beads. Prevents misalignment between the inside of the tire and the pull-out claw in the industry, greatly reducing the incidence of work failures, and also keeps the tires safely intact without incomplete mounting, and is efficient without sticking the rubber to the bead being pulled out It can be disposed of well, has high reliability, and can greatly improve the bead removal efficiency.
【図1】本発明の実施例を示す側面図である。FIG. 1 is a side view showing an embodiment of the present invention.
【図2】図1の例の正面図である。FIG. 2 is a front view of the example of FIG.
【図3】図1の例で用いられる治具板を示し、(a)は
その正面図、(b)はb−b線における縦断面図であ
る。3A and 3B show a jig plate used in the example of FIG. 1, wherein FIG. 3A is a front view thereof, and FIG. 3B is a longitudinal sectional view taken along line bb.
【図4】図1の例の一作用状態を示し、タイヤ位置検出
時の一部拡大縦断面図である。FIG. 4 is a partially enlarged longitudinal sectional view showing an operation state of the example of FIG. 1 and detecting a tire position.
【図5】図1の例の油圧ユニットの油圧回路図である。FIG. 5 is a hydraulic circuit diagram of the hydraulic unit of the example of FIG.
【図6】本発明の作業状態を示し、タイヤのセット状態
の一部縦断面図である。FIG. 6 is a partial longitudinal sectional view showing a working state of the present invention and showing a tire setting state.
【図7】図6の例の次工程のタイヤ待機位置の一部縦断
面図である。FIG. 7 is a partial longitudinal sectional view of a tire standby position in a next step of the example of FIG. 6;
【図8】図7の例の次工程のタイヤからビードの引き抜
き位置の一部縦断面図である。8 is a partial longitudinal sectional view of a position where a bead is pulled out from a tire in a next step of the example of FIG.
【図9】図8の例の次工程のタイヤからビードの引き抜
き作業状態の一部縦断面図である。FIG. 9 is a partial longitudinal sectional view of a state in which a bead is pulled out from a tire in the next step of the example of FIG. 8;
A ゴムタイヤ B ビード 1 リフタ 2 タイヤ設置台 3 ビード引き抜き爪 4 油圧ユニット 5 駆動部 6 開口部 7 治具板 8 タイヤ押え板 9 油圧ポンプ 10 制御操作盤 11 スライド板 12 シリンダ 13 光電センサー 14 シリンダ 15,151 切換弁制御回路 16 油圧タンク 29 シリンダ・ガイド取付台 30 油圧回路Reference Signs List A rubber tire B bead 1 lifter 2 tire mounting stand 3 bead pulling claw 4 hydraulic unit 5 drive unit 6 opening 7 jig plate 8 tire holding plate 9 hydraulic pump 10 control operation panel 11 slide plate 12 cylinder 13 photoelectric sensor 14 cylinder 15, 15 1 Switching valve control circuit 16 Hydraulic tank 29 Cylinder / guide mount 30 Hydraulic circuit
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−87177(JP,A) 特開 昭50−107086(JP,A) 特開 昭50−109978(JP,A) 特開 平9−262833(JP,A) 特開2000−43046(JP,A) 特開2000−127167(JP,A) 特開 平4−302702(JP,A) 実開 昭55−163504(JP,U) 特許3009891(JP,B1) (58)調査した分野(Int.Cl.7,DB名) B29B 17/00 - 17/02 B09B 5/00 F15B 11/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-87177 (JP, A) JP-A-50-107086 (JP, A) JP-A-50-109978 (JP, A) 262833 (JP, A) JP-A-2000-43046 (JP, A) JP-A-2000-127167 (JP, A) JP-A-4-302702 (JP, A) JP-A-55-163504 (JP, U) Patent 3009891 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) B29B 17/00-17/02 B09B 5/00 F15B 11/00
Claims (5)
置台と、該タイヤ設置台上のゴムタイヤのリム部にある
ビードの引き抜き爪を油圧回路のある駆動部によって摺
動自在に設けたビード除去機構と、前記ビードの引き抜
き爪を挿脱する開口部があり、この開口部を開閉する治
具板とを設け、該治具板に前記ゴムタイヤを保持するタ
イヤ押え板を接離自在に対向配備すると共に、前記引き
抜き爪のビード引き抜き力とビード引き抜き速度とが反
比例するように、前記駆動部の油圧回路に設けた油圧ポ
ンプを一定圧力まで上昇したときに油圧ポンプの吐出量
を設定値まで自動的に制御する機構を備えたことを特徴
とするタイヤビード除去装置。1. A bead removing device comprising: a tire mounting table on which a rubber tire is mounted and which is moved up and down; and a bead removal claw provided on a rim portion of the rubber tire on the tire mounting table so as to be slidable by a driving unit having a hydraulic circuit. There is a mechanism and an opening for inserting and removing the pull-out claw of the bead, a jig plate for opening and closing this opening is provided, and a tire pressing plate for holding the rubber tire is provided on the jig plate so as to be able to freely contact and separate. When the hydraulic pump provided in the hydraulic circuit of the drive unit is raised to a certain pressure, the discharge amount of the hydraulic pump is automatically adjusted to a set value so that the bead pulling force of the pulling claw is inversely proportional to the bead pulling speed. Tire bead removing device provided with a mechanism for controlling the tire bead.
経路中にゴムタイヤの内側を検知するタイヤ位置検出用
の反射形光電センサーを前記タイヤ押え板に備えている
ものであって、該光電センサーによって前記ゴムタイヤ
内側と引き抜き爪の間隔を制御する構成としたことを特
徴とする請求項1記載のタイヤビード除去装置。2. The tire presser plate further comprises a reflective photoelectric sensor for detecting a tire position, which detects the inside of the rubber tire in a movement path of the rubber tire on the tire mounting table, wherein the photoelectric sensor detects the tire position. 2. The tire bead removing device according to claim 1, wherein an interval between the inside of the rubber tire and the pull-out claw is controlled.
部に臨んだスライド板を摺動自在に対設配備されている
ものであって、各スライド板の駆動シリンダを前記油圧
回路中に設けて、引き抜き圧力の検出によってシリンダ
を制御し、スライド板で前記開口部を狭くする構成とし
たことを特徴とする請求項1または2記載のタイヤビー
ド除去装置。3. The jig plate is slidably opposed to a slide plate facing the bead pull-out opening, and a drive cylinder of each slide plate is provided in the hydraulic circuit. The tire bead removing device according to claim 1 or 2, wherein the cylinder is controlled by detecting a pull-out pressure, and the opening is narrowed by a slide plate.
てられる位置決めシリンダを有し、該駆動シリンダを前
記ビード引き抜き爪の引き抜き駆動部の油圧回路に備
え、前記治具板にゴムタイヤを一定圧で押し当てる構成
としたことを特徴とする請求項1,2または3記載のタ
イヤビード除去装置。4. The pressing plate has a positioning cylinder pressed against the side surface of the rubber tire, and the driving cylinder is provided in a hydraulic circuit of a pulling-out driving portion of the bead pulling-out claw. 4. The tire bead removing device according to claim 1, wherein the tire bead is configured to be pressed.
流量の制御を一台の油圧ポンプで行うことができるもの
であって、圧力の増減によって吐出量も自動的に変化さ
せてビード・引き抜き爪を早送り、遅送りができ、高圧
時には引き抜き速度を遅送りでまた、低圧時には引き抜
き速度を早送りで油圧制御するのもである請求項2,3
または4記載のタイヤビード除去装置。5. The hydraulic pump according to claim 1, wherein the control of the low pressure large flow rate and the high pressure small flow rate can be performed by a single hydraulic pump. 4. The hydraulic pressure control of the pulling claw can be performed at a high speed and a low speed, and the pulling speed is slow at a high pressure and the pull speed at a high speed at a low pressure.
Or the tire bead removing device according to 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000168014A JP3280012B2 (en) | 2000-06-05 | 2000-06-05 | Tire bead removal device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000168014A JP3280012B2 (en) | 2000-06-05 | 2000-06-05 | Tire bead removal device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001341132A JP2001341132A (en) | 2001-12-11 |
JP3280012B2 true JP3280012B2 (en) | 2002-04-30 |
Family
ID=18671083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000168014A Expired - Fee Related JP3280012B2 (en) | 2000-06-05 | 2000-06-05 | Tire bead removal device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3280012B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103434046A (en) * | 2013-08-30 | 2013-12-11 | 江苏科技大学 | Device for separating and recovering steel wires and rubber from waste tires |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4503879B2 (en) * | 2001-05-11 | 2010-07-14 | 寿産業株式会社 | Waste wire bead wire extractor |
CN101092051B (en) * | 2007-07-05 | 2011-08-17 | 顾洪 | Method and equipment for stripping off steel wire tire bead of junked tire |
-
2000
- 2000-06-05 JP JP2000168014A patent/JP3280012B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103434046A (en) * | 2013-08-30 | 2013-12-11 | 江苏科技大学 | Device for separating and recovering steel wires and rubber from waste tires |
CN103434046B (en) * | 2013-08-30 | 2015-10-14 | 江苏科技大学 | A kind of device steel wire in junked tire being separated with rubber and reclaiming |
Also Published As
Publication number | Publication date |
---|---|
JP2001341132A (en) | 2001-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1726824A3 (en) | Automatic engine stop and start system | |
US8440040B2 (en) | Tape adhering method and tape adhering device | |
US4826548A (en) | Method for applying a protective film on one face of a series of ophthalmic lenses | |
US6669877B2 (en) | Malfunction-detecting method in injection molding machines | |
CN201366451Y (en) | Automatic belt head loosening device | |
JPS63256430A (en) | Adhering device for bandlike material | |
CN111634723B (en) | Production line of intermediate product of explosion-proof diaphragm | |
JP3280012B2 (en) | Tire bead removal device | |
JP4468348B2 (en) | Tire bead removal method and apparatus | |
US5385626A (en) | Strip winder for a tire building machine | |
JP3575585B2 (en) | Method and apparatus for drilling holes for detecting position of steel strip | |
CN112976596B (en) | Feeding mechanism and rubber plug assembling equipment | |
JP3026008B2 (en) | Automatic membrane roll changing device and method | |
JP2007062296A (en) | Manufacturing process of tire and tread rubber sheet feeding apparatus | |
US4295399A (en) | Apparatus for intermittent feeding of web-type or strip-type material | |
CN114749542A (en) | Automobile fender stamping device with size calibration cutting mechanism | |
CN110323157B (en) | Adhesive tape joining method and adhesive tape joining apparatus | |
KR19990012439U (en) | Scrap winding and taking out device of scrap bowler | |
JPH10109215A (en) | Shearing method for plate and shearing machine | |
CN220532705U (en) | Metal extruder | |
CN221214944U (en) | Auxiliary pressing system for front frame LOGO of display | |
CN217102412U (en) | Double faced adhesive tape sticking mechanism | |
CN112570640B (en) | Automatic pressfitting tyre chain forming machine | |
JPH0657591U (en) | Wrap film cutting equipment | |
JP2768065B2 (en) | Speed control method of die set cutting machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |