JPS60131155A - Burr removing apparatus for ring-shaped plastic product - Google Patents
Burr removing apparatus for ring-shaped plastic productInfo
- Publication number
- JPS60131155A JPS60131155A JP23877883A JP23877883A JPS60131155A JP S60131155 A JPS60131155 A JP S60131155A JP 23877883 A JP23877883 A JP 23877883A JP 23877883 A JP23877883 A JP 23877883A JP S60131155 A JPS60131155 A JP S60131155A
- Authority
- JP
- Japan
- Prior art keywords
- product
- ring
- polishing
- shaped plastic
- polishing jig
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/20—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明装置は、リング状プラスチック製品の成形の際に
できるパリの除去を、一度に多数個かつ短時間に処理す
る技術に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a technique for removing a large number of particles at once and in a short period of time, which are formed during the molding of ring-shaped plastic products.
従来技術
精密機器(半導体等を含む電子機器、写真フィルムおよ
びカメラ等の光学機器)用のプラスチックワッシャ類、
たとえば(または−例として)ディスクフィルムのフィ
ルム溶着用リング等のプラスチックシートからの打抜き
、あるいは射出成形等により成形加工されたリング状プ
ラスチック製品で、精密機器・部品等に組込み使用され
る部月は、コミ・打抜きカス・パリ等を付着させていて
、組付けの際に、これらを機器内に混入させると、その
後、機器、部品に支障を来たすおそれがあるので、これ
らの不純物の混入があってはならないっ従来、上述不純
物の混入を防止するため、製品の全数検査を行い、不良
品を除外する方法を採っていた(良好な検査装置が開発
されていないため)が、目視による不良品の除去作業は
能率が上らず過大な労力と人件費が必要であった。Plastic washers for conventional precision equipment (electronic equipment including semiconductors, optical equipment such as photographic film and cameras),
For example (or as an example) ring-shaped plastic products such as rings for welding disc films, etc., which are punched out from plastic sheets or molded by injection molding, etc., and which are used as part of precision equipment and parts. If these impurities are mixed into the equipment during assembly, it may cause problems with the equipment and parts. In the past, in order to prevent the above-mentioned impurities from being mixed in, a method was adopted in which all products were inspected and defective products were excluded (because good inspection equipment had not been developed). The removal work was inefficient and required excessive labor and labor costs.
また、フィルムの打抜き成形の場合は、打抜き型が新し
いうちは打抜きカス・パリ等が少fx <良品が製造で
きることもあるため、型が磨耗しr(い期間内で打抜き
型を新品と交換し、不良品を製造し11い方法を採って
いたが、これだと打抜き型を多数用意しなければTIら
ず設備費がかさみ、また型の寿命が短かいため、研磨を
頻繁に施さねばならないので、研磨に要する時間、費用
も無視できない。In addition, in the case of punching and forming films, while the punching die is new, there are few punching scum, particles, etc. (fx<fx<< Because it is possible to produce a good product, the die should be replaced with a new one within a period of time when the die is worn out.) However, this method required a large number of punching dies to be prepared, resulting in no TI and high equipment costs, and the dies had a short lifespan, requiring frequent polishing. Therefore, the time and cost required for polishing cannot be ignored.
目 的
そこで本発明は、上述、従来の技術的問題点を解決すべ
く、リング状プラスチック製品のパリ取り加工を一度に
多数個、短時間のうちに処理できる装置を開発し、以て
製品の不良率を低下させ、かつ打抜き型に要する費用を
大巾に削減し得る技術を提供することを目的とする。Purpose In order to solve the above-mentioned conventional technical problems, the present invention has developed an apparatus that can deburr a large number of ring-shaped plastic products at once in a short period of time, thereby improving the quality of the products. The purpose of the present invention is to provide a technology that can reduce the defective rate and significantly reduce the cost required for punching dies.
構 成
本発明は、
(1)両端を軸受された回転軸の周面に研磨材層を施し
た、リン−、グ状プラスチック製品の内径よりも若干率
さい外径を備えた内周研磨治具と、前記回転軸に平行な
平面を有する研磨材層を備え、前記研磨材平面を回転軸
に対し平行状態を保持したまま近接・離隔するよう揺動
させる板状の外周研磨治具とよりなり、内周研磨治具に
一度に多数個のリング状プラスチック製品を重ねて嵌込
み、内周研磨治具を回転させながら製品外周に前記外周
研磨治具を接・落させることにより、リング状プラスチ
ック製品のパリを除去することを特徴とする装置。Structure The present invention provides: (1) an inner polishing jig having an outer diameter slightly larger than the inner diameter of a ring-shaped plastic product, which has an abrasive layer applied to the circumferential surface of a rotating shaft bearing both ends; and a plate-shaped outer peripheral polishing jig comprising an abrasive layer having a plane parallel to the rotation axis, and swinging the abrasive plane toward and away from the rotation axis while maintaining the plane parallel to the rotation axis. , by stacking and fitting a large number of ring-shaped plastic products into an inner-periphery polishing jig, and by touching and dropping the outer-periphery polishing jig to the product's outer periphery while rotating the inner-periphery polishing jig, the ring-shaped plastic products are A device characterized by removing paris from a product.
(2)外周研磨治具の平行移動は案内部材とクランク・
ピストン機構とよりなる上記第(1)項記載のリング状
プラスチック製品のパリ取り装置。(2) Parallel movement of the outer polishing jig is done by using the guide member and the crank.
The deburring device for a ring-shaped plastic product according to item (1) above, which comprises a piston mechanism.
にかかり、以下、添付図面に沿って本発明の詳細な説明
する。The present invention will now be described in detail with reference to the accompanying drawings.
実施例 1
第1図は、本発明装置の加工対象であるリング状プラス
チック製品1の平面図で、第2図は、その直径方向に切
断して示した拡大断面図、そのうちの第2(a)図は加
工済製品、第2(b)および(C)図は、フィルムから
打抜いたままの製品であって、その内、外周には打抜き
加工の除土じたパリが残されている。上記、リング状プ
ラスチック製品は、必ずしもワッシャ、パツキンの類に
限らないが、−例として、材質はポリスチレン系樹脂で
寸法は外径50謳、内径40晒、肉厚1叫の程度のもの
もある。また、別にポリエチレン、ポリプロピレン、ポ
リ塩化ビニール等の材質のものも、しばしば使用されて
いる。Example 1 FIG. 1 is a plan view of a ring-shaped plastic product 1 to be processed by the apparatus of the present invention, and FIG. ) The figure shows the processed product, and the figures 2 (b) and (C) show the product as it has been punched out from the film, with the dirt removed from the punching process still remaining on the outer periphery. . The above-mentioned ring-shaped plastic products are not necessarily limited to washers and gaskets, but for example, the material is polystyrene resin and the dimensions are about 50 mm in outer diameter, 40 mm in inner diameter, and 1 mm in wall thickness. . In addition, materials such as polyethylene, polypropylene, and polyvinyl chloride are also often used.
本発明装置は、第2(b)および(c1図示のリング状
製品の内外周縁に生じたパリを能率的に除去することを
目的として開発されたもので、第3図は、その平面図、
第4図は、一部を切断して示した正面図である。同図中
、1は、リング状プラスチック製品を横方向に重ね合わ
せ、回転軸4に挿嵌した状態を示したもの、4は、前述
回転軸で、その両端を台10に立設した軸受機構6によ
り軸支される一方、その中間部には前記リング状製品1
を保持するための一対のフランジ515′およびその片
側にプーリ1を設けている。前記、構造のうち、回転′
軸4は軸受6に対し着脱自在であり、また、フランジ5
の一方5′は回転軸4に対し、たとえば、螺合によって
着脱自在に係合するように設けられ、これによって、前
記リング状製品1の多数枚を回転軸4のフランジ5,5
′の間に挿着および離脱させることができるようにしで
ある。フランジ5゜5′間の回転軸4は第5図以下に示
すように、その外周にリング状製品1の内径の研磨材層
11を同心円的に貼着し、その外径aφは、リング状製
品1の内径bφよりも若干/J’lさめにする。たとえ
ば回転軸径25閣φの外周に対し厚さ5諭のナイロンた
わしく住友3M製)を均等に、かつ軸方向に約500閣
程度貼付ける。The device of the present invention was developed for the purpose of efficiently removing debris generated on the inner and outer periphery of the ring-shaped products shown in Figures 2(b) and (c1), and Figure 3 is a plan view thereof.
FIG. 4 is a partially cutaway front view. In the figure, 1 shows a state in which ring-shaped plastic products are stacked horizontally and inserted into a rotating shaft 4, and 4 is the aforementioned rotating shaft, and a bearing mechanism with both ends of the rotating shaft erected on a stand 10. 6, while the ring-shaped product 1 is mounted in the middle part of the ring-shaped product 1.
A pair of flanges 515' for holding the flange 515' and a pulley 1 are provided on one side of the flanges 515'. Among the above structures, rotation'
The shaft 4 is removably attached to the bearing 6, and the flange 5
One side 5' is provided so as to be removably engaged with the rotating shaft 4, for example, by screwing, so that a large number of the ring-shaped products 1 can be attached to the flanges 5, 5 of the rotating shaft 4.
'' so that it can be inserted and removed between the two. As shown in FIG. 5 and below, the rotating shaft 4 between the flanges 5° and 5' has an abrasive layer 11 of the inner diameter of the ring-shaped product 1 concentrically pasted on its outer periphery, and its outer diameter aφ is The inner diameter bφ of product 1 should be slightly smaller by /J'l. For example, approximately 500 pieces of nylon (manufactured by Sumitomo 3M) with a thickness of 5 pieces is evenly pasted on the outer periphery of a rotating shaft with a diameter of 25 pieces φ in the axial direction.
再び、第3図に戻って、9は台10に設置したモータ、
8は、その出力軸に固着したプーリであり、プーリ7.
8の間はベルト掛けによって動力伝達がなされる。上記
、モータ9は、どんrxタイプのものであってもよいが
、直流100Vで駆動され、スイッチにより正、逆回転
し、またスライダックを用いて回転速度を可変にするこ
とができるものが良い。モータ9の回転力はプーリ8か
らベルトを伝ってブー・す7に、さらに回転軸4に適当
rx速度で伝達される。Returning to FIG. 3 again, 9 is the motor installed on the stand 10,
8 is a pulley fixed to the output shaft, and pulley 7.
During the period 8, power is transmitted by a belt. The motor 9 may be of the RX type, but it is preferable that it be driven by 100 V DC, rotate forward or reverse by a switch, and be able to vary the rotational speed by using a slider. The rotational force of the motor 9 is transmitted from the pulley 8 through the belt to the booth 7 and further to the rotating shaft 4 at an appropriate rx speed.
第6図は、本発明装置稼動時における回転軸4に対する
直角断面を示すものであり、12は表面が回転軸4に平
行に設けられたリング状製品1の外周の研磨材層、13
は、その押え板で、研磨材層12を支持し、同表面を回
転軸4に対し近接または離隔できるように設けられる。FIG. 6 shows a cross section perpendicular to the rotating shaft 4 when the apparatus of the present invention is in operation, and 12 is an abrasive layer on the outer periphery of the ring-shaped product 1 whose surface is parallel to the rotating shaft 4;
is a holding plate that supports the abrasive layer 12 and is provided so that its surface can be brought close to or separated from the rotating shaft 4.
それには、たとえば押え板13の両側端に対称的に揺動
軸を突設し、これを台10に設けた軸受に支承させ、手
動によって押え板13に圧力を及ぼすようにしてもよい
。To do this, for example, swing shafts may be protruded symmetrically from both ends of the holding plate 13, supported by bearings provided on the stand 10, and pressure may be applied to the holding plate 13 manually.
T(お、上述研磨材層12は厚さ5覇のナイロンたわし
く住友3M製)で5QX500+n+nの寸法を有して
いる。T (the above-mentioned abrasive layer 12 is made of nylon with a thickness of 5 cm and manufactured by Sumitomo 3M) and has dimensions of 5QX500+n+n.
上記装置において、打抜き後のリング状プラスチック製
品1を約500枚を回転軸4の一方端からフランジ5に
当接するよう内径研磨材層11部分に挿通して積重ねた
後、その端部な着脱可能なフランジ5′を螺合すること
により止めミこれを軸受機構6,6に軸架し、モータ9
により適当回転数、たとえば500 r、p、mで回す
。勿論、回転軸4の軸架のときにブー97,8間には、
しかるべきベルトを掛は渡しておくものとする。In the above device, approximately 500 ring-shaped plastic products 1 after being punched are inserted from one end of the rotating shaft 4 into the inner diameter abrasive layer 11 so as to come into contact with the flange 5, and then the ends thereof can be attached and detached. By screwing together the flange 5', this is mounted on the bearing mechanisms 6, 6, and the motor 9 is mounted.
Rotate at an appropriate speed, for example, 500 r, p, m. Of course, when mounting the rotating shaft 4, there is a gap between the boots 97 and 8.
Appropriate belts shall be handed over to the hanger.
回転軸4に挿通したリング状製品1は、研磨材層11と
製品内周面との摩擦抵抗によって共回りするが、このと
き、第6図示の外径研磨材層12を、背後から押圧して
緩かに製品外周面に当てると、その圧力の加減によって
リング1の内周面および外周面が適宜研磨できる。一般
的にいって、外圧が大きな場合は製品1は回転を停止し
回転軸の研磨材層11によって、その内−面が研磨され
、圧力が小さいときには製品1は回転し、外周が研磨さ
れる傾向にある。したがって、押え板12に対する圧力
(手加減)に強弱をつけることにより、製品1は内周面
および外周面をムラ無く研磨することができ、パリ等の
不純物が除去・切断さ」する。The ring-shaped product 1 inserted into the rotating shaft 4 rotates together due to the frictional resistance between the abrasive layer 11 and the inner peripheral surface of the product. At this time, the outer diameter abrasive layer 12 shown in FIG. 6 is pressed from behind. When the ring 1 is gently applied to the outer circumferential surface of the product, the inner circumferential surface and outer circumferential surface of the ring 1 can be appropriately polished by adjusting the pressure. Generally speaking, when the external pressure is large, the product 1 stops rotating and its inner surface is polished by the abrasive layer 11 on the rotating shaft, and when the pressure is small, the product 1 rotates and its outer periphery is polished. There is a tendency. Therefore, by controlling the pressure (manual control) applied to the presser plate 12, the inner and outer peripheral surfaces of the product 1 can be polished evenly, and impurities such as paris can be removed and cut.
上記のうち、研磨材11 、12の利質としては、上記
のほか紙やすり、金属やすり、ナイロンまたは金属等の
ブラシ等を施してもよい。Among the above, the abrasive materials 11 and 12 may be treated with sandpaper, metal sandpaper, brushes made of nylon, metal, etc. in addition to the above.
かくして、幾重にも重ねたリング状製品1の長手方向全
体に亘り、研磨加工を正回転で1分、逆回転で1分、ま
んべんなく施した後、取外して分解し、当該個所を顕微
鏡検査をしたところ、パリは全く認められr、Hかった
3゜
実施例2
第7図は、研磨材層12を手加減でリング状製品外周に
押付ける代りにこれを自動化した機構を示している。図
示以外の部分は実施例1において説明したものと同一で
あるので省1略しである。図中、14は台10に設けた
固定スリーブで、摺動杆15を回転軸4に対して[σ角
方向に支承し、かつ同方向に摺動できるようにしている
。摺動杆15の一端、回転軸寄り(二は同杆に直角に前
述押え板13および外周研磨材層12が取付けられ、他
端側にはクランク・ピストン機構16が軸着しである。After polishing was applied evenly over the entire longitudinal direction of the ring-shaped product 1 stacked in multiple layers for 1 minute in forward rotation and 1 minute in reverse rotation, it was removed and disassembled, and the relevant area was examined using a microscope. However, no cracks were observed and the results were 3°.Example 2 FIG. 7 shows a mechanism that automated this process instead of manually pressing the abrasive layer 12 onto the outer periphery of the ring-shaped product. Portions other than those shown in the drawings are the same as those described in the first embodiment, so they are omitted. In the figure, reference numeral 14 denotes a fixed sleeve provided on the stand 10, which supports the sliding rod 15 in the σ angle direction with respect to the rotating shaft 4, and allows it to slide in the same direction. One end of the sliding rod 15 near the rotating shaft (the second end is attached with the aforementioned presser plate 13 and the outer peripheral abrasive layer 12 at right angles to the same rod, and the other end is attached with a crank/piston mechanism 16.
なお、摺動4!F15およびクランク・ピストン機構1
6は、一つしてないが摺動杆15の長さは、たとえば螺
杆によって微調節可能であることを要する。もしくは押
え板13と摺動杆1(5との間に適宜強さの緩衝ばねを
施すことも有効である。兎も角、研磨材層12の表面の
行程端の位置は調節可能でなければ多種型式のリング状
製品に対する適応性が狭いものとなる。In addition, sliding 4! F15 and crank/piston mechanism 1
6 requires that the length of the sliding rod 15 can be finely adjusted by, for example, a screw rod, although this is not the case. Alternatively, it is also effective to provide a buffer spring of appropriate strength between the presser plate 13 and the sliding rod 1 (5). The adaptability to various types of ring-shaped products is limited.
さて、クランク・ピストン機構が回動すると摺動杆15
の回転軸方向・\の往復動がはじまるから、その作用を
実施例1の場合の手動操作に代替することができる。た
だし、人手によるときには研磨加工を目視しながらそれ
に対するフィードバック操作を自然に行うので好結果を
得ることが多いが、純機械的加工だと、それが望めない
から、上述した調節手段を最大限に利用して、予め加工
に適した条件を設定しておくことを要する。この場合も
、人手を省く事ができる外は、実施例1のものと作用、
効果において差異がない。Now, when the crank piston mechanism rotates, the sliding rod 15
Since the reciprocating movement in the direction of the rotation axis and \ starts, the operation can be replaced by manual operation in the case of the first embodiment. However, when manual polishing is performed, good results are often obtained as feedback operations are performed naturally while visually observing the polishing process, but this cannot be achieved with purely mechanical polishing, so the adjustment means described above should be maximized. It is necessary to take advantage of this and set conditions suitable for processing in advance. In this case as well, the operation is the same as in Example 1, except that manpower can be saved.
There is no difference in effectiveness.
効 果
IきII−画才ろ7’r荘Nル染イ賠すス菅シf−)ハ
ブ 盲1ング状プラスチック製品のパリを、大量にかつ
短時間(実質上数分間毎に)に除去することができ、大
巾に人手を省くことが可能であるばかりでなく、半自動
化加工の手段も開け、それに伴なって製品の品質向上、
不良率の低下、打抜き型の長寿命化などコストダウンの
ためにも顕著な作用、効果が期待できるものとffつだ
。Effect Iki II - Art talent 7'r 7'r dyeing sukanshif-) Hub Blind 1 Removes debris from ring-shaped plastic products in large quantities and in a short period of time (virtually every few minutes) This not only saves a large amount of manpower, but also opens the door to semi-automated processing, which improves product quality and improves product quality.
It can be expected to have significant effects and effects in reducing costs, such as lowering the defective rate and extending the life of the punching die.
第1図は、リング状プラスチック製品の平面図、第2図
は、第1図示II −II mに沿う拡大断面図で、そ
の(aJ図は完成品、その(b)およびfc)図は打抜
きしたままの製品、第3図は、本発明の一実施例装置の
平面図、第4図はその一部を切断して示す正面図、第5
図および第6図は、第4図示V−V線に沿う回転軸付近
の断面図、第7図は本発明の別の実施例の回転軸付近の
断面図を示す。
1・・・リング状プラスチック製品 3・・・パリ4・
・・回転軸 5・・・フランジ
11.12・・・研磨材層 14・・・押え板代理人
弁理士 今 誠
第1図
Φ
第3図
第4図
第5図。
第6図
第7図Figure 1 is a plan view of a ring-shaped plastic product, Figure 2 is an enlarged cross-sectional view taken along line II-IIm shown in Figure 1, and the figures (aJ is the finished product, and (b) and fc) are punched parts. 3 is a plan view of an embodiment of the device of the present invention, FIG. 4 is a partially cutaway front view of the device, and FIG.
6 and 6 are cross-sectional views of the vicinity of the rotating shaft along the line V-V shown in FIG. 4, and FIG. 7 is a cross-sectional view of the vicinity of the rotating shaft of another embodiment of the present invention. 1... Ring-shaped plastic product 3... Paris 4.
... Rotating shaft 5 ... Flange 11.12 ... Abrasive layer 14 ... Holding plate agent
Patent Attorney Makoto Kon Figure 1Φ Figure 3 Figure 4 Figure 5. Figure 6 Figure 7
Claims (2)
た、リング状プラスチック製品の内径よりも若干小さい
外径を備えた内周研磨治具と、前記回転軸に平行な平面
を有する研磨材層を備え、前記研磨材平面を回転軸に対
し平行状態を保持したまま近接・離隔するよう揺動させ
る板状の外周研磨冶具とよりなり、内周研磨治具に一度
に多数個のリング状プラスチック製品を重ねて嵌込み、
内周研磨治具を回転させながら製品外周に前記外周研磨
冶具を接・離させることにより、リング状プラスチック
製品のパリを除去することを特徴とする装置。(1) An inner polishing jig with an outer diameter slightly smaller than the inner diameter of a ring-shaped plastic product, in which an abrasive layer is applied to the circumferential surface of a rotating shaft with bearings at both ends, and a plane parallel to the rotating shaft. It consists of a plate-shaped outer polishing jig, which includes an abrasive layer having an abrasive material layer, and swings the abrasive material plane toward and away from the rotational axis while keeping it parallel to the rotation axis; The ring-shaped plastic products are stacked and fitted together.
An apparatus for removing debris from a ring-shaped plastic product by bringing the outer periphery polishing jig into and out of contact with the outer periphery of the product while rotating the inner periphery polishing jig.
ク・ピストン機構とよりなる特許請求の範囲第1項記載
のリング状プラスチック製品のパリ取り装置。(2) A deburring device for a ring-shaped plastic product according to claim 1, wherein the parallel movement of the polishing jig is performed by a guide part and a crank-piston mechanism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23877883A JPS60131155A (en) | 1983-12-20 | 1983-12-20 | Burr removing apparatus for ring-shaped plastic product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23877883A JPS60131155A (en) | 1983-12-20 | 1983-12-20 | Burr removing apparatus for ring-shaped plastic product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60131155A true JPS60131155A (en) | 1985-07-12 |
Family
ID=17035133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23877883A Pending JPS60131155A (en) | 1983-12-20 | 1983-12-20 | Burr removing apparatus for ring-shaped plastic product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60131155A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102328254A (en) * | 2011-07-19 | 2012-01-25 | 大连液压件有限公司 | Multipurpose deburring machine for inner bore and end face |
CN102848284A (en) * | 2011-06-27 | 2013-01-02 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
CN110815675A (en) * | 2019-11-15 | 2020-02-21 | 刘西 | Finish machining treatment machine for production and manufacturing of glass fiber reinforced plastic grating plate |
CN110978349A (en) * | 2019-11-21 | 2020-04-10 | 南通大学 | Automatic trimmer of many specifications O type sealing washer |
CN112157852A (en) * | 2020-09-24 | 2021-01-01 | 曹佳伟 | Manual cutting and cutting device for bowl-shaped injection molding product |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912238A (en) * | 1972-05-16 | 1974-02-02 |
-
1983
- 1983-12-20 JP JP23877883A patent/JPS60131155A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912238A (en) * | 1972-05-16 | 1974-02-02 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102848284A (en) * | 2011-06-27 | 2013-01-02 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
CN102848284B (en) * | 2011-06-27 | 2015-07-08 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
CN102328254A (en) * | 2011-07-19 | 2012-01-25 | 大连液压件有限公司 | Multipurpose deburring machine for inner bore and end face |
CN110815675A (en) * | 2019-11-15 | 2020-02-21 | 刘西 | Finish machining treatment machine for production and manufacturing of glass fiber reinforced plastic grating plate |
CN110978349A (en) * | 2019-11-21 | 2020-04-10 | 南通大学 | Automatic trimmer of many specifications O type sealing washer |
CN112157852A (en) * | 2020-09-24 | 2021-01-01 | 曹佳伟 | Manual cutting and cutting device for bowl-shaped injection molding product |
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