KR100434969B1 - Double wall wrinkles pipe cutting system of series injection molding process - Google Patents
Double wall wrinkles pipe cutting system of series injection molding process Download PDFInfo
- Publication number
- KR100434969B1 KR100434969B1 KR10-2001-0023542A KR20010023542A KR100434969B1 KR 100434969 B1 KR100434969 B1 KR 100434969B1 KR 20010023542 A KR20010023542 A KR 20010023542A KR 100434969 B1 KR100434969 B1 KR 100434969B1
- Authority
- KR
- South Korea
- Prior art keywords
- wall corrugated
- corrugated pipe
- double
- double wall
- extruded
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 35
- 238000001746 injection moulding Methods 0.000 title 1
- 230000037303 wrinkles Effects 0.000 title 1
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
Abstract
본 발명은 연속압출 성형과정의 이중벽 주름관체 절단시스템에 관한 것으로, 더욱 상세하게는 압출기에 의하여 연속 압출성형되는 이중벽 주름관체의 압출길이을 감지하고 일정 길이 이상 압출되었을 때 이를 삽지하여서 압출되는 이중벽 주름관체와 동일 속도로 이송하면서 신속하고 정밀하게 절단할 수 있도록 함을 목적으로 한 것이다.The present invention relates to a double wall corrugated pipe cutting system of a continuous extrusion molding process, and more particularly, a double wall corrugated pipe extruded by detecting an extrusion length of a double wall corrugated pipe continuously extruded by an extruder and inserting the same when extruded over a predetermined length. It aims to be able to cut quickly and precisely while feeding at the same speed as.
고정 몸체(10)의 전단 하부에 결착되어 연속 압출성형되는 이중벽 주름관체(100)의 압출길이를 치접 감지하는 압출길이 감지장치(20)와, 상기 고정 몸체(10)에 이중벽 주름관체(100)의 압출방향으로 슬라이딩 이동 가능하게 결합되며 복귀액츄에이터(31)에 의하여 복귀되게 구성된 가동 몸체(30)와, 압출성형되는 이중벽 주름관체(100)를 양측에서 삽지할 수 있게 상기 가동 몸체(30)에 구비되는 삽지장치(40)와, 상기 삽지장치(40)에 의하여 삽지된 이중벽 주름관체(100)를 절단할 수 있게 가동 몸체(30)에 구비되는 절단장치(50)와, 상기 각 장치를 제어하는 컨트롤러로 구성된 것이다.Extrusion length sensing device 20 for detecting the extrusion length of the double-wall corrugated pipe 100 is continuously extruded by being coupled to the lower end of the fixed body 10, and the double-wall corrugated pipe 100 to the fixed body (10) The movable body 30 coupled to the sliding direction of the extrusion direction and configured to be returned by the return actuator 31 and the double wall corrugated pipe body 100 to be extruded from the both sides can be inserted into the movable body 30. And a cutting device 50 provided in the movable body 30 to cut the inserting device 40, the double wall corrugated pipe 100 inserted by the inserting device 40, and the respective devices. It consists of a controller.
Description
본 발명은 연속압출 성형과정의 이중벽 주름관체 절단시스템에 관한 것으로, 더욱 상세하게는 압출기에 의하여 연속 압출성형되는 이중벽 주름관체의 압출길이을 감지하고 일정 길이 이상 압출되었을 때 이를 삽지하여서 압출되는 이중벽 주름관체와 동일 속도로 이송하면서 신속하고 정밀하게 절단할 수 있도록 함을 목적으로 한 것이다.The present invention relates to a double wall corrugated pipe cutting system of a continuous extrusion molding process, and more particularly, a double wall corrugated pipe extruded by detecting an extrusion length of a double wall corrugated pipe continuously extruded by an extruder and inserting the same when extruded over a predetermined length. It aims to be able to cut quickly and precisely while feeding at the same speed as.
일반적으로, 주름이 비 나선형으로 형성된 이중벽 주름관체는 내관압출기와 외관압출기가 하나의 구조로 이루어지 압출기를 이용하여 내관 압출성형 후 그 외면에 연속하여 주름진 외관을 압출성형하는 것으로, 그 압출성형이 연속적으로 이루어지므로 압출성형된 관체를 운반 및 보관하기 위하여는 일정 길이로 절단하여야 한다.In general, the double-wall corrugated pipe formed in a non-helical form of the pleat is an extruder made of an inner tube extruder and an outer extruder having a single structure. Since it is continuous, the extruded tube should be cut to a certain length in order to transport and store it.
이에, 종래에는 연속하여 압출성형되는 이중벽 주름관체의 골 수를 통상의 리미트스위치로 카운트한 후 히팅선을 이용하여 절단하거나, 대형 톱날을 이용하여 절단하였다.Thus, in the related art, the bone marrow of the double-wall corrugated tube continuously extruded was counted using a conventional limit switch, and then cut using a heating line, or cut using a large saw blade.
그러나, 상기한 바와 같이 히팅선을 이용한 절단은 절단과정에 유독가스가 발생하여 작업환경을 저해하며, 대형 톱날의 경우에는 그 톱날의 크기가 관의 직경보다 두 배 이상 커야 하므로 많은 작업공간을 필요로 하며, 절단과정에 있어 톱날이 외부로 노출되게 되어 있어 작업상에도 용이하지 않은 문제점이 있었다.However, as described above, cutting using heating wires causes toxic gas to be generated during the cutting process, which hinders the working environment. In the cutting process, the saw blade is exposed to the outside, there was a problem not easy to work.
그 밖에도 다양한 절단 시스템이 제시되었으나 연속 압출성형되는 이중벽 주름관체의 절단에는 그 작업이 원활하지 못한 문제점이 있었다.In addition, various cutting systems have been proposed, but there is a problem in that the work is not smooth in the cutting of the double-wall corrugated tube continuously extruded.
이에, 본 발명은 상술한 문제점을 해결하기 위하여 창출한 것으로, 연속 압출성형되는 이중벽 주름관체를 원활하고 용이하게 일정 길이로 자동 절단할 수 있도록 한 것으로, 이중벽 주름관체와 치합되는 감지기어에 의하여 압출성형되는 이중벽 주름관체의 압출길이를 감지하고, 압출성형되는 이중벽 주름관체를 집게형의 그리퍼로 삽지하며, 서로 대칭되게 구비되며 반원상의 궤적으로 회동되는 절단톱날에 의하여 이중벽 주름관체를 신속하고 정확하게 절단할 수 있도록 한 것이다.Accordingly, the present invention has been made to solve the above-mentioned problems, it is to enable the automatic cutting of the double wall corrugated pipe to be continuously extruded smoothly and easily to a predetermined length, the extrusion by the sensor gear meshed with the double wall corrugated pipe. Detects the extruded length of double wall corrugated pipe to be molded, inserts double wall corrugated pipe to be extruded with gripper of gripper type, and cuts double wall corrugated pipe quickly and accurately by cutting saw blades which are provided symmetrically with each other and rotated in a semicircular trajectory It is to be done.
도 1 은 본 발명에 따른 일 실시예를 보인 주요 사시도.1 is a main perspective view showing an embodiment according to the present invention.
도 2 는 본 발명에 따른 일 실시예를 보인 주요부 사시도.Figure 2 is a perspective view of the main part showing an embodiment according to the present invention.
도 3 은 본 발명에 따른 일 실시예를 보인 주요 구성 측면도.Figure 3 is a side view of the main configuration showing an embodiment according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 고정 몸체10: fixed body
20 : 압출길이 감지장치20: Extrusion length detector
21 : 감지기어 22 : 브래킷21: detector word 22: bracket
30 : 가동 몸체 31 : 복귀액츄에이터30: movable body 31: return actuator
40 : 삽지장치40: inserting device
50 : 절단장치50: cutting device
51 : 절단톱날 52 : 이절링크아암51: cutting saw blade 52: two-link link arm
53 : 아암액츄에이터 54 : 회동액츄에이터53: Arm Actuator 54: Rotating Actuator
60 : 배출장치60: discharge device
61 : 배출기어 62 : 배출모터61: discharge gear 62: discharge motor
100 : 이중벽 주름관체100: double wall corrugated tube
이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.
본 발명은 연속 압출성형되는 이중벽 주름 관체를 일정 길이로 용이하고 신속하게 자동절단할 수 있도록 한 것으로, 고정 몸체(10)의 전단 하부에 결착되어 연속 압출성형되는 이중벽 주름관체(100)의 압출길이를 치접 감지하는 압출길이 감지장치(20)와, 상기 고정 몸체(10)에 이중벽 주름관체(100)의 압출방향으로 슬라이딩 이동 가능하게 결합되며 복귀액츄에이터(31)에 의하여 복귀되게 구성된 가동 몸체(30)와, 압출성형되는 이중벽 주름관체(100)를 양측에서 삽지할 수 있게 상기 가동 몸체(30)에 구비되는 삽지장치(40)와, 상기 삽지장치(40)에 의하여 삽지된 이중벽 주름관체(100)를 절단할 수 있게 가동 몸체(30)에 구비되는 절단장치(50)와, 상기 각 장치를 제어하는 컨트롤러로 구성된 것이다.The present invention is to enable easy and quick automatic cutting of the double wall corrugated pipe to be continuously extruded to a predetermined length, the extrusion length of the double wall corrugated pipe 100 is continuously extruded by binding to the lower end of the fixed body (10) Extruded length sensing device 20 to detect the contact with the movable body 30 is configured to be slidably movable in the extrusion direction of the double-wall corrugated pipe 100 to the fixed body 10 and to be returned by the return actuator 31. ), An inserting device 40 provided on the movable body 30 to insert the extruded double wall corrugated pipe 100 from both sides, and the double wall corrugated pipe 100 inserted by the inserting device 40. It is composed of a cutting device 50 provided in the movable body 30 so as to cut), and a controller for controlling each of the devices.
여기서, 상기 압출길이 감지장치(20)는 이중벽 주름관체(100)의 피치와 동일 원주피치를 이루며 고정 몸체(10)에 브래킷(22)을 매개로 고정설치되는 감지기어(21)와, 상기 감지기어(21)의 측벽 원주상에 기어의 치(齒) 갯수와 동일 갯수로 구비되는 감지자성체(23)와, 상기 감지자성체(23)가 삽설된 측벽에 감지자성체(23)와 동일원주상의 위치에 결착되는 홀센서(24)로 구성한 것이다.Here, the extruded length detecting device 20 is the sensor gear 21 is fixed to the fixed body 10 via the bracket 22 to form the same circumferential pitch as the pitch of the double-wall corrugated pipe 100, and the detection The sensing magnetic body 23 is provided on the side wall circumference of the gear 21 in the same number as the number of teeth of the gear 21 and the same circumference as the sensing magnetic body 23 on the side wall where the sensing magnetic body 23 is inserted. It consists of a Hall sensor 24 that is bound to the position.
그리고, 상기 삽지장치(40)는 이중벽 주름관체(100)를 양측에서 삽지할 수 있게 가동 몸체(30)의 양측에 집게형의 그립퍼로 구성한 것으로, 상기 그립퍼는 가동 몸체(30)에 고정설치되는 그립지주(41)와, 상기 그립지주(41)의 단부에 회동 가능하게 결합되는 상단그립(42a) 및 하단그립(42b)과, 상기 상단그립(42a)과 하단그립(42b)을 그립지주(41)의 돌출 단부를 지점으로 하여 집게형으로 회동시킬 수 있게 상단그립(42a)과 하단그립(42b)에 각기 독립적으로 구비되는 그립액츄에이터(43)로 구성한 것이다.And, the inserting device 40 is composed of a gripper of the grip type on both sides of the movable body 30 to insert the double wall corrugated pipe 100 from both sides, the gripper is fixed to the movable body 30 A grip holder 41, an upper grip 42a and a lower grip 42b rotatably coupled to an end of the grip holder 41, and the upper grip 42a and the lower grip 42b are grip holders ( 41 is configured as a grip actuator 43, which is provided on the upper grip 42a and the lower grip 42b independently so as to be able to rotate in the form of a forceps with the protruding end portion 41).
또한, 상기 절단장치(50)는 절단톱날(51)의 궤적이 이중벽 주름관체(100)의 직경과 동일직경의 반원상 궤적을 이루는 두 개의 절단기로 구성한 것으로, 상기 절단기는 가동 몸체(30)에 이절링크아암(52)을 매개로 고정설치되며 절단모터에 의하여 회동되는 절단톱날(51)과, 상기 절단톱날(51)이 결합되어 있는 이절링크아암(52)을 전개시키는 아암액츄에이터(53)와, 상기 아암액츄에이터(53)를 회동시키는 회동액츄에이터(54)로 구성한 것이다.In addition, the cutting device 50 is composed of two cutters in which the trajectory of the cutting saw blade 51 forms a semi-circular trajectory of the same diameter as the diameter of the double-wall corrugated pipe 100, the cutter to the movable body 30 An arm actuator 53 which is fixedly installed through the cutting-edge link arm 52 and is deployed by the cutting saw blade 51 rotated by the cutting motor, and the cutting-edge link arm 52 to which the cutting saw blade 51 is coupled; And the rotating actuator 54 for rotating the arm actuator 53.
한편, 본 발명의 실시에 있어서, 상기 절단장치(50)에 의하여 절단된 이중벽 주름관체(100)를 원활하게 배출시킬 수 있도록 고정 몸체(10)의 후단에 고정 설치되는 배출장치(60)를 구비하여 실시할 수 있는 것으로, 상기 배출장치(60)는 이중벽 주름관체(100)와 치합되는 배출기어(61)와, 컨트롤러에 의하여 제어되어 상기 배출기어(61)를 회동시키는 배출모터(62)로 구성한 것이다.On the other hand, in the practice of the present invention, it is provided with a discharging device 60 is fixed to the rear end of the fixed body 10 so as to smoothly discharge the double wall corrugated pipe 100 cut by the cutting device (50). The discharge device 60 is a discharge gear 61 meshed with the double-wall corrugated pipe 100 and a discharge motor 62 controlled by a controller to rotate the discharge gear 61. It is made up.
이하, 본 발명에 의한 이중벽 주름관체의 절단과정을 설명하면 다음과 같다.Hereinafter, the cutting process of the double wall corrugated tube according to the present invention will be described.
상기한 바와 같이 이중벽 주름관체(100)와 치합되어 압출길이를 감지하는 압출길이 감지장치(20)와, 고정 몸체(10)에 슬라이딩 이동 가능하게 결합되어 압출기에 의하여 압출되는 이중벽 주름관체(100)를 양측에서 삽지하는 삽지장치(40)와, 상기 삽지장치(40)에 의하여 삽지된 이중벽 주름관체(100)를 반원상의 궤적으로 회동되며 절단하는 절단장치(50)로 이루어진 본 발명은 압출기에서 연속 압출성형되는 이중벽 주름관체(100)와 치합 회동되는 압출길이 감지장치(20)를 통하여 컨트롤로가 상기 이중벽 주름관체(100)의 압출길이를 감지한다.As described above, the extrusion length detecting device 20 engaged with the double wall corrugated pipe 100 to detect the extrusion length, and the double wall corrugated pipe 100 which is slidably coupled to the fixed body 10 to be extruded by the extruder 100. The present invention consists of an inserting device (40) for inserting from both sides, and a cutting device (50) for rotating and cutting the double wall corrugated pipe (100) inserted by the inserting device (40) in a semicircular trajectory. The control path detects the extrusion length of the double wall corrugated pipe 100 through the extrusion length sensing device 20 engaged with the double wall corrugated pipe 100 to be extruded.
상기한 바와 같이 이중벽 주름관체(100)의 압출길이를 감지함에 있어 압출길이가 일정 길이로 압출되게 되면, 가동 몸체(30)의 양측에 각기 구비된 집게 형상의 그립퍼로 이루어진 삽지장치(40)가 압출되는 이중벽 주름관체(100)를 삽지한다.As described above, when the extrusion length is extruded to a predetermined length in detecting the extrusion length of the double-wall corrugated pipe 100, the insertion device 40 made of grippers of each of the tongs is provided on both sides of the movable body 30. The extruded double wall corrugated pipe 100 is inserted.
이상과 같이 삽지장치(40)가 이중벽 주름관체(100)를 삽지하게 되면 고정 몸체(10)에 슬라이딩 이동 가능하게 결합된 가동 몸체(30)가 압출되는 이중벽 주름관체(100)와 함께 슬라이딩 이동되게 됨과 더불어 절단장치(50)의 절단톱날(51)이 아암액츄에이터(53)와 회동액츄에이터(54)에 의하여 반원상의 궤적으로 회동되며 이중벽 주름관체(100)의 골부분을 정확하고 신속하게 절단한다.When the inserting device 40 inserts the double wall corrugated pipe 100 as described above, the movable body 30 coupled to the fixed body 10 to be slidably moved is slidably moved together with the double wall corrugated pipe 100 extruded. In addition, the cutting saw blade 51 of the cutting device 50 is rotated by a semi-circular trajectory by the arm actuator 53 and the rotational actuator 54 to accurately and quickly cut the bone portion of the double wall corrugated tube 100.
그리고, 상기 절단장치(50)에 의한 이중벽 주름관체(100)의 절단이 완료되면 이중벽 주름관체(100)를 삽지하고 있는 삽지장치(40)의 그립퍼가 전개됨과 더불어 고정 몸체(10)에 고정되어 있는 복귀액츄에이터(31)가 작동하여 슬라이딩 이동된 가동 몸체(30)를 원래의 상태로 복귀시키므로 이중벽 주름관체(100)의 절단공정이 완료되는 것이며, 상기한 바와 같은 공정이 반복하여 이루어지며 연속 압출되는 이중벽 주름관체를 일정 길이로 절단하는 것이다.When the cutting of the double wall corrugated pipe 100 by the cutting device 50 is completed, the gripper of the inserting device 40 inserting the double wall corrugated pipe 100 is developed and fixed to the fixed body 10. Since the return actuator 31 is operated to return the sliding body 30 to its original state, the cutting process of the double wall corrugated pipe 100 is completed, and the process as described above is repeated and continuous extrusion is performed. The double wall corrugated tube is to be cut to a certain length.
한편, 고정 몸체(10)의 후단에 이중벽 주름관체(100)와 치합되는 배출장치(60)를 구비하므로서 절단된 이중벽 주름관체(100)를 신속하게 배출시켜 절단되 이중벽 주름관체(100)가 절단장치와 간섭되는 것을 방지할 수 있는 것이다.On the other hand, the rear wall of the fixed body 10 is provided with a discharging device 60 to be engaged with the double wall corrugated pipe 100, so that the cut double wall corrugated pipe 100 is quickly discharged and cut to cut the double wall corrugated pipe 100 The interference with the device can be prevented.
따라서, 본 발명은 이중벽 주름관체의 압출길이를 감지를 치합되는 감지기어에 의하여 이루어지므로 압출길이의 측정이 정확하게 이루어지며, 압출성형되는 이중벽 주름관체의 양측에서 집게형의 그립퍼에 의하여 삽지하므로 그 삽지가 신속하고 정확하게 이루어지고, 이중벽 주름관체의 직경과 동일하게 반원상의 궤적으로 회동되는 두 개의 절단톱날에 의하여 상기 이중벽 주름관체의 절단이 이루어지므로 그 절단이 신속하고 명확하게 이루어지는 매우 유용한 것이다.Therefore, the present invention is made by the sensor gear that is coupled to detect the extrusion length of the double-wall corrugated pipe, so that the measurement of the extrusion length is made accurately, and the insertion is carried out by the gripper of the clamp type on both sides of the double-wall corrugated pipe to be extruded. The cutting of the double-walled corrugated tube is performed quickly and clearly by two cutting saw blades which are rotated in a semicircular trajectory equal to the diameter of the double-walled corrugated tube.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0023542A KR100434969B1 (en) | 2001-04-30 | 2001-04-30 | Double wall wrinkles pipe cutting system of series injection molding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0023542A KR100434969B1 (en) | 2001-04-30 | 2001-04-30 | Double wall wrinkles pipe cutting system of series injection molding process |
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| Publication Number | Publication Date |
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| KR20020083843A KR20020083843A (en) | 2002-11-04 |
| KR100434969B1 true KR100434969B1 (en) | 2004-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889023A (en) * | 1985-10-30 | 1989-12-26 | Lhomme S.A. | Tube truncation apparatus and method |
| US5086677A (en) * | 1988-04-25 | 1992-02-11 | Lhomme S.A. | Tube truncation apparatus and method |
| JPH0929694A (en) * | 1995-07-18 | 1997-02-04 | Fujikura Ltd | Cutting device |
| KR970051179U (en) * | 1996-02-05 | 1997-09-08 | Sleeve molding device of double wall structure resin pipe | |
| KR19990066102A (en) * | 1998-01-21 | 1999-08-16 | 장인배 | Slitter processing method of double wall pipe and its device |
| JPH11291352A (en) * | 1998-04-13 | 1999-10-26 | Japan Steel & Tube Constr Co Ltd | Device for joining thermoplastic resin pipe |
| JP2000127088A (en) * | 1998-10-21 | 2000-05-09 | Ikuta Tekko Kk | Paper tube cutter |
-
2001
- 2001-04-30 KR KR10-2001-0023542A patent/KR100434969B1/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889023A (en) * | 1985-10-30 | 1989-12-26 | Lhomme S.A. | Tube truncation apparatus and method |
| US5086677A (en) * | 1988-04-25 | 1992-02-11 | Lhomme S.A. | Tube truncation apparatus and method |
| JPH0929694A (en) * | 1995-07-18 | 1997-02-04 | Fujikura Ltd | Cutting device |
| KR970051179U (en) * | 1996-02-05 | 1997-09-08 | Sleeve molding device of double wall structure resin pipe | |
| KR19990066102A (en) * | 1998-01-21 | 1999-08-16 | 장인배 | Slitter processing method of double wall pipe and its device |
| JPH11291352A (en) * | 1998-04-13 | 1999-10-26 | Japan Steel & Tube Constr Co Ltd | Device for joining thermoplastic resin pipe |
| JP2000127088A (en) * | 1998-10-21 | 2000-05-09 | Ikuta Tekko Kk | Paper tube cutter |
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|---|---|
| KR20020083843A (en) | 2002-11-04 |
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