KR20040071895A - bending method for plastic corrugated cardboard and be made plastic corrugated by the method - Google Patents

bending method for plastic corrugated cardboard and be made plastic corrugated by the method Download PDF

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Publication number
KR20040071895A
KR20040071895A KR1020030007804A KR20030007804A KR20040071895A KR 20040071895 A KR20040071895 A KR 20040071895A KR 1020030007804 A KR1020030007804 A KR 1020030007804A KR 20030007804 A KR20030007804 A KR 20030007804A KR 20040071895 A KR20040071895 A KR 20040071895A
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South Korea
Prior art keywords
bending
corrugated cardboard
plastic corrugated
bent
punch
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KR1020030007804A
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Korean (ko)
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조연용
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주식회사 대 건
조연용
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Priority to KR1020030007804A priority Critical patent/KR20040071895A/en
Publication of KR20040071895A publication Critical patent/KR20040071895A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/06—Spray nozzles or spray pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/04—Direct-contact trickle coolers, e.g. cooling towers with cross-current only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: A bending method of a plastic corrugated cardboard and the corrugated cardboard formed by the bending method is provided to freely adjust the bending angle of the plastic corrugated cardboard, to make a bent part bent smoothly, to facilitate manufacture of goods, and to prevent deformation after manufacture. CONSTITUTION: A bending method of a plastic corrugated cardboard(100) comprises a step of indicating bending lines(120) on the top and bottom surfaces of a bending part(110) positioned to a part of the plastic corrugated cardboard; a step of putting the plastic corrugated cardboard between an upper bender(200) and a lower bender(300), to situate the bending lines correspondently to an upper blade(222) of an upper punch(220) arranged to the upper bender and to a lower blade(322) of a lower punch(320) arranged to the lower bender; a step of simultaneously lowering the upper punch of the upper bender heated by a hot wire(224) by an upper cylinder(210) and raising the lower punch heated by a hot wire(324) by a lower cylinder(310), and forming an upper bent groove(400) and a lower bent groove(500) while melting the top and bottom of the bending part by the upper punch, the upper blade, and the lower blade; and a step of cooling the upper and lower bent grooves of a melting state and maintaining the shapes of the upper and lower bent grooves after simultaneously raising the upper punch by the upper cylinder and lowering the lower punch by the lower cylinder and then taking out the plastic corrugated cardboard.

Description

플라스틱 골판지의 절곡방법과 그 방법에 의해 형성된 골판지{bending method for plastic corrugated cardboard and be made plastic corrugated by the method}Bending method for plastic corrugated cardboard and be made plastic corrugated by the method}

본 발명은 플라스틱 골판지의 절곡방법과 그 방법에 의해 형성된 골판지에 관한 것으로, 더욱 상세히는 플라스틱 골판지의 절곡부의 상하부에 절곡홈을 형성함으로서, 플라스틱 골판지의 절곡 각도를 자유자재로 조절할 수 있고, 매끄러운 절곡이 가능하여 미관상 화려한 플라스틱 골판지를 제작할 수 있도록 하는 플라스틱 골판지를 절곡하는 방법과 그 방법에 의해 형성된 골판지에 관한 것이다.The present invention relates to a method of bending plastic corrugated cardboard and to corrugated cardboard formed by the method. More specifically, by forming a bent groove in the upper and lower portions of the bent portion of the plastic corrugated cardboard, the bending angle of the plastic corrugated cardboard can be freely adjusted and smoothly bent. The present invention relates to a method of bending plastic corrugated cardboard so that it is possible to produce aesthetically pleasing plastic corrugated cardboard and a corrugated cardboard formed by the method.

일반적으로 플라스틱 골판지는 종이 골판지보다 내구성, 내마멸성이 우수한 소재로써, 상품 포장용 상자나 그 밖에 생활용품 등에 널리 사용되고 있다.In general, plastic corrugated cardboard is a material that is superior in durability and abrasion resistance than paper corrugated cardboard, and is widely used in product packaging boxes and other household goods.

종래 플라스틱 골판지의 절곡방법은 플라스틱 골판지를 절곡기의 다이부 위에 올려놓고, 실린더를 통해 절곡기의 펀치를 하강시켜 절곡기에 구비된 펀치의 날이 플라스틱 골판지의 절곡부 상면을 압착하면, 플라스틱 골판지의 절곡부가 펀치의 날에 의해 약간 구부러진 형상을 이루었다.In the conventional method of bending plastic corrugated cardboard, the plastic corrugated cardboard is placed on the die portion of the bending machine, the punch of the bending machine is lowered through the cylinder, and the punch blade provided in the bending machine presses the upper surface of the bending portion of the plastic corrugated cardboard. The bent portion formed a shape slightly bent by the blade of the punch.

이상과 같이 종래 플라스틱 골판지의 절곡방법은 절곡기를 통해 플라스틱 골판지의 절곡부를 약간 구부러지게 하는 방법을 사용하기 때문에 상기 플라스틱 골판지로 포장용 상자를 제작할 때, 절곡부와 절곡부 사이에 플라스틱 골판지가 외측으로 볼록하게 휘어짐에 따라 상품으로서 가치가 상실되며, 미관상 화려하지 않다는 문제점이 있었다.As described above, the conventional method of bending plastic corrugated cardboard uses a method of slightly bending the bent portion of the plastic corrugated cardboard through a bending machine, so that the plastic corrugated cardboard is convex outwardly between the bent portion and the bent portion when the packaging box is made of the plastic corrugated cardboard. As it was bent, the value was lost as a commodity, and there was a problem that it was not gorgeous.

이러한 문제점을 방지하기 위해 본 출원인은 특허10-0006235호에서 플라스틱골판지의 절곡방법에 대해 출원한 바 있다.In order to prevent such a problem, the applicant has applied for a bending method of plastic corrugated cardboard in Patent 10-0006235.

도 1은 종래의 플라스틱 골판지의 절곡부를 직각으로 절곡하는 공정도이고, 도 2는 종래의 다른 실시예를 보인 공정도를 참고하면, 상기 플라스틱 골판지(1)의 절곡방법은 플라스틱 골판지(1)에 절곡부(2)를 괘선으로 표시하고 상기 절곡부(2)가 절곡기(10)에 구비된 펀치(14)의 날(15)과 대응 위치하도록 플라스틱 골판지(1)를 절곡기(10)의 다이부(20) 위에 올려놓는 단계와; 열선(16)에 의해 가열된 절곡기(10)의 펀치(14)를 실린더(12)를 통해 하강시켜 절곡기(10)에 구비된 펀치(14)의 날(15)이 플라스틱 골판지(1)의 절곡부(2) 상면을 열로 용융시키면서 V자 형상에 직각을 이루는 절곡홈(30)을 형성하게 하는 단계와; 절곡기(10)의 펀치(14)를 실린더(12)로 상승시켜 플라스틱 골판지(1)를 꺼낸 다음 표면이 용융 상태인 플라스틱 골판지(1)의 절곡홈(30)을 식혀 V자 형상 그대로 유지하도록 굳게 하는 단계로 이루어진다.1 is a process chart for bending the bent portion of the conventional plastic cardboard at a right angle, Figure 2 is a process diagram showing another conventional embodiment, the bending method of the plastic cardboard (1) is a bent portion on the plastic corrugated cardboard (1) (2) is indicated by a ruled line and the plastic corrugated cardboard 1 is placed in the die portion of the bending machine 10 such that the bending portion 2 is positioned to correspond to the blade 15 of the punch 14 provided in the bending machine 10. (20) placing it on; The punch 14 of the bending machine 10 heated by the hot wire 16 is lowered through the cylinder 12 so that the blade 15 of the punch 14 provided in the bending machine 10 is made of plastic corrugated cardboard 1. Melting the upper surface of the bent portion (2) to form a bent groove (30) perpendicular to the V-shape; Lift the punch 14 of the bending machine 10 to the cylinder 12, take out the plastic corrugated cardboard 1, and then cool the bending grooves 30 of the plastic corrugated cardboard 1 whose surface is molten to maintain the V shape. It is a hardening step.

또 다른 실시예로서 상기 절곡홈(30)이 W자 형상을 이루게 하여 플라스틱 골판지(1)를 180도 각도로 절곡할 수 있다.As another embodiment, the bending groove 30 may be formed in a W shape to bend the plastic corrugated cardboard 1 at an angle of 180 degrees.

그러나 상기 절곡방법으로 이루어진 플라스틱 골판지(1)는 일면에 V자 형상의 절곡홈(30)을 형성하였기 때문에 플라스틱 골판지의 절곡 각도가 90도로 한정되고, 절곡 시 무리한 힘을 주게 되어 절곡홈(30)의 양측에 굴곡이 형성되기 하였으며, 그 배면에는 주름(40)이 생겨 외관상 보기 좋지 않게 되고, 전체적이 형상이 구부러져 포장용 상자를 제작할 때 본래의 상태로 펴지려고 하는 문제점이 있었다.However, since the plastic corrugated cardboard 1 formed by the bending method has a V-shaped bending groove 30 formed on one surface thereof, the bending angle of the plastic corrugated cardboard is limited to 90 degrees, and the bending groove 30 is applied to the bending force when bending. Bending was formed on both sides of the back, and the back surface was wrinkled (40) is not good in appearance, there was a problem that the entire shape is bent to produce the original state when manufacturing the packaging box.

본 발명의 목적은 상기에서와 같은 종래의 결점을 해소하기 위해 창출한 것으로, 플라스틱 골판지의 상하면에 절곡홈을 형성함으로서, 플라스틱 골판지의 절곡각도의 자유조절이 가능하고, 절곡부가 매끄럽게 절곡되며, 상품 제작을 용이하게 하고, 상품 가치를 한층 높일 뿐만 아니라, 제작 후 변형을 방지하고 외관상 보기 좋게 하도록 하는 것을 제공하는 데 목적이 있다.An object of the present invention was created to solve the above-mentioned conventional drawbacks, by forming a bent groove on the upper and lower surfaces of the plastic corrugated cardboard, it is possible to freely control the bending angle of the plastic corrugated cardboard, the bent portion is smoothly bent, goods The purpose is to provide ease of manufacture, to further increase the value of the product, as well as to prevent deformation after appearance and make it look good.

상기의 목적을 달성하기 위한 본 발명은 절곡부의 상하면에 절곡선을 표시 형성하는 절곡선 형성단계와; 상기 절곡부의 상하면에 형성한 절곡선을 상부절곡기에 구비된 상부펀치의 상부날과 하부절곡기에 구비된 하부펀치의 하부날에 대응 위치하도록 하는 작업준비단계와; 상기 절곡부의 상하면에 일정형상의 절곡홈을 형성하게 하는 펀칭단계와; 표면이 용융 상태인 플라스틱 골판지의 절곡홈을 식혀 상기 절곡홈의 형상을 그대로 유지하도록 굳게 하는 냉각단계로 이루어진다.The present invention for achieving the above object is a bending line forming step of forming a bending line on the upper and lower surfaces; A work preparation step of placing the bent lines formed on the upper and lower surfaces of the bent portion corresponding to the upper edge of the upper punch provided in the upper bending machine and the lower edge of the lower punch provided in the lower bending machine; A punching step of forming a bent groove of a predetermined shape on the upper and lower surfaces of the bent portion; Cooling step of cooling the bending grooves of the plastic cardboard in the molten state is made of a cooling step to maintain the shape of the bending grooves intact.

도 1은 종래의 플라스틱 골판지의 절곡부를 직각으로 절곡하는 공정도,1 is a process chart for bending the bent portion of a conventional plastic cardboard at a right angle,

도 2는 종래의 다른 실시예를 보인 공정도.Figure 2 is a process diagram showing another conventional embodiment.

도 3은 본 발명의 플라스틱 골판지의 절곡부를 일정각도로 절곡하는 공정도,Figure 3 is a process of bending the bent portion of the plastic corrugated cardboard of the present invention at a predetermined angle,

도 4는 본 발명의 다른 실시예를 보인 공정도.Figure 4 is a process diagram showing another embodiment of the present invention.

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

100 : 플라스틱 골판지 110 : 절곡부100: plastic cardboard 110: bent portion

120 : 절곡선 200, 600 : 상부절곡기120: bending line 200, 600: upper bending machine

210, 610 : 상부실린더 220, 620 : 상부펀치210, 610: upper cylinder 220, 620: upper punch

222, 622 : 상부날 224, 324, 624, 724 : 열선222, 622: upper blade 224, 324, 624, 724: hot wire

300, 700 : 하부절곡기 310, 710 : 하부실린더300, 700: lower bending machine 310, 710: lower cylinder

320, 720 : 하부펀치 322, 722 : 하부날320, 720: lower punch 322, 722: lower blade

400 : 상부절곡홈 500 : 하부절곡홈400: upper bent groove 500: lower bent groove

이하에서 본 발명의 바람직한 실시예를 첨부된 도면에 의거 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 플라스틱 골판지의 절곡부를 일정각도로 절곡하는 공정도이다.3 is a process chart for bending the bent portion of the plastic corrugated cardboard of the present invention at a predetermined angle.

본 발명은 플라스틱 골판지(100)의 일정부위에 위치한 절곡부(110)의 상하면에 절곡선(120)을 표시 형성하는 절곡선 형성단계와;According to the present invention, a bending line forming step of displaying and forming a bending line 120 on the upper and lower surfaces of the bending part 110 positioned at a predetermined portion of the plastic cardboard 100;

상기 절곡부(110)의 상하면에 형성한 절곡선(120)이 상부절곡기(200)에 구비된 상부펀치(220)의 상부날(222)과 하부절곡기(300)에 구비된 하부펀치(320)의 하부날(322)에 대응 위치하도록 플라스틱 골판지(100)를 상부절곡기(200)와 하부절곡기(300) 사이에 올려놓는 작업준비단계와;Bending line 120 formed on the upper and lower surfaces of the bent portion 110 is the lower punch provided in the upper blade 222 and the lower bending machine 300 of the upper punch 220 provided in the upper bending machine 200 ( A work preparation step of placing the plastic corrugated cardboard 100 between the upper bending machine 200 and the lower bending machine 300 so as to correspond to the lower blade 322 of the 320;

열선(224)에 의해 가열된 상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 하강시키는 동시에 열선(324)에 의해 가열된 하부펀치(320)를 하부실린더(310)로 상승시켜 절곡기(200), (300)에 구비된 펀치(220), (320)의 날(222), (322)이 절곡부(110)의 상하면을 열로 용융시키면서 상부절곡홈(400)과 하부절곡홈(500)을 형성하게 하는 펀칭단계와;The upper punch 220 of the upper bending machine 200 heated by the heating wire 224 is lowered to the upper cylinder 210 while the lower punch 320 heated by the heating wire 324 is lowered to the lower cylinder 310. The upper blades 400 and the upper blades 400 of the punches 220 and 320 of the bends 200 and 300 are melted upward while melting the upper and lower surfaces of the bent portion 110 by heat. A punching step of forming a lower bent groove 500;

상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 상승시키는 동시에 하부펀치(320)를 하부실린더(310)로 하강시킨 후, 플라스틱 골판지(100)를 꺼낸 다음 표면이 용융 상태인 플라스틱 골판지(100)의 절곡홈(400), (500)을 식혀 그 형상 그대로 유지하도록 굳게 하는 냉각단계로 이루어진다.After raising the upper punch 220 of the upper bending machine 200 to the upper cylinder 210 and lowering the lower punch 320 to the lower cylinder 310, the plastic corrugated cardboard 100 is taken out and then the surface is molten. Cooling grooves 400, 500 of the plastic corrugated cardboard 100 is made of a cooling step to harden to maintain the shape intact.

본 발명에 플라스틱 골판지(100)의 절곡부(110)를 일정각도로 절곡하는 공정을 살펴보면 다음과 같다.Looking at the process of bending the bent portion 110 of the plastic corrugated cardboard 100 at a certain angle as follows.

상기 절곡선 형성단계에서는 플라스틱 골판지(100)의 일정부위에 위치하는 절곡부(110)의 상하면에 절곡이 용이하도록 절곡선(120)을 그어 절곡할 위치를 표시한다.In the bending line forming step, the bending line 120 is drawn on the upper and lower surfaces of the bending part 110 positioned at a predetermined portion of the plastic corrugated cardboard 100 to display the bending position.

상기 작업준비단계에서는 플라스틱 골판지(100)의 일정부위에 형성된 절곡부(110)의 상하면에 표시된 절곡선(120)이 상부절곡기(200)에 구비된상부펀치(220)의 상부날(222)과 동시에 하부절곡기(300)에 구비된 하부펀치(320)의 하부날(322)에 대응 위치하도록 플라스틱 골판지(100)를 상부절곡기(200)와 하부절곡기(300)의 사이에 수평으로 준비한다.In the work preparation step, the upper edge 222 of the upper punch 220 is provided with a bending line 120 is displayed on the upper and lower surfaces of the bent portion 110 formed on a predetermined portion of the plastic corrugated cardboard 100 At the same time, the plastic corrugated cardboard 100 is horizontally disposed between the upper bending machine 200 and the lower bending machine 300 so as to correspond to the lower blade 322 of the lower punch 320 provided in the lower bending machine 300. Prepare.

이때, 상부절곡기(200)와 하부절곡기(300)에 구비된 모든 구성요소는 수직으로 한 쌍을 이룬다.At this time, all the components provided in the upper bending machine 200 and the lower bending machine 300 form a pair vertically.

각 절곡기의 펀치에는 열선(224), (324)이 매설되어 전열 스위치를 켜면, 각 절곡기의 펀치는 열선(224), (324)에 의해 플라스틱 골판지(100)의 용융 온도 이상으로 가열된다.When the heating wires 224 and 324 are embedded in the punches of the respective bending machines and the heat switch is turned on, the punches of the bending machines are heated above the melting temperature of the plastic corrugated cardboard 100 by the heating wires 224 and 324. .

그러므로 펀칭단계에서 열선(224), (324)이 매설된 상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 서서히 하강시키고 하부절곡기(300)의 하부펀치(320)를 하부실린더(310)로 서서히 상승시켜 절곡기(200), (300)에 구비된 펀치(220), (300)의 날(222), (322)이 플라스틱 골판지(100)의 절곡부(110) 상면과 하면을 열로 용융시키면서 상면에는 U자 형상에 직각을 이루는 상부절곡홈(400)을, 하면에는 역U자 형상에 직각을 이루는 하부절곡홈(500)을 형성하게 한다.Therefore, in the punching step, the upper punch 220 of the upper bending machine 200 in which the hot wires 224 and 324 are embedded is lowered to the upper cylinder 210 and the lower punch 320 of the lower bending machine 300 is removed. Slowly ascending to the lower cylinder 310, the punch 220, the blade 222, 322 of the bending machine 200, 300 provided in the bent portion 110 of the plastic corrugated cardboard 100 While melting the upper and lower surfaces by heat, the upper surface of the upper bent groove 400 to form a right angle to the U-shape, the lower surface of the lower bent groove 500 to form a right angle to the U-shape.

이때, 플라스틱 골판지(100)는 열에 약하기 때문에 가열된 절곡기(200), (300)에 구비된 펀치(220), (320)의 날(222), (322)이 얇은 두께의 연결부위만 남을 때까지 계속해서 플라스틱 골판지(100)를 압착하면, 플라스틱 골판지(100)의 절곡부(110)는 서서히 녹으면서 그 형상 또한 절곡기(200), (300)에 구비된 펀치(220), (320)의 날(222), (322)과 같은 형상으로 절곡홈(400), (500)을 형성하게 되고, 상기 절곡홈(400), (500)의 표면은 식어 굳을 때까지 용융상태를 유지하게 된다.At this time, since the plastic corrugated cardboard 100 is weak to heat, the punches 220 and 320 blades 222 and 322 of the heated bending machine 200 and 300 are left with only a thin connection portion. If the plastic corrugated cardboard 100 is squeezed continuously, the bent portion 110 of the plastic corrugated cardboard 100 is gradually melted, and the shape of the plastic corrugated cardboard 100 is also provided in the punches 200 and 300. Bent grooves 400 and 500 in the same shape as the blades 222 and 322, and the surfaces of the bent grooves 400 and 500 remain molten until they cool. do.

그러므로 냉각단계에서는 상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 상승시키는 동시에 하부절곡기(300)의 하부펀치(320)를 하부실린더(310)로 하강시켜 플라스틱 골판지(100)를 꺼낸 다음, 표면이 용융 상태인 플라스틱 골판지(100)의 절곡홈(400), (500)을 식혀, 절곡홈(400), (500)의 형상을 그대로 유지하도록 굳게 하는 단계를 이루게 하여 차후에 플라스틱 골판지(100)를 원하는 형상으로 절곡한다.Therefore, in the cooling step, the upper punch 220 of the upper bending machine 200 is raised to the upper cylinder 210 and the lower punch 320 of the lower bending machine 300 is lowered to the lower cylinder 310 to form a plastic corrugated board ( 100), and then the bending grooves 400 and 500 of the plastic corrugated cardboard 100 in the molten state is cooled to form a step of solidifying the shape of the bending grooves 400 and 500 as it is. The plastic corrugated cardboard 100 is then bent into the desired shape.

이상에서 본 발명의 절곡방법에 의해 형성된 플라스틱 골판지(100)는 절곡부(110) 상면에 상부절곡홈(400)이 형성되고, 하면에는 하부절곡홈(500)이 형성됨으로서, 플라스틱 골판지(100)의 절곡 시 절곡부(110)의 원활한 절곡이 이루어지고, 절곡 각도의 자유조절이 가능하므로 원하는 형상으로의 제작이 가능하다.Plastic corrugated cardboard 100 formed by the bending method of the present invention in the above, the upper bending groove 400 is formed on the upper surface of the bent portion 110, the lower bending groove 500 is formed on the lower surface, the plastic corrugated cardboard 100 When the bending of the bending portion 110 is made smoothly bent, and the free angle of the bending angle is possible to manufacture the desired shape.

또, 도 4는 플라스틱 골판지의 절곡부의 각 면에 두개의 절곡홈을 형성하여 절곡하는 다른 실시예의 공정도로써, 절곡선 형성단계에서 플라스틱 골판지(100)의 절곡부(110)에 두 줄의 절곡선(120)을 그어 절곡할 위치를 표시하고, 작업준비단계에서 플라스틱 골판지(100)의 절곡부(110) 상하면에 형성된 절곡선(120)이 상부절곡기(600)에 구비된 상부펀치(620)의 상부날(622)과 하부절곡기(700)에 구비된 하부펀치(720)의 하부날(722)에 대응 위치하도록 플라스틱 골판지(100)를 상부절곡기(600)와 하부절곡기(700)의 사이에 수평으로 준비한다.In addition, Figure 4 is a process diagram of another embodiment of forming two bending grooves on each side of the bent portion of the plastic corrugated sheet, the bending line of the two lines on the bent portion 110 of the plastic corrugated cardboard 100 in the bending line forming step The upper punch 620 provided with a bending line 120 formed on the upper and lower surfaces of the bent portion 110 of the plastic corrugated cardboard 100 in the work preparation step by drawing the 120 to be bent. Plastic corrugated cardboard 100 to the upper edge 622 and the lower bending machine 700 of the lower punch 720 provided in the upper bending machine 600 and the lower bending machine 700 Prepare horizontally in between.

이때, 상부절곡기(600)와 하부절곡기(700)의 모든 구성요소는 수직으로 두 쌍을 이룬다.At this time, all the components of the upper bending machine 600 and the lower bending machine 700 form two pairs vertically.

그러므로 펀칭단계에서 열선(624), (724)이 매설된 상부절곡기(600)의 상부펀치(620)를 상부실린더(610)를 통해 하강시키는 동시에 하부절곡기(700)의 하부펀치(720)를 하부실린더(710)를 통해 상승시켜 각 절곡기(600), (700)에 구비된 펀치(620), (720)의 2개의 날(622), (722)이 플라스틱 골판지(100)의 절곡부(110)를 열로 용융시키면서 상면에는 U자 형상에 직각을 이루는 2개의 상부절곡홈(400)을, 하면에는 역U자 형상에 직각을 이루는 2개의 하부절곡홈(500)을 형성하게 하며 두께가 얇은 약간에 연결부위만 남게 한다.Therefore, the lower punch 720 of the lower bending machine 700 while lowering the upper punch 620 of the upper bending machine 600 in which the hot wires 624, 724 are embedded in the punching step is lowered through the upper cylinder 610. 2 through the lower cylinder 710, the punch 620, 720 of each bending machine 600, 700, 710, 722 of the bending of the plastic corrugated cardboard 100 While melting part 110 with heat, the upper surface has two upper bent grooves 400 perpendicular to the U shape, and the lower surface has two lower bent grooves 500 perpendicular to the inverted U shape. Make sure that only a few joints remain in the thin layer.

그리고 냉각단계에서 상부절곡기(600)의 상부펀치(620)를 상부실린더(610)로 상승시키는 동시에 하부절곡기(700)의 하부펀치(720)를 하부실린더(710)로 하강시켜 플라스틱 골판지(100)를 꺼낸 다음, 표면이 용융 상태인 플라스틱 골판지(100)의 절곡홈(400), (500)을 식혀, 상면에 형성된 상부절곡홈(400)과 하면에 형성된 하부절곡홈(500)의 형상을 그대로 유지하도록 굳게 하여 플라스틱 골판지(100)를 원하는 각도로 절곡한다.In the cooling step, the upper punch 620 of the upper bending machine 600 is raised to the upper cylinder 610 and the lower punch 720 of the lower bending machine 700 is lowered to the lower cylinder 710 to make the plastic corrugated board ( After removing the 100, the surfaces of the plastic corrugated cardboard 100, the bent groove 400, 500 is cooled, the upper bent groove 400 formed on the upper surface and the lower bent groove 500 formed on the lower surface The plastic corrugated cardboard 100 is bent at a desired angle by hardening to keep it as it is.

한편, 절곡된 플라스틱 골판지(100)의 양 단부를 통해 먼지나 이물질 등이 유입되는 것을 방지하기 위해 플라스틱 골판지(100)의 양 단부를 상부절곡기(200), (600)와 하부절곡기(300), (700) 사이에 올려놓고, 가열된 상부절곡기(200), (600)의 상부펀치(220), (620)를 상부실린더(210), (610)로 하강시키는 동시에 가열된 하부절곡기(300), (700)의 하부펀치(320), (720)를 하부실린더(310), (710)로 상승시켜 각 절곡기(200), (300), (600), (700)에 구비된 펀치(220), (320), (620), (720)의 날이 플라스틱 골판지(100)의 양 단부를 용융시켜 플라스틱 골판지(100)의양 단부를 마감되게 할 수도 있다.On the other hand, in order to prevent the inflow of dust or foreign matter through the both ends of the bent plastic cardboard 100, the upper ends of the upper bending machine 200, 600 and the lower bending machine 300 ), 700, and the lower upper bent (200), 600 of the upper punch (220), 620 of the upper upper bending machine (200) to lower the upper cylinder (210, 610) at the same time heated lower bending Lower punches 320 and 720 of the machines 300 and 700 are raised to the lower cylinders 310 and 710 to the respective bending machines 200, 300, 600 and 700. Punch 220, 320, 620, 720 of the provided blades may melt both ends of the plastic cardboard 100 to finish both ends of the plastic cardboard (100).

상기 절곡방법에 의하여 형성된 플라스틱 골판지(100)는 그 일정부위에 절곡부(110)를 구비하고 있고, 상기 절곡부(110)의 상면에는 상부절곡홈(400)이, 하면에는 하부절곡홈(500)이 형성된다.The plastic corrugated cardboard 100 formed by the bending method is provided with a bent portion 110 in a predetermined portion, the upper surface of the bent portion 110, the upper bending groove 400, the lower surface of the lower bending groove 500 ) Is formed.

또는 상기 플라스틱 골판지(100)의 일정부위에 구비된 상기 절곡부(110)의 상면에는 두 개의 상부절곡홈(400)이, 하면에 두 개의 하부절곡홈(500)이 형성된다.Alternatively, two upper bent grooves 400 are formed on an upper surface of the bent portion 110 provided at a predetermined portion of the plastic corrugated cardboard 100, and two lower bent grooves 500 are formed on a lower surface thereof.

상술한 바와 같이 구성된 본 발명은, 원하는 각도로 절곡이 가능하고, 절곡 시 다시 본래의 상태로 펴지려고 하는 힘을 약화시키며, 절곡 간극을 조절하여 원하는 형상을 자유자재로 만들 수 있어 간극을 좁게 했을 경우 원형으로도 감을 수 있으며, 또한 지지하는 힘이 크므로 제작된 상품의 견고성이 뛰어나다.The present invention configured as described above can be bent at a desired angle, weakens the force to be unfolded again when bending, and can adjust the bending gap to make a desired shape freely to narrow the gap. In this case, it can also be wound in a circular shape, and because of the large supporting force, the product has excellent rigidity.

플라스틱 골판지의 상하면에 절곡홈을 형성하여 절곡부가 매끄럽게 절곡되게함으로서, 자유로운 절곡 각도조절이 가능하여 원하는 형상으로의 제작이 가능할 뿐만 아니라 절곡 시 절곡홈 주위에서 발생하는 골복원력을 약화시키며 전체적인 형상이 구부러지는 것을 방지하고 본래의 형상으로 펴지려는 것을 억제하여 상품의 제작이 용이하고, 외관상 보기 좋게 하여 상품의 가치를 높일 수 있는 효과가 있다.By forming a bent groove on the upper and lower surfaces of the plastic corrugated sheet to make the bent portion smoothly bent, it is possible to freely adjust the bending angle to produce the desired shape, as well as to weaken the bone restoration force generated around the bent groove during bending, and the overall shape is bent. By preventing the fall and suppressing the unfolding in the original shape, the production of the product is easy, and the appearance is good to have the effect of increasing the value of the product.

Claims (6)

플라스틱 골판지(100)의 일정부위에 위치한 절곡부(110)의 상하면에 절곡선(120)을 표시 형성하는 절곡선 형성단계와;A bending line forming step of displaying and forming a bending line 120 on upper and lower surfaces of the bending part 110 positioned at a predetermined portion of the plastic cardboard 100; 상기 절곡부(110)의 상하면에 형성한 절곡선(120)이 상부절곡기(200)에 구비된 상부펀치(220)의 상부날(222)과 하부절곡기(300)에 구비된 하부펀치(320)의 하부날(322)에 대응 위치하도록 플라스틱 골판지(100)를 상부절곡기(200)와 하부절곡기(300) 사이에 올려놓는 작업준비단계와;Bending line 120 formed on the upper and lower surfaces of the bent portion 110 is the lower punch provided in the upper blade 222 and the lower bending machine 300 of the upper punch 220 provided in the upper bending machine 200 ( A work preparation step of placing the plastic corrugated cardboard 100 between the upper bending machine 200 and the lower bending machine 300 so as to correspond to the lower blade 322 of the 320; 열선(224)에 의해 가열된 상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 하강시키는 동시에 열선(324)에 의해 가열된 하부펀치(320)를 하부실린더(310)로 상승시켜 절곡기(200), (300)에 구비된 펀치(220), (320)의 날(222), (322)이 절곡부(110)의 상하면을 열로 용융시키면서 상부절곡홈(400)과 하부절곡홈(500)을 형성하게 하는 펀칭단계와;The upper punch 220 of the upper bending machine 200 heated by the heating wire 224 is lowered to the upper cylinder 210 while the lower punch 320 heated by the heating wire 324 is lowered to the lower cylinder 310. The upper blades 400 and the upper blades 400 of the punches 220 and 320 of the bends 200 and 300 are melted upward while melting the upper and lower surfaces of the bent portion 110 by heat. A punching step of forming a lower bent groove 500; 상부절곡기(200)의 상부펀치(220)를 상부실린더(210)로 상승시키는 동시에 하부펀치(320)를 하부실린더(310)로 하강시킨 후, 플라스틱 골판지(100)를 꺼낸 다음 표면이 용융 상태인 플라스틱 골판지(100)의 절곡홈(400), (500)을 식혀 그 형상 그대로 유지하도록 굳게 하는 냉각단계로 이루어지는 것을 특징으로 하는 플라스틱 골판지의 절곡방법.After raising the upper punch 220 of the upper bending machine 200 to the upper cylinder 210 and lowering the lower punch 320 to the lower cylinder 310, the plastic corrugated cardboard 100 is taken out and then the surface is molten. Method of bending plastic corrugated cardboard, characterized in that the cooling step of hardening to maintain the shape of the bending grooves (400), 500 of the plastic corrugated cardboard (100). 제 1항에 있어서,The method of claim 1, 상기 상부절곡홈(400)이 U자 형상에 직각을 이루게 하고, 하부절곡홈(500)이 역U자 형상에 직각을 이루게 하여 절곡 각도의 자유조절이 가능하도록 하는 것을 특징으로 하는 플라스틱 골판지의 절곡방법The upper bending groove 400 makes the right angle to the U-shape, the lower bending groove 500 makes the right angle to the inverted U-shape bending of the plastic corrugated cardboard, characterized in that it is possible to freely control the bending angle Way 제 1항에 있어서,The method of claim 1, 상기 상부절곡홈(400)이 U자 형상에 직각을 이루면서 두개가 연결되고, 하부절곡홈(500)이 역 U자 형상에 직각을 이루면서 두개가 연결되도록 이루게 하여 플라스틱 골판지(100)를 원하는 각도로 자유롭게 절곡할 수 있도록 하는 것을 특징으로 하는 플라스틱 골판지의 절곡방법.The upper bent groove 400 is connected to each other while forming a right angle to the U-shape, the lower bent groove 500 is formed at a desired angle by making the two be connected to form a right angle to the inverted U-shape. Bending method of plastic corrugated cardboard characterized in that it can be bent freely. 제 1항에 있어서,The method of claim 1, 절곡된 플라스틱 골판지(100)의 양 단부가 용융에 의해 마감되어 있는 것을 특징으로 하는 플라스틱 골판지의 절곡방법.Both ends of the bent plastic corrugated cardboard (100) is a method of bending plastic cardboard, characterized in that the finish by melting. 절곡부(110)의 상면에 상부절곡홈(400)과, 하면에 하부절곡홈(500)이 형성되어 있는 것을 특징으로 하는 플라스틱 골판지.Plastic corrugated cardboard, characterized in that the upper bending groove 400 and the lower bending groove 500 is formed on the upper surface of the bent portion (110). 제 5항에 있어서,The method of claim 5, 절곡부(110)의 상면에 두 개의 상부절곡홈(400)이 연결 형성되고, 하면에 두 개의 하부절곡홈(500)이 형성되어 있는 것을 특징으로 하는 플라스틱 골판지.Two upper bent grooves 400 are formed on the upper surface of the bent portion 110, and two lower bent grooves 500 are formed on the lower surface of the corrugated cardboard.
KR1020030007804A 2003-02-07 2003-02-07 bending method for plastic corrugated cardboard and be made plastic corrugated by the method KR20040071895A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031233B1 (en) * 2011-01-28 2011-04-29 이연호 Banding method of pc cover
WO2018169315A1 (en) * 2017-03-16 2018-09-20 이광준 Product employing foamed synthetic resin plate having foldability and method for manufacturing same
KR101951690B1 (en) * 2018-06-15 2019-02-25 박선우 A folding type thermal insulation box and a vacuum insulation sheet groove line forming device using a vacuum insulation sheet on which a groove line is formed
KR20230082940A (en) * 2021-12-02 2023-06-09 주식회사코리아엠에프 Danpla sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031233B1 (en) * 2011-01-28 2011-04-29 이연호 Banding method of pc cover
WO2018169315A1 (en) * 2017-03-16 2018-09-20 이광준 Product employing foamed synthetic resin plate having foldability and method for manufacturing same
KR101951690B1 (en) * 2018-06-15 2019-02-25 박선우 A folding type thermal insulation box and a vacuum insulation sheet groove line forming device using a vacuum insulation sheet on which a groove line is formed
KR20230082940A (en) * 2021-12-02 2023-06-09 주식회사코리아엠에프 Danpla sheet

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