KR100791914B1 - Closed kneader - Google Patents

Closed kneader Download PDF

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Publication number
KR100791914B1
KR100791914B1 KR1020020020793A KR20020020793A KR100791914B1 KR 100791914 B1 KR100791914 B1 KR 100791914B1 KR 1020020020793 A KR1020020020793 A KR 1020020020793A KR 20020020793 A KR20020020793 A KR 20020020793A KR 100791914 B1 KR100791914 B1 KR 100791914B1
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South Korea
Prior art keywords
kneading
chamber
kneader
rotor shaft
radius
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KR1020020020793A
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Korean (ko)
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KR20030082184A (en
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오쯔카토시유키
이리에마코토
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가부시키가이샤 모리야마
니혼 스핀들 세이조 가부시키가이샤
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Priority to KR1020020020793A priority Critical patent/KR100791914B1/en
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    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
    • B29B7/186—Rotors therefor
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

종래의 밀폐식 혼련기에서는 혼련재료의 내부까지 충분한 냉각이 행해지지 않기 때문에 일차 혼련의 종료시에 혼련재료의 온도는 고온이고, 일차혼련과 이차혼련의 사이에 냉각시간을 설정하거나, 일차혼련종료후, 냉각의 필요성때문에 별도의 혼련기로 이동하여 이차혼련을 행하는 경우도 있어 생산성을 저해하는 요인으로 되고 있었다. 본 발명은, 이러한 점에 감안하여 일차혼련 종료시에 있어서의 혼련재료의 온도를 가황제계 첨가허용온도 이하로 억제하고, 일차혼련 종료후 곧바로 이차혼련을 행하는 밀폐식 혼련기를 제공하는 것을 목적으로 한다.In the conventional hermetic kneader, since sufficient cooling is not performed to the inside of the kneading material, the temperature of the kneading material is high at the end of the first kneading, and a cooling time is set between the first kneading and the second kneading, or after the end of the first kneading. Due to the necessity of cooling, secondary kneading may be performed by moving to a separate kneader, which has been a factor that hinders productivity. In view of this point, an object of the present invention is to provide a sealed kneader in which the temperature of the kneading material at the end of the first kneading is kept below the vulcanizing agent addition allowable temperature, and the second kneading is performed immediately after the first kneading.

또한, 혼련재료를 수납하는 챔버와, 이 챔버 내에 설치된 한쌍의 회전자를 구비한 밀폐식 혼련기에 있어서, 챔버 내면반경에 대해서 회전자 축부 반경의 비를 0.65이상으로 한다.Moreover, in the sealed kneader provided with the chamber which accommodates kneading material, and a pair of rotor provided in this chamber, the ratio of the rotor shaft radius with respect to an inner surface radius of a chamber shall be 0.65 or more.

Description

밀폐식 혼련기{CLOSED KNEADER}Hermetic kneader {CLOSED KNEADER}

도 1은, 본 발명의 밀폐식 혼련기의 정면도이다.1 is a front view of a sealed kneader of the present invention.

도 2는, 본 발명의 밀폐식 혼련기의 일부단면 측면도이다.2 is a partial cross-sectional side view of the sealed kneader of the present invention.

도 3은, 본 발명의 밀폐식 혼련기에 이용하는 회전자의 정면도이다.3 is a front view of a rotor used for the sealed kneader of the present invention.

도 4는, 종래예의 밀폐식 혼련기의 정면도이다.4 is a front view of a hermetic kneader of the conventional example.

도 5는, 종래예의 밀폐식 혼련기의 일부단면 측면도이다.5 is a partial cross-sectional side view of the hermetic kneader of the conventional example.

도 6은, 본 발명의 밀폐식 혼련기에 의한 일차혼련의 혼련차트도이다.6 is a kneading chart of primary kneading by the sealed kneading machine of the present invention.

도 7은, 종래형 혼련기에 의한 일차혼련의 혼련차트도이다.7 is a kneading chart of primary kneading by a conventional kneading machine.

도 8은, 회전자 축부 반경과 챔버 내면반경의 비와 혼련온도의 관계를 나타내는 그래프이다.8 is a graph showing the relationship between the ratio of the rotor shaft radius to the inner radius of the chamber and the kneading temperature.

본 발명은 플라스틱, 고무 등의 점조재료를 혼련시키는 밀폐식 혼련기 중, 특히 그 회전자축의 형상에 관한 것이다.TECHNICAL FIELD This invention relates to the shape of the rotor shaft especially in the sealed kneader which mixes viscous materials, such as plastic and rubber | gum.

종래의 밀폐식 혼련기의 일예를 도 4 내지 도 5에 나타낸다. 도에 있어서 밀폐식 혼련기(50)는, 혼련재료를 수납하는 혼련통(이하, 「챔버(3)」라 함)과 이 챔 버(3)의 측벽(7a, 7b)에 관통하는 회전자 구동축(54a, 54b)(이하 총칭할 때는, 단지 54라 함)을 양단에 구비하고, 챔버(3) 내에서 혼련재료를 혼련시키는 회전자 날개(53)를 형성한 회전자 축부(52)로 이루어지는 쌍을 이루는 회전자(51, 51)와, 가압덮개(8)로 이루어지고, 혼련재료의 혼련에 있어서는, 가압덮개(8)를 상부로 개방한 상태로(도 4의 8a의 위치참조) 혼련재료를 적당 수단으로 챔버(3) 내에 투입하고, 가압덮개(8)를 하방으로 내리고(도 4의 실선위치 참조) 회전자 구동축(54)에 연결한 모터 등의 구동수단에 의해 회전자(51)를 회전구동함으로서 혼련재료의 혼련을 행하는 것이다.4 to 5 show one example of a conventional hermetic kneader. In the figure, the sealed kneader 50 includes a kneading barrel (hereinafter referred to as "chamber 3") for storing kneading material and a rotor penetrating the side walls 7a and 7b of the chamber 3. To the rotor shaft portion 52 having drive shafts 54a and 54b (hereinafter collectively referred to as only 54) at both ends and forming rotor blades 53 for kneading kneading material in the chamber 3. It consists of the paired rotors 51 and 51 and the press cover 8, and in the kneading | mixing of kneading material, in the state which opened the press cover 8 to the top (refer to the position of 8A of FIG. 4). The kneading material is introduced into the chamber 3 by a suitable means, the pressure cover 8 is lowered (see the solid line position in FIG. 4), and the rotor (by a drive means such as a motor connected to the rotor drive shaft 54). The kneading material is kneaded by rotating 51).

또한, 쌍을 이루는 회전자 구동축(54)은 기어 등의 연결수단을 이용함으로써 타방을 종동축으로 하여도 좋다.In addition, the pair of rotor drive shafts 54 may use the other as a driven shaft by using connecting means such as a gear.

종래의 밀폐식 혼련기를 이용하는 혼련에 있어서는 챔버 내면반경(Rc')과 회전자 축부 반경(Rr')의 비(Rr'/Rc', 이하 동일)는 0.5 전후이고, 또한, 회전자 날개(53)의 랜드폭(w')과 회전자 축부 반경(Rr')의 비(w'/Rr' 이하 동일)는 0.3 전후, 또한, 회전자 축부 외주면과 챔버 벽면의 간극(m')은 챔버 내면반경(Rc')의 50% 전후이었다. 이것은 회전자 축부 외주면과 챔버 내벽면의 간극이 크고, 챔버 내에서, 혼련되는 혼련재료에 두께를 유지시키게 된다.In kneading using a conventional hermetic kneader, the ratio (Rr '/ Rc', hereinafter equal) of the chamber inner surface radius Rc 'and the rotor shaft radius Rr' is about 0.5, and the rotor blade 53 The ratio of the land width (w ') to the rotor shaft radius (Rr') (same as w '/ Rr' or less) is about 0.3, and the gap m 'between the outer peripheral surface of the rotor shaft and the chamber wall is It was around 50% of the radius Rc '. This causes a large gap between the outer circumferential surface of the rotor shaft and the inner wall of the chamber to maintain the thickness of the kneading material kneaded in the chamber.

혼련에 있어서, 혼련시의 전단 및 분산에 의한 내부발열 등으로 혼련재료나 챔버 내, 및 회전자축의 발열은 현저하고, 이 때문에, 챔버 벽내나 회전자 축내에 냉각수를 순환시키지만, 혼련재료의 두께가 크고 열전도율이 낮은 혼련재료(특히 고무 등)의 경우, 혼련속도, 즉 발열하는 빠르기에 대해서 혼련재료 내부까지 충분한 냉각이 이루어지지 않는다.In kneading, the heat generation of the kneading material, the chamber, and the rotor shaft is remarkable due to internal heat generation due to shearing and dispersion during kneading, so that the cooling water is circulated in the chamber wall or the rotor shaft. In the case of a large kneading material having a low thermal conductivity (particularly rubber or the like), sufficient cooling to the inside of the kneading material is not achieved for the kneading speed, that is, the rapid heat generation.

여기서, 혼련용적이 작은 혼련기에 있어서는 내부온도의 상승이 작고 혼련재료 내부의 냉각이 충분히 행해지는 경우도 있지만, 양산설비로서는 생산성이 나쁘고 현실적이지 않다.Here, in the kneading machine with a small kneading volume, the internal temperature rises small and cooling inside the kneading material may be sufficiently performed, but the productivity is poor and not practical as a mass production equipment.

상기 밀폐식 혼련기에 있어서, 일반적인 혼련공정에서는, 가황제계를 포함하지 않고 혼련을 행하는 일차혼련과, 일차혼련에 의해서 일정한 혼련공정이 끝난 혼련재료와 가황제를 섞어서 행하는 이차혼련으로 나누어지지만, 가황제계를 섞기 위해서는 혼련재료의 온도가 어느 일정온도(재료에 따라 다름) 이하인 것이 필요하다.In the above-mentioned closed kneading machine, in the general kneading step, it is divided into primary kneading which does not include a vulcanizing agent system and secondary kneading which is performed by mixing the kneading material and the vulcanizing agent which have been subjected to a certain kneading process by primary kneading. In order to mix, it is necessary that the temperature of the kneading material is below a certain temperature (depending on the material).

그러나, 상기한 바와 같이, 종래의 밀폐식 혼련기에서는 혼련재료의 내부까지 충분한 냉각이 행해지지 않기 때문에 일차혼련의 종료시에는 혼련재료의 온도는 고온이고, 일차혼련과 이차혼련의 사이에 냉각시간을 설정하거나 일차혼련 종료후, 냉각의 필요성때문에 별도의 혼련기로 이동하여 이차혼련을 행하는 경우도 있어 생산성을 저해하는 요인으로 되고 있었다.However, as described above, in the conventional hermetic kneader, since sufficient cooling is not performed to the inside of the kneading material, the temperature of the kneading material is high at the end of the first kneading, and the cooling time is maintained between the first kneading and the second kneading. After setting or after the end of the first kneading, the second kneading may be performed by moving to a separate kneader because of the necessity of cooling, which is a factor that hinders productivity.

본 발명은, 이러한 점을 감안하여, 일차혼련 종료시에 있어서의 혼련재료의 온도를 가황제계 첨가허용온도 이하로 억제하고, 일차혼련 종료후 곧바로 이차혼련이 행해지는 밀폐식 혼련기를 제공하는 것을 목적으로 한다.In view of this point, an object of the present invention is to provide a hermetically sealed kneader in which the temperature of the kneading material at the end of the first kneading is kept below the vulcanizing agent addition allowable temperature, and the second kneading is performed immediately after the end of the first kneading. do.

상기 목적을 달성하기 위한 제 1의 발명은, 챔버 내면반경에 대해서 회전자 축부 반경의 비를 0.65 이상으로 한 것을 특징으로 한다.The first invention for achieving the above object is characterized in that the ratio of the radius of the rotor shaft to the radius of the inner surface of the chamber is set to 0.65 or more.

상기 구성으로 이루어지는 본 발명은, 챔버 내면반경에 대한 회전자 축부 반경의 비를 0.65 이상으로 함으로써, 종래의 혼련기보다 15% 이상 크게 되고, 혼련재료에 접촉하는 회전자 축부의 냉각표면적을 확대함으로서 혼련재료의 온도상승을 가황제계 첨가허용온도 이하로 저감하는 것을 도모할 수 있다.According to the present invention having the above configuration, the ratio of the radius of the rotor shaft to the radius of the inner surface of the chamber is 0.65 or more, which is 15% or more larger than that of the conventional kneader, and by expanding the cooling surface area of the rotor shaft in contact with the kneading material. The temperature rise of the kneaded material can be reduced to below the allowable temperature for adding the vulcanizing agent.

또한, 제 2의 발명은, 회전자 축부 반경에 대해서 회전자 날개의 랜드폭의 비를 0.25 이하로 한 것을 특징으로 한다.The second invention is characterized in that the ratio of the land width of the rotor blades to the rotor shaft radius is 0.25 or less.

상기 구성으로 이루어지는 제 2발명은, 회전자 축부 반경에 대해서 회전자 날개의 랜드폭의 비를 종래의 혼련기보다 작게 함으로써, 챔버 내벽면과 회전자 날개의 랜드부에서 생기는 혼련재료의 발열을 억제하는 것이 가능함과 아울러, 혼련재료의 맞물림성과 혼련성능에 관계하는 회전자 날개의 경사각도의 범위도 넓게 가지는 것이 가능하게 된다.According to the second aspect of the present invention, the ratio of the land width of the rotor blade to the rotor shaft radius is made smaller than that of the conventional kneader, thereby suppressing the heat generation of the kneading material generated in the chamber inner wall surface and the land portion of the rotor blade. In addition to this, it is possible to have a wide range of inclination angles of the rotor blades related to the meshing properties and the kneading performance of the kneading material.

또한, 제 3의 발명은, 회전자 축부 외주면과 챔버 내벽면의 간극을 챔버 내면반경의 35% 이하로 한 것을 특징으로 한다.The third invention is characterized in that the gap between the outer circumferential surface of the rotor shaft and the inner wall of the chamber is set to 35% or less of the inner radius of the chamber.

상기 구성으로 이루어지는 제 3의 발명은, 회전자 축부 외주면과 챔버 내벽면의 간극을 챔버 내면반경의 35% 이하로 함으로서 혼련재료의 두께를 가급적 작게 하고, 혼련재료 내부까지 충분히 냉각하는 것을 가능하게 한다.According to the third aspect of the present invention, the thickness of the kneading material is made as small as possible by making the gap between the outer circumferential surface of the rotor shaft portion and the inner wall of the chamber less than 35% of the inner surface radius of the chamber, thereby allowing the inside of the kneading material to be sufficiently cooled. .

이하, 본 발명을 도 1 내지 도 3에 나타내는 실시예에 기초하여 설명한다. 도에 있어서 밀폐식 혼련기(1)는, 회전자의 부착이 접선방식인 가압 니더의 일예이다. 주지 구조와 마찬가지로(동일 구조에 관해서는 동일부호를 붙여서 설명을 행략한다.) 혼련재료를 수납하는 챔버(3)와 이 챔버(3)의 측벽(7a, 7b)에 관통하는 회전자 구동축(6a, 6b)을 양단에 구비하고, 챔버(3) 내에서 혼련재료를 혼련시키는 회전자 날개(5)를 형성한 회전자 축부(4)로 이루어지는 쌍을 이루는 회전자(2, 2)와, 가압덮개(8)로 이루어진다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated based on the Example shown to FIGS. 1-3. In the figure, the sealed kneader 1 is an example of a pressure kneader in which the attachment of the rotor is a tangential type. Like the well-known structure (the same structure is attached | subjected and the description is abbreviate | omitted.) The chamber 3 which accommodates kneading material, and the rotor drive shaft 6a which penetrates into the side walls 7a and 7b of this chamber 3 Pairs of rotors 2 and 2, each of which comprises a rotor shaft portion 4 having a rotor blade 5 for kneading the kneading material in the chamber 3, and having a 6b) at both ends; It consists of a cover (8).

이 때, 쌍을 이루는 회전자(2, 2)의 회전자 날개(5, 5)는 도 1에 나타내는 바와 같이 서로 겹치지 않는 접선방식으로 되는 것이 바람직하다.At this time, the rotor blades 5 and 5 of the paired rotors 2 and 2 are preferably in a tangential manner not overlapping with each other as shown in FIG.

단, 본 발명의 밀폐식 혼련기(1)는, 상기 챔버(3)의 내면반경(Rc)에 대해서 회전자 축부(4)의 반경(Rr)의 비를 0.65 이상으로 하고, 또한, 회전자 축부(4)의 외주면과 챔버(3)의 내벽면의 간극(m)을 챔버 내면반경(Rc)의 35% 이하로 한 것이다.However, in the sealed kneader 1 of the present invention, the ratio of the radius Rr of the rotor shaft portion 4 to the inner surface radius Rc of the chamber 3 is set to 0.65 or more, and the rotor The clearance m between the outer peripheral surface of the shaft portion 4 and the inner wall surface of the chamber 3 is set to 35% or less of the inner surface radius Rc of the chamber.

이것은 혼련온도의 상승을 방지하기 위한 실험으로부터 결정된 것으로, 그 실험결과를 도 6 이하에 나타낸다. 또한, 본 실험은 혼련용량이 55 리터급의 혼련기를 사용하여 행한 것이다.This was determined from an experiment for preventing an increase in kneading temperature, and the results of the experiment are shown in FIG. 6 and below. In addition, this experiment was performed using the kneading machine whose kneading | mixing capacity is 55 liter class.

도 6은 본 발명의 혼련기에 의한 일차혼련의 혼련차트를, 도 7은 종래형 혼련기에 의한 일차혼련의 혼련차트를 나타내고, x축에 시간, y축에 E, E'가 전력값, T, T'는 혼련재료 온도를 나타낸다. 전력값이 도중 0으로 되는 간격이 있는 것은, 일차혼련 중에 회전자의 회전을 멈추고 혼련재료의 추가나 약제의 투입을 행할 필요가 있기 때문이다.FIG. 6 shows a kneading chart of primary kneading by the kneader of the present invention, and FIG. 7 shows a kneading chart of primary kneading by a conventional kneader, time on the x-axis, E, E 'on the y-axis, power value, T, T 'represents the kneading material temperature. The interval at which the electric power value becomes zero midway is because it is necessary to stop the rotation of the rotor during the first kneading and add the kneading material or add the chemicals.

도 7로부터 명확해지는 바와 같이, 종래형 혼련기에서는 일차혼련 중에 재료의 최고온도는 120℃를 넘어, 가황제계가 투입가능한 온도인 100 내지 120℃의 범위에서 벗어나서, 이차혼련을 행하기 위해서는 일정한 냉각공정이 필요로 되지만, 본 발명의 혼련기에서는, 도 6에서 나타내는 바와 같이, 일차혼련 중에 재료의 최고온도는 120℃를 넘는 일은 없어, 이차혼련까지의 냉각공정이 불필요하게 할 수 있었다.As apparent from FIG. 7, in the conventional kneader, the maximum temperature of the material during the first kneading exceeds 120 ° C., which is outside the range of 100 to 120 ° C., which is the temperature at which the vulcanizing agent can be put, and performs constant cooling in order to perform the second kneading. Although a process is required, in the kneader of this invention, as shown in FIG. 6, the maximum temperature of a material does not exceed 120 degreeC during primary kneading, and the cooling process to secondary kneading could be made unnecessary.

도 8은, 회전자 축부 반경(Rr)과 챔버 내면반경(Rc)의 비와 혼련온도의 관계를 나타낸다. a는 아크릴고무 배합재료, b는 니트릴고무 배합재료, c는 클로로프렌고무 배합재료를 각각 나타낸다. 도 8에서 명확해지는 바와 같이, 회전자 축부의 반경(Rr)과 챔버 내면반경(Rc)의 비가 1에 가까와질수록, 바꾸어 말하면 챔버 내벽과 회전자 축부의 간극(m)이 작게 될수록 혼련재료의 두께는 작게 되고, 혼련재료의 온도가 낮아지게 되는 것을 나타낸다.8 shows the relation between the ratio of the rotor shaft radius Rr and the chamber inner radius Rc and the kneading temperature. a represents an acrylic rubber compounding material, b represents a nitrile rubber compounding material, and c represents a chloroprene rubber compounding material, respectively. As is clear from Fig. 8, the closer the ratio of the radius Rr of the rotor shaft portion to the inner surface radius Rc of the chamber is close to 1, in other words, the smaller the gap m of the chamber inner wall and the rotor shaft portion, the lower the kneading material. It shows that thickness becomes small and the temperature of kneading material becomes low.

한편, 혼련재료의 온도를 낮추는 효과가 있는 반면, 간극(m)이 작게 될수록 혼련가능한 혼련재료의 용적도 적게 되고 양산설비로서 생산성이 열화하게 된다.On the other hand, while there is an effect of lowering the temperature of the kneading material, the smaller the gap m, the smaller the volume of the kneading material that can be kneaded, and the productivity is degraded as a mass production equipment.

본 발명자들은 이들 실험결과, 양산설비로서 충분한 생산량을 유지함과 아울러, 일차혼련 종료시에 혼련재료의 최고온도를 가황제계 첨가허용온도 이하로 억제하는 것이 가능한 회전자 축부 반경(Rr)과 챔버 내면반경(Rc)의 비를 0.65 이상(바람직하게는 0.7 이상), 마찬가지의 관점으로부터 회전자 축부 외주면과 챔버 내벽면과의 간극(m)을 챔버 내면반경(Rc)의 35% 이하(바람직하게는 30% 이하)로 하였다.As a result of these experiments, the inventors of the present invention found that the rotor shaft radius Rr and the inner surface radius of the chamber, which are capable of maintaining a sufficient production capacity as a mass production equipment and at the end of the first kneading, can suppress the maximum temperature of the kneading material below the allowable temperature for adding the vulcanizing agent. The ratio of Rc) is 0.65 or more (preferably 0.7 or more), and from the same point of view, the clearance m between the outer peripheral surface of the rotor shaft and the chamber inner wall surface is 35% or less (preferably 30%) of the chamber inner radius Rc. Or less).

또한, 회전자 날개(5)의 랜드부에서 생기는 발열의 억제와 회전자 날개(5)의 경사각도의 범위를 넓게 가지기 위해서 회전자 축부 반경(Rr)과 회전자 날개(5)의 랜드폭(w)의 비를 0.25 이하(바람직하게는 0.2 이하)로 하였다.In addition, the rotor shaft radius Rr and the land width of the rotor blades 5 in order to suppress the heat generated from the land portions of the rotor blades 5 and to widen the inclination angle of the rotor blades 5. The ratio of w) was made into 0.25 or less (preferably 0.2 or less).

상기 구성에 있어서, 혼련재료의 혼련에 있어서는, 종래와 마찬가지로, 혼련재료 투입후, 회전자(2)를 회전구동함으로서 혼련재료의 일차혼련에 이어서 이차혼련을 행할 수 있다.In the above configuration, in the kneading of the kneading material, after kneading the kneading material, the kneading material can be rotated and driven to rotate the kneading material, followed by secondary kneading.

이상과 같이 본 발명에 의할 때는, 혼련 중에 있어서의 혼련재료의 두께를 얇게 억제하여 그 냉각을 충분히 행할 수 있기 때문에, 일차혼련 종료시에 있어서의 혼련재료의 온도를 가황제계 첨가허용온도 이하로 억제할 수 있고, 따라서 일차혼련 종료후 곧바로 이차혼련이 가능하다. 맞물림 방식의 밀폐식 혼련기에서도 마찬가지의 냉각효과가 얻어진다.As described above, according to the present invention, since the thickness of the kneaded material in kneading can be suppressed to be thin and the cooling can be sufficiently performed, the temperature of the kneaded material at the end of the first kneading is suppressed to below the vulcanizing agent addition allowable temperature. Thus, secondary kneading is possible immediately after the end of the first kneading. The same cooling effect can also be obtained in an enclosed kneader of the interlocking system.

또한, 회전자 축부 반경과 회전자 날개의 랜드폭의 비를 0.25 이하로 하였기 때문에 챔버 내벽과 회전자 날개의 랜드부에서 생기는 혼련재료의 발열을 억제할 수 있음과 아울러, 혼련재료의 맞물림성과 혼련성능에 관계하는 회전자 날개의 경사각도의 범위도 넓게 가지는 것이 가능하게 되는 등의 효과를 가진다.In addition, since the ratio of the rotor shaft radius to the rotor blade land width is 0.25 or less, the heat generation of the kneading material generated at the inner wall of the chamber and the land of the rotor blade can be suppressed, and the meshing properties and kneading of the kneading material can be suppressed. It is possible to have a wide range of inclination angles of the rotor blades related to performance, and the like.

또한, 회전자 축부 외주면과 챔버 내벽면과의 간극을 챔버 내면반경의 35% 이하로 하였기 때문에, 혼련재료의 두께를 가급적으로 작게 하고, 혼련재료 내부까지 충분히 냉각하는 것을 가능하게 되는 등의 효과를 가진다.In addition, since the gap between the outer circumference of the rotor shaft and the inner wall of the chamber is set to 35% or less of the inner radius of the chamber, the thickness of the kneading material is as small as possible, and the inside of the kneading material can be sufficiently cooled. Have

Claims (3)

혼련재료를 수납하는 챔버, 이 챔버의 상부를 폐쇄하는 가압덮개, 및 챔버 내에 설치된 한쌍의 회전자를 구비한 밀폐식 혼련기에 있어서,In a hermetic kneader having a chamber for storing kneading material, a press cover for closing an upper portion of the chamber, and a pair of rotors provided in the chamber, 상기 회전자는, 회전자 축부의 양측의 단부로부터 타단측으로 향하여, 회전자 축부의 중앙까지의 사이에 걸쳐 형성한 회전자 날개를 각각 구비하고, 이 회전자 날개가 대향하는 회전자 사이에 서로 겹치지 않는 접선방식으로 하며, 챔버 내면반경에 대해서 회전자 축부 반경의 비를 0.65 이상, 회전자 축부 외주면과 챔버 내벽면의 간극을 챔버 내면반경의 35% 이하로 함과 아울러, 회전자 축부 반경에 대해서 회전자 날개의 랜드폭의 비를 0.25 이하로 한 것을 특징으로 하는 밀폐식 혼련기.The rotors each have rotor blades formed from both end portions of the rotor shaft portion to the other end side to the center of the rotor shaft portion, and the rotor blades do not overlap each other between the opposing rotors. It is a tangential type, and the ratio of the radius of the rotor shaft to the inner radius of the chamber is 0.65 or more, the clearance between the outer circumference of the rotor shaft and the inner wall of the chamber is 35% or less of the inner radius of the chamber, A sealed kneader, in which the ratio of the land width of the electromagnetic blades is 0.25 or less. 삭제delete 삭제delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101240859B1 (en) 2009-04-15 2013-03-07 가부시키가이샤 고베 세이코쇼 Closed kneader and kneading rotor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053144A (en) * 1975-05-29 1977-10-11 Usm Corporation Delta rotor through feed mixer
JPS6128432A (en) * 1984-06-26 1986-02-08 フランシス・ソ−・ピ−エルシ− Mixer
US4824256A (en) * 1984-04-02 1989-04-25 Werner & Pfleiderer Co-rotating twin-screw kneaders with kneading disks
JPH06285349A (en) * 1993-04-05 1994-10-11 Kobe Steel Ltd Hermetic type kneading machine
KR970008898A (en) * 1995-07-20 1997-02-24 김광호 Load independent reference voltage generator
KR19980064231A (en) * 1996-12-19 1998-10-07 구마모토마사히로 Hermetic Kneading Device
EP1352725A1 (en) * 2000-10-17 2003-10-15 Moriyama Co., Ltd. Closed kneader

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053144A (en) * 1975-05-29 1977-10-11 Usm Corporation Delta rotor through feed mixer
US4824256A (en) * 1984-04-02 1989-04-25 Werner & Pfleiderer Co-rotating twin-screw kneaders with kneading disks
JPS6128432A (en) * 1984-06-26 1986-02-08 フランシス・ソ−・ピ−エルシ− Mixer
JPH06285349A (en) * 1993-04-05 1994-10-11 Kobe Steel Ltd Hermetic type kneading machine
KR970008898A (en) * 1995-07-20 1997-02-24 김광호 Load independent reference voltage generator
KR19980064231A (en) * 1996-12-19 1998-10-07 구마모토마사히로 Hermetic Kneading Device
EP1352725A1 (en) * 2000-10-17 2003-10-15 Moriyama Co., Ltd. Closed kneader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101240859B1 (en) 2009-04-15 2013-03-07 가부시키가이샤 고베 세이코쇼 Closed kneader and kneading rotor

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