CN105269789A - Hollow single-screw compound co-extrusion machine - Google Patents
Hollow single-screw compound co-extrusion machine Download PDFInfo
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- CN105269789A CN105269789A CN201510703236.6A CN201510703236A CN105269789A CN 105269789 A CN105269789 A CN 105269789A CN 201510703236 A CN201510703236 A CN 201510703236A CN 105269789 A CN105269789 A CN 105269789A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 11
- 238000001125 extrusion Methods 0.000 title description 10
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/51—Screws with internal flow passages, e.g. for molten material
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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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
本发明涉及一种空心单螺杆复合共挤出机，包括电机、传动机构、座子、向心推力轴承组、机筒、空心螺杆、电热圈、挤出机头、第一及第二料斗、齿轮和芯轴；其中所述电机通过传动机构和齿轮带动空心螺杆作旋转运动输送物料，特点是所述芯轴安装在座子上；所述空心螺杆位于机筒内；在所述空心螺杆的内圆孔和外圆上分别设有内螺旋槽及外螺旋槽，在空心螺杆上设有径向料道；所述第一料斗及第二料斗分别设在机筒上，第一料斗通过机筒与外螺旋槽的一端联通，外螺旋槽的另一端与挤出机头的出料口联通；所述第二料斗通过机筒与径向料道联通，所述径向料道与内螺旋槽的一端联通，内螺旋槽的另一端与挤出机头的出料口联通。其优点为：结构简单，制造、使用和维修成本均低，所生产的产品质量好，生产效率高。
The invention relates to a hollow single-screw compound co-extruder, which includes a motor, a transmission mechanism, a seat, a centripetal thrust bearing group, a machine barrel, a hollow screw, an electric heating coil, an extruder head, a first and a second hopper, Gears and mandrels; wherein the motor drives the hollow screw through the transmission mechanism and gears to rotate and transport materials. The feature is that the mandrel is installed on the seat; the hollow screw is located in the barrel; inside the hollow screw The round hole and the outer circle are respectively provided with an inner spiral groove and an outer spiral groove, and a radial material channel is arranged on the hollow screw; the first hopper and the second hopper are respectively arranged on the barrel, and the first hopper passes through the barrel It communicates with one end of the outer spiral groove, and the other end of the outer spiral groove communicates with the discharge port of the extruder head; the second hopper communicates with the radial material channel through the machine barrel, and the radial material channel communicates with the inner spiral groove One end of the internal spiral groove is connected with the other end of the inner spiral groove and the discharge port of the extruder head is connected. Its advantages are: simple structure, low manufacturing, use and maintenance costs, good product quality and high production efficiency.
Description
技术领域 technical field
本发明涉及一种空心单螺杆复合共挤出机，可用于复合管材、复合板材、复合片材以及各类电缆等塑料制品的复合共挤出。 The invention relates to a hollow single-screw composite co-extruder, which can be used for composite co-extrusion of plastic products such as composite pipes, composite plates, composite sheets and various cables.
背景技术 Background technique
复合共挤是将二种以上不同材料进行复合挤出，冷却定型后，使其成为多层制品的一种挤出加工方法。目前，常见的复合共挤材料有复合管材、复合板材、复合片材及光缆电缆等。但现在用于复合共挤出设备通常是由二台以上的的螺杆挤出机组合而成，设备结构复杂、占地面积大及制造成本高，而且，来自不同挤出机的熔融物料要达到生产要求，还需重新进行分配和分布，这就必然影响到制品质量、外观和生产效率。 Composite co-extrusion is an extrusion processing method in which two or more different materials are compositely extruded, and after cooling and shaping, it becomes a multi-layer product. At present, common composite co-extrusion materials include composite pipes, composite sheets, composite sheets, and optical cables. However, the equipment used for compound co-extrusion is usually composed of more than two screw extruders. The equipment structure is complex, the floor area is large and the manufacturing cost is high. Moreover, the molten materials from different extruders must reach Production requirements need to be redistributed and distributed, which will inevitably affect product quality, appearance and production efficiency.
专利ZL200510105781中给出一种解决方案，采用二个同轴的内外螺杆进行复合挤出，部分克服了同时使用二台以上螺杆挤出机进行复合挤出时产生的问题，但其结构仍有值得简化的地方。 A solution is given in patent ZL200510105781, which uses two coaxial internal and external screws for compound extrusion, which partially overcomes the problems caused by using more than two screw extruders for compound extrusion at the same time, but its structure is still worthwhile. simplified place.
发明内容 Contents of the invention
本发明的目的是克服现有技术的不足而提供一种空心单螺杆复合共挤出机，其结构简单，制造、使用和维修成本均低，所生产的产品质量好，生产效率高。 The object of the present invention is to overcome the deficiencies of the prior art and provide a hollow single-screw compound co-extruder, which has simple structure, low manufacturing, use and maintenance costs, good product quality and high production efficiency.
为了达到上述目的，本发明是这样实现的，其是一种空心单螺杆复合共挤出机，包括电机、传动机构、座子、向心推力轴承组、机筒、空心螺杆、电热圈、挤出机头、第一料斗、第二料斗、齿轮和芯轴；其中所述电机通过传动机构和齿轮带动空心螺杆作旋转运动输送物料，挤出机头设在机筒的出料口处；其特征在于所述芯轴安装在座子上，所述空心螺杆位于机筒内，所述芯轴位于空心螺杆内，机筒、空心螺杆和芯轴均同轴；在所述空心螺杆的内圆孔和外圆上分别设有内螺旋槽及外螺旋槽，在空心螺杆上设有径向料道；所述第一料斗及第二料斗分别设在机筒上，第一料斗通过机筒与空心螺杆的外螺旋槽的一端联通，外螺旋槽的另一端与挤出机头的出料口联通；所述第二料斗通过机筒与空心螺杆的径向料道联通，所述径向料道与内螺旋槽的一端联通，内螺旋槽的另一端与挤出机头的出料口联通。 In order to achieve the above object, the present invention is achieved in this way, it is a hollow single-screw compound co-extruder, including motor, transmission mechanism, seat, radial thrust bearing group, machine barrel, hollow screw, electric heating ring, extruder The machine head, the first hopper, the second hopper, the gear and the mandrel; wherein the motor drives the hollow screw through the transmission mechanism and the gear to rotate and transport the material, and the extrusion head is set at the discharge port of the machine barrel; its It is characterized in that the mandrel is installed on the seat, the hollow screw is located in the barrel, the mandrel is located in the hollow screw, the barrel, the hollow screw and the mandrel are all coaxial; the inner circular hole of the hollow screw The inner spiral groove and the outer spiral groove are respectively arranged on the outer circle and the hollow screw rod, and the radial material channel is arranged on the hollow screw rod; the first hopper and the second hopper are respectively arranged on the barrel, and the first hopper passes through the barrel and the hollow screw. One end of the outer helical groove of the screw is connected, and the other end of the outer helical groove is connected with the discharge port of the extruder head; the second hopper is connected with the radial material channel of the hollow screw through the barrel, and the radial material channel It communicates with one end of the inner helical groove, and the other end of the inner helical groove communicates with the discharge port of the extruder head.
在所述空心螺杆的外圆上还设有环形槽，所述环形槽位于第二料斗的出料口与空心螺杆的径向料道之间，环形槽将第二料斗的出料口与空心螺杆的径向料道联通。 An annular groove is also provided on the outer circle of the hollow screw, and the annular groove is located between the discharge port of the second hopper and the radial channel of the hollow screw, and the circular groove connects the discharge port of the second hopper with the hollow The radial channel of the screw is connected.
所述空心螺杆的外螺旋槽与内螺旋槽的旋向相同，螺旋槽旋向既可是左旋，又可是右旋。 The outer helical groove of the hollow screw rod has the same direction of rotation as the inner helical groove, and the helical groove can be either left-handed or right-handed.
所述芯轴可为固定，也可作旋转运动。 The mandrel can be fixed or rotate.
所述空心螺杆可为单头螺杆，也可为多头螺杆。 The hollow screw can be a single-start screw or a multi-start screw.
所述外螺旋槽及内螺旋槽的螺旋槽和螺棱可设计成不同形状的断面型线，也可设计为销钉、屏障头、环形、分离形、槽形、波形。 The spiral grooves and spiral ribs of the outer spiral groove and the inner spiral groove can be designed as cross-sectional profiles of different shapes, and can also be designed as pins, barrier heads, rings, separate shapes, groove shapes, and waves.
本发明与现有技术相比，具有如下优点： Compared with the prior art, the present invention has the following advantages:
当用于双层共挤出不同物料时，由于只有一个螺杆、机筒和一套传动系统，因此简化了结构，减少了设备总量，制造、使用和维修成本均降低，而且由于二种熔融物料共用一个挤出机头，因此可明显减少和降低“接痕线”对制品质量的影响； When used for double-layer co-extrusion of different materials, because there is only one screw, barrel and one set of transmission system, the structure is simplified, the total amount of equipment is reduced, the cost of manufacturing, use and maintenance is reduced, and because the two kinds of melting The materials share one extruder head, so it can significantly reduce and reduce the influence of "scratch lines" on product quality;
当用于挤出同种物料时，由于空心螺杆的内外圆均有螺旋槽，因此输送能力和产量有明显提高，从理论上来说提高了一倍。 When used to extrude the same material, since the inner and outer circles of the hollow screw have spiral grooves, the conveying capacity and output are significantly improved, which is doubled in theory.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式 detailed description
下面结合附图对本发明的具体实施方式作进一步说明。在此需要说明的是，对于这些实施方式的说明用于帮助理解本发明，但并不构成对本发明的限定。此外，下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以互相结合。 The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
在本发明的描述中，术语“第一”及“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。 In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.
如图1所示，其是一种空心单螺杆复合共挤出机，包括电机1、传动机构2、座子3、向心推力轴承组4、机筒5、空心螺杆6、电热圈7、挤出机头8、第一料斗9、第二料斗10、齿轮11和芯轴12，电机1通过传动机构2和齿轮11带动空心螺杆6作旋转运动输送物料，其中所述电机1通过传动机构2和齿轮11带动空心螺杆6作旋转运动输送物料，挤出机头8设在机筒5的出料口处；所述芯轴12安装在座子3上，所述空心螺杆6位于机筒5内，所述芯轴12位于空心螺杆6内，机筒5、空心螺杆6和芯轴12均同轴；所述电热圈7设在机筒5上，电热圈7对机筒5加热；在所述空心螺杆6的内圆孔和外圆上分别设有内螺旋槽602及外螺旋槽601，在空心螺杆6上设有径向料道604；所述第一料斗9及第二料斗10分别设在机筒5上，第一料斗9通过机筒5与空心螺杆的外螺旋槽601的一端联通，外螺旋槽601的另一端与挤出机头8的出料口联通；所述第二料斗10通过机筒5与空心螺杆的径向料道604联通，所述径向料道604与内螺旋槽602的一端联通，内螺旋槽602的另一端与挤出机头8的出料口联通。 As shown in Figure 1, it is a hollow single-screw composite co-extruder, including a motor 1, a transmission mechanism 2, a seat 3, a radial thrust bearing group 4, a barrel 5, a hollow screw 6, a heating coil 7, The extruder head 8, the first hopper 9, the second hopper 10, the gear 11 and the mandrel 12, the motor 1 drives the hollow screw 6 to rotate the material through the transmission mechanism 2 and the gear 11, wherein the motor 1 passes the transmission mechanism 2 and the gear 11 drive the hollow screw 6 to rotate and transport materials, the extruder head 8 is set at the discharge port of the barrel 5; the mandrel 12 is installed on the seat 3, and the hollow screw 6 is located at the barrel 5 Inside, the mandrel 12 is located in the hollow screw 6, and the machine barrel 5, the hollow screw 6 and the mandrel 12 are all coaxial; the electric heating ring 7 is arranged on the machine barrel 5, and the electric heating ring 7 heats the machine barrel 5; The inner hole and the outer circle of the hollow screw 6 are respectively provided with an inner spiral groove 602 and an outer spiral groove 601, and a radial feedway 604 is arranged on the hollow screw 6; the first hopper 9 and the second hopper 10 The first hopper 9 communicates with one end of the outer spiral groove 601 of the hollow screw through the barrel 5, and the other end of the outer spiral groove 601 communicates with the discharge port of the extruder head 8; The second hopper 10 communicates with the radial channel 604 of the hollow screw through the barrel 5, and the radial channel 604 communicates with one end of the inner spiral groove 602, and the other end of the inner spiral groove 602 is connected with the discharge of the extruder head 8. China Unicom.
工作时，空心螺杆6作旋转运动，第一料斗9中的物料通过机筒5的进料口进入外圆螺旋槽601中，然后经过逐级输运进入挤出机头8，与此同时，第二料斗10中的物料通过机筒5进入到径向料道604中，又从径向料道604进入内螺旋槽602，然后沿内螺旋槽602进入挤出机头8。电热圈7套设在机筒5外用于加热物料，而且，在芯轴12的内部也设有电热器以加热内螺旋槽602中的物料，由于电热技术已相对成熟且非本项发明重点所在，故在芯轴12结构示意图中未将电热器画出。 When working, the hollow screw 6 rotates, and the material in the first hopper 9 enters the outer circular spiral groove 601 through the feed port of the barrel 5, and then enters the extruder head 8 through step-by-step transportation. At the same time, The material in the second hopper 10 enters the radial channel 604 through the barrel 5 , enters the inner spiral groove 602 from the radial material channel 604 , and then enters the extruder head 8 along the inner spiral groove 602 . The electric heating ring 7 is set outside the machine barrel 5 for heating the material, and an electric heater is also provided inside the mandrel 12 to heat the material in the inner spiral groove 602. Since the electric heating technology is relatively mature and is not the key point of the present invention , so the electric heater is not drawn in the structural diagram of the mandrel 12 .
在本实施例中，在所述空心螺杆6的外圆上还设有环形槽603，所述环形槽603位于第二料斗10的出料口与径向料道604之间，环形槽603将第二料斗10的出料口与径向料道604联通。 In this embodiment, an annular groove 603 is also provided on the outer circle of the hollow screw 6, and the annular groove 603 is located between the discharge port of the second hopper 10 and the radial channel 604, and the annular groove 603 will The discharge port of the second hopper 10 communicates with the radial channel 604 .
在本实施例中，所述空心螺杆6的外螺旋槽601与内螺旋槽602的旋向相同，螺旋槽旋向既可是左旋，又可是右旋。 In this embodiment, the outer helical groove 601 and the inner helical groove 602 of the hollow screw 6 have the same helical direction, and the helical groove can be either left-handed or right-handed.
在本实施例中，所述芯轴12可为固定，也可作旋转运动。 In this embodiment, the mandrel 12 can be fixed or rotate.
在本实施例中，所述空心螺杆6可为单头螺杆，也可为多头螺杆。 In this embodiment, the hollow screw 6 may be a single-start screw or a multi-start screw.
在本实施例中，所述外螺旋槽601及内螺旋槽602的螺旋槽和螺棱可设计成不同形状的断面型线，也可设计为销钉、屏障头、环形、分离形、槽形、波形。 In this embodiment, the helical grooves and helical edges of the outer helical groove 601 and the inner helical groove 602 can be designed as cross-sectional profiles of different shapes, and can also be designed as pins, barrier heads, rings, separate shapes, groove shapes, waveform.
以上结合附图对本发明的实施方式作出详细说明，但本发明不局限于所描述的实施方式。对于本领域的普通技术人员而言，在不脱离本发明的原理和宗旨的情况下对这些实施方式进行多种变化、修改、替换及变形仍落入在本发明的保护范围内。 The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and deformations to these implementations without departing from the principle and spirit of the present invention still fall within the protection scope of the present invention.
Claims (6)
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Cited By (6)
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| CN105751475A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Hollow single screw extruder with vibrating mandrel |
| CN105904699A (en) * | 2016-04-25 | 2016-08-31 | 顺德职业技术学院 | Outer thread groove type screw extruding device with vibration spindle |
| CN106003658A (en) * | 2016-07-11 | 2016-10-12 | 盐城工学院 | Short-screw double material extruding machine |
| CN106042324A (en) * | 2016-07-11 | 2016-10-26 | 盐城工学院 | Contraposition spiral short screw extruder |
| CN106182686A (en) * | 2016-08-08 | 2016-12-07 | 安庆市汇东机械有限责任公司 | Hollow single screw rod composite co-extruding extruder |
| CN110481011A (en) * | 2019-09-17 | 2019-11-22 | 大理大学 | A kind of printing head and the 3D printer using printing head |
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|---|---|---|---|---|
| CN105751475A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Hollow single screw extruder with vibrating mandrel |
| CN105904699A (en) * | 2016-04-25 | 2016-08-31 | 顺德职业技术学院 | Outer thread groove type screw extruding device with vibration spindle |
| CN106003658A (en) * | 2016-07-11 | 2016-10-12 | 盐城工学院 | Short-screw double material extruding machine |
| CN106042324A (en) * | 2016-07-11 | 2016-10-26 | 盐城工学院 | Contraposition spiral short screw extruder |
| CN106003658B (en) * | 2016-07-11 | 2018-07-03 | 盐城工学院 | A kind of short screw double-material extruder |
| CN106042324B (en) * | 2016-07-11 | 2019-02-26 | 盐城工学院 | An opposed helical short screw extruder |
| CN106182686A (en) * | 2016-08-08 | 2016-12-07 | 安庆市汇东机械有限责任公司 | Hollow single screw rod composite co-extruding extruder |
| CN110481011A (en) * | 2019-09-17 | 2019-11-22 | 大理大学 | A kind of printing head and the 3D printer using printing head |
| CN110481011B (en) * | 2019-09-17 | 2021-06-22 | 大理大学 | A printing nozzle and a 3D printer using the printing nozzle |
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