CN105313302A - Composite co-extrusion machine with single conical hollow screw rod - Google Patents
Composite co-extrusion machine with single conical hollow screw rod Download PDFInfo
- Publication number
- CN105313302A CN105313302A CN201510703152.2A CN201510703152A CN105313302A CN 105313302 A CN105313302 A CN 105313302A CN 201510703152 A CN201510703152 A CN 201510703152A CN 105313302 A CN105313302 A CN 105313302A
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- CN
- China
- Prior art keywords
- screw rod
- conical hollow
- conical
- hollow screw
- hopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- 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
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- 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
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a composite co-extrusion machine with a single conical hollow screw rod. The composite co-extrusion machine comprises a motor, a transmission mechanism, seats, radial thrust bearing sets, a machine barrel, the conical hollow screw rod, an electric heating coil, an extrusion machine head, a first hopper, a second hopper, a gear and a conical spindle, wherein the motor drives the conical hollow screw rod to rotate through the transmission mechanism and the gear so as to convey materials. The composite co-extrusion machine is characterized in that the conical hollow screw rod is located in the machine barrel, and the conical spindle is located in the conical hollow screw rod; an inner conical spiral groove and an outer conical spiral groove are formed in an inner conical hole and an outer conical surface of the conical hollow screw rod respectively, and a radial material channel is formed in the conical hollow screw rod; the first hopper and the second hopper are both arranged on the machine barrel, the first hopper is communicated with one end of the outer conical spiral groove through the machine barrel, and the other end of the outer conical spiral groove is communicated with the extrusion machine head; the second hopper is communicated with the radial material channel through the machine barrel, the radial material channel is communicated with one end of the inner conical spiral groove, and the other end of the inner conical spiral groove is communicated with the extrusion machine head. The composite co-extrusion machine has the advantages that the structure is simple, the manufacturing cost, using cost and repairing cost are all low, produced products are good in quality, and the production efficiency is high.
Description
Technical field
The present invention relates to a kind of conical hollow singe screw co-extrusion machine, can be used for the co-extrusion of the plastic products such as composite pipe, composite board, composite sheet and all kinds of cables.
Background technology
Composite co-extruding is that more than two kinds different materials are carried out compound extruded, and after cooling and shaping, become a kind of extruding process thereof of multi-layer product, composite co-extruding material common at present has composite pipe, composite board, composite sheet and fiber optic cable etc.But now for co-extrusion equipment normally by more than two screw extruder combine, therefore, bring the problems such as the manufacturing cost height that device structure is complicated, floor space is large, and, fused materials from different extruder will reach production requirement, also need to re-start and distribute and distribution, this just must have influence on quality of item, outward appearance and production efficiency.
Provide a solution in patent ZL200510105781, adopt two coaxial interior external screw rods to carry out compound extruded, part overcomes the problem of generation when simultaneously using more than two screw extruders to carry out compound extruded.
And in similar patent ZL201010128512.8, also use the structure of two the coaxial interior external screw rods similar with above-mentioned patent, difference is that the latter is on the basis of improving, screw rod is reformed, cylindrical screw is become circular cone screw rod, thus on original basis, incorporated the more excellent feature of conical screw plasticizing effect.
Above-mentioned two patents, greatly simplify although structurally existing, performance is also improved, and its structure is not still simple structure, also has the place being worth simplifying.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and provide a kind of hollow singe screw co-extrusion machine, its structure is simple, and manufacture, use technology cost is all low, the good product quality produced, production efficiency is high.
In order to achieve the above object, the present invention realizes like this, it is a kind of conical hollow singe screw co-extrusion machine, comprises motor, transmission mechanism, stand, radial thrust bearing group, machine barrel, conical hollow screw rod, electric heating coil, extruder head, the first hopper, the second hopper, gear and taper mandrel; Wherein said motor to be rotated convey materials by transmission mechanism and gear driven conical hollow screw rod, and extruder head is located at the discharge outlet of machine barrel; It is characterized in that described conical hollow screw rod installs location by radial thrust bearing group and stand; Described conical hollow screw rod is positioned at machine barrel and can relatively rotates, and described taper mandrel is located on stand, and taper mandrel is positioned at conical hollow screw rod and can relatively rotates; The inner circle taper hole and outer conical surface of described conical hollow screw rod are respectively equipped with female cone helicla flute and outer cone helicla flute, conical hollow screw rod is provided with radial material road; Described first hopper and the second hopper are all located on machine barrel, described first hopper by outer cone spiral fluted one end UNICOM of machine barrel and conical hollow screw rod, the outer cone spiral fluted other end and extruder head UNICOM; Described second hopper by the radial Liao Dao UNICOM of machine barrel and conical hollow screw rod, the radial direction material road of conical hollow screw rod and female cone spiral fluted one end UNICOM, the female cone spiral fluted other end and extruder head UNICOM.
The outer conical surface of described conical hollow screw rod is provided with cannelure, described cannelure the second hopper discharging opening and radial expect between road, cannelure is by the discharging opening of the second hopper and radial Liao Dao UNICOM.
The outer conical surface helicla flute of described conical hollow screw rod is identical with inner circle taper hole spiral fluted rotation direction; Namely helicla flute can be left-handed, can be dextrorotation again.
The outer conical surface of described conical hollow screw rod and inner circle taper hole can carry out taper and columniform combination, be specially: cylindrical and endoporus can be all taper shape, may also be periphery for conical and endoporus is cylindrical, to may also be periphery be cylindrical and endoporus for conical; Meanwhile, the internal via shape of machine barrel will adapt with the periphery shape of conical hollow screw rod, and the periphery shape of taper mandrel will adapt with the inner circle taper hole face shape of conical hollow screw rod.
Described taper mandrel can be fixing, also can rotate.
Described conical hollow screw rod can be single-head screw, also can be multiple-threaded screw.
The helicla flute of described external spiral groove and inner spiral groove and spiral shell rib can be designed to difform section molded line, also can be designed to pin, barrier head, annular, separation shape, flute profile, waveform.
Compared with prior art, tool has the following advantages in the present invention:
1. when being used for double-layer coextrusion and going out different material, owing to only having a screw rod, machine barrel and a set of transmission system, therefore simplify the structure, decrease equipment total amount, manufacture, use technology cost all reduce, and due to the shared extruder head of two kinds of fused materials, therefore can obviously reduce and reduce " lapping defect line " impact on quality of item;
2., when being used for extruding material of the same race, because the inside and outside circle of cored screw all has helicla flute, therefore conveying capacity and output are significantly improved, and are doubled in theory.
3. because conical screw diameter is larger, there is stronger pulverizing, mixing and mill pressure energy power, therefore pulverizing, mixing and mill pressure effect can obviously be improved, and it is less at the conical screw diameter close to extruder head direction, close to the diameter of common screw, therefore there is again the strong advantage of screw extruder transport capability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.It should be noted that at this, the explanation for these embodiments understands the present invention for helping, but does not form limitation of the invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
In describing the invention, term " first " and " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
As shown in Figure 1, it is a kind of conical hollow singe screw co-extrusion machine, comprises motor 1, transmission mechanism 2, stand 3, radial thrust bearing group 4, machine barrel 5, conical hollow screw rod 6, electric heating coil 7, extruder head 8, first hopper 9, second hopper 10, gear 11 and taper mandrel 12; Wherein said motor 1 drives conical hollow screw rod 6 to rotate convey materials by transmission mechanism 2 and gear 11, and extruder head 8 is located at the discharge outlet of machine barrel 5; Described conical hollow screw rod 6 installs location by radial thrust bearing group 4 and stand 3; Described conical hollow screw rod 6 is positioned at machine barrel 5 and overlaps and can relatively rotate; Described taper mandrel 12 is located on stand 3, and taper mandrel 12 is positioned at conical hollow screw rod 6 and can relatively rotates; Described extruder head 8 is located at the discharge end of machine barrel 5 and UNICOM; The inner circle taper hole and outer conical surface of described conical hollow screw rod 6 are respectively equipped with female cone helicla flute 602 and outer cone helicla flute 601, conical hollow screw rod 6 is provided with radial material road 604; Described first hopper 9 and the second hopper 10 are all located on machine barrel 5, and described first hopper 9 passes through one end UNICOM of the outer cone helicla flute 601 of machine barrel 5 and conical hollow screw rod 6, the other end of outer cone helicla flute 601 and extruder head 8 UNICOM; Described second hopper 10 is by radial Liao Dao 604 UNICOM of machine barrel 5 with conical hollow screw rod 6, and described radial direction expects one end UNICOM of road 604 and female cone helicla flute 602, the other end of female cone helicla flute 602 and extruder head 8 UNICOM.In the present embodiment, conical hollow screw rod 6 is minimum near the position diameter of machine barrel 5 discharge end, and conical hollow screw rod 6 is near the position largest diameter of the first hopper 9 and the second hopper 10; The shape of taper mandrel 12 and the female cone hole shape of conical hollow screw rod 6 adapt.
During work, cored screw 6 rotates, material in first hopper 9 enters into cylindrical helicla flute 601 by the charging aperture of machine barrel 5, then extruder head 8 is entered through transporting step by step, meanwhile, material in second hopper 10 enters into cannelure 603 and radial material road 604 by the charging aperture of machine barrel 5, and material enters endoporus helicla flute 602 by radial material road 604 again, then enters extruder head 8 along inner spiral groove 602.It is outer for heated material that electric heating coil 7 is set in machine barrel 5, and, also be provided with electric heater in the inside of taper mandrel 12 to heat the material in inner spiral groove 602, due to electroheat technology relative maturity and non-this invention emphasis place, therefore electric heater do not drawn in taper mandrel 12 structural representation.
In the present embodiment, the outer conical surface of described conical hollow screw rod 6 is provided with cannelure 603, described cannelure 603 the second hopper 10 discharging opening and radial expect between road 604, cannelure 603 is by the discharging opening of the second hopper 10 and radial Liao Dao 604 UNICOM.
In the present embodiment, the outer conical surface helicla flute 601 of described conical hollow screw rod 6 is identical with the rotation direction of inner circle taper hole helicla flute 602, and namely helicla flute can be left-handed, can be dextrorotation again.
In the present embodiment, the outer conical surface of described conical hollow screw rod 6 and inner circle taper hole can carry out taper and columniform combination, be specially: cylindrical and endoporus can be all taper shape, may also be periphery for conical and endoporus is cylindrical, to may also be periphery be cylindrical and endoporus for conical; Meanwhile, the internal via shape of machine barrel will adapt with the periphery shape of conical hollow screw rod 6, and the periphery shape of taper mandrel will adapt with the inner circle taper hole face shape of conical hollow screw rod 6.
In the present embodiment, described taper mandrel 12 can be fixing, also can rotate.
In the present embodiment, described conical hollow screw rod 6 can be single-head screw, also can be multiple-threaded screw.
In the present embodiment, the helicla flute of described external spiral groove 601 and inner spiral groove 602 and spiral shell rib can be designed to difform section molded line, also can be designed to pin, barrier head, annular, separation shape, flute profile, waveform.
Below by reference to the accompanying drawings detailed description is made to embodiments of the present invention, but the present invention is not limited to described embodiment.For the ordinary skill in the art, carry out multiple change, amendment, replacement and distortion when not departing from principle of the present invention and aim to these embodiments still to fall within protection scope of the present invention.
Claims (7)
1. a conical hollow singe screw co-extrusion machine, comprises motor (1), transmission mechanism (2), stand (3), radial thrust bearing group (4), machine barrel (5), conical hollow screw rod (6), electric heating coil (7), extruder head (8), the first hopper (9), the second hopper (10), gear (11) and taper mandrel (12); Wherein said motor (1) drives conical hollow screw rod (6) to rotate convey materials by transmission mechanism (2) and gear (11), and extruder head (8) is located at the discharge outlet of machine barrel (5); It is characterized in that described conical hollow screw rod (6) installs location by radial thrust bearing group (4) and stand (3); Described conical hollow screw rod (6) is positioned at machine barrel (5) and can relatively rotates, and described taper mandrel (12) is located on stand (3), and taper mandrel (12) is positioned at conical hollow screw rod (6) and can relatively rotates; The inner circle taper hole and outer conical surface of described conical hollow screw rod (6) are respectively equipped with female cone helicla flute (602) and outer cone helicla flute (601), conical hollow screw rod (6) is provided with radial material road (604); Described first hopper (9) and the second hopper (10) are all located on machine barrel (5), described first hopper (9) by one end UNICOM of the outer cone helicla flute (601) of machine barrel (5) and conical hollow screw rod (6), the other end of outer cone helicla flute (601) and extruder head (8) UNICOM; Described second hopper (10) is by radial direction material road (604) UNICOM of machine barrel (5) with conical hollow screw rod (6), the radial direction material road (604) of conical hollow screw rod (6) and one end UNICOM of female cone helicla flute (602), the other end of female cone helicla flute (602) and extruder head (8) UNICOM.
2. conical hollow singe screw co-extrusion machine according to claim 1, it is characterized in that being provided with cannelure (603) in the outer conical surface of described conical hollow screw rod (6), described cannelure (603) is positioned between the discharging opening of the second hopper (10) and the radial direction material road (604) of conical hollow screw rod (6), and the discharging opening of the second hopper (10) is expected road (604) UNICOM with radial by cannelure (603).
3. conical hollow singe screw co-extrusion machine according to claim 1, is characterized in that the outer conical surface helicla flute (601) of described conical hollow screw rod (6) is identical with the rotation direction of inner circle taper hole helicla flute (602); Namely helicla flute can be left-handed, can be dextrorotation again.
4. conical hollow singe screw co-extrusion machine according to claim 1, it is characterized in that outer conical surface and the inner circle taper hole of described conical hollow screw rod (6) can carry out taper and columniform combination, be specially: cylindrical and endoporus can be all taper shape, may also be periphery for conical and endoporus is cylindrical, to may also be periphery be cylindrical and endoporus for conical; Meanwhile, the internal via shape of machine barrel (5) will adapt with the periphery shape of conical hollow screw rod (6), and the periphery shape of taper mandrel (12) will adapt with the inner circle taper hole face shape of conical hollow screw rod (6).
5. conical hollow singe screw co-extrusion machine according to claim 1, is characterized in that described taper mandrel (12) can be fixing, also can rotate.
6. conical hollow singe screw co-extrusion machine according to claim 1, is characterized in that described conical hollow screw rod (6) can be single-head screw, also can be multiple-threaded screw.
7. conical hollow singe screw co-extrusion machine according to claim 1, it is characterized in that helicla flute and the spiral shell rib of described external spiral groove (601) and inner spiral groove (602) can be designed to difform section molded line, also can be designed to pin, barrier head, annular, separation shape, flute profile, waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703152.2A CN105313302A (en) | 2015-10-27 | 2015-10-27 | Composite co-extrusion machine with single conical hollow screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703152.2A CN105313302A (en) | 2015-10-27 | 2015-10-27 | Composite co-extrusion machine with single conical hollow screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105313302A true CN105313302A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510703152.2A Pending CN105313302A (en) | 2015-10-27 | 2015-10-27 | Composite co-extrusion machine with single conical hollow screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105313302A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1059595A (en) * | 1962-10-11 | 1967-02-22 | Dynamit Nobel Ag | Improvements in or relating to worm extruders |
| US4859068A (en) * | 1987-06-30 | 1989-08-22 | Societa' Cavi Pirelli S.P.A. | Screw type extruder with flow chambers externally and internally of screw |
| CN101786326A (en) * | 2010-03-22 | 2010-07-28 | 北京化工大学 | Integrated extrusion molding and injection molding machine |
| CN205219683U (en) * | 2015-10-27 | 2016-05-11 | 顺德职业技术学院 | Compound coextrusion machine of hollow single screw rod of toper |
-
2015
- 2015-10-27 CN CN201510703152.2A patent/CN105313302A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1059595A (en) * | 1962-10-11 | 1967-02-22 | Dynamit Nobel Ag | Improvements in or relating to worm extruders |
| US4859068A (en) * | 1987-06-30 | 1989-08-22 | Societa' Cavi Pirelli S.P.A. | Screw type extruder with flow chambers externally and internally of screw |
| CN101786326A (en) * | 2010-03-22 | 2010-07-28 | 北京化工大学 | Integrated extrusion molding and injection molding machine |
| CN205219683U (en) * | 2015-10-27 | 2016-05-11 | 顺德职业技术学院 | Compound coextrusion machine of hollow single screw rod of toper |
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Application publication date: 20160210 |
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