Counter-rotating parallel double-screw extruder capable of improving extrusion yield
阅读说明:本技术 可提高挤出产量的异向平行双螺杆挤出机 (Counter-rotating parallel double-screw extruder capable of improving extrusion yield ) 是由 李哲 李贝茜 石磊 于 2019-10-12 设计创作,主要内容包括:本发明公开了可提高挤出产量的异向平行双螺杆挤出机,包括机架,所述机架的内部安装有减速箱、联轴器和第一电机,所述第一电机的输出轴通过所述联轴器与所述减速箱的输入轴固定连接,所述机架的上表面安装有喂料机,所述喂料机的进料口连通有垂直搅拌料斗,所述喂料机的出料口连通有强制喂料机构;首先将物料倒入垂直搅拌料斗内,物料通过垂直搅拌料斗进入喂料机内,接着通过强制喂料机构导入机筒内,第一电机启动,通过联轴器和减速箱实现大扭矩的功效,带动挤出螺杆转动,挤压物料,配合双罐免停机清理真空机构和合流芯的设置,达到提高挤出机产量,延长机筒的挤出螺杆使用寿命的作用。(The invention discloses a counter-rotating parallel double-screw extruder capable of improving the extrusion yield, which comprises a rack, wherein a reduction gearbox, a coupler and a first motor are arranged inside the rack, an output shaft of the first motor is fixedly connected with an input shaft of the reduction gearbox through the coupler, a feeder is arranged on the upper surface of the rack, a feed inlet of the feeder is communicated with a vertical stirring hopper, and a discharge outlet of the feeder is communicated with a forced feeding mechanism; the material is poured into the vertical stirring hopper, enters the feeding machine through the vertical stirring hopper, is guided into the machine barrel through the forced feeding mechanism, the first motor is started, the effect of large torque is realized through the coupler and the reduction gearbox, the extrusion screw is driven to rotate, the material is extruded, the double-tank shutdown-free cleaning vacuum mechanism is matched with the converging core, and the effects of improving the output of the extruder and prolonging the service life of the extrusion screw of the machine barrel are achieved.)
1. Can improve the parallel twin-screw extruder of incorgruous of extrusion output, including frame (1), its characterized in that: the automatic feeding device is characterized in that a reduction gearbox (2), a coupler (3) and a first motor (4) are installed inside the rack (1), an output shaft of the first motor (4) is fixedly connected with an input shaft of the reduction gearbox (2) through the coupler (3), a feeder (5) is installed on the upper surface of the rack (1), a feed inlet of the feeder (5) is communicated with a vertical stirring hopper (6), a discharge outlet of the feeder (5) is communicated with a forced feeding mechanism (7), a machine barrel (9) is installed below the forced feeding mechanism (7) inside the rack (1), the machine barrel (9) is communicated with a discharge outlet of the forced feeding mechanism (7), a machine barrel electric rear supporting mechanism (8) and a machine barrel front supporting mechanism (12) are installed on two sides of the bottom of the outer side wall of the machine barrel (9) respectively, an extrusion screw (10) is installed inside the machine barrel (9), the machine is characterized in that a double-tank halt-free cleaning vacuum mechanism (11) is arranged below the machine barrel (9), the double-tank halt-free cleaning vacuum mechanism (11) is installed on the inner bottom wall of the machine frame (1), the machine barrel (9) is communicated with the double-tank halt-free cleaning vacuum mechanism (11), and the machine barrel (9) is far away from one end of the forced feeding mechanism (7) and is communicated with a confluence core (13).
2. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the feeder (5) is any one of a double-screw feeder (501) and a single-screw feeder (502).
3. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: perpendicular stirring hopper (6) include hopper (601), second motor (602), pivot (603) and stirring paddle leaf (604), second motor (602) through flange mounting in the upper surface center department of hopper (601), the output shaft of second motor (602) runs through hopper (601), the output shaft of second motor (602) with pivot (603) fixed connection, stirring paddle leaf (604) evenly install in the lateral wall of pivot (603), the bottom of hopper (601) with the feed inlet intercommunication of feeder (5).
4. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the forced feeding mechanism (7) comprises a cylinder body (701), a vertical screw (702), a worm (703), a turbine (704) and a third motor (705), wherein the outer side wall of the cylinder body (701) is communicated with a discharge hole of the feeding machine (5), the third motor (705) is installed at the top of the outer side wall of the cylinder body (701), an output shaft of the third motor (705) penetrates through the cylinder body (701) and is fixedly connected with the turbine (704), the top end of the worm (703) is rotatably connected with the cylinder body (701) through a bearing, the bottom end of the worm (703) is fixedly connected with the vertical screw (702), and the outer side wall of the worm (703) is meshed with the turbine (704).
5. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the outer side wall of the machine barrel (9) is uniformly provided with a first cooling water tank (91).
6. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the extrusion screw (10) comprises a mandrel (1001) and a threaded element (1002), wherein the threaded element (1002) is uniformly sleeved on the outer side wall of the mandrel (1001).
7. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the double-tank shutdown-free cleaning vacuum mechanism (11) comprises a vacuum pump (1101) and a vacuum filtering tank (1102), the vacuum filtering tank (1102) is provided with two, and the output end of the vacuum pump (1101) is respectively communicated with the vacuum filtering tank (1102) through a pipe body and a valve.
8. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: a flow channel (1301) is formed in the confluence core (13), and a second cooling water tank (1302) is formed in one side of the confluence core (13).
9. The counter-rotating parallel twin-screw extruder capable of improving extrusion yield according to claim 1, characterized in that: the length-diameter ratio of the cylinder (9) is 30-35: 1.
Technical Field
The invention belongs to the technical field of floor processing machinery, and particularly relates to a counter-rotating parallel double-screw extruder capable of improving extrusion yield.
Background
Both the LVT plastic floor and the SPC floor are one of PVC floors. The main raw materials are polyvinyl chloride, wood powder, calcium powder and the like. The PVC floor is light, thin, wear-resistant, good in elasticity, fireproof, flame-retardant, water-absorbing, moisture-proof, sound-absorbing and noise-preventing, and is particularly simple, convenient and pollution-free in installation. The development of PVC floor is short for several years, and the PVC floor is developed from a single hard floor manufactured by using a marble-imitated effect to a floor manufactured by using various soft and hard walls, a wood-proof floor, a foaming light floor, an environment-friendly methane-free plastic wood grain floor and the like. Has been generally accepted in large and medium cities at home and abroad, and has wide application.
The process of floor production can be summarized as follows: the raw materials are sheared and meshed by a screw in a cylinder of an extruder under the conditions of high temperature and vacuum negative pressure to form paste (called as plasticization), the paste is shaped and extruded into a sheet shape by a die, the sheet is molded by a calender under the condition of hot state, a layer of film which needs to imitate marble or wood grains is coated on the surface of the sheet, and the linen grain (grains are coated on a lower roller) for sticking glue is pressed on the back of the sheet to be used as a base material. And performing wear-resistant protection treatment on the surface of the UV paint coating production line. And then the substrate is subjected to the sectional slotting treatment by a slotting machine, and finally the finished product is packed.
Therefore, the working efficiency, the service life and the plastification condition of the materials in the machine barrel of the extruder directly determine the quality and the yield of the product. Most of the existing extruders in the market are 92/188 counter-rotating conical twin-screw extruders and 110/220 counter-rotating conical twin-screw extruders, or 115 counter-rotating parallel twin-screw extruders, 130 counter-rotating parallel twin-screw extruders and 135 counter-rotating parallel twin-screw extruders.
The cone twin or flat twin extruder has limited output, the maximum screw center distance of the 135 counter-rotating parallel twin-screw extruder is 110mm, the length-diameter ratio of a machine barrel is 28:1, and the output is 40 tons/day. The remaining yield is smaller. Because the raw materials contain a large amount of calcium powder (calcium carbonate), the hardness of the raw materials is high, a barrel screw is easy to wear, and the raw materials are usually replaced within 3-6 months, so that the cost is too high. Medium and small floor enterprises cannot afford to pay at all. Most of the existing machine barrels are cooled by an external fan, the cooling effect is general, if the machine barrels cannot be cooled in time, the temperature inside the machine barrels is ultrahigh, and the materials are scorched. At this moment, the machine barrel screw needs to be stopped, disassembled and cleaned, and time and labor are wasted. Meanwhile, the power of the main driving motor of the extruder is 132KW, the power is low, the torque is low, the locking condition of the machine barrel screw rod can be caused under the condition of more feeding, the reduction gearbox is damaged, and the service life of the machine barrel screw rod is shortened.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art by providing a counter-rotating parallel twin-screw extruder capable of increasing the extrusion throughput.
In order to achieve the purpose, the invention adopts the following technical scheme: the counter-rotating parallel double-screw extruder capable of improving the extrusion yield comprises a rack, wherein a reduction gearbox, a coupler and a first motor are installed inside the rack, an output shaft of the first motor is fixedly connected with an input shaft of the reduction gearbox through the coupler, a feeding machine is installed on the upper surface of the rack, a feeding hole of the feeding machine is communicated with a vertical stirring hopper, a discharging hole of the feeding machine is communicated with a forced feeding mechanism, a machine barrel is installed inside the rack and below the forced feeding mechanism, the machine barrel is communicated with a discharging hole of the forced feeding mechanism, a machine barrel electric rear supporting mechanism and a machine barrel front supporting mechanism are installed on two sides of the bottom of the outer side wall of the machine barrel respectively, an extrusion screw is installed inside the machine barrel, a double-tank non-stop cleaning vacuum mechanism is installed below the machine barrel, and the double-tank non-stop cleaning vacuum mechanism is installed on the inner bottom wall of, the machine barrel is communicated with the double-tank shutdown-free cleaning vacuum mechanism, and one end of the machine barrel, which is far away from the forced feeding mechanism, is communicated with a confluence core.
Preferably: the feeding machine is any one of a double-screw feeding machine and a single-screw feeding machine.
Preferably: perpendicular stirring hopper includes hopper, second motor, pivot and stirring paddle leaf, the second motor pass through flange mounting in the upper surface center department of hopper, the output shaft of second motor runs through the hopper, the output shaft of second motor with pivot fixed connection, stirring paddle leaf evenly install in the lateral wall of pivot, the bottom of hopper with the feed inlet intercommunication of feeding machine.
Preferably: the forced feeding mechanism comprises a cylinder, a vertical screw, a worm, a turbine and a third motor, wherein the outer side wall of the cylinder is communicated with a discharge hole of the feeding machine, the third motor is arranged at the top of the outer side wall of the cylinder, an output shaft of the third motor penetrates through the cylinder and is fixedly connected with the turbine, the top end of the worm is rotatably connected with the cylinder through a bearing, the bottom end of the worm is fixedly connected with the vertical screw, and the outer side wall of the worm is meshed and connected with the turbine.
Preferably: the outer side wall of the machine barrel is uniformly provided with a first cooling water tank.
Preferably: the extrusion screw comprises a mandrel and a thread element, and the thread element is uniformly sleeved on the outer side wall of the mandrel.
Preferably: the double-tank shutdown-free cleaning vacuum mechanism comprises a vacuum pump and a vacuum filtering tank, wherein the vacuum filtering tank is provided with two vacuum tanks, and the output end of the vacuum pump is communicated with the vacuum filtering tank through a pipe body and a valve respectively.
Preferably: a flow channel is formed in the confluence core, and a second cooling water tank is formed in one side of the confluence core.
Preferably: the length-diameter ratio of the cylinder is 30-35: 1.
the invention has the technical effects and advantages that: compared with the prior art, the counter-rotating parallel double-screw extruder capable of improving the extrusion yield has the following advantages:
the material is poured into the vertical stirring hopper, enters the feeding machine through the vertical stirring hopper, is guided into the machine barrel through the forced feeding mechanism, the first motor is started, the effect of large torque is realized through the coupler and the reduction gearbox, the extrusion screw is driven to rotate, the material is extruded, the double-tank shutdown-free cleaning vacuum mechanism is matched with the converging core, and the effects of improving the output of the extruder and prolonging the service life of the extrusion screw of the machine barrel are achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the frame structure of the present invention;
FIG. 3 is a diagram of the connection mode of the reduction gearbox, the coupling and the first motor of the invention;
FIG. 4 is a schematic view of a feeder according to the present invention;
FIG. 5 is a schematic structural view of a vertical stirring hopper of the present invention, with the direction of the arrow being the material direction;
FIG. 6 is a schematic structural view of a forced feeding mechanism of the present invention, wherein the direction of the arrow is the direction of the material;
FIG. 7 is a view of the connection of the motorized rear barrel support and the front barrel support with the barrel of the present invention, with the direction of the arrows being the disassembly direction;
FIG. 8 is a top view of FIG. 7 with the direction of the arrows showing the removal direction in accordance with the present invention;
FIG. 9 is a schematic view of the extrusion screw structure of the present invention;
FIG. 10 is a schematic structural view of a dual-tank shutdown-free cleaning vacuum mechanism of the present invention;
FIG. 11 is a schematic view of a core of the present invention;
fig. 12 is a left side view of the present invention.
In the figure: 1. a frame; 2. a reduction gearbox; 3. a coupling; 4. a first motor; 5. a feeder; 501. a double screw feeder; 502. a single screw feeder; 6. a vertical stirring hopper; 601. a hopper; 602. a second motor; 603. a rotating shaft; 604. a stirring paddle; 7. a forced feeding mechanism; 701. a barrel; 702. a vertical screw; 703. a worm; 704. a turbine; 705. a third motor; 8. a barrel electric rear support mechanism; 9. a barrel; 91. a first cooling water tank; 10. extruding a screw; 1001. a mandrel; 1002. a threaded element; 11. the double-tank shutdown-free vacuum cleaning mechanism; 1101. a vacuum pump; 1102. a vacuum filtration tank; 12. a barrel front support mechanism; 13. a confluence core; 1301. a flow channel; 1302. a second cooling water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a counter-rotating parallel double-screw extruder capable of improving the extrusion yield as shown in figures 1-12, which comprises a rack 1, wherein a reduction gearbox 2, a coupler 3 and a first motor 4 are arranged in the rack 1, an output shaft of the first motor 4 is fixedly connected with an input shaft of the reduction gearbox 2 through the coupler 3, a feeder 5 is arranged on the upper surface of the rack 1, a feed inlet of the feeder 5 is communicated with a vertical stirring hopper 6, a discharge outlet of the feeder 5 is communicated with a forced feeding mechanism 7, a machine barrel 9 is arranged in the rack 1 below the forced feeding mechanism 7, the machine barrel 9 is communicated with a discharge outlet of the forced feeding mechanism 7, an electric rear supporting mechanism 8 and a machine barrel front supporting mechanism 12 are respectively arranged on two sides of the bottom of the outer side wall of the machine barrel 9, an extrusion screw 10 is arranged in the machine barrel 9, a double-tank halt-free cleaning vacuum mechanism 11 is arranged below the machine barrel 9, the double-tank halt-free cleaning vacuum mechanism 11 is installed on the inner bottom wall of the machine frame 1, the machine barrel 9 is communicated with the double-tank halt-free cleaning vacuum mechanism 11, and one end, far away from the forced feeding mechanism 7, of the machine barrel 9 is communicated with a confluence core 13.
Preferably: the feeder 5 is any one of a double-screw feeder 501 and a single-screw feeder 502; the model of the double-screw feeder 501 is 800 type spherical double screws, the model of the single-screw feeder 502 is 160 type single-screw feeders, by adopting 800 type spherical double-screw feeding, the speed ratio of the feeding motor is 9, the feeding amount reaches 90 tons/day under the condition of full load, the single-screw feeder is suitable for raw materials of fine powder or new materials mixed by a mixer, or the single-screw feeder is replaced by 160 type single-screw feeders, the power of the single-screw feeding motor is 3KW, the speed ratio is 20, the screw diameter is 160mm, the lead is 125mm, the full load output is 60 tons/day, the single-screw feeder is mainly suitable for crushed materials or returned materials after the waste floor is crushed, the double-screw feeder has the advantages that the grinding process of the crushed materials is omitted while the materials are not blocked, the processes are reduced, the equipment is saved, the manpower is saved, the cost is greatly saved, the large output is ensured, different feeders 5 can be selected according to, when the production raw material is large-particle crushed material, a 160 single-screw feeder is used.
Preferably: the
Preferably: the forced
Preferably: the outer side wall of the
Preferably: the
Preferably: the double-tank shutdown-free
Preferably: a
Preferably: the length-diameter ratio of the
In this embodiment: because the existing equipment needs to move the machine barrel screw out of the
In this embodiment: the
The working principle is as follows: firstly, materials are poured into a
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
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