CN116080035A

CN116080035A - Single screw extruder

Info

Publication number: CN116080035A
Application number: CN202210049280.XA
Authority: CN
Inventors: 刘越
Original assignee: Chengdu Chuanlu Plastic Group Co ltd
Current assignee: Chengdu Chuanlu Plastic Group Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2023-05-09

Abstract

The invention provides a single-screw extruder, which comprises a bottom plate, wherein an extrusion cylinder is arranged above the bottom plate, a stirring box is arranged above the extrusion cylinder, a first motor is arranged at the top end of the stirring box through a fixed plate, a first stirring shaft is connected to an output shaft of the first motor, a stirring frame and a plurality of first stirring rods connected with the inner side walls of the stirring frame are arranged on the outer side surface of the first stirring shaft, and the bottom end of the first stirring shaft penetrates through the stirring box through a first bearing and extends into the stirring box; the invention has the following beneficial effects: the output shaft of the first motor rotates to drive the first stirring shaft to rotate, so that the stirring frame, the first stirring rod and the driving bevel gear are driven to rotate, the driven bevel gear is driven to rotate, the second stirring shaft is driven to rotate, and finally the second stirring rod is driven to rotate to sufficiently crush plastic raw materials entering the extrusion barrel, so that the problem that a feeding pipe of a single-screw extruder is blocked due to the fact that the plastic raw materials are too large can be primarily solved.

Description

Single screw extruder

Technical Field

The invention relates to the technical field of extruders, in particular to a single-screw extruder.

Background

The plastic is a high molecular compound polymerized by polyaddition or polycondensation reaction with medium deformation resistance between fiber and rubber, and is composed of synthetic resin, filler, plasticizer, stabilizer, lubricant, pigment and other additives, and an extruder is needed in the process of processing the plastic.

But single screw extruder for plastics production line that uses at present because the plastics raw materials is bigger when the feeding to plug single screw extruder's inlet pipe, thereby lead to the extruder operation unstable, the plastics raw materials of extrusion warp easily, thereby make plastics shaping quality poor, reduced the extruder work, be inconvenient for the staff to use and operate.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a single screw extruder for solving the problem that the feed pipe of the single screw extruder is easily blocked in the prior art.

In order to achieve the above object and other related objects, the invention provides a single screw extruder, which comprises a bottom plate, an extruding cylinder is arranged above the bottom plate, a stirring box is arranged above the extruding cylinder, a first motor is arranged at the top end of the stirring box through a fixing plate, a first stirring shaft is connected to an output shaft of the first motor, a stirring frame and a plurality of first stirring rods connected with the inner side wall of the stirring frame are arranged on the outer side surface of the first stirring shaft, the bottom end of the first stirring shaft penetrates through the stirring box through a first bearing and extends into the stirring box, fixing frames are arranged on the front side and the rear side of the inner wall of the stirring box, a driving bevel gear and a driven bevel gear are arranged in the fixing frames, the bottom end of the first stirring shaft penetrates through the fixing frames through a second bearing and is connected with the driving bevel gear, the driving bevel gear and the driven bevel gear are meshed with each other, a second stirring shaft is arranged in the driven bevel gear in a penetrating mode, and the left end and the right end of the second stirring shaft penetrates through the fixing frames through a third bearing and a plurality of second stirring rods are arranged on the outer side surface of the second stirring shaft.

In an embodiment of the invention, the left end and the right end of the second rotating shaft are both connected in the stirring box through fourth bearings, a first discharging pipe is arranged at the bottom end of the stirring box, a feeding pipe positioned under the first discharging pipe is arranged at the top side of the extrusion cylinder, and the first discharging pipe is communicated with the feeding pipe.

In an embodiment of the present invention, a material-dispersing mechanism is disposed on a top side of the extrusion barrel, the material-dispersing mechanism includes a second motor, a material-dispersing shaft, a material-dispersing frame, and a plurality of material-dispersing rods connected to an inner side wall of the material-dispersing frame, an output shaft of the second motor is connected to the material-dispersing shaft, a left end of the material-dispersing shaft passes through the feeding pipe through a fifth bearing and extends into the feeding pipe, lateral ends of the material-dispersing frame and the material-dispersing rods are connected to the material-dispersing shaft, and a left end of the material-dispersing shaft is connected to the feeding pipe through a sixth bearing.

In an embodiment of the invention, a fixed seat connected with the extrusion cylinder is connected to the top side of the bottom plate through a support column, a partition plate is arranged in the fixed seat, the partition plate divides the inner wall of the fixed seat into a first groove and a second groove, a third motor is arranged in the first groove, an output shaft of the third motor is connected with a driving wheel, the driving wheel is connected with a driven wheel through belt transmission, a screw rod is connected to the side surface of the driven wheel, the right end of the screw rod penetrates through the extrusion cylinder through a seventh bearing and extends into the extrusion cylinder, and a screw blade is arranged on the outer side surface of the screw rod.

In an embodiment of the invention, the right end of the screw rod is connected in the extrusion cylinder through an eighth bearing, a second discharging pipe positioned on the right of the fixing seat is arranged at the bottom side of the extrusion cylinder, a material receiving barrel positioned under the second discharging pipe is arranged at the top side of the bottom plate, and the second discharging pipe is communicated with the material receiving barrel.

In an embodiment of the invention, the left side of the stirring box is connected with the fixed seat through a first supporting rod, the right side of the stirring box is connected with the extrusion cylinder through a second supporting rod, and the front sides of the stirring box and the extrusion cylinder are provided with the observation window.

In an embodiment of the invention, electromagnetic valves are arranged on the front sides of the first discharging pipe and the second discharging pipe, a box door is rotatably connected to the front side of the second groove through a hinge, and a handle is arranged on the surface of the box door.

In an embodiment of the present invention, a heater is installed in the extrusion barrel, a controller and a button switch are disposed on the front side of the fixing seat, the button switch is electrically connected with the controller through a wire, and the controller is electrically connected with the first motor, the second motor, the third motor and the heater through wires.

As described above, the single screw extruder of the present invention has the following beneficial effects:

1. according to the invention, the output shaft of the first motor rotates to drive the first stirring shaft to rotate, so that the stirring frame, the first stirring rod and the driving bevel gear are driven to rotate, then the driven bevel gear is driven to rotate, so that the second stirring shaft is driven to rotate, and finally the second stirring rod is driven to rotate, so that the plastic raw materials entering the extrusion cylinder can be sufficiently crushed, and the problem that the feeding pipe of the single-screw extruder is blocked due to the fact that the plastic raw materials are too large can be primarily solved.

2. According to the invention, the material-dredging shaft is driven to rotate by the rotation of the output shaft of the second motor, so that the material-dredging frame and the material-dredging rod are driven to rotate, the plastic raw material blocked in the material-feeding pipe can be driven downwards, the flow of the plastic raw material in the material-feeding pipe is quickened, the effect of dredging the plastic raw material is achieved, the material-feeding pipe of the extrusion cylinder can be further prevented from being blocked, the extruder can be continuously produced, the working efficiency of the extruder is improved, and the operation of workers is facilitated.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of a single screw extruder disclosed in an embodiment of the present invention;

FIG. 2 is a schematic front view of a single screw extruder disclosed in an embodiment of the present invention;

FIG. 3 is a schematic front view of a material evacuation mechanism of a single screw extruder disclosed in an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the single screw extruder disclosed in the examples of the present invention at A in FIG. 1;

fig. 5 shows an enlarged schematic view at B in fig. 1 in a single screw extruder disclosed in an embodiment of the present invention.

Description of element reference numerals

1. A bottom plate; 2. a support column; 3. a fixing seat; 4. a third motor; 5. a driving wheel; 6. a partition plate; 7. a belt; 8. driven wheel; 9. a first support bar; 10. a stirring tank; 11. a second stirring rod; 12. a stirring frame; 13. a first stirring rod; 14. a second support bar; 15. a first discharge pipe; 16. a feed pipe; 17. a material thinning mechanism; 1701. a second motor; 1702. a material thinning shaft; 1703. a material thinning frame; 1704. a material thinning rod; 18. an extrusion barrel; 19. a screw rod; 20. spiral leaves; 21. a second discharge pipe; 22. receiving a charging basket; 23. a controller; 24. a push button switch; 25. an observation window; 26. a door; 27. a fixing plate; 28. a first motor; 29. a first stirring shaft; 30. a fixed frame; 31. a drive bevel gear; 32. a driven bevel gear; 33. a second stirring shaft; 34. a heater.

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.

Referring to fig. 1, 2, 4 and 5, the present invention provides a single screw extruder, which comprises a bottom plate 1, wherein an extrusion cylinder 18 is arranged above the bottom plate 1, a stirring box 10 is arranged above the extrusion cylinder 18, a first motor 28 is installed at the top end of the stirring box 10 through a fixing plate 27, a first stirring shaft 29 is connected to an output shaft of the first motor 28, a stirring frame 12 and a plurality of first stirring rods 13 connected with the inner side wall of the stirring frame 12 are arranged at the outer side surface of the first stirring shaft 29, the bottom end of the first stirring shaft 29 penetrates through the stirring box 10 through a first bearing and extends into the stirring box 10, a fixed frame 30 is installed at the front side and the rear side of the inner wall of the stirring box 10, a driving bevel gear 31 and a driven bevel gear 32 are arranged in the fixed frame 30, the bottom end of the first stirring shaft 29 penetrates through the fixed frame 30 through a second bearing and is connected with the driving bevel gear 31, and the driving bevel gear 31 is meshed with the driven bevel gear 32;

a second stirring shaft 33 is arranged in the driven bevel gear 32 in a penetrating way, the left end and the right end of the second stirring shaft 33 penetrate through the fixed frame 30 through a third bearing, a plurality of second stirring rods 11 are arranged on the outer side face of the second stirring shaft 33, the left end and the right end of the second rotating shaft are connected in the stirring box 10 through a fourth bearing, a first discharging pipe 15 is arranged at the bottom end of the stirring box 10, a feeding pipe 16 positioned right below the first discharging pipe 15 is arranged on the top side of the extruding cylinder 18, the first discharging pipe 15 is communicated with the feeding pipe 16, the left side of the stirring box 10 is connected with the fixed seat 3 through a first supporting rod 9, the right side of the stirring box 10 is connected with the extruding cylinder 18 through a second supporting rod 14, and an observation window 25 is arranged on the front sides of the stirring box 10 and the extruding cylinder 18;

specifically, the number of stirring frames 12 is two, the number of the first stirring shafts 29 and the second stirring shafts 33 is four, two feeding holes are further formed in the top end of the stirring box 10, when plastic raw materials need to be processed, the plastic raw materials are poured into the stirring box 10 through the feeding holes, then the output shaft of the first motor 28 rotates to drive the first stirring shafts 29 to rotate, so that the stirring frames 12, the first stirring rods 13 and the driving bevel gears 31 are driven to rotate, then the driven bevel gears 32 are driven to rotate, the second stirring shafts 33 are driven to rotate, finally the second stirring rods 11 are driven to rotate, the plastic raw materials entering the extrusion barrel 18 can be sufficiently crushed, and the problem that the feeding pipe 16 of the single-screw extruder is blocked by the plastic raw materials is primarily solved.

In still a further embodiment, referring to fig. 1, 2 and 3, a material-dispersing mechanism 17 is disposed on the top side of the extruding tube 18, the material-dispersing mechanism 17 includes a second motor 1701, a material-dispersing shaft 1702, a material-dispersing frame 1703 and a plurality of material-dispersing rods 1704 connected to the inner side wall of the material-dispersing frame 1703, the output shaft of the second motor 1701 is connected to the material-dispersing shaft 1702, the left end of the material-dispersing shaft 1702 passes through the feeding tube 16 through a fifth bearing and extends into the feeding tube 16, the material-dispersing frame 1703 and the side ends of the material-dispersing rods 1704 are connected to the material-dispersing shaft 1702, and the left end of the material-dispersing shaft 1702 is connected to the feeding tube 16 through a sixth bearing, specifically, after the plastic material in the stirring tank 10 is sufficiently crushed, then falls into the feeding port through the first feeding tube 16, in order to accelerate the flow of the plastic material in the feeding tube 16, the output shaft of the second motor 1701 rotates to drive the material-dispersing shaft 1703 and the material-dispersing rod 1704 to rotate, so that the plastic material blocked in the feeding tube 16 can be driven down by the rotation of the material-dispersing frame 1703, and the plastic material blocked in the feeding tube 16, thereby further preventing the extrusion tube 18 from being blocked.

In a further embodiment, referring to fig. 1 and 2, a fixed seat 3 connected with an extrusion cylinder 18 is connected to the top side of a bottom plate 1 through a support column 2, a partition plate 6 is arranged in the fixed seat 3, the partition plate 6 divides the inner wall of the fixed seat 3 into a first groove and a second groove, a third motor 4 is installed in the first groove, a driving wheel 5 is connected to an output shaft of the third motor 4, the driving wheel 5 is connected with a driven wheel 8 through a belt 7 in a transmission manner, a spiral rod 19 is connected to the side surface of the driven wheel 8, the right end of the spiral rod 19 passes through the extrusion cylinder 18 through a seventh bearing and extends into the extrusion cylinder 18, a spiral blade 20 is arranged on the outer side surface of the spiral rod 19, and the right end of the spiral rod 19 is connected in the extrusion cylinder 18 through an eighth bearing;

the bottom side of the extrusion barrel 18 is provided with a second discharging pipe 21 positioned on the right side of the fixed seat 3, the top side of the bottom plate 1 is provided with a material receiving barrel 22 positioned under the second discharging pipe 21, the second discharging pipe 21 is communicated with the material receiving barrel 22, the front sides of the first discharging pipe 15 and the second discharging pipe 21 are respectively provided with an electromagnetic valve, the front sides of the second grooves are rotationally connected with a box door 26 through hinges, the surface of the box door 26 is provided with a handle, and specifically, when crushed plastic raw materials enter the extrusion barrel 18 through the material feeding pipe 16, the output shaft of the third motor 4 rotates to drive the spiral rod 19 to rotate so as to drive the spiral blade 20 to rotate, and the crushed plastic raw materials are conveyed to the second discharging pipe 21 and fall into the material receiving barrel 22 through the second discharging pipe 21.

In a further embodiment, referring to fig. 1 and 2, a heater 34 is installed in the extrusion barrel 18, a controller 23 and a button switch 24 are disposed on the front side of the fixing base 3, the button switch 24 is electrically connected with the controller 23 through wires, the controller 23 is electrically connected with the first motor 28, the second motor 1701, the third motor 4 and the heater 34 through wires, specifically, the heater 34 can heat the plastic raw material in the extrusion barrel 18, the button switch 24 can control the controller 23 to be turned on and off, and the controller 23 can control the first motor 28, the second motor 1701, the third motor 4 and the heater 34 to be turned on and off.

In summary, the output shaft of the first motor 28 rotates to drive the first stirring shaft 29 to rotate, so as to drive the stirring frame 12, the first stirring rod 13 and the driving bevel gear 31 to rotate, then drive the driven bevel gear 32 to rotate, so as to drive the second stirring shaft 33 to rotate, and finally drive the second stirring rod 11 to rotate, so that the plastic raw material entering the extrusion barrel 18 can be sufficiently crushed, and the problem that the feeding pipe 16 of the single-screw extruder is blocked due to the fact that the plastic raw material is too large can be primarily solved; the output shaft of the second motor 1701 rotates to drive the material-thinning shaft 1702 to rotate, so that the material-thinning frame 1703 and the material-thinning rod 1704 are driven to rotate to drive the plastic raw material blocked in the feeding pipe 16 downwards, the flow of the plastic raw material in the feeding pipe 16 is quickened, the effect of dredging the plastic raw material is achieved, the feeding pipe 16 of the extrusion barrel 18 can be further prevented from being blocked, the extruder can be continuously produced, the working efficiency of the extruder is improved, and workers can operate conveniently. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A single screw extruder comprising a base plate, characterized in that: the utility model discloses a stirring device for a solid-state machine, including bottom plate, fixed frame, driven bevel gear, stirring shaft, fixed frame, driving bevel gear, driven bevel gear, fixed frame and driven bevel gear, the top of extruding the section of thick bamboo is equipped with the extrusion tube, the top of extruding the section of thick bamboo is equipped with the stirring tank, the first motor is installed on the top of stirring tank through the fixed plate, be connected with first (mixing) shaft on the output shaft of first motor, the lateral surface of first (mixing) shaft is equipped with stirring frame and a plurality of first puddler that are connected with stirring frame inside wall, the bottom of first (mixing) shaft passes the stirring tank through first bearing and extends to the stirring tank in, just fixed frame is installed to the front and back both sides of stirring tank inner wall, be equipped with driving bevel gear and driven bevel gear in the fixed frame, driving bevel gear and driven bevel gear intermesh, wear to be equipped with the second (mixing) shaft in the driven bevel gear, both ends all pass the fixed frame through the third bearing, just the lateral surface of second (mixing) shaft is equipped with a plurality of second puddler.

2. A single screw extruder as claimed in claim 1, wherein: the left end and the right end of the second rotating shaft are connected in the stirring box through fourth bearings, a first discharging pipe is arranged at the bottom end of the stirring box, a feeding pipe located right below the first discharging pipe is arranged at the top side of the extrusion barrel, and the first discharging pipe is communicated with the feeding pipe.

3. A single screw extruder as claimed in claim 2, wherein: the top side of the extrusion cylinder is provided with a material-dispersing mechanism, the material-dispersing mechanism comprises a second motor, a material-dispersing shaft, a material-dispersing frame and a plurality of material-dispersing rods connected with the inner side wall of the material-dispersing frame, an output shaft of the second motor is connected with the material-dispersing shaft, the left end of the material-dispersing shaft penetrates through the feeding pipe through a fifth bearing and extends into the feeding pipe, the side ends of the material-dispersing frame and the material-dispersing rods are connected onto the material-dispersing shaft, and the left end of the material-dispersing shaft is connected into the feeding pipe through a sixth bearing.

4. A single screw extruder as claimed in claim 3, wherein: the top side of bottom plate is connected with the fixing base of being connected with the extrusion barrel through the support column, be equipped with the baffle in the fixing base, the baffle is cut apart into first recess and second recess with the inner wall of fixing base, install the third motor in the first recess, be connected with the action wheel on the output shaft of third motor, the action wheel is connected with from the driving wheel through belt drive, the side from the driving wheel is connected with the hob, the right-hand member of hob passes the extrusion barrel through seventh bearing and extends to in the extrusion barrel, the lateral surface of hob is equipped with the spiral leaf.

5. A single screw extruder as claimed in claim 4, wherein: the right-hand member of hob is connected in the extrusion section of thick bamboo through eighth bearing, the bottom side of extrusion section of thick bamboo is equipped with the second discharging pipe that is located the fixing base right-hand, the top side of bottom plate is equipped with the material receiving bucket that is located under the second discharging pipe, the second discharging pipe is linked together with material receiving bucket.

6. A single screw extruder as claimed in claim 4, wherein: the left side of agitator tank is connected with the fixing base through first bracing piece, the right side of agitator tank is connected with the extrusion section of thick bamboo through the second bracing piece, the observation window is installed to the front side of agitator tank and extrusion section of thick bamboo.

7. A single screw extruder as claimed in claim 5, wherein: the front sides of the first discharging pipe and the second discharging pipe are respectively provided with an electromagnetic valve, the front side of the second groove is rotationally connected with a box door through a hinge, and the surface of the box door is provided with a handle.

8. A single screw extruder as claimed in claim 4, wherein: the heater is installed in the extrusion cylinder, a controller and a button switch are arranged on the front side of the fixing seat, the button switch is electrically connected with the controller through a wire, and the controller is electrically connected with the first motor, the second motor, the third motor and the heater through wires.