CN210308948U

CN210308948U - High-speed single screw extruder

Info

Publication number: CN210308948U
Application number: CN201920733100.3U
Authority: CN
Inventors: 何沛江
Original assignee: Dongguan San U Plastic Machinery Co ltd
Current assignee: Dongguan San U Plastic Machinery Co ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-04-14
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a high-speed single screw extruder, including base, funnel feeding case and heat dissipation mechanism, the upper end fixed mounting of base has the arc heater, the inside of barrel is provided with the screw rod, the other end fixed mounting of first shaft coupling has first motor, and the top of first motor is provided with the encoder, the feed inlet has been seted up to the upper surface of barrel, funnel feeding case is located the upper end of feed inlet, heat dissipation mechanism is located the top in discharge gate mould groove. This high-speed single screw extruder passes through the second motor, the second shaft coupling, mutually support between mobile jib and the puddler for get into the inside material volume of barrel less, avoid bold material to lead to the fact the jam to the barrel is inside, the device passes through the gag lever post, mutually supports between concave bar and the ring frame, has reduced the whole focus of funnel feeding case, avoids funnel feeding case to appear the light phenomenon of head and foot, thereby has improved the stability of being connected between funnel feeding case and the barrel.

Description

High-speed single screw extruder

Technical Field

The utility model relates to a screw extruder equipment technical field specifically is a high-speed single screw extruder.

Background

The screw extruder depends on the pressure and shearing force generated by the rotation of the screw, can fully plasticize and uniformly mix materials, and is formed through a die, the plastic extruder can be basically classified into a double-screw extruder, a single-screw extruder, a rare multi-screw extruder and a non-screw extruder, the single-screw extruder is used as common extruder equipment and is mostly used in the plastic processing industry, the single-screw extruder is mainly used for extruding thermoplastic plastics such as soft and hard polyvinyl chloride, polyethylene and the like, and is matched with corresponding auxiliary machines (including forming machine heads) to process various plastic products such as films, pipes, plates, ribbons and the like and can also be used for granulation.

The upper end volume of funnel feeding case is far greater than its lower extreme volume among current single screw extruder for the light phenomenon of first heavy foot appears easily in funnel feeding case, is unfavorable for the stable installation of funnel feeding case, and secondly general barrel inner space is less, and the material takes place to block up easily in transmission process, to above-mentioned problem, we have provided a high-speed single screw extruder.

Disclosure of Invention

An object of the utility model is to provide a high-speed single screw extruder to the upper end volume that proposes general single screw extruder middle funnel feeding case among the solution above-mentioned background art is far more than its lower extreme volume, makes the light phenomenon of heavy foot appear easily in funnel feeding case, is unfavorable for the stable installation of funnel feeding case, and secondly general barrel inner space is less, and the material takes place the problem of jam in transmission course easily.

In order to achieve the above object, the utility model provides a following technical scheme: a high-speed single-screw extruder comprises a base, a funnel feeding box and a heat dissipation mechanism, wherein an arc-shaped heater is fixedly mounted at the upper end of the base, a machine barrel is mounted above the arc-shaped heater, a screw is arranged in the machine barrel, the right end of the screw is connected with one end of a first coupler, a first motor is fixedly mounted at the other end of the first coupler, an encoder is arranged above the first motor, a feeding hole is formed in the upper surface of the machine barrel, the funnel feeding box is located at the upper end of the feeding hole, a second motor is fixedly mounted on the outer side of the funnel feeding box, the outlet end of the second motor is connected with one end of a second coupler, the other end of the second coupler is connected with a main rod, stirring rods are distributed on the outer side of the main rod in an arrayed manner, a ring frame is arranged above the second motor, and the outer surface of the, the lower extreme of gag lever post runs through there is the concave pole, discharge gate mould groove is installed in the left end integration of barrel, heat dissipation mechanism is located the top in discharge gate mould groove.

Preferably, the first motor is connected with the screw through a first coupler, a semi-surrounding structure is formed between the arc-shaped heater and the machine barrel, and the arc-shaped heater is made of cast aluminum.

Preferably, the second motor passes through to constitute rotating-structure between second shaft coupling and the mobile jib, and the puddler is along the vertical direction evenly distributed of mobile jib, moreover between the puddler about the vertical central line symmetry of mobile jib.

Preferably, laminate mutually between the internal surface of ring frame and the surface of funnel feeding case upper end, and the gag lever post is triangular distribution along the external surface of ring frame, and is parallel to each other between the gag lever post moreover.

Preferably, heat dissipation mechanism includes radiator fan, transmission shaft, step motor, roof and bracing piece, radiator fan's upper end fixed mounting has the transmission shaft, and the upper end of transmission shaft is connected with step motor, step motor's upper end welding has the roof, and the right-hand member below welding of roof has the bracing piece.

Preferably, the top plate and the support rods are perpendicular to each other, the support rods are parallel to each other, and the support rods are in an L-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the main rod and the stirring rod in the high-speed single-screw extruder are connected integrally, so that the stirring rod rotates along with the rotation of the main rod, the stirring rod in the rotating process can stir and crush materials, the crushed materials enter the interior of the machine barrel through a feed inlet at the lower end of the hopper feed box, and the interior space of the machine barrel is small, so that the device enables the volume of the materials entering the interior of the machine barrel to be small through the mutual matching of the second motor, the second coupler, the main rod and the stirring rod, and the blockage of large materials in the interior of the machine barrel is avoided;

the lower end of the limiting rod is aligned to the concave rod, and then the funnel feeding box is pressed downwards to enable the limiting rod to penetrate through the concave rod;

the temperature in the machine barrel is high, melting and molding of materials are facilitated, secondly, a built-in heating tube in the machine barrel is heated quickly, the machine barrel is energy-saving compared with a heating ring outside the traditional machine barrel, a water channel is built in, efficient cooling is achieved, temperature of the sectional type machine barrel is controlled in a partitioning mode, control is accurate, when the materials are discharged through a discharge port die groove, the materials need to be cooled, a stepping motor is electrified, the stepping motor drives a cooling fan to rotate through a transmission shaft, the cooling fan works normally, the cooling fan can timely cool the discharged materials, and the material cooling and molding speed is increased;

the screw rotating speed in the device can reach 400r/min, the screw rotating speed is improved without changing the diameter of the screw, the torque born by the screw can be increased, when the torque reaches a certain degree, the screw is in danger of being twisted off, so the material shape of the screw can be changed for improving the bearing capacity of the screw, the diameter of the screw in the device is 75mm, the screw edge of a feeding section is deeper, the screw edge of a compression section is gradually shallower, the screw edge of a melting section is shallower, and the screw edge is provided with a plurality of small gaps, so that the material can pass through and be mixed conveniently, the speed is higher when the material passes through, but the torque is very small, the feeding section, the compression section and the melting section are lengthened, the length-diameter ratio is large, and the screw of the single-screw extruder is 36: 1.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view of the screw structure of the present invention.

In the figure: 1. a base; 2. an arc-shaped heater; 3. a barrel; 4. a screw; 5. a first coupling; 6. a first motor; 7. an encoder; 8. a feed inlet; 9. a hopper feed box; 10. a second motor; 11. a second coupling; 12. a main rod; 13. a stirring rod; 14. a circular ring frame; 15. a limiting rod; 16. a concave rod; 17. a discharge port mold slot; 18. a heat dissipation mechanism; 19. a heat radiation fan; 20. a drive shaft; 21. a stepping motor; 22. a top plate; 23. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-speed single-screw extruder comprises a base 1, a hopper feeding box 9 and a heat dissipation mechanism 18, wherein an arc-shaped heater 2 is fixedly installed at the upper end of the base 1, a machine barrel 3 is installed above the arc-shaped heater 2, a screw rod 4 is arranged inside the machine barrel 3, one end of a first coupler 5 is connected to the right end of the screw rod 4, a first motor 6 is fixedly installed at the other end of the first coupler 5, an encoder 7 is arranged above the first motor 6, the first motor 6 is connected with the screw rod 4 through the first coupler 5, a semi-surrounding structure is formed between the arc-shaped heater 2 and the machine barrel 3, the arc-shaped heater 2 is made of cast aluminum, the arc-shaped heater 2 is electrified, heat transfer is carried out between the arc-shaped heater 2 and the machine barrel 3, the temperature inside the machine barrel 3 is increased, and the screw rod 4 can be driven to rotate by the first coupler 5 when the first motor 6 with the model, the material in the machine barrel 3 is extruded and transmitted by the screw rod 4, the upper surface of the machine barrel 3 is provided with a feed inlet 8, the funnel feeding box 9 is positioned at the upper end of the feed inlet 8, the outer side of the funnel feeding box 9 is fixedly provided with a second motor 10, the outlet end of the second motor 10 is connected with one end of a second coupler 11, the other end of the second coupler 11 is connected with a main rod 12, stirring rods 13 are distributed on the outer side of the main rod 12 in an arrangement manner, the second motor 10 forms a rotating structure with the main rod 12 through the second coupler 11, the stirring rods 13 are uniformly distributed along the vertical direction of the main rod 12, the stirring rods 13 are symmetrical about the vertical central line of the main rod 12, the material is injected into the funnel feeding box 9, the second motor 10 is electrified, the second motor 10 drives the main rod 12 to rotate through the second coupler 11, and as the main rod 12 and the stirring rods 13 are integrally connected, therefore, the stirring rod 13 rotates along with the rotation of the main rod 12, the stirring rod 13 can stir and crush materials in the rotating process, the crushed materials enter the machine barrel 3 through the feed inlet 8 at the lower end of the hopper feed box 9, and the device has smaller internal space of the machine barrel 3, so that the volume of the materials entering the machine barrel 3 is smaller through the mutual matching among the second motor 10, the second coupler 11, the main rod 12 and the stirring rod 13, and the blockage of large materials in the machine barrel 3 is avoided;

a ring frame 14 is arranged above the second motor 10, the outer surface of the ring frame 14 is welded with the upper end of a limiting rod 15, a concave rod 16 penetrates through the lower end of the limiting rod 15, the inner surface of the ring frame 14 is attached to the outer surface of the upper end of the hopper feeding box 9, the limiting rods 15 are distributed along the outer surface of the ring frame 14 in a triangular shape, and the limiting rods 15 are parallel to each other, when the funnel feeding box 9 is installed, the lower end of the funnel feeding box 9 is firstly aligned with the feeding hole 8, and the lower end of the limiting rod 15 is aligned with the concave rod 16, and then the funnel feeding box 9 is pressed downwards, so that the limiting rod 15 penetrates through the inner part of the concave rod 16, the device reduces the integral gravity center of the hopper feeding box 9 and avoids the phenomenon that the hopper feeding box 9 is heavy and light in feet through the mutual matching of the limiting rod 15, the concave rod 16 and the circular ring frame 14, so that the connection stability between the hopper feeding box 9 and the machine barrel 3 is improved;

a discharge port die groove 17 is integrally installed at the left end of the machine barrel 3, a heat dissipation mechanism 18 is located above the discharge port die groove 17, the heat dissipation mechanism 18 comprises a heat dissipation fan 19, a transmission shaft 20, a stepping motor 21, a top plate 22 and a support rod 23, the transmission shaft 20 is fixedly installed at the upper end of the heat dissipation fan 19, the stepping motor 21 is connected to the upper end of the transmission shaft 20, the top plate 22 is welded to the upper end of the stepping motor 21, the support rod 23 is welded to the lower portion of the right end of the top plate 22, materials are conveyed from right to left along the rotation direction of the screw rod 4 until the materials are conveyed to the discharge port die groove 17 and are extruded into required shapes by the discharge port die groove 17 to be discharged, the temperature inside of the machine barrel 3 is high, the materials are convenient to melt and mold, when the materials are discharged through the discharge port die groove 17, the materials need, and the shape of bracing piece 23 sets up to "L" font structure, for step motor 21 circular telegram, step motor 21 drives radiator fan 19 through transmission shaft 20 and rotates for radiator fan 19 carries out normal work, and radiator fan 19 can carry out timely cooling to discharged material for material cooling shaping speed.

The working principle is as follows: when the high-speed single-screw extruder is used, firstly, the lower end of a funnel feeding box 9 is aligned with a feeding hole 8, the lower end of a limiting rod 15 is aligned with a concave rod 16, then, the funnel feeding box 9 is pressed downwards, the limiting rod 15 penetrates through the concave rod 16, the device reduces the integral gravity center of the funnel feeding box 9 through the mutual matching of the limiting rod 15, the concave rod 16 and a circular ring frame 14, so that the funnel feeding box 9 is stably installed, materials are injected into the funnel feeding box 9, then, a second motor 10 is electrified, the second motor 10 drives a main rod 12 to rotate through a second coupler 11, as the main rod 12 and the stirring rod 13 are connected in an integrated mode, the stirring rod 13 rotates along with the rotation of the main rod 12, the stirring rod 13 in the rotating process can stir and crush the materials, the crushed materials enter a machine barrel 3 through the feeding hole 8 at the lower end of the funnel feeding box 9, electrifying the arc-shaped heater 2, carrying out heat transfer between the arc-shaped heater 2 and the machine barrel 3, so that the temperature in the machine barrel 3 is increased, when the first motor 6 with the model of Y132S1-2 works, the screw rod 4 can be driven by the first coupler 5 to rotate, the material in the machine barrel 3 is extruded and transmitted by the screw rod 4, the material is conveyed from right to left along the rotation direction of the screw rod 4 until the material is conveyed to the discharge port die groove 17 and extruded into a required shape by the discharge port die groove 17 to be discharged, and the working principle of the high-speed single-screw extruder is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed single screw extruder, includes base (1), funnel feed box (9) and heat dissipation mechanism (18), its characterized in that: the upper end of the base (1) is fixedly provided with an arc-shaped heater (2), a machine barrel (3) is arranged inside the arc-shaped heater (2), a screw rod (4) is arranged inside the machine barrel (3), the right end of the screw rod (4) is connected with one end of a first coupler (5), a first motor (6) is fixedly arranged at the other end of the first coupler (5), an encoder (7) is arranged above the first motor (6), a feed inlet (8) is formed in the upper surface of the machine barrel (3), a funnel feeding box (9) is positioned at the upper end of the feed inlet (8), a second motor (10) is fixedly arranged outside the funnel feeding box (9), the outlet end of the second motor (10) is connected with one end of a second coupler (11), the other end of the second coupler (11) is connected with a main rod (12), and stirring rods (13) are distributed on the outer side of the main rod (12), the top of second motor (10) is provided with ring frame (14), and the outer skin weld of ring frame (14) has the upper end of gag lever post (15), concave pole (16) have been run through to the lower extreme of gag lever post (15), discharge gate mould groove (17) are installed to the left end integration of barrel (3), heat dissipation mechanism (18) are located the top of discharge gate mould groove (17).

2. A high speed single screw extruder according to claim 1, wherein: the first motor (6) is connected with the screw (4) through the first coupler (5), a semi-surrounding structure is formed between the arc-shaped heater (2) and the machine barrel (3), and the arc-shaped heater (2) is made of cast aluminum.

3. A high speed single screw extruder according to claim 1, wherein: the second motor (10) forms rotating structure through between second shaft coupling (11) and mobile jib (12), and puddler (13) along the vertical direction evenly distributed of mobile jib (12), moreover between puddler (13) about the vertical central line symmetry of mobile jib (12).

4. A high speed single screw extruder according to claim 1, wherein: the inner surface of the ring frame (14) is attached to the outer surface of the upper end of the funnel feeding box (9), the limiting rods (15) are distributed in a triangular mode along the outer surface of the ring frame (14), and the limiting rods (15) are parallel to each other.

5. A high speed single screw extruder according to claim 1, wherein: radiating mechanism (18) include radiator fan (19), transmission shaft (20), step motor (21), roof (22) and bracing piece (23), the upper end fixed mounting of radiator fan (19) has transmission shaft (20), and the upper end of transmission shaft (20) is connected with step motor (21), the upper end welding of step motor (21) has roof (22), and the right-hand member below welding of roof (22) has bracing piece (23).

6. A high speed single screw extruder according to claim 5, wherein: the top plate (22) and the support rods (23) are perpendicular to each other, the support rods (23) are parallel to each other, and the support rods (23) are in an L-shaped structure.