CN223493818U - Feeding mechanism of screw extruder - Google Patents

Abstract

The utility model relates to the technical field of master batch production and discloses a feeding mechanism of a screw extruder, which comprises a mixing hopper, wherein a cover plate is detachably arranged above the mixing hopper, two feeding pipes are fixedly connected to the top surface of the cover plate, a feeding hopper is fixedly connected to the outer wall of each feeding pipe, a first feeding hole is formed in the outer wall of each feeding pipe, a first auger shaft is arranged in each feeding pipe, and a first auger is connected to the outer wall of each first auger shaft. According to the utility model, the first auger is driven by the first driving motor to start rotating, the first rotating rod, the second rotating rod and the second auger shaft are driven by the second driving motor to start rotating at the same time, at the moment, raw materials to be processed are respectively put into the feeding hopper, and are stably transported to the second feeding port through the rotation of the first auger, so that the stability and the continuity of raw material supply are ensured, at the moment, the raw materials firstly fall on the outer wall of the cone frustum, then fall into the mixing hopper and finally fall into the extruder.

Description

Feeding mechanism of screw extruder

Technical Field

The utility model relates to the technical field of master batch production, in particular to a feeding mechanism of a screw extruder.

Background

Screw extruder is an important plastic machine and is widely used in rubber and plastic processing industry. The solid material is fed between the screw and the machine barrel, and is heated and plasticized through rotary extrusion, shearing and stirring of the screw, and the product with the required shape is extruded continuously by the machine head. The feed needs to be advanced before the raw materials enter the extruder.

According to the Chinese patent with the publication number of CN207224352U, a feeding mechanism of a color master batch adding device comprises a feeding pipe and a bracket, wherein a filter screen with the aperture equal to the outer diameter of color master batch is slidably connected in the feeding pipe, and a driving piece for driving the filter screen to reciprocate up and down along the extending direction of the feeding pipe is arranged on the bracket.

In the above scheme, the master batch is filtered through the filter screen connected in the feed pipe, and the scheme still has the following defects, and although redundant sundries can be screened out after filtration, raw materials still need to be manually and continuously put in the feeding process, and the effect of continuous feeding cannot be achieved.

Disclosure of utility model

The utility model aims to provide a feeding mechanism of a screw extruder, which aims to solve the problem that raw materials still need to be fed manually continuously in the feeding process and continuous feeding cannot be realized.

In order to achieve the aim, the feeding mechanism of the screw extruder comprises a mixing hopper, a cover plate is detachably arranged above the mixing hopper, two feeding pipes are fixedly connected to the top surface of the cover plate, a feeding hopper is fixedly connected to the outer wall of each feeding pipe, a first feeding port is formed in the outer wall of each feeding pipe, the lower end of each feeding hopper penetrates through the corresponding first feeding port, a first auger shaft is arranged in each feeding pipe, a first auger is connected to the outer wall of each first auger shaft, and the outer wall of each first auger is attached to the inner wall of each feeding pipe.

Preferably, one end detachable of inlet pipe is connected with the sealing ring, one side of sealing ring is connected with first driving motor, first driving motor's drive end passes the inside of sealing ring, first driving motor's drive end with first auger is connected, two second feed inlets have been seted up to the top surface of apron, the other end of inlet pipe passes the second feed inlet.

Preferably, the top surface of mixing bucket is connected with increases the ring, increase the inside rotation of ring and be provided with first dwang, increase the inside of ring and be provided with the circular cone platform, first dwang passes the inside of circular cone platform, increase the ring with the height of circular cone platform equals, wherein the top surface of circular cone platform with the bottom surface of apron laminating mutually.

Preferably, the lower end of the outer wall of the first rotating rod is connected with a second rotating rod, the inside of the second rotating rod is connected with two mixing arms in a penetrating manner, the length of the second rotating rod is equal to the height of the mixing bucket, and the outer wall of the mixing arm is attached to the inner wall of the mixing bucket.

Preferably, the inside of second dwang is connected with the second auger axle, the partial outer wall of exposing of second auger axle is connected with the second auger, the bottom surface of mixing bucket is connected with the discharging pipe, the partial length of exposing of second auger axle with the height of discharging pipe equals.

Preferably, a second driving motor is mounted on the top surface of the cover plate, the driving end of the second driving motor penetrates through the cover plate, and the driving end of the second driving motor is connected with the first rotating rod.

Compared with the prior art, the feeding mechanism of the screw extruder adopting the technical scheme has the following beneficial effects:

1. In use, a worker starts the first driving motor and the second driving motor firstly, at the moment, the first driving motor drives the first auger shaft and further drives the first auger to start rotating, the second driving motor drives the first rotating rod to start rotating, and because the first rotating rod is connected with the second rotating rod and the second auger shaft, the first rotating rod, the second rotating rod and the second auger shaft start rotating at the same time, at the moment, raw materials to be processed are respectively put into the feed hopper, raw materials can enter a feeding pipe through a first feeding port, can be stably transported to a second feeding port through rotation of a first auger, so that the stability and continuity of raw material supply are ensured, at the moment, the raw materials can firstly fall on the outer wall of a truncated cone and then fall into the mixing hopper, the mixing arm is driven to carry out preliminary mixing on the raw materials through a second rotating rod, then fall into the discharging pipe and finally fall into an extruder;

2. In use, the fan-shaped outer wall of the cone frustum and the first rotating rod drive the cone frustum to rotate, so that raw materials falling on the cone frustum can be dispersed, the raw materials can be ensured to fall into the mixing hopper uniformly, the mixing speed fluctuation caused by unstable supply quantity of the raw materials after entering the mixing hopper is prevented, and the mixing stability is improved;

3. In use, the two mixing arms are driven to rotate through the second rotating rod, raw materials inside the mixing hopper are further preliminarily mixed, and the raw materials after preliminary mixing can stably enter the extruder through the second auger connected with the outer wall of the second auger shaft, so that the raw materials can be further mixed, and the mixing efficiency is improved.

Drawings

Fig. 1 is a perspective view of an embodiment.

Fig. 2 is a split schematic of an embodiment.

Fig. 3 is a schematic diagram of the mixing bucket of the embodiment.

FIG. 4 is a schematic view of an embodiment taken apart at a feed tube.

In the drawing, 1, a mixing bucket, 2, a cover plate, 3, a feeding pipe, 4, a feeding hopper, 5, a first feeding hole, 6, a first auger shaft, 7, a first auger, 8, a sealing ring, 9, a first driving motor, 10, a second feeding hole, 11, an heightening ring, 12, a first rotating rod, 13, a conical frustum, 14, a second rotating rod, 15, a mixing arm, 16, a second auger shaft, 17, a second auger, 18, a discharging pipe, 19 and a second driving motor.

Detailed Description

The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 4, a feeding mechanism of screw extruder, including mixing hopper 1, mixing hopper 1's top detachable is provided with apron 2, the top surface intercommunication of apron 2 is fixed with two inlet pipes 3, the outer wall intercommunication of inlet pipe 3 is fixed with feeder hopper 4, first feed inlet 5 has been seted up to the outer wall of inlet pipe 3, first feed inlet 5 is passed to the lower extreme of feeder hopper 4, the inside of inlet pipe 3 is provided with first auger shaft 6, the outer wall of first auger shaft 6 is connected with first auger 7, the outer wall of first auger 7 is laminated with the inner wall of inlet pipe 3, the one end detachable of inlet pipe 3 is connected with sealing ring 8, one side of sealing ring 8 is connected with first driving motor 9, the drive end of first driving motor 9 passes the inside of sealing ring 8, the drive end of first driving motor 9 is connected with first auger 7, two second feed inlets 10 have been seted up to the top surface of apron 2, the other end of inlet pipe 3 passes second feed inlet 10.

In use, the first driving motor 9 and the second driving motor 19 are started by the staff at first, at this moment, the first driving motor 9 drives the first auger shaft 6 and then drives the first auger 7 to start rotating, the second driving motor 19 drives the first rotating rod 12 to start rotating, at this moment, the first rotating rod 12, the second rotating rod 14 and the second auger shaft 16 start rotating simultaneously because the first rotating rod 12 is connected with the second rotating rod 14 and the second auger shaft 16, at this moment, raw materials to be processed are respectively thrown into the feed hopper 4, the raw materials can enter the feed pipe 3 through the first feed inlet 5, the raw materials can be stably transported to the second feed inlet 10 through the rotation of the first auger 7, the stability and the continuity of raw material supply are ensured, at this moment, the raw materials can firstly fall on the outer wall of the cone table 13, then fall into the interior of the mixing hopper 1, the mixing arm 15 is driven by the second rotating rod 14 to perform preliminary mixing on the raw materials, then fall into the interior of the discharge pipe 18, and finally fall into the extruder.

As shown in fig. 1-3, the top surface of the mixing bucket 1 is connected with a heightening ring 11, a first rotating rod 12 is rotatably arranged in the heightening ring 11, a conical table 13 is arranged in the heightening ring 11, the first rotating rod 12 penetrates through the conical table 13, the heights of the heightening ring 11 and the conical table 13 are equal, the top surface of the conical table 13 is attached to the bottom surface of the cover plate 2, the lower end of the outer wall of the first rotating rod 12 is connected with a second rotating rod 14, two mixing arms 15 are connected in a penetrating manner in the second rotating rod 14, the length of the second rotating rod 14 is equal to the height of the mixing bucket 1, the outer wall of the mixing arm 15 is attached to the inner wall of the mixing bucket 1, a second auger shaft 16 is connected in the second rotating rod 14, the exposed part of the second auger shaft 16 is connected with a second auger 17, the bottom surface of the mixing bucket 1 is connected with a discharging pipe 18, and the exposed part of the second auger shaft 16 is equal to the height of the discharging pipe 18.

In use, the fan-shaped outer wall of the cone table 13 and the first rotating rod 12 drive the cone table 13 to rotate, so that raw materials falling on the cone table 13 can be dispersed, the raw materials can be ensured to fall into the mixing hopper 1 uniformly, the mixing speed fluctuation caused by unstable supply quantity of the raw materials after entering the mixing hopper 1 is prevented, and the mixing stability is improved.

As shown in fig. 1 and 2, the top surface of the cover plate 2 is provided with a second driving motor 19, the driving end of the second driving motor 19 penetrates through the cover plate 2, and the driving end of the second driving motor 19 is connected with the first rotating rod 12.

In use, the two mixing arms 15 are driven to rotate through the second rotating rod 14, raw materials in the mixing hopper 1 are primarily mixed, and the primarily mixed raw materials can stably enter the extruder through the second auger 17 connected with the outer wall of the second auger shaft 16, so that the raw materials can be further mixed, and the mixing efficiency is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a feeding mechanism of screw extruder, includes mixing bucket (1), its characterized in that, the top detachable of mixing bucket (1) is provided with apron (2), the top surface intercommunication of apron (2) is fixed with two inlet pipes (3), the outer wall intercommunication of inlet pipe (3) is fixed with feeder hopper (4), first feed inlet (5) have been seted up to the outer wall of inlet pipe (3), the lower extreme of feeder hopper (4) passes first feed inlet (5), the inside of inlet pipe (3) is provided with first auger shaft (6), the outer wall of first auger shaft (6) is connected with first auger (7), the outer wall of first auger (7) with the inner wall of inlet pipe (3) laminating mutually;

The top surface that mixes fill (1) is connected with increases ring (11), the inside rotation that increases ring (11) is provided with first dwang (12), the inside that increases ring (11) is provided with circular truncated cone (13), first dwang (12) pass the inside of circular truncated cone (13), increase ring (11) with the height of circular truncated cone (13) equals, wherein the top surface of circular truncated cone (13) with the bottom surface of apron (2) laminating mutually.

2. The feeding mechanism of the screw extruder according to claim 1, wherein one end of the feeding pipe (3) is detachably connected with a sealing ring (8), one side of the sealing ring (8) is connected with a first driving motor (9), the driving end of the first driving motor (9) penetrates through the inside of the sealing ring (8), the driving end of the first driving motor (9) is connected with the first packing auger (7), two second feeding holes (10) are formed in the top surface of the cover plate (2), and the other end of the feeding pipe (3) penetrates through the second feeding holes (10).

3. The feeding mechanism of a screw extruder according to claim 1, wherein a second rotating rod (14) is connected to the lower end of the outer wall of the first rotating rod (12), two mixing arms (15) are connected inside the second rotating rod (14) in a penetrating manner, the length of the second rotating rod (14) is equal to the height of the mixing hopper (1), and the outer wall of the mixing arms (15) is attached to the inner wall of the mixing hopper (1).

4. The feeding mechanism of a screw extruder according to claim 3, wherein a second auger shaft (16) is connected to the inside of the second rotating rod (14), a second auger (17) is connected to the outer wall of the exposed part of the second auger shaft (16), a discharging pipe (18) is connected to the bottom surface of the mixing bucket (1), and the length of the exposed part of the second auger shaft (16) is equal to the height of the discharging pipe (18).

5. The feeding mechanism of a screw extruder according to claim 1, wherein a second driving motor (19) is mounted on the top surface of the cover plate (2), the driving end of the second driving motor (19) penetrates through the cover plate (2), and the driving end of the second driving motor (19) is connected with the first rotating rod (12).