CN213500735U

CN213500735U - Double-screw extruder capable of pretreating raw materials

Info

Publication number: CN213500735U
Application number: CN202022153679.1U
Authority: CN
Inventors: 朱秋林; 程杰
Original assignee: Sichuan Advance Technology Co ltd
Current assignee: Sichuan Advance Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-22
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a can carry out twin-screw extruder of preliminary treatment to raw materials, including work shell, power unit, hot plate and motor, the right side of work shell is provided with power unit, and power unit's left end is connected with the head rod, the below of head rod is provided with the second connecting rod, and the left surface of head rod and second connecting rod all is fixed with first screw rod, the inside of work shell is fixed with the extrusion ring, the last skin weld of work shell has the preliminary treatment shell, the output of motor is connected with the lead screw, the inner wall of preliminary treatment shell is fixed with the cushion, and the second screw rod is installed to the bottom of preliminary treatment shell. This can carry out twin-screw extruder of preliminary treatment to raw materials utilizes the second screw rod to extrude the raw materials in advance for raw materials compressive deformation, the volume of extrusion working chamber is reduced in the setting of extrusion ring, thereby improves extrusion efficiency, conveniently controls the volume that the raw materials got into the work shell.

Description

Double-screw extruder capable of pretreating raw materials

Technical Field

The utility model relates to an extruder technical field specifically is a can carry out double screw extruder of preliminary treatment to the raw materials.

Background

The double screw extruder extrudes the raw materials through 2 groups of screws, so that the raw materials are deformed under pressure and matched with the heating plate, so that the raw materials become molten slurry, and workers manufacture various articles by utilizing the slurry, so that the performance of the extruder is closely related to the quality of manufactured products.

The existing double-screw extruder has low extrusion efficiency, so that the extruded molten material contains particle impurities, and the quantity of the raw materials entering a working shell is inconvenient to control.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can carry out twin-screw extruder of preliminary treatment to the raw materials to the current twin-screw extruder extrusion efficiency who proposes in solving above-mentioned background art is lower, causes the inside granule impurity that contains of the melting material of extruding, the problem of the volume that inconvenient control raw materials got into the work shell.

In order to achieve the above object, the utility model provides a following technical scheme: a double-screw extruder capable of pretreating raw materials comprises a working shell, a power mechanism, a heating plate and a motor, wherein the power mechanism is arranged on the right side of the working shell, and the left end of the power mechanism is connected with a first connecting rod, a second connecting rod is arranged below the first connecting rod, and the left side surfaces of the first connecting rod and the second connecting rod are both fixed with a first screw rod, the interior of the working shell is fixed with an extrusion ring, and the outer side surface of the extrusion ring is provided with a heating plate, the upper surface of the working shell is welded with a pretreatment shell, a motor is fixed on the upper surface of the pretreatment shell, the output end of the motor is connected with a screw rod, a limiting rod is arranged on the right side of the screw rod, and the outer side of the screw rod is connected with a plugging block by screw thread, the inner wall of the pretreatment shell is fixed with a cushion block, and the bottom of the pretreatment shell is provided with a second screw rod, and the right side surface of the second screw rod is fixed with a third connecting rod.

Preferably, the first connecting rod and the second connecting rod both penetrate through the right end of the working shell, and the bottom end of the pretreatment shell is communicated with the top end of the working shell.

Preferably, the longitudinal section of the extrusion ring is in a trapezoidal structure, and the transverse center line of the extrusion ring and the transverse center line of the working shell are overlapped.

Preferably, the third connecting rod, the second connecting rod and the first connecting rod form a linkage mechanism, and the second screw rod and the pretreatment shell form a rotating structure through the third connecting rod.

Preferably, the inside of jam piece is run through there is the gag lever post, and the top and the bottom longitudinal section of blockking up the piece all are the trapezium structure.

Preferably, the inner diameter of the bottom end of the cushion block is equal to the diameter of the lower surface of the blocking block, and the blocking block and the pretreatment shell form a lifting structure.

Compared with the prior art, the beneficial effects of the utility model are that: according to the double-screw extruder capable of pretreating raw materials, the raw materials are pre-extruded by the second screw, so that the raw materials are pressed and deformed, and the volume of the extrusion working cavity is reduced due to the arrangement of the extrusion ring, so that the extrusion efficiency is improved, and the amount of the raw materials entering the working shell is conveniently controlled;

1. the device is provided with a pretreatment shell and a second screw rod, wherein the second screw rod rotates in the pretreatment shell to pretreat the raw material so that the raw material is pressed and deformed, the pretreated raw material is introduced into the working shell along with the rotation of the second screw rod, and the rotation of the first screw rod is utilized to continuously apply pressure to the raw material so that the raw material is melted and extruded, so that the working efficiency is improved;

2. the extrusion device is provided with a first screw and an extrusion ring, wherein 2 groups of first screws are positioned on the inner side of the extrusion ring, and the clearance between the extrusion ring and the first screws is smaller and smaller along the path of conveying raw materials, so that the extrusion efficiency is improved;

3. the motor controls the lifting of the plugging block through the lead screw, so that the opening and closing of the outlet of the cushion block are controlled, and the quantity of raw materials entering the working shell is controlled.

Drawings

FIG. 1 is a front view of the cutting structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a side view of the cutting structure of the present invention;

fig. 5 is the schematic view of the whole structure of the plugging block and the cushion block.

In the figure: 1. a working shell; 2. a power mechanism; 3. a first connecting rod; 4. a second connecting rod; 5. a first screw; 6. an extrusion ring; 7. heating plates; 8. a third connecting rod; 9. pretreating the shell; 10. a screw rod; 11. a limiting rod; 12. a plugging block; 13. cushion blocks; 14. a motor; 15. a second screw.

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. 1-5, the present invention provides a technical solution: a double-screw extruder capable of pretreating raw materials comprises a working shell 1, a power mechanism 2, a first connecting rod 3, a second connecting rod 4, a first screw 5, an extrusion ring 6, a heating plate 7, a third connecting rod 8, a pretreatment shell 9, a screw rod 10, a limiting rod 11, a blocking block 12, a cushion block 13, a motor 14 and a second screw 15, wherein the power mechanism 2 is arranged on the right side of the working shell 1, the left end of the power mechanism 2 is connected with the first connecting rod 3, the second connecting rod 4 is arranged below the first connecting rod 3, the first screw 5 is fixed on the left side surfaces of the first connecting rod 3 and the second connecting rod 4, the extrusion ring 6 is fixed inside the working shell 1, the heating plate 7 is installed on the outer side surface of the extrusion ring 6, the pretreatment shell 9 is welded on the upper surface of the working shell 1, the motor 14 is fixed on the upper surface of the pretreatment shell 9, and the output end of the motor 14 is connected with the screw rod 10, a limiting rod 11 is arranged on the right side of the screw rod 10, a blocking block 12 is connected to the outer side of the screw rod 10 in a threaded mode, a cushion block 13 is fixed to the inner wall of the pretreatment shell 9, a second screw rod 15 is installed at the bottom end of the pretreatment shell 9, and a third connecting rod 8 is fixed to the right side face of the second screw rod 15;

as shown in fig. 1 and 3, the first connecting rod 3 and the second connecting rod 4 both penetrate through the right end of the working shell 1, and the bottom end of the pretreatment shell 9 is communicated with the top end of the working shell 1, so that the raw material in the pretreatment shell 9 flows into the working shell 1, the longitudinal section of the extrusion ring 6 is in a trapezoidal structure, the transverse center line of the extrusion ring 6 is overlapped with the transverse center line of the working shell 1, the extrusion efficiency is improved, the third connecting rod 8, the second connecting rod 4 and the first connecting rod 3 form a linkage mechanism, the second screw 15 forms a rotation structure with the pretreatment shell 9 through the third connecting rod 8, the raw material is pretreated by the second screw 15, and the working pressure of the first screw 5 is reduced;

as in fig. 1, 2 and 5, the limiting rod 11 penetrates through the inside of the blocking block 12, the longitudinal sections of the top end and the bottom end of the blocking block 12 are both in a trapezoidal structure, so that the raw material is prevented from being left on the blocking block 12, the inner diameter of the bottom end of the cushion block 13 is equal to the diameter of the lower surface of the blocking block 12, the blocking block 12 and the pretreatment shell 9 form a lifting structure, and the feeding amount of the raw material is controlled by the blocking block 12.

The working principle is as follows: when the double-screw extruder capable of pretreating raw materials is used, firstly, a driving motor in a power mechanism 2 drives a first connecting rod 3 to rotate through a speed reducer, gears fixed on the outer side surfaces of the first connecting rod 3 and a second connecting rod 4 are meshed with each other to drive 2 groups of first screws 5 to rotate on the inner side of an extrusion ring 6, the first connecting rod 3 drives a third connecting rod 8 to rotate through a belt and a gear, a second screw 15 connected with the third connecting rod 8 rotates in a pretreatment shell 9 to throw the raw materials into the pretreatment shell 9 in FIG. 1, the second screw 15 extrudes and conveys the raw materials, the pretreated raw materials are conveyed to the interior of a working shell 1 and then are extruded by the 2 groups of first screws 5, and in the rotating process of the first screws 5, as the uniform longitudinal sections of the first screws 5 and the extrusion ring 6 are in a trapezoidal structure as shown in FIG. 1, the clearance between the outer side surface of the first screw 5 and the inner side surface of the extrusion ring 6 is smaller and smaller, and the clearance between the first screw 5 and the first screw 5 is smaller and smaller, so that the extrusion efficiency of the raw materials is improved;

when the amount of the raw material entering the interior of the pretreatment shell 9 needs to be controlled, the motor 14 is turned on, the motor 14 drives the screw rod 10 to rotate clockwise, the blocking block 12 in threaded connection with the screw rod 10 moves downwards, the bottom end outlet of the cushion block 13 in fig. 2 is blocked, and therefore the amount of the raw material entering the working shell 1 is controlled, so that a series of operations of the double-screw extruder capable of pretreating the raw material are completed, and the content which is not described in detail in the description belongs to the prior art which is well known to a person skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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.

Claims

1. The utility model provides a can carry out twin-screw extruder of preliminary treatment to raw materials, includes work shell (1), power unit (2), hot plate (7) and motor (14), its characterized in that: the right side of the working shell (1) is provided with a power mechanism (2), the left end of the power mechanism (2) is connected with a first connecting rod (3), a second connecting rod (4) is arranged below the first connecting rod (3), the left side surfaces of the first connecting rod (3) and the second connecting rod (4) are respectively fixed with a first screw (5), an extrusion ring (6) is fixed inside the working shell (1), a heating plate (7) is installed on the outer side surface of the extrusion ring (6), a pretreatment shell (9) is welded on the upper surface of the working shell (1), a motor (14) is fixed on the upper surface of the pretreatment shell (9), the output end of the motor (14) is connected with a screw rod (10), the right side of the screw rod (10) is provided with a limiting rod (11), the outer side of the screw rod (10) is in threaded connection with a plugging block (12), a cushion block (13) is fixed on the inner wall of the pretreatment shell (9), and a second screw (15) is installed at the bottom end of the pretreatment shell (9), and a third connecting rod (8) is fixed on the right side surface of the second screw (15).

2. The twin-screw extruder capable of pretreating raw materials according to claim 1, wherein: the first connecting rod (3) and the second connecting rod (4) penetrate through the right end of the working shell (1), and the bottom end of the pretreatment shell (9) is communicated with the top end of the working shell (1).

3. The twin-screw extruder capable of pretreating raw materials according to claim 1, wherein: the longitudinal section of the extrusion ring (6) is of a trapezoidal structure, and the transverse center line of the extrusion ring (6) and the transverse center line of the working shell (1) are overlapped.

4. The twin-screw extruder capable of pretreating raw materials according to claim 1, wherein: the third connecting rod (8), the second connecting rod (4) and the first connecting rod (3) form a linkage mechanism, and the second screw (15) and the pretreatment shell (9) form a rotating structure through the third connecting rod (8).

5. The twin-screw extruder capable of pretreating raw materials according to claim 1, wherein: the inside of jam piece (12) runs through there is gag lever post (11), and the top and the bottom longitudinal section of jam piece (12) all are the trapezium structure.

6. The twin-screw extruder capable of pretreating raw materials according to claim 1, wherein: the inner diameter of the bottom end of the cushion block (13) is equal to the diameter of the lower surface of the blocking block (12), and the blocking block (12) and the pretreatment shell (9) form a lifting structure.