CN212979189U

CN212979189U - Novel double-screw extruder

Info

Publication number: CN212979189U
Application number: CN202021580089.0U
Authority: CN
Inventors: 邢福深; 杨林
Original assignee: Ningxia Chunshengyuan Biotechnology Co ltd
Current assignee: Ningxia Chunshengyuan Biotechnology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-16
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to a novel double-screw extruder, which comprises a case; two parallel screws driven by a motor to rotate are arranged in the case, each screw comprises at least two sections of sub-screws, the heads and the tails of the two adjacent sub-screws are fixedly connected, at least one end part of the two end parts connected with the two adjacent sub-screws is provided with a bearing, and the outer wall of the bearing is fixedly connected with the inner wall of the case through a connecting rod; the bearings oppositely arranged on the two screw rods are connected by an extension spring. The utility model discloses a double screw extruder, its screw rod divide the screw rod to constitute by a plurality of sections, and the processing and the cost of transportation that long screw rod can effectively be solved in the setting that a plurality of sections divide the screw rod, and can change one section screw rod, reduces maintenance, cost of maintenance.

Description

Novel double-screw extruder

Technical Field

The utility model belongs to the technical field of food equipment, especially, relate to a novel double screw extruder.

Background

Currently, granular essence, seasonings and the like processed in the food industry are granulated and formed by an extruder, the working principle of the extruder is that materials are extruded and formed through extrusion holes by means of pressure and shearing force generated by rotation of a screw, and a double-screw extruder is mostly used for enhancing the pressure and the shearing force; the screw is generally provided with a conveying section, a compression section and a metering section, and the main difference is that the diameter, the pitch and the depth of the screw are different. The three-section of current screw rod is integrated into one piece, and length is longer, and mould processing cost is high, and the cost of transportation is also higher, and if one of them section has the damage to need to change whole screw rod, maintains cost of maintenance higher, the utility model discloses be the improvement of going on above-mentioned technical scheme's basis promptly.

Disclosure of Invention

The utility model discloses to the relevant problem in the background art, provide a novel double screw extruder, its screw rod divides the screw rod by a plurality of sections to constitute, and the processing and the cost of transportation that long screw rod can effectively be solved in the setting that a plurality of sections divided the screw rod, and can change one section screw rod, reduce maintenance, cost of maintenance.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a novel double-screw extruder comprises a machine case;

two parallel screws driven by a motor to rotate are arranged in the case, each screw comprises at least two sections of sub-screws, the heads and the tails of the two adjacent sub-screws are fixedly connected, at least one end part of the two end parts connected with the two adjacent sub-screws is provided with a bearing, and the outer wall of the bearing is fixedly connected with the inner wall of the case through a connecting rod;

the bearings oppositely arranged on the two screw rods are connected by an extension spring.

Furthermore, the top of the case close to one end of the motor is provided with a feed hopper communicated with the inside of the case, and the side wall of the case far away from the motor is provided with a plurality of extrusion holes.

Further, the motor is installed on the installation seat, the installation seat is fixedly arranged on the base through bolts, a sliding groove is formed in the base, and a sliding block matched with the sliding groove is arranged at the bottom of the installation seat.

Furthermore, a limit groove is arranged in the sliding groove at a position corresponding to the screw rod, and the limit groove is a shallow groove.

Furthermore, one end of the screw rod, which is far away from the motor, is rotatably connected with a support through a bearing, and the support is fixedly connected with the side wall of the case.

Furthermore, the side wall of the bracket, which is opposite to the side wall of the case with the extrusion hole, is of a hollow structure.

The utility model has the advantages that:

(1) the screw of the double-screw extruder of the utility model consists of a plurality of sections of sub-screws, the types of the helical blades of two adjacent sections of sub-screws can be the same or different, the arrangement of the plurality of sections of sub-screws can effectively solve the processing and transportation cost of the long screw, and a certain section of screw can be replaced, thereby reducing the maintenance cost;

(2) the utility model discloses a twin-screw extruder's screw rod comprises a plurality of sections branch screw rods, for the stability of guaranteeing the level uniformity and the use of two screws rods, has four designs as follows: firstly, two adjacent sub-screws are inserted and fixed, and secondly, bearings on the sub-screws are fixed with the inner wall of the case through connecting rods; thirdly, two bearings oppositely arranged on the two screws are connected by an extension spring; fourthly, the tail ends of the two screws are fixed by the hollow supports relative to the height position of the case;

(3) the utility model discloses a spout and spacing groove can play the prepositioning effect to the motor from two directions of X, Y, make things convenient for motor output and screw rod fixed connection.

Drawings

FIG. 1 is a schematic plan perspective structure view of a screw extruder in the embodiment;

FIG. 2 is a schematic perspective view showing the appearance of a screw extruder in the example;

FIG. 3 is a perspective view schematically illustrating the structure of the screw extruder in the embodiment;

FIG. 4 is a schematic view of the internal structure of the screw extruder in the example;

fig. 5 is a schematic view of a connection structure of two adjacent sub-screw ends in the embodiment.

In the figure: 1. a chassis; 11. a feed hopper; 12. an extrusion orifice; 2. a motor; 21. a mounting seat; 22. a slider; 23. a base; 24. a chute; 3. a screw; 31. dividing a screw rod; 4. a bearing; 5. a connecting rod; 6. an extension spring; 7. and (4) a bracket.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-5, a novel twin-screw extruder comprises a machine box 1;

the motor 2 is arranged in the case 1 to drive the two parallel screws 3 to rotate, each screw 3 comprises at least two segments of sub-screws 31, the heads and the tails of the two adjacent segments of sub-screws 31 are fixedly connected, the end parts of the sub-screws 31 are provided with bearings 4, and the outer walls of the bearings 4 are fixedly connected with the inner wall of the case 1 through connecting rods 5.

The screw 3 in this embodiment is composed of a plurality of sections of sub-screws 31, the models of two adjacent sections of sub-screws 31 can be the same or different, the arrangement of the plurality of sections of sub-screws 31 can effectively solve the processing and transportation cost of the long screw 3, and a certain section of screw 3 can be replaced, thereby reducing the maintenance and repair cost.

In addition, in order to ensure the stability of the use of the screw 3 composed of the sub-screws 31, a bearing 4 fixed relative to the case 1 through a connecting rod 5 is arranged between the two sub-screws 31.

In addition, in order to further ensure the uniformity of the horizontal heights of the two screws 3, two bearings 4 which are oppositely arranged on the two screws can be connected by an extension spring 6.

In some embodiments, a feed hopper 11 communicating with the inside of the case 1 is disposed on the top of one end of the case 1 close to the motor 2, and a plurality of extrusion holes 12 are disposed on the side wall of the case far from the motor 2.

In some embodiments, the motor 2 is mounted on a mounting seat 21, the mounting seat 21 is fixed on the base 23 by bolts, a sliding groove 24 is formed on the base 23, a sliding block 22 matched with the sliding groove 24 is arranged at the bottom of the mounting seat 21, and a position corresponding to the screw 3 in the sliding groove 24 is provided with a limiting groove (not shown), which is a shallow groove. In the actual use process, the distance between the two screws 3 is fixed, and the position of the motor 2 needs to be adjusted, so that the output end of the motor 2 is fixedly connected with the screws 3; this embodiment sets up spout 24 and spacing groove, and when motor 2 installed, can arrange the slider 22 of the mount pad 21 of motor 2 in spout 24 in advance to push away to the spacing inslot, at this moment, motor 2's output is relative with screw rod 3, can connect fast. Namely, the sliding groove 24 and the limiting groove can play a role in pre-positioning the motor 2 from two directions of X, Y, so that the output end of the motor 2 is conveniently and fixedly connected with the screw rod 3.

In some embodiments, one end of each of the two screws 3, which is far away from the motor 2, is rotatably connected to a bracket 7 through a bearing 4, the bracket 7 is fixedly connected to a side wall of the chassis 1, and a side wall of the bracket 7, which is opposite to the side wall of the chassis 1 with the extrusion hole 12, is a hollow structure. The support 7 is mainly used for keeping the horizontal height consistency of the two screws 3, so that the tail ends of the screws 3 are prevented from moving downwards under the action of gravity and the service life of the screws 3 is prevented from being influenced.

In some embodiments, the twin screw extruder is assembled as follows:

one end of a sub-screw 31 close to the motor 2 penetrates through a bearing 4 on the side wall of the case 1 and then is fixedly connected with the output end of the motor 2, a raised head of the other end of the sub-screw 31 penetrates through the bearing 4 on the connecting rod 5 and then is inserted into a groove on the end of the other sub-screw 31 and is fixedly connected by a bolt (as shown in figure 5), and the free end of the connecting rod 5 is fixedly connected with the side wall of the case 1 by a bolt; the tail part of the sub-screw 31 far away from the motor 2 is rotationally connected with the bearing 4 on the bracket 7; hanging rings are arranged on the outer walls of two adjacent bearings 4 on the two screw rods 3, and hooks at two ends of the extension spring 6 are hung on the corresponding hanging rings. Thereby completing the assembly of the twin-screw extruder.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A novel double-screw extruder is characterized in that: comprises a chassis;

2. The novel twin-screw extruder according to claim 1, characterized in that: the top of the case close to one end of the motor is provided with a feed hopper communicated with the inside of the case, and the side wall of the case far away from the motor is provided with a plurality of extrusion holes.

3. The novel twin-screw extruder according to claim 1, characterized in that: the motor is installed on the installation seat, the installation seat is fixedly arranged on the base through bolts, a sliding groove is formed in the base, and a sliding block matched with the sliding groove is arranged at the bottom of the installation seat.

4. A novel twin-screw extruder as claimed in claim 3, characterised in that: the position in the sliding groove corresponding to the screw rod is provided with a limit groove which is a shallow groove.

5. The novel twin-screw extruder according to claim 2, characterized in that: one end of the screw rod, which is far away from the motor, is rotatably connected with the support through a bearing, and the support is fixedly connected with the side wall of the case.

6. The novel twin-screw extruder according to claim 5, characterized in that: the side wall of the bracket, which is opposite to the side wall of the case with the extrusion hole, is of a hollow structure.