CN218985687U - Screw extruder with reinforcing crushing function - Google Patents

Abstract

The utility model discloses a screw extruder with an enhanced crushing function, which comprises: the left end of the charging barrel is provided with an extrusion material feeding hole, and the right end of the charging barrel is provided with an extrusion material discharging hole; the screw rod is rotatably arranged in the charging barrel and is arranged along the length direction of the charging barrel; the free ends of the bulges extend into between adjacent screw grooves of the screw rod; the crushing device comprises a crushing cylinder, a filter plate and a crushing structure, wherein the crushing cylinder is arranged above the extrusion material feeding port, the crushing structure is arranged in the crushing cylinder, the filter plate is arranged in the crushing cylinder and positioned below the crushing structure, and the crushing material feeding port is arranged above the crushing cylinder. The utility model can crush the materials twice, thus greatly enhancing the mixing and crushing effect of the materials.

Description

Screw extruder with reinforcing crushing function

Technical Field

The utility model belongs to the field of plastic extrusion equipment. More particularly, the present utility model relates to a screw extruder having an enhanced pulverizing function.

Background

In the field of plastic processing, a screw extruder is the most commonly used mixed molding equipment, and is often matched with various plastic molding auxiliary machines to form various plastic extrusion molding production lines so as to produce various plastic products. Therefore, screw extruders are widely used in the plastics processing industry. For example, CN107186914 a-plastic granulator extrusion mechanism is provided with an electric cylinder, a movable blade, a fixed blade, a first motor, a connecting shaft, a first filter screen, a vibrating motor and a feeding box, and the design realizes that the plastic raw materials are fully crushed, the crushed materials fall to the bottom of the feeding box through the first filter screen, and then enter the extrusion box through the bottom of the feeding box. However, when the blanking amount of the first filter screen is large, the material is easy to block at the joint of the feeding box body and the extrusion box body, so that the material is difficult to enter the extrusion box body.

Disclosure of Invention

It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.

An object of the present utility model is to provide a screw extruder with an enhanced pulverizing function, which is capable of pulverizing a material twice, greatly enhancing the mixing pulverizing effect of the material.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a screw extruder having an enhanced pulverizing function, comprising:

the left end of the charging barrel is provided with an extrusion material feeding hole, and the right end of the charging barrel is provided with an extrusion material discharging hole;

the screw rod is rotatably arranged in the charging barrel and is arranged along the length direction of the charging barrel;

the free ends of the bulges extend into between adjacent screw grooves of the screw rod;

the crushing device comprises a crushing cylinder, a filter plate and a crushing structure, wherein the crushing cylinder is arranged above the extrusion material feeding port, the crushing structure is arranged in the crushing cylinder, the filter plate is arranged in the crushing cylinder and positioned below the crushing structure, and the crushing material feeding port is arranged above the crushing cylinder.

Preferably, a vibrating block is arranged below the filter plate.

Preferably, the screw is fixedly connected with the first motor.

Preferably, the crushing structure comprises a rotating shaft and a plurality of blades, the rotating shaft penetrates through the crushing cylinder, the blades are arranged on the rotating shaft at intervals, and the rotating shaft is fixedly connected with the second motor.

Preferably, a material inlet blocking preventing structure is arranged below the extrusion material inlet.

Preferably, the anti-blocking structure of the feed port comprises a pair of anti-blocking rods and a groove, wherein the anti-blocking rods are arranged on the screw and are opposite to the position of the feed port of the extrusion material, the groove is arranged on the feed cylinder and is opposite to the position of the anti-blocking rods, and the anti-blocking rods extend out of the feed port of the extrusion material and enter the feed hopper above the feed port of the extrusion material.

Preferably, the feed cylinder comprises a left feed cylinder and a right feed cylinder which are fixedly connected, a plurality of first connecting lugs are arranged on the left feed cylinder, a plurality of second connecting lugs are arranged on the right feed cylinder, the positions of the first connecting lugs and the positions of the second connecting lugs are opposite, and the first connecting lugs and the second connecting lugs are fixedly connected through bolts.

Preferably, the cross section of the filter plate is semicircular.

The utility model at least comprises the following beneficial effects:

firstly, the crushing device is used for primarily crushing materials, the primarily crushed materials are secondarily crushed in the charging barrel by the shearing force generated by the screw rod, and the mixing crushing effect on the materials is greatly enhanced by twice crushing.

Secondly, the anti-blocking structure is arranged, and the anti-blocking rod is driven to rotate at the feeding hole by rotation of the screw rod, so that the blocking of materials at the feeding hole can be effectively avoided.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

1. A charging barrel; 2. an extrusion material discharge port; 3. a screw; 4. a protrusion; 5. a crushing cylinder; 6. a filter plate; 7. a vibrating block; 8. a crushed material feed inlet; 9. a first motor; 10. a cutting knife; 11. a rotating shaft; 12. a blocking prevention rod; 13. a groove; 14. a second motor; 15. a feed hopper; 16. and extruding a material feeding hole.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The terms "transverse," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description of the present utility model based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1, the present utility model provides a screw 3 extruder with an enhanced pulverizing function, comprising:

the feeding device comprises a charging barrel 1, wherein an extrusion material feeding hole 16 is formed in the left end of the charging barrel 1, and an extrusion material discharging hole 2 is formed in the right end of the charging barrel 1;

a screw 3 rotatably provided in the cartridge 1 and provided along a length direction of the cartridge 1;

a plurality of bulges 4, wherein the bulges 4 are arranged on the inner side wall of the charging barrel 1 at intervals, and the free end of each bulge extends into the space between the adjacent screw grooves of the screw 3;

the crushing device comprises a crushing cylinder 5, a filter plate 6 and a crushing structure, wherein the crushing cylinder 5 is arranged above the extrusion material feed inlet 16, the crushing structure is arranged in the crushing cylinder 5, the filter plate 6 is arranged in the crushing cylinder 5 and is positioned below the crushing structure, and the crushing material feed inlet 8 is arranged above the crushing cylinder 5.

In this embodiment, the barrel 1 may be a cylindrical barrel structure, and the extrusion feed port 16 is disposed above the left end of the barrel 1, and the material enters the barrel 1 through the extrusion feed port 16, is conveyed rightward by the screw 3, and is discharged through the extrusion discharge port 2 of the barrel 1. The pulverizing cylinder 5 may have a cylindrical structure. The crushing structure can be a cutter 10 driven by a rotating shaft 11. The material enters into crushing section of thick bamboo 5 from crushing feed inlet 8, is smashed for the first time under crushing structure's effect, and the first kibbling material enters into extrusion feed inlet 16 through filter 6, and the first kibbling material is sheared once more in crushing section of thick bamboo 5 and smashes, has realized the secondary mixing to the material and has smashed for the mixing of material smashes the effect more evenly, has improved the extrusion effect.

In another technical scheme, a vibrating block 7 is arranged below the filter plate 6. Vibration can be generated on the filter plate 6 by setting the vibration speed so as to facilitate the material to enter the extrusion material inlet 16 through the filter plate 6. In one embodiment, the periphery of the filter plate 6 is connected to the cartridge 1 by an elastic plastic to reduce the influence of vibration of the filter plate 6 on the cartridge 1.

In another embodiment, the screw 3 is fixedly connected to the first motor 9. The first motor 9 drives the screw 3 in rotation to drive the movement of material in the barrel 1. In some embodiments, a speed reducer may be disposed between the screw 3 and the first motor 9.

In another technical scheme, the crushing structure comprises a rotating shaft 11 and a plurality of blades, the rotating shaft 11 penetrates through the crushing cylinder 5, the blades are arranged on the rotating shaft 11 at intervals, and the rotating shaft 11 is fixedly connected with a second motor 14. In this embodiment, the crushing cylinder 5 may be transversely disposed, and the rotating shaft 11 is disposed along the length direction of the crushing cylinder 5, and the second motor 14 drives the rotating shaft 11 to rotate, so as to drive the blade to rotate to perform primary cutting and crushing on the material.

In another technical scheme, a material inlet blocking preventing structure is arranged below the extrusion material inlet 16. The aperture of the extrusion feed port 16 is small, and the problem that the extrusion feed port 16 is blocked by the material and is difficult to enter the feed cylinder 1 is easily caused. By arranging the material inlet blocking prevention structure, the blocking of the material at the extrusion material feeding inlet 16 is effectively avoided.

In another technical scheme, the anti-blocking structure of the feed port comprises a pair of anti-blocking rods 12 and a groove 13, wherein the anti-blocking rods 12 are arranged on the screw 3 and are opposite to the extrusion feed port 16, the groove 13 is arranged on the feed cylinder 1 and is opposite to the anti-blocking rods 12, and the anti-blocking rods 12 extend out of the extrusion feed port 16 and enter a feed hopper 15 above the extrusion feed port 16. According to the utility model, the anti-blocking rod 12 is driven to rotate at the extrusion material feeding port 16 by the screw 3, so that materials can be driven to enter the material cylinder 1, and the phenomenon that the materials are blocked at the extrusion material port and cannot enter the material cylinder 1 is effectively avoided.

In another technical scheme, the feed cylinder 1 is formed by fixedly connecting a left feed cylinder 1 and a right feed cylinder 1, a plurality of first connecting lugs are arranged on the left feed cylinder 1, a plurality of second connecting lugs are arranged on the right feed cylinder 1, the positions of the first connecting lugs and the second connecting lugs are opposite, and the first connecting lugs and the second connecting lugs are fixedly connected through bolts. According to the utility model, the charging barrel 1 is divided into the detachable left half and the detachable right half, so that the charging barrel 1 is convenient to detach, clean and maintain.

In another technical scheme, the section of the filter plate 6 is semicircular. According to the utility model, the filter plate 6 is arranged in a semicircular shape, so that the filtering area of the filter plate 6 can be increased, and the discharging effect of the filter plate 6 is improved.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (6)

1. Screw extruder with reinforcing crushing function, characterized by comprising:

the left end of the charging barrel is provided with an extrusion material feeding hole, and the right end of the charging barrel is provided with an extrusion material discharging hole;

the screw rod is rotatably arranged in the charging barrel and is arranged along the length direction of the charging barrel;

the free ends of the bulges extend into between adjacent screw grooves of the screw rod;

the crushing device comprises a crushing cylinder, a filter plate and a crushing structure, wherein the crushing cylinder is arranged above the extrusion material feeding hole, the crushing structure is arranged in the crushing cylinder, the filter plate is arranged in the crushing cylinder and is positioned below the crushing structure, and the crushing material feeding hole is arranged above the crushing cylinder;

the extrusion feeding device comprises a screw rod, wherein a feed inlet blocking prevention structure is arranged below the extrusion feeding inlet, the feed inlet blocking prevention structure comprises a pair of blocking prevention rods and a groove, the blocking prevention rods are arranged on the screw rod and are opposite to the extrusion feeding inlet in position, the groove is arranged on the feed cylinder and opposite to the blocking prevention rods in position, and the blocking prevention rods protrude out of the extrusion feeding inlet and enter a feed hopper above the extrusion feeding inlet.

2. The screw extruder with enhanced pulverizing function according to claim 1, wherein a vibrating block is provided below the filter plate.

3. The screw extruder with enhanced comminution function of claim 1 wherein the screw is fixedly connected to a first motor.

4. The screw extruder with enhanced comminution function of claim 1 wherein the comminution structure comprises a shaft and a plurality of blades, the shaft extending through the comminution barrel, the plurality of blades being spaced apart on the shaft, the shaft being fixedly connected to a second motor.

5. The screw extruder with the reinforcing and crushing functions according to claim 1, wherein the feed cylinder is formed by fixedly connecting a left feed cylinder and a right feed cylinder, a plurality of first connecting lugs are arranged on the left feed cylinder, a plurality of second connecting lugs are arranged on the right feed cylinder, the positions of the first connecting lugs and the second connecting lugs are opposite, and the first connecting lugs and the second connecting lugs are fixedly connected through bolts.

6. The screw extruder with enhanced pulverizing function according to claim 1, wherein the cross section of the filter plate is semicircular.

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