CN216941760U

CN216941760U - Double-screw extruder for plastic granules

Info

Publication number: CN216941760U
Application number: CN202220297331.6U
Authority: CN
Inventors: 吕志明; 麦晓彤; 吕胜祥
Original assignee: Foshan Hanwei New Material Co ltd
Current assignee: Foshan Hanwei New Material Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-12
Anticipated expiration: 2032-02-14

Abstract

The application relates to the field of plastic processing and discloses a double-screw extruder for plastic granules, which comprises the double-screw extruder and an extruding device arranged at the extruding end of the double-screw extruder, wherein the extruding device comprises a pressing plate, a discharging plate, a rotating ring, four pressing components, four die components and four fixing components. The utility model has the advantages that: through four mould subassemblies, can make the staff adjust the mould according to the size that oneself wanted, four subassembly of exerting pressure of rethread can make mould subassembly more firm, prevent the condition of weeping from appearing in the course of working, through fixed subassembly at last, can be quick install in dismantling extrusion device, conveniently damage or when dirty part, can dismantle fast to wash.

Description

Double-screw extruder for plastic granules

Technical Field

The application relates to the field of plastic processing, in particular to a double-screw extruder for plastic granules.

Background

The twin-screw extruder is developed on the basis of a single-screw extruder, and has the characteristics of good charging performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like, so that the twin-screw extruder is widely applied to molding processing of extruded products, in particular to the twin-screw extruder for processing plastic granules.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a double-screw extruder for plastic granules, which comprises a double-screw extruder and an extruding device arranged at the extruding end of the double-screw extruder, wherein the extruding device comprises a pressing plate, a discharging plate, a rotating ring, four pressing components, four die components and four fixing components, the discharging plate is provided with a discharging hole and four L-shaped sliding grooves with equal angles along the circumferential direction of the discharging plate, the pressing plate is positioned beside the discharging plate, one ends of the four pressing components are all arranged on the inner wall of the pressing plate, the other ends of the four pressing components are respectively connected with the four L-shaped sliding grooves, the four die components are arranged on the outer wall of one side of the discharging plate in a sliding manner along the circumferential direction of the discharging plate, the rotating ring can be rotatably arranged on the outer wall of the other side of the discharging plate, and the four fixing components are arranged on the inner wall of the discharging plate in a sliding manner along the circumferential direction of the rotating ring with equal angles, and one ends of the four fixing assemblies are connected with the rotating ring, and the other ends of the four fixing assemblies are inserted into the extruding end of the double-screw extruder.

Further, four the mould subassembly all includes mould valve, mould screw rod, spacing ring and mould piece, the spacing ring is installed on the outer wall of play flitch, the mould piece slides and sets up on the outer wall of play flitch, and the mould piece is located the below of spacing ring, mould screw rod cartridge is at the top of mould piece, and mould screw rod and mould piece threaded connection, the spacing ring cover is established on the mould screw rod, the mould valve sets up at the top of mould screw rod, every all be equipped with the mould hole on the mould piece, and the diameter in every mould hole is not of uniform size.

Furthermore, the four pressure applying assemblies respectively comprise a pressure applying rod, a clamping block and a clamping spring, the clamping block is arranged in the L-shaped sliding groove in a sliding mode, one end of the pressure applying rod is installed on the inner wall of the pressure plate, the other end of the pressure applying rod is connected with the clamping block, one end of the clamping spring is installed on the inner wall of the L-shaped sliding groove, and the other end of the clamping spring is connected with the pressure applying rod.

Furthermore, four fixed subassembly all includes fixed block, grafting piece, fixed spring and connecting wire, the fixed block is installed on the outer wall of play flitch, grafting piece and fixed spring are all installed in the fixed block, be equipped with on the double screw extruder with grafting piece matched with spliced eye, the grafting end of grafting piece extends to the fixed block outside, and the other end of grafting piece is connected with fixed spring, the one end of connecting wire is passed the spring and is connected with the grafting piece, the other end of connecting wire with run through the fixed block and be connected with the rotating ring.

Furthermore, a rotating rod is arranged on the outer wall of the rotating ring.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

when plastic grains with different sizes need to be processed, a worker rotates a needed mold valve to drive a mold screw to rotate, then the mold screw drives a mold block to move towards the discharge hole, so that the mold block is overlapped with the discharge hole, the mold blocks with different sizes are replaced, plastic grains with different sizes are processed, the working efficiency is improved, then when the worker replaces the mold block, the worker rotates a pressing plate to drive four pressing rods and four clamping blocks to slide along the direction of a sliding groove, at the moment, the clamping springs compress, and then the worker pulls the pressing plate outwards to enable the four pressing rods and the four clamping blocks to move upwards, when the worker replaces the mold block, otherwise, the degree of fit between the mold block and the discharge hole can be more compact, the situation of liquid leakage is not easy to occur during processing, and finally when the worker needs to disassemble and assemble the extrusion device, rotate the rotating ring through the staff and continuously exert pressure to the rotating ring, make four connecting wires remove and stimulate four grafting pieces and stretch, the fixed spring shrink this moment, the rethread staff inserts the end of extruding of twin-screw extruder in four grafting pieces, the staff loosens the rotating ring this moment, effort through fixed spring, make the grafting piece roll back, retreat in the spliced eye until the grafting piece, and accomplish fixedly, quick dismouting extrusion device, make machining efficiency further promote, through the above-mentioned operation, change mould that can be quick, also can disassemble extrusion device rapidly, and the work efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

FIG. 2 is a schematic perspective view of a twin-screw extruder according to the present invention;

FIG. 3 is a schematic perspective view of an extrusion apparatus according to the present invention;

FIG. 4 is a schematic view of a partial structure of an extrusion apparatus according to the present invention;

FIG. 5 is a schematic perspective view of a pressing assembly according to the present invention;

FIG. 6 is a perspective view of a mold assembly of the present invention;

FIG. 7 is a perspective view of the fixing member of the present invention;

fig. 8 is a partial structural view of the fixing member of the present invention.

In the figure, 1-double screw extruder, 2-extrusion device, 21-pressing plate, 22-discharging plate, 23-rotating ring, 24-pressing component, 241-pressing rod, 242-clamping block, 243-clamping spring, 25-mould component, 251-mould valve, 252-mould screw, 253-limiting ring, 254-mould block, 26-fixing component, 261-fixing block, 262-inserting block, 263-fixing spring, 264-connecting line and 27-rotating rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In this embodiment, as shown in fig. 1 to 8, a twin-screw extruder facing plastic pellets comprises a twin-screw extruder 1, and further comprises an extruding device 2 disposed at an extruding end of the twin-screw extruder 1, wherein the extruding device 2 comprises a pressing plate 21, a discharging plate 22, a rotating ring 23, four pressing components 24, four mold components 25, and four fixing components 26, the discharging plate 22 is provided with a discharging hole and four L-shaped sliding grooves which are equiangularly arranged along a circumferential direction thereof, the pressing plate 21 is located beside the discharging plate 22, one ends of the four pressing components 24 are all mounted on an inner wall of the pressing plate 21, the other ends of the four pressing components 24 are respectively connected with the four L-shaped sliding grooves, the four mold components 25 are slidably mounted on an outer wall of one side thereof at equiangularly arranged along the circumferential direction of the discharging plate 22, the rotating ring 23 is rotatably mounted on an outer wall of the other side of the discharging plate 22, the four fixing assemblies 26 are arranged on the inner wall of the rotating ring 23 at equal angles along the circumferential direction, one ends of the four fixing assemblies 26 are connected with the rotating ring 23, and the other ends of the four fixing assemblies 26 are inserted into the extruding end of the double-screw extruder 1.

Preferably, the four mold assemblies 25 each include a mold valve 251, a mold screw 252, a retainer ring 253, and a mold block 254, the retainer ring 253 is mounted on the outer wall of the discharge plate 22, the mold block 254 is slidably disposed on the outer wall of the discharge plate 22, the mold block 254 is located below the retainer ring 253, the mold screw 252 is inserted into the top of the mold block 254, the mold screw 252 is in threaded connection with the mold block 254, the retainer ring 253 is sleeved on the mold screw 252, the mold valve 251 is disposed on the top of the mold screw 252, each mold block 254 is provided with a mold hole, the diameter of each mold hole is different, when plastic granules with different sizes need to be processed, a worker rotates the required mold valve 251 to drive the mold screw 252 to rotate, and then the mold block 254 is driven by the mold screw 252 to move toward the discharge hole 254, so that the mold block coincides with the discharge hole, through the operation, the mould blocks 254 with different sizes can be replaced, plastic grains with different sizes are processed, and the working efficiency is improved.

Preferably, the four pressing assemblies 24 each include a pressing rod 241, an engaging block 242, and an engaging spring 243, the engaging block 242 is slidably disposed in the L-shaped sliding groove, one end of the pressing rod 241 is mounted on the inner wall of the pressing plate 21, the other end of the pressing rod 241 is connected to the engaging block 242, one end of the engaging spring 243 is mounted on the inner wall of the L-shaped sliding groove, and the other end of the engaging spring 243 is connected to the pressing rod 241, when the worker replaces the mold block 254, the worker rotates the pressing plate 21 to make the pressing plate 21 drive the four pressing rods 241 and the four engaging blocks 242 to slide along the direction of the sliding groove, at this time, the engaging spring 243 compresses, and then the worker pulls the pressing plate 21 outward to make the four pressing rods 241 and the four engaging blocks 242 move upward, when the worker replaces the mold block 254, otherwise, the same operation can make the degree of fit between the mold block 254 and the discharge hole more tightly, the liquid leakage is not easy to occur during processing.

Preferably, four of the fixing assemblies 26 each include a fixing block 261, an insertion block 262, a fixing spring 263 and a connecting wire 264, the fixing block 261 is installed on the outer wall of the discharge plate 22, the insertion block 262 and the fixing spring 263 are installed in the fixing block 261, the twin screw extruder 1 is provided with an insertion hole matched with the insertion block 262, the insertion end of the insertion block 262 extends to the outside of the fixing block 261, the other end of the insertion block 262 is connected with the fixing spring 263, one end of the connecting wire 264 passes through the fixing spring 263 and is connected with the insertion block 262, the other end of the connecting wire 264 is connected with the rotating ring 23 by penetrating through the fixing block 261, during operation, the rotating ring 23 is rotated by a worker and continuously presses the rotating ring 23, so that the four connecting wires 264 are moved and the four insertion blocks 262 are pulled to be extended, at this time, the fixing spring 263 is contracted, and the extrusion end of the twin screw extruder 1 is inserted into the four insertion blocks 262 by the worker, at this moment, the worker loosens the rotating ring 23, the inserting block 262 is retreated by the acting force of the fixing spring 263 until the inserting block 262 retreats into the inserting hole, and the fixing is completed, so that the extruding device 2 can be quickly disassembled and assembled, and the processing efficiency is further improved.

Preferably, a rotating rod 27 is arranged on the outer wall of the rotating ring 23, and the rotating ring 23 can be rotated more conveniently by a worker through the rotating rod 27.

The working process of the utility model is as follows: when plastic particles with different sizes need to be processed, a worker rotates a required mold valve 251 to drive a mold screw 252 to rotate, then the mold screw 252 drives a mold block 254 to move towards a discharge hole, so that the mold block 254 coincides with the discharge hole, then when the worker replaces the mold block 254, the worker rotates a pressing plate 21 to drive the pressing plate 21 to drive four pressing rods 241 and four clamping blocks 242 to slide along the direction of a sliding groove, at the moment, the clamping springs 243 compress, then the worker pulls the pressing plate 21 outwards to move the four pressing rods 241 and the four clamping blocks 242 upwards, finally, when the worker needs to disassemble and assemble the extrusion device 2, the worker rotates the rotating ring 23 and continuously presses the rotating ring 23 to move the four connecting wires 264 and pull the four splicing blocks 262 to stretch, at the moment, the fixed springs 263 shrink, and then the worker inserts the extrusion end of the twin-screw extruder 1 into the four splicing blocks 262, at this time, the worker releases the rotating ring 23, and the insertion block 262 is retracted by the acting force of the fixing spring 263 until the insertion block 262 is retracted into the insertion hole, and the fixing is completed.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A twin-screw extruder facing plastic pellets, comprising a twin-screw extruder (1), characterized in that: the extrusion device (2) is arranged on the extrusion end of the double-screw extruder (1), the extrusion device (2) comprises a pressing plate (21), a discharge plate (22), a rotating ring (23), four pressing components (24), four die components (25) and four fixing components (26), the discharge plate (22) is provided with a discharge hole and four L-shaped sliding grooves with equal angles along the circumferential direction of the discharge plate, the pressing plate (21) is positioned at the side of the discharge plate (22), one ends of the four pressing components (24) are all arranged on the inner wall of the pressing plate (21), the other ends of the four pressing components (24) are respectively connected with the four L-shaped sliding grooves, the four die components (25) are arranged on the outer wall of one side of the discharge plate (22) in a sliding manner along the equal angles along the circumferential direction of the discharge plate (22), the rotating ring (23) can be rotatably arranged on the outer wall of the other side of the discharge plate (22), the four fixing assemblies (26) are arranged on the inner wall of the double-screw extruder at equal angles along the circumferential direction of the rotating ring (23), one ends of the four fixing assemblies (26) are connected with the rotating ring (23), and the other ends of the four fixing assemblies (26) are inserted into the extruding end of the double-screw extruder (1).

2. A twin-screw extruder for plastic pellets as claimed in claim 1, wherein: the four die assemblies (25) respectively comprise a die valve (251), a die screw (252), a limiting ring (253) and a die block (254), the limiting ring (253) is installed on the outer wall of the discharge plate (22), the die block (254) is arranged on the outer wall of the discharge plate (22) in a sliding mode, the die block (254) is located below the limiting ring (253), the die screw (252) is inserted into the top of the die block (254), the die screw (252) is in threaded connection with the die block (254), the limiting ring (253) is sleeved on the die screw (252), the die valve (251) is arranged on the top of the die screw (252), each die block (254) is provided with a die hole, and the diameters of the die holes are different in size.

3. A twin-screw extruder for plastic pellets as claimed in claim 1, wherein: the four pressing components (24) respectively comprise a pressing rod (241), a clamping block (242) and a clamping spring (243), the clamping block (242) is arranged in the L-shaped sliding groove in a sliding mode, one end of the pressing rod (241) is installed on the inner wall of the pressing plate (21), the other end of the pressing rod (241) is connected with the clamping block (242), one end of the clamping spring (243) is installed on the inner wall of the L-shaped sliding groove, and the other end of the clamping spring (243) is connected with the pressing rod (241).

4. A twin-screw extruder for plastic pellets as claimed in claim 1, wherein: the four fixed components (26) comprise fixed blocks (261), inserting blocks (262), fixed springs (263) and connecting wires (264), the fixed blocks (261) are installed on the outer wall of the discharging plate (22), the inserting blocks (262) and the fixed springs (263) are installed in the fixed blocks (261), inserting holes matched with the inserting blocks (262) are formed in the double-screw extruder (1), the inserting ends of the inserting blocks (262) extend to the outside of the fixed blocks (261), the other ends of the inserting blocks (262) are connected with the fixed springs (263), one ends of the connecting wires (264) penetrate through the fixed springs (263) to be connected with the inserting blocks (262), and the other ends of the connecting wires (264) penetrate through the fixed blocks (261) to be connected with the rotating ring (23).

5. A twin-screw extruder for plastic pellets as claimed in claim 1, wherein: and a rotating rod (27) is arranged on the outer wall of the rotating ring (23).