CN216230684U

CN216230684U - PS plastics twin-screw extrusion device

Info

Publication number: CN216230684U
Application number: CN202122219302.6U
Authority: CN
Inventors: 周勇刚
Original assignee: Zhejiang Dongwu New Material Co ltd
Current assignee: Zhejiang Dongwu New Material Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-04-08
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a PS plastic double-screw extrusion device, which comprises a frame; the extruding machine is characterized in that the extruding machine comprises a motor and an extruding container which are distributed on the left and right sides and fixedly connected to the upper wall of the machine frame, the inner wall of the extruding container is rotatably connected with two groups of screw rods driven by the motor, and the upper wall of the extruding container is fixedly connected with a material barrel. According to the utility model, the guide sleeve and the slide rod are used for positioning and guiding, the extrusion die and the fixed plate are separated along the slide rod during maintenance, the extrusion die is not limited by the stop pin and can not fall off, then the extrusion die is rotated backwards along the rotating pin for maintenance, when the extrusion die needs to be disassembled, the stop pin is pushed into the inner side of the mounting groove by pushing the sliding sleeve, and the sliding sleeve is in threaded connection with the slide rod, so that the extrusion die can be completely pushed out, the assembly and disassembly are very convenient, the maintenance efficiency is greatly improved, the damping effect of buffering is formed by the damping pin and the damping hole during folding, the phenomenon of clamping hand during the traditional quick die assembly is avoided, and the safety is greatly improved.

Description

PS plastics twin-screw extrusion device

Technical Field

The utility model relates to the technical field of PS plastic production, in particular to a PS plastic double-screw extrusion device.

Background

The PS plastic double-screw extrusion device consists of an extrusion system, a feeding system and a heating and cooling system, wherein the extrusion system consists of two groups of screws, and the two groups of screws are driven by a motor. Besides double screws, the extrusion device also has a plurality of forms such as a single screw extruder and a multi-screw extruder, and the double screw extruder has good feeding characteristics and has better mixing, exhausting, reacting and self-cleaning functions than the single screw extruder.

On extrusion tooling among the current PS plastics twin-screw extrusion device passes through the bolt fastening in the feed cylinder export, in case break down, maintainer need dismantle extrusion tooling from the feed cylinder export earlier through the instrument, could maintain extrusion tooling after separating completely, need reuse tools such as hydraulic pressure car after maintaining and overhaul to raise extrusion tooling and install again with the same height of feed cylinder export, troublesome poeration influences production, and it is big to improve the space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a PS plastic twin-screw extrusion device.

In order to achieve the purpose, the utility model adopts the following technical scheme: the PS plastic double-screw extrusion device comprises a frame; the motor and the extrusion cylinder are fixedly connected to the upper wall of the rack in a left-right distribution manner, two groups of screw rods driven by the motor are rotatably connected to the inner wall of the extrusion cylinder, and the upper wall of the extrusion cylinder is fixedly connected with a charging barrel; the fixing plate is fixedly connected to one side of the extrusion container, which is far away from the motor; the extruding die is fixedly connected to one side, away from the extruding container, of the fixed plate, a guide assembly convenient for installation and maintenance of the extruding die and a rotating structure for rotation of the guide assembly are arranged between the fixed plate and the extruding die, and a hand clamping preventing structure for preventing clamping when the extruding die is installed is further arranged between the fixed plate and the extruding die; the anti-falling component is arranged on the guide component and used for preventing the extrusion die from falling off during maintenance and the press pin component used for pressing the anti-falling component down during replacement of the extrusion die.

As a further description of the above technical solution:

the rotating structure comprises a rotating pin, two groups of steps and a rotating sleeve, the steps are arranged on the upper wall and the lower wall of the fixing plate respectively and are located at the joint of the rear wall and the right side wall, the rotating pin is rotatably connected to the inner wall of the fixing plate and two ends of the inner wall of the fixing plate respectively and penetrates through the inner wall of the fixing plate to extend to the inner sides of the two groups of steps, and the rotating sleeve is fixedly connected to two ends of the rotating pin extending out of the two groups of steps respectively.

As a further description of the above technical solution:

the guide assembly comprises two groups of slide rods and guide sleeves, the two groups of slide rods are respectively and fixedly connected to the outer walls of the two groups of rotating sleeves, the guide sleeves are vertically distributed and fixedly connected to the inner wall of the extrusion die and close to the rear wall, and the inner side wall of each guide sleeve is in sliding connection with the outer wall of one end, far away from the rotating sleeve, of the two groups of slide rods.

As a further description of the above technical solution:

the anticreep subassembly includes auxiliary rod, backing pin, mounting groove and jump ring, auxiliary rod fixed connection keeps away from the tip that rotates the cover at the slide bar, the mounting groove sets up at the auxiliary rod inner wall and runs through the auxiliary rod upper wall, jump ring, backing pin are all beaten the screw rotation through the stopper and are connected in the mounting groove inboard and be close to inboard lower wall and inboard right wall handing-over department, the equal joint of arm is stretched out at the backing pin between one side and the mounting groove lower wall towards the slide bar to jump ring two.

As a further description of the above technical solution:

the pressure pin assembly comprises a sliding sleeve and an end cover, the end cover is fixedly connected to the end portion, far away from the sliding rod, of the auxiliary rod, the sliding sleeve is connected to the outer wall of the auxiliary rod in a sliding mode and located between the stop pin and the end cover, and the inner side wall and the outer wall of one side, opposite to the sliding rod, of the sliding sleeve are respectively provided with an internal thread and an external thread which are in threaded connection with each other.

As a further description of the above technical solution:

prevent tong structure includes damping pin, damping hole, damping pin fixed connection just is close to the position of antetheca in one side of extrusion tooling towards the fixed plate, the damping hole sets up in one side of fixed plate towards extrusion tooling and the position relative with the damping pin, the damping pin is close zero clearance with damping hole sliding connection and fit clearance.

The utility model has the following beneficial effects:

1. compared with the prior art, this PS plastics twin-screw extrusion device, fix a position the direction through leading cover and slide bar, during the maintenance, will extrude mould and fixed plate separation along the slide bar, extrude mould can not drop through the restriction of backing pin, it can expose the extrusion mould left surface and overhaul to rotate extrusion mould backward along the rotating pin again, adjust well and fold after the maintenance is finished and can fix, when extrusion mould is dismantled to needs, it pushes the mounting groove inboard to keep off the round pin through the sliding sleeve, and with sliding sleeve and slide bar threaded connection, can release the slide bar completely with extrusion mould and do not receive the restriction of backing pin, it is all very convenient to load and unload, the maintenance efficiency is greatly improved.

2. Compared with the prior art, when the PS plastic double-screw extrusion device pushes the extrusion die to the fixed plate along the slide bar, because the fit clearance of the damping pin and the damping hole is close to a zero clearance, air in the hole can not be discharged in time to form a damping effect of buffering, the phenomenon of clamping hands during the conventional quick die assembly is avoided, and the safety is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a PS plastic twin-screw extrusion device provided by the utility model;

FIG. 2 is an enlarged view of a portion of the PS plastic twin-screw extrusion device of the present invention at A in FIG. 1;

FIG. 3 is a top view of a maintenance state of a fixing plate and an extrusion mold of the PS plastic twin-screw extrusion device according to the present invention;

FIG. 4 is a top sectional view of a partial structure of a PS plastic twin-screw extrusion device according to the present invention in a state where a fixing plate and an extrusion mold are closed;

FIG. 5 is a partial enlarged view at B in FIG. 4 of a PS plastic twin-screw extrusion apparatus according to the present invention;

FIG. 6 is a schematic structural view of a damping pin of the PS plastic twin-screw extrusion device provided by the utility model;

FIG. 7 is a partial structural sectional view of the stop pin of the PS plastic twin-screw extrusion device according to the present invention in an operating state;

FIG. 8 is a partial structural sectional view showing the working state of a press pin assembly of the PS plastic twin-screw extrusion device according to the present invention.

Illustration of the drawings:

1. a frame; 2. a motor; 3. an extrusion cylinder; 4. a charging barrel; 5. a fixing plate; 6. extruding the mould; 7. a slide bar; 8. an auxiliary rod; 9. a stop pin; 10. a sliding sleeve; 11. an end cap; 12. a step; 13. rotating the sleeve; 14. a rotation pin; 15. a guide sleeve; 16. a damper pin; 17. a damping hole; 18. mounting grooves; 19. a clamp spring; 20. and (5) plugging and screwing screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1 to 8, the present invention provides a PS plastic twin-screw extrusion apparatus: comprises a frame 1; the motor 2 and the extrusion cylinder 3 which are fixedly connected to the upper wall of the frame 1 are distributed in a left-right mode, the inner wall of the extrusion cylinder 3 is rotatably connected with two groups of screw rods driven by the motor 2, the upper wall of the extrusion cylinder 3 is fixedly connected with a charging barrel 4, feeding is carried out through the charging barrel 4, heating and heat preservation are carried out through a heating and cooling system arranged on the outer wall of the extrusion cylinder 3, and the screw rods are driven by the motor 2 to extrude materials; the fixing plate 5 is fixedly connected to one side of the extrusion container 3 away from the motor 2; the extruding die is characterized in that the extruding die 6 is fixedly connected to one side, away from the extruding cylinder 3, of the fixing plate 5, a guide component convenient for installation and maintenance of the extruding die 6 and a rotating structure for rotation of the guide component are arranged between the fixing plate 5 and the extruding die 6, and a hand clamping preventing structure for preventing clamping when the extruding die 6 is installed is further arranged between the fixing plate 5 and the extruding die 6; the anti-falling component is arranged on the guide component and used for preventing the extrusion die 6 from falling off during maintenance and the press pin component used for pressing the anti-falling component down during replacement of the extrusion die 6.

Rotating-structure includes rotating pin 14, two sets of steps 12 and rotation cover 13, two sets of steps 12 set up respectively at fixed plate 5 upper wall and lower wall and all are located back wall and right side wall handing-over department, rotating pin 14 rotates to be connected and runs through fixed plate 5 inner wall respectively at fixed plate 5 inner wall and both ends and extend to two sets of steps 12 inboardly, two sets of rotation covers 13 respectively fixed connection at the both ends that rotating pin 14 stretches out two sets of

steps

12, 6 sliding connection of extrusion tooling is when slide bar 7 outer wall, can rotate along rotating pin 14.

Lead the subassembly and include two sets of slide bars 7, lead and just overlap 15, two sets of slide bars 7 are fixed connection respectively at two sets of 13 outer walls that rotate the cover, and two sets of cover 15 that lead distribute fixed connection about and just are close to the back wall position at extrusion tooling 6 inner wall, and two sets of cover 15 inside walls that lead keep away from the one end outer wall sliding connection who rotates cover 13 with two sets of slide bars 7, during the first installation, lead through leading cover 15 and slide bar 7 and just install.

Anticreep subassembly includes deputy rod 8, backing pin 9, mounting groove 18 and jump ring 19, the tip of rotating cover 13 is kept away from at slide bar 7 to deputy rod 8 fixed connection, mounting groove 18 sets up at deputy rod 8 inner wall and runs through deputy rod 8 upper wall, jump ring 19, backing pin 9 all beats screw 20 through the stopper and rotates to connect at the mounting groove 18 inboard and be close to inboard lower wall and inboard right wall handing-over department, 19 two equal joints of arm that stretch out of jump ring are between one side and the mounting groove 18 lower wall of backing pin 9 towards slide bar 7, backing pin 9 can only rotate and income mounting groove 18 inboardly towards fixed plate 5 one side, 18 inboard right wall restriction backing pin 9 of mounting groove can't rotate towards the one side of keeping away from fixed plate 5, thereby restriction extrusion tooling 6 can not drop.

The pressure pin subassembly includes sliding sleeve 10, end cover 11 fixed connection is at the tip that slide bar 7 was kept away from to auxiliary rod 8, sliding sleeve 10 sliding connection just is located between backing pin 9 and end cover 11 at auxiliary rod 8 outer wall, the inside wall of the relative one side of sliding sleeve 10 and slide bar 7, the outer wall is provided with screw thread connection's each other internal thread and external screw thread respectively, when extrusion tooling 6 need be pushed down, can be inboard with backing pin 9 mounting groove 18 impresses through promoting sliding sleeve 10, it is unimpeded when making extrusion tooling 6 push down.

Prevent tong structure includes damp pin 16,

damping hole

17, 16 fixed connection of damp pin is at extrusion tooling 6 towards one side of fixed plate 5 and the position that is close to the antetheca, damping hole 17 sets up at fixed plate 5 towards one side of extrusion tooling 6 and the position relative with damping pin 16, damping pin 16 is close zero clearance with 17 sliding connection in damping hole and cooperation clearance, because damping pin 16 is close zero clearance with damping hole 17's cooperation clearance, air can not in time discharge in the damping hole 17, will form the damping effect of buffering, must slowly promote just can fold, the tong phenomenon that appears when having avoided quick compound die in the past, the security improves greatly.

The working principle is as follows: when the extrusion die 6 is needed to be maintained, the extrusion die 6 is separated from the fixed plate 5 along the slide rod 7 after the screw is disassembled, the extrusion die 6 is limited by the stop pin 9 and cannot fall off, when the damping pin 16 completely exits the damping hole 17, the extrusion die 6 is rotated backwards along the rotating pin 14, the left side surface of the extrusion die 6 can be exposed for maintenance, after the maintenance is finished, the extrusion die 6 can be fixed according to the same alignment and folding of the initial die assembly, when the extrusion die 6 needs to be disassembled, the sliding sleeve 10 is pushed towards one end of the stop pin 9, the stop pin 9 is pushed into the inner side of the mounting groove 18, and the sliding sleeve 10 is in threaded connection with the slide rod 7, can release slide bar 7 completely with extrusion tooling 6 and not restricted by backing pin 9, it is all very convenient to load and unload, the efficiency of overhaul is greatly improved, damping pin 16 is close zero clearance with damping hole 17 sliding connection and fit clearance, because damping pin 16 is close zero clearance with damping hole 17's fit clearance, air can not in time discharge in the damping hole 17, the damping effect of buffering will be formed, must slowly promote just can fold, the tong phenomenon that appears when having avoided fast compound die in the past, the security improves greatly.

Finally, it should be noted that: 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 utility model.

Claims

The PS plastic double-screw extrusion device is characterized in that: comprises a frame (1);

the motor (2) and the extrusion cylinder (3) are fixedly connected to the upper wall of the rack (1) in a left-right distribution manner, two groups of screw rods driven by the motor (2) are rotatably connected to the inner wall of the extrusion cylinder (3), and the upper wall of the extrusion cylinder (3) is fixedly connected with a charging barrel (4);

the fixing plate (5) is fixedly connected to one side, far away from the motor (2), of the extrusion cylinder (3);

the extrusion die (6) is fixedly connected to one side, away from the extrusion container (3), of the fixing plate (5), a guide component convenient for installation and maintenance of the extrusion die (6) and a rotating structure for rotation of the guide component are arranged between the fixing plate (5) and the extrusion die (6), and a hand clamping prevention structure for preventing clamping when the extrusion die (6) is installed is further arranged between the fixing plate (5) and the extrusion die (6);

the anti-falling component is arranged on the guide component and used for preventing the extrusion die (6) from falling off during maintenance and the press pin component used for pressing the anti-falling component down during replacement of the extrusion die (6).
2. The PS plastic twin screw extrusion apparatus of claim 1, wherein: rotating-structure includes rotating pin (14), two sets of step (12) and rotates cover (13), and is two sets of step (12) set up respectively at fixed plate (5) upper wall and lower wall and all are located back wall and right side wall handing-over department, rotating pin (14) rotate to connect and run through fixed plate (5) inner wall respectively at fixed plate (5) inner wall and both ends and extend to two sets of step (12) inboards, and are two sets of it is two sets of to rotate cover (13) fixed connection respectively and stretch out the both ends of two sets of step (12) at rotating pin (14).
3. The PS plastic twin screw extrusion apparatus of claim 2, wherein: lead positive subassembly and include two sets of slide bars (7), lead positive cover (15), it is two sets of slide bar (7) fixed connection is respectively at two sets of rotation cover (13) outer walls, and is two sets of lead positive cover (15) and be upper and lower distribution fixed connection and just be close to back wall position at extrusion tooling (6) inner wall, it is two sets of lead positive cover (15) inside wall and two sets of slide bars (7) and keep away from the one end outer wall sliding connection who rotates cover (13).
4. The PS plastic twin screw extrusion apparatus of claim 3, wherein: anticreep subassembly includes auxiliary rod (8), backing pin (9), mounting groove (18) and jump ring (19), the tip of rotating cover (13) is kept away from in slide bar (7) to auxiliary rod (8) fixed connection, mounting groove (18) set up at auxiliary rod (8) inner wall and run through auxiliary rod (8) upper wall, jump ring (19), backing pin (9) are all beaten screw (20) through the stopper and are rotated and connect in mounting groove (18) inboard and be close to inboard lower wall and inboard right wall handing-over department, jump ring (19) two stretch out the equal joint of arm and are being held round pin (9) towards between one side of slide bar (7) and mounting groove (18) lower wall.
5. The PS plastic twin screw extrusion apparatus of claim 4, wherein: the pressure round pin subassembly includes sliding sleeve (10), end cover (11), the tip of slide bar (7) is kept away from in auxiliary rod (8) to end cover (11) fixed connection, sliding sleeve (10) sliding connection just is located between backing pin (9) and end cover (11) at auxiliary rod (8) outer wall, but sliding sleeve (10) and slide bar (7) relative inside wall, the outer wall of one side are provided with internal thread and the external screw thread that can mutual threaded connection respectively.
6. The PS plastic twin screw extrusion apparatus of claim 5, wherein: prevent tong structure includes damping pin (16), damping hole (17), damping pin (16) fixed connection is at extrusion tooling (6) one side of orientation fixed plate (5) and the position that is close to the antetheca, damping hole (17) set up in fixed plate (5) one side of orientation extrusion tooling (6) and with damping pin (16) relative position, damping pin (16) are close zero clearance with damping hole (17) sliding connection and fit clearance.