CN218019777U

CN218019777U - Double-screw machine convenient to clean

Info

Publication number: CN218019777U
Application number: CN202221350947.1U
Authority: CN
Inventors: 肖坚俊
Original assignee: Dongguan Guoheng Plastic Science & Technology Co ltd
Current assignee: Dongguan Guoheng Plastic Science & Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-12-13
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to the technical field of injection molding equipment, and discloses a double-screw machine convenient to clean, which comprises a base and a mixing drum, wherein the rear part of the base is fixedly connected with a placing table, a separating mechanism is arranged beside the mixing drum, a mixing mechanism is arranged at the rear part of the mixing drum, and a rotating cavity is arranged at the inner middle part of the placing table; separating mechanism includes top cover and pneumatic cylinder, and top cover passes through hinge connection with the mixing drum, and the inside both sides of mixing drum all are provided with the screw rod, the equal fixedly connected with slot in rear end middle part of screw rod, and the equal block of slot is connected with the inserted block, and the inserted block all sets up at driven gear's front end middle part, and mixing drum fixed connection removes the tray, and top cover fixedly connected with connecting block, connecting block pass through the connecting bolt with removing the tray and are connected. The hydraulic cylinder pushes the movable supporting block to move in the sliding groove, so that a slot at the rear end of a screw rod in the mixing cylinder is separated from an inserting block at the front end of the driven gear, then the limitation of the connecting block is removed, and the top cylinder cover is lifted, so that the mixing cylinder can be cleaned or maintained.

Description

Double-screw machine convenient to clean

Technical Field

The utility model relates to an injection moulding equipment technical field especially relates to the twin-screw machine of convenient clearance.

Background

The injection molding equipment of an injection molding machine can be generally divided into three modes of plunger type, screw type and screw plunger type, the screw type injection molding equipment is generally a screw machine, and the working principle of the screw type injection molding equipment is that viscous plastic heated to a molten state is forcibly injected into a mold cavity by means of thrust on materials in the rotating process of the screw machine.

The existing screw machine for feeding of the injection molding machine has the following defects in use, firstly, injection molding equipment in the existing market generally adopts a single screw machine for feeding, the feeding amount of the single screw machine is small, once materials are not discharged in time, the screw is easy to block and difficult to clean, and the damaged screw is difficult to disassemble and maintain; secondly, the existing single-screw machine has poor material mixing performance, inconvenient feeding, narrow transportation space and uneven material particle mixing; thirdly, when the high-viscosity additive is adopted, the interior of the high-viscosity additive is inconvenient to clean after long-time use, and the stability of subsequent production is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the convenient twin-screw machine of clearing up that proposes, separating mechanism lifts the jack-top lid through rotating, realizes having cleared up the screw rod is convenient, utilizes removal tray and pneumatic cylinder quickly separating screw rod simultaneously, and convenient to overhaul changes, and compounding mechanism passes through puddler and compounding pole in addition to the raw materials stirring, and the stirring of cooperation twin-screw is more even, utilizes the spiral leaf to stabilize the feeding and prevents that the feeding is too much blockked up, and the feeding is convenient.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the double-screw machine convenient to clean comprises a base and a mixing drum, wherein the rear part of the base is fixedly connected with a placing table, a separating mechanism is arranged beside the mixing drum, a mixing mechanism is arranged at the rear part of the mixing drum, and a rotating cavity is arranged in the middle of the placing table;

separating mechanism includes a top cover and a hydraulic cylinder, and the top cover passes through hinge connection with the mixing drum, and the inside both sides of mixing drum all are provided with the screw rod, the equal fixedly connected with slot in rear end middle part of screw rod, and the equal block in slot is connected with the inserted block, and the inserted block all sets up at driven gear's front end middle part, and mixing drum fixed connection removes the tray, and a top cover fixedly connected with connecting block, connecting block pass through the connecting bolt with removing the tray and are connected.

Further, the material mixing mechanism comprises a material inlet barrel, a second motor is arranged at the top end of the material inlet barrel, a rotating rod is fixedly connected to the output end of the second motor, a plurality of stirring rods are fixed on the rotating rod, spiral blades are arranged on the lower portion of the rod body of the rotating rod, and a plurality of dry mixing rods are arranged on the upper portions of two side walls in the mixing barrel.

Through above-mentioned technical scheme, when pan feeding bucket is inside to be filled a large amount of granules of moulding plastics, rotate through second motor drive bull stick, the bull stick drives the puddler and tentatively stirs in the plastic granules whereabouts, slowly send into mixing drum and top cover through the pan feeding mouth with a small amount of material in the spiral leaf rotation of bull stick lower part simultaneously, by the screw rod onward transport, the material rolls and carries and constantly separates the misce bene back through the mixing pole in the material roll, melts by the heating band heating, and then is ejected by the thrust extrusion of screw rod.

Furtherly, the bottom sliding connection of removal tray is in the inside of spout, and the spout setting is at the top middle part of base. The sliding groove is used for moving the movable slide way used by the movable support block for moving the dismounting screw rod, and space is provided for dismounting the screw rod.

Furthermore, the inside both sides of rotating the chamber all rotate and are connected with driven gear, are provided with the driving gear between the driven gear, and the both sides of driving gear all mesh and connect in one side of driven gear. The driving gear is meshed with and rotates in the middle position between the driven gears, the first motor drives the driving gear to rotate, the driven gears further rotate in the same direction, and the screw rods further rotate in the same direction.

Furthermore, the rear end of the driving gear is fixedly connected with a first motor, and the front end of the first motor is fixedly connected with the middle part of the rear end of the mounting table. The first motor is used as a driving source for the rotation of the screw rod, and the driving gear is meshed with the driven gear to rotate so as to enable the screw rod to rotate.

Further, the movable supporting block is connected with a hydraulic cylinder. The hydraulic cylinder moves in the sliding groove by pushing the movable supporting block, so that space for disassembling the screw rod is provided, and the top cylinder cover can be conveniently opened to clean residual materials.

Furthermore, the front part of the bottom end of the mixing cylinder is provided with a plurality of heating belts which are uniformly distributed. The heating belt is used for heating the mixing cylinder, melting plastic particles, reducing the adhesion of the plastic particles, and facilitating the moving and conveying as well as the later injection molding.

Furthermore, a feeding port is arranged in the middle of the rear part of the bottom end of the mixing cylinder. The feeding port receives raw material particles stirred in the feeding barrel, and the raw material particles are arranged on the upper portion of the top barrel cover, so that the moving and the dismounting of the top barrel cover are not influenced.

The utility model discloses following beneficial effect has: when the double-screw machine is used and needs to clean residual materials inside, the hydraulic cylinder pushes the movable supporting block to move in the sliding groove, the movable supporting block moves forwards to drive the mixing cylinder and the screw rod in the mixing cylinder to move together, the slot at the rear end of the screw rod is separated from the inserting block at the front end of the driven gear, the connecting bolt is unscrewed afterwards, the limitation of the connecting block is removed, the top cylinder cover is lifted, the residual materials in the mixing cylinder can be cleaned, and the screw rod is taken out for maintenance.

Drawings

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

fig. 2 is a top view of the mixing drum of the present invention;

FIG. 3 is a side sectional view of the feeding barrel of the present invention;

FIG. 4 is an enlarged view at A in FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 2;

fig. 6 is an enlarged view at C in fig. 1.

Illustration of the drawings: 1. a base; 2. a screw; 3. a separating mechanism; 301. a cylinder top cover; 302. a connecting bolt; 303. moving the supporting block; 304. a chute; 305. a connecting rod; 306. connecting blocks; 307. a hydraulic cylinder; 308. a hinge; 309. inserting a block; 310. a slot; 4. a mixing drum; 5. a feeding port; 6. a silica gel sealing strip; 7. a placing table; 8. a material mixing mechanism; 801. a cross plate; 802. a charging barrel; 803. a rotating rod; 804. a stirring rod; 805. helical leaves; 806. a second motor; 807. a mixing rod; 9. a fixing plate; 10. a driven gear; 11. a rotation chamber; 12. a driving gear; 13. heating the tape; 14. a first motor.

Detailed Description

Referring to fig. 1-6, the present invention provides an embodiment: double screw extruder of convenient clearance, including base 1 and mixing drum 4, rear portion fixedly connected with arrangement platform 7 in the top of base 1, the top of base 1 is provided with separating mechanism 3, and the rear portion is provided with compounding mechanism 8 in the top of mixing drum 4, and the interior middle part of arranging platform 7 is provided with rotates chamber 11, and the top both sides of mixing drum 4 all are provided with silica gel sealing strip 6, and is high temperature resistant, prevents that the raw materials from leaking.

The utility model discloses a separating mechanism 3 includes top cover 301 and pneumatic cylinder 307, all is connected through hinge 308 around one side of top cover 301 and the homonymy of mixing drum 4, hinge 308 all sets up around the left side upper portion of mixing drum 4, the inside both sides of mixing drum 4 all are provided with screw rod 2, the equal fixedly connected with slot 310 in rear end middle part of screw rod 2, the equal block of slot 310 is connected with inserted block 309, inserted block 309 all sets up the front end middle part at driven gear 10.

The utility model discloses a removal tray 303 of bottom middle part and anterior equal fixed connection of mixing drum 4 is connected through connecting rod 305 between two removal trays 303, and the middle part and the anterior equal fixedly connected with connecting block 306 of top cover 301, connecting block 306 pass through the connecting bolt 302 with removal tray 303 and are connected.

The utility model discloses a compounding mechanism 8 is including going into storage bucket 802, middle part fixedly connected with fixed plate 9 before settling platform 7's the top, the middle part of the interior anterior fixed connection of fixed plate 9 at going into storage bucket 802, the interior top fixedly connected with cross 801 of going into storage bucket 802, the top middle part of cross 801 is provided with second motor 806, the output of second motor 806 runs through cross 801 and fixedly connected with bull stick 803, the even puddler 804 of a plurality of distributions of equal fixedly connected with around the middle part of bull stick 803, the pole body lower part of bull stick 803 is provided with spiral leaf 805, the inside both sides wall upper portion of mixing drum 4 all is provided with a plurality of even compounding poles 807 of distribution.

The utility model discloses an during the inside a large amount of granules of moulding plastics that fill of pan feeding bucket 802, rotate through second motor 806 drive bull stick 803, bull stick 803 drives puddler 804 and carries out preliminary mixing in the plastic granules whereabouts, simultaneously during helical blade 805 of bull stick 803 lower part rotates slowly send into a small amount of material through pan feeding mouth 5 in mixing drum 4 and the top cover 301, by screw rod 2 transport forward, after the continuous separation misce bene of material mixing pole 807 in the material roll transport, melt by the heating of heating zone 13, and then jet out by screw rod 2's thrust extrusion.

The utility model discloses a bottom sliding connection of removal tray 303 is in the inside of spout 304, spout 304 sets up the top middle part at base 1, spout 304 is used for removing tray 303 and removes the removal slide that unloads screw rod 2 and use, give screw rod 2 and dismantle the space, the inside both sides that rotate chamber 11 all rotate and are connected with driven gear 10, be provided with driving gear 12 between the driven gear 10, the both sides of driving gear 12 all mesh and connect in one side of driven gear 10, the middle part position of driving gear 12 meshing rotation between driven gear 10.

The driving gear 12 is driven by a first motor 14 to rotate, so that the driven gear 10 and the screw 2 rotate in the same direction, the first motor 14 is fixedly connected to the rear end of the driving gear 12, and the front end of the first motor 14 is fixedly connected to the middle of the rear end of the placing table 7.

One of the movable supporting blocks 303 of the utility model is connected with a hydraulic cylinder 307, the hydraulic cylinder 307 pushes the movable supporting block 303 to move in the chute 304, thereby providing space for disassembling the screw rod 2 and being convenient for opening the top cylinder cover 301 to clean residual materials,

the utility model discloses a bottom front portion of mixing drum 4 is provided with the even heating tape 13 of a plurality of distributions, and heating tape 13 is used for heating mixing drum 4, and melting plastic granules reduces its adhesion, and when being convenient for remove the transport, the later stage of also being convenient for is moulded plastics, and the middle part is provided with pan feeding mouth 5 behind the bottom of mixing drum 4, and the raw materials granule of the inside stirring of charging bucket 802 is accepted to pan feeding mouth 5, and it sets up on top cover 301 upper portion, does not influence the removal of top cover 301 and dismantles.

The utility model discloses an during the inside a large amount of granules of moulding plastics that fill of pan feeding bucket 802, rotate through second motor 806 drive bull stick 803, bull stick 803 drives puddler 804 and carries out preliminary mixing in the plastic granules whereabouts, simultaneously during helical blade 805 of bull stick 803 lower part rotates slowly send into a small amount of material through pan feeding mouth 5 in mixing drum 4 and the top cover 301, by screw rod 2 forward transport, through the continuous separation misce bene back of mixing stick 807 in the material roll transport, melt into thick plastics by the heating of heating zone 13, and then jet out by screw rod 2's thrust extrusion.

When the material in the mixing cylinder 4 is cleaned or the screw 2 is replaced after the injection molding is finished, the movable support block 303 can be pushed by the hydraulic cylinder 307 to move in the chute 304, the mixing cylinder 4 and the screw 2 in the mixing cylinder are driven to move together by the forward movement of the movable support block 303, the slot 310 at the rear end of the screw 2 is separated from the insert block 309 at the front end of the driven gear 10, then the connecting bolt 302 is unscrewed, the limit between the connecting block 306 and the movable support block 303 is removed, the top cylinder cover 301 is lifted, and the residual material can be quickly cleaned or the screw 2 can be taken out for maintenance.

Claims

1. Twin-screw machine of convenient clearance, including base (1) and mixing drum (4), its characterized in that: a placing table (7) is fixedly connected to the rear part of the base (1), a separating mechanism (3) is arranged beside the mixing cylinder (4), a mixing mechanism (8) is arranged at the rear part of the mixing cylinder (4), and a rotating cavity (11) is arranged in the middle of the inner part of the placing table (7);

separating mechanism (3) are including top cover (301) and pneumatic cylinder (307), top cover (301) are connected through hinge (308) with mixing drum (4), the inside both sides of mixing drum (4) all are provided with screw rod (2), the equal fixedly connected with slot (310) in rear end middle part of screw rod (2), the equal block in slot (310) is connected with inserted block (309), inserted block (309) all set up the front end middle part at driven gear (10), mixing drum (4) fixed connection removes tray (303), top cover (301) fixedly connected with connecting block (306), connecting block (306) are connected through connecting bolt (302) with removal tray (303).

2. The twin screw machine of claim 1, which facilitates cleaning, characterized in that: the mixing mechanism (8) comprises a feeding barrel (802), a second motor (806) is arranged at the top end of the feeding barrel (802), a rotating rod (803) is fixedly connected to the output end of the second motor (806), a plurality of stirring rods (804) are fixed on the rotating rod (803), spiral blades (805) are arranged on the lower portion of a rod body of the rotating rod (803), and a plurality of dry mixing rods (807) are arranged on the upper portions of two side walls in the mixing barrel (4).

3. The twin screw machine of claim 1, which facilitates cleaning, characterized in that: the bottom end of the movable supporting block (303) is connected to the inside of the sliding groove (304) in a sliding mode, and the sliding groove (304) is formed in the middle of the top end of the base (1).

4. A twin-screw machine facilitating cleaning according to claim 1, characterised in that: the internal two sides of the rotating cavity (11) are rotatably connected with driven gears (10), driving gears (12) are arranged between the driven gears (10), and the two sides of the driving gears (12) are meshed with one side of each driven gear (10).

5. The twin screw machine of claim 4, which facilitates cleaning, characterized in that: the rear end of the driving gear (12) is fixedly connected with a first motor (14), and the front end of the first motor (14) is fixedly connected with the middle part of the rear end of the placing table (7).

6. A twin-screw machine facilitating cleaning according to claim 1, characterised in that: the movable supporting block (303) is connected with a hydraulic cylinder (307).

7. The twin screw machine of claim 1, which facilitates cleaning, characterized in that: the front part of the bottom end of the mixing drum (4) is provided with a plurality of heating belts (13) which are uniformly distributed.

8. The twin screw machine of claim 1, which facilitates cleaning, characterized in that: and a feeding port (5) is arranged in the middle of the rear part of the bottom end of the mixing cylinder (4).