CN219325508U

CN219325508U - Feeding device of double-screw extruder

Info

Publication number: CN219325508U
Application number: CN202320291050.4U
Authority: CN
Inventors: 吕树香; 吕健
Original assignee: Qingdao Zhongxinyuan Plastic Products Co ltd
Current assignee: Qingdao Zhongxinyuan Plastic Products Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-11
Anticipated expiration: 2033-02-23

Abstract

The utility model provides a feeding device of a double-screw extruder, which comprises an extrusion box, wherein a feeding pipe is penetrated and arranged at the position, close to the left side, of the top of the extrusion box, a hopper is fixedly connected to the top end of the feeding pipe, a shell is fixedly connected to the center of the left side of the extrusion box, a motor is fixedly connected to the left side of an inner cavity of the shell, the right end of a power output shaft of the motor is fixedly connected with a worm, the right end of the worm penetrates and is fixedly connected with the center of the left side of the extrusion box, a screw rod is fixedly connected to the right end of the worm, a discharge hole is penetrated and arranged at the center of the right side of the extrusion box, a transverse plate is fixedly connected to the position, close to the right side, of the bottom of the transverse plate, and the bottom end of the transverse plate is fixedly connected with the position, close to the right side, of the top of the shell. The feeding device of the double-screw extruder provided by the utility model has the advantage of preventing the raw materials from caking to cause blockage.

Description

Feeding device of double-screw extruder

Technical Field

The utility model relates to the field of double-screw extruders, in particular to a feeding device of a double-screw extruder.

Background

The double screw extruder is developed on the basis of a single screw extruder, and has the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like, so that the double screw extruder is widely applied to the molding processing of extruded products, and is widely applied to the blending modification of filling, reinforcing, toughening and the like of polymer materials such as general plastics, engineering plastics, thermoplastic rubber and the like, and the processing fields of special fibers, special adhesives and the like.

When raw materials are added into a feeding pipe, the raw materials are easy to agglomerate and are blocked, so that the feeding is interrupted, and the problems that the feeding of the extruder is inconvenient and the feeding chamber cannot be prevented from being blocked exist.

Accordingly, there is a need to provide a feeding device for a twin screw extruder that solves the above-mentioned problems.

Disclosure of Invention

The utility model provides a feeding device of a double-screw extruder, which solves the problem that raw materials are easy to agglomerate and cause blockage.

In order to solve the technical problems, the feeding device of the double-screw extruder comprises an extrusion box, wherein a feeding pipe is penetrated and arranged at the position, close to the left, of the top of the extrusion box, a hopper is fixedly connected to the top end of the feeding pipe, a shell is fixedly connected to the center of the left side of the extrusion box, a motor is fixedly connected to the left side of an inner cavity of the shell, a worm is fixedly connected to the right end of a power output shaft of the motor, the right end of the worm penetrates and is fixedly connected with the center of the left side of the extrusion box, a discharge hole is penetrated and arranged at the center of the right side of the extrusion box, a diaphragm is fixedly connected to the position, close to the center, of the left side of the hopper, a partition plate is fixedly connected to the position, close to the right side, of the bottom end of the partition plate and the top of the shell, a transmission rod is inserted and connected to the bottom of the transmission rod penetrates and is inserted and connected to the center of the bottom of the inner cavity of the shell.

Preferably, the left side of hopper is close to bottom department and runs through and be equipped with the bull stick, the outside edge of bull stick is close to right side department fixedly connected with a plurality of stirring boards, the right side that the left end of bull stick runs through the baffle is close to top department to fixedly connected with second bevel gear.

Preferably, a first bevel gear is sleeved on the outer side edge of the transmission rod near the top, and the first bevel gear and the second bevel gear are mutually meshed.

Preferably, a worm wheel is sleeved at the position, close to the bottom end, of the outer side edge of the transmission rod, and the worm wheel and the worm are meshed with each other.

Preferably, a plurality of eccentric wheels are sleeved on the outer side edge of the transmission rod close to the center, and annular sliding grooves are formed in the outer side edges of the eccentric wheels.

Preferably, the right side of the inner cavity of the annular chute is slidably connected with a sliding rod, and the right ends of the sliding rods penetrate through the left side of the partition plate and are fixedly connected with hammerheads.

Compared with the related art, the feeding device of the double-screw extruder provided by the utility model has the following beneficial effects:

the utility model provides a feeding device of a double-screw extruder, which is characterized in that a worm wheel drives a transmission rod to rotate, the transmission rod rotates to drive a first conical gear to rotate, the first conical gear rotates to drive a rotating rod to rotate through a second conical gear, the rotating rod rotates to drive a plurality of stirring plates to rotate, raw materials caked in a hopper are stirred and crushed, and meanwhile, a plurality of sliding rods move left and right to drive a plurality of hammerheads to move left and right to strike a feeding pipe, so that raw materials in the feeding pipe are prevented from being blocked, and the blocking of the raw materials caused by caked raw materials is prevented.

Drawings

FIG. 1 is a schematic view of a feeding apparatus of a twin screw extruder according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of the portion B of FIG. 1;

fig. 4 is an enlarged view at C shown in fig. 1.

Reference numerals in the drawings: 1. the device comprises an extrusion box, 2, a feeding pipe, 3, a hopper, 4, a shell, 5, a motor, 6, a worm, 7, a screw rod, 8, a discharge hole, 9, a cross plate, 10, a baffle plate, 11, a transmission rod, 12, a worm wheel, 13, a first conical gear, 14, a second conical gear, 15, a rotating rod, 16, a stirring plate, 17, an eccentric wheel, 18, an annular chute, 19, a sliding rod, 20 and a hammer head.

Description of the embodiments

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, and fig. 4, fig. 1 is a schematic structural diagram of the present embodiment; FIG. 2 is an enlarged view of FIG. 1 at A; FIG. 3 is an enlarged view at B in FIG. 1; fig. 4 is an enlarged view at C in fig. 1. The feeding device of the double-screw extruder comprises an extrusion box 1, wherein a feeding pipe 2 is penetrated and arranged at the position, close to the left side, of the top of the extrusion box 1, a hopper 3 is fixedly connected to the top of the feeding pipe 2, a shell 4 is fixedly connected to the center, close to the left side, of the extrusion box 1, a motor 5 is fixedly connected to the left side of an inner cavity of the shell 4, a worm 6 is fixedly connected to the right end of a power output shaft of the motor 5, the right end of the worm 6 penetrates and is fixedly connected with the center, close to the screw 7, of the extrusion box 1, a discharge hole 8 is penetrated and arranged at the center, close to the center, of the left side of the hopper 3, a diaphragm 9 is fixedly connected to a partition plate 10, the bottom of the partition plate 10 is fixedly connected with the top, close to the right side, of the bottom of the diaphragm 9 is inserted and connected with a transmission rod 11, the bottom of the transmission rod 11 penetrates through the top of the shell 4 and is inserted and connected to the bottom of the inner cavity of the shell 4, close to the center.

The left side of hopper 3 is close to the bottom department and runs through and be equipped with bull stick 15, and the outside edge of bull stick 15 is close to right side department fixedly connected with a plurality of stirring boards 16, and the right side that the left end of bull stick 15 runs through baffle 10 is close to the top department to fixedly connected with second bevel gear 14.

The outside edge of the transmission rod 11 near the top is sleeved with a first bevel gear 13, and the first bevel gear 13 and a second bevel gear 14 are mutually meshed.

The outside edge of the transmission rod 11 near the bottom end is sleeved with a worm wheel 12, and the worm wheel 12 and the worm 6 are meshed with each other.

The outer side edge of the transmission rod 11 is sleeved with a plurality of eccentric wheels 17 close to the center, and the outer side edges of the eccentric wheels 17 are provided with annular sliding grooves 18.

The right sides of the inner cavities of the annular sliding grooves 18 are respectively and slidably connected with a sliding rod 19, and the right ends of the sliding rods 19 respectively penetrate through the left sides of the partition boards 10 and are respectively and fixedly connected with a hammer head 20.

The utility model provides a feeding device of a double-screw extruder, which has the following working principle:

according to the utility model, firstly, raw materials are put into a hopper 3, then a motor 5 is started, the motor 5 drives a worm 6 to rotate, the worm 6 rotates to drive a transmission rod 11 to rotate through a worm wheel 12, the transmission rod 11 rotates to drive a first bevel gear 13 to rotate, the first bevel gear 13 rotates to drive a rotating rod 15 to rotate through a second bevel gear 14, the rotating rod 15 rotates to drive a plurality of stirring plates 16 to stir and crush the caked raw materials in the hopper 3, then the raw materials in the hopper 3 enter an extrusion box 1 through a feeding pipe 2, the transmission rod 11 rotates and simultaneously drives a plurality of eccentric wheels 17 to rotate, the plurality of eccentric wheels 17 rotate to cooperate with an annular chute 18 to drive a plurality of sliding rods 19 to move left and right, the plurality of sliding rods 19 move left and right to drive a plurality of hammer heads 20 to knock the feeding pipe 2, raw materials in the feeding pipe 2 are prevented from being blocked, the worm 6 rotates to drive a screw 7 to extrude and feed the raw materials falling into the extrusion box 1, and the situation that the blocking is caused by the raw materials is prevented.

according to the utility model, the worm wheel 12 drives the transmission rod 11 to rotate, the transmission rod 11 rotates to drive the first bevel gear 13 to rotate, the first bevel gear 13 rotates to drive the rotating rod 15 to rotate through the second bevel gear 14, the rotating rod 15 rotates to drive the plurality of stirring plates 16 to stir and crush the raw materials caked in the hopper 3, and meanwhile, the plurality of sliding rods 19 move left and right to drive the plurality of hammers 20 to move left and right to strike the feeding pipe 2, so that the raw materials in the feeding pipe 2 are prevented from being blocked, and the blocking condition caused by the raw material caked is prevented.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. Feeding device of twin-screw extruder, including extrusion case (1), its characterized in that: the top of extruding case (1) is close to left side department and runs through and be equipped with inlet pipe (2), the top fixedly connected with hopper (3) of inlet pipe (2), the left side center department fixedly connected with casing (4) of extruding case (1), the inner chamber left side fixedly connected with motor (5) of casing (4), the power output shaft right-hand member fixedly connected with worm (6) of motor (5), the right-hand member of worm (6) runs through the left side center department of extruding case (1) to fixedly connected with screw rod (7), the right side center department of extruding case (1) runs through and is equipped with discharge gate (8), the left side of hopper (3) is close to center department fixedly connected with diaphragm (9), the bottom of diaphragm (9) is close to right side department fixedly connected with baffle (10), the bottom of baffle (10) is close to right side department fixedly connected with casing (4), the bottom of diaphragm (9) is close to left side department and is pegged graft and is had transfer line (11), the bottom of transfer line (11) runs through the top of casing (4) and is close to the bottom of casing (4).

2. Feeding device of a twin-screw extruder according to claim 1, characterized in that a rotating rod (15) is penetrated and arranged at the left side of the hopper (3) near the bottom, a plurality of stirring plates (16) are fixedly connected at the outer side edge of the rotating rod (15) near the right side, and a second bevel gear (14) is fixedly connected at the left end of the rotating rod (15) penetrating through the right side of the partition plate (10) near the top.

3. Feeding device of a twin-screw extruder according to claim 2, characterized in that the outer edge of the transmission rod (11) is provided with a first conical gear (13) close to the top, and the first conical gear (13) and the second conical gear (14) are arranged in a mutually meshed manner.

4. Feeding device of a twin-screw extruder according to claim 1, characterized in that the outer side edge of the transmission rod (11) is provided with a worm wheel (12) close to the bottom end, and the worm wheel (12) and the worm (6) are arranged in a mutually meshed manner.

5. Feeding device of a twin-screw extruder according to claim 1, characterized in that the outer edges of the transmission rod (11) are provided with a plurality of eccentric wheels (17) close to the center, and the outer edges of the eccentric wheels (17) are provided with annular sliding grooves (18).

6. Feeding device of a twin-screw extruder according to claim 5, characterized in that the right sides of the inner cavities of the annular sliding grooves (18) are all slidingly connected with sliding rods (19), and the right ends of the sliding rods (19) all penetrate through the left side of the partition plate (10) and are all fixedly connected with hammerheads (20).