CN219446050U

CN219446050U - Feeding device of double-screw extruder

Info

Publication number: CN219446050U
Application number: CN202320203691.XU
Authority: CN
Inventors: 王国红; 张志田
Original assignee: Shandong Dongfang Hongye New Material Technology Co ltd
Current assignee: Shandong Dongfang Hongye New Material Technology Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-08-01
Anticipated expiration: 2033-02-14

Abstract

The utility model discloses a feeding device of a double-screw extruder, which comprises a double-screw extruder, wherein the double-screw extruder comprises a support, an extrusion charging barrel is transversely arranged at the top of the support, a driving motor is arranged at one end of the extrusion charging barrel, a feeding funnel is arranged at the top of one end of the extrusion charging barrel, which is close to the driving motor, the feeding funnel is communicated with the inside of the extrusion charging barrel, a mounting plate is transversely arranged at one side of the outer peripheral surface of the top of the feeding funnel, a fan is arranged at the top of the mounting plate, a feeding assembly for conveying plastic particle raw materials to the feeding funnel is arranged at one side, which is close to the feeding funnel, a sliding block is arranged on the inner wall of the feeding funnel in a sliding mode, an automatic limiting assembly for controlling the height position of plastic particles in the feeding funnel is arranged at the bottom of the sliding block, and an adjusting assembly for controlling the movement of the sliding block is arranged at the top of the sliding block. According to the automatic limit device, the automatic limit assembly is arranged, and the accurate control of the tact switch is utilized, so that the automation of feeding is realized.

Description

Feeding device of double-screw extruder

Technical Field

The utility model relates to the technical 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, has been widely applied to the molding processing of extruded products due to the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like, and consists of a transmission device, a feeding device, a charging barrel, a screw and the like, and the functions of all the components are similar to those of the single-screw extruder.

The existing double-screw extruder generally adopts a manual feeding mode when feeding, the mode is simple, but the requirement on the operation intensity of operators is higher, and the residual quantity of real-time plastic particles in the feeding hopper is required to be observed in real time so as to prevent the screw extruder from idling, so that the design of the feeding device which is convenient for feeding and can automatically control the feeding time is particularly important, and the feeding device of the double-screw extruder is provided.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a feeding device of a double-screw extruder.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a feeding device of twin-screw extruder, includes the twin-screw extruder, the twin-screw extruder includes a support, the support top transversely is equipped with the extrusion feed cylinder, extrusion feed cylinder one end is equipped with driving motor, extrusion feed cylinder is close to driving motor one end top and is equipped with feed hopper, feed hopper is linked together with extrusion feed cylinder is inside, feed hopper top outer peripheral face one side transversely is equipped with the mounting panel, the mounting panel top is equipped with the fan, fan is close to feed hopper one side and is equipped with the feeding assembly who is used for carrying plastic granules raw materials to feed hopper, feed hopper inner wall slip is equipped with the slider, the slider bottom is equipped with the automatic spacing subassembly that is used for controlling the inside plastic granules high position of feed hopper, the slider top is equipped with the adjusting part that is used for controlling the slider motion.

Preferably, the feeding component comprises a discharging pipe which is arranged on one side, close to the feeding hopper, of the fan, the discharging pipe is communicated with the inside of the fan, the discharging pipe is connected with a negative pressure pipe, the negative pressure pipe is communicated with the inside of the discharging pipe, and one end, away from the discharging pipe, of the negative pressure pipe is provided with a storage bin.

The technical scheme is as follows: the effect that makes the inside negative pressure of negative pressure material pipe that makes that the negative pressure material pipe is passed through to the air current high speed for the inside plastic pellet of storage silo is inhaled negative pressure material pipe inside under the negative pressure effect, gets into row material pipe inside then, and plastic pellet is discharged into inside the feed hopper under the air current thrust effect, and then realizes the effect of quick material loading.

Preferably, the automatic limiting assembly comprises a tact switch arranged at the bottom of the sliding block, and the automatic limiting assembly further comprises a PLC control board arranged at one side of the mounting plate away from the feeding hopper, and the PLC control board is electrically connected with the tact switch.

The technical scheme is as follows: after the plastic particles are piled up and ascended in the feeding hopper, when the plastic particles are contacted with the tact switch, the tact switch sends an electric signal to the PLC control board, the PLC control board controls the servo motor to stop working after receiving the signal, and then stops feeding operation, after the plastic particles descend, the servo motor can be controlled to work, and the precise control of the tact switch is utilized, so that the feeding automation is realized.

Further, the adjusting component comprises a screw rod vertically connected to the top of the sliding block in a rotating mode, a hand wheel is coaxially arranged at the top of the screw rod, a mounting block is sleeved on the peripheral surface of the screw rod in a sliding mode, a nut is arranged at the top of the mounting block, and the screw rod is in threaded connection with the nut.

The technical scheme is as follows: the screw rod is driven to move up and down under the cooperation of the mounting block and the nut when the hand wheel rotates, and the sliding block is driven to slide up and down along the inner wall of the feeding funnel when the screw rod moves, so that the height of the tact switch is rapidly adjusted.

Still further, the central point of fan one side puts the horizontal servo motor that is equipped with, servo motor output shaft links to each other with the inside impeller of fan is coaxial, servo motor forms electric connection with the PLC control panel.

The technical scheme is as follows: the start and stop of the servo motor are controlled by the PLC control board, so that the accurate control of the feeding time is controlled, and the operation intensity of operators is reduced.

The beneficial effects of the utility model are as follows:

1. through the automatic limiting assembly, after plastic particles are piled up and ascended in the feeding hopper, when the plastic particles are contacted with the tact switch, the tact switch sends an electric signal to the PLC control board, the PLC control board controls the servo motor to stop working after receiving the signal, and then the feeding operation is stopped, and when the plastic particles descend, the servo motor can be controlled to work, and the accurate control of the tact switch is utilized, so that the feeding automation is realized;

2. through the adjusting part who sets up, drive the screw rod up-and-down motion under the cooperation effect of installation piece and nut when utilizing the hand wheel to rotate, drive the slider and slide from top to bottom along feed hopper's inner wall when the screw rod motion, and then carry out quick adjustment to the height of tact switch.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model, given by way of illustration only, together with the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of a feeding device of a twin-screw extruder according to the present utility model;

FIG. 2 is a schematic diagram of a feeding assembly of a feeding device of a twin-screw extruder according to the present utility model;

fig. 3 is an enlarged schematic view of a part of a portion a of fig. 2 of a feeding device of a twin-screw extruder according to the present utility model.

In the figure: 1. a twin screw extruder; 101. a support; 102. extruding a charging barrel; 103. a driving motor; 2. a feed hopper; 3. a mounting plate; 4. a blower; 5. a servo motor; 6. a discharge pipe; 7. a negative pressure material pipe; 8. a storage bin; 9. a PLC control board; 10. a slide block; 11. touching the switch; 12. a screw; 13. a mounting block; 14. a nut; 15. and a hand wheel.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Embodiment 1, refer to fig. 1 through 3, a feeding device of twin-screw extruder, including twin-screw extruder 1, twin-screw extruder 1 includes a support 101, the support 101 top transversely is equipped with extrusion feed cylinder 102, extrusion feed cylinder 102 one end is equipped with driving motor 103, extrusion feed cylinder 102 is close to driving motor 103 one end top and is equipped with feed hopper 2, feed hopper 2 and extrusion feed cylinder 102 inside are linked together, feed hopper 2 top periphery one side transversely is equipped with mounting panel 3, the mounting panel 3 top is equipped with fan 4, fan 4 is close to feed hopper 2 one side and is equipped with the feeding subassembly that is used for carrying plastic granules raw materials to feed hopper 2, feed hopper 2 inner wall slip is equipped with slider 10, slider 10 bottom is equipped with the automatic spacing subassembly that is used for controlling the inside plastic granules high position of feed hopper 2, slider 10 top is equipped with the adjusting part that is used for controlling slider 10 motion.

In this embodiment, feeding assembly is including locating the row material pipe 6 that transversely locates fan 4 and is close to feeding hopper 2 one side, row material pipe 6 is linked together with fan 4 inside, row material pipe 6 is connected with negative pressure material pipe 7, negative pressure material pipe 7 is linked together with row material pipe 6 inside, negative pressure material pipe 7 keeps away from row material pipe 6 one end and is equipped with storage silo 8, automatic spacing subassembly is including the tact switch 11 that locates slider 10 bottom, automatic spacing subassembly is still including locating the PLC control panel 9 of locating mounting panel 3 and keeping away from feeding hopper 2 one side, PLC control panel 9 and tact switch 11 are to electric connection, adjusting component includes vertical rotation connection in the screw 12 at slider 10 top, the coaxial hand wheel 15 that is equipped with in screw 12 top, screw 12 outer peripheral face slip cap is equipped with installation piece 13, installation piece 13 top is equipped with nut 14, screw 12 and nut 14 threaded connection, fan 4 one side central point department transversely is equipped with servo motor 5 output shaft and fan 4 inside impeller coaxial link to each other, servo motor 5 and PLC control panel 9 form electric connection.

The working principle of the embodiment is as follows: during the use with plastic granules throw into storage silo 8 inside, make servo motor 5 work through PLC control panel 9 then, thereby servo motor 5 output axial fan 4 inside impeller output power is inside inhaling fan 4 with outside air, the air current is discharged through row material pipe 6 after getting into fan 4, when the air current high-speed flow through negative pressure material pipe 7 top, can make the inside negative pressure material pipe 7 produce negative pressure, and then make the inside plastic granules of storage silo 8 be inhaled negative pressure material pipe 7 inside under negative pressure effect, get into row material pipe 6 inside afterwards, plastic granules is discharged into feed hopper 2 inside under the air current thrust effect, start driving motor 103 at this moment, the inside extrusion screw rod that provides power to extrusion feed cylinder 102 inside when driving motor 103 operates, thereby the inside plastic granules suction extrusion feed cylinder 102 of feed hopper 2 is inside carries out the melting pressurization until extruding when extrusion screw rod rotates, when the plastic granules pile up in feed hopper 2 inside after, with touch switch 11 contact time, the light touch switch 11 sends the signal, control servo motor 5 stop work after the signal receipt, and then stop material loading operation, when the spacing height of control plastic granules need be controlled, need the hand wheel 15, only need rotate under the action of the control panel 12 under the control panel 12 is carried out under the action of the speed control panel 12 and the high-down, and the control panel is carried out under the control of the speed control panel 12 and the speed is operated under the control of the control panel 12.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a feeding device of twin-screw extruder, includes twin-screw extruder (1), its characterized in that, twin-screw extruder (1) include a support (101), support (101) top transversely is equipped with extrusion feed cylinder (102), extrusion feed cylinder (102) one end is equipped with driving motor (103), extrusion feed cylinder (102) are close to driving motor (103) one end top and are equipped with feed hopper (2), feed hopper (2) are linked together with extrusion feed cylinder (102) inside, feed hopper (2) top outer peripheral face one side transversely is equipped with mounting panel (3), mounting panel (3) top is equipped with fan (4), fan (4) are close to feed hopper (2) one side and are equipped with the feeding subassembly that is used for carrying plastic granules raw materials to feed hopper (2), feed hopper (2) inner wall slip is equipped with slider (10), slider (10) bottom is equipped with the automatic spacing subassembly that is used for controlling the inside plastic granules height position of feed hopper (2), slider (10) top is equipped with the adjusting part that is used for controlling slider (10) motion.

2. The feeding device of the double-screw extruder according to claim 1, wherein the feeding assembly comprises a discharging pipe (6) arranged on one side of the fan (4) close to the feeding hopper (2), the discharging pipe (6) is communicated with the inside of the fan (4), the discharging pipe (6) is connected with a negative pressure pipe (7), the negative pressure pipe (7) is communicated with the inside of the discharging pipe (6), and one end, away from the discharging pipe (6), of the negative pressure pipe (7) is provided with a storage bin (8).

3. The feeding device of the double-screw extruder according to claim 2, wherein the automatic limiting assembly comprises a tact switch (11) arranged at the bottom of the sliding block (10), the automatic limiting assembly further comprises a PLC control board (9) arranged at one side of the mounting plate (3) away from the feeding hopper (2), and the PLC control board (9) is electrically connected with the tact switch (11).

4. A feeding device of a twin-screw extruder according to claim 3, characterized in that the adjusting assembly comprises a screw (12) vertically rotatably connected to the top of the slide block (10), a hand wheel (15) is coaxially arranged at the top of the screw (12), a mounting block (13) is slidably sleeved on the outer peripheral surface of the screw (12), a nut (14) is arranged at the top of the mounting block (13), and the screw (12) is in threaded connection with the nut (14).

5. The feeding device of the double-screw extruder according to claim 4, wherein a servo motor (5) is transversely arranged at the center position of one side of the fan (4), an output shaft of the servo motor (5) is coaxially connected with an impeller inside the fan (4), and the servo motor (5) is electrically connected with a PLC control board (9).