CN216139384U - Extruder convenient for replacing filter screen - Google Patents

Abstract

The utility model provides an extruder convenient for replacing a filter screen, which relates to the technical field of extruders and comprises: the filter screen, the filter screen is the annular, and the filter part of filter screen is located between extruder and the extruder head, is provided with the carriage that is used for supporting the filter screen on the filter screen, installs geneva mechanism on the carriage, installs one-way bearing on the geneva mechanism, and rotating device is installed to extruder one side, and rotating device's output and one-way bearing fixed connection install the support frame on the extruder, install crank rocker mechanism on the support frame. The Geneva gear is driven to rotate through the rotating device so as to drive the filter screen to rotate at equal angles, after the filter screen is replaced by the rotating angle, the rotating device rotates reversely to drive the crank-link mechanism to clean the filter screen, and the Geneva gear is installed on the Geneva gear and cannot drive the Geneva gear to rotate, so that the filter screen can be replaced quickly and cleaned.

Description

Extruder convenient for replacing filter screen

Technical Field

The utility model relates to the technical field of extruders, in particular to an extruder convenient for replacing a filter screen.

Background

The plastic particle extruder is widely applied to the plastic production industry, and in production, the plastic particle extruder heats and extrudes master batch to be plasticized into melt, and the melt is extruded out of a machine head of the plastic particle extruder through a screw. Generally, before a melt extruder head, in order to ensure the purity of extruded materials, the materials need to be filtered by a filter screen, so that the quality of the materials is improved, and the filter screen needs to be replaced after being used for a long time.

The Chinese patent with the publication number of CN210820847U discloses a filtering device of a plastic particle extruder, which comprises a mounting seat arranged on a barrel of the extruder, wherein a movable plate is horizontally inserted and slidably connected in the mounting seat, the mounting seat is provided with a driving component for driving the movable plate to move along the length direction, the movable plate is provided with two filtering plates along the length direction, the filtering plates are provided with filtering screens for filtering impurities, the top of the movable plate is provided with a mounting groove, the filtering plates are inserted and slidably connected in the mounting groove, the top of each filtering plate is provided with a fixed plate, the side surface of each fixed plate is provided with a clamping block, a first elastic piece is connected between each clamping block and the fixed plate, and the side wall of the mounting groove is provided with a clamping groove clamped with the clamping block; the utility model has the effects of quickly disassembling and assembling the filter screen on the movable plate and improving the replacement efficiency of the filter screen.

However, in the above technical solution, the driving device pushes the two filter plates of the filter plate disposed on the movable plate to perform a position change, and when one filter plate is replaced, the two filter plates are replaced. And the other filter screen works, and in the replacement process, the replacement process of the filter screen is not continuous and does not have the function of automatic cleaning.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an extruder convenient for replacing a filter screen, and aims to solve the problem that the extruder convenient for replacing the filter screen in the prior art does not have a self-cleaning function.

In order to achieve the purpose, the utility model adopts the following technical scheme: an extruder for facilitating replacement of a screen, comprising: the filter screen, the filter screen is the annular, the filtering part of filter screen is located between extruder and the extruder head, be provided with the carriage that is used for supporting the filter screen on the filter screen, install geneva mechanism on the carriage, install one-way bearing on the geneva mechanism, rotating device is installed to extruder one side, rotating device's output and one-way bearing fixed connection, install the support frame on the extruder, install crank rocker mechanism on the support frame, the drive mechanism who is used for driving the motion of crank rocker mechanism is installed to rotating device's output.

In order to enable the grooved wheel mechanism to have the function of driving the filter screen to rotate in an equal angle, the grooved wheel mechanism comprises a grooved wheel fixedly arranged at the center of a supporting frame, a turntable is arranged on one side of the grooved wheel, a locking disc for locking the grooved wheel is arranged on the turntable, a poking pin for driving the grooved wheel to rotate is arranged on the turntable, and the one-way bearing and the turntable are concentrically and fixedly arranged.

In order to enable the utility model to have the effect on the filter screen, the utility model has the further technical scheme that the crank-rocker mechanism comprises a rocker which is rotatably arranged on the support frame, the rocker is rotatably arranged at the circle center of the grooved wheel, a crank is rotatably arranged at the end part of the support frame, a connecting rod is rotatably arranged between the crank and the rocker, and a rolling brush for cleaning the filter screen is detachably arranged on the rocker.

In order to prevent the rocker from colliding with the rotating shaft of the rotating motor, the further technical scheme of the utility model is that the rocker is provided with an anti-collision arc.

In order to ensure that the utility model has the function of a certain rotating angle of the rotating disc, the utility model has the further technical scheme that the rotating device is a servo motor.

In order to enable the crank connecting rod mechanism to have the function of driving the crank connecting rod mechanism to rotate, the further technical scheme of the crank connecting rod mechanism is that the transmission mechanism comprises a driving belt wheel fixedly arranged at the output end of the rotating device, a driven belt wheel is fixedly arranged on the crank, and a conveying belt is arranged between the driving belt wheel and the driven belt wheel.

In order to ensure that the utility model has the function of collecting and cleaning waste materials, the utility model has the further technical scheme that a collecting box is arranged below the rocker.

In order to ensure that the utility model has the function of conveniently moving the cleaning box, the utility model has the further technical scheme that universal wheels are arranged above and below the collecting box, and a handle is fixedly arranged on one side of the collecting box.

The utility model has the beneficial effects that:

through setting up the annular form filter screen, the phenomenon of filtering the fault can not appear in the rotation in-process, and rotating device drives geneva mechanism and rotates and then drive the filter screen and wait angular rotation, and after the filter screen was changed to turned angle, rotating device counter-rotation drove crank link mechanism and clears up the filter screen, because install one-way bearing on the geneva mechanism and can not drive geneva mechanism and rotate, can carry out quick replacement and clear up the filter screen after changing to the filter screen.

Drawings

FIG. 1 is a schematic three-dimensional structure of an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 3 is a front view of an embodiment of the present invention.

Fig. 4 is a schematic structural view of a sheave mechanism according to an embodiment of the present invention.

In the figure: 1. a filter screen; 2. a support frame; 3. a sheave mechanism; 31. a grooved wheel; 32. a turntable; 33. a locking plate; 34. a toggle pin; 4. a one-way bearing; 5. a rotating device; 6. a support frame; 7. a crank and rocker mechanism; 71. a rocker; 72. a crank; 73. a connecting rod; 8. a transmission mechanism; 81. a driving pulley; 82. a driven pulley; 83. a conveyor belt; 9. a collection box; 10. a universal wheel; 11 a handle.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 4, an extruder for facilitating replacement of a screen, comprising: the utility model discloses a filter screen, including filter screen 1, the filter screen 1 is the annular, the filtering part of filter screen 1 is located between extruder and the extruder head, be provided with the carriage 2 that is used for supporting filter screen 1 on the filter screen 1, install geneva mechanism 3 on the carriage 2, install one-way bearing 4 on the geneva mechanism 3, rotating device 5 is installed to extruder one side, rotating device 5's output and one-way bearing 4 fixed connection, install support frame 6 on the extruder, install the crank rocker mechanism 7 that is used for clearing up filter screen 1 on the support frame 6, the drive mechanism 8 that is used for driving the motion of crank rocker mechanism 7 is installed to rotating device 5's output.

In this embodiment, when filter screen 1 needs to be changed back, drive geneva mechanism 3 through rotating device 5 and rotate, drive filter screen 1 through geneva mechanism 3 and wait the angle and rotate, after filter screen 1 rotates certain angle, accomplish the change of filter screen 1, after filter screen 1 changes the completion, rotating device 5 antiport, through rotating device 5 antiport, when rotating device 5 antiport, because be provided with one-way bearing 4 on geneva mechanism 3, geneva mechanism 3 does not rotate in rotating device 5 antiport, rotating device 5 takes drive mechanism 8 to rotate and drives crank rocker mechanism 7 through drive mechanism 8 and rotate, clear up filter screen 1 through crank rocker mechanism 7.

Specifically, the geneva mechanism 3 includes a geneva wheel 31 fixedly arranged at the center of the support frame 2, a rotary table 32 is arranged at one side of the geneva wheel 31, a locking disc 33 for locking the geneva wheel 31 is arranged on the rotary table 32, a toggle pin 34 for driving the geneva wheel 31 to rotate is arranged on the rotary table 32, and the one-way bearing 4 and the rotary table 32 are concentrically and fixedly arranged. The rotating device 5 drives the rotating disc 32 to rotate, the rotating disc 32 rotates and drives the grooved wheel 31 to rotate through the toggle pin 34 arranged on the rotating disc, the grooved wheel 31 drives the filter screen 1 to rotate, and after the filter screen 1 rotates, the grooved wheel 31 is locked by the locking disc 33.

Specifically, the crank-rocker mechanism 7 comprises a rocker 71 rotatably arranged on the support frame 6, the rocker 71 is rotatably arranged at the center of the grooved pulley 31, a crank 72 is rotatably arranged at the end of the support frame 6, a connecting rod 73 is rotatably arranged between the crank 72 and the rocker 71, and a rolling brush 74 for cleaning the filter screen 1 is detachably arranged on the rocker 71. The crank 72 is driven by the transmission mechanism 8 to rotate, the connecting rod 73 is driven to rotate through the rotation of the crank 72, the rocker 71 is driven to rotate through the rotation of the connecting rod 73, and the filter screen 1 is cleaned through the rolling brush 74 arranged on the rocker 71.

Preferably, the rocker 71 is provided with a bump guard. The rocker 71 is prevented from colliding with the turning device 5 at the time of turning by the provision of the crashproof arc.

The rotating device 5 is a servo motor. Through setting up servo motor, servo motor drives geneva mechanism 3 and rotates the fixed angle of rotation of drive geneva mechanism 3 at every turn when rotating.

Specifically, the transmission mechanism 8 includes a driving pulley 81 fixedly disposed at an output end of the rotating device 5, the crank 72 is fixedly disposed with a driven pulley 82, and a transmission belt 83 is disposed between the driving pulley 81 and the driven pulley 82. The rotating device 5 drives the driving pulley 81 to rotate, the driving pulley 81 rotates to drive the transmission belt 83 to rotate so as to drive the driven pulley 82 to rotate, and the driven pulley 82 rotates to drive the crank 72 to rotate.

Preferably, a collection box 9 is mounted below the rocker 71. A collection box 9 is provided below the rocker 71 to collect the cleaned waste material.

Preferably, universal wheels 10 are installed above and below the collection box 9, and a handle 11 is fixedly arranged on one side of the collection box 9. The universal wheels 10 and the handle 11 are arranged below the collecting box 9, so that the collecting box 9 can be conveniently moved.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. An extruder for facilitating replacement of a filter screen, comprising: filter screen (1), filter screen (1) is the annular, the filter part of filter screen (1) is located between extruder and the extruder head, be provided with carriage (2) that are used for supporting filter screen (1) on filter screen (1), install sheave mechanism (3) on carriage (2), install one-way bearing (4) on sheave mechanism (3), rotating device (5) are installed to extruder one side, the output and the one-way bearing (4) fixed connection of rotating device (5), install support frame (6) on the extruder, install crank rocker mechanism (7) that are used for clearing up filter screen (1) on support frame (6), drive mechanism (8) that are used for driving crank rocker mechanism (7) motion are installed to the output of rotating device (5).

2. The extruder for facilitating the replacement of the filter screen as claimed in claim 1, wherein the geneva mechanism (3) comprises a geneva wheel (31) fixedly arranged at the center of the support frame (2), a rotary table (32) is arranged at one side of the geneva wheel (31), a locking disc (33) for locking the geneva wheel (31) is arranged on the rotary table (32), a toggle pin (34) for driving the geneva wheel (31) to rotate is arranged on the rotary table (32), and the one-way bearing (4) and the rotary table (32) are concentrically and fixedly arranged.

3. The extruder for facilitating filter screen replacement according to claim 1, wherein the crank and rocker mechanism (7) comprises a rocker (71) rotatably arranged on the support frame (6), the rocker (71) is rotatably arranged at the center of the grooved wheel (31), a crank (72) is rotatably arranged at the end of the support frame (6), a connecting rod (73) is rotatably arranged between the crank (72) and the rocker (71), and a rolling brush (74) for cleaning the filter screen (1) is detachably arranged on the rocker (71).

4. Extruder for facilitating the replacement of screens according to claim 3, wherein the rocker (71) is provided with an anti-collision arc.

5. Extruder for facilitating the replacement of screens according to claim 1, wherein the rotating means (5) are servomotors.

6. The extruder for facilitating the replacement of a filter screen as claimed in claim 3, wherein the transmission mechanism (8) comprises a driving pulley (81) fixedly arranged at the output end of the rotating device (5), a driven pulley (82) is fixedly arranged on the crank (72), and a transmission belt (83) is arranged between the driving pulley (81) and the driven pulley (82).

7. Extruder for facilitating the replacement of screens, according to claim 1, wherein a collection box (9) is mounted below the rocker (71).

8. The extruder for facilitating the replacement of the filter screen as claimed in claim 7, wherein universal wheels (10) are installed above and below the collection box (9), and a handle (11) is fixedly arranged on one side of the collection box (9).

Images