CN217169659U

CN217169659U - Device for cleaning screw of extruder

Info

Publication number: CN217169659U
Application number: CN202220556424.6U
Authority: CN
Inventors: 左绍文; 吕卡利; 周红敏; 吕中伟
Original assignee: Shandong Hechuang Hongxin Material Technology Co ltd
Current assignee: Shandong Hechuang Hongxin Material Technology Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-08-12
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses a wash device of extruder screw rod, include the operation panel that can level, adjust from top to bottom, the operation panel includes conveyor operation panel, muffle furnace operation panel, ash removal cleaning operation panel and draw gear operation panel in proper order according to placing the order, be connected with the removal guide pulley on conveyor operation panel and the draw gear operation panel, be connected with the muffle furnace body on the muffle furnace operation panel, the muffle furnace body left and right sides symmetry is equipped with square door opening between two parties, be connected with the ash removal box on the ash removal cleaning operation panel, the relative trompil of ash removal box left and right sides, ash removal box internal connection has wire roller and air knife, still be connected with on the ash removal cleaning operation panel with ash removal box complex collection dirt sack and fan. Compared with the prior art, the utility model the advantage lie in: the cleaning agent is simple to operate, safe and environment-friendly, can automatically remove residual resin or carbide on the screw, has a good cleaning effect, and cannot cause any damage to the screw.

Description

Device for cleaning screw of extruder

Technical Field

The utility model relates to an extruder screw rod washs technical field, specifically indicates a wash device of extruder screw rod.

Background

The extruder is the most common equipment for plastic processing, and the extruder screw is one of the most key core functional components of the extruder, and is directly related to the inherent performance and appearance effect of materials or products. A single screw extruder or twin-screw extruder for modified plastics production, when different product production switching periods or long-time production operation or shut down, all need clean the clearance to the screw rod, avoid the pollution between the different materials, avoid screw rod carbonization phenomenon in process of production, finally ensure the quality of product.

The following methods are currently used in the industry for cleaning screws:

the most commonly used method, barbecue method, is to pull out the screw and put it on the fixed support, burn or fire with carbon or liquefied gas to remove the plastics on the screw, the temperature of carbon fire is generally 700-.

A cleaning method for cleaning the mother material of screw bolt is a simple physical cleaning method, which is characterized by that under the condition of normal production, the mother material is directly fed into the extruder, and the residual material or carbonized material on the screw bolt and screw bolt is sheared, rubbed, mixed and extruded by the rigid particles (resin or mineral) in the mother material in the screw bolt to implement dynamic cleaning.

A screw chemical cleaning method features that the cleaning material contains special active components, which are activated at a certain temp and the deposited carbon and residual material are immersed for decomposing, dissolving, loosening and stripping.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a device of washing extruder screw rod of easy operation, safety, environmental protection, operating personnel settles the leveling with the screw rod, starts the operation, can the automatic clear screw rod on remaining resin or carbide, clean effectual, and can not cause any injury to the screw rod.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a wash device of extruder screw rod, includes the operation panel that can level, adjust from top to bottom, the operation panel includes conveyor operation panel, muffle furnace operation panel, ash removal cleaning operation panel and draw gear operation panel in proper order according to placing the order, be connected with the removal guide pulley on conveyor operation panel and the draw gear operation panel, be connected with the muffle furnace body on the muffle furnace operation panel, the muffle furnace body left and right sides symmetry is equipped with square door opening between two parties, be connected with the ash removal box on the ash removal cleaning operation panel, the relative trompil of ash removal box left and right sides, ash removal box internal connection has wire roller and air knife, still be connected with on the ash removal cleaning operation panel and collect dirt sack and fan with ash removal box complex.

Furthermore, the movable guide wheels are dumbbell-shaped and are processed by 304 stainless steel and arranged in a linear manner, and two ends of the movable guide wheels are fixed on the conveying device operating platform and the traction device operating platform through bearings.

Furthermore, two square door openings are oppositely arranged at the center positions of the left side and the right side of the muffle furnace body, the size of each square door opening is 200mmx 200mm, the square door openings are suitable for being used for cleaning screws with the diameter of below 185mm, and the square door openings are connected with sliding doors; when the sliding door is normal, the sliding door is inserted and closed at the side, and can be used as a conventional muffle furnace; when the screw rod is cleaned, the sliding door is opened, and the screw rod can horizontally penetrate through the sliding door.

Furthermore, the ash removal box body is preferably made of 304 stainless steel, the thickness is preferably 2-3mm, the left side and the right side of the ash removal box body are oppositely provided with holes, the diameter is preferably 200mm, and the screw can move through the holes; the front and the back of the metal wire roller can be opened and closed so as to adjust the working positions of the metal wire roller and the air knife, the metal wire roller adopts a copper wire roller with the length of 50mm, the roller body is preferably 100mmx200mm (the length of the diameter x), two sides of the roller body are tightly attached to the screw rod along the axial direction and are arranged horizontally relatively, and the metal wire roller is driven by a variable frequency motor and rotates in the same direction, preferably at the rotating speed of 300-500 rpm. The metal wire roller can clean ash on the surface of the screw rod, and simultaneously, the screw rod can slightly rotate at a low speed in a different direction under the action of the same-direction rotation, so that the purpose of cleaning the surface of the whole screw rod is achieved.

Furthermore, the operating platform of the traction device is connected with a variable frequency motor, a traction steel wire rope, a steel wire winding roller and a connecting piece, the variable frequency motor drives the steel wire winding roller to be connected, the traction steel wire rope is wound on the steel wire winding roller, one section of the connecting piece is connected with the traction steel wire rope through a metal ring, the other end of the connecting piece is provided with a screw thread for connecting a screw, and the traction speed is set according to the performance of the screw bonding resin and the carbonization condition, preferably 5-50 mm/min.

Compared with the prior art, the utility model the advantage lie in:

the screw cleaning device can thoroughly remove residual resin or carbide on the screw, is simple to operate, safe and environment-friendly, has a good cleaning effect, cannot cause any damage to the screw, and provides high-quality screw equipment for further production.

Drawings

FIG. 1 is a schematic view of a device for cleaning an extruder screw.

FIG. 2 is a side view schematic diagram of the muffle body.

FIG. 3 is a schematic view of a moving idler.

FIG. 4 is a schematic structural view of the ash removal cleaning device.

Fig. 5 is a schematic view of the connector structure.

As shown in the figure: 1. the device comprises a conveying device operation table, 2, a muffle furnace operation table, 3, a dust removing and cleaning operation table, 4, a traction device operation table, 5, a movable guide wheel, 6, a muffle furnace body, 7, a square door opening, 8, a dust removing box body, 9, a metal wire roller, 10, an air knife, 11, a dust collecting cloth bag, 12, a fan, 13, a sliding door, 14, a variable frequency motor, 15, a traction steel wire rope, 16, a steel wire winding roller, 17, a traction connecting piece, 18, a metal ring, 19, a screw thread, 20 and a screw rod.

Detailed Description

The following describes the device for cleaning the screw of the extruder in further detail with reference to the accompanying drawings.

With reference to fig. 1-5, the screw head of the twin-screw extruder is removed, the traction connecting piece 17 is replaced, the twin-screw extruder is horizontally placed on the operation table in the left-right direction, all the movable guide wheels 5 are manually adjusted, the screws are moved, so that the screws can smoothly pass through the muffle furnace body 6 and the dust removal cleaning device without obstacles, and the movable guide wheels 5 are fixed after adjustment.

The screw is manually moved to the position where the left end of the traction connecting piece 17 just comes out of the muffle body 6 and is connected with the traction steel wire rope 15.

After all preparation work is done, the cleaning device can be operated.

Setting the temperature of the muffle furnace body 6: the decomposition temperature of the polypropylene is 350-380 ℃, and the temperature of the muffle body 6 is set to be 500 ℃ according to the decomposition temperature. And starting the traction device after the temperature rises and reaches the set temperature and keeping the constant temperature for 30 minutes, and moving at the traction speed of 30 mm/min. After the screw rod comes out of the muffle furnace body 6, whether the residual material on the surface of the screw rod is ashed or not can be visually observed, if the residual material is not ashed, the screw rod needs to be returned into the furnace, the set temperature is increased or the traction speed is reduced, but the highest temperature does not exceed 600 ℃ (the safe baking temperature provided by a screw rod manufacturer), and the gas generated by baking is additionally treated.

The ash removal cleaning device was started and the rotation speed of the wire roll 9 was controlled at 300 rpm. The generated ashes are collected by the dust collecting cloth bag 11.

And after the screw rod completely passes through the dedusting and cleaning device, checking the surface treatment effect, if the cleaning requirement is not met, cleaning the screw rod through the device once again, and properly increasing the traction speed and the speed of the metal wire roller 9 until the cleaning requirement is met.

The device can thoroughly clear away remaining resin or carbide on the screw rod, easy operation, safety ring protects, and clean effectual, and can not cause any injury to the screw rod, provides high-quality screw rod equipment for further production.

The present invention and its embodiments have been described above, but the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a device for rinsing extruder screw rod, includes the operation panel that can level, adjust from top to bottom which characterized in that: the operation panel includes conveyor operation panel, muffle furnace operation panel, ash removal cleaning operation panel and draw gear operation panel in proper order according to placing the order, be connected with the removal guide pulley on conveyor operation panel and the draw gear operation panel, be connected with the muffle furnace body on the muffle furnace operation panel, the symmetry is equipped with square door opening between two parties in the muffle furnace body left and right sides, be connected with the ash removal box on the ash removal cleaning operation panel, the relative trompil in ash removal box left and right sides, ash removal box internal connection has wire roller and air knife, still be connected with on the ash removal cleaning operation panel with ash removal box complex collection dirt sack and fan.

2. The apparatus for cleaning extruder screws of claim 1, wherein: the movable guide wheels are dumbbell-shaped, are processed by 304 stainless steel and are arranged in a linear mode, and two ends of the movable guide wheels are fixed on the conveying device operating platform and the traction device operating platform through bearings.

3. An apparatus for cleaning an extruder screw according to claim 1, wherein: and the square door opening is connected with a sliding door.

4. An apparatus for cleaning an extruder screw according to claim 1, wherein: adjusting windows are reserved in the front and the back of the ash removal box body, the metal wire roller is a copper wire roller with the length of 50mm, two sides of the metal wire roller are tightly attached to the screw rod along the axial direction, and the metal wire roller and the screw rod are arranged horizontally relatively.

5. The apparatus for cleaning extruder screws of claim 1, wherein: the traction device is characterized in that the traction device operating platform is connected with a variable frequency motor, a traction steel wire rope, a steel wire winding roller and a traction connecting piece, the variable frequency motor is driven to be connected with the steel wire winding roller, the traction steel wire rope is wound on the steel wire winding roller, one section of the traction connecting piece is connected with the traction steel wire rope through a metal ring, and the other end of the traction connecting piece is provided with a screw thread for connecting a screw rod.