CN217395642U

CN217395642U - Screw extruder takes out strutting arrangement for screw rod

Info

Publication number: CN217395642U
Application number: CN202220568255.8U
Authority: CN
Inventors: 毛军峰; 吕淑华; 葛英乐
Original assignee: Luoyang Yajie Pipe Industry Co ltd
Current assignee: Luoyang Yajie Pipe Industry Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-09-09
Anticipated expiration: 2032-03-16

Abstract

A supporting device for screw extraction of a screw extruder, which relates to the field of screw extruder equipment, comprises a supporting frame, a belt conveying structure, a slow-rotating motor, a mounting vertical plate, a winding drum and a pulling connecting piece; the top of the supporting frame is provided with a flat supporting top plate, the belt conveying structure is arranged in the center of the upper surface of the flat supporting top plate, and the outer skin surface of the belt ring is coated with a lubricant; two sliding rails are symmetrically arranged on two sides of the upper surface of the flat support top plate, a sliding block is clamped on each sliding rail, two sides of the lower end of an installation vertical plate are fixedly connected with the two sliding blocks respectively, the front end of a casing of a slow-rotating motor is fixed on the rear plate surface of the installation vertical plate, a rotating shaft of the slow-rotating motor is coaxially fixed with a rotating disc, the tail end of a pulling piece is fixedly connected with one end of three stranded ropes, and the other ends of the three stranded ropes are uniformly fixed on the outer edge of the rotating disc; the winding drum is arranged at the rear end of the flat support top plate, and the outer end of the winding rope is fixedly connected with the shell of the slow-turning motor; the supporting device can improve the efficiency of extracting the screw rod and reduce the secondary damage to the screw rod.

Description

Screw extruder takes out strutting arrangement for screw rod

Technical Field

The utility model belongs to the technical field of screw extruder equipment and specifically relates to a screw extruder takes out strutting arrangement for screw rod.

Background

The screw extruder is a common device in pipe processing and manufacturing, an extrusion system of the screw extruder can melt and plasticize a high polymer material to form a uniform melt, so that the transition from a glass state to a viscous flow state is realized, a certain pressure is established in the process, the uniform melt is continuously extruded and conveyed to a machine head die by the screw, and the screw is used as the heart of the extruder and needs to be extracted in time for maintenance and replacement once being worn or deformed;

because the friction force between the screw and the barrel of the extruder is large, the weight of the screw is also heavy, and the screw is difficult to be pulled by manpower, the prior art often arranges a winding drum and a row of supporting rollers on a supporting frame, fixes the outer end of the screw by using a winding rope, and pulls out the screw under the rolling supporting action of the supporting rollers; however, since the screw has the helical blade and is not a complete cylinder, the screw not only has a large friction with the barrel of the extruder in the process of linear pulling, but also is easy to be jammed due to the contact between the helical blade and the supporting roller, the extraction efficiency is affected to be small, and the secondary abrasion to the helical blade is not compensated.

Disclosure of Invention

In order to overcome not enough in the background art, the utility model discloses a screw extruder takes out strutting arrangement for screw rod not only can improve the efficiency of taking out the screw rod, can reduce the secondary damage to the screw rod moreover.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a supporting device for a screw rod of a screw rod extruder for pulling the screw rod comprises a supporting frame, a belt conveying structure, a slow-rotating motor, a mounting vertical plate, a winding drum and a pulling connecting piece for connecting the outer end surface of the screw rod; the top of the support frame is provided with a flat supporting top plate, and the lower part of the support frame is provided with a lifting mechanism capable of adjusting the height of the flat supporting top plate; the belt conveying structure is longitudinally arranged in the center of the upper surface of the flat support top plate along the flat support top plate, the belt conveying structure comprises a belt ring and two end supporting rollers which are in transmission connection through the belt ring, a plurality of middle supporting rollers used for supporting the belt ring are uniformly arranged between the two end supporting rollers, and the outer skin surface of the belt ring is coated with a lubricant; two sliding rails which are arranged along the longitudinal direction of the flat support top plate are symmetrically arranged on two sides of the upper surface of the flat support top plate, each sliding rail is provided with a sliding block which can slide along the sliding rail in a clamping manner, two sides of the lower end of the installation vertical plate are fixedly connected with the two sliding blocks respectively, the center of the surface of the installation vertical plate is provided with a center hole, the front end of the casing of the slow-rotating motor is fixed on the rear surface of the installation vertical plate, the rotating shaft of the slow-rotating motor penetrates through the center hole in a rotating manner and is coaxially fixed with a rotary table, the tail end of the pulling-connecting piece is fixedly connected with one end of three stranded ropes, and the other ends of the three stranded ropes are uniformly fixed on the outer edge of the rotary table; the winding drum is installed at the rear end of the upper surface of the flat support top plate, and the outer end of a winding rope wound on the winding drum is fixedly connected with the rear end of a casing of the slow-turning motor.

Further, be equipped with the flat bottom plate that props under the flat roof that props, both ends between flat bottom plate and the flat roof that props all are equipped with the electric jar that goes up and down, a plurality of truckles of taking the brake are installed to the lower plate of flat bottom plate that props.

Furthermore, a cross type folding expansion bracket is arranged between the middle parts of the flat support bottom plate and the flat support top plate.

Further, the winding drum is a manual winding drum or an electric winding drum.

Further, belt conveying structure still includes and is located the tip and props the roller below and be used for the lower roller set that passes back the belt circle, the tip props the roller and all establishes to V type bearing roller with middle prop the roller.

Further, the installation vertical plate is a door-shaped plate.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a screw extruder takes out strutting arrangement for screw rod, adopt following two kinds of designs to reduce the screw rod wearing and tearing, improve and take out efficiency:

firstly, different from the traditional axial straight pull, the utility model can drive the screw rod to rotate by the slow-rotating motor while pulling the screw rod axially by the winding drum, so that the screw rod can be pulled out from the barrel of the extruder more easily; in addition, the torque is transmitted by arranging the three stranded ropes, so that the centering time of the rotating shaft of the slow-rotating motor and the screw is saved;

secondly, there is one row of backing rolls that has traditional direct contact screw rod, changes into belt transport structure, and helical blade just so can not appear blocking because of contacting single backing roll in the direction of advance, and through set up emollient on the belt circle, has also avoided the wearing and tearing of rotation in-process screw rod.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a schematic top view of the structure of fig. 1.

In the figure: 1. a top plate is horizontally supported; 2. a slider; 3. pulling out the connecting piece; 4. stranding a rope; 5. a turntable; 6. installing a vertical plate; 7. slowly rotating the motor; 8. a belt conveying structure; 9. a slide rail; 10. a winding drum; 11. a lifting electric cylinder; 12. a bottom plate is horizontally supported; 13. a caster wheel; 14. crossing folding expansion bracket.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings in the embodiments of the present invention, it should be understood that, if there are the indicated directions or positional relationships, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and in order to facilitate the description of the present invention, it is not necessary to indicate or imply that the indicated device or element must have a specific direction:

the support device for the screw rod of the screw extruder, which is described in connection with fig. 1-2, comprises a support frame, a belt conveying structure 8, a slow rotation motor 7, a mounting vertical plate 6, a winding drum 10 and a pulling connecting piece 3 for connecting the outer end face of the screw rod, wherein the pulling connecting piece 3 is detachably and fixedly connected with the outer end face of the screw rod, a threaded hole is generally formed in the center of the outer end face of the screw rod, and the pulling connecting piece 3 can be set as a screw which is adaptive to the threaded hole;

the top of the support frame is provided with a flat support top plate 1, the lower part of the support frame is provided with a lifting mechanism capable of adjusting the height of the flat support top plate 1, and the height of the flat support top plate 1 is adjusted through the lifting mechanism, so that a rotating shaft of a slow-rotating motor 7 can appropriately correspond to a screw rod, and certainly, a complete coaxial line is not needed, so that the adjusting time is increased, and the efficiency is reduced; according to the requirements, a flat support bottom plate 12 is arranged right below a flat support top plate 1, lifting electric cylinders 11 are arranged at two ends between the flat support bottom plate 12 and the flat support top plate 1, the lifting electric cylinders 11 are used for controlling the lifting and positioning of the flat support top plate 1, and a plurality of caster wheels 13 with brakes are arranged on the lower plate surface of the flat support bottom plate 12, so that the support frame can be conveniently moved and positioned; in addition, a cross type folding expansion bracket 14 is arranged between the flat support bottom plate 12 and the middle part of the flat support top plate 1, and the cross type folding expansion bracket 14 is arranged to increase the support strength in consideration of the heavier screw rod;

the belt conveying structure 8 is longitudinally arranged in the center of the upper surface of the flat support top plate 1 along the flat support top plate 1, the belt conveying structure 8 comprises a belt ring and two end supporting rollers which are connected through the belt ring in a transmission mode, a plurality of middle supporting rollers used for supporting the belt ring are uniformly arranged between the two end supporting rollers, of course, the two ends of each end supporting roller and the two ends of each middle supporting roller are arranged on the flat support top plate 1 through roller frame plates, the outer belt surface of the belt ring is coated with a lubricant, a row of supporting rollers which are not in direct contact with a traditional screw rod are arranged, the belt conveying structure 8 is used instead, and therefore, a helical blade cannot be blocked in the forward direction due to contact with a single supporting roller, and the lubricant is arranged on the belt ring, so that the abrasion of the screw rod in the rotating process is avoided; according to the requirement, the belt conveying structure 8 further comprises a lower supporting roller group which is positioned below the end supporting roller and used for returning the belt ring, the end supporting roller and the middle supporting roller are both set to be V-shaped supporting rollers, and the V-shaped supporting rollers can perform certain radial limiting on the screw rod to prevent the screw rod from swinging in the drawing process;

two sliding rails 9 which are arranged along the longitudinal direction of the flat-supported top plate 1 are symmetrically arranged on two sides of the upper surface of the flat-supported top plate 1, a sliding block 2 which can slide along the sliding rails 9 is clamped on each sliding rail 9, and two sides of the lower end of an installation vertical plate 6 are fixedly connected with the two sliding blocks 2 respectively, so that the installation vertical plate 6 can move flexibly along the sliding rails 9; according to the requirement, the mounting vertical plate 6 is a door-shaped plate which can avoid the belt conveying structure 8; a center hole is formed in the center of the plate surface of the mounting vertical plate 6, the front end of a shell of the slow-turning motor 7 is fixed to the rear plate surface of the mounting vertical plate 6, a rotating shaft of the slow-turning motor 7 penetrates through the center hole in a rotating mode and is coaxially fixed with a rotary table 5, one ends of three stranded ropes 4 are fixedly connected to the tail end of the pulling-connecting piece 3, and the other ends of the three stranded ropes 4 are uniformly fixed to the outer edge of the rotary table 5; reel 10 is installed in the upper surface rear end of flat-supported roof 1, and winding serving outer end and the casing rear end fixed connection who changes motor 7 slowly on reel 10 are different from traditional axial czochralski, the utility model discloses when through reel 10 axial pulling screw rod, still drive the screw rod through changing motor 7 slowly and rotate to make the screw rod pull out from the barrel of extruder more easily, in addition, through setting up three hank rope transmission torque, in addition the flexibility of hank rope, make the motor shaft that changes slowly and the screw rod need not complete coaxial line, also practiced thrift the centering time of changing motor shaft slowly and screw rod.

Implement screw extruder take out strutting arrangement for screw rod, need before taking out the screw rod, remove the die head of extruder, tear the transmission connecting piece inner of screw rod open, then remove the export of extruder barrel with strutting arrangement, adjust the height of flat supporting roof 1 for the pivot of slow rotating motor 7 can correspond with the screw rod moderate degree, then will pull out even 3 and connect firmly in the outer terminal surface of screw rod, just can start slow rotating motor 7, rolling reel 10 carries out the operation of taking out of screw rod.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.

Claims

1. The utility model provides a screw extruder takes out strutting arrangement for screw rod, characterized by: comprises a support frame, a belt conveying structure (8), a slow-turning motor (7), a mounting vertical plate (6), a winding drum (10) and a pulling-connecting piece (3) for connecting the outer end face of a screw rod; the top of the support frame is provided with a flat supporting top plate (1), and the lower part of the support frame is provided with a lifting mechanism capable of adjusting the height of the flat supporting top plate (1); the belt conveying structure (8) is longitudinally arranged in the center of the upper surface of the flat support top plate (1) along the flat support top plate (1), the belt conveying structure (8) comprises a belt ring and two end support rollers which are in transmission connection through the belt ring, a plurality of middle support rollers for supporting the belt ring are uniformly arranged between the two end support rollers, and the outer belt surface of the belt ring is coated with a lubricant; two sliding rails (9) which are longitudinal along the flat-support top plate (1) are symmetrically arranged on two sides of the upper surface of the flat-support top plate (1), each sliding rail (9) is clamped with a sliding block (2) which can slide along the sliding rail (9), two sides of the lower end of the mounting vertical plate (6) are fixedly connected with the two sliding blocks (2) respectively, a center hole is formed in the center of the plate surface of the mounting vertical plate (6), the front end of a shell of the slow-turning motor (7) is fixed on the rear plate surface of the mounting vertical plate (6), a rotating shaft of the slow-turning motor (7) penetrates through the center hole in a rotating mode and is coaxially fixed with a rotary table (5), one end of three stranded ropes (4) is fixedly connected to the tail end of the pulling-connecting piece (3), and the other ends of the three stranded ropes (4) are uniformly fixed on the outer edge of the rotary table (5); the winding drum (10) is installed at the rear end of the upper surface of the flat support top plate (1), and the outer end of a winding rope wound on the winding drum (10) is fixedly connected with the rear end of a machine shell of the slow-turning motor (7).

2. The screw extruder screw rod pulling supporting device according to claim 1, wherein: the flat support device is characterized in that a flat support bottom plate (12) is arranged under the flat support top plate (1), lifting electric cylinders (11) are arranged at two ends between the flat support bottom plate (12) and the flat support top plate (1), and a plurality of trundles (13) with brakes are installed on the lower plate surface of the flat support bottom plate (12).

3. The screw extruder screw rod pulling supporting device according to claim 2, wherein: and a crossed folding expansion bracket (14) is arranged between the middle parts of the flat support bottom plate (12) and the flat support top plate (1).

4. The screw extruder screw rod pulling supporting device according to claim 1, wherein: the winding drum (10) is a manual winding drum or an electric winding drum.

5. The screw extruder screw rod pulling supporting device according to claim 1, wherein: the belt conveying structure (8) further comprises a lower supporting roller group which is located below the end supporting roller and used for returning the belt ring, and the end supporting roller and the middle supporting roller are both set to be V-shaped carrier rollers.

6. The supporting device for the screw rod of the screw extruder according to claim 1, wherein: the installation vertical plate (6) is designed into a door-shaped plate.