CN213223576U

CN213223576U - Intermediate roller in bending roller box of withdrawal and straightening machine

Info

Publication number: CN213223576U
Application number: CN202021692446.2U
Authority: CN
Inventors: 高亮; 张春林; 李嘉欣; 赵兵
Original assignee: Jiyuan Yubei Machinery Co ltd
Current assignee: Jiyuan Yubei Machinery Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-05-18
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a middle roller in a bending roller box of a withdrawal and straightening machine, which comprises a middle roller body, wherein the middle roller body comprises an intermediate shaft, a roller body is arranged outside the intermediate shaft, and a spiral rubber layer is laid outside the roller body; the middle shaft is rotatably mounted on the rack through a bearing, the middle shaft is hollow, one end of the middle shaft is sealed, the other end of the middle shaft is connected to one end of the air suction pipe through a rotary joint, the other end of the air suction pipe is connected to the vacuum pump, and through holes communicated with the interior of the middle shaft are uniformly distributed in the roller body; and an electrostatic elimination rod is also arranged in the middle shaft. The utility model discloses can effectively detach belted steel or the impurity on working roll surface, and then guarantee the processingquality of belted steel.

Description

Intermediate roller in bending roller box of withdrawal and straightening machine

Technical Field

The utility model belongs to the technical field of the machine equipment of straightening and withdrawal, concretely relates to middle roller in the crooked roller box of machine of straightening and withdrawal.

Background

Before the strip steel is used, the shape of the strip steel needs to be processed, wherein straightening is a common processing procedure, a withdrawal and straightening machine is used in the straightening process, and the currently commonly used withdrawal and straightening machine generally consists of two bending roller boxes and a straightening roller box. The roll box generally comprises a working roll, a middle roll and supporting rolls, wherein three groups of supporting rolls support two middle rolls, two groups of middle rolls support one working roll, and the working rolls act on the band steel. The middle roller is generally provided with a spiral groove for adhering dust, oxide and other residues falling from the strip steel so as to reduce the influence of impurities on the processing quality of the strip steel, but the impurities are easy to return to the working roller again and then return to the strip steel along with the rotation of each roller body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a middle roller in the bending roller box of the straightening and withdrawal machine that can in time clear away the residue of belted steel surface adhesion to the not enough of prior art, concrete scheme is as follows:

the middle roller in the bending roller box of the withdrawal and straightening machine comprises a middle roller body, wherein the middle roller body comprises an intermediate shaft, a roller body is arranged outside the intermediate shaft, and a spiral rubber layer is laid outside the roller body; the middle shaft is rotatably mounted on the rack through a bearing, the middle shaft is hollow, one end of the middle shaft is sealed, the other end of the middle shaft is connected to one end of the air suction pipe through a rotary joint, the other end of the air suction pipe is connected to the vacuum pump, and through holes communicated with the interior of the middle shaft are uniformly distributed in the roller body; and an electrostatic elimination rod is also arranged in the middle shaft.

Based on the above, the thread pitch of the spiral rubber layer is 1-1.2 cm.

Based on the above, the diameter of the through hole is 0.6-0.8 cm.

Based on the above, the bearing is a graphite copper bush bearing.

Based on the above, the spiral rubber layer is made of nitrile rubber or chloroprene rubber.

The utility model discloses relative prior art has substantive characteristics and progress, specifically speaking, the utility model has the following advantages:

the utility model discloses in, through designing into one end confined cavity with the jackshaft, set up the electrostatic elimination stick in the jackshaft, jackshaft external connection to the vacuum pump, the equipartition is connected to the through-hole of jackshaft on the roll body, and crooked roller box during operation under the negative pressure effect of vacuum pump, can inhale the jackshaft with near the impurity of middle roll body, under the effect of electrostatic elimination stick, can effectively solve to fall because of the appeal that static produced leads to partial impurity difficult easy inhaled problem.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the external structure of the present invention.

Fig. 3 is a schematic view of the position structure of the bending roller box of the invention.

In the figure: 1. a frame; 2. an intermediate roll body; 3. a bearing; 4. an intermediate shaft; 5. a roller body; 6. a spiral rubber layer; 7. a through hole; 8. a static elimination bar; 9. a vacuum pump; 10. an air intake duct; 11. a rotary joint; 12. strip steel.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

Examples

As shown in fig. 1-3, the utility model provides a middle roller in bending roller box of withdrawal and straightening unit, including middle roller body 2, middle roller body 2 includes jackshaft 4, jackshaft 4's outside is equipped with roll body 5, and spiral rubber layer 6 has been laid to roll body 5's outside.

The intermediate shaft 4 is rotatably installed on the frame 1 through the bearing 4, and the intermediate shaft 4 is hollow, and the one end of intermediate shaft 4 is sealed, and the other end of intermediate shaft 4 is connected to the one end of breathing pipe 10 through rotary joint 11, the other end of breathing pipe 10 is connected to vacuum pump 9, and the equipartition has the through-hole 7 that feeds through to the intermediate shaft 4 inside on the roll body 5.

The interior of the intermediate shaft 4 is also provided with an electrostatic elimination rod 8 so as to solve the problem that impurities are not easy to be absorbed due to static electricity.

The thread pitch of the spiral rubber layer 6 is 1-1.2 cm; the diameter of the through hole 7 is 0.6-0.8 cm.

In order to ensure the working performance of the intermediate roll body 2, the bearing 4 adopts a graphite copper sleeve bearing.

The spiral rubber layer 6 is made of nitrile rubber or chloroprene rubber with good antistatic property, so that impurities can be sucked into the intermediate shaft 4.

The utility model discloses concrete theory of operation: when the intermediate roll body 2 works, under the negative pressure generated by the vacuum pump 9, impurities on the surface of the strip steel 12, particularly impurities adhered to the working roll, are sucked into the through hole 7 and then enter the intermediate shaft 4; with respect to impurities which are not easily attracted from the surface of the strip steel 12 or the surface of the work roll due to the attraction force generated by static electricity, the electrostatic attraction between the impurities and the strip steel 12 is released by the static electricity eliminating bar 8, and the impurities are attracted to the intermediate shaft 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a middle roller in bending roll box of withdrawal and straightening unit which characterized in that: the roller comprises a middle roller body (2), wherein the middle roller body (2) comprises an intermediate shaft (4), a roller body (5) is arranged outside the intermediate shaft (4), and a spiral rubber layer (6) is laid outside the roller body (5); the roller is characterized in that the intermediate shaft (4) is rotatably mounted on the rack (1) through a bearing (3), the intermediate shaft (4) is hollow, one end of the intermediate shaft (4) is sealed, the other end of the intermediate shaft (4) is connected to one end of an air suction pipe (10) through a rotary joint (11), the other end of the air suction pipe (10) is connected to a vacuum pump (9), and through holes (7) communicated to the inside of the intermediate shaft (4) are uniformly distributed on the roller body (5); and an electrostatic elimination rod (8) is also arranged in the middle shaft (4).

2. The intermediate roll in the bending roll box of the withdrawal straightening machine as recited in claim 1, wherein: the thread pitch of the spiral rubber layer (6) is 1-1.2 cm.

3. The intermediate roll in the bending roll box of the withdrawal straightening machine as recited in claim 1, wherein: the diameter of the through hole (7) is 0.6-0.8 cm.

4. The intermediate roll in the bending roll box of the withdrawal straightening machine as recited in claim 1, wherein: the bearing (3) is a graphite copper bush bearing (3).

5. The intermediate roll in the bending roll box of the withdrawal straightening machine as recited in claim 1, wherein: the spiral rubber layer (6) is made of nitrile rubber or chloroprene rubber.