CN217451574U

CN217451574U - Steel band drafting arrangement

Info

Publication number: CN217451574U
Application number: CN202221566683.3U
Authority: CN
Inventors: 姚晓萌; 张峰; 姚晓岩; 郭传亮; 林成佳
Original assignee: Shanxi Shengfuchang Pipe Industry Co ltd
Current assignee: Shanxi Shengfuchang Pipe Industry Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-09-20
Anticipated expiration: 2032-06-21

Abstract

The application relates to a steel belt drafting device, which relates to the field of steel belt production and comprises a rack and a drafting roller set, wherein the drafting roller set comprises a first drafting roller and a second drafting roller which are respectively rotatably connected with the rack; a forward driving device and a reverse driving device are arranged on the frame, the forward driving device is connected with a second drawing roller, and the direction of the second drawing roller driving the steel belt is the advancing direction of the steel belt; the reverse driving device is connected with the first drawing roller, the direction of the first drawing roller driving the steel belt to drive is opposite to the advancing direction of the steel belt, and the rotating speed of the first drawing roller is smaller than that of the second drawing roller. This application has the effect of alleviating the straightness that can't fully improve the steel band.

Description

Steel band drafting arrangement

Technical Field

The application relates to the field of steel strip production, in particular to a steel strip drafting device.

Background

The steel strip is a narrow and long steel plate produced by various steel rolling enterprises in order to meet the requirements of different industrial departments on industrial production of various types of metal or mechanical products. The width of the steel strip is within 1300mm, and the length of the steel strip is slightly different according to the size of each roll.

In order to enable the steel strip to meet the subsequent processing requirements, a straightening machine is widely applied in a factory, the straightening machine extrudes the steel strip through a straightening roller to change the straightness of the steel strip, and after the steel strip passes through the straightening machine, large waves on the steel strip can be changed into small waves, so that the surface of the steel strip is almost flat and straight.

Since the straightener can only improve the flatness of the steel strip by extrusion and cannot extend the steel strip, when the straightener is applied to the steel strip with the thickness of less than 0.8mm, the straightener hardly straightens the steel strip, thereby causing a problem that the flatness of the steel strip cannot be sufficiently improved.

SUMMERY OF THE UTILITY MODEL

In order to alleviate the problem that the straightness of steel band can not be fully improved, the application provides a steel band drafting device.

The application provides a steel band drafting arrangement, adopts following technical scheme:

a steel belt drafting device comprises a rack and a drafting roller set, wherein the drafting roller set comprises a first drafting roller and a second drafting roller which are respectively connected with the rack in a rotating manner, the diameter of the second drafting roller is the same as that of the first drafting roller, a steel belt is sequentially wound on the first drafting roller and the second drafting roller, and the first drafting roller and the second drafting roller can drive the steel belt to transmit along the rotating direction of the steel belt when rotating; a forward driving device and a reverse driving device are arranged on the frame, the forward driving device is connected with a second drawing roller, and the direction of the second drawing roller driving the steel belt is the advancing direction of the steel belt; the reverse driving device is connected with the first drawing roller, the direction of the first drawing roller driving the steel belt to drive is opposite to the advancing direction of the steel belt, and the rotating speed of the first drawing roller is smaller than that of the second drawing roller.

Through adopting above-mentioned technical scheme, forward drive arrangement drive second draft roller rotates, the second draft roller drives the steel band and carries out the transmission along the rotation direction of self, and simultaneously, reverse drive arrangement drive first draft roller rotates towards the direction opposite with steel band direction of advance, according to above-mentioned operating mode, first draft roller and second draft roller drive the steel band and drive towards opposite direction transmission, this makes formed the tension along steel band length direction on the steel band between first draft roller and the second draft roller, and then the steel band produces the extension along the length direction of self, the problem of the straightness of unable fully improved steel band has been alleviated.

Optionally, the forward driving device includes a first motor and a first speed reducer, both the first motor and the first speed reducer are fixedly connected with the frame, an output shaft of the first motor is fixedly connected with a coupler of the first speed reducer, and an output shaft of the first speed reducer is fixedly connected with a coupler of the second drafting roller; the structure of the reverse driving device is the same as that of the forward driving device.

By adopting the technical scheme, the first motor works, the output shaft of the first motor drives the first speed reducer to work, and the output shaft of the first speed reducer drives the second drafting roller to rotate, so that the purpose of driving the steel belt to transmit can be achieved.

Optionally, the draft roller set further comprises a third draft roller and a fourth draft roller which are arranged between the first draft roller and the second draft roller, the third draft roller and the fourth draft roller are rotatably connected with the frame, the diameters of the third draft roller and the fourth draft roller are the same as the diameter of the first draft roller, and the steel belt passes through the first draft roller and then sequentially surrounds the third draft roller, the fourth draft roller and the second draft roller in an S shape.

Through adopting above-mentioned technical scheme, increase third draft roller and fourth draft roller in draft roller set, can increase the tension on the steel band between first draft roller and the second draft roller to the problem of the straightness that can't fully improve the steel band has further been alleviated.

Optionally, the steel belt drawing device further comprises a braking device, the braking device is arranged at one end, close to the first drawing roller, of the frame, and the braking device is used for stopping transmission of the steel belt.

Through adopting above-mentioned technical scheme, after the unexpected stop work of forward drive arrangement, arresting gear's setting can avoid first draft roller to drive the steel band towards the direction transmission opposite with the steel band direction of advance, also plays the guard action simultaneously.

Optionally, the braking device includes a hydraulic cylinder and a braking rod, the hydraulic cylinder is fixedly connected to the frame, the braking rod is hinged to the frame, a piston rod of the hydraulic cylinder is hinged to one end of the braking rod, and a braking block is arranged at the other end of the braking rod.

Through adopting above-mentioned technical scheme, the pneumatic cylinder during operation, the piston rod of pneumatic cylinder slides to the direction that is close to the brake lever, and the brake lever rotates around the connecting rod, makes the steel band butt on brake pads and the first draft roller to make the steel band braking.

Optionally, one side of the brake block close to the steel strip is arc-shaped, and the brake block can be completely and tightly abutted against the steel strip wound on the first drawing roller.

Through adopting above-mentioned technical scheme, set up the one side that is close to the steel band with the brake pads into the arc, can increase the area of contact of brake pads and steel band, increase the frictional force between steel band and the brake pads to improve the security performance.

Optionally, an auxiliary roller is fixedly arranged at one end of the frame close to the second drafting roller, and the auxiliary roller is rotatably connected with the frame and supported below the steel belt.

Through adopting above-mentioned technical scheme, when the steel band got into the frame, the auxiliary roll can support the steel band, and the steel band encloses forward again and establishes on first draft roller, and the setting of auxiliary roll can play the guard action to the steel band.

Optionally, the topmost end of the auxiliary roller and the bottommost end of the first drafting roller are on the same horizontal plane.

Through adopting above-mentioned technical scheme, through setting up the topmost with the auxiliary roller and the bottommost of first draft roller on same horizontal plane, can make on the contact of the bottommost of steel band and first draft roller, increase the length of contact between steel band and the first draft roller, frictional force between increase steel band and the first draft roller to tension on the increase steel band alleviates the problem of the straightness that can't fully improve the steel band.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the steel belt can extend along the length direction of the steel belt by arranging the reverse driving device, so that the problem that the straightness of the steel belt cannot be fully improved is solved;

2. the third drawing roller and the fourth drawing roller are arranged, so that the tension on the steel strip can be increased, and the problem that the flatness of the steel strip cannot be fully improved is further solved;

3. the brake blocks are arranged in an arc shape, so that the friction force between the steel strip and the brake blocks can be increased, and the safety performance is improved.

Drawings

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

fig. 2 is an overall sectional view of an embodiment of the present application.

Description of reference numerals: 1. a frame; 11. a groove; 12. an auxiliary roller; 2. a drawing roller set; 21. a first draft roller; 22. a second draft roller; 23. a third draft roller; 24. a fourth draft roller; 3. a forward drive; 31. a first motor; 32. a first speed reducer; 4. a reverse drive device; 41. a second motor; 42. a second speed reducer; 5. a braking device; 51. a hydraulic cylinder; 511. a piston rod; 52. a brake lever; 521. a brake pad; 53. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a steel belt drafting device. Referring to fig. 1, a steel band draft device includes frame 1, draft roller set 2, forward drive arrangement 3, reverse drive arrangement 4 and arresting gear 5 all set up in frame 1, forward drive arrangement 3, reverse drive arrangement 4 is connected with draft roller set 2 respectively, the steel band encloses and establishes on draft roller set 2, forward drive arrangement 3 is used for making the steel band along self direction of advance transmission, reverse drive arrangement 4 is used for making and forms the speed difference on the steel band, arresting gear 5 is used for making the steel band stop the transmission.

Referring to fig. 1, a frame 1 is a horizontally arranged groove-shaped structure, an opening of the frame 1 faces upward, a groove 11 is formed in the bottom of one end of the frame 1, and an auxiliary roller 12 is rotatably arranged at one end of the frame 1 far away from the groove 11.

Referring to fig. 1, the draft roller set 2 includes a first draft roller 21 and a second draft roller 22 respectively horizontally disposed on the frame 1, the first draft roller 21 is located at an end far away from the auxiliary roller 12, the second draft roller 22 is located at an end close to the auxiliary roller 12, diameters of the first draft roller 21 and the second draft roller 22 are the same, axes of the first draft roller 21 and the second draft roller 22 are both perpendicular to a length direction of the frame 1, an axis position of the second draft roller 22 is higher than an axis position of the first draft roller 21, a bottom end of the first draft roller 21 and a top end of the auxiliary roller 12 are on the same horizontal plane, and the first draft roller 21 and the second draft roller 22 are both rotatably connected to the frame 1; a third drafting roller 23 and a fourth drafting roller 24 are rotatably arranged on the frame 1 between the first drafting roller 21 and the second drafting roller 22, the diameters of the third drafting roller 23 and the fourth drafting roller 24 are the same as those of the first drafting roller 21, the axial directions of the third drafting roller 23 and the fourth drafting roller 24 are the same as that of the first drafting roller 21, the axial height of the third drafting roller 23 is between the first drafting roller 21 and the second drafting roller 22, and the axial height of the fourth drafting roller 24 is the same as that of the third drafting roller 23.

The steel belt horizontally penetrates into the frame 1 from one end of the auxiliary roller 12 of the frame 1, is in rolling connection with the auxiliary roller 12, and is sequentially arranged on the first drafting roller 21, the third drafting roller 23, the fourth drafting roller 24 and the second drafting roller 22 in an S-shaped surrounding manner from the bottom end of the first drafting roller 21 after entering the frame 1, and leaves from the top end of the second drafting roller 22 in the direction close to the first drafting roller 21.

Referring to fig. 1, the forward driving device 3 includes a first motor 31 and a first speed reducer 32, the first motor 31 and the first speed reducer 32 are both fixedly connected to the frame 1 and located at one end of the second drawing roller 22, an output shaft of the first motor 31 is fixedly connected to a coupling of the first speed reducer 32, and an output shaft of the first speed reducer 32 is fixedly connected to a coupling of the second drawing roller 22.

When the first motor 31 works, the first motor 31 drives the first speed reducer 32 to work, the first speed reducer 32 drives the second drafting roller 22 to rotate, and the second drafting roller 22 drives the steel belt at the top end of the second drafting roller 22 to transmit towards the direction close to the first drafting roller 21.

Referring to fig. 1, the structure of the direction driving device is the same as that of the forward driving device 3, the reverse driving device 4 includes a second motor 41 and a second speed reducer 42, both the second motor 41 and the second speed reducer 42 are fixedly connected with the frame 1 and located at one end of the first drafting roller 21, an output shaft of the second motor 41 is fixedly connected with a coupling of the second speed reducer 42, and an output shaft of the second speed reducer 42 is connected with a coupling of the first drafting roller 21; the rotational speed of the first draft roller 21 is lower than the rotational speed of the second draft roller 22.

When the second motor 41 works, the second motor 41 drives the second speed reducer 42 to work, the second speed reducer 42 drives the first drafting roller 21 to rotate, and the rotation direction of the first drafting roller 21 is opposite to the transmission direction of the steel belt.

Referring to fig. 2, the braking device 5 includes a hydraulic cylinder 51, a brake lever 52 and a connecting rod 53, the hydraulic cylinder 51 is fixedly disposed in the groove 11 of the frame 1, a piston rod 511 of the hydraulic cylinder 51 is disposed along the length direction of the frame 1, the connecting rod 53 is fixedly disposed on the side wall of the groove 11, the connecting rod 53 is located in the direction in which the piston rod 511 extends, the length direction of the connecting rod 53 is parallel to the axial direction of the first drawing roller 21, the middle portion of the brake lever 52 is rotatably connected to the connecting rod 53, the piston rod 511 of the hydraulic cylinder 51 is hinged to one end of the brake lever 52, the other end of the brake lever 52 is fixedly disposed with a brake block 521, one side of the brake block 521 close to the steel belt is arc-shaped, and when the piston rod 511 of the hydraulic cylinder 51 extends, the brake block 521 can be completely and tightly abutted to the steel belt wound on the first drawing roller 21.

When the hydraulic cylinder 51 is operated, the piston rod 511 of the hydraulic cylinder 51 slides in the direction of the tie bar 53, and the brake lever 52 rotates around the tie bar 53, so that the brake shoe 521 is brought into close contact with the steel belt, and the steel belt stops transmission.

The steel strip drafting device in the embodiment of the application has the implementation principle that: the steel belt horizontally penetrates into the frame 1 from one end of an auxiliary roller 12 of the frame 1, is in rolling connection with the auxiliary roller 12, and is sequentially arranged on the first drawing roller 21, the third drawing roller 23, the fourth drawing roller 24 and the second drawing roller 22 in an S-shaped surrounding manner from the bottom end of the first drawing roller 21 after entering the frame 1, and leaves from the top end of the second drawing roller 22 to the direction close to the first drawing roller 21; simultaneously starting the second motor 41 and the first motor 31, driving the first speed reducer 32 to work by the first motor 31, driving the second drawing roller 22 to rotate by the first speed reducer 32, and driving the steel belt at the top end of the second drawing roller 22 to move towards the direction close to the first drawing roller 21 by the second drawing roller 22; the second motor 41 drives the second speed reducer 42 to work, the second speed reducer 42 drives the first drafting roller 21 to rotate, the first drafting roller 21 rotates in the opposite direction to the steel belt transmission direction, the steel belt located at the first drafting roller 21 and the second drafting roller 22 has speed difference, and tension along the length direction of the steel belt is formed on the steel belt between the first drafting roller 21 and the second drafting roller 22, so that the steel belt extends along the length direction of the steel belt, and the problem that the flatness of the steel belt cannot be fully improved is solved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A steel strip drafting device, characterized in that: the steel belt drawing device comprises a rack (1) and a drawing roller set (2), wherein the drawing roller set (2) comprises a first drawing roller (21) and a second drawing roller (22) which are respectively rotatably connected with the rack (1), the diameter of the second drawing roller (22) is the same as that of the first drawing roller (21), a steel belt is sequentially wound on the first drawing roller (21) and the second drawing roller (22), and the first drawing roller (21) and the second drawing roller (22) can drive the steel belt to transmit along the rotation direction of the steel belt when rotating; a forward driving device (3) and a reverse driving device (4) are arranged on the rack (1), the forward driving device (3) is connected with a second drawing roller (22), and the direction of the steel belt driven by the second drawing roller (22) is the advancing direction of the steel belt; the reverse driving device (4) is connected with the first drawing roller (21), the direction of the steel belt transmission driven by the first drawing roller (21) is opposite to the advancing direction of the steel belt, and the rotating speed of the first drawing roller (21) is smaller than that of the second drawing roller (22).

2. A steel strip drawing apparatus as claimed in claim 1, wherein: the forward driving device (3) comprises a first motor (31) and a first speed reducer (32), the first motor (31) and the first speed reducer (32) are both fixedly connected with the rack (1), an output shaft of the first motor (31) is fixedly connected with a coupler of the first speed reducer (32), and an output shaft of the first speed reducer (32) is fixedly connected with a coupler of the second drafting roller (22); the structure of the reverse driving device (4) is the same as that of the forward driving device (3).

3. A steel strip drawing apparatus as claimed in claim 1, wherein: draft roller set (2) are still including setting up third draft roller (23), fourth draft roller (24) between first draft roller (21) and second draft roller (22), and third draft roller (23), fourth draft roller (24) all rotate with frame (1) and are connected, and the diameter of third draft roller (23), fourth draft roller (24) is the same with the diameter of first draft roller (21), and the steel band is through behind first draft roller (21), forward enclose in proper order with the S-shaped and establish on third draft roller (23), fourth draft roller (24) and second draft roller (22).

4. A steel strip drawing apparatus as claimed in claim 1, wherein: the steel belt drawing machine further comprises a braking device (5), wherein the braking device (5) is arranged at one end, close to the first drawing roller (21), of the machine frame (1), and the braking device (5) is used for enabling the steel belt to stop transmission.

5. A steel strip drafting apparatus as claimed in claim 4, wherein: the braking device (5) comprises a hydraulic cylinder (51) and a braking rod (52), the hydraulic cylinder (51) is fixedly connected with the rack (1), the braking rod (52) is hinged with the rack (1), a piston rod (511) of the hydraulic cylinder (51) is hinged with one end of the braking rod (52), and a braking block (521) is arranged at the other end of the braking rod (52).

6. A steel strip drafting apparatus as claimed in claim 5, wherein: one side of the brake block (521) close to the steel strip is arc-shaped, and the brake block (521) can be completely and tightly abutted against the steel strip wound on the first drawing roller (21).

7. A steel strip drawing apparatus as claimed in claim 1, wherein: and one end of the frame (1) close to the second drafting roller (22) is fixedly provided with an auxiliary roller (12), and the auxiliary roller (12) is rotatably connected with the frame (1) and supported below the steel belt.

8. A steel strip drafting apparatus as claimed in claim 7, wherein: the topmost end of the auxiliary roller (12) and the bottommost end of the first drafting roller (21) are on the same horizontal plane.