CN212857188U

CN212857188U - Stretch bending straightening machine

Info

Publication number: CN212857188U
Application number: CN202021082999.6U
Authority: CN
Inventors: 濮雨润; 袁选利
Original assignee: Yongxin Precision Material Wuxi Co ltd
Current assignee: Yongxin Precision Material Wuxi Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-04-02
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a stretch bending straightening machine belongs to thin steel band processing technology field. The stretch bending straightening machine comprises an unwinding device, a flattening device and an anti-wrinkling device, wherein a steel belt is wound on the unwinding device, the flattening device is arranged at the lower reaches of the unwinding device and used for straightening the steel belt unwound by the unwinding device in a stretch bending mode, the anti-wrinkling device is arranged between the unwinding device and the flattening device, and the anti-wrinkling device can be used for following the width direction of the steel belt is right for the steel belt to apply thrust from the middle to two sides so as to flatten the steel belt. The stretch bending straightener can prevent the steel belt from wrinkling before entering the flattening device, and improves the straightness of the steel belt, so that the quality of the steel belt product is improved, the rejection rate of the steel belt product is reduced, and the cost is saved.

Description

Stretch bending straightening machine

Technical Field

The utility model relates to a thin steel strip processing technology field especially relates to a stretch bending straightening machine.

Background

At present, the production of extremely thin and precise stainless steel strip products generally needs the procedures of rolling, bright annealing, degreasing, stretch bending straightening and the like. Wherein, the stretch bending and straightening of the steel strip is an important link for improving the shape and the mechanical property of the steel strip product.

As the requirements of customers for the thickness of steel strip products become thinner, for example, the thinnest thickness has reached 0.020mm and 0.030mm, the thin steel strips can be torn by hands. When final stretch-bending straightening treatment is carried out, the uncoiler unreels the steel strip coil with small tension and enters the flattening device through the guide roller, steel strip wrinkling easily occurs, the steel strip cannot enter the flattening device to carry out stretch-bending straightening treatment on the steel strip, and products are wrinkled and scrapped.

Therefore, there is a need for a stretch-bending straightener capable of preventing wrinkling of the steel strip to solve the above-mentioned technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stretch bending straightener, this stretch bending straightener can prevent that the steel band from wrinkling before getting into the leveling device, has improved the straightness of steel band to improve the quality of steel band product, reduced the disability rate of steel band product, saved the cost.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a stretch bending straightener, includes unwinding device and levels the device, the steel band convolute in unwinding device is last, level the device set up in unwinding device's low reaches, it is right to be used for unwinding device unreels the steel band carries out stretch bending straightening treatment, stretch bending straightener is still including preventing the device of wrinkling, prevent that the device of wrinkling set up in unwinding device with level between the device, it can follow to prevent that the device of wrinkling is right the steel band width direction is applyed from the centre to the thrust on both sides with the exhibition flat the steel band.

As a preferred technical scheme of the stretch-bending straightener, the anti-wrinkling device comprises a guide roll, the guide roll is abutted against the surface of the steel belt, the rotating direction of the guide roll is opposite to that of the unreeling device, and left-handed threads and right-handed threads are symmetrically arranged on the outer peripheral surface of the guide roll along the axial direction of the guide roll.

As a preferred technical scheme of the stretch bending straightener, the left-handed threads and the right-handed threads are single threads.

As a preferred technical scheme of the stretch bending straightener, the left-handed threads and the right-handed threads are both rectangular threads or trapezoidal threads.

As a preferred technical scheme of the stretch bending straightener, the thread pitches of the left-handed thread and the right-handed thread are both adjustable.

As a preferred technical scheme of the stretch bending straightener, the lead angles of the left-handed threads and the right-handed threads are adjustable.

As a preferred technical scheme of the stretch bending straightener, the anti-wrinkling device further comprises a lifting adjusting assembly, and the lifting adjusting assembly is connected with the guide rollers and used for adjusting the heights of the guide rollers.

As a preferred technical scheme of the stretch bending straightener, the lifting adjusting assembly comprises a support and a lifting oil cylinder, one end of the support is connected with the guide roll, and the other end of the support is connected with the output end of the lifting oil cylinder.

As a preferred technical scheme of the stretch bending straightener, the outer surface of the guide roll is provided with a scratch-resistant layer.

As a preferred technical scheme of the stretch bending straightener, the anti-rubbing layer is an insulating grease layer.

The utility model provides a stretch bending straightening machine, this stretch bending straightening machine has set up the device of preventing corrugating between unwinding device and leveling device, prevent that the device of corrugating can follow the steel band width direction and applys the thrust to both sides from the centre to the steel band, thereby unreel the steel band that unwinding device comes out and flatten to both sides from the centre, then the steel band reentrants leveling device carries out stretch bending straightening treatment, this stretch bending straightening machine can prevent effectively that the steel band from corrugating before getting into leveling device, the straightness of steel band has been improved, thereby the quality of steel band product has been improved, the disability rate of steel band product has been reduced, and the cost is saved.

Drawings

FIG. 1 is a schematic structural view of a stretch bending straightener according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a guide roller according to an embodiment of the present invention.

Reference numerals:

1. an unwinding device; 2. a steel belt; 3. a leveling device;

4. a crimping device; 41. a guide roller; 411. left-handed threads; 412. right-hand threads; 42. a lift adjustment assembly; 421. a support; 422. a lift cylinder.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the present embodiment provides a stretch bending straightener, which includes an unwinding device 1, a leveling device 3, and an anti-wrinkling device 4, wherein a steel strip 2 is wound on the unwinding device 1, the leveling device 3 is disposed downstream of the unwinding device 1, and is used for stretch bending straightening treatment of the steel strip 2 unwound from the unwinding device 1, the anti-wrinkling device 4 is disposed between the unwinding device 1 and the leveling device 3, and the anti-wrinkling device 4 can apply thrust from the middle to both sides to the steel strip 2 in the width direction of the steel strip 2 to flatten the steel strip 2.

This stretch-bending straightener has set up between unwinding device 1 and levelling device 3 and has prevented wrinkling device 4, prevent wrinkling device 4 can be followed 2 width direction of steel band and applyed the thrust to both sides from the centre to steel band 2, thereby unreel unwinding device 1 steel band 2 that comes out from the centre to the exhibition flat in both sides, then steel band 2 reentrants levelling device 3 carries out stretch-bending straightening treatment, prevent that steel band 2 from wrinkling before getting into levelling device 3, the straightness of steel band 2 has been improved, thereby the quality of steel band product has been improved, the disability rate of steel band product has been reduced, and the cost is saved.

Specifically, the anti-wrinkling device 4 comprises a guide roller 41, the guide roller 41 is pressed against the surface of the steel strip 2, as shown in fig. 2, the rotation direction of the guide roller 41 is opposite to the rotation direction of the unwinding device 1, and a left-handed thread 411 and a right-handed thread 412 are symmetrically arranged on the outer peripheral surface of the guide roller 41 along the axial direction of the guide roller. The guide roller 41 rotates by friction with the steel strip 2, in this embodiment, as shown in fig. 1, the unwinding device 1 rotates counterclockwise, and the guide roller 41 rotates clockwise by abutting against the upper surface of the steel strip 2, so as to prevent a slip between the guide roller 41 and the steel strip 2. When the steel strip 2 passes under the guide roller 41, the left-handed thread 411 and the right-handed thread 412 which are symmetrically arranged on the guide roller 41 apply flattening thrust to the steel strip 2 along the width direction of the steel strip 2, wherein the flattening thrust moves from the middle of the steel strip 2 to two sides of the steel strip 2, so that the steel strip 2 cannot wrinkle due to unwinding tension, the problem that stretch bending straightening processing cannot be realized due to wrinkling generated during stretch bending, straightening and unwinding of an extremely thin steel strip (with the thickness of 0.020mm or 0.030mm) is solved, the requirements of customers on straightness of the extremely thin steel strip and a precise stainless steel strip are met, the plate type quality level of the extremely thin steel strip product is improved, and the market competitiveness of the extremely thin steel strip product is increased.

Alternatively, the left-hand threads 411 and the right-hand threads 412 are single threads, and in other embodiments, the left-hand threads 411 and the right-hand threads 412 can be double threads or multiple threads. Preferably, the left-hand threads 411 and the right-hand threads 412 are rectangular threads or trapezoidal threads, and the rectangular threads and the trapezoidal threads have larger contact areas with the steel strip 2 than the triangular threads and the zigzag threads, so that the thin steel strip 2 is not easily damaged.

Further alternatively, the pitches of the left-handed thread 411 and the right-handed thread 412 are adjustable, the smaller the pitch is, the larger the contact area between the left-handed thread 411 and the right-handed thread 412 and the steel strip 2 is, the more stable the contact between the guide roller 41 and the steel strip 2 is, and the less slipping is caused; the larger the pitch is, the smaller the contact area between the left-hand thread 411 and the right-hand thread 412 and the steel strip 2 is, which is not only easy to slip but also may not flatten the steel strip 2. It is further preferable that the lead angles of the left-handed thread 411 and the right-handed thread 412 are adjustable, the lead angles determine the magnitude of the flattening thrust of the left-handed thread 411 and the right-handed thread 412 on the steel strip 2, the larger the lead angle is, the larger the flattening thrust is, but there is a possibility of damage to the steel strip 2, and in this embodiment, the lead angles of the left-handed thread 411 and the right-handed thread 412 are preferably 3.5 °. The left-handed thread 411 and the right-handed thread 412 are symmetrical as far as possible, so that the flattening thrust applied to the steel strip 2 by the left-handed thread 411 and the flattening thrust applied to the steel strip 2 by the right-handed thread 412 are symmetrical, the steel strip 2 is prevented from wrinkling, and the straightness of the steel strip 2 can be further improved. In other embodiments, other parameters of the left-hand threads 411 and the right-hand threads 412 can be adjusted, but are within the scope of the present embodiment.

As shown in fig. 1, the wrinkle preventing device 4 further includes a lifting adjustment assembly 42, and the lifting adjustment assembly 42 is connected to the guide roller 41 for adjusting the height of the guide roller 41. According to the height of the leveling device 3, the lifting adjusting assembly 42 can adjust the height of the guide roller 41, so that the steel strip 2 conveyed out by the guide roller 41 can more smoothly enter the leveling device 3 for stretch bending and straightening treatment; and the downward pressure to the steel strip 2 can be adjusted, and the pressure to the steel strip 2 by the guide roller 41 can be adjusted by adjusting the height of the guide roller 41 because the friction force and the pressure are in a direct proportion relation, so that the phenomenon of slipping between the steel strip 2 and the guide roller 41 is avoided.

Specifically, the lifting adjustment assembly 42 includes a support 421 and a lifting cylinder 422, one end of the support 421 is connected with the guide roller 41, and the other end is connected with an output end of the lifting cylinder 422. The lifting cylinder 422 drives the support 421 to be raised or lowered in the vertical direction to adjust the raising or lowering of the guide roller 41, thereby adjusting the decrease or increase in the pressure of the guide roller 41 against the steel strip 2.

Preferably, the outer surface of the guide roller 41 is coated with a scratch-resistant layer, and the scratch-resistant layer is arranged to prevent the guide roller 41 from scratching the steel strip 2 in the process of flattening the steel strip 2. Preferably, in the present embodiment, the anti-scratch layer is preferably an insulating grease layer.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a stretch bending straightener, includes unwinding device (1) and levels device (3), steel band (2) convolute in unwinding device (1) is last, level device (3) set up in unwinding device's (1) low reaches, it is right unwinding device (1) unreels steel band (2) carry out stretch bending straightening processing, a serial communication port, stretch bending straightener is still including preventing wrinkling device (4), prevent wrinkling device (4) set up in unwinding device (1) with level between device (3), prevent wrinkling device (4) and can follow steel band (2) width direction is right steel band (2) are applyed from the centre to the thrust on both sides in order to open up paper steel band (2).

2. The stretch-bending straightener according to claim 1, wherein the wrinkle preventing device (4) comprises a guide roller (41), the guide roller (41) is pressed against the surface of the steel strip (2), the rotation direction of the guide roller (41) is opposite to the rotation direction of the unwinding device (1), and the outer circumferential surface of the guide roller (41) is symmetrically provided with a left-handed thread (411) and a right-handed thread (412) along the axial direction thereof.

3. Stretch bending straightener according to claim 2, characterized in that the left-hand thread (411) and the right-hand thread (412) are single threads.

4. Stretch bending straightener according to claim 2, characterized in that the left-hand thread (411) and the right-hand thread (412) are both rectangular threads or trapezoidal threads.

5. Stretch-bending straightener according to claim 2, characterized in that the pitch of the left-hand thread (411) and the right-hand thread (412) are both adjustable.

6. Stretch-bending straightener according to claim 2, characterized in that the lead angle of the left-hand thread (411) and the right-hand thread (412) is adjustable.

7. Stretch-bending straightener according to claim 2, characterized in that the anti-wrinkling device (4) further comprises a lifting adjustment assembly (42), the lifting adjustment assembly (42) being connected to the guide roll (41) for adjusting the height of the guide roll (41).

8. Stretch-bending straightener according to claim 7, characterized in that the lifting adjustment assembly (42) comprises a bracket (421) and a lifting cylinder (422), the bracket (421) being connected to the guide roll (41) at one end and to the output of the lifting cylinder (422) at the other end.

9. Stretch-bending straightener according to claim 2, characterized in that the outer surface of the guide roll (41) is provided with a scratch-resistant layer.

10. A stretch-bending straightener as claimed in claim 9, wherein the anti-galling layer is an insulating grease layer.