CN219851460U - Open type high-precision composite straightener - Google Patents

Abstract

The utility model discloses an open type high-precision composite straightening machine, which comprises a frame consisting of an upper frame and a lower frame, wherein one end of the upper frame is hinged with one end of the lower frame through a rotating shaft, the other end of the lower frame is provided with an oil cylinder, the top of a piston rod of the oil cylinder is contacted with the bottom of the upper frame, and when the composite straightening machine needs to be opened, the upper frame is supported by the piston rod of the oil cylinder; a stretching bending straightening unit and a parallel roller straightening unit are sequentially arranged in the frame along the direction from the oil cylinder to the rotating shaft; in addition, gap eliminating mechanisms are arranged between the upper frame and the lower frame and positioned at the joint of the stretching bending straightening unit and the parallel roller straightening unit and below the rotating shaft. The composite straightening machine adopts an open type structure, so that the roller box is convenient to clean and maintain; by adopting an integrated design, the integrated plate strip has the functions of both, shortens the length of a production line, and improves the yield of the plate strip; the gap eliminating structure is used, so that the gap of the equipment is eliminated, and the production precision of the equipment is ensured.

Description

Open type high-precision composite straightener

Technical Field

The utility model belongs to the technical field of metal plate and strip machining equipment, and particularly relates to an open type high-precision composite straightening machine.

Background

In the process of rolling and producing the plate and strip, the product has three defects of side waves, buckling, camber and the like due to unsuitable factors such as stability, pressure, roll shape, cooling water temperature, water pressure and the like, and is difficult to directly use. Particularly, in recent years, with the high-speed development of intelligent equipment (such as smart phones, unmanned vehicles, unmanned aerial vehicles and the like), downstream processes such as painting, coating and stamping all use high-precision dies, so that strict requirements are imposed on the flatness of raw materials, and the defective plate and strip materials are required to be subjected to flattening and stretching straightening before the processes are carried out so as to meet the requirements of downstream production.

Currently, the following methods are generally adopted for the defects: firstly, stretching and bending the strip steel with certain tension along the roller surface of the working roller by using a stretching and bending straightener, so that the central surface of the plate strip material moves, the plate strip material is subjected to repeated bending and straightening, plastic deformation is generated on the plate strip material, and the plate strip material is straightened after the tension is removed. After the processing, the surface of the plate strip is smooth, but the internal stress of the plate strip is not eliminated, so that the plate strip which is not suitable for long-time parking can rebound and deform, the stamping is often cracked due to internal stress when the stamping processing is directly carried out, and a parallel roller type straightener is generally arranged for repeatedly bending the plate strip processed by the stretching bending straightener to eliminate the internal residual stress of the plate strip and change the mechanical property of a product. The method meets the requirement of product flatness to a certain extent, but the existing equipment has the following disadvantages:

firstly, the stretching bending straightener and the parallel roller straightener in the prior art are independent devices, and are sequentially arranged at intervals, so that the defects of large investment and large occupied area of a factory building exist;

secondly, in order to ensure the flatness of products, the stretching bending straightener and the parallel roller straightener in the prior art generally adopt a stable fixed structure, but the structure is inconvenient for cleaning and maintaining the roller box;

thirdly, the working roller of the stretching and bending straightener is related to the thickness of the plate to be pulled and straightened, one roller diameter can only adapt to a certain plate thickness range, different stretching and bending straighteners are required to be arranged for plates with different thicknesses in the prior art, and the input cost for production enterprises is obviously increased.

In view of the above, the present inventors have developed an open-type high-precision composite straightener to overcome the drawbacks of the prior art by years of experience and practice in related industries.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an open type high-precision composite straightener which integrates a stretching bending straightener and a parallel roller straightener, so that the length of a production line is obviously reduced, the overall cost of equipment is reduced, and the yield of a plate strip is improved; in addition, the composite straightening machine adopts an open type structure, and message mechanisms are arranged at the joint of the two and below the rotary unit, so that on one hand, the stability of the product during working is ensured, and on the other hand, the roller box is convenient to clean and maintain, thereby ensuring the production precision of equipment.

The utility model aims at solving the problems by the following technical scheme:

the open type high-precision composite straightening machine comprises a frame, wherein the frame consists of an upper frame and a lower frame, one end of the upper frame is hinged with one end of the lower frame through a rotating shaft, the other end of the lower frame is longitudinally provided with oil cylinders respectively vertically, the top of a piston rod of each oil cylinder is contacted with the bottom of the other end of the upper frame, and when the composite straightening machine needs to be opened, the upper frame is supported by the piston rod of each oil cylinder by taking the axis of the rotating shaft as a rotating center;

and a stretching bending straightening unit and a parallel roller straightening unit are sequentially arranged in the frame along the direction from the oil cylinder to the rotating shaft.

Further, the stretching bending straightening unit comprises a first bending unit, a second bending unit and a straightening unit, the diameter of a working roller of the first bending unit is larger than that of a working roller of the second bending unit, worm wheel screw lifters are arranged at the bottoms of the first bending unit, the second bending unit and the straightening unit, and the worm wheel screw lifters are used for controlling the first bending unit or the second bending unit to work and straightening the plate strips in different thickness ranges.

Further, the parallel roller straightening unit comprises a 23-roller upper roller box and a 23-roller lower roller box, wherein the 23-roller upper roller box is arranged at the bottom of the upper frame, and the 23-roller lower roller box matched with the 23-roller upper roller box is arranged at the top of the lower frame.

Further, a pressing mechanism is further installed on the upper frame, the bottom end of the pressing mechanism is fixedly connected with the upper roller box of the 23 roller, and the distance between the upper roller box of the 23 roller and the lower roller box of the 23 roller is further adjusted by adjusting the pressing height of the pressing mechanism.

Further, a deflection adjusting mechanism is horizontally arranged on the lower frame and below the 23-roller lower roller box.

Further, gap eliminating mechanisms are arranged between the upper frame and the lower frame and at the joint of the stretching bending straightening unit and the parallel roller straightening unit and below the rotating shaft, and are used for improving the production precision of equipment.

Further, the gap eliminating mechanism comprises a cylindrical shell fixedly arranged at the top of the lower frame, a disc spring set is placed in a cavity of the cylindrical shell, a stepped guide rod is arranged at the top of the disc spring set in the cavity of the cylindrical shell, a gland is fixedly connected to the top of the cylindrical shell, one side of the large end of the guide rod is restrained in the cavity of the cylindrical shell through the cooperation of the gland and the cylindrical shell, and the top of the guide rod is contacted with the lower surface of the upper frame through a reaction force generated by the disc spring set.

Further, a locking device is arranged at one end of the oil cylinder of the upper frame and the lower frame, and the locking device is used for locking the upper frame and the lower frame when the composite straightener works.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses an open type high-precision composite straightening machine, which adopts an integrated design, integrates a stretching bending straightening unit and a parallel roller straightening unit, is provided with a worm wheel screw lifter below the stretching bending straightening unit, is provided with an adjustable pressing mechanism above a 23-roller upper roller box, can independently use a stretching bending straightening function or a parallel roller straightening function during working, can also simultaneously use two functions, expands the application range, reduces the input cost of production enterprises, reduces the length of a production line and improves the yield of a plate strip.

2. The open type high-precision composite straightening machine adopts an open type structure of the upper and lower frames, thereby facilitating cleaning and maintenance of the interior of the machine by workers, in particular cleaning and maintenance of roller boxes.

3. The stretching bending straightening unit in the open type high-precision composite straightening machine is provided with two bending units with different diameters of working rolls, so that two kinds of plate strips with different ranges can be straightened, and the application range of the equipment is further expanded.

4. The utility model discloses an open type high-precision composite straightening machine, which is characterized in that a gap eliminating mechanism is arranged between an upper frame and a lower frame and at the joint of a stretching bending straightening unit and a parallel roller straightening unit and below a rotating shaft, so that on one hand, gaps caused by large span of equipment are eliminated, on the other hand, gaps caused by the rotating shaft are eliminated, and the production precision of the equipment is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate principles of the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a diagram showing the whole construction of an open type high precision composite straightener according to the present utility model;

FIG. 2 is a schematic diagram of the gap eliminating structure in the composite straightener of the present utility model.

Wherein: 1 is an upper frame; 2 is a lower frame; 3 is a rotating shaft; 4 is an oil cylinder; 5 is a stretching, bending and straightening unit; 6 is a parallel roller type straightening unit; 7 is a pressing mechanism; 8 is a deflection adjusting mechanism; 9 is a gap eliminating mechanism; 10 is a locking device; 51 is a first bending unit; 52 is a second bending unit; 53 is a straightening unit; 61 is a 23-roller upper roller box; 62 is a 23-roller lower roller box; 91 is a cylindrical housing; 92 is a disc spring set; 93 is a guide rod; 94 is a gland.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of devices that are consistent with aspects of the utility model that are set forth in the following claims.

The present utility model will be described in further detail below with reference to the drawings and examples for better understanding of the technical solutions of the present utility model to those skilled in the art.

As shown in fig. 1 to 2, the utility model provides an open type high precision composite straightener, which comprises a frame, wherein the frame consists of an upper frame 1 and a lower frame 2, one end of the upper frame 1 is hinged with one end of the lower frame 2 through a rotating shaft 3, the other end of the lower frame 2 is longitudinally and vertically provided with oil cylinders 4 respectively, preferably, the front and rear oil cylinders 4 are symmetrically arranged around the transverse central line of the frame, the top of a piston rod of each oil cylinder 4 is contacted with the bottom of the other end of the upper frame 1, and when the composite straightener needs to be opened, the upper frame 1 is supported by taking the axis of the rotating shaft 3 as a rotating center through the piston rod of the oil cylinder 4 so as to clean the inside for maintenance. In addition, a locking device 10 is arranged at one end of the upper frame 1 and the lower frame 2, which is positioned at the oil cylinder 4, and the locking device 10 is used for locking the upper frame 1 and the lower frame 2 when the composite straightening machine works, so that the upper frame is prevented from vibrating, the precision of equipment production is ensured, and the safety is ensured.

As shown in fig. 1, the composite straightener of the utility model adopts an integrated design, namely, a stretching bending straightening unit 5 and a parallel roller straightening unit 5 are sequentially arranged in a frame along the direction of a rotary shaft 3 of an oil cylinder 4, and the stretching bending straightening unit 5 and the parallel roller straightening unit 6 are both arranged at the center of the frame, so that when a plate strip is straightened, the plate strip with defects is inserted between the two oil cylinders 4 and then sequentially processed by the stretching bending straightening unit 5 and the parallel roller straightening unit 6. Compared with the prior art, the length of the production line is shortened, the waste of the plate strips is reduced, and the yield of the plate strips is improved.

Specifically, the stretch-bending straightening unit 5 of the present utility model includes a first bending unit 51, a second bending unit 52, and a straightening unit 53 which are sequentially disposed inward along one side (left side in the drawing) of the cylinder 4; wherein, the first bending unit 51, the second bending unit 52 and the straightening unit 53 are composed of an upper part and a lower part, the upper part is fixedly installed at the bottom of the upper frame 1, the lower part is installed on the lower frame 2 through a worm gear screw lifter (the prior art is not repeated), and the intervals between the lower parts of the first bending unit 51, the second bending unit 52 and the straightening unit 53 and the corresponding upper parts can be respectively controlled through the worm gear screw lifter, namely, whether the first bending unit 51, the second bending unit 52 and the straightening unit 53 work or not can be respectively controlled through the worm gear screw lifter.

The diameter of the working roll of the first bending unit 51 is larger than that of the working roll of the second bending unit 52, the first bending unit 51 or the second bending unit 52 is controlled to work through a worm gear screw lifter, and the compound straightening machine is used for straightening the plate strips in different thickness ranges, for example, when the diameter of the working roll of the first bending unit 51 is phi 25cm, the specification of the plate strips produced by the compound straightening machine is 0.15-1.0 mm, and when the diameter of the working roll of the second bending unit 52 is phi 16cm, the specification of the plate strips produced by the compound straightening machine is 0.05-0.3 mm. That is, the composite straightening machine adopts a two-bending one-straightening mode, and expands the processing range of the straightening plate strip of the equipment.

The parallel roller straightening unit 6 of the utility model comprises a 23-roller upper roller box 61 and a 23-roller lower roller box 62, wherein the 23-roller upper roller box 61 is arranged at the bottom of the upper frame 1, and the 23-roller lower roller box 62 matched with the 23-roller upper roller box 61 is arranged at the top of the lower frame 2. The upper frame 1 is further provided with a pressing mechanism 7, the bottom end of the pressing mechanism 7 is fixedly connected with the upper roller box 61 of the 23 roller, and the distance between the upper roller box 61 of the 23 roller and the lower roller box 62 of the 23 roller is further adjusted by adjusting the pressing height of the pressing mechanism 7.

Preferably, a deflection adjusting mechanism 8 is horizontally arranged on the lower frame 2 below the 23-roller lower roller box 62.

Through the arrangement, the stretching bending straightening unit 5 in the frame can be controlled by the worm wheel screw lifter to work or not, and the parallel roller straightening unit 6 can be adjusted by the pressing mechanism to work or not, namely, the stretching bending straightening function or the parallel roller straightening function can be independently used when the composite straightening machine works, and the two functions can be simultaneously used, so that the application range is expanded, and the input cost of a production enterprise is reduced.

Because the stretching bending straightener and the parallel roller straightener are combined into a whole, the transverse span of the integrated equipment is larger than that of the existing single equipment, and the span is large, so that deformation gaps are possibly generated in the middle of the equipment, and the production precision of the equipment is reduced. In order to eliminate the defects, the gap eliminating structure 9 is arranged between the upper frame 1 and the lower frame 2 and at the joint of the stretching bending straightening unit 5 and the parallel roller straightening unit 6, the upper frame 1 is supported by the gap eliminating structure 9, the gap caused by span is eliminated, and the precision of equipment production is improved; in addition, because the frame is opened by taking the rotating shaft 3 as a rotation center, a gap is necessarily formed, and a gap eliminating structure 9 is also arranged below the rotating shaft 3 between the upper frame 1 and the lower frame 2 and is used for eliminating the rotating gap, so that the production precision of equipment is further improved.

As shown in fig. 2, the anti-backlash mechanism 9 includes a cylindrical housing 91 fixedly disposed at the top of the lower frame 2, a disc spring set 92 is disposed in a cavity of the cylindrical housing 91, a stepped guide rod 93 is disposed at the top of the disc spring set 92 in the cavity of the cylindrical housing 91, a gland 94 is fixedly connected to the top of the cylindrical housing 91, and a large end of the guide rod 93 is restrained in the cavity of the cylindrical housing 91 by cooperation of the gland 94 and the cylindrical housing 91, and a reaction force generated by the disc spring set 92 contacts with the lower surface of the upper frame 1 at the top of the guide rod 93. Wherein, the top surface of guide bar 93 is the arc surface, and when the action point acted on the arc surface of guide bar 93, guide bar 93 moves down, compresses disc spring group 92, makes disc spring group 92 produce the deformation, and disc spring group 92 produces the reaction force to the action point simultaneously, can eliminate the clearance of action point to the precision of this compound straightener production has been guaranteed.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

It will be understood that the utility model is not limited to what has been described above and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (8)

1. The open type high-precision composite straightening machine is characterized by comprising a frame, wherein the frame consists of an upper frame (1) and a lower frame (2), one end of the upper frame (1) is hinged with one end of the lower frame (2) through a rotating shaft (3), the other end of the lower frame (2) is longitudinally provided with oil cylinders (4) respectively vertically at the front and back, the top of a piston rod of each oil cylinder (4) is contacted with the bottom of the other end of the upper frame (1), and when the composite straightening machine needs to be opened, the upper frame (1) is supported by taking the axis of the rotating shaft (3) as a rotating center through the piston rod of the oil cylinder (4);

a stretching bending straightening unit (5) and a parallel roller straightening unit (6) are sequentially arranged in the frame along the direction of the oil cylinder (4) to the rotating shaft (3).

2. The open type high-precision composite straightener according to claim 1 is characterized in that the stretch bending straightening unit (5) comprises a first bending unit (51), a second bending unit (52) and a straightening unit (53), the diameter of a working roll of the first bending unit (51) is larger than that of a working roll of the second bending unit (52), worm-gear screw lifters are arranged at the bottoms of the first bending unit (51), the second bending unit (52) and the straightening unit (53), and the worm-gear screw lifters are used for controlling the first bending unit (51) or the second bending unit (52) to work so as to straighten plate strips in different thickness ranges.

3. The open type high precision composite straightener according to claim 1, characterized in that the parallel roll straightening unit (6) comprises a 23 roll upper roll box (61) and a 23 roll lower roll box (62), the 23 roll upper roll box (61) is installed at the bottom of the upper frame (1), and the 23 roll lower roll box (62) matched with the 23 roll upper roll box (61) is installed at the top of the lower frame (2).

4. The open type high-precision composite straightener according to claim 3, characterized in that the upper frame (1) is further provided with a pushing mechanism (7), the bottom end of the pushing mechanism (7) is fixedly connected with the upper roller box (61) of the 23 roller, and the distance between the upper roller box (61) of the 23 roller and the lower roller box (62) of the 23 roller is further adjusted by adjusting the pushing height of the pushing mechanism (7).

5. An open type high precision composite straightener according to claim 3, characterized in that a deflection adjusting mechanism (8) is horizontally arranged on the lower frame (2) below the 23-roller lower roller box (62).

6. An open type high precision composite straightener according to claim 1, characterized in that an anti-backlash mechanism (9) is installed between the upper frame (1) and the lower frame (2) and at the junction of the stretching bending straightening unit (5) and the parallel roller straightening unit (6) and below the rotating shaft (3) for improving the precision of the equipment production.

7. The open type high-precision composite straightener according to claim 6, characterized in that the gap eliminating mechanism (9) comprises a cylindrical shell (91) fixedly arranged at the top of the lower frame (2), a disc spring group (92) is arranged in the cylindrical shell (91) cavity, a stepped guide rod (93) is arranged at the top of the disc spring group (92) in the cylindrical shell (91) cavity, a gland (94) is fixedly connected to the top of the cylindrical shell (91), the large end side of the guide rod (93) is restrained in the cylindrical shell (91) cavity through the cooperation of the gland (94) and the cylindrical shell (91), and the top of the guide rod (93) is contacted with the lower surface of the upper frame (1) through a reaction force generated by the disc spring group (92).

8. The open type high-precision composite straightener according to claim 1 is characterized in that a locking device (10) is arranged at one end of the oil cylinder (4) of the upper rack (1) and the lower rack (2), and the locking device (10) is used for locking the upper rack (1) and the lower rack (2) when the composite straightener works.