Hydraulic shear with belt head bending function

Abstract

The utility model belongs to the technical field of cold rolling temper mill equipment, and particularly relates to a hydraulic shear with a belt head bending function. The upper pressing plate and the lower pressing plate which are arranged at the strip steel inlet of the hydraulic shear strut are matched with the male die and the female die which are installed on the upper pressing plate and the lower pressing plate, a strip steel head can be upwarped and can be effectively prevented from being blocked, and meanwhile the strip steel shearing function can be conveniently achieved by combining the upper tool rest and the lower tool rest. The upper pressing plate of the strip steel head warping mechanism and the upper tool rest of the shearing mechanism share one set of driving device, the two functions of head warping and head cutting can be completed at the same station, the equipment arrangement space can be effectively saved, the equipment number is reduced, and the overall structure is compact.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold rolling skin pass machine equipment, and in particular relates to a hydraulic shear with a head bending function. Background Art

[0002] The main function of the hydraulic shear at the entrance of the cold rolling mill is to cut the strip head. When the strip head condition does not meet the requirements, the defective part is cut off so that the strip can continue to be threaded.

[0003] However, since the incoming material of the cold rolling mill is annealed strip steel, the strip head is soft and easy to sag, and the drooping strip head is easy to get stuck in the gap of the strip guide plate, causing jamming. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hydraulic shear with a head bending function, which can complete the two functions of head cutting and head warping at the same work station, effectively avoid equipment jamming and improve production efficiency.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A hydraulic shear with a strip head bending function, comprising a hydraulic shear support 1, wherein the hydraulic shear support 1 is arranged at the inlet side of a cold rolling skin-passing mill, and a strip shearing mechanism and a strip head bending mechanism are arranged on the side of the hydraulic shear support 1 facing the strip passing line;

[0007] The strip shearing mechanism comprises an upper tool holder 2 and a lower tool holder 3 respectively arranged on and below the strip passing line, wherein the upper tool holder 2 and the lower tool holder 3 are both slidably mounted on a hydraulic shear support 1, and the upper tool holder 2 and the lower tool holder 3 are both connected to a hydraulic drive device;

[0008] The strip warping mechanism includes an upper pressure plate 4 and a lower pressure plate 5, wherein the upper pressure plate 4 is fixedly connected to the upper tool holder 2, and a punch 6 is installed on the bottom surface of the upper pressure plate 4, the lower pressure plate 5 is arranged below the strip passing line and is fixedly connected to the hydraulic shear support 1, and a die 7 corresponding to the punch 6 is installed on the top surface of the lower pressure plate 5.

[0009] Preferably, the upper pressing plate 4 is arranged on a side of the upper tool holder 2 close to the entrance of the cold rolling mill.

[0010] Preferably, the bottom surface of the upper pressing plate 4 is flush with the bottom end of the upper tool holder 2 .

[0011] Preferably, the top surface of the lower pressing plate 5 is flush with the lower part of the strip passing line.

[0012] Preferably, the installation height of the lower tool holder 3 is lower than the installation height of the lower pressing plate 5 .

[0013] Preferably, the widths of the upper tool holder 2 and the lower tool holder 3 are both greater than the width of the passing strip.

[0014] Preferably, the positions of the male die 6 and the female die 7 correspond to the center line passing through the steel strip.

[0015] Preferably, the hydraulic drive device is specifically a hydraulic drive cylinder group, which is used to drive the upper tool holder 2 and the lower tool holder 3 to move vertically up and down along the side of the hydraulic shear support 1.

[0016] Compared with the prior art, the utility model has the following main advantages:

[0017] 1. The utility model provides a hydraulic shear with a strip head bending function. The upper and lower pressure plates arranged at the entrance of the strip steel of the hydraulic shear support and the convex and concave dies installed thereon cooperate to make the strip steel head tilt up, which can effectively avoid the strip head from being stuck. At the same time, the upper and lower knife holders are combined to conveniently realize the strip steel shearing function.

[0018] 2. The upper pressure plate of the strip steel warping mechanism and the upper knife holder of the shearing mechanism of the utility model share a set of driving devices, which can complete the two functions of warping and cutting at the same workstation, effectively saving equipment layout space, reducing the number of equipment, and making the overall structure compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the hydraulic shear structure in the embodiment of the utility model.

[0020] In the figure: 1- hydraulic shear support; 2- upper tool holder; 3- lower tool holder; 4- upper pressure plate; 5- lower pressure plate; 6- punch; 7- die. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0026] Embodiment 1, as Figure 1 As shown, this embodiment provides a hydraulic shear with a strip head bending function, comprising a hydraulic shear support 1, the hydraulic shear support 1 is arranged at the entrance side of the cold rolling and leveling mill, and the side of the hydraulic shear support 1 facing the strip passing line is provided with a strip shearing mechanism and a strip head bending mechanism;

[0027] The strip shearing mechanism comprises an upper tool holder 2 and a lower tool holder 3 respectively arranged on and below the strip passing line, wherein the upper tool holder 2 and the lower tool holder 3 are both slidably mounted on a hydraulic shear support 1, and the upper tool holder 2 and the lower tool holder 3 are both connected to a hydraulic drive device;

[0028] The strip warping mechanism includes an upper pressure plate 4 and a lower pressure plate 5, wherein the upper pressure plate 4 is fixedly connected to the upper tool holder 2, and a punch 6 is installed on the bottom surface of the upper pressure plate 4, the lower pressure plate 5 is arranged below the strip passing line and is fixedly connected to the hydraulic shear support 1, and a die 7 corresponding to the punch 6 is installed on the top surface of the lower pressure plate 5.

[0029] Furthermore, the upper pressing plate 4 is arranged on a side of the upper tool holder 2 close to the entrance of the cold rolling mill.

[0030] Furthermore, the bottom surface of the upper pressing plate 4 is flush with the bottom end of the upper tool holder 2 .

[0031] Furthermore, the top surface of the lower pressing plate 5 is flush with the lower part of the strip passing line.

[0032] Furthermore, the installation height of the lower tool holder 3 is lower than the installation height of the lower pressing plate 5 .

[0033] Furthermore, the widths of the upper tool holder 2 and the lower tool holder 3 are both greater than the width of the passing strip.

[0034] Furthermore, the positions of the male die 6 and the female die 7 correspond to the center line passing through the steel strip.

[0035] Furthermore, the hydraulic drive device is specifically a hydraulic drive cylinder group, which is used to drive the upper tool holder 2 and the lower tool holder 3 to move vertically up and down along the side of the hydraulic shear support 1.

[0036] Embodiment 2: This embodiment provides a hydraulic shear with a head bending function, wherein a pair of pressing plates are provided at the strip steel entrance of the lifting hydraulic shear, wherein the upper pressing plate has a convex die and the lower pressing plate has a concave die. The upper pressing plate is fixed on the upper tool holder of the lifting hydraulic shear, and the lower pressing plate is fixed below the entrance strip steel passing line.

[0037] When it is necessary to complete the shearing of the lead, the upper tool holder of the lifting hydraulic shear descends until the upper pressure plate touches the lower pressure plate and stops, then the lower tool holder rises, and the shear blade closes to complete the shearing action.

[0038] When the head tilting action needs to be completed, the strip passes through the lifting hydraulic shear, the upper tool holder of the hydraulic shear descends, and the upper pressure plate descends with the upper tool holder until it stops after hitting the lower pressure plate. The head of the strip completes the head tilting action under the action of the punch and die in the upper and lower pressure plates.

[0039] Furthermore, all parts involved in this application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0040] In summary:

[0041] 1. The utility model provides a hydraulic shear with a strip head bending function. The upper and lower pressure plates arranged at the entrance of the strip steel of the hydraulic shear support and the convex and concave dies installed thereon cooperate to make the strip steel head tilt up, which can effectively avoid the strip head from being stuck. At the same time, the upper and lower knife holders are combined to conveniently realize the strip steel shearing function.

[0042] 2. The upper pressure plate of the strip steel warping mechanism and the upper knife holder of the shearing mechanism of the utility model share a set of driving devices, which can complete the two functions of warping and cutting at the same workstation, effectively saving equipment layout space, reducing the number of equipment, and making the overall structure compact.

[0043] The above embodiments are only used to illustrate the design ideas and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The protection scope of the utility model is not limited to the above embodiments. Therefore, any equivalent changes or modifications made based on the principles and design ideas disclosed by the utility model are within the protection scope of the utility model.

Claims

1. A hydraulic shear with head bending function, characterized in that: It comprises a hydraulic shearing support (1), wherein the hydraulic shearing support (1) is arranged at the inlet side of the cold rolling and leveling mill, and a strip steel shearing mechanism and a strip steel warping mechanism are arranged on the side of the hydraulic shearing support (1) facing the strip steel passing line; The strip shearing mechanism comprises an upper knife frame (2) and a lower knife frame (3) respectively arranged above and below the strip passing line, the upper knife frame (2) and the lower knife frame (3) are both slidably mounted on a hydraulic shear support (1), and the upper knife frame (2) and the lower knife frame (3) are both connected to a hydraulic drive device; The strip warping mechanism comprises an upper pressing plate (4) and a lower pressing plate (5), wherein the upper pressing plate (4) is fixedly connected to the upper tool holder (2), and a punch (6) is installed on the bottom surface of the upper pressing plate (4), and the lower pressing plate (5) is arranged below the strip passing line and fixedly connected to the hydraulic shear support (1), and a concave die (7) corresponding to the punch (6) is installed on the top surface of the lower pressing plate (5).

2. The hydraulic shear with head bending function according to claim 1, characterized in that: The upper pressing plate (4) is arranged on a side of the upper tool holder (2) close to the entrance of the cold rolling mill.

3. The hydraulic shear with head bending function according to claim 1, characterized in that: The bottom surface of the upper pressing plate (4) is flush with the bottom end of the upper tool holder (2).

4. The hydraulic shear with head bending function according to claim 1, characterized in that: The top surface of the lower pressing plate (5) is flush with the lower part of the strip passing line.

5. The hydraulic shear with head bending function according to claim 1, characterized in that: The installation height of the lower tool holder (3) is lower than the installation height of the lower pressing plate (5).

6. The hydraulic shear with head bending function according to claim 1, characterized in that: The widths of the upper blade holder (2) and the lower blade holder (3) are both greater than the width of the passing strip steel.

7. The hydraulic shear with head bending function according to claim 1, characterized in that: The positions of the male die (6) and the female die (7) correspond to the center line passing through the steel strip.

8. The hydraulic shear with head bending function according to claim 1, characterized in that: The hydraulic drive device is specifically a hydraulic drive cylinder group, which is used to drive the upper tool holder (2) and the lower tool holder (3) to move vertically up and down along the side of the hydraulic shear support (1).

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