Cut-off shear for cutting high-bar-line steel bars

Abstract

The utility model discloses a cutting shear for cutting high-bar-line steel bars, which comprises a bottom plate, a mounting frame for steel billets to pass through is arranged on the bottom plate, a shearing device is arranged at an opening of the mounting frame, the shearing device comprises cut-off tools and sector gears, the cut-off tools and the sector gears are symmetrically arranged up and down, and rotating shafts are horizontally arranged on the upper side and the lower side of the mounting frame. The rotating shafts pass through two outlets of the mounting frame and are rotationally connected with the mounting frame, the ends, close to each other, of the two sector gears are in meshed connection, the ends, away from each other, of the two sector gears are fixedly connected with the upper rotating shaft and the lower rotating shaft correspondingly, and the ends, close to each other, of the two cut-off tools are sharp ends and aligned. The ends, far away from each other, of the two cut-off tools are fixedly arranged on the upper rotating shaft and the lower rotating shaft respectively, the sector gear and the cut-off tools are rotationally arranged on the installation frame through connection with the rotating shafts, and the installation frame is provided with a driving piece for driving the rotating shafts to rotate. And the steel billet shearing quality is improved.

Description

Technical Field

[0001] The utility model relates to a steel bar cutting device, in particular to a cutting shear for cutting high-bar wire steel bars. Background Art

[0002] Rebar production is mainly divided into high-strength wire and high-strength rod. The difference between high-strength rod and high-strength wire lies mainly in the radial size. The difference in their processes lies mainly in the number of times the rolling mill presses and the different collection methods after manufacturing.

[0003] During the steel rolling production process, when a downstream rolling mill fails, the shearing device will be used to cut the steel billet in an emergency. The existing steel billet cutting device usually uses a shearing shear, which is mostly a connecting rod synchronization structure. The disadvantage of this type of shearing shear is that it is difficult and time-consuming to adjust the synchronization of the two blades. The two blades often bite out of sync, resulting in an inclined and uneven cross-section of the steel billet after shearing, which is not conducive to the subsequent engagement of the rolling mill rolls. Utility Model Content

[0004] The utility model aims to provide a shear for cutting high-bar wire steel bars to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a card-cutting shear for cutting high-bar wire steel bars, comprising a bottom plate installed on a production line, a mounting frame for a steel billet to pass through is provided on the bottom plate, the steel billet passes through an opening formed by the mounting frame, the mounting frame is symmetrically provided with two openings, the mounting frame is provided with a shearing device at the opening, the shearing device comprises a cutting knife and a fan-shaped gear symmetrically arranged up and down, a rotating shaft is horizontally provided on the upper and lower sides of the mounting frame, the rotating shaft passes through two outlets of the mounting frame and forms a rotation connection with the mounting frame, the ends of the two fan-shaped gears close to each other form a meshing connection, and the ends away from each other are respectively fixedly connected to the upper and lower rotating shafts, the ends of the two cutting knives close to each other are sharp ends and are aligned with each other, the ends of the two cutting knives away from each other are fixedly arranged on the upper and lower rotating shafts, the fan gear and the cutting knife are rotatably arranged on the mounting frame through the connection with the rotating shaft, and a driving member for driving the rotating shaft to rotate is provided on the mounting frame.

[0006] Preferably, a fixing plate is provided on the side of the upper cutting knife away from the rotating shaft, and the driving member comprises a telescopic electric cylinder rotatably arranged on the top of the mounting frame, and the outer end of the output end of the telescopic electric cylinder is rotatably connected to the fixing block.

[0007] Preferably, the cutting knife comprises a mounting block and a cutting blade, and a blade groove is provided at one end of the upper and lower mounting blocks close to each other, and the cutting blade is fixedly mounted in the blade groove by bolts.

[0008] Preferably, two groups of protrusions are symmetrically provided on the top of the mounting base, and the protrusions include symmetrically arranged side panels, a mounting plate is provided above the side panels, a connecting plate inserted between the two side panels is provided at the bottom of the mounting plate, the connecting plate is rotatably provided between the two side panels via a pin shaft, and the bottom of the mounting frame is fixedly connected to the mounting plate via bolts.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] By adopting a synchronous structure of fan gears, the cutting knives on the upper and lower rotating shafts rotate synchronously, which can cut the steel billet more neatly and is beneficial to the subsequent engagement of the rolling mill; the cutting blade is detachably mounted on the mounting block by bolts, which is beneficial to daily maintenance, avoids overall disassembly and assembly, and saves maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0013] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0014] 1. Bottom plate; 2. Mounting frame; 3. Opening; 4. Cutting knife; 41. Mounting block; 42. Cutting blade; 5. Fan gear; 6. Rotating shaft; 7. Fixed plate; 8. Telescopic electric cylinder; 9. Convex connecting plate; 10. U-shaped buckle; 12. Side plate; 13. Mounting plate; 14. Connecting plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1The utility model provides a technical solution: a card-cutting shear for cutting high-bar wire steel bars, comprising a bottom plate 1 installed on a production line, a mounting frame 2 for passing a steel billet is provided on the bottom plate 1, the steel billet passes through an opening 3 formed by the mounting frame 2, the opening 3 of the mounting frame 2 is symmetrically provided with two places, the mounting frame 2 is provided with a shearing device at the opening 3, the shearing device comprises a cutting knife 4 and a sector gear 5 symmetrically arranged up and down, a rotating shaft 6 is horizontally provided on the upper and lower sides of the mounting frame 2, the rotating shaft 6 passes through two outlets of the mounting frame 2 and forms a rotation connection with the mounting frame 2, the ends of the two sector gears 5 close to each other form a meshing connection, and the ends away from each other are fixedly connected to the upper and lower rotating shafts 6 respectively, the ends of the two cutting knives 4 close to each other are sharp ends and are aligned with each other, the ends of the two cutting knives 4 away from each other are fixedly fixedly arranged on the upper and lower rotating shafts 6 respectively, the sector gear 5 and the cutting knife 4 are rotatably arranged on the mounting frame 2 through the connection with the rotating shaft 6, and the mounting frame 2 is provided with a driving member for driving the rotating shaft 6 to rotate.

[0017] Specifically, a fixed plate 7 is provided on the side of the upper cutting knife 4 away from the rotating shaft 6, and the driving member includes a telescopic electric cylinder 8 rotatably arranged on the top of the mounting frame 2, and the outer end of the output end of the telescopic electric cylinder 8 is rotatably connected to the fixed block, and a plurality of groups of convex connecting plates 9 are horizontally arranged on the top of the mounting frame 2, and a U-shaped buckle 10 is rotatably arranged between the two convex connecting plates 9, and the telescopic electric cylinder 8 is fixed in the U-shaped buckle 10, and the U-shaped buckle 10 can rotate within a certain range between the convex connecting plates 9.

[0018] Specifically, the cutting knife 4 includes a mounting block 41 and a cutting blade 42. A blade groove is provided at one end of the upper and lower mounting blocks 41 close to each other. The cutting blade 42 is fixed in the blade groove by bolts. When the blade needs maintenance, the blade can be removed and replaced by simply loosening the bolts, thereby reducing equipment maintenance time.

[0019] Specifically, two groups of protrusions are symmetrically provided on the top of the mounting base, and the protrusions include symmetrically arranged side panels 12, a mounting plate 13 is provided above the side panels 12, and a connecting plate 14 is provided at the bottom of the mounting plate 13 to be inserted between the two side panels 12. The connecting plate 14 is rotatably arranged between the two side panels 12 through a pin connection, and the bottom of the mounting frame 2 is fixedly connected to the mounting plate 13 by bolts. The mounting plate 13 can be rotated so that the upper and lower cutting knives 4 can be fixed perpendicular to the steel billet in a closed cutting state. The fixing method is that the bottom of the mounting frame 2 is fixed to the mounting plate 13 by bolts, and the top side of the mounting frame 2 is fixed to the external mounting frame 2 by bolts.

[0020] A specific application example of this embodiment is:

[0021] When the device is in use, the base is fixed by bolts, and then the mounting plate 13 is fixed to the bottom of the mounting frame 2 by bolts. After the mounting plate 13 is fixed to the bottom of the mounting frame 2, the connecting plate 14 at the bottom of the mounting plate 13 is rotatably connected to the side plates 12 on the base through the pin shaft. The rotation angle of the mounting frame 2 on the base is determined according to whether the cutting knife 4 is perpendicular to the conveying direction of the steel billet in the closed state. After the angle of the mounting frame 2 is adjusted, the bolts are used to fix it with the corresponding external frame through the bolt holes on both sides of the top of the mounting frame 2. After that, the steel billet can pass through the opening 3 of the mounting frame 2. When the downstream rolling mill fails, the telescopic electric cylinder 8 can be started, and the telescopic electric cylinder 8 is extended to drive the end of the mounting block 41 with the cutting blade 42 to rotate downward (at this time, the telescopic electric cylinder 8 on the other side is retracted). The rotation of the mounting block 41 will drive the rotating shaft 6 to rotate at the same time, and the rotation of the rotating shaft 6 will drive the upper fan gear 5 to rotate. The upper and lower fan gears 5 rotate synchronously and rotate in opposite directions, driving the side with the cutting blade 42 on the upper and lower mounting blocks 41 to rotate toward the side close to each other to cut the steel billet; it should be noted that: Figure 1 The two sets of shearing devices are in a cutting state and an opening state respectively. After the rotating shaft 6 rotates, the cutting device on one side is turned from the cutting state to the opening state, and the cutting device on the other side is turned from the opening state to the cutting state.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention 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 invention.

[0023] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that modifications may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shear for cutting high-strength steel bars, comprising a base plate (1) mounted on a production line, wherein a mounting frame (2) is provided on the base plate (1) for steel billets to pass through, and the steel billets pass through an opening (3) formed by the mounting frame (2), wherein: The mounting frame (2) has two symmetrical openings (3). The mounting frame (2) is provided with a shearing device at the opening (3). The shearing device comprises a cutting knife (4) and a sector gear (5) symmetrically arranged in an upper and lower position. A rotating shaft (6) is horizontally arranged on both upper and lower sides of the mounting frame (2). The rotating shaft (6) passes through two outlets of the mounting frame (2) and is rotatably connected to the mounting frame (2). The ends of the two sector gears (5) that are close to each other are meshed and connected, and the ends that are away from each other are respectively fixedly connected to the upper and lower rotating shafts (6). The ends of the two cutting knives (4) that are close to each other are sharp ends and are aligned with each other. The ends of the two cutting knives (4) that are away from each other are respectively fixedly arranged on the upper and lower rotating shafts (6). The sector gear (5) and the cutting knife (4) are rotatably arranged on the mounting frame (2) through connection with the rotating shaft (6). A driving member for driving the rotating shaft (6) to rotate is provided on the mounting frame (2).

2. The shears for cutting high-strength steel bars according to claim 1, characterized in that: A fixing plate (7) is provided on the side of the upper cutting knife (4) away from the rotating shaft (6), and the driving member comprises a telescopic electric cylinder (8) rotatably arranged on the top of the mounting frame (2), and the outer end of the output end of the telescopic electric cylinder (8) is rotatably connected to the fixing block.

3. The shears for cutting high-strength steel bars according to claim 1, characterized in that: The cutting knife (4) comprises a mounting block (41) and a cutting blade (42); a blade groove is provided at one end of the upper and lower mounting blocks (41) close to each other; and the cutting blade (42) is fixedly mounted in the blade groove by means of bolts.

4. The shears for cutting high-strength steel bars according to claim 1, characterized in that: Two groups of protrusions are symmetrically arranged on the top of the bottom plate (1), and the protrusions include symmetrically arranged side plates (12). A mounting plate (13) is arranged above the side plates (12), and a connecting plate (14) is arranged at the bottom of the mounting plate (13) to be inserted between the two side plates (12). The connecting plate (14) is rotatably arranged between the two side plates (12) via a pin connection, and the bottom of the mounting frame (2) is fixedly connected to the mounting plate (13) via bolts.

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