Synchronous feeding flying shear mechanism

Abstract

The present invention discloses a synchronous feeding type flying shear mechanism, which belongs to the technical field of flying shear machines and is designed to solve the problem that the existing flying shear mechanism is difficult to adapt to the high-speed processing of steel bars. The synchronous feeding type flying shear mechanism of the present invention comprises a flying shear assembly and a swing assembly, and the flying shear assembly comprises a first turntable and a second turntable, a first shearing knife is arranged on the first turntable, and a second shearing knife is arranged on the second turntable, and the first shearing knife and the second shearing knife can cut the steel bars when the first turntable and the second turntable are rotated to the set position; the swing assembly comprises a support for supporting the steel bars, and the support is configured to have a steel bar moving state and a steel bar shearing state, and the support can swing between the steel bar moving state and the steel bar shearing state. The first turntable and the second turntable of the synchronous feeding type flying shear mechanism of the present invention can always rotate at a set speed, can realize high-speed fixed-length shearing of steel bars with high precision, and have high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of flying shears, in particular to a synchronous feeding type flying shear mechanism. Background Art

[0002] In various fields where steel bars are used, such as construction, it is usually necessary to cut longer steel bars into shorter ones as needed. In order to improve the shearing efficiency, a flying shear mechanism is usually used to directly shear the moving steel bars, and the steel bars do not need to stop moving during the shearing process. Specifically, the tachometer wheel rotates with the movement of the steel bars, and sends out counting pulses during the rotation of the tachometer wheel. When the number of counting pulses reaches the set value, the steel bar has moved the set length; the shear disc is started and the shear blade reaches the steel bar position. The shear blade, whose linear speed is consistent with the running speed of the steel bar, can achieve fixed-length shearing of the steel bar.

[0003] At present, the most commonly used flying shear mechanism is the stop-and-reduction flying shear. After the last shearing is completed, the upper and lower turntables with shearing tools need to stop at a fixed position as soon as possible; after the steel bar moves a set distance, the two turntables rotate about their respective axes for about one circle, and the upper and lower shearing tools form a scissor structure, which cuts the steel bar into two pieces.

[0004] In order to make the length of the steel bar cut meet the set value, the linear speed of the shearing tool is required to be basically consistent with the speed of the steel bar movement. In the process of the turntable from stopping to high-speed rotation, it is necessary to overcome inertia, which makes it difficult for the turntable to reach a high speed in a short time. Therefore, the flying shear mechanism can only be applied to production lines with low steel bar movement speeds, and the production efficiency is low; after completing a shear, the turntable needs to be stopped, but due to the existence of rotational inertia, it is difficult for the turntable to stop quickly and it is difficult to stop accurately at a fixed position. Either the speed of the turntable is reduced in order to stop quickly, or the position where the turntable stops is inaccurate, resulting in an error in the length of the next steel bar cut. In addition, when the flying shear mechanism is continuously running, the length of the steel bar cut each time is consistent, and the length of each section of steel bar cannot be changed according to specific needs. Summary of the invention

[0005] The purpose of the present invention is to provide a synchronous feeding type flying shear mechanism, which can realize high-speed fixed-length shearing of steel bars with high precision.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A synchronous feeding flying shear mechanism comprises a flying shear assembly and a swing assembly, wherein the flying shear assembly comprises a first turntable and a second turntable, wherein a first shearing knife is arranged on the first turntable, and a second shearing knife is arranged on the second turntable, wherein the first shearing knife and the second shearing knife can cut steel bars when the first turntable and the second turntable are both rotated to set positions; the swing assembly comprises a support member for supporting the steel bars, wherein the support member is configured to have a steel bar moving state and a steel bar shearing state, and the support member can swing between the steel bar moving state and the steel bar shearing state; when the support member is in the steel bar moving state, the steel bar is outside the first shearing knife and the second shearing knife, and when the support member is in the steel bar shearing state, the steel bar is located between the first shearing knife and the second shearing knife.

[0008] In particular, the swing assembly further comprises a base and a driving member for driving the support member to swing, wherein the driving member is connected to the support member; the support member is arranged on the base, and the support member and the base can rotate synchronously.

[0009] In particular, the swing assembly further comprises a base bracket, the base is hinged on the base bracket, and the support member and the base can synchronously rotate around a hinge axis between the base and the base bracket.

[0010] In particular, the base is connected to one end of the support member, and the driving member is connected to the other end of the support member.

[0011] In particular, the driving member is closer to the flying shear assembly than to the base.

[0012] In particular, the driving member is a hydraulic pump, and the output shaft of the hydraulic pump is hinged on the supporting member.

[0013] In particular, the flying shear assembly further comprises a flying shear assembly mounting seat, the first turntable and the second turntable are respectively arranged on the flying shear assembly mounting seat, and the pump body of the hydraulic pump is connected to the flying shear assembly mounting seat.

[0014] In particular, the support member is a conduit, the diameter of the conduit is greater than or equal to the diameter of the steel bar, and the steel bar is inserted into the conduit.

[0015] In particular, the swing assembly further comprises a swing bearing plate, and the support member rests on the swing bearing plate and can slide on the swing bearing plate.

[0016] In particular, the swing assembly further comprises a limiting guide wheel, a groove is formed on the outer periphery of the limiting guide wheel, and the steel bar is located in the groove.

[0017] The support member of the synchronous feeding flying shear mechanism of the present invention can swing between a steel bar moving state and a steel bar shearing state. The steel bar is fed between the first shearing knife and the second shearing knife only when the steel bar needs to be sheared. At other times, the steel bar is away from the first shearing knife and the second shearing knife. The movement of the steel bar does not affect the normal rotation of the first turntable and the second turntable, so the first turntable and the second turntable can always rotate at a set speed without stopping after the last shearing and starting to rotate again when the next shearing is about to come. This solves the problem that the shearing knife of the existing flying shear machine needs to be frequently started and stopped, resulting in the inability to be suitable for high-speed processing of steel bars. The method is easy to use, has a wider range of applications, can achieve high-speed fixed-length shearing of steel bars with high precision, and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a synchronous feeding flying shear mechanism provided in a specific embodiment of the present invention;

[0019] Figure 2 It is a top view of the support member of the synchronous feeding type flying shear mechanism provided by the specific embodiment of the present invention when the steel bar is in the moving state;

[0020] Figure 3 It is a top view of the supporting member of the synchronous feeding flying shear mechanism provided by the specific embodiment of the present invention when it is in the steel bar shearing state.

[0021] In the figure:

[0022] 3. Steel bars; 4. Support members; 5. Base; 6. Base bracket; 7. Driving member; 8. Swinging bearing plate; 9. Limiting guide wheel; 10. Flying shear assembly mounting seat; 11. First turntable; 12. Second turntable; 21. First shearing knife; 22. Second shearing knife. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] This embodiment discloses a synchronous feeding type flying shear mechanism. Figure 1As shown, the synchronous feeding type flying shear mechanism includes a flying shear assembly and a swing assembly. The flying shear assembly includes a first turntable 11 and a second turntable 12. The first turntable 11 is provided with a first shearing knife 21, and the second turntable 12 is provided with a second shearing knife 22. The first turntable 11 and the second turntable 12 can rotate around their respective centers respectively. When the first turntable 11 and the second turntable 12 are rotated to the set position, the first shearing knife 21 and the second shearing knife 22 are aligned to form a scissor-like structure. If there is a steel bar 3 between the first shearing knife 21 and the second shearing knife 22 at this time, the first shearing knife 21 and the second shearing knife 22 can work together to cut off the steel bar 3. In order to ensure that the cut length of the steel bar 3 is accurate and controllable, the linear speed of the rotation of the first turntable 11 and the second turntable 12 is equal to or slightly faster than the moving speed of the steel bar 3, so that continuous flying shearing can be achieved.

[0025] The swing assembly includes a support member 4 for supporting the steel bar 3. The support member 4 is configured to have a steel bar moving state and a steel bar shearing state, and the support member 4 can swing between the steel bar moving state and the steel bar shearing state.

[0026] like Figure 2 As shown in FIG. 1 , when the support member 4 is in the steel bar moving state, the steel bar 3 is outside the first shearing knife 21 and the second shearing knife 22, and the steel bar 3 can move normally. The speed measuring wheel rotates with the movement of the steel bar 3 and sends out counting pulses. When the number of pulses reaches the set number of pulses, it indicates that the moving distance of the steel bar 3 has met the requirements, such as Figure 3 As shown, the support member 4 swings to the steel bar shearing state, and the steel bar 3 is located between the first shearing knife 21 and the second shearing knife 22. The first shearing knife 21 and the second shearing knife 22 bite to cut the steel bar 3. The support member 4 swings again and returns to the state shown in FIG. Figure 2 In the shown steel bar moving state, the steel bar 3 continues to move on the support 4, waiting for the next shearing.

[0027] The support member 4 of the synchronous feeding flying shear mechanism can swing between a steel bar moving state and a steel bar shearing state. The steel bar 3 will only be fed between the first shearing knife 21 and the second shearing knife 22 (steel bar shearing state) after the steel bar 3 has moved a set distance. At other times, the steel bar 3 is away from the first shearing knife 21 and the second shearing knife 22. The movement of the steel bar 3 does not affect the normal rotation of the first turntable 11 and the second turntable 12, so the first turntable 11 and the second turntable 12 can always rotate at a set speed without stopping after the last shearing and starting to rotate again when the next shearing is about to come. As long as the driving device can provide sufficient rotation speed, the first turntable 11 and the second turntable 12 can theoretically achieve any rotation speed, thereby adapting to steel bars 3 of various moving speeds, solving the problem that the shearing tools of the existing flying shears need to be frequently started and stopped, resulting in the inability to be applied to high-speed steel bar processing. The invention is easy to use, has a wider range of applications, can achieve high-speed fixed-length shearing of the steel bar 3 with high precision, and has high production efficiency.

[0028] The specific method of realizing the swing of the support member 4 is not limited, as long as the support member 4 can drive the steel bar 3 to switch between the steel bar moving state and the steel bar shearing state. Preferably, the swing assembly includes a support member 4, a base 5 and a driving member 7 for driving the support member 4 to swing. The driving member 7 is connected to the support member 4 to provide a driving force for the swing of the support member 4. The support member 4 is arranged on the base 5, and the support member 4 and the base 5 can rotate synchronously, and the base 5 provides a fulcrum for the swing of the support member 4.

[0029] In order to make the base 5 rotate more smoothly, the swing assembly preferably further includes a base bracket 6, and the base 5 is hinged on the base bracket 6. The base bracket 6 is fixed on a mounting base surface (such as the ground), and as the driving member 7 applies a pulling force or a pushing force to the support member 4, the support member 4 and the base 5 can synchronously rotate around the hinge axis of the base 5 and the base bracket 6, thereby realizing the swing of the support member 4.

[0030] In order to more accurately control the swing position of the support member 4 and save more effort, the base 5 is connected to one end of the support member 4, and the driving member 7 is connected to the other end of the support member 4. The distance between the driving member 7 and the base 5 is relatively far, so the driving member 7 can overcome the inertia force of the support member 4 (from static to starting to move, or from moving to static) with less force, and the support member 4 can start and stop more smoothly; in addition, the driving of the driving member 7 will not cause the support member 4 to swing greatly instantly, and will not cause the support member 4 to be located in an area outside the steel bar moving state and the steel bar shearing state, so as to prevent the steel bar 3 from hitting other parts of the flying shear mechanism.

[0031] As long as one of the base 5 and the driving member 7 is closer to the flying shear assembly and the other is farther from the flying shear assembly, the beneficial effects of accurate position control and labor saving mentioned in the previous paragraph can be achieved. Preferably, relative to the base 5, the driving member 7 is closer to the flying shear assembly, and the spatial layout of the various components of the flying shear mechanism is more reasonable.

[0032] Based on the above structure, the driving member 7 is preferably a hydraulic pump, the output shaft of the hydraulic pump is hinged on the support member 4, and the hydraulic pump can provide a push-pull force perpendicular to its own extension direction to the support member 4, so that the support member 4 can swing with the base 5 as a fulcrum.

[0033] The flying shear assembly preferably includes a flying shear assembly mounting seat 10, and the first rotating disk 11 and the second rotating disk 12 are respectively mounted on the flying shear assembly mounting seat 10 through a rotating shaft, and the first rotating disk 11 and the second rotating disk 12 can rotate around the rotating shaft respectively. The pump body of the hydraulic pump is also arranged on the flying shear assembly mounting seat 10, so that the output shaft movement of the hydraulic pump is more stable.

[0034] On the basis of the above structure, the support member 4 is preferably a conduit (hollow tubular structure), the diameter of which is greater than or equal to the diameter of the steel bar 3, and the steel bar 3 is inserted into the conduit and can move along the conduit. The conduit can limit the steel bar 3, preventing the steel bar 3 from shaking significantly during the movement, so that the steel bar 3 can be accurately sent between the first shearing knife 21 and the second shearing knife 22, and the length of the cut steel bar 3 is more accurate.

[0035] On the basis of the above structure, the swing assembly further includes a swing bearing plate 8, on which the support member 4 is placed and can slide. That is, the base 5 and the swing bearing plate 8 respectively support the support member 4 from both ends, so that the support member 4 is always kept on the same horizontal plane; the swing bearing plate 8 only supports the support member 4 in the vertical direction, but does not limit the swing of the support member 4, and does not affect the normal movement and shearing of the steel bar 3.

[0036] The swing bearing plate 8 is preferably mounted on the flying shear assembly mounting seat 10, and the swing bearing plate 8 is closer to the first rotating disk 11 and the second rotating disk 12 relative to the driving member 7. That is, the base 5 and the swing bearing plate 8 are respectively located on both sides of the driving member 7, which can prevent the supporting member 4 from moving in the vertical direction when the driving member 7 pushes and pulls the supporting member 4.

[0037] After the steel bar 3 has been sheared, it has completely left the flying shear mechanism after passing through the support 4. In order to prevent the steel bar 3 from losing control too quickly, the swing assembly preferably includes a limiting guide wheel 9, and a groove is formed on the outer periphery of the limiting guide wheel 9, and the steel bar 3 is located in the groove. The limiting guide wheel 9 is located on the outer side of the end of the support 4. When the steel bar 3 passes through the support 4, the limiting guide wheel 9 can ensure that the steel bar 3 moves along the original route within a certain distance, which is more convenient for the subsequent process to receive the steel bar 3.

[0038] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A synchronous feeding flying shear mechanism, characterized in that: The invention comprises a flying shear assembly and a swing assembly, wherein the flying shear assembly comprises a first rotating disk (11) and a second rotating disk (12), wherein a first shearing knife (21) is arranged on the first rotating disk (11), and a second shearing knife (22) is arranged on the second rotating disk (12), and when the first rotating disk (11) and the second rotating disk (12) are both rotated to a set position, the first shearing knife (21) and the second shearing knife (22) can cut the steel bar (3); the swing assembly comprises a support member (4) for supporting the steel bar (3), wherein the support member (4) is configured to have a steel bar moving state and a steel bar shearing state, and the support member (4) can swing between the steel bar moving state and the steel bar shearing state; when the support member (4) is in the steel bar moving state , the steel bar (3) is outside the first shearing knife (21) and the second shearing knife (22); when the support member (4) is in the steel bar shearing state, the steel bar (3) is located between the first shearing knife (21) and the second shearing knife (22); when the steel bar (3) needs to be sheared, the steel bar (3) is sent between the first shearing knife (21) and the second shearing knife (22); at other times, the steel bar (3) is away from the first shearing knife (21) and the second shearing knife (22); the movement of the steel bar (3) does not affect the normal rotation of the first rotating disk (11) and the second rotating disk (12); the first rotating disk (11) and the second rotating disk (12) always rotate at a set speed, and there is no need to stop after the last shearing and start rotating again when the next shearing is about to come; The support member (4) is a conduit, the diameter of the conduit is greater than or equal to the diameter of the steel bar (3), and the steel bar (3) is inserted into the conduit; The swing assembly further comprises a limiting guide wheel (9), the outer circumference of the limiting guide wheel (9) forming a groove, and the steel bar (3) is located in the groove.

2. The synchronous feeding flying shear mechanism according to claim 1 is characterized in that: The swing assembly further comprises a base (5) and a driving member (7) for driving the support member (4) to swing, wherein the driving member (7) is connected to the support member (4); the support member (4) is arranged on the base (5), and the support member (4) and the base (5) can rotate synchronously.

3. The synchronous feeding flying shear mechanism according to claim 2 is characterized in that: The swing assembly further comprises a base bracket (6), the base (5) being hinged on the base bracket (6), and the support member (4) and the base (5) being capable of synchronously rotating around a hinge axis between the base (5) and the base bracket (6).

4. The synchronous feeding flying shear mechanism according to claim 2 is characterized in that: The base (5) is connected to one end of the support member (4), and the driving member (7) is connected to the other end of the support member (4).

5. The synchronous feeding flying shear mechanism according to claim 2 is characterized in that: Relative to the base (5), the driving member (7) is closer to the flying shear assembly.

6. The synchronous feeding flying shear mechanism according to claim 2 is characterized in that: The driving member (7) is a hydraulic pump, and the output shaft of the hydraulic pump is hinged on the supporting member (4).

7. The synchronous feeding flying shear mechanism according to claim 6 is characterized in that: The flying shear assembly further comprises a flying shear assembly mounting seat (10), the first rotating disk (11) and the second rotating disk (12) are respectively arranged on the flying shear assembly mounting seat (10), and a pump body of the hydraulic pump is connected to the flying shear assembly mounting seat (10).

8. The synchronous feeding flying shear mechanism according to any one of claims 1 to 7, characterized in that: The swing assembly further comprises a swing bearing plate (8), and the support member (4) rests on the swing bearing plate (8) and is capable of sliding on the swing bearing plate (8).

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