Shear blade for shearing equipment of steel rolling mill

Abstract

The utility model relates to the technical field of cutters, in particular to a shear blade for shearing equipment in a rolling mill, which comprises a cutter holder, a shear blade cutter is inserted into an inner cavity at the lower end of the cutter holder, and a turntable is rotatably mounted on the surface of the shear blade cutter; sliding blocks are slidably mounted at the opening ends of the two sides of the adjusting sliding hole correspondingly, and the two sliding blocks are symmetrically distributed. A through hole is formed in the surface of the tool apron in a penetrating mode, a clamping groove is formed in the open end of the through hole, and the sliding block and the pressing plate are located in an inner cavity of the through hole and an inner cavity of the clamping groove correspondingly and matched. The device has the beneficial effects that the rotating disc is rotationally installed on the shear blade tool, the adjusting sliding hole is formed in the middle of the rotating disc in a penetrating mode, the boss is arranged on the inner wall of the adjusting sliding hole, and the tooth block can be inserted into an inner cavity of the tooth groove to enable the sliding block and the rotating disc to be relatively fixed, so that friction force between the shear blade tool and the tool apron is increased, and rotation of the rotating disc is limited; therefore, it is ensured that the shear blade tool can be adjusted in more directions in the horizontal direction and the vertical direction, and the position is more stable after adjustment.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically a shear blade for shearing equipment in a steel rolling mill. Background Technology

[0002] As an important component of shearing equipment, the performance of the shear blade directly affects the shearing quality. When producing steel of different specifications, it is necessary to select the appropriate shear blade for shearing.

[0003] Chinese utility model patent CN220295962U discloses a steel cold shearing device. It clamps the steel to be sheared by setting a clamping plate and sets an anti-slip pad to prevent the steel from shaking during the shearing process and affecting the accuracy of the shearing. This achieves effective fixation of the steel and improves the efficiency and accuracy of steel shearing.

[0004] Currently, traditional shear blades are typically fixed to the blade holder with bolts. Some blade holders have slotted holes for blade position adjustment, but the blade holder and blade are only fixed by friction, resulting in unstable positioning and difficulty in withstanding large forces. Furthermore, the direction of the slotted holes limits the adjustable direction of the blade. Therefore, this invention proposes a shear blade for shearing equipment in steel rolling mills to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a shear blade for shearing equipment in steel rolling mills, in order to solve the problems mentioned in the background art, such as poor connection stability between the traditional shear blade and the blade holder after adjustment and limited adjustment direction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shear blade for a shearing equipment in a steel rolling mill, comprising:

[0007] A blade holder, wherein a shearing blade is inserted into the lower inner cavity of the blade holder, and a turntable is rotatably mounted on the surface of the shearing blade. An adjustment sliding hole is formed through the surface of the turntable, and a boss is fixedly provided on both sides of the inner wall of the adjustment sliding hole. The surface of the boss is provided with a toothed groove.

[0008] The two opening ends of the adjusting sliding hole are slidably mounted with sliders, and the two sliders are symmetrically distributed. A beveled groove is opened at the corner of one end face of the slider, and a tooth block that matches the tooth groove is fixed on the surface of the beveled groove. A pressure plate is fixed on the other end face of the slider.

[0009] The surface of the tool holder has a through hole, and the opening end of the through hole has a slot. The slider and the pressure plate are located in the cavity of the through hole and the slot, respectively, and are adapted to each other.

[0010] Preferably, the surface of the shearing blade is provided with a stepped hole, the inner wall of the stepped hole is provided with a protrusion and the cross-section of the stepped hole is "H" shaped, and the outer wall of the turntable is provided with an annular groove that matches the protrusion on the inner wall of the stepped hole.

[0011] Preferably, a stud is provided through the inner cavity of the turntable, and an internal thread is provided on the inner wall of one of the sliders, which is threadedly connected to the front end of the stud.

[0012] Preferably, the rear end of the stud is stepped and has an internal hexagonal groove, and the surface of the other slider has a countersunk hole that matches the stud and is rotatably sleeved with the stud.

[0013] Preferably, a retaining ring is fixedly sleeved in the middle of the stud, and the retaining ring is located between the two sliders and keeps in contact with the end face of the other slider.

[0014] Preferably, the cross-sections of the slider, pressure plate, through hole, and slot are all regular polygonal structures with an even number of sides. The slot has a circular groove at its open end for the pressure plate to rotate, and a stepped structure is formed between the through hole, slot, and circular groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a turntable mounted on a shearing blade. An adjusting slide hole is formed through the center of the turntable. A boss with a toothed groove is located on the inner wall of the adjusting slide hole. Slider blocks are slidably mounted in the inner cavities at both ends of the adjusting slide hole. A beveled groove matching the boss is located at the corner of one end face of each slider. A toothed block matching the toothed groove is fixed to the surface of the beveled groove. When the turntable rotates, the length of the adjusting slide hole can be adjusted. As the slider slides along the length of the adjusting slide hole, the relative position between the shearing blade and the blade holder can be adjusted. When the two sliders approach each other, the toothed block inserts into the toothed groove cavity, keeping the slider and the turntable relatively fixed. Simultaneously, a pressure plate on the slider surface engages with the bottom of the groove, pressing against the blade holder. This not only increases the friction between the shearing blade and the blade holder but also limits the rotation of the turntable, ensuring that the shearing blade can be adjusted in more directions, both horizontally and vertically, and that the adjusted position is more stable. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of a portion of the structure of the shear blade and blade holder of this utility model;

[0019] Figure 3 This is a half-sectional schematic diagram of the slider structure of this utility model;

[0020] Figure 4 Schematic half-section view of the turntable structure of the present utility model;

[0021] Figure 5 Schematic half-section view of the tool holder and shear blade tool structure of the present utility model.

[0022] In the figure: 1. Tool holder; 11. Through hole; 12. Card slot; 13. Circular rotating groove; 2. Shear blade tool; 3. Step hole; 4. Turntable; 41. Adjusting sliding hole; 42. Boss; 43. Tooth groove; 44. Annular groove; 5. Slide block; 51. Oblique cutting groove; 52. Tooth block; 53. Pressure plate; 54. Internal thread; 6. Stud; 61. Retaining ring. Specific embodiments

[0023] In order to clearly and completely describe the purpose, technical solution of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 5 , the present utility model provides a technical solution:

[0025] Embodiment 1, a shear blade for a shearing device in a rolling mill, comprising: a tool holder 1.

[0026] Specifically, a shear blade tool 2 is inserted into the lower inner cavity of the tool holder 1. The cross-section of the lower end of the tool holder 1 is in the shape of a "匚" with the opening facing downwards. The shear blade tool 2 can be inserted into the lower inner cavity of the tool holder 1 from bottom to top or horizontally. The turntable 4 is rotatably installed on the surface of the shear blade tool 2. The turntable 4 only rotates relative to the shear blade tool 2 and does not separate from each other. An adjusting sliding hole 41 is penetrated through the surface of the turntable 4. The adjusting sliding hole 41 is in a rectangular structure. Both inner walls of the adjusting sliding hole 41 are fixedly provided with bosses 42. The cross-section of the boss 42 is in the shape of an isosceles trapezoid. A tooth groove 43 is provided on the surface of the boss 4, and the tooth groove 43 penetrates through the boss 42 along the depth direction of the adjusting sliding hole 41. The tooth groove 43 is in a horizontal "V" shape and is located on the long side inner wall of the adjusting sliding hole 41.

[0027] Secondly, slide blocks 5 are slidably installed at both open ends of the adjusting sliding hole 41, and the two slide blocks 5 are symmetrically distributed, as Figure 2As shown, the slider 5 can slide along the length direction of the adjusting slide hole 41 to change the relative position between the two, and can also slide along the depth direction of the adjusting slide hole 41 to separate the two. A beveled groove 51 is provided at the corner of one end face of the slider 5, and a toothed block 52 that matches the toothed groove 43 is fixed on the surface of the beveled groove 51. The beveled groove 51 is provided to avoid collision between the slider 5 and the boss 42. The toothed block 52 can be inserted into the inner cavity of the toothed groove 43 to position the slider 5 as it slides along the length direction of the adjusting slide hole 41. When the two sliders 5 move away from each other, the toothed block 52 and the toothed groove 43 separate from each other. At this time, the slider 5 can slide along the length direction of the adjusting slide hole 41. Conversely, when the two sliders 5 move closer to each other, the toothed block 52 is inserted into the inner cavity of the toothed groove 43 to position the slider 5 as it slides. A pressure plate 53 is fixed on the other end face of the slider 5.

[0028] Furthermore, a through hole 11 is formed on the surface of the tool holder 1, and a slot 12 is formed at the opening end of the through hole 11. The slider 5 and the pressure plate 53 are located in the inner cavities of the through hole 11 and the slot 12, respectively, and are respectively adapted to each other. Figure 2 It can be seen that after the slider 5 is horizontally inserted into the inner cavity of the through hole 11, it can maintain a relatively fixed position with the knife holder 1. Therefore, the relative position adjustment between the slider 5 and the turntable 4 is the relative position adjustment between the shear blade 2 and the knife holder 1. After the position of the shear blade 2 is adjusted, the cooperation between the tooth block 52 and the tooth groove 43 can stably position the shear blade 2 and prevent the shear blade 2 from being displaced due to vibration.

[0029] To rotatably connect the turntable 4 to the shearing blade 2, this application further includes a stepped hole 3 penetrating through the surface of the shearing blade 2. The inner wall of the stepped hole 3 has protrusions, and the cross-section of the stepped hole 3 is "H"-shaped. An annular groove 44 is formed on the outer wall of the turntable 4 and matches the protrusions on the inner wall of the stepped hole 3. Figure 2 and Figure 4 It can be seen that the turntable 4 can only rotate on the shear blade 2 and will not separate from the shear blade 2.

[0030] To allow the slider 5 to be inserted into or removed from the adjusting slide hole 41, this application further includes a stud 6 extending through the inner cavity of the turntable 4, and an internal thread 54 formed on the inner wall of one slider 5, maintaining a threaded connection with the front end of the stud 6. Figure 2 As shown, by turning the stud 6, the operator can drive the slider 5 located at the front end of the stud 6 to move along the length of the stud 6, thereby controlling whether the slider 5 is separated from the adjusting slide hole 41.

[0031] To drive the two sliders 5 closer together or further apart, this application also features a stepped rear end of the stud 6 with an internal hexagonal groove, and another slider 5 has a countersunk hole on its surface that matches the stud 6 and is rotatably sleeved with the stud 6. Figure 1 and Figure 3 As shown, neither end of the stud 6 protrudes from the surface of the tool holder 1, which can effectively prevent collisions with external objects. In addition, when the stud 6 rotates, it can control the two sliders 5 to move closer or further apart.

[0032] To ensure stability between the slider 5 and the turntable 4, this application also includes a retaining ring 61 fixedly sleeved in the middle of the stud 6. The retaining ring 61 is located between the two sliders 5 and maintains contact with the end face of the other slider 5. Figure 3 and Figure 5 As shown, the retaining ring 61 is located exactly on the center surface of the adjusting slide hole 41. When the two sliders 5 approach each other, the two sets of toothed blocks 52 can be inserted from the openings on both sides of the toothed groove 43 respectively, and the insertion depth is consistent. Therefore, the two sliders 5 and the turntable 4 can maintain good relative stability.

[0033] To control the rotatable angle of the turntable 4, the cross-sections of the slider 5, pressure plate 53, through hole 11, and slot 12 in this application are all regular polygonal structures with an even number of sides, such as... Figure 2 It can be seen that for slider 5 to be inserted into the inner cavity of adjusting slide hole 41, it must have two symmetrical sides. Therefore, the number of sides of slider 5 cannot be odd. Depending on the number of sides, the adjustable direction between shear blade 2 and blade holder 1 is different, as follows: ① Figure 2As shown, when the slider 5, pressure plate 53, through hole 11, and slot 12 are all regular quadrilateral structures, the slider 5 can rotate in multiples of 90 degrees to re-engage with the through hole 11. Therefore, the turntable 4 can rotate in multiples of 90 degrees to cooperate with the slider 5. In other words, this device can adjust the relative position between the shear blade 2 and the blade holder 1 in the vertical or horizontal direction according to actual needs; ② When the slider 5, pressure plate 53, through hole 11, and slot 12 are all regular hexagonal structures, the slider 5 can rotate in multiples of 60 degrees to re-engage with the through hole 11. Therefore, the turntable 4 can also rotate in multiples of 60 degrees to cooperate with the slider 5. In other words, this device can adjust the relative position between the shear blade 2 and the blade holder 1 in the horizontal tilt direction in multiples of 60 degrees according to actual needs; ③ When When the slider 5, pressure plate 53, through hole 11, and slot 12 are all regular N-gon structures, the slider 5 can rotate by multiples of 360 degrees / N to re-engage with the through hole 11. Therefore, the turntable 4 can also rotate by multiples of 360 degrees / N to cooperate with the slider 5. In other words, this device can adjust the relative position between the shear blade 2 and the blade holder 1 in a horizontal tilt direction of multiples of 360 degrees / N according to actual needs. However, as the number of sides of the slider 5, pressure plate 53, through hole 11, and slot 12 increases, the regular polygon structure will gradually approach a circle, which is not conducive to positioning relative rotation. Moreover, the length of each side will gradually decrease, which is not conducive to the cooperation between the slider 5 and the turntable 4. Therefore, it is best to set the cross-section of the slider 5, pressure plate 53, through hole 11, and slot 12 to be a regular quadrilateral or a regular hexagon.

[0034] In addition, the opening end of the slot 12 is provided with a circular rotating groove 13 for the pressure plate 53 to rotate. A stepped structure is formed between the through hole 11, the slot 12 and the circular rotating groove 13. The pressure plate 53 can rotate in the inner cavity of the circular rotating groove 13 without being obstructed. The arrangement of the through hole 11, the slot 12 and the circular rotating groove 13 ensures that the end faces of the pressure plate 53 and the stud 6 of this device will not protrude from the surface of the tool holder 1, thereby ensuring the flatness of the surface of the tool holder 1 and preventing collision with external objects.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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 blade for a shear installation at a steel rolling mill, characterized in that: Include: The lower end cavity of the knife seat (1) is inserted with a cutting blade tool (2), the surface of the cutting blade tool (2) is rotatably installed with a rotating disc (4), the surface of the rotating disc (4) is provided with an adjusting sliding hole (41) penetratingly, the inner wall of both sides of the adjusting sliding hole (41) is fixedly provided with a boss (42), and the surface of the boss (42) is provided with a tooth groove (43). The opening end of both sides of the adjusting sliding hole (41) is slidably installed with a sliding block (5), and the two sliding blocks (5) are symmetrically distributed, the end face corner of the sliding block (5) is provided with an inclined slot (51), and the surface of the inclined slot (51) is fixedly provided with a tooth block (52) matched with the tooth groove (43), and the other end face of the sliding block (5) is fixedly provided with a pressing plate (53). The surface of the knife seat (1) is provided with a through hole (11) penetratingly, and the opening end of the through hole (11) is provided with a clamping groove (12), and the sliding block (5) and the pressing plate (53) are located in the inner cavities of the through hole (11) and the clamping groove (12) respectively and are matched respectively.

2. A shear blade for a shearing apparatus of a steel rolling mill according to claim 1, characterized in that: The surface of the cutting blade tool (2) is provided with a stepped hole (3) penetratingly, the inner wall of the stepped hole (3) is provided with a protrusion, and the cross section of the stepped hole (3) is in "H" shape, the outer side wall of the rotating disc (4) is provided with an annular groove (44) and is matched with the protrusion on the inner wall of the stepped hole (3).

3. A shear blade for a shearing apparatus of a steel rolling mill according to claim 1, characterized in that: The inner cavity of the rotating disc (4) is provided with a stud (6) penetratingly, the inner wall of one of the sliding blocks (5) is provided with an internal thread (54) and is threadedly connected with the front end of the stud (6).

4. A shear blade for a shearing apparatus of a steel rolling mill according to claim 3, wherein: The rear end of the stud (6) is stepped and provided with an internal hexagonal groove, the surface of the other sliding block (5) is provided with a countersunk hole matched with the stud (6) and is rotatably sleeved with the stud (6).

5. A shear blade for a shearing apparatus of a steel rolling mill as defined in claim 3, wherein: The middle part of the stud (6) is fixedly sleeved with a retaining ring (61), the retaining ring (61) is located between the two sliding blocks (5) and is matched with the end face of the other sliding block (5).

6. A shear blade for a shearing apparatus of a steel rolling mill as defined in claim 1, characterized in that: The cross sections of the sliding block (5), the pressing plate (53), the through hole (11) and the clamping groove (12) are all regular polygonal structures, and the number of sides is the same even number, the opening end of the clamping groove (12) is provided with a circular rotating groove (13) for the rotation of the pressing plate (53), and the through hole (11), the clamping groove (12) and the circular rotating groove (13) form a stepped structure.

Images