Pedal type steel belt shearing device

Abstract

The utility model discloses a pedal type steel belt shearing device, which relates to the field of pedal shearing and comprises two fixing plates, the two fixing plates are connected with an upper shearing knife through a pedal mechanism, a connecting table is fixedly connected between the two fixing plates, and the back end of the connecting table is fixedly connected with a lower shearing knife. The upper shearing knife and the lower shearing knife are matched to be used for shearing a steel belt, an auxiliary mechanism is installed on the connecting table, and the auxiliary mechanism comprises a limiting unit and a pressing unit. The limiting unit is used for limiting the steel strips with different widths, so that the to-be-sheared steel strip moves horizontally; and the pressing unit is used for pressing the moved steel belt, so that the upper shear knife can shear the steel belt conveniently. By arranging the auxiliary mechanism, the steel belt can be limited in the center position, and the steel belt is effectively flattened during cutting, so that the phenomena of edge curling and unevenness of a notch during cutting are avoided.

Description

Technical Field

[0001] The utility model relates to the field of pedal shearing, in particular to a pedal type steel belt shearing device. Background Technique

[0002] For a foot-operated shearing device, when cutting a steel belt, it is necessary to pay attention to whether the cut of the steel belt is horizontal and whether there is a curling phenomenon.

[0003] The reason for the above is due to the internal stress of the steel belt. When shearing, the steel belt is in a bent state and is not flat. Therefore, when cutting, great attention needs to be paid. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pedal type steel belt shearing device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pedal type steel belt shearing device, including two fixing plates, the two fixing plates are connected with an upper shearing knife through a foot-operated mechanism, a connecting platform is fixedly connected between the two fixing plates, a lower shearing knife is fixedly connected to the back end of the connecting platform, the upper shearing knife and the lower shearing knife cooperate to shear the steel belt, and an auxiliary mechanism is installed on the connecting platform, and the auxiliary mechanism includes a limiting unit and a pressing unit;

[0006] The limiting unit is used to limit steel belts with different widths, so that the steel belt to be sheared moves horizontally;

[0007] The pressing unit is used to press the moved steel belt to facilitate the upper shearing knife to shear the steel belt.

[0008] As a further scheme of the utility model: The limiting unit includes a forward and reverse motor fixedly installed on the outer wall of one of the fixing plates, a chute is opened at the top of the connecting platform, a bidirectional lead screw is rotatably installed at both ends of the inner wall of the chute, a limiting plate is threadedly connected to the outer wall of the bidirectional lead screw, the limiting plate extends from the inner wall of the chute to above the limiting plate, and a limiting roller is rotatably installed on the inner wall of the limiting plate;

[0009] The output shaft of the forward and reverse motor penetrates to the inner wall of the chute and is coaxially connected to one end of the bidirectional lead screw.

[0010] As a further solution of the utility model: The pressing unit includes a convex shaft rotatably installed between the two fixing plates. The convex shaft is located above the connecting platform. A handle is fixedly connected to the outer wall of the straight rod in the middle of the convex shaft. A strip-shaped plate is arranged below the convex shaft. A limiting rod extending downward is integrally formed at the bottom end of the strip-shaped plate. The limiting rod penetrates below the connecting platform. A protruding part is formed at the bottom end of the limiting rod. A second spring is fixedly connected between the top of the protruding part and the bottom end of the connecting platform.

[0011] As a further solution of the utility model: The pressing unit further includes a sleeve fixedly connected to the bottom end of the strip-shaped plate. A third spring is fixedly connected to the inner wall of the sleeve. A movable rod is slidably connected to the inner wall of the sleeve. The top of the movable rod is connected to the bottom end of the third spring. The bottom end of the movable rod penetrates below the sleeve. A pressing plate is fixedly installed at the bottom end of the movable rod.

[0012] As a further solution of the utility model: The foot-operated mechanism includes a swing arm rotatably installed below the inner sides of the two fixing plates. The swing arm is rotatably connected to the fixing plate through a rotating shaft. A foot pedal is fixedly installed at the other end of the swing arm. A synchronizing rod is fixedly installed between the two swing arms.

[0013] As a further solution of the utility model: The foot-operated mechanism further includes a limiting groove formed at the top end of the fixing plate and recessed downward. A first spring is fixedly connected to the bottom end of the inner wall of the limiting groove. The top of the first spring is connected to a moving block slidably connected to the inner wall of the limiting groove. A cross plate is fixedly installed between the two moving blocks. A protruding shaft is formed at one end of the cross plate. A limiting circular plate is integrally formed on the outer wall of the protruding shaft. The protruding shaft cooperates with a nut and the limiting circular plate to fixedly install the upper cutting knife.

[0014] As a further solution of the utility model: Fixing shafts protruding inward are integrally formed at the ends of the two moving blocks and the two swing arms close to each other. A connecting rod is rotatably installed on the outer walls of the two vertically symmetrical fixing shafts.

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

[0016] 1. By setting the auxiliary mechanism, the steel strip can be restricted to the central position and effectively flattened during cutting, avoiding the phenomena of curling and uneven cut edges during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model;

[0018] Figure 2Another perspective structural schematic diagram of the present utility model;

[0019] Figure 3 Internal structural schematic diagram of the present utility model;

[0020] Figure 4 Another perspective structural schematic diagram of the internal structure of the present utility model;

[0021] Figure 5 For the present utility model Figure 4 Partial enlarged view of part A;

[0022] Figure 6 Installation schematic diagram of the pressing block of the present utility model.

[0023] In the figure: 1, fixed plate; 2, forward and reverse motor; 3, connecting platform; 4, sliding groove; 5, rotating shaft; 6, swing arm; 7, foot pedal; 8, synchronizing rod; 9, connecting rod; 10, moving block; 11, limiting groove; 12, cross plate; 13, upper shearing knife; 14, convex shaft; 15, straight rod; 16, handle; 17, limiting plate; 18, limiting roller; 19, sleeve; 20, strip plate; 21, lower shearing knife; 22, limiting circular plate; 23, first spring; 24, fixed shaft; 25, limiting rod; 26, second spring; 27, bidirectional lead screw; 28, third spring; 29, movable rod; 30, pressing plate. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 6 , in the embodiment of the present utility model, a pedal type steel belt shearing device includes two fixed plates 1. The two fixed plates 1 are connected with an upper shearing knife 13 through a foot pedal mechanism. A connecting platform 3 is fixedly connected between the two fixed plates 1. A lower shearing knife 21 is fixedly connected to the back end of the connecting platform 3. The upper shearing knife 13 and the lower shearing knife 21 cooperate to shear the steel belt. An auxiliary mechanism is installed on the connecting platform 3. The auxiliary mechanism includes a limiting unit and a pressing unit. The limiting unit is used to limit steel belts with different widths, so that the steel belt to be sheared moves horizontally. The pressing unit is used to press the moved steel belt, facilitating the upper shearing knife 13 to shear the steel belt.

[0026] In this embodiment: First, one end of the steel strip is placed on the top of the connecting table 3, and then the two sides of the steel strip are limited by the limiting unit. After the steel strip moves to a certain length, the top of the steel strip is pressed by the pressing unit. Then, by stepping on the foot pedal mechanism, the large mechanism drives the upper shear blade 13 to cut the pressed steel strip, avoiding the problems of shear deviation and force-induced movement caused when the steel strip is cut.

[0027] Please refer specifically to Figure 1 and Figure 5 , the limiting unit includes a forward and reverse motor 2 fixedly installed on the outer wall of a fixed plate 1. A chute 4 is opened at the top of the connecting table 3. Both ends of the inner wall of the chute 4 are rotatably installed with a bidirectional lead screw 27. A limiting plate 17 is threadedly connected to the outer wall of the bidirectional lead screw 27. The limiting plate 17 extends from the inner wall of the chute 4 to above the limiting plate 17. A limiting roller 18 is rotatably installed on the inner wall of the limiting plate 17; the output shaft of the forward and reverse motor 2 penetrates to the inner wall of the chute 4 and is coaxially connected to one end of the bidirectional lead screw 27.

[0028] In this embodiment: By starting the forward and reverse motor 2, the forward and reverse motor 2 drives the bidirectional lead screw 27 to rotate. Since positive threads and reverse threads are respectively formed at both ends of the outer wall of the bidirectional lead screw 27, and the two limiting plates 17 located in the inner wall of the chute 4 have positive threads and reverse threads, when the bidirectional lead screw 27 rotates, the two limiting plates 17 move towards or away from each other. The moving limiting plate 17 drives the limiting roller 18 to move synchronously until the two groups of limiting rollers 18 clamp the two sides of the steel strip, and the steel strip can be restricted to the central position.

[0029] Please refer specifically to Figure 1 , Figure 5 and Figure 6 , the pressing unit includes a convex shaft 14 rotatably installed between the two fixed plates 1. The convex shaft 14 is located above the connecting table 3. A handle 16 is fixedly connected to the outer wall of the straight rod 15 in the middle of the convex shaft 14. A strip-shaped plate 20 is arranged below the convex shaft 14. A limiting rod 25 extending downward is integrally formed at the bottom end of the strip-shaped plate 20. The limiting rod 25 penetrates to the lower part of the connecting table 3. A protruding part is formed at the bottom end of the limiting rod 25. A second spring 26 is fixedly connected between the top of the protruding part and the bottom end of the connecting table 3. The pressing unit further includes a sleeve 19 fixedly connected to the bottom end of the strip-shaped plate 20. A third spring 28 is fixedly connected to the inner wall of the sleeve 19. A movable rod 29 is slidably connected to the inner wall of the sleeve 19. The top of the movable rod 29 is connected to the bottom end of the third spring 28. The bottom end of the movable rod 29 penetrates to the lower part of the sleeve 19. A pressing plate 30 is fixedly installed at the bottom end of the movable rod 29.

[0030] In this embodiment: After the steel strip moves a preset length and before shearing, by pulling the handle 16 downward, the handle 16 drives the convex shaft 14 to rotate downward through the straight rod 15. When the convex shaft 14 rotates downward, the strip plate 20 moves downward. The strip plate 20 drives the limit rod 25 to move downward. When the limit rod 25 moves downward, the second spring 26 is stretched. At the same time, the strip plate 20 drives the sleeve 19 to move downward until the pressing plate 30 contacts the top of the steel strip. Then, continue to rotate the handle 16 until the handle 16 rotates 90 degrees. At this time, the convex shaft 14 rotates to the vertical state. During this process, the third spring 28 is compressed, and the pressing plate 30 effectively presses the top of the steel strip. Then, the steel strip can be cut.

[0031] Please refer particularly to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The foot pedal mechanism includes a swing arm 6 rotatably installed below the inner sides of two fixed plates 1. The swing arm 6 is rotatably connected to the fixed plate 1 through a rotating shaft 5. The other end of the swing arm 6 is fixedly installed with a foot pedal 7. A synchronizing rod 8 is fixedly installed between the two swing arms 6. The foot pedal mechanism further includes a limiting groove 11 opened at the top of the fixed plate 1 and recessed downward. The bottom end of the inner wall of the limiting groove 11 is fixedly connected with a first spring 23. The top of the first spring 23 is connected with a moving block 10 slidably connected to the inner wall of the limiting groove 11. A cross plate 12 is fixedly installed between the two moving blocks 10. One end of the cross plate 12 is formed with a protruding shaft. The outer wall of the protruding shaft is integrally formed with a limiting circular plate 22. The protruding shaft is fixedly installed with the upper shearing knife 13 in cooperation with a nut and the limiting circular plate 22. The two moving blocks 10 and the mutually close ends of the two swing arms 6 are integrally formed with inwardly protruding fixed shafts 24. The outer walls of the two vertically symmetrical fixed shafts 24 are rotatably installed with a connecting rod 9.

[0032] In this embodiment: By stepping on the foot pedal 7, the foot pedal 7 drives the swing arm 6 to rotate downward with the rotating shaft 5 as the center. One swing arm 6 drives the other swing arm 6 to rotate downward synchronously through the synchronizing rod 8. At the same time, the swing arm 6 pulls the bottom end of the connecting rod 9 downward, and the top end of the connecting rod 9 pulls the moving block 10 to move downward along the limiting groove 11. At this time, the first spring 23 is compressed. During this process, the two ends of the connecting rod 9 rotate with the fixed shaft 24. The two moving blocks 10 drive the cross plate 12 to move downward, and the cross plate 12 pulls the upper shearing knife 13 to move downward to cooperate with the lower shearing knife 21 to cut the steel strip smoothly.

[0033] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pedal-type steel strip shearing device, comprising two fixed plates (1), wherein the two fixed plates (1) are connected to an upper shearing knife (13) via a pedal mechanism, characterized in that: A connecting platform (3) is fixedly connected between the two fixing plates (1), a lower shearing knife (21) is fixedly connected to the back end of the connecting platform (3), the upper shearing knife (13) cooperates with the lower shearing knife (21) to shear the steel strip, and an auxiliary mechanism is installed on the connecting platform (3), the auxiliary mechanism comprising a limiting unit and a pressing unit; The limiting unit is used to limit the steel strips of different widths so that the steel strips to be sheared can move horizontally; The pressing unit is used to press the moved steel strip to facilitate the upper shearing knife (13) to shear the steel strip; The limiting unit comprises a forward and reverse motor (2) fixedly mounted on the outer wall of a fixing plate (1); a slide groove (4) is provided on the top of the connecting platform (3); two ends of the inner wall of the slide groove (4) are rotatably mounted with bidirectional screw rods (27); the outer wall of the bidirectional screw rod (27) is threadedly connected to a limiting plate (17); the limiting plate (17) extends from the inner wall of the slide groove (4) to the top of the limiting plate (17); and a limiting roller (18) is rotatably mounted on the inner wall of the limiting plate (17); The output shaft of the forward and reverse motor (2) passes through the inner wall of the slide groove (4) and is coaxially connected to one end of the bidirectional screw rod (27).

2. A pedal type steel strip shearing device according to claim 1, characterized in that: The clamping unit comprises a convex shaft (14) rotatably mounted between the two fixed plates (1), the convex shaft (14) being located above the connecting platform (3), a handle (16) being fixedly connected to the outer wall of a straight rod (15) in the middle of the convex shaft (14), a strip plate (20) being arranged below the convex shaft (14), a downwardly extending limit rod (25) being integrally formed at the bottom end of the strip plate (20), the limit rod (25) extending through the bottom of the connecting platform (3), a protrusion being formed at the bottom end of the limit rod (25), a No. 2 spring (26) being fixedly connected between the top of the protrusion and the bottom end of the connecting platform (3).

3. A pedal type steel strip shearing device according to claim 2, characterized in that: The clamping unit also includes a sleeve (19) fixedly connected to the bottom end of the strip plate (20), the inner wall of the sleeve (19) is fixedly connected to a No. 3 spring (28), the inner wall of the sleeve (19) is slidably connected to a movable rod (29), the top of the movable rod (29) is connected to the bottom end of the No. 3 spring (28), the bottom end of the movable rod (29) passes through the bottom of the sleeve (19), and the bottom end of the movable rod (29) is fixedly installed with a pressure plate (30).

4. A pedal-type steel strip shearing device according to claim 1, characterized in that: The pedal mechanism comprises a swing arm (6) rotatably mounted on the lower inner side of the two fixed plates (1); the swing arm (6) is rotatably connected to the fixed plates (1) via a rotating shaft (5); a pedal (7) is fixedly mounted on the other end of the swing arm (6); and a synchronization rod (8) is fixedly mounted between the two swing arms (6).

5. A pedal-type steel strip shearing device according to claim 4, characterized in that: The pedal mechanism also includes a limit groove (11) which is formed at the top of the fixed plate (1) and is recessed downwards. The bottom end of the inner wall of the limit groove (11) is fixedly connected to a spring (23). The top of the spring (23) is connected to a moving block (10) which is slidably connected to the inner wall of the limit groove (11). A transverse plate (12) is fixedly installed between the two moving blocks (10). A protruding shaft is formed at one end of the transverse plate (12). A limiting circular plate (22) is integrally formed on the outer wall of the protruding shaft. The protruding shaft cooperates with a nut and a limiting circular plate (22) to fix and install the upper shear knife (13).

6. A pedal-type steel strip shearing device according to claim 5, characterized in that: The two moving blocks (10) and the ends of the two swing arms (6) close to each other are integrally formed with a fixed shaft (24) protruding inwards, and the outer walls of the two vertically symmetrical fixed shafts are rotatably mounted with connecting rods (9).

Images