Steel bar bundle saw

Abstract

The invention relates to a steel bar bundle sawing device, comprising a first base, a lifting frame, a reciprocating electric saw, a feeding mechanism, a feeding mechanism and a leveling mechanism, wherein the first base is connected with a vertically arranged guide column, the lifting frame is slidably connected to the guide column, the reciprocating electric saw is connected to the lifting frame, the leveling mechanism comprises a second base, a first driving member and an impact hammer, the second base is erected above the feeding mechanism, the first driving member is connected to the top of the second base and is used to drive the impact hammer to reciprocate along the forward direction of the steel bar bundle, the feeding mechanism is connected with a first lifting mechanism, the first lifting mechanism and the feeding mechanism move the front end of the steel bar bundle to a moving path of the impact hammer moving with the first driving member, and the feeding mechanism transfers the steel bar bundle to a moving path of the reciprocating electric saw moving with the lifting frame; the technical problem that the cutting efficiency is low in the prior art due to the method of manually knocking the steel bar bundle before cutting so that the end surface of the steel bar bundle is leveled is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing devices, in particular to a steel bar bundle sawing device. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, and is widely used in the construction field. Taking bridge construction as an example, most of the steel bars used in bridge construction need to be bundled into bundles first, and then cut into specific lengths by a rebar cutter. However, the end faces of the steel bars in the bundles are often not flat. Therefore, when placing the bundles on the cutting machine, workers need to first hit the end faces of the bundles with a hammer to make the protruding steel bars return until the end faces of the steel bars in the bundles remain basically flush. This method of leveling the bundles is time-consuming and labor-intensive, and has low efficiency. In addition, the cut bundles will be piled up directly next to the cutting machine, and need to be transferred in a timely manner using a forklift, which also leads to low efficiency in rebar cutting. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a steel bar bundle saw that can automatically level the steel bar bundle and automatically transfer the cut steel bar bundle to improve the steel bar cutting efficiency.

[0004] In order to solve the above technical problems, the present invention provides a steel bar bundle sawing device, comprising a first base, a lifting frame, a reciprocating electric saw, a feeding mechanism, a feeding mechanism and a leveling mechanism. The feeding mechanism, the first base and the feeding mechanism are arranged in sequence along the forward direction of the steel bar bundle. The first base is connected to a vertically arranged guide column, the lifting frame is slidably connected to the guide column, the reciprocating electric saw is connected to the lifting frame, and the leveling mechanism comprises a second base, a first driving member and an impact hammer. The second base is erected above the feeding mechanism, the first driving member is connected to the top of the second base and is used to drive the impact hammer to reciprocate along the forward direction of the steel bar bundle, the feeding mechanism is connected to the first lifting mechanism, the first lifting mechanism and the feeding mechanism move the front end of the steel bar bundle to the moving path of the impact hammer following the movement of the first driving member, and the feeding mechanism moves the steel bar bundle to the moving path of the reciprocating electric saw following the movement of the lifting frame.

[0005] After adopting the above structure, the steel bar bundle sawing device of the present invention has the following advantages: the steel bar bundle is transferred to the bottom of the reciprocating electric saw by the feeding mechanism for cutting, and the cut steel bar bundle is directly transported by the feeding mechanism, thereby improving the steel bar transportation efficiency; before cutting, the steel bar bundle is lifted by the first lifting mechanism and the steel bar bundle is transported to the impact hammer by the feeding mechanism, and the impact hammer is driven by the first driving member to move back and forth to strike the steel bar bundle, so that the protruding steel bars are returned and the end faces of the steel bar bundle are flush, which greatly improves the leveling efficiency of the steel bars, thereby greatly improving the cutting efficiency of the steel bars.

[0006] As an improvement, the feeding mechanism includes a third base, a fourth base, a first roller, a second roller, a first connecting frame, a second connecting frame, a first roller and a second driving member. The front and rear ends of the third base are respectively connected to the first base and the fourth base. The third base and the fourth base are both connected to a first lifting mechanism. The first lifting mechanism on the third base is connected to the first connecting frame and drives the first connecting frame to rise and fall. The first roller and the second roller are both rotatably connected to the first connecting frame and the first roller is located above the second roller. The outer peripheral walls of the first roller and the second roller are both provided with an arc groove in the circumferential direction. The arc grooves on the first roller and the second roller form a conveying space for accommodating steel bar bundles. The second driving member drives the second roller. The roller rotates, and the first lifting mechanism on the fourth base is connected to the second connecting frame and drives the second connecting frame to rise and fall. The second connecting frame is rotatably connected with a plurality of first rollers, which are all horizontally arranged and equidistantly distributed along the forward direction of the steel bar bundle. With this structure, the steel bar bundle extends into the conveying space and respectively contacts the first roller and the second roller up and down, and friction is used to achieve stable and efficient conveying of the steel bar bundle. The rest of the steel bar bundle is located on the first roller, and the rotating first roller can reduce friction, so as to facilitate stable conveying of the steel bar bundle by the first roller and the second roller. Normally, the first connecting frame and the second connecting frame are lifted together by the first lifting mechanism to achieve stable support for the steel bar bundle.

[0007] As an improvement, vertical slide grooves are provided on both ends of the first connecting frame, and connecting shafts are rotatably connected to both ends of the first roller, and the connecting shafts are respectively slidably connected in the slide grooves. Two first motors are connected to the first connecting frame, and the output ends of the two first motors are both arranged upward and connected with studs, and the two studs are respectively threadedly connected to the two connecting shafts; with this structure, the studs are driven to rotate by the first motor, thereby adjusting the upper and lower positions of the connecting shaft and the first roller, so that the spacing between the first roller and the second roller is adjustable, ensuring that the steel bar bundle is against the first roller and the second roller, and preventing the steel bar bundle from slipping against the first roller and the second roller during the transfer process.

[0008] As an improvement, there are several fourth bases, and the front and rear ends of each fourth base are respectively connected to two fourth bases or one end is connected to the fourth base and the other end is connected to the third base. Each fourth base is connected to a first lifting mechanism, and the first lifting mechanism on each fourth base is connected to a second connecting frame, and each second connecting frame is rotatably connected to several first rollers. By adopting this structure, different numbers of fourth bases, second connecting frames and corresponding first rollers can be set to adapt to steel bar bundles of different lengths.

[0009] As an improvement, a third connecting frame is connected to the first base, a first side plate is fixedly connected to one side of the top of the third connecting frame, a third driving member is connected to the other side of the top of the third connecting frame, the third driving member is connected to the second side plate, the second side plate is located between the third driving member and the first side plate, the third driving member drives the second side plate to move closer to or away from the first side plate, and the first side plate and the second side plate are respectively located on both sides of the radial direction of the steel bar bundle; with this structure, the first side plate and the second side plate clamp the steel bar bundle, which plays a limiting role on the steel bar bundle and prevents the steel bar bundle from moving during cutting.

[0010] As an improvement, the feeding mechanism includes a fifth base, a conveyor belt, a fourth connecting frame, a second roller and a connecting plate. The fourth connecting frame is connected to the front side of the top end of the first base, the fifth base is connected to the front end of the first base, the second roller is rotatably connected to the fourth connecting frame, the rear end of the connecting plate is connected to the fourth connecting frame, the front end of the connecting plate is connected to the fifth base, and the conveyor belt is connected to the fifth base. The cut steel bar bundle is moved to the conveyor belt via the connecting plate. With this structure, the second roller supports the part of the steel bar bundle to be cut during cutting, and after cutting, the steel bar bundle is directly moved to the conveyor belt on the fifth base through the connecting plate, and the conveyor belt automatically sends the cut steel bar bundle away, thereby improving cutting efficiency.

[0011] As an improvement, a groove is provided on the fifth base, and a first hydraulic cylinder is connected to the bottom surface of the groove. The rear end of the connecting plate is rotatably connected to the fourth connecting frame, and the first hydraulic cylinder drives the front end of the connecting plate to rise and fall and makes the connecting plate horizontal or inclined. The rear end of the connecting plate is lower than or equal to the top of the second roller. When the connecting plate is in an inclined state, the front end of the connecting plate is lower than the rear end of the connecting plate and the front end of the connecting plate is higher than or equal to the conveyor belt; if the connecting plate is directly set to an inclined state, the difference in height between the front end of the cut steel bar bundle and the connecting plate is large, and the impact force of the steel bar bundle falling on the connecting plate is large, which is easy to damage the connecting plate under long-term use. Therefore, in the cutting process of the present invention, the connecting plate is kept in a horizontal state, and the cut steel bar bundle falls directly on the connecting plate. Then the connecting plate is tilted again, and the steel bar bundle slides onto the conveyor belt through the connecting plate, so that the difference in height between the steel bar bundle and the connecting plate can be reduced, the impact force of the steel bar bundle on the connecting plate can be reduced, damage to the connecting plate can be avoided, and the service life of the connecting plate can be extended.

[0012] As an improvement, a number of third rollers are rotatably connected to the connecting plate, and the third rollers are all horizontally arranged and equidistantly distributed along the forward direction of the steel bar bundle. With this structure, the friction between the steel bar bundle and the third rollers is small, ensuring that the steel bar bundle can slide smoothly onto the conveyor belt.

[0013] As an improvement, a water tank is provided on the upper end surface of the first base, and cutting fluid is stored in the water tank. A circulating pump is connected to the first base, and the circulating pump is connected to a nozzle through a hose. With this structure, the circulating pump sprays the cutting fluid onto the steel bar bundle through the hose and the nozzle, the water tank collects the cutting fluid, and the circulating pump reuses it.

[0014] As an improvement, the driving end of the first driving member is connected to a second motor, and the output end of the second motor is connected to a turntable. During leveling, the turntable and the steel bar bundle are coaxial, and a plurality of impact hammers are connected to the end face of the turntable. The plurality of impact hammers are distributed along the circumference of the turntable, and the distances between the center of each impact hammer and the center of the end face of the turntable are different. After the turntable rotates one circle, the diameter of a virtual circle formed by the set of trajectories of the plurality of impact hammers is greater than or equal to the diameter of the steel bar bundle. With this structure, the plurality of impact hammers are distributed along the circumference of the turntable, and the distances between the center of each impact hammer and the center of the end face of the turntable are different. The steel bars at different positions in the steel bar bundle are respectively struck by the plurality of impact hammers. After each strike, the turntable is driven to rotate by the second motor, the circumferential position of each impact hammer is adjusted, and the steel bar bundle is struck again until the end face of the steel bar bundle is flush. In this way, the leveling efficiency can be ensured while avoiding the movement of all the steel bars due to the static friction between the steel bars caused by one impact hammer striking the entire end face of the steel bar bundle at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure in the cutting state of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure in the flat state in the present invention.

[0017] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0018] Figure 4 for Figure 2 A partial enlarged view of part B in the middle.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the feeding mechanism part of the present invention.

[0020] Figure 6 It is a schematic diagram of the distribution of the impact hammer in the present invention.

[0021] Figure numerals: 1, first base; 2, lifting frame; 3, reciprocating electric saw; 4, feeding mechanism; 41, third base; 42, fourth base; 43, first roller; 44, second roller; 45, first connecting frame; 46, second connecting frame; 47, first roller; 48, second driving member; 5, feeding mechanism; 51, fifth base; 52, conveyor belt; 53, fourth connecting frame; 54, second roller; 55, connecting plate; 6, leveling machine structure; 61, second base; 62, first drive member; 63, impact hammer; 7, guide column; 8, first lifting mechanism; 9, arc groove; 10, slide groove; 11, connecting shaft; 12, first motor; 13, stud; 14, third connecting frame; 15, first side plate; 16, third drive member; 17, second side plate; 18, groove; 19, first hydraulic cylinder; 20, third roller; 21, water storage tank; 22, second motor; 23, turntable. DETAILED DESCRIPTION

[0022] A steel bar bundle sawing device of the present invention is described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 6 As shown, a steel bar bundle sawing device includes a first base 1, a lifting frame 2, a reciprocating electric saw 3, a feeding mechanism 4, a feeding mechanism 5 and a leveling mechanism 6. The feeding mechanism 4, the first base 1 and the feeding mechanism 5 are arranged in sequence along the forward direction of the steel bar bundle, that is, the feeding mechanism 4 is located at the rear end of the first base 1, and the feeding mechanism 5 is located at the front end of the first base 1. It should be noted that the front and back in this embodiment are based on the forward direction of the steel bar bundle, that is, the forward direction of the steel bar bundle is the front, and the opposite direction to the forward direction of the steel bar bundle is the rear, and the left and right directions are the radial directions of the steel bar bundle; a vertically arranged guide column 7 is connected to the first base 1, and the lifting frame 2 is slidably connected to the guide column 7, wherein, There are two guide columns 7, and the specific driving and connecting structure between the lifting frame 2 and the guide columns 7 is the existing technology, which will not be described in detail here; the reciprocating electric saw 3 is connected to the lifting frame 2 and rises or falls with the lifting frame 2. A water tank 21 is provided on the upper end surface of the first base 1, and cutting fluid is stored in the water tank 21. A circulating pump is connected to the first base 1, and the circulating pump is connected to a nozzle through a hose. The circulating pump absorbs the cutting fluid in the water tank 21 and sprays the cutting fluid from the nozzle through the hose, spraying the cutting fluid on the cutting part of the steel bar bundle, and the sprayed cutting fluid flows back to the water tank 21 for recycling. Its specific structure is the existing technology, which will not be described in detail here.

[0024] like Figure 1As shown, the leveling mechanism 6 includes a second base 61, a first driving member 62 and an impact hammer 63. The impact hammer 63 is horizontally arranged and faces backward. The second base 61 is mounted above the feeding mechanism 5. The first driving member 62 is connected to the top of the second base 61 and is used to drive the impact hammer 63 to reciprocate along the forward direction of the steel bar bundle, that is, to drive the impact hammer 63 to move forward and backward. The feeding mechanism 4 is connected to a first lifting mechanism 8. The first lifting mechanism 8 and the feeding mechanism 5 move the front end of the steel bar bundle to the moving path of the impact hammer 63 moving along the first driving member 62. The feeding mechanism 5 transfers the steel bar bundle to the moving path of the reciprocating electric saw 3 along with the movement of the lifting frame 2; in other words, when the steel bar bundle needs to be leveled, the feeding mechanism 4 needs to send the steel bar bundle to the direction of the second base 61, and the first lifting mechanism 8 also needs to lift the steel bar bundle, so that the impact hammer 63 can hit the steel bar bundle. When the steel bar bundle is cut, the first lifting mechanism 8 does not need to lift the steel bar bundle, but only needs to use the feeding mechanism 4 to send the steel bar bundle to the bottom of the reciprocating electric saw 3, that is, the leveling position of the steel bar bundle is higher than the cutting position of the steel bar bundle.

[0025] like Figures 2 to 4 As shown, the feeding mechanism 4 includes a third base 41, a fourth base 42, a first roller 43, a second roller 44, a first connecting frame 45, a second connecting frame 46, a first roller 47 and a second driving member 48. The front and rear ends of the third base 41 are respectively connected to the first base 1 and the fourth base 42, wherein the third base 41 and the first base 1 are integrally formed, and the third base 41 and the fourth base 42 are detachably connected. In this embodiment, the third base 41 and the fourth base 42 are connected by bolts, and the third base 41 and the fourth base 42 are both connected with a first lifting mechanism 8. In this embodiment, the first lifting mechanism 8 is a vertically arranged hydraulic cylinder. The first lifting mechanism 8 on the third base 41 is connected to the first connecting frame 45 and drives the first connecting frame 45 to rise and fall. In this embodiment, the middle part of the first connecting frame 45 is a U-shaped plate with an opening upward, and bumps are connected to the lower part of the left and right outer end surfaces of the U-shaped plate. The first roller 43 and the second roller 44 are both rotatably connected to the first connecting frame 45 and the first roller 43 is located above the second roller 44. The first roller 43 and the second roller 44 are both located between the inner walls on the left and right sides of the U-shaped plate, and the axes of the first roller 43 and the second roller 44 are both perpendicular to the steel bar bundle. The outer peripheral walls of the first roller 43 and the second roller 44 are both provided with arc grooves 9 in the circumferential direction. The arc grooves 9 on the first roller 43 and the second roller 44 form a conveying space for accommodating the steel bar bundle. When the steel bars are transferred, they are located in the conveying space, and the upper and lower parts thereof are respectively abutted against the first roller 43 and the second roller 44, and the second roller 44 is driven to rotate by the second driving member 48. In this embodiment, the second driving member 48 is a motor, which is connected to the first connecting frame 45 and directly drives the second roller 44 to rotate, and utilizes the friction between the steel bar bundle and the first roller 43 to drive the first roller 43 to rotate.

[0026] like Figure 2 As shown, the first lifting mechanism 8 on the fourth base 42 is connected to the second connecting frame 46 and drives the second connecting frame 46 to rise and fall. A plurality of first rollers 47 are rotatably connected to the second connecting frame 46. The first rollers 47 are all horizontally arranged and equidistantly distributed along the advancing direction of the steel bar bundle. Each first roller 47 is perpendicular to the steel bar bundle. In addition, the top of the first roller 47 is always at the same height as the bottom of the conveying space. The fourth base 42 in this embodiment is a hollow box structure. In other embodiments, the fourth base 42 may also be a bottom plate structure. There are a plurality of fourth bases 42, and each of the front and rear ends of the fourth base 42 is respectively connected to two fourth bases 42 or one end is connected to the fourth base 42 and the other end is connected to the third base 41, that is, the front end of the fourth base 42 at the front end is connected to the third base 41, and the rear end is connected to the fourth base 42 located at the rear side thereof, the front end of the fourth base 42 at the rear end is connected to the fourth base 42 located at the front side thereof, and the front and rear ends of the remaining fourth bases 42 are respectively connected to adjacent fourth bases 42. In this embodiment, the fourth bases 42 and the fourth bases 42 and the third bases 41 are connected by bolts; each fourth base 42 is connected to a first lifting mechanism 8, and each first lifting mechanism 8 on the fourth base 42 is connected to a second connecting frame 46, and each second connecting frame 46 is rotatably connected to a plurality of first rollers 47, and the lifting actions of each first lifting mechanism 8 are synchronized.

[0027] like Figure 2 and Figure 3 As shown, vertical slide grooves 10 are provided at both ends of the first connecting frame 45, and connecting shafts 11 are rotatably connected at both ends of the first roller 43. The connecting shafts 11 are respectively slidably connected in the slide grooves 10. Two first motors 12 are connected to the first connecting frame 45, and the output ends of the two first motors 12 are both arranged upward and connected with studs 13. The two studs 13 are respectively threadedly connected to the two connecting shafts 11.

[0028] like Figure 2 and Figure 4 As shown, a third connecting frame 14 is connected to the first base 1, and a first side plate 15 is fixedly connected to one side of the top of the third connecting frame 14, and a third driving member 16 is connected to the other side of the top of the third connecting frame 14. The third driving member 16 is connected to the second side plate 17, and the second side plate 17 is located between the third driving member 16 and the first side plate 15. The third driving member 16 drives the second side plate 17 to move closer to or away from the first side plate 15. The first side plate 15 and the second side plate 17 are respectively located on both sides of the radial direction of the steel bar bundle. When preventing the steel bar bundle from being bundled, one side of the steel bar bundle is always kept against the first side plate 15. In this way, the steel bar bundle can be clamped between the first side plate 15 and the second side plate 17 through the third driving member 16.

[0029] like Figure 5As shown, the feeding mechanism 5 includes a fifth base 51, a conveyor belt 52, a fourth connecting frame 53, a second roller 54 and a connecting plate 55. The fourth connecting frame 53 is connected to the front side of the top of the first base 1 and is also located in front of the third connecting frame 14. The fifth base 51 is connected to the front end of the first base 1. In this embodiment, the fifth base 51 and the first base 1 are integrally formed; the second roller 54 is rotatably connected to the fourth connecting frame 53, the rear end of the connecting plate 55 is connected to the fourth connecting frame 53, and the rear end of the connecting plate 55 is located in front of the second roller 54, the front end of the connecting plate 55 is connected to the fifth base 51, and the conveyor belt 5 2 is connected to the fifth base 51, and the cut steel bar bundle is moved to the conveyor belt 52 through the connecting plate 55; the fifth base 51 is provided with a groove 18, and the bottom surface of the groove 18 is connected with a first hydraulic cylinder 19, the rear end of the connecting plate 55 is rotatably connected to the fourth connecting frame 53, and the first hydraulic cylinder 19 drives the front end of the connecting plate 55 to rise and fall and make the connecting plate 55 horizontal or inclined, and the rear end of the connecting plate 55 is lower than or equal to the top of the second roller 54. When the connecting plate 55 is in an inclined state, the front end of the connecting plate 55 is lower than the rear end of the connecting plate 55 and the front end of the connecting plate 55 is higher than or equal to the conveyor belt 52; In the embodiment, the upper end of the piston rod of the first hydraulic cylinder 19 is against the lower bottom surface of the front end of the connecting plate 55, and the rear end of the connecting plate 55 is at the same height as the top of the second roller 54. When the connecting plate 55 is tilted, the front end of the connecting plate 55 is at the same height as the conveyor belt 52, and from front to back are the conveyor belt 52, the connecting plate 55, the second roller 54, the reciprocating electric saw 3 and the third connecting frame 14. In this way, when sawing the steel bar bundle, the first side plate 15 and the second side plate 17 clamp the steel bar bundle. After cutting, the sawed steel bar bundle is separated from the main body of the steel bar bundle, and its center of gravity will not fall on the third connecting frame 14. As long as the first hydraulic cylinder 1 9 can be retracted to tilt the connecting plate 55 so that the steel bar bundle can slide from the connecting plate 55 to the conveyor belt 52; if the third connecting frame 14 is set at the front side of the reciprocating electric saw 3, after cutting, even if the first side plate 15 and the second side plate 17 release the steel bar bundle, the third connecting frame 14 still acts on the steel bar bundle, which may cause the steel bar bundle to be unable to slide from the connecting plate 55; in addition, in order to ensure that the steel bar bundle slides smoothly from the connecting plate 55, a plurality of third rollers 20 are rotatably connected to the connecting plate 55, and the plurality of third rollers 20 are all horizontally arranged and equidistantly distributed along the forward direction of the steel bar bundle.

[0030] like Figure 1 and Figure 6As shown, the driving end of the first driving member 62 is connected to the second motor 22, and the output end of the second motor 22 is connected to the turntable 23. When aligned, the turntable 23 is coaxial with the steel bar bundle, and a plurality of impact hammers 63 are connected to the end face of the turntable 23. The plurality of impact hammers 63 are distributed circumferentially along the turntable 23, and the distances between the center of each impact hammer 63 and the center of the end face of the turntable 23 are different, that is, the sizes of the circles made with the center of the turntable 23 as the center and the distance between the center of each impact hammer 63 and the turntable 23 as the radius are different. When the turntable 23 rotates one circle, the diameter of the virtual circle formed by the set of trajectories of the plurality of impact hammers 63 is greater than or equal to the diameter of the steel bar bundle. Taking this embodiment as an example, Figure 6 As shown, there are three impact hammers 63 in this embodiment, wherein the trajectory formed by the outermost impact hammer 63 after rotating the turntable 23 for one circle interferes with the middle impact hammer 63, that is, Figure 6 The dotted circle with the largest diameter in the middle, and the trajectory formed by the middle impact hammer 63 after rotating one circle with the turntable 23 interferes with the innermost impact hammer 63, that is, Figure 6 The center of the turntable 23 falls within the trajectory formed by the innermost impact hammer 63 after the turntable 23 rotates one circle. In this way, each time the first driving member 62 drives the three impact hammers 63 to strike the steel bar bundle, only three parts of the steel bar bundle are struck. As the second motor 22 rotates, the three impact hammers 63 change their positions on the turntable 23 so that they can strike other parts of the steel bar bundle. After the turntable 23 rotates one circle, the three impact hammers 63 can complete the striking and leveling of the entire end surface of the steel bar bundle without missing any part of the end surface of the steel bar bundle. In this embodiment, the angles between the centers of the three impact hammers 63 and the line connecting the centers of the turntable 23 are all 120°. In this way, the positions of the three impact hammers 63 on the turntable 23 can be dispersed as much as possible to avoid the three impact hammers 63 striking the steel bar bundle end surfaces close to each other, further preventing the steel bars from moving together due to the static friction between the steel bars.

[0031] Before sawing, a leveling operation is performed first, and the feeding mechanism 4 moves the steel bundle forward. At this time, the first motor 12 drives the stud 13 to rotate so that the first roller 43 moves downward, thereby reducing the distance between the first roller 43 and the second roller 44 to prevent the steel bundle from slipping. Then the first motor 12 stops rotating, and then the first lifting mechanism 8 lifts the steel bundle. After the steel bundle is in place, the first motor 12 rotates in the opposite direction to increase the distance between the first roller 43 and the second roller 44. At this time, the first driving member 62 drives the impact hammer 63 to knock the end face of the steel bundle. After each knock, the second motor 22 drives the turntable 23 to rotate a certain angle, and then the first driving member 62 drives the impact hammer 63 to knock the steel bundle. This reciprocation is carried out until the end faces of the steel bar bundle are flush. In this embodiment, the first driving member 62 adopts a hydraulic cylinder, and the second motor 22 needs to withstand a large axial force, so a motor that can resist axial impact force is selected, such as a brushless DC motor that can resist axial impact force disclosed in Chinese patent CN102710084B; after leveling, the first lifting mechanism 8 drives the steel bar bundle to descend, and the first motor 12 rotates again so that the first roller 43 and the second roller 44 clamp the steel bar bundle for transfer. After the steel bar bundle is in place, the first side plate 15 and the second side plate 17 clamp the steel bar bundle and are sawed by the reciprocating electric saw 3. The sawed steel bar bundle is directly sent to the conveyor belt 52 by the connecting plate 55 for subsequent transportation.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one embodiment, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A steel bar bundle saw, It is characterized in that The invention comprises a first base (1), a lifting frame (2), a reciprocating electric saw (3), a feeding mechanism (4), a feeding mechanism (5) and a leveling mechanism (6); the feeding mechanism (4), the first base (1) and the feeding mechanism (5) are arranged in sequence along the advancing direction of the steel bar bundle; the first base (1) is connected to a vertically arranged guide column (7); the lifting frame (2) is slidably connected to the guide column (7); the reciprocating electric saw (3) is connected to the lifting frame (2); the leveling mechanism (6) comprises a second base (61), a first driving member (62) and an impact hammer (63); the second The base (61) is erected above the feeding mechanism (5); the first driving member (62) is connected to the top of the second base (61) and is used to drive the impact hammer (63) to reciprocate along the advancing direction of the steel bar bundle; the feeding mechanism (4) is connected to a first lifting mechanism (8); the first lifting mechanism (8) and the feeding mechanism (5) move the front end of the steel bar bundle to a moving path of the impact hammer (63) along with the first driving member (62); and the feeding mechanism (5) transfers the steel bar bundle to a moving path of the reciprocating electric saw (3) along with the lifting frame (2); The driving end of the first driving member (62) is connected to a second motor (22), and the output end of the second motor (22) is connected to a turntable (23). When aligned, the turntable (23) and the steel bar bundle are coaxial. The end face of the turntable (23) is connected to a plurality of impact hammers (63). The plurality of impact hammers (63) are distributed along the circumference of the turntable (23), and the distances between the center of each impact hammer (63) and the center of the end face of the turntable (23) are different. When the turntable (23) rotates one circle, the diameter of a virtual circle formed by the collection of the trajectories of the plurality of impact hammers (63) is greater than or equal to the diameter of the steel bar bundle.

2. A steel bar bundle saw according to claim 1, It is characterized in that The feeding mechanism (4) comprises a third base (41), a fourth base (42), a first roller (43), a second roller (44), a first connecting frame (45), a second connecting frame (46), a first roller (47) and a second driving member (48); the front and rear ends of the third base (41) are respectively connected to the first base (1) and the fourth base (42); the third base (41) and the fourth base (42) are both connected to the first lifting mechanism (8); the first lifting mechanism (8) on the third base (41) is connected to the first connecting frame (45) and drives the first connecting frame (45) to rise and fall; the first roller (43) and the second roller (44) are both rotatably connected to the first connecting frame (45); The first roller (43) is disposed on a frame (45) and the first roller (43) is located above the second roller (44); arc grooves (9) are provided on the outer peripheral walls of the first roller (43) and the second roller (44) along the circumferential direction; the arc grooves (9) on the first roller (43) and the second roller (44) form a conveying space for accommodating a steel bar bundle; the second driving member (48) drives the second roller (44) to rotate; the first lifting mechanism (8) on the fourth base (42) is connected to the second connecting frame (46) and drives the second connecting frame (46) to rise and fall; a plurality of the first rollers (47) are rotatably connected to the second connecting frame (46); the first rollers (47) are all horizontally arranged and equidistantly distributed along the advancing direction of the steel bar bundle.

3. A steel bar bundle saw according to claim 2, It is characterized in that The left and right ends of the first connecting frame (45) are both provided with vertical slide grooves (10), the left and right ends of the first roller (43) are both rotatably connected with connecting shafts (11), the connecting shafts (11) are respectively slidably connected in the slide grooves (10), the first connecting frame (45) is connected with two first motors (12), the output ends of the two first motors (12) are both arranged upward and connected with studs (13), and the two studs (13) are respectively threadedly connected to the two connecting shafts (11).

4. A steel bar bundle saw according to claim 2, It is characterized in that There are a plurality of fourth bases (42), and each of the fourth bases (42) is respectively connected to two fourth bases (42) at its front and rear ends, or one end is connected to the fourth base (42), and the other end is connected to the third base (41), and each of the fourth bases (42) is connected to the first lifting mechanism (8), and the first lifting mechanism (8) on each of the fourth bases (42) is connected to the second connecting frame (46), and each of the second connecting frames (46) is rotatably connected to a plurality of the first rollers (47).

5. A steel bar bundle saw according to claim 1, It is characterized in that A third connecting frame (14) is connected to the first base (1), a first side plate (15) is fixedly connected to one side of the top end of the third connecting frame (14), a third driving member (16) is connected to the other side of the top end of the third connecting frame (14), the third driving member (16) is connected to the second side plate (17), the second side plate (17) is located between the third driving member (16) and the first side plate (15), the third driving member (16) drives the second side plate (17) to move towards or away from the first side plate (15), and the first side plate (15) and the second side plate (17) are respectively located on both sides of the radial direction of the steel bar bundle.

6. A steel bar bundle saw according to claim 1, It is characterized in that The feeding mechanism (5) comprises a fifth base (51), a conveyor belt (52), a fourth connecting frame (53), a second roller (54) and a connecting plate (55); the fourth connecting frame (53) is connected to the front side of the top end of the first base (1); the fifth base (51) is connected to the front end of the first base (1); the second roller (54) is rotatably connected to the fourth connecting frame (53); the rear end of the connecting plate (55) is connected to the fourth connecting frame (53); the front end of the connecting plate (55) is connected to the fifth base (51); the conveyor belt (52) is connected to the fifth base (51); and the cut steel bar bundle is moved to the conveyor belt (52) via the connecting plate (55).

7. A steel bar bundle saw according to claim 6, It is characterized in that The fifth base (51) is provided with a groove (18), the bottom surface of which is connected to a first hydraulic cylinder (19), the rear end of the connecting plate (55) is rotatably connected to the fourth connecting frame (53), the first hydraulic cylinder (19) drives the front end of the connecting plate (55) to rise and fall and makes the connecting plate (55) in a horizontal or inclined state, the rear end of the connecting plate (55) is lower than or equal to the top end of the second roller (54), and when the connecting plate (55) is in an inclined state, the front end of the connecting plate (55) is lower than the rear end of the connecting plate (55) and the front end of the connecting plate (55) is higher than or equal to the conveyor belt (52).

8. A steel bar bundle saw according to claim 7, It is characterized in that A plurality of third rollers (20) are rotatably connected to the connecting plate (55), and the plurality of third rollers (20) are all arranged horizontally and are equidistantly distributed along the advancing direction of the steel bar bundle.

9. The steel bar bundle saw according to claim 1, It is characterized in that A water storage tank (21) is provided on the upper end surface of the first base (1), and cutting liquid is stored in the water storage tank (21). A circulation pump is connected to the first base (1), and the circulation pump is connected to a nozzle via a hose.

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