Steel bar cutting device

Abstract

The utility model relates to the technical field of buildings, in particular to a steel bar cutting device which comprises a conveying channel used for conveying steel bars and a cutting device used for cutting the steel bars, the conveying channel comprises a bottom plate and baffles arranged on the two sides of the bottom plate, and a plurality of through grooves are formed in the bottom plate. A plurality of shaft rods used for limiting the conveying direction of the steel bars are arranged in the through groove, and the upper ends of the shaft rods upwards stretch out of the through groove. Compared with the prior art, through the arrangement of the rotating shaft and the rotating drum, the technical problem that in the prior art, the length direction and the conveying direction possibly intersect in the steel bar conveying process, and consequently a plurality of steel bar sections cut by the cutting device at a time are inconsistent in length is solved.

Description

Technical Field

[0001] This utility model patent relates to the field of construction technology, specifically a steel bar cutting device. Background Art

[0002] With the continuous development of water conservancy projects, steel bars, as the concrete skeleton, have become a widely used and large-volume main material used in water conservancy projects. Before pouring concrete, the steel bars must be formed into a skeleton of specific specifications and shapes and incorporated into the formwork. Before creating the steel skeleton, the steel bars need to be strengthened, stretched, straightened, cut, bent, connected, and finally bundled into shape.

[0003] During construction, steel bar cutting machines are often used to cut steel bars. However, most of the existing steel bar cutting machines can only cut one steel bar at a time. For large-scale water conservancy projects, the working efficiency of such steel bar cutting machines is low. In order to solve the above problem, a steel bar cutting device that can cut multiple steel bars at a time has been studied. The structure of the existing steel bar cutting section equipment is shown in the attached figure of the patent "A multi-combination steel bar shearing and bending production line and its use method" (application number CN202211556521.6, publication date 20231003). Multiple steel bars are placed on the conveyor belt at one time, and the steel bars are transported forward along the rollers on the conveyor belt, and the cutting mechanism cuts the steel bars.

[0004] This steel bar cutting device has the following defects in actual use:

[0005] 1. The conveyor belt is not designed with a device to limit the direction of steel bar transmission. The steel bars are not necessarily parallel to the transmission direction during transmission on the conveyor belt. The length direction may intersect with the transmission direction. Therefore, it is difficult to ensure that the cutting mechanism can cut multiple steel bars at a time and the cut steel bars are of consistent length.

[0006] 2. The steel bar is prone to tail swinging during the cutting process, that is, at the moment of cutting, the part of the steel bar near the cutting point is prone to bounce up. If no protective structure is set up, when the length of the cut steel bar is short, the cut steel bar may bounce up at the moment of cutting and injure the surrounding staff. Utility Model Content

[0007] The utility model is intended to provide a steel bar cutting device, which is mainly used to solve the technical problem in the prior art that the length direction and the transmission direction may intersect during the transmission of steel bars, resulting in inconsistent lengths of several steel bar segments cut by the cutting device at one time.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A steel bar cutting device includes a transmission channel for transmitting steel bars and a cutting device for cutting steel bars. The transmission channel includes a base plate and baffles arranged on both sides of the base plate. A plurality of through slots are opened on the base plate. A plurality of shafts for limiting the transmission direction of the steel bars are arranged in the through slots, and the upper ends of the shafts extend upward from the through slots.

[0010] The beneficial effects of this program are as follows:

[0011] When several steel bars are transmitted in the transmission channel, the movement of each of the several steel bars is as follows: a single steel bar passes through several adjacent shafts set on the through grooves, and the gaps between the several shafts constrain the transmission direction of the steel bars, ensuring that the steel bars are always parallel to the preset transmission direction during the transmission process, thereby preventing the steel bars from tilting, and ensuring that when the cutting device cuts several steel bars, the length of the cut steel bar segments is consistent, which solves the technical problem in the prior art that the length direction may intersect with the transmission direction during the transmission of the steel bars, resulting in inconsistent lengths of several steel bar segments cut by the cutting device at one time.

[0012] Preferably, a rotating drum is rotatably sleeved on the portion of the upper end of the shaft extending out of the through slot. When the steel bar passes through the gap between adjacent shafts, the rotating drum rotates to reduce friction during the steel bar transmission process and speed up the efficiency of steel bar transmission.

[0013] Preferably, an adjustment device is provided below each through-slot, comprising a mounting plate with mounting arms fixed at both ends thereof, the mounting arms being fixedly connected to the side plates at their ends distal therefrom. The upper surface of the mounting plate is provided with a plurality of mounting slots corresponding to the plurality of shaft rods, with the lower ends of the shaft rods extending from the through-slots and inserted into the mounting slots. In this embodiment, the shaft rods can be selectively inserted into different mounting slots to adjust the spacing between adjacent shaft rods, thereby accommodating rebars of varying thicknesses.

[0014] Preferably, the bottom plate is rotatably connected to a plurality of rollers, the axes of which are perpendicular to the direction of transmission of the steel bars. The arrangement of the rollers can reduce the friction between the steel bars and the bottom plate and increase the transmission speed of the steel bars.

[0015] Preferably, a drive device for driving the transmission of the steel bars is also mounted on the bottom plate. The drive device includes a driving wheel whose axis is parallel to the axis of the roller. The driving wheel and the roller have equal diameters and their axis heights are aligned. Drive shafts are coaxially disposed at both ends of the driving wheel. The ends of the two driving shafts that are separated from each other pass through a baffle and are rotatably connected to the baffle. One end of one of the driving shafts that passes through the baffle is fixedly connected to a motor, which is fixed to the outside of the baffle. The motor drives the driving shaft to rotate, thereby driving the driving wheel to rotate, and further driving the steel bars to move in the transmission direction.

[0016] Preferably, the cutting device includes a vertically movable blade, a base plate having a boss fixed thereto below the blade, the upper surface of the boss being horizontally disposed and tangent to the circumference of the driving wheel, and a groove formed on the upper surface of the boss below the blade. When the rebar is driven by the driving wheel to be transferred below the blade, the cutting device operates to drive the blade downward to cut the rebar, and the groove serves to accommodate the blade, ensuring complete severance of the rebar and preventing damage to the blade.

[0017] Preferably, the transmission channel is further provided with protective devices on both sides of the cutting device. The protective devices include a baffle plate positioned above the rebar. A plurality of through-holes are defined in the two baffle plates, and the baffle plate passes through the two corresponding through-holes. One end of the baffle plate is upset, and the other end is threaded with a nut. In this embodiment, the height of the baffle plate can be adjusted by inserting it into the through-holes at different heights. When the rebar is cut, the baffle plate prevents the rebar from bouncing violently due to tail swinging, which could injure personnel.

[0018] Preferably, a discharge port is formed on the bottom plate of the transmission channel, the discharge port being located downstream of the cutting device, and a downwardly inclined feed plate is installed below the discharge port. In this embodiment, after the cutting device cuts the steel bar, one end of the cut steel bar is located above the discharge port and falls into the discharge port, sliding down the feed plate and out of the steel bar cutting device.

[0019] Preferably, a limit plate is installed above the discharge port to limit the length of the cut steel bar, and an inverted U-shaped clamping plate is provided at each end of the limit plate for clamping the baffle from top to bottom. The side plate is provided with a transverse sliding groove, and the ends of the clamping plate overlap with the sliding groove. The ends of the clamping plate are fixed together by two sets of bolts, and the bolts include screws that pass through the sliding groove. In this solution, the two ends of the clamping plate are connected by bolts, and the adjusting bolts can bring the two ends of the clamping plate closer together, clamping the baffle, thereby fixing the position of the clamping plate and further fixing the position of the limit plate; two sets of bolts are fixed to one clamping plate, and the screws of the two sets of bolts both pass through the sliding groove. Therefore, when the steel bar hits the limit plate, the limit plate cannot rotate circumferentially, thereby improving the stability of the limit plate within the transmission channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structure of a steel bar cutting device of this utility model patent Figure 1 ;

[0021] Figure 2 This is a three-dimensional structure of a steel bar cutting device of this utility model patent Figure 2 ;

[0022] Figure 3 This is a structural diagram of the adjustment device of a steel bar cutting device of this utility model patent.

[0023] The figure marks in the drawings of the specification include: side panel 11, through hole 12, through slot 13, slide slot 14, boss 15, groove 151, discharge port 16, feed plate 161, baffle bar 2, rotating shaft 31, rotating drum 32, mounting plate 33, mounting arm 34, mounting slot 331, frame 41, blade 42, limit plate 5, clamping plate 51, bolt 52, roller 6, driving wheel 7, motor 71. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, a steel bar cutting device includes a transmission channel for transmitting steel bars and a cutting device for cutting the steel bars.

[0026] The cutting device includes an inverted U-shaped frame 41, with a transmission channel located in the middle of the frame 41. A cylinder is mounted on the frame 41, and a cutting assembly for cutting steel bars is fixed to the output end of the cylinder. The cutting assembly includes a blade 42 that moves up and down under the drive of the cylinder;

[0027] The transmission channel includes a base plate and baffles arranged on both sides of the base plate. The steel bars are transmitted from one end of the transmission channel to the cutting device and are cut by the falling blade 42; a protective device is also provided on both sides of the cutting device on the transmission channel, and the protective device includes a baffle 2 arranged above the steel bars. A plurality of corresponding through holes 12 are provided on the two baffles, and the baffle 2 passes through two corresponding through holes 12, and one end of the baffle 2 is upset and the other end is threadedly connected with a nut; the height of the baffle 2 can be adjusted by inserting it into the through holes 12 of different heights. When the steel bars are cut, the baffle 2 can prevent the steel bars from bouncing up significantly due to the tail swing phenomenon and injuring the staff.

[0028] The bottom plate is provided with a plurality of through slots 13, in which a plurality of shafts for limiting the direction of steel bar transmission are arranged. The upper ends of the shafts extend upwardly from the through slots 13 and are rotatably sleeved with a rotating drum 32. Specifically, the top of the rotating drum 32 is sealed with a top cover and the rotating drum 32 with the top cover is arranged on the shafts; when the steel bars pass through the gaps between adjacent shafts, the rotating drum 32 rotates to reduce the friction during the steel bar transmission process, thereby accelerating the efficiency of the steel bar transmission;

[0029] like Figure 3As shown, an adjustment device is provided under each of the through slots 13, and the adjustment device includes a mounting plate 33, with mounting arms 34 fixed at both ends of the mounting plate 33, and the end of the mounting arm 34 away from the mounting plate 33 is fixedly connected to the side plate 11, and the upper surface of the mounting plate 33 is provided with a plurality of mounting slots 331 corresponding to the plurality of the shaft rods. The lower end of the shaft rod extends out of the through slot 13 and is inserted into the mounting slot 331. The shaft rod can be selectively inserted into different mounting slots 331 to adjust the spacing between adjacent shaft rods, so as to adapt to steel bars of different thicknesses.

[0030] like Figure 2 As shown, a plurality of rollers 6 are rotatably connected to the base plate. The axis of the rollers 6 is perpendicular to the direction of steel bar transmission. A rotating shaft 31 rotatably connected to the side plates 11 is coaxially fixed at both ends of the rollers 6. The arrangement of the rollers 6 can reduce the friction of the steel bars on the base plate and increase the transmission speed of the steel bars. Also mounted on the base plate is a driving wheel 7 whose axis is parallel to the axis of the rollers 6. The driving wheel 7 and the rollers 6 have the same diameter and the same axis height. Drive shafts are coaxially arranged at both ends of the driving wheel 7. The ends of the two driving shafts that are away from each other pass through the baffle and are rotatably connected to the baffle. One of the drive shafts is fixedly connected to a motor 71 at one end that passes through the baffle. The motor 71 drives the drive shaft to rotate, thereby driving the driving wheel 7 to rotate, and in turn, driving the steel bars in the transmission direction. A pad is fixed to the outside of the baffle, and the motor 71 is fixed to the pad.

[0031] A boss 15 is fixed on the bottom plate below the blade 42. The upper surface of the boss 15 is horizontally arranged and tangent to the circumference of the driving wheel 7. A groove 151 is provided on the upper surface of the boss 15 below the blade 42. When the steel bar is driven by the driving wheel 7 and transmitted to the bottom of the blade 42, the cutting device drives the blade 42 to cut the steel bar. The function of the groove is to accommodate the blade to ensure that the steel bar is completely cut and prevent the blade from being damaged.

[0032] A discharge port 16 is provided on the bottom plate of the transmission channel, and the discharge port 16 is located downstream of the cutting device. A downwardly inclined feed plate 161 is installed below the discharge port 16; after the cutting device cuts the steel bar, one end of the cut steel bar is located above the discharge port 16 and falls into the discharge port 16, and slides out of the steel bar cutting device along the feed plate 161.

[0033] A limit plate 5 for limiting the length of the cut steel bar is installed above the discharge port 16, and a visual sensor (the visual sensor is not shown) is installed on the limit plate 5, which is electrically connected to a controller, which is electrically connected to the motor 71, and which is electrically connected to the cutting device; an inverted U-shaped clamping plate 51 for clamping the baffle from top to bottom is provided at both ends of the limit plate 5, and a horizontally arranged chute 14 is provided on the side plate 11, and both ends of the clamping plate 51 overlap with the chute 14, and the two ends of the clamping plate 51 are connected by two sets of bolts 52. The two ends of the clamping plate 51 are connected by bolts 52, and the adjusting bolts 52 can make the two ends of the clamping plate 51 close together, clamping the baffle, thereby fixing the position of the clamping plate 51 and further fixing the position of the limit plate 5; and two sets of bolts 52 are fixed on one clamping plate 51, and the screws of the two sets of bolts 52 all pass through the slide 14, so that when the steel bar hits the limit plate 5, the limit plate cannot make a circular flip, thereby improving the stability of the limit plate 5 in the transmission channel. In this solution, when the steel bar is transmitted against the limit plate 5, the visual sensor receives a signal and transmits it to the controller, the controller controls the motor 71 to stop working, and controls the cutting device to work, the blade 42 falls to cut the steel bar, and the cut steel bar falls out along the discharge port 16. If the visual sensor does not detect that the limit plate 5 is in contact with the steel bar, it transmits a signal to the controller, the controller controls the cutting device to stop working and reset the blade 42, and then controls the motor 71 to start working and continue to transmit the uncut steel bar.

[0034] From the above, it can be seen that the specific implementation of the present utility model is as follows:

[0035] The motor 71 starts, and the driving shaft rotates, driving several steel bars to enter from one end of the transmission channel and move toward the discharge port 16. Among the several steel bars, the movement mode of each steel bar is as follows: a single steel bar passes through several adjacent shafts set on the through grooves 13. The gaps between the several shafts constrain the transmission direction of the steel bars, ensuring that the steel bars are always parallel to the preset transmission direction during the transmission process, thereby preventing the steel bars from tilting. When the steel bars move to against the surface of the limit plate 5, the visual sensor receives the signal and transmits it to the controller. The controller controls the motor 71 to stop working and controls the cutting device to work. The blade 42 falls to cut the steel bars. The cut steel bars fall out along the discharge port 16. If the visual sensor does not detect that the limit plate 5 is in contact with the steel bars, it transmits a signal to the controller. The controller controls the cutting device to stop working and resets the blade 42, and then controls the motor 71 to start working to continue transmitting the uncut steel bars.

[0036] The device can ensure that when the cutting device cuts a number of steel bars, the length of the steel bars cut off is consistent, and at the same time it can avoid the tail swing phenomenon causing the steel bars to bounce up and injure the workers.

[0037] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A steel bar cutting device, comprising a transmission channel for transmitting steel bars and a cutting device for cutting the steel bars, wherein the transmission channel comprises a bottom plate and baffles arranged on both sides of the bottom plate, the bottom plate is provided with a plurality of through slots, and a plurality of shafts for limiting the transmission direction of the steel bars are arranged in the through slots, and the upper ends of the shafts extend upwardly out of the through slots.

2. A steel bar cutting device according to claim 1, characterized in that: The portion of the upper end of the shaft extending out of the through slot is rotatably sleeved with a rotating drum.

3. A steel bar cutting device according to claim 2, characterized in that: An adjustment device is provided under each of the through slots, and the adjustment device includes a mounting plate, mounting arms are fixed at both ends of the mounting plate, and the end of the mounting arm away from the mounting plate is fixedly connected to the side plate. A plurality of mounting slots corresponding to the plurality of shaft rods are provided on the upper surface of the mounting plate, and the lower end of the shaft rod extends out of the through slot and is inserted into the mounting slot.

4. A steel bar cutting device according to claim 3, characterized in that: A plurality of rollers are rotatably connected to the bottom plate, and the axes of the rollers are perpendicular to the direction of steel bar transmission.

5. The steel bar cutting device according to claim 4, characterized in that: A driving device for driving the transmission of steel bars is also installed on the base plate. The driving device includes a driving wheel whose axis is parallel to the axis of the roller. The driving wheel and the roller have the same diameter and the axis height is consistent. Driving shafts are coaxially arranged at both ends of the driving wheel. The ends of the two driving shafts that are away from each other pass through the baffle and are rotatably connected to the baffle. One end of one of the driving shafts that passes through the baffle is fixedly connected to a motor, and the motor is fixed to the outer side of the baffle.

6. The steel bar cutting device according to claim 5, characterized in that: The cutting device includes a blade that can move vertically. A bottom plate is located below the blade and is fixed with a boss. The upper surface of the boss is horizontally arranged and tangent to the peripheral surface of the driving wheel. The upper surface of the boss is located below the blade and is provided with a groove.

7. The steel bar cutting device according to claim 6, characterized in that: A protective device is also provided on both sides of the cutting device on the transmission channel. The protective device includes a baffle rod arranged above the steel bar. A plurality of corresponding through holes are provided on the two baffles. The baffle rod passes through the two corresponding through holes, and one end of the baffle rod is upset and the other end is threadedly connected with a nut.

8. The steel bar cutting device according to claim 7, characterized in that: A discharge port is provided on the bottom plate of the transmission channel, and the discharge port is located in the downstream direction of the cutting device. A feeding plate inclined downward is installed below the discharge port.

9. The steel bar cutting device according to claim 8, characterized in that: A limit plate for limiting the length of the cut steel bars is installed above the discharge port, and an inverted U-shaped clamp is provided at both ends of the limit plate for clamping the baffle from top to bottom. A transverse sliding groove is provided on the side plate, and both ends of the clamp overlap with the sliding groove, and the two ends of the clamp are fixed together by two sets of bolts, and the bolts include screws, which pass through the sliding groove.

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