Large arc forming steel bar production equipment

Abstract

This utility model belongs to the field of steel bar processing technology and discloses a large-arc forming steel bar production equipment. It includes a sawing conveyor, a transition material rack conveyor, a transverse conveyor, a stepping feeding device, and a bending machine arranged sequentially along a first direction. The output end of the sawing conveyor is higher than the input end of the transition material rack conveyor and connected via a first inclined plate. The output end of the transition material rack conveyor is higher than the input end of the transverse conveyor and connected via a second inclined plate. The output end of the transverse conveyor is higher than the input end of the stepping feeding device and connected via a third inclined plate. The output end of the stepping feeding device is higher than the input end of the bending machine and connected via a fourth inclined plate. The raw steel bar is conveyed and fed into the bending machine under its own gravity. The bending machine is used to bend the raw steel bar into a large-arc forming steel bar. This utility model has a high degree of automation and high production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, and in particular to a large arc forming steel bar production equipment. Background Technology

[0002] The production and processing of circular arc-shaped reinforcing bars generally refers to bending reinforcing bars with a bending radius R in the range of 10mm-100mm. When the radius of the bending angle R is greater than 100mm, it is called a large circular arc-shaped reinforcing bar, such as... Figure 1 As shown, the large arc-shaped steel bar 100 includes two R-angle arcs and bent portions 101 at both ends. The processing size of the large arc-shaped steel bar 100 is relatively large, with a bending radius greater than 100mm. It is not easy to position and bend it during the forming process. In the existing technology, the production mode of the large arc-shaped steel bar 100 is to manually cut a certain length of steel bar on a fixed-length cutting machine, manually place the straight steel bar in a bending machine to bend each part, and then manually pick up the large arc-shaped steel bar 100. This processing method has disadvantages such as high labor intensity, low efficiency, high processing cost, many safety hazards, and low degree of automation. Utility Model Content

[0003] The purpose of this utility model is to provide a large arc forming steel bar production equipment for automatic production of large arc forming steel bars, which has the advantages of high automation, saving time and reducing the labor intensity of workers.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a large arc-shaped steel bar production equipment, including a sawing conveyor, a transition material rack conveyor, a transverse conveyor, a stepping feeding device, and a bending machine arranged sequentially along a first direction. The output end of the sawing conveyor is higher than the input end of the transition material rack conveyor and is connected through a first inclined plate. The raw steel bar enters the transition material rack conveyor under its own gravity. The output end of the transition material rack conveyor is higher than the input end of the transverse conveyor and is connected through a second inclined plate. Multiple raw steel bars enter the transverse conveyor under their own gravity. The output end of the transverse conveyor is higher than the input end of the stepping feeding device and is connected through a third inclined plate. The raw steel bars enter the stepping feeding device under their own gravity. The output end of the stepping feeding device is higher than the input end of the bending machine and is connected through a fourth inclined plate. A single raw steel bar enters the bending machine sequentially through the fourth inclined plate. The bending machine includes two standard bending main units and two arc bending main units. The bending machine is used to bend the raw steel bars into large arc-shaped steel bars.

[0006] In some embodiments, the standard bending machine includes a first central shaft that is capable of extending and retracting along its own axial direction to avoid or bend the two ends of the raw material steel bar.

[0007] In some embodiments, the arc bending host includes a second bending shaft that is capable of extending and retracting along its own axial direction to bend the arc segment of the raw material steel bar in a forward or reverse direction.

[0008] In some embodiments, the bending machine further includes:

[0009] A bending frame, two standard bending main units and two arc bending main units are arranged on the bending frame along a second direction, with the two standard bending main units located on either side of the two arc bending main units; the second direction is perpendicular to the first direction.

[0010] A pressing device is provided on the bending frame and located between the two arc bending main units. The pressing device is used to press and fix the raw material steel bar on the bending frame.

[0011] An alignment device is provided at one end of the bending frame, and one end of the raw material steel bar can abut against the alignment device.

[0012] In some embodiments, the positions of the two standard bending hosts and the two circular arc bending hosts on the bending frame along the second direction are adjustable.

[0013] In some embodiments, the transition rack conveying device includes a plurality of first chain assemblies spaced apart along the second direction, with a plurality of baffles spaced apart on the first chain assemblies, and the height of the input end of the transition rack conveying device is lower than the height of the output end of the transition rack conveying device.

[0014] In some embodiments, the transverse conveying device includes a plurality of sets of second chain assemblies spaced apart along the second direction, the plurality of second chain assemblies being staggered from the plurality of first chain assemblies along the second direction, and the plurality of raw material steel bars being able to be laid flat on the plurality of sets of second chain assemblies when conveyed on the transverse conveying device.

[0015] In some embodiments, the stepping feeding device includes:

[0016] The first step group has multiple first step surfaces arranged sequentially from bottom to top along the first direction;

[0017] The second step group has multiple second step surfaces arranged sequentially from bottom to top along the first direction. The multiple first step surfaces and multiple second step surfaces are staggered along the first direction and correspond one-to-one. When the first step surface or second step surface at the lower position rises and connects with the second step surface or first step surface at the higher position, the raw material steel bar slides from the first step surface or second step surface into the second step surface or first step surface, and the raw material steel bar advances one feeding distance.

[0018] In some embodiments, the tilt angles of the first inclined plate, the second inclined plate, the third inclined plate, and / or the fourth inclined plate are adjustable.

[0019] In some embodiments, the large arc-shaped steel bar production equipment further includes a robotic gripper and a finished product storage rack. The robotic gripper is located between the bending machine and the finished product storage rack, and is configured to remove the large arc-shaped steel bar from the bending machine and place it into the finished product storage rack.

[0020] The beneficial effects of this utility model are:

[0021] The large arc-shaped steel bar production equipment provided by this utility model realizes an automated integrated production line from raw steel bar cutting and feeding to bending and forming. No manual intervention is required during the production process, reducing the labor intensity of workers. The raw steel bar is automatically bent into large arc-shaped steel bars through a sawing conveyor, a transition material rack conveyor, a transverse conveyor, a stepping feeding device, and a bending machine. It has a high degree of automation, saves time, and has high production efficiency. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the large arc-shaped reinforcing bar involved in this utility model;

[0023] Figure 2 This is a top view of the large arc forming steel bar production equipment provided in this embodiment of the utility model;

[0024] Figure 3 This is a front view of the large arc forming steel bar production equipment provided in this embodiment of the utility model;

[0025] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;

[0026] Figure 5 This is a schematic diagram of the bending machine in the large arc forming steel bar production equipment provided in this embodiment of the utility model;

[0027] Figure 6This is a schematic diagram of the standard bending host in the large arc forming steel bar production equipment provided in this embodiment of the utility model;

[0028] Figure 7 This is a schematic diagram of the arc bending host in the large arc forming steel bar production equipment provided in this embodiment of the utility model.

[0029] In the picture:

[0030] 100. Large arc-shaped reinforcing bar; 101. Bending section;

[0031] 1. Sawing and conveying device; 11. First inclined plate;

[0032] 2. Transition material rack conveyor device; 21. Second inclined plate; 22. First chain assembly; 23. Baffle;

[0033] 3. Lateral conveying device; 31. Third inclined plate; 32. Second chain assembly;

[0034] 4. Stepping feeding device; 41. Fourth inclined plate; 42. First step group; 43. Second step group;

[0035] 5. Bending machine; 51. Standard bending main unit; 511. First central shaft; 512. First bending shaft; 52. Arc bending main unit; 521. Second central shaft; 522. Second bending shaft; 523. Support rod; 524. Mounting position; 525. Machine base; 53. Bending frame; 54. Pressing device; 55. Alignment device;

[0036] 6. Robotic gripping device;

[0037] 7. Finished product storage rack. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] This utility model provides a large arc-shaped rebar production equipment for forming rebar such as... Figure 1 The large circular arc formed steel bar 100 is shown with a bending radius R of 100mm-400mm.

[0043] like Figures 2-3 As shown, the large arc forming steel bar production equipment includes a sawing conveyor 1, a transition material rack conveyor 2, a transverse conveyor 3, a stepping feeding device 4, and a bending machine 5 arranged sequentially along the first direction (X direction). The output end of the sawing conveyor 1 is higher than the input end of the transition material rack conveyor 2 and is connected through a first inclined plate 11. The raw steel bar enters the transition material rack conveyor 2 under its own gravity. The output end of the transition material rack conveyor 2 is higher than the input end of the transverse conveyor 3 and is connected through a second inclined plate 21. Multiple raw steel bars enter the transverse conveyor 3 under its own gravity. The output end of the transverse conveyor 3 is higher than the input end of the stepping feeding device 4 and is connected through a third inclined plate 31. The raw steel bars enter the stepping feeding device 4 under its own gravity. The height of the output end of the stepping feeding device 4 is higher than the input end of the bending machine 5 and is connected through a fourth inclined plate 41. A single raw steel bar enters the bending machine 5 sequentially through the fourth inclined plate 41. The bending machine 5 includes two standard bending main units 51 and two arc bending main units 52. The bending machine 5 is used to bend the raw steel bars into large arc forming steel bars 100.

[0044] The sawing conveyor 1 is located at the front end of the transition rack conveyor 2. The sawing conveyor 1 cuts and conveys multiple raw material steel bars of a certain length according to the specifications of the large arc-shaped steel bar 100, and then flips these multiple raw material steel bars onto the transition rack conveyor 2, satisfying the production needs of large arc-shaped steel bars 100 of different specifications. The transition rack conveyor 2 is located at the front end of the transverse conveyor 3, which is located at the front end of the stepping feeding device 4. The transition rack conveyor 2 is used to automatically convey multiple raw material steel bars. The transverse conveyor 3 conveys multiple raw material steel bars in a plane. During the conveying process, the multiple raw material steel bars are laid flat on the conveying plane of the transverse conveyor 3, facilitating the stepping feeding device 4 to obtain the raw material steel bars. The sawing conveyor 1 can use existing equipment, which cuts straight steel bars to a fixed length to obtain raw material steel bars. The raw material steel bars are conveyed along the first direction and slide down onto the transition rack conveyor 2 at the first inclined plate 11. The height of the input end of the transition material rack conveyor 2 is lower than the height of the output end. That is, the transition material rack conveyor 2 is inclined upward in the first direction to convey the raw material steel bars. This is conducive to the raw material steel bars adjusting their posture under their own gravity during the conveying process, reducing the overlap and crossover between the raw material steel bars. When the raw material steel bars are conveyed to the transverse conveyor 3, the raw material steel bars slide into the transverse conveyor 3 along the second inclined plate 21 and gradually spread flat on the transverse conveyor 3. Of course, the flat conveying can be achieved by setting auxiliary raw material steel bars such as reinforcing bars on the transverse conveyor 3. The raw material steel bars slide down to the step feeding device 4 along the third inclined plate 31 at the output end of the transverse conveyor 3. The step feeding device 4 can realize the step feeding of individual raw material steel bars, realize the feeding of individual raw material steel bars to the bending machine 5, and realize the forming.

[0045] The large arc-shaped steel bar production equipment provided by this utility model realizes an automated integrated production line from raw steel bar cutting and feeding to bending and forming. No manual intervention is required in the production process, reducing the labor intensity of workers. The raw steel bar is automatically bent and formed into a large arc-shaped steel bar 100 through the sawing conveyor 1, the transition material rack conveyor 2, the transverse conveyor 3, the stepping feeding device 4 and the bending machine 5. It has a high degree of automation, saves time and has high production efficiency.

[0046] In some embodiments, the standard bending host 51 includes a first central shaft 511, which is capable of extending and retracting along its own axial direction to avoid or bend the two ends of the raw material steel bar.

[0047] like Figure 6As shown, the standard bending machine 51 includes a first central shaft 511 and a first bending shaft 512. When the first bending shaft 512 rotates around the first central shaft 511, it bends the bent portions 101 at both ends of the raw material steel bar. During the production and processing of the large arc-shaped steel bar 100, two bent portions 101 are first bent at both ends of the raw material steel bar, and then two R-angle arc portions are bent in the middle. Therefore, in the prior art, after the bent portions 101 at both ends of the raw material steel bar are completed, the raw material steel bar needs to be manually moved to detach from the first central shaft 511 and the first bending shaft 512 of the standard bending machine 51, so that the raw material steel bar can be bent in the next step of arc bending. In this embodiment, by setting the first central shaft 511 to extend and retract along its own axial direction, after the bent portion 101 is bent, the first central shaft 511 retracts, at which point the restriction on the bent portion 101 can be released, and the arc bending operation can be performed directly, thus achieving automatic two-step bending without manual intervention. The axial extension and retraction of the first central shaft 511 can be driven and controlled by a cylinder to achieve automatic extension and retraction. Furthermore, the cylinder facilitates the synchronous extension and retraction of the first central shaft 511 on both standard bending machines 51. In some embodiments, the first bending shaft 512 can extend and retract synchronously with the first central shaft 511.

[0048] In some embodiments, the arc bending host 52 includes a second bending shaft 522, which is capable of extending and retracting along its own axial direction to bend the arc segment of the raw material steel bar in the forward or reverse direction.

[0049] like Figure 7 The circular arc bending host 52 includes a second bending shaft 522 and a second central shaft 521. When the second bending shaft 522 rotates around the second central shaft 521, it realizes the circular arc bending of the raw material steel bar. The two circular arc bending hosts 52 move synchronously, and the raw material steel bar is bent into shape in one step. Figure 7As shown, the second bending shaft 522 is mounted on the support rod 523, which is coaxially installed with the second central shaft 521. The support rod 523 can rotate around the second central shaft 521. Multiple mounting positions 524 are provided along the length of the support rod 523, allowing the second bending shaft 522 to be installed at any of these positions for adjustment based on the radius (R) angle of the large arc-shaped reinforcing bar 100. The contraction of the second bending shaft 522 along its axial direction can be achieved either by mounting a linear drive component on the support rod 523 to connect and install the second bending shaft 522, or by mounting the linear drive component on the base 525 of the arc bending host 52 to connect and install the rotating shaft of the support rod 523. The support rod 523 drives the second bending shaft 522 to move synchronously in and out of the machine. The extension and retraction of the second bending shaft 522 allows for switching between forward and reverse bending of the raw material reinforcing bar, meeting various production and processing needs. The second central shaft 521 and the base 525 are detachably mounted and can be replaced according to the bending parameters.

[0050] In some embodiments, the bending machine 5 further includes a bending frame 53, a pressing device 54, and an alignment device 55. Two standard bending main units 51 and two arc bending main units 52 are disposed on the bending frame 53 along a second direction, with the two standard bending main units 51 disposed on both sides of the two arc bending main units 52. The second direction (Y direction) is perpendicular to the first direction. The pressing device 54 is disposed on the bending frame 53 and located between the two arc bending main units 52. The pressing device 54 is used to press and fix the raw material steel bar on the bending frame 53. The alignment device 55 is disposed at one end of the bending frame 53, and one end of the raw material steel bar can abut against the alignment device 55.

[0051] like Figure 5As shown, the bending machine 5 in this embodiment is a four-head bending machine 5, including two sets of large arc bending main units 52 and two sets of standard bending main units 51. Along the second direction, an automatic alignment device 55 is located at one end of the bending machine frame 53, pushing the ends of the raw material steel bars to the same position for alignment, ensuring product consistency. Then, the raw material steel bars are clamped by the clamping device 54. At this time, the standard bending main unit 51 and the arc bending main unit 52 are started, and the raw material steel bars are bent and shaped according to the set parameters. The arc bending main unit 52 and the standard bending main unit 51 can not only meet the production of bending of the large arc shaped steel bars 100 in the beam factory, but also the bending mold of the arc bending main unit 52 can be replaced with a standard mold and used as a standard bending main unit 51. Depending on the specifications of the bent steel bars, it can be used as a set of two-head bending machines 5, two sets of two-head bending machines 5, or a set of four-head bending machines 5, to meet the bending needs of multiple specifications of steel bars, greatly improving the processing range and production efficiency of the production line. The advantage of the four-head bending machine 5 is that it reduces the travel time of the bending main unit and greatly improves the bending production efficiency. The alignment device 55 and the clamping device 54 can be controlled by cylinders, or other existing devices can be used, whichever is more specific.

[0052] In some embodiments, the positions of the two standard bending main units 51 and the two arc bending main units 52 on the bending frame 53 along a second direction are adjustable. The free movement of the standard bending main units 51 and the arc bending main units 52 on the bending frame 53 improves the production range and efficiency of the bending machine 5. The movement of the standard bending main units 51 and the arc bending main units 52 can employ a gear and rack transmission mechanism or similar method.

[0053] In some embodiments, the transition rack conveying device 2 includes multiple sets of first chain assemblies 22 spaced apart along a second direction, with multiple baffles 23 spaced apart on the first chain assemblies 22, and the height of the input end of the transition rack conveying device 2 is lower than the height of the output end of the transition rack conveying device 2.

[0054] like Figure 2 and Figure 3 As shown, the transition material rack conveying device 2 adopts an inclined frame, on which multiple sets of first chain assemblies 22 are set. Multiple baffles 23 are set at certain intervals on the chain of each set of first chain assemblies 22. The baffles 23 can be T-shaped, etc. The first chain assembly 22 conveys raw material steel bars from low to high along the first direction. Multiple raw material steel bars can be conveyed simultaneously between two adjacent baffles 23. The inclined frame realizes the adjustment of the height difference between the sawing conveying device 1 and the transverse conveying device 3. The inclination angle of the inclined frame is adjustable. The first inclined plate 11 and the second inclined plate 21 are set to correspond to the gap of multiple first chain assemblies 22, which are used to support and connect raw material steel bars, simplifying the use of the robotic arm, reducing costs, and realizing automatic conveying of raw material steel bars.

[0055] In some embodiments, the transverse conveying device 3 includes multiple sets of second chain assemblies 32 spaced apart along a second direction. The multiple second chain assemblies 32 are staggered from the multiple first chain assemblies 22 along the second direction, and the multiple raw material steel bars can be laid flat on the multiple sets of second chain assemblies 32 when conveyed on the transverse conveying device 3.

[0056] For example Figure 2 and Figure 3 The transverse conveying device 3 generally adopts a horizontal conveying plane, with multiple sets of second chain assemblies 32 evenly spaced and capable of storing a certain amount of raw steel bars for flat conveying, so that the input end of the stepping feeding device 4 conveys one raw steel bar at a time. Figure 2 As shown, multiple first chain assemblies 22 and multiple second chain assemblies 32 are staggered along the second direction. Under the action of its own gravity, the raw material steel bars slide from the first chain assembly 22 along the second inclined plate 21 into the second chain assembly 32, which is conducive to the adjustment and separation of multiple raw material steel bars, so that the single raw material steel bar at the end of the second chain assembly 32 can smoothly enter the stepping feeding device 4.

[0057] In some embodiments, the stepping feeding device 4 includes a first step group 42 and a second step group 43. The first step group 42 is provided with a plurality of first step surfaces from bottom to top along a first direction. The second step group 43 is provided with a plurality of second step surfaces from bottom to top along the first direction. The plurality of first step surfaces and the plurality of second step surfaces are staggered along the first direction and correspond one to one. When the first step surface or second step surface at the lower position rises and connects with the second step surface or first step surface at the higher position, the raw material steel bar slides from the first step surface or second step surface into the second step surface or first step surface, and the raw material steel bar steps forward one feeding distance.

[0058] like Figure 3 and Figure 4As shown, in this embodiment, the positions of the first step group 42 and the second step group 43 can be interchanged. The following explanation uses the example of the first step group 42 being fixed and the second step group 43 being movable to illustrate the step feeding principle of the step feeding device 4. The first step group 42 has multiple first step surfaces. By adjusting the installation angle of the first step group 42, an angle is formed between the multiple first step surfaces and the horizontal plane, i.e., the first step surface is an inclined plane. The raw material steel bars located at the ends of the first step surfaces can slide into the root of the first step surface under their own gravity. The second step group 43 can move up and down; the specific driving method is not limited in this embodiment. The second-stage group of 43 pieces has the same installation angle as the first-stage group of 42 pieces but is staggered. When the second-stage group of 43 pieces slides relative to the first-stage group of 42 pieces, multiple second-stage surfaces on the second-stage group of 43 pieces align with multiple first-stage surfaces one-to-one. The raw steel bars slide from the second-stage surfaces into the first-stage surfaces under their own gravity, achieving one-step feeding. The first second-stage surface facing the transverse conveying device 3 is used to receive the raw steel bars. By setting the width of the second-stage surface or setting the staggered distance between the second-stage surface and the first-stage surface, one raw steel bar can be fed onto the corresponding first-stage surface each time the second-stage surface rises. Thus, the stepping feeding device 4, through its stepped structure, conveys and slides a single raw steel bar to the end position of the bending frame 53 of the bending machine 5. Figure 3 As shown, the raw steel bars slide down onto the bending frame 53 of the bending machine 5 under their own weight via the fourth inclined plate 41. The raw steel bars slide down to the lowest position of the bending frame 53 and stop, where they are aligned at the ends by the alignment device 55. Compared with the prior art of manual feeding and alignment, this embodiment significantly improves feeding efficiency. Compared with feeding raw steel bars by gripping them with a robotic arm, it reduces costs, simplifies the equipment structure, simplifies the feeding control process, and occupies less space.

[0059] In some embodiments, the tilt angles of the first inclined plate 11, the second inclined plate 21, the third inclined plate 31, and / or the fourth inclined plate 41 are adjustable. Specifically, the tilt angle can be adjusted by rotating the first inclined plate 11, the second inclined plate 21, the third inclined plate 31, and / or the fourth inclined plate 41 through a rotation drive, thereby reducing the installation accuracy between the front end device and the rear end device and facilitating the adjustment of the height difference between the front end device and the rear end device.

[0060] In some embodiments, the large arc-shaped steel bar production equipment further includes a robotic gripper 6 and a finished product storage rack 7. The robotic gripper 6 is located between the bending machine 5 and the finished product storage rack 7. The robotic gripper 6 is configured to remove the large arc-shaped steel bar 100 from the bending machine 5 and place it into the finished product storage rack 7.

[0061] like Figure 2 and Figure 3 The robotic gripper 6 is mounted on the gantry frame, and there are generally two of them. The finished product storage rack 7 is located on the side of the bending machine 5 away from the stepping feeding device 4 and below the gantry frame. The robotic gripper 6 can reciprocate between the bending machine 5 and the finished product storage rack 7 to grip the large arc-shaped steel bar 100. When the raw steel bar falls onto the bending machine frame 53, the robotic gripper 6 can grip the raw steel bar and place it in the working position of the standard bending host 51 and the arc bending host 52, so that one end of the raw steel bar abuts against the alignment device 55 to achieve positioning. After the clamping device 54 fixes the raw steel bar, the bending operation begins. After bending and forming, the robotic gripper 6 grips the formed large arc-shaped steel bar 100 again. At this time, the clamping device 54 releases the large arc-shaped steel bar 100, and the robotic gripper 6 automatically transports the gripped large arc-shaped steel bar 100 into the finished product storage rack 7. The steel bar is transported, bent, and gripped repeatedly, realizing the automated production of the bending production line of the large arc-shaped steel bar 100.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A large arc-shaped steel bar production equipment, characterized in that, It includes a sawing conveyor (1), a transition material rack conveyor (2), a transverse conveyor (3), a stepping feeding device (4), and a bending machine (5) arranged sequentially along the first direction; The output end of the sawing conveyor (1) is higher than the input end of the transition material rack conveyor (2) and is connected through the first inclined plate (11). The raw material steel bar enters the transition material rack conveyor (2) under its own gravity. The output end of the transition material rack conveying device (2) is higher than the input end of the transverse conveying device (3) and is connected through the second inclined plate (21). Multiple raw material steel bars enter the transverse conveying device (3) under their own gravity. The output end of the transverse conveying device (3) is higher than the input end of the step feeding device (4) and is connected through the third inclined plate (31). The raw material steel bar enters the step feeding device (4) under its own gravity. The output end of the step feeding device (4) is higher than the input end of the bending machine (5) and is connected through the fourth inclined plate (41). The individual raw material steel bars enter the bending machine (5) sequentially through the fourth inclined plate (41). The bending machine (5) includes two standard bending main units (51) and two circular arc bending main units (52), and the bending machine (5) is used to bend the raw material steel bars into large circular arc shaped steel bars (100).

2. The large arc forming steel bar production equipment according to claim 1, characterized in that, The standard bending host (51) includes a first central shaft (511) which is capable of extending and retracting along its own axial direction to avoid or bend the two ends of the raw material steel bars.

3. The large arc forming steel bar production equipment according to claim 2, characterized in that, The arc bending host (52) includes a second bending shaft (522), which is capable of extending and retracting along its own axial direction to bend the arc segment of the raw material steel bar in the forward or reverse direction.

4. The large arc forming steel bar production equipment according to claim 1, characterized in that, The bending machine (5) also includes: A bending frame (53) is provided on the bending frame (53) along a second direction, with two standard bending main units (51) and two arc bending main units (52) disposed on both sides of the two arc bending main units (52); the second direction is perpendicular to the first direction. A pressing device (54) is provided on the bending frame (53) and located between the two arc bending main machines (52). The pressing device (54) is used to press and fix the raw material steel bars on the bending frame (53). Alignment device (55) is provided at one end of the bending frame (53), and one end of the raw material steel bar can abut against the alignment device (55).

5. The large arc forming steel bar production equipment according to claim 4, characterized in that, The positions of the two standard bending machines (51) and the two arc bending machines (52) on the bending frame (53) along the second direction are adjustable.

6. The large arc forming steel bar production equipment according to claim 4, characterized in that, The transition material rack conveying device (2) includes multiple sets of first chain assemblies (22) spaced apart along the second direction. Multiple baffles (23) are spaced apart on the first chain assemblies (22). The height of the input end of the transition material rack conveying device (2) is lower than the height of the output end of the transition material rack conveying device (2).

7. The large arc forming steel bar production equipment according to claim 6, characterized in that, The transverse conveying device (3) includes multiple sets of second chain assemblies (32) spaced apart along the second direction. The multiple sets of second chain assemblies (32) are staggered from the multiple sets of first chain assemblies (22) along the second direction. When the multiple sets of raw material steel bars are conveyed on the transverse conveying device (3), they can be laid flat on the multiple sets of second chain assemblies (32).

8. The large arc forming steel bar production equipment according to claim 1, characterized in that, The stepping feeding device (4) includes: The first step group (42) has a plurality of first step surfaces arranged sequentially from bottom to top along the first direction; The second step group (43) has multiple second step surfaces arranged sequentially from bottom to top in the first direction. The multiple first step surfaces and multiple second step surfaces are staggered along the first direction and correspond one to one. When the first step surface or the second step surface in the lower position rises and connects with the second step surface or the first step surface in the higher position, the raw material steel bar slides from the first step surface or the second step surface into the second step surface or the first step surface, and the raw material steel bar advances one feeding distance.

9. The large arc forming steel bar production equipment according to claim 1, characterized in that, The tilt angles of the first inclined plate (11), the second inclined plate (21), the third inclined plate (31) and / or the fourth inclined plate (41) are adjustable.

10. The large arc forming steel bar production equipment according to claim 4, characterized in that, It also includes a robotic gripper (6) and a finished product storage rack (7). The robotic gripper (6) is located between the bending machine (5) and the finished product storage rack (7). The robotic gripper (6) is configured to grip the raw material steel bar from the bending machine frame (53) and place the raw material steel bar in the working position of the standard bending host (51) and the arc bending host (52), and to remove the large arc forming steel bar (100) from the bending machine (5) and put it into the finished product storage rack (7).

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