Automatic grabbing type feeding device for steel bar bending machine and steel bar bending machine components

Abstract

The present invention discloses an automatic grabbing type feeding device and a steel bar bending machine assembly for a steel bar bending machine, which belongs to the technical field of building material processing, and is designed to solve the problems of high labor intensity caused by the existing manual handling of steel bars. The automatic grabbing type feeding device for a steel bar bending machine of the present invention comprises a mobile driving device for driving the feeding device to move to a set position, a fixed base connected to the mobile driving device, an electromagnet mounting seat connected to the fixed base, an electromagnet for sucking the steel bars to be loaded, and at least one group of grabbing devices, the grabbing device comprises two clamping claws respectively arranged on both sides of the electromagnet, and the two clamping claws can move toward each other until they hold the steel bars to be loaded sucked on the electromagnet. The automatic grabbing type feeding device and the steel bar bending machine assembly for a steel bar bending machine of the present invention realize the automatic handling of the steel bars to be loaded, and the operation is flexible and fast; the whole machine has a compact structure, is safe and reliable, has a high degree of automation, works smoothly, and has low labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of building material processing, and in particular to an automatic grabbing type feeding device for a steel bar bending machine and a steel bar bending machine component comprising the feeding device. Background Art

[0002] A steel bar bending machine is a mechanical device used to bend steel bars. When the steel bar bending machine is working, the steel bars to be bent need to be fed into the loading position of the steel bar bending machine before the bending process can be carried out.

[0003] At present, it is necessary to manually load the steel bar bending machine, that is, the operator manually moves the steel bars to be bent from the mobile raw material warehouse to the loading position of the steel bar bending machine, which is labor-intensive, time-consuming, and has low product quality and production efficiency. Summary of the invention

[0004] One object of the present invention is to provide an automatic grabbing type feeding device for a steel bar bending machine with low labor intensity.

[0005] Another object of the present invention is to provide a steel bar bending machine assembly with high working efficiency and low labor intensity.

[0006] To achieve this object, on the one hand, the present invention adopts the following technical solutions:

[0007] An automatic gripping feeding device for a steel bar bending machine comprises: a mobile driving device, used to drive the feeding device to move to a set position; a fixed base, connected to the mobile driving device; an electromagnet mounting seat, connected to the fixed base; an electromagnet, used to suck the steel bars to be loaded, the electromagnet being arranged on the electromagnet mounting seat; and at least one set of gripping devices, the gripping device comprising two clamping jaws respectively arranged on both sides of the axis of the electromagnet, the two clamping jaws being able to move toward each other until they hold the steel bars to be loaded sucked on the electromagnet.

[0008] In particular, the grasping device also includes a grasping cylinder and a rack, the rack is connected to the output end of the grasping cylinder; a gear is provided at the top of the clamping jaw, the gear is provided on the clamping jaw mounting seat through a hinge shaft, the rack is meshed with the gear, and when the rack moves back and forth, it can drive the two clamping jaws to open or close.

[0009] Particularly, a one-way bearing is arranged at the bottom end of the clamping jaw, and a one-way rotating hand wheel is sleeved on the outer side of the one-way bearing.

[0010] In particular, a plurality of guide shafts are arranged on the electromagnet mounting seat, and a first direction damping spring is sleeved on the outer side of the guide shaft; the automatic grabbing feeding device for the steel bar bending machine also includes a buffer frame located above the electromagnet mounting seat, one end of the first direction damping spring is connected to the electromagnet mounting seat, and the other end is connected to the buffer frame; the buffer frame is provided with a through hole for allowing the guide shaft to pass through.

[0011] Particularly, an accommodating groove is arranged on the plane of the buffer frame facing the fixed base, and a second direction damping spring is arranged in the accommodating groove.

[0012] In particular, the buffer frame and the fixed base are hinged via a pin shaft, and the buffer frame can rotate around the axis of the pin shaft.

[0013] In particular, the automatic grabbing feeding device for the steel bar bending machine further comprises a detection switch for detecting whether the electromagnet has sucked the steel bar to be fed, and the detection switch is mounted on a detection switch frame.

[0014] In particular, the mobile drive device comprises a mechanical arm and a mobile drive motor, and the mechanical arm is connected to the output end of the mobile drive motor.

[0015] On the other hand, the present invention adopts the following technical solutions:

[0016] A steel bar bending machine assembly includes a raw material bin for loading steel bars to be loaded, a steel bar bending machine for bending the steel bars, and an automatic grabbing feeding device for the steel bar bending machine. The electromagnet and grabbing device of the automatic grabbing feeding device for the steel bar bending machine can deliver the steel bars to be loaded in the raw material bin to the working position of the steel bar bending machine under the drive of a mobile driving device.

[0017] In particular, the raw material bin comprises a bin body, a moving wheel arranged at the bottom of the bin body and a bin main unit for driving the moving wheel to rotate, and the moving wheel is installed on a moving track and can move along the moving track.

[0018] The automatic grabbing feeding device for the steel bar bending machine of the present invention comprises an electromagnet and a grabbing device. The electromagnet is used to magnetically attract the steel bars to be loaded, and two clamping claws of the grabbing device are used to hold the steel bars to be loaded attracted on the electromagnet, thereby realizing automatic transportation of the steel bars to be loaded, and the operation is flexible and fast; the whole machine has a compact structure, is safe and reliable, has a high degree of automation, works smoothly, and has low labor intensity.

[0019] The steel bar bending machine assembly of the present invention includes the above-mentioned automatic grabbing feeding device for the steel bar bending machine. The electromagnet and the grabbing device cooperate to fix the steel bars to be loaded, thereby smoothly and stably transporting the steel bars to be loaded from the raw material bin to the working position of the steel bar bending machine. It is easy to use, has low labor intensity and a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view of a steel bar bending machine assembly provided in a specific embodiment of the present invention;

[0021] Figure 2 is a side view of a steel bar bending machine assembly provided in a specific embodiment of the present invention;

[0022] Figure 3 is a top view of a steel bar bending machine assembly provided in a specific embodiment of the present invention;

[0023] Figure 4 It is a structural schematic diagram of an automatic grabbing type feeding device for a steel bar bending machine provided in a specific embodiment of the present invention;

[0024] Figure 5 yes Figure 4 Middle AA section view;

[0025] Figure 6 yes Figure 4 Middle CC section view;

[0026] Figure 7 is a structural schematic diagram of a grabbing device provided in a specific embodiment of the present invention;

[0027] Figure 8 yes Figure 4 In the middle DD section view, the jaws are in the open state;

[0028] Fig. 9 yes Figure 4 In the middle DD section view, the jaws are in the closed state;

[0029] Fig.10 yes Figure 4 Middle EE section view;

[0030] Fig.11 yes Figure 4 FF section view.

[0031] In the figure:

[0032] 1. Mobile drive device; 2. Fixed base; 3. Electromagnet mounting base; 4. Electromagnet; 6. Buffer frame; 7. Pin shaft; 11. Robot arm; 12. Mobile drive motor; 31. Guide shaft; 32. First direction damping spring; 51. Gripping claw; 52. Grasping cylinder; 53. Rack; 54. Gear; 55. Articulated shaft; 56. One-way bearing; 57. One-way rotating hand wheel; 61. Second direction damping spring; 81. Detection switch; 82. Detection switch frame; 100. Steel bars to be loaded; 201. Bin body; 202. Moving wheel; 203. Bin host; 204. Moving track; 300. Steel bar bending machine. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] This embodiment discloses an automatic grabbing type feeding device for a steel bar bending machine and a steel bar bending machine assembly including the feeding device. Figures 1 to 3 As shown, the rebar bending machine assembly includes a raw material bin for loading the rebars 100 to be loaded, a rebar bending machine 300 for bending the rebars, and an automatic grabbing loading device for the rebar bending machine for transporting the rebars 100 to be loaded in the raw material bin to the rebar bending machine 300.

[0035] The raw material bin includes a bin body 201, a moving wheel 202 arranged at the bottom of the bin body 201, and a bin host 203 for driving the moving wheel 202 to rotate. The moving wheel 202 is installed on a moving track 204 and can move along the moving track 204. When in use, the bin host 203 drives the moving wheel 202 to rotate, and the moving wheel 202 drives the bin body 201 with the steel bars 100 to be loaded to move along the moving track 204 to a position close to the steel bar bending machine 300, so that the steel bar bending machine can grab the steel bars 100 to be loaded and transfer them to the steel bar bending machine 300 using an automatic grabbing loading device.

[0036] like Figures 4 to 11 As shown, the automatic grabbing type feeding device for the steel bar bending machine comprises a mobile driving device 1, a fixed base 2, an electromagnet mounting seat 3, an electromagnet 4 and two groups of grabbing devices. Among them, the mobile driving device 1 is used to drive the feeding device to move to a set position, the fixed base 2 is connected to the mobile driving device 1, the electromagnet mounting seat 3 is connected to the fixed base 2, the electromagnet 4 for sucking the steel bar 100 to be loaded is arranged on the electromagnet mounting seat 3, each group of grabbing devices comprises two clamping jaws 51 respectively arranged on both sides of the axis of the electromagnet 4, the two clamping jaws 51 can move towards each other until they hold the steel bar 100 to be loaded sucked on the electromagnet 4, and the mobile driving device 1 of the automatic grabbing type feeding device for the steel bar bending machine drives the electromagnet 4 and the grabbing device to deliver the steel bar 100 to be loaded in the raw material bin to the working position of the steel bar bending machine 300.

[0037] The automatic grabbing feeding device of the steel bar bending machine uses the magnetic force of the electromagnet 4 to attract the steel bar 100 to be loaded, and then uses the clamping claw 51 of the grabbing device to hold the bottom of the steel bar 100 to be loaded, ensuring that the steel bar 100 to be loaded can be quickly and smoothly delivered to the working position of the steel bar bending machine 300, thereby realizing the automatic feeding of the steel bar bending machine 300, saving time and labor, and having high production efficiency; the placement position of the steel bar 100 to be loaded is more accurate, thereby improving the processing quality of the product after bending.

[0038] The specific structure of the gripping device is not limited, and the clamping claw 51 can hold the bottom of the steel bar 100 to be loaded after the electromagnet 4 sucks the steel bar 100 to be loaded. Figure 4 As well as Figures 7 to 9 As shown, the grasping device also includes a grasping cylinder 52 and a rack 53. The rack 53 is connected to the output end of the grasping cylinder 52. When the output end of the grasping cylinder 52 rotates or moves, it can drive the rack 53 to move back and forth. A gear 54 is provided at the top of the clamping jaw 51. The gear 54 is set on the clamping jaw mounting seat through a hinge shaft 55. The rack 53 is meshed with the gear 54. When the rack 53 moves back and forth, it can drive the two clamping jaws 51 to open or close.

[0039] Specifically, Figure 8 As shown, the grabbing cylinder 52 drives the rack 53 to move downward, and the rack 53 drives the gear 54 to rotate, thereby driving the two clamping jaws 51 to open, leaving space for the electromagnet 4 to absorb the steel bar 100 to be loaded; Fig. 9 As shown, the grabbing cylinder 52 drives the rack 53 to move upward, and the rack 53 drives the gear 54 to rotate, thereby driving the two clamping jaws 51 to close and hold the steel bar 100 to be loaded that has been sucked on the electromagnet 4. In order to solve the problem that the extension direction of the steel bar 100 to be loaded and the extension direction of the electromagnet 4 have an angle, resulting in poor magnetic attraction, the bottom surface of the electromagnet 4 can be designed to be an arc groove along its extension direction. In the process of the electromagnet 4 sucking the steel bar 100 to be loaded, the steel bar 100 to be loaded can automatically deflect in direction, or the fixed base 2 of the loading device can automatically deflect in direction, thereby eliminating the angle between the extension direction of the steel bar 100 to be loaded and the extension direction of the electromagnet 4, ensuring that the magnetic attraction force can be fully applied, and the magnetic attraction effect is better.

[0040] The two groups of grasping devices are respectively installed at the two ends of the electromagnet 4, so that they can firmly hold the two positions of the steel bars 100 to be loaded that are sucked on the electromagnet 4, making the steel bars 100 to be loaded more stable during the transportation process and will not fall off the electromagnet 4 halfway.

[0041] The specific installation method of the grabbing device is not limited. Preferably, the grabbing cylinder 52 is fixedly set at the end of the electromagnet mounting base 3, the rack 53 is connected to the output end of the grabbing cylinder 52 and is located on the extension line of the axis of the electromagnet 4, and the two jaws 51 are symmetrically arranged on the left and right sides of the rack 53. The gear 54 is meshed with the rack 53. When the grabbing cylinder 52 drives the rack 53 to move up and down, the two jaws 51 can open or close.

[0042] On the basis of the above structure, a one-way bearing 56 is provided at the bottom end of the clamping jaw 51, and a one-way rotating hand wheel 57 is sleeved on the outer side of the one-way bearing 56. Due to the function of the one-way bearing 56, the one-way rotating hand wheel 57 can only rotate in one direction (clockwise or counterclockwise). As long as the force direction of the steel bar 100 to be loaded is adjusted to be opposite to the rotation direction of the one-way rotating hand wheel 57 when the clamping jaw 51 embraces the steel bar 100 to be loaded, the clamping jaw 51 can clamp the steel bar 100 to be loaded stably and reliably.

[0043] The outer peripheral wall of the one-way rotating hand wheel 57 is designed to be arc-shaped, and after being embraced, it can fit more closely to the outer peripheral surface of the steel bar 100 to be loaded, so as to have a better fixing effect on the steel bar 100 to be loaded.

[0044] Based on the above structure, Figures 4 to 6 , Figure 10 to Figure 11 As shown, four guide shafts 31 are symmetrically arranged on the electromagnet mounting seat 3, and a first direction damping spring 32 is sleeved on the outer side of each guide shaft 31. A buffer frame 6 is installed above the electromagnet mounting seat 3, and one end of the first direction damping spring 32 is connected to the electromagnet mounting seat 3, and the other end is connected to the buffer frame 6; the buffer frame 6 is provided with a through hole for allowing the guide shaft 31 to pass through.

[0045] In the process of the electromagnet 4 magnetically attracting the steel bar 100 to be loaded, the steel bar 100 to be loaded and the electromagnet 4 will change from being relatively static to being in relative motion at a certain speed, and when the steel bar 100 to be loaded abuts against the bottom surface of the electromagnet 4, the two will return to a relatively static state again. At the moment when the steel bar 100 to be loaded abuts against the bottom surface of the electromagnet 4, the electromagnet 4 and the electromagnet mounting seat 3 will be subjected to a large impact force, and the setting of the first direction damping spring 32 and the buffer frame 6 can play a good buffering role. Specifically, when the electromagnet 4 is subjected to an impact force, the first direction damping spring 32 contracts or stretches, and the distance between the electromagnet mounting seat 3 and the buffer frame 6 becomes smaller or larger, which dissipates the motion potential energy of the steel bar 100 to be loaded and prevents the electromagnet 4 and the electromagnet mounting seat 3 from being damaged by the impact force.

[0046] On the basis of the above structure, a receiving groove is provided on the plane of the buffer frame 6 facing the fixed base 2, and a second direction damping spring 61 is provided in the receiving groove. The second direction damping spring 61 is used to reduce the impact generated by the external force, so as to ensure that the steel bar 100 to be loaded can be quickly and smoothly delivered to the working position of the steel bar bending machine 300. The first direction damping spring 32 and the second direction damping spring 61 have different expansion and contraction directions, and the two can be perpendicular to each other or at an acute angle, which can be designed according to the specific usage.

[0047] The specific shape, number and location of the accommodating groove are not limited, as long as it can save time and effort to install the second direction damping spring 61. Preferably, three accommodating grooves are arranged at equal intervals near the edges of both ends of the buffer frame 6, which has the best effect on mitigating the impact force.

[0048] On the basis of the above structure, the buffer frame 6 and the fixed base 2 are hinged by the pin shaft 7, and the buffer frame 6 can rotate around the axis of the pin shaft 7. In the process of the electromagnet 4 magnetically attracting the steel bar 100 to be loaded, the impact force generated by the steel bar 100 to be loaded on the electromagnet 4 may deviate from the center of the electromagnet mounting seat 3 and the buffer frame 6. At this time, the buffer frame 6 will rotate around the pin shaft 7, thereby eliminating the impact damage of the steel bar 100 to the electromagnet mounting seat 3 and the buffer frame 6.

[0049] Based on the above structure, Figure 4 and Figure 6 As shown, the automatic grabbing feeding device for the steel bar bending machine also includes a detection switch 81 for detecting whether the electromagnet 4 has sucked the steel bar 100 to be loaded, and the detection switch 81 is installed on the detection switch frame 82. After the detection switch 81 confirms that the electromagnet 4 has sucked the steel bar 100 to be loaded, the grabbing cylinder 52 is started, and the two clamping jaws 51 move relative to each other to hold the steel bar 100 to be loaded, ensuring the stable transportation of the steel bar 100 to be loaded.

[0050] On the basis of the above structure, the mobile drive device 1 includes a mechanical arm 11 and a mobile drive motor 12, and the mechanical arm 11 is connected to the output end of the mobile drive motor 12. When there is an angle or distance between the extension direction of the electromagnet 4 and the extension direction of the steel bar 100 to be loaded, the mechanical arm 11 is controlled by the mobile drive motor 12 to extend or move, so that the electromagnet 4 and the steel bar 100 to be loaded are aligned, so as to accurately magnetically attract the steel bar 100 to be loaded.

[0051] The working process of using the automatic grabbing feeding device for the steel bar bending machine is as follows:

[0052] In the first step, the steel bars 100 to be loaded are loaded into the silo body 201 , the silo main machine 203 is started, and the moving wheel 202 moves along the moving track 204 to the vicinity of the steel bar bending machine 300 .

[0053] In the second step, the grabbing cylinder 52 drives the rack 53 to move downward, and the rack 53 drives the gear 54 to rotate, thereby driving the two jaws 51 to open; the mobile drive motor 12 adjusts the angle and extension length of the mechanical arm 11, so that the grabbing device and the electromagnet 4 are located above the steel bar 100 to be loaded.

[0054] In the third step, the mobile driving motor 12 adjusts the angle and position of the electromagnet 4 through the mechanical arm 11, so that the extension direction of the electromagnet 4 is the same as the extension direction of the steel bar 100 to be loaded.

[0055] In the fourth step, the mobile driving motor 12 drives the mechanical arm 11 to slowly press down, and when the bottom surface of the electromagnet 4 is at a suitable sensing distance from the outer peripheral wall of the steel bar 100 to be loaded, the electromagnet 4 is powered on to start grabbing the steel bar 100 to be loaded, until the bottom surface of the electromagnet 4 abuts against the outer peripheral wall of the steel bar 100 to be loaded. Preferably, the steel bar bending machine uses an automatic grabbing feeding device to grab the end of the steel bar 100 to be loaded at a distance of about 800 mm.

[0056] In the fifth step, the mobile drive motor 12 drives the mechanical arm 11 to lift until the steel bar 100 to be loaded that is magnetically attracted by the electromagnet 4 is lifted about 100 mm, and the grabbing cylinder 52 drives the rack 53 to move upward, and the rack 53 drives the gear 54 to rotate, thereby driving the two jaws 51 to close and hold the steel bar 100 to be loaded that has been attracted by the electromagnet 4.

[0057] In the sixth step, the mobile drive motor 12 drives the mechanical arm 11 to move horizontally until the steel bar 100 to be loaded is located directly above the working position of the steel bar bending machine 300, and the grabbing cylinder 52 drives the rack 53 to move downward, and the rack 53 drives the gear 54 to rotate, thereby driving the two jaws 51 to open, and the electromagnet 4 is powered off, and the steel bar 100 to be loaded falls onto the conveying wheel of the steel bar bending machine 300. The conveying wheel clamps the steel bar 100 to be loaded and then rotates, thereby sending the steel bar 100 to be loaded into the shearing and bending system of the steel bar bending machine 300.

[0058] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An automatic grabbing feeding device for a steel bar bending machine, characterized in that: include: A mobile driving device (1), used for driving the loading device to move to a set position; A fixed base (2) connected to the mobile drive device (1); An electromagnet mounting base (3) connected to the fixed base (2); an electromagnet (4) for sucking the steel bars (100) to be loaded, the electromagnet (4) being arranged on the electromagnet mounting seat (3); and At least one set of gripping devices, the gripping devices comprising two clamping jaws (51) respectively arranged on both sides of the axis of the electromagnet (4), the two clamping jaws (51) being able to move towards each other until they grip the steel bar (100) to be loaded that is sucked onto the electromagnet (4); A plurality of guide shafts (31) are arranged on the electromagnet mounting seat (3), and a first direction damping spring (32) is sleeved on the outer side of the guide shaft (31); the automatic grabbing type feeding device for the steel bar bending machine also includes a buffer frame (6) located above the electromagnet mounting seat (3), one end of the first direction damping spring (32) is connected to the electromagnet mounting seat (3), and the other end is connected to the buffer frame (6); the buffer frame (6) is provided with a through hole for allowing the guide shaft (31) to pass through; An accommodating groove is provided on a plane of the buffer frame (6) facing the fixed base (2), and a second direction damping spring (61) is provided in the accommodating groove; the first direction damping spring (32) and the second direction damping spring (61) have different expansion and contraction directions; The buffer frame (6) and the fixed base (2) are hingedly connected via a pin shaft (7), and the buffer frame (6) can rotate around the axis of the pin shaft (7); The bottom surface of the electromagnet (4) is designed to be in the shape of an arc-shaped groove along its extension direction.

2. The automatic grabbing feeding device for a steel bar bending machine according to claim 1, characterized in that: The gripping device further comprises a gripping cylinder (52) and a rack (53), wherein the rack (53) is connected to the output end of the gripping cylinder (52); a gear (54) is arranged at the top end of the clamping jaw (51), and the gear (54) is arranged on a clamping jaw mounting seat via a hinge shaft (55); the rack (53) is meshed with the gear (54), and when the rack (53) moves back and forth, it can drive the two clamping jaws (51) to open or close.

3. The automatic grabbing feeding device for a steel bar bending machine according to claim 2, characterized in that: A one-way bearing (56) is provided at the bottom end of the clamping jaw (51), and a one-way rotating hand wheel (57) is sleeved on the outer side of the one-way bearing (56).

4. The automatic grabbing feeding device for a steel bar bending machine according to any one of claims 1 to 3, characterized in that: The automatic grabbing type feeding device for the steel bar bending machine further comprises a detection switch (81) for detecting whether the electromagnet (4) has attracted the steel bar (100) to be fed, and the detection switch (81) is mounted on a detection switch frame (82).

5. The automatic grabbing feeding device for a steel bar bending machine according to any one of claims 1 to 3, characterized in that: The mobile drive device (1) comprises a mechanical arm (11) and a mobile drive motor (12); the mechanical arm (11) is connected to an output end of the mobile drive motor (12).

6. A steel bar bending machine assembly, characterized in that: The invention comprises a raw material bin for loading steel bars (100) to be loaded, a steel bar bending machine (300) for bending the steel bars, and an automatic grabbing feeding device for the steel bar bending machine as claimed in any one of claims 1 to 5, wherein the electromagnet (4) and the grabbing device of the automatic grabbing feeding device for the steel bar bending machine can deliver the steel bars (100) to be loaded in the raw material bin to the working position of the steel bar bending machine (300) under the drive of a mobile driving device (1).

7. The steel bar bending machine assembly according to claim 6, characterized in that: The raw material bin comprises a bin body (201), a moving wheel (202) arranged at the bottom of the bin body (201), and a bin main unit (203) for driving the moving wheel (202) to rotate; the moving wheel (202) is installed on a moving track (204) and can move along the moving track (204).

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