Construction site steel bar bending tool and bending method thereof

Abstract

The invention discloses a construction site steel bar bending tool and a bending method thereof. The bending tool comprises a strip-shaped base arranged in the transverse direction; the two vertical plates are connected to the two opposite sides of the middle of the strip-shaped base respectively; the supporting seat is transversely arranged, one end of the supporting seat is fixed between the two vertical plates, and the other end of the supporting seat extends towards the tail end of the strip-shaped base; the lower conveying roller is rotationally connected to the top of the supporting seat by taking the longitudinal direction as an axis; the first end of the lifting seat is rotationally connected between the two vertical plates, and the second end of the lifting seat extends towards the head end of the base; and the bending pressing roller is located over the first end of the lifting base and connected between the two vertical plates, a bending space allowing the steel bar to be bent to penetrate through is formed between the bending pressing roller and the lower conveying roller, and the construction efficiency is improved by arranging the bending tool.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly to a steel bar bending tool for a construction site and a bending method thereof. Background Art

[0002] Currently, in the field of building construction, steel bars are required. Among them, when using steel bars at a construction site, in some cases, the steel bars need to be bent. When using a traditional steel bar bender to bend the steel bars, it is necessary to manually control the bending position and the bending angle, and the bending accuracy is poor, wasting labor and affecting the construction efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a steel bar bending tool for a construction site and a bending method thereof, which can automatically move the steel bar to the bending position and automatically bend it, with a high degree of automation and improved construction efficiency.

[0004] To achieve the above purpose, the technical solution adopted by the present invention for the steel bar bending tool for a construction site includes:

[0005] A strip-shaped base arranged horizontally;

[0006] Two vertical plates, which are respectively connected to the opposite sides of the middle part of the strip-shaped base;

[0007] A support seat located above the strip-shaped base, the support seat is arranged horizontally and one end is fixed between the two vertical plates, and the other end extends towards the tail end of the strip-shaped base;

[0008] A conveying lower roller for driving the steel bar to be bent to move horizontally, the conveying lower roller is rotatably connected to the top of the support seat with the longitudinal axis, and a first card slot for placing the steel bar to be bent is provided on the conveying lower roller;

[0009] A lifting seat located above the strip-shaped base, the first end of the lifting seat is rotatably connected between the two vertical plates, the second end extends towards the head end of the base, and a limiting member for placing and limiting the steel bar to be bent is connected to the lifting seat. When the lifting seat rotates to the horizontal state, the top surface of the rotating seat is flush with the top surface of the support seat;

[0010] A bending pressure roller located directly above the first end of the lifting seat, the bending pressure roller is rotatably connected between the two vertical plates, and a bending space for the steel bar to be bent to pass through is formed between the bending pressure roller and the conveying lower roller.

[0011] A further improvement of the steel bar bending tool at the construction site of the present invention lies in that the lifting seat is connected to the two vertical plates through a rotating shaft, the rotating shaft is arranged longitudinally, connection holes for the rotating connection of the rotating shaft are formed on both vertical plates, and the first end of the lifting seat is connected to the rotating shaft.

[0012] A further improvement of the steel bar bending tool at the construction site of the present invention lies in that it further includes a first driving member for driving the lower conveying roller to stop rotating and rotate in cooperation with the up-and-down flipping of the lifting seat.

[0013] A further improvement of the steel bar bending tool at the construction site of the present invention lies in that the first driving member includes:

[0014] A first motor, the body of the first motor is connected to one side of the support seat, and the motor shaft of the first motor is arranged longitudinally;

[0015] A driving gear, the driving gear is coaxially connected to the motor shaft;

[0016] A first driven gear, the first driven gear is located above the driving gear and is rotatably connected to the support seat;

[0017] A second driven gear, one end of the lower conveying roller relatively close to the first motor extends outward relatively and forms a first extension section, and the second driven gear is coaxially connected to the first extension section;

[0018] A transmission belt, racks are connected to both the inner and outer circumferences of the transmission belt, and the transmission belt is sleeved on the outer circumferences of the first driven gear and the second driven gear;

[0019] A third driven gear that can move horizontally, a sliding groove is formed horizontally on one side of the support seat relatively close to the first motor, a slider is slidably connected in the sliding groove, return springs are connected between the slider and both ends of the sliding groove, a push rod is connected horizontally to the outside of the slider, a third driven gear is rotatably connected to one end of the push rod relatively close to the first driven gear or the driving gear, and a roller is rotatably connected to one end of the push rod relatively close to the rotating shaft. When the third driven gear is in the first position, the third driven gear is simultaneously meshed and connected to the transmission belt and the driving gear. When the third driven gear is in the second position, the return spring is in the reset state, and the third driven gear is separated from the transmission belt and the driving gear;

[0020] A cam for pushing against the roller. One end of the rotating shaft relatively close to the first motor extends outward relatively and forms a second extension section. The cam is coaxially connected to the second extension section. The cam satisfies: in the state where the lifting seat flips upward from the horizontal position, the non-convex part of the cam abuts against the outer circumference of the roller, and the third driven gear is in the second position; in the state where the lifting seat flips downward from the horizontal position, the convex part of the cam abuts against the roller, and the third driven gear is in the first position.

[0021] A further improvement of the construction site steel bar bending tool of the present invention is that it further includes a second driving member for driving the rotation of the lifting seat.

[0022] A further improvement of the construction site steel bar bending tool of the present invention is that the second driving member includes a telescopic rod. One end of the telescopic rod is connected to the head end of the strip-shaped base, and the other end is hinged to the second end of the lifting seat.

[0023] A further improvement of the construction site steel bar bending tool of the present invention is that the limiting member includes:

[0024] A lifting roller for placing the steel bar to be bent. The lifting roller is rotatably connected to the top of the lifting seat with the longitudinal direction as the axis. A second card slot for placing the steel bar to be bent is provided on the lifting roller;

[0025] A baffle for preventing the steel bar to be bent from moving. The baffle is located at the top of the lifting seat and is connected between the second end of the lifting seat and the lifting roller in a position-adjustable manner.

[0026] A construction site steel bar bending method includes the steps of:

[0027] Step 1: Provide the above-mentioned construction site steel bar bending tool;

[0028] Step 2: Rotate the lifting seat to the horizontal state, pass the steel bar to be bent through the bending space and place it on the conveying lower roller and the limiting member;

[0029] Step 3: Start the conveying lower roller to drive the steel bar to be bent to move horizontally until the designed bending point of the steel bar to be bent moves directly below the bending pressure roller, and use the limiting member to limit the steel bar to be bent;

[0030] Step 4: Rotate the lifting seat upward until the steel bar to be bent is bent to the designed angle.

[0031] Compared with the prior art, the advantages of the present invention are:

[0032] By setting up the conveying lower roller, while supporting the steel bar to be bent, it can also drive the steel bar to be bent to move to the designed position, with high automation and improved construction efficiency. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 It is a side view of the structure of the steel bar bending tool at the construction site of the present invention.

[0035] Figure 2 It is a front view of the structure of the steel bar bending tool at the construction site of the present invention.

[0036] Figure 3 It is a schematic diagram of the structure of the first driving member of the steel bar bending tool at the construction site of the present invention.

[0037] Figure 4 It is Figure 3 a partial enlarged view of

[0038] Figure 5 It is a top view of the structure of the steel bar bending tool at the construction site of the present invention.

[0039] Figure 6 It is a detailed view of the structure of the first driving member of the steel bar bending tool at the construction site of the present invention.

[0040] Figure 7 It is a detailed view of the structure of the propulsion disc of the steel bar bending tool at the construction site of the present invention.

[0041] Figure 8 It is a detailed view of the structure of the position adjustment component of the steel bar bending tool at the construction site of the present invention.

[0042] In the figure: 1, strip-shaped base; 2, vertical plate; 3, support seat; 4, lifting seat; 5, second driving member; 6, steel bar to be bent; 7, conveying lower roller; 8, conveying upper roller; 9, lifting roller; 10, baffle; 11, bending pressure roller; 12, second driven gear; 13, driving gear; 14, first driven gear; 15, transmission belt; 16, third driven gear; 17, chute; 18, slider; 19, return spring; 20, push-pull rod; 21, through groove; 22, first motor; 23, guide rod; 24, roller; 25, cam; 26, cover plate; 27, connecting block; 28, lead screw; 29, moving block; 30, handle. Detailed Embodiments

[0043] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] The following further describes the construction site steel bar bending tool and its bending method of the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0045] Please refer to Figures 1 to 8 as shown, the construction site steel bar bending tool includes:

[0046] A strip-shaped base 1 arranged horizontally;

[0047] Two vertical plates 2, and the two vertical plates 2 are respectively connected to opposite sides of the middle part of the strip-shaped base 1;

[0048] A support seat 3 located above the strip-shaped base 1, the support seat 3 is arranged horizontally and one end is fixed between the two vertical plates 2, and the other end extends towards the tail end of the strip-shaped base 1;

[0049] A conveying lower roller 7 for driving the steel bar 6 to be bent to move horizontally, the conveying lower roller 7 is rotatably connected to the top of the support seat 3 with the longitudinal axis as the axis, and a first card slot for placing the steel bar 6 to be bent is provided on the conveying lower roller 7;

[0050] A lifting seat 4 located above the strip-shaped base 1, the first end of the lifting seat 4 is rotatably connected between the two vertical plates 2, the second end extends towards the head end of the base, and a limiting member for placing and limiting the steel bar 6 to be bent is connected to the lifting seat 4. When the lifting seat 4 rotates to the horizontal state, the top surface of the rotating seat is flush with the top surface of the support seat 3;

[0051] A bending pressure roller 11 located directly above the first end of the lifting seat 4, the bending pressure roller 11 is rotatably connected between the two vertical plates 2, and a bending space for the steel bar 6 to be bent to pass through is formed between the bending pressure roller 11 and the conveying lower roller 7.

[0052] Specifically, the bending space is adapted to the diameter of the steel bar 6 to be bent.

[0053] Specifically, the conveying lower roller 7 includes two inverted U-shaped connecting ears connected to the top of the support seat 3 at intervals along the longitudinal direction. A bearing is rotatably connected in each inverted U-shaped connecting ear, and a rotating rod is connected between the two bearings.

[0054] Preferably, the lifting seat 4 is connected to the two vertical plates 2 by a rotating shaft. The rotating shaft is arranged longitudinally. Connection holes for the rotating connection of the rotating shaft are provided on both of the two vertical plates 2, and the first end of the lifting seat 4 is connected to the rotating shaft.

[0055] Preferably, it further includes a first driving member for driving the lower conveying roller 7 to stop rotating and rotate in cooperation with the up-and-down flipping of the lifting seat 4.

[0056] Preferably, the first driving member includes:

[0057] A first motor 22, the body of the first motor 22 is connected to one side of the support seat 3, and the motor shaft of the first motor 22 is arranged longitudinally;

[0058] A driving gear 13, the driving gear 13 is coaxially connected to the motor shaft;

[0059] A first driven gear 14, the first driven gear 14 is located above the driving gear 13 and is rotatably connected to the support seat 3;

[0060] A second driven gear 12, one end of the lower conveying roller 7 relatively close to the first motor 22 extends relatively outward to form a first extension section, and the second driven gear 12 is coaxially connected to the first extension section;

[0061] A transmission belt 15, racks are connected to both the inner and outer circumferences of the transmission belt 15, and the transmission belt 15 is sleeved on the outer circumferences of the first driven gear 14 and the second driven gear 12;

[0062] A third driven gear 16 that can move horizontally, a sliding groove 17 is provided horizontally on one side of the support seat 3 relatively close to the first motor 22, a slider 18 is slidably connected in the sliding groove 17, return springs 19 are connected between the slider 18 and both ends of the sliding groove 17, a push-pull rod 20 is connected horizontally to the outside of the slider 18, a third driven gear 16 is rotatably connected to one end of the push-pull rod 20 relatively close to the first driven gear 14 or the driving gear 13, a roller 24 is rotatably connected to one end of the push-pull rod 20 relatively close to the rotating shaft. When the third driven gear 16 is in the first position, the third driven gear 16 is simultaneously meshed with the transmission belt 15 and the driving gear 13. When the third driven gear 16 is in the second position, the return spring 19 is in the reset state, and the third driven gear 16 is separated from the transmission belt 15 and the driving gear 13;

[0063] The cam 25 for pushing against the roller 24, one end of the rotating shaft relatively close to the first motor 22 extends relatively outward and forms a second extension section, the cam 25 is coaxially connected to the second extension section, and the cam 25 satisfies: in the state where the lifting seat 4 flips upward from the horizontal position, the non-protruding part of the cam 25 abuts against the outer circumference of the roller, and the third driven gear 16 is in the second position; in the state where the lifting seat 4 flips downward from the horizontal position, the protruding part of the cam 25 abuts against the roller, and the third driven gear 16 is in the first position.

[0064] Through the above design, when bending the reinforcing bar 6 to be bent, the third driven gear 16 is in the second position, the third driven gear 16 is separated from the transmission belt 15 and the driving gear 13, and at this time the driving gear 13 is in an idling state, and further the conveying lower roller 7 is in a stationary state, ensuring the bending stability of the reinforcing bar 6 to be bent.

[0065] Specifically, a guide rod 23 is connected throughout the chute 17, the slider 18 is slidably sleeved on the guide rod 23, and the return spring 19 is sleeved on the guide rod 23 and connected to the slider 18.

[0066] By providing the guide rod 23, the sliding stability of the slider 18 and the stability of the return spring 19 are ensured.

[0067] Specifically, the bending tool further includes a cover plate 26. The cover plate 26 is arranged horizontally and is located above the support seat 3. One end of the cover plate 26 is connected to the two vertical plates 2, and the other end extends towards the tail end of the strip-shaped base 1. A conveying upper roller 8 is connected to the bottom of the cover plate 26. The conveying upper roller 8 faces the conveying lower roller 7 and supports on the top of the conveying lower roller 7. A third card slot for the reinforcing bar 6 to be bent to be inserted is formed on the conveying upper roller 8. One end of the conveying upper roller 8 relatively close to the first motor 22 extends relatively outward and forms a third extension section. A fourth driven gear is coaxially connected to the third extension section. The fourth driven gear is meshed and connected with the transmission belt 15 on the outer circumference of the second driven gear 12. A threading space for the reinforcing bar 6 to be bent to pass through is formed between the conveying upper roller 8 and the conveying lower roller 7, and the threading space is adapted to the diameter of the reinforcing bar 6 to be bent.

[0068] By providing the conveying upper roller 8, when the conveying lower roller 7 rotates, the transmission belt 15 on the second driven gear 12 will drive the fourth driven gear to rotate, and then drive the conveying upper roller 8 to rotate. Further, the conveying upper roller 8 and the conveying lower roller 7 rotate together to drive the reinforcing bar 6 to be bent to move, improving the moving effect of the reinforcing bar 6 to be bent and avoiding the slipping phenomenon.

[0069] Preferably, it further includes a second driving member 5 for driving the lifting seat 4 to rotate.

[0070] Preferably, the second driving member 5 includes a telescopic rod, one end of the telescopic rod is connected to the head end of the strip-shaped base 1, and the other end is hinged to the second end of the lifting seat 4.

[0071] Specifically, the telescopic rod is hinged to the head end of the strip-shaped base 1.

[0072] Preferably, the limiting member includes:

[0073] A lifting roller 9 for placing the reinforcing bar 6 to be bent, the lifting roller 9 is rotatably connected to the top of the lifting seat 4 with the longitudinal direction as the axis, and a second card slot for placing the reinforcing bar 6 to be bent is formed on the lifting roller 9;

[0074] A baffle 10 for preventing the reinforcing bar 6 to be bent from moving, the baffle 10 is located at the top of the lifting seat 4 and is connected between the second end of the lifting seat 4 and the lifting roller 9 in a position-adjustable manner.

[0075] Specifically, the baffle 10 is connected to the lifting seat 4 through a position adjustment assembly, and the position adjustment assembly includes:

[0076] Two connecting blocks 27 connected to the bottom of the lifting seat 4 at intervals along the length direction of the lifting seat 4;

[0077] A lead screw 28 rotatably connected between the two connecting blocks 27, one end of the lead screw 28 passes through one of the connecting blocks 27 and is formed with a handle 30;

[0078] A moving block 29 located between the two connecting blocks 27 and sleeved on the outside of the lead screw 28 in a screwed manner, the moving block 29 is connected to the baffle 10, both ends of the bottom of the baffle 10 extend downward respectively and are formed with two extension rods, and two through grooves 21 for the two extension rods to slide through are respectively formed on the lifting seat 4 along the length direction, and the two extension rods are connected to the moving block 29.

[0079] By rotating the handle 30, the lead screw 28 is driven to rotate, then the moving block 29 is driven to move along the axial direction of the lead screw 28, and then the baffle 10 is driven to move.

[0080] A method for bending reinforcing bars at a construction site includes the steps:

[0081] Step 1: Provide the above-mentioned reinforcing bar bending tool at the construction site;

[0082] Step 2: Rotate the lifting seat 4 to a horizontal state, pass the reinforcing bar 6 to be bent through the bending space and place it on the conveying lower roller 7 and the limiting member;

[0083] Step 3: Start the lower conveying roller 7 to drive the reinforcing bar 6 to be bent to move horizontally until the designed bending point of the reinforcing bar 6 to be bent moves directly below the bending roller 11, and use the limiting member to limit the reinforcing bar 6 to be bent.

[0084] Step 4: Rotate the lifting seat 4 upward until the reinforcing bar 6 to be bent is bent to the designed angle.

[0085] Specifically, when performing the above Step 3, first move the baffle 10 to the designed position, and then start the lower conveying roller 7 to drive the reinforcing bar 6 to be bent to move horizontally until it abuts against the baffle 10. The designed position of the baffle 10 satisfies that in the state where the reinforcing bar 6 to be bent abuts against the baffle 10, the position of the reinforcing bar 6 to be bent directly opposite to the bending roller 11 is the designed bending point of the reinforcing bar 6 to be bent.

[0086] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope for the implementation of the present invention. Any change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0087] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not used to limit the present invention. Any person skilled in this profession, within the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments with equivalent changes by using the technical content disclosed above. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A construction site steel bar bending tool, characterized in that, Comprising: A strip-shaped base arranged horizontally; Two vertical plates, which are respectively connected to opposite sides of the middle of the strip-shaped base; A support seat located above the strip-shaped base, the support seat is arranged horizontally and one end is fixed between the two vertical plates, and the other end extends towards the tail end of the strip-shaped base; A conveying lower roller for driving the steel bar to be bent to move horizontally, the conveying lower roller is rotatably connected to the top of the support seat with the longitudinal axis as the axis, and a first card slot for placing the steel bar to be bent is provided on the conveying lower roller; A lifting seat located above the strip-shaped base, the first end of the lifting seat is rotatably connected between the two vertical plates, the second end extends towards the head end of the base, and a limiting member for placing and limiting the steel bar to be bent is connected to the lifting seat. When the lifting seat rotates to the horizontal state, the top surface of the rotating seat is flush with the top surface of the support seat; A bending pressure roller located directly above the first end of the lifting seat, the bending pressure roller is rotatably connected between the two vertical plates, and a bending space for the steel bar to be bent to pass through is formed between the bending pressure roller and the conveying lower roller.

2. The construction site steel bar bending tool according to claim 1, characterized in that, The lifting seat is connected to the two vertical plates through a rotating shaft, the rotating shaft is arranged longitudinally, connection holes for the rotating shaft to be rotatably connected are provided on both vertical plates, and the first end of the lifting seat is connected to the rotating shaft.

3. The construction site steel bar bending tool according to claim 2, characterized in that, It further includes a first driving member for driving the conveying lower roller to stop rotating and rotate in cooperation with the up-and-down flipping of the lifting seat.

4. The construction site steel bar bending tool according to claim 3, wherein The first driving member includes: A first motor, the body of the first motor is connected to one side of the support seat, and the motor shaft of the first motor is arranged longitudinally; A driving gear, the driving gear is coaxially connected to the motor shaft; A first driven gear, the first driven gear is located above the driving gear and is rotatably connected to the support seat; A second driven gear, one end of the conveying lower roller relatively close to the first motor extends relatively outward and forms a first extension section, and the second driven gear is coaxially connected to the first extension section; A transmission belt, racks are connected to both the inner and outer circumferences of the transmission belt, and the transmission belt is sleeved on the outer circumferences of the first driven gear and the second driven gear; A third driven gear that can move horizontally, a sliding groove is opened horizontally on one side of the support seat relatively close to the first motor, a slider is slidably connected in the sliding groove, return springs are connected between the slider and both ends of the sliding groove, a push rod is connected to the outside of the slider horizontally, a third driven gear is rotatably connected to one end of the push rod relatively close to the first driven gear or the driving gear, and a roller is rotatably connected to one end of the push rod relatively close to the rotating shaft. When the third driven gear is in the first position, the third driven gear is simultaneously meshed and connected to the transmission belt and the driving gear. When the third driven gear is in the second position, the return spring is in the reset state, and the third driven gear is separated from the transmission belt and the driving gear; A cam for pushing against the roller. One end of the rotating shaft relatively close to the first motor extends outward relatively and forms a second extension section. The cam is coaxially connected to the second extension section. The cam satisfies the following: in the state where the lifting seat flips upward from the horizontal position, the non-protruding part of the cam abuts against the outer periphery of the roller, and the third driven gear is in the second position; in the state where the lifting seat flips downward from the horizontal position, the protruding part of the cam abuts against the roller, and the third driven gear is in the first position.

5. The construction site steel bar bending tool according to claim 1, characterized in that It further includes a second driving member for driving the rotation of the lifting seat.

6. The construction site steel bar bending tool according to claim 5, characterized in that, The second driving member includes a telescopic rod. One end of the telescopic rod is connected to the head end of the strip-shaped base, and the other end is hinged to the second end of the lifting seat.

7. The construction site steel bar bending tool according to claim 1, characterized in that, The limiting member includes: A lifting roller for placing the reinforcing bar to be bent. The lifting roller is rotatably connected to the top of the lifting seat with the longitudinal direction as the axis, and a second card slot for placing the reinforcing bar to be bent is formed on the lifting roller. A baffle for preventing the movement of the reinforcing bar to be bent. The baffle is located at the top of the lifting seat and is connected between the second end of the lifting seat and the lifting roller in a position-adjustable manner.

8. A method for bending steel bars at a construction site, characterized in that, It includes steps: Step 1: Provide the construction site reinforcing bar bending tool as described in claim 1. Step 2: Rotate the lifting seat to the horizontal state, pass the reinforcing bar to be bent through the bending space and place it on the conveying lower roller and the limiting member. Step 3: Start the conveying lower roller to drive the reinforcing bar to be bent to move horizontally until the designed bending point of the reinforcing bar to be bent moves directly below the bending pressure roller, and use the limiting member to limit the reinforcing bar to be bent. Step 4: Rotate the lifting seat upward until the reinforcing bar to be bent is bent to the designed angle.

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