Steel bar bending device

Abstract

The utility model relates to a steel bar bending device, including a workbench, wherein a bending device body for bending steel bars is arranged inside the workbench, a pressing mechanism for clamping steel bars is arranged on the left and right sides of the workbench, a control panel for operating the device is fixed to the back wall of the inner cavity of the workbench, and a shielding mechanism for protecting the control panel is arranged on the right side of the inner cavity of the workbench. The steel bar bending device, under the action of the pressing mechanism, clamps and fixes the steel bars through the cooperation of a cylinder, a fixing box, a lifting plate and a supporting plate, and cooperates with an upper limit rod, a clamping plate, a tension spring and a limit plate to clamp the steel bars so that the steel bars can move forward or backward smoothly during bending, so that the steel bars can complete the bending process smoothly, and cooperates with a pressure sensor to avoid excessive clamping force, which causes the clamped part of the steel bars to be unable to move forward and backward, resulting in the steel bars being unable to move during the bending process and thus failing.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a steel bar bending device. Background Art

[0002] Construction engineering refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction, etc. A large amount of steel bars will be used in the construction process. In order to make the steel bars meet the use requirements, the steel bars need to be bent. At this time, a bending device is needed.

[0003] For example, Chinese patent CN218855476U, the utility model provides a steel bar bending device, the steel bar bending device includes a body, rollers, a fixing assembly and a stretching assembly, the lower surface of the body is provided with four groups of rollers, the four groups of rollers are respectively fixedly connected to the lower surface of the body, the two side surfaces of the body are respectively provided with fixing assemblies, the two groups of fixing assemblies respectively include an outer shell, a threaded column, a first threaded block, a second fixed ring block, a second spiral wheel, a second gear, a cylinder and a handle, a stretching assembly is provided inside the body, the fixing assembly of the utility model can fix and bend steel bars of different sizes, thereby saving costs to a certain extent, because the bending block is slidably connected to the groove opened on the upper surface of the sliding part, so that it is convenient for employees to replace different bending blocks, which greatly saves employees' replacement time, thereby improving employees' office efficiency.

[0004] The above patent still has certain defects. Although this patent makes it convenient for employees to replace different bending blocks and greatly saves employees' replacement time, the two ends of the steel bar that are clamped and fixed during the bending process will tilt and move forward or backward. If the bending angle is large, it will cause it to completely detach from the clamping device. After detaching from the clamping device, the steel bar is easy to rotate and cause bending deformation, resulting in failure of steel bar processing. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a steel bar bending device, which has the advantages of preventing the steel bar from escaping from the clamping device during the bending process, and solves the problem that a large bending angle may cause the steel bar to completely escaping from the clamping device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel bar bending device, comprising a workbench, a bending device body for bending steel bars is arranged inside the workbench, a pressing mechanism for clamping steel bars is arranged on the left and right sides of the workbench, a control panel for operating the device is fixed to the back wall of the inner cavity of the workbench, and a shielding mechanism for protecting the control panel is arranged on the right side of the inner cavity of the workbench;

[0007] The pressing mechanism includes two support plates respectively fixed on the left and right sides of the workbench, two fixed boxes are fixed on the lower surfaces of the two support plates, a cylinder is fixed to the bottom wall of the inner cavity of the fixed box, a lifting plate is fixed to the outer sides of the output shafts of two adjacent cylinders, no less than two tension springs are fixed to the lower surface of the lifting plate, a clamping plate is fixed to the lower surface of no less than two tension springs, two limit rods are fixed to the upper surface of the clamping plate, the top ends of the two limit rods are fixed with a limit plate located on the upper side of the lifting plate, and two pressure sensors are fixed to the lower surface of the lifting plate.

[0008] Furthermore, a through hole for the limiting rod to pass through is opened on the upper surface of the lifting plate, and the limiting rod is slidably connected to the inside of the lifting plate through the through hole.

[0009] Furthermore, the two pressure sensors are symmetrical to each other with the central axis of the lifting plate as a symmetry line, and a rubber pad is fixed to the upper surface of the clamping plate.

[0010] Furthermore, a movable hole for the cylinder to pass through is opened on the upper surface of the support plate, and the cylinder is gap-matched with the support plate through the movable hole.

[0011] Furthermore, the shielding mechanism includes two connecting rods fixed to the right side wall of the inner cavity of the workbench, and limit blocks are fixed on the left sides of the two connecting rods. The outer sides of the two limit blocks are slidably connected with shielding plates, and the left side wall of the inner cavity of the shielding plate is fixed with two return springs and the two shielding plates are respectively fixed on the left sides of the two limit blocks, and the right side wall of the inner cavity of the workbench is fixed with a magnet.

[0012] Furthermore, a fixing groove for inserting a magnet is provided on the right side of the shielding plate, and an auxiliary block is fixed on the front side of the shielding plate.

[0013] Furthermore, a limiting groove for sliding connection of the limiting block is provided inside the shielding plate, a connecting hole for the connecting rod to pass through is provided on the right side of the shielding plate, and the limiting block is slidably connected to the inside of the shielding plate through the connecting hole.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The steel bar bending device, the pressing mechanism clamps and fixes the steel bar through the cooperation of the cylinder, the fixed box, the lifting plate and the support plate, and cooperates with the upper limit rod, the clamping plate, the tension spring and the limit plate to clamp the steel bar while allowing the steel bar to move forward or backward during bending, so that the steel bar can complete the bending process smoothly, and cooperates with the pressure sensor to avoid excessive clamping force that causes the clamped part of the steel bar to be unable to move forward and backward, resulting in failure of the bending process.

[0016] 2. The shielding mechanism of the steel bar bending device shields the control panel inside through the cooperation of magnets, connecting rods, limit blocks, shielding plates and reset springs, so as to prevent the buttons on the control panel from being pressed to start the equipment due to accidental impact, resulting in processing failure or worker injury, and at the same time facilitate the staff to use the control panel to operate the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the pressing mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the shielding mechanism of the utility model.

[0020] In the figure: 1 bending device body, 2 workbench, 3 pressing mechanism, 301 cylinder, 302 fixed box, 303 limit rod, 304 clamping plate, 305 pressure sensor, 306 tension spring, 307 limit plate, 308 lifting plate, 309 support plate, 4 shielding mechanism, 401 magnet, 402 connecting rod, 403 limit block, 404 shielding plate, 405 reset spring, 5 control panel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 A steel bar bending device in this embodiment includes a workbench 2, and a bending device body 1 for bending steel bars is arranged inside the workbench 2. The bending device body 1 is a common device for bending steel bars on the market. A pressing mechanism 3 for clamping steel bars is arranged on the left and right sides of the workbench 2. A control panel 5 for controlling the device is fixed to the back wall of the inner cavity of the workbench 2. A shielding mechanism 4 for protecting the control panel 5 is arranged on the right side of the inner cavity of the workbench 2. The electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not repeated in this text. The industrial power interface is connected to power on the device, and the PLC system controls the entire device to operate as expected.

[0023] See also Figure 2In order to prevent the steel bar from being separated from the clamp during the bending process, the pressing mechanism 3 in this embodiment includes two support plates 309 respectively fixed on the left and right sides of the workbench 2, and two fixed boxes 302 are fixed on the lower surfaces of the two support plates 309. The bottom wall of the inner cavity of the fixed box 302 is fixed with a cylinder 301, and the outer side of the output shaft of the two adjacent cylinders 301 is fixed with a lifting plate 308. The lower surface of the lifting plate 308 is fixed with at least two tension springs 306, and the lower surface of the at least two tension springs 306 is fixed with a clamping plate 304, and the upper surface of the clamping plate 304 is fixed with There are two limit rods 303, and the top of the two limit rods 303 is fixed with a limit plate 307 located on the upper side of the lifting plate 308. Two pressure sensors 305 are fixed on the lower surface of the lifting plate 308. After the tension spring 306 is compressed to a certain extent, the clamping plate 304 contacts and squeezes the pressure sensor 305. After the pressure of the pressure sensor 305 reaches the set value, the cylinder 301 is closed. At this time, the steel bar is in a state where it cannot move at will. At the same time, the two parts of the steel bar that are pressed when it is bent and stressed can move forward and backward without hindrance with the cooperation of the elastic potential energy of the spring.

[0024] Among them, a through hole is opened on the upper surface of the lifting plate 308 for the limit rod 303 to pass through, and the limit rod 303 is slidably connected to the inside of the lifting plate 308 through the through hole, and the two pressure sensors 305 are symmetrical to each other with the central axis of the lifting plate 308 as the symmetry line. A rubber pad is fixed to the upper surface of the clamping plate 304, and a movable hole is opened on the upper surface of the support plate 309 for the cylinder 301 to pass through, and the cylinder 301 is gap-matched with the support plate 309 through the movable hole. The control method of the present application is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present application is mainly used to protect mechanical devices, so the present application no longer explains the control method and circuit connection in detail.

[0025] In this embodiment, the pressing mechanism 3 clamps and fixes the steel bars through the cooperation of the cylinder 301, the fixed box 302, the lifting plate 308 and the support plate 309, and cooperates with the upper limit rod 303, the clamping plate 304, the tension spring 306 and the limit plate 307 to clamp the steel bars while allowing the steel bars to move forward or backward during bending, so that the steel bars can complete the bending process smoothly.

[0026] See also Figure 3In order to protect the control panel 5, the shielding mechanism 4 in this embodiment includes two connecting rods 402 fixed to the right side wall of the inner cavity of the workbench 2, and the left sides of the two connecting rods 402 are fixed with limit blocks 403. The outer sides of the two limit blocks 403 are slidably connected with shielding plates 404, and the left side wall of the inner cavity of the shielding plate 404 is fixed with two return springs 405, and the two shielding plates 404 are respectively fixed on the left sides of the two limit blocks 403. A magnet 401 is fixed to the right side wall of the inner cavity of the workbench 2, and a storage groove is opened on the front of the workbench 2. The control panel 5 is fixed to the back wall of the inner cavity of the storage groove, and the shielding plate 404 is slidably connected to the inside of the storage groove.

[0027] Among them, a fixing groove for the magnet 401 to be plugged in is opened on the right side of the shielding plate 404, an auxiliary block is fixed on the front side of the shielding plate 404, a limiting groove for the limiting block 403 to be slidably connected is opened inside the shielding plate 404, a connecting hole for the connecting rod 402 to pass through is opened on the right side of the shielding plate 404, and the limiting block 403 is slidably connected to the inside of the shielding plate 404 through the connecting hole, a movable groove for the shielding plate 404 to be slidably connected is opened on the right side wall of the inner cavity of the workbench 2, and a rubber plate is fixed on the back of the shielding plate 404.

[0028] In this embodiment, the shielding mechanism 4 shields the control panel 5 inside through the cooperation of the magnet 401, the connecting rod 402, the limit block 403, the shielding plate 404 and the return spring 405, so as to prevent the buttons on the control panel 5 from being pressed to start the equipment due to accidental impact, resulting in processing failure or worker injury, while making it convenient for the staff to use the control panel 5 to operate the equipment.

[0029] The working principle of the above embodiment is:

[0030] (1) When bending the steel bar, the four cylinders 301 are started at the same time. The four cylinders 301 drive the two lifting plates 308 to move upward through the output shafts respectively until they rise to the highest point. Then, one end of the steel bar is passed through the support plates 309 on the left and right sides and the opposite side of the pressing plate 304. Then, the position where the steel bar needs to be bent is placed on the bending device body 1. Then, the four cylinders 301 are started again to drive the lifting plates 308 to move downward, so that the pressing plate 304 presses the steel bar. After the tension spring 306 is compressed to a certain extent, the pressing plate 304 contacts and squeezes the pressure sensor 305. The cylinder 301 is closed after the pressure on the pressure sensor 305 reaches the set value. At this time, the steel bar is clamped and cannot move. At the same time, the two parts of the steel bar clamped during the bending process can move to the front and rear sides and cannot be completely separated. The pressing mechanism 3 clamps and fixes the steel bar through the cooperation of the cylinder 301, the fixing box 302, the lifting plate 308 and the supporting plate 309, and cooperates with the upper limit rod 303, the clamping plate 304, the tension spring 306 and the limit plate 307 to clamp the steel bar while allowing the steel bar to move forward or backward during bending, so that the steel bar can complete the bending process smoothly.

[0031] (2) When starting the bending device body 1 or the cylinder 301, grab the auxiliary plate and pull it to the right. The auxiliary plate drives the shielding plate 404 to move to the right together. When the shielding plate 404 moves, the limit block 403 slides inside it and compresses the return spring 405. When the return spring 405 is compressed to the shortest, the magnet 401 is inserted into the inside of the shielding plate 404 and magnetically attracts the shielding plate 404, so that the shielding plate 404 cannot move. At this time, the control panel 5 is completely exposed and can be used. After use, pull the auxiliary plate to the left to separate the magnet 401 from the shielding plate 404. The shielding plate 404 can return to its original position through the rebound force of the return spring 405. The shielding mechanism 4 shields the control panel 5 inside through the cooperation of the magnet 401, the connecting rod 402, the limit block 403, the shielding plate 404 and the return spring 405, so as to prevent the buttons on the control panel 5 from being pressed to start the equipment due to accidental impact, resulting in processing failure or worker injury. At the same time, it is convenient for the staff to use the control panel 5 to operate the equipment.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar bending device, comprising a workbench (2), characterized in that: A bending device body (1) for bending steel bars is arranged inside the workbench (2); pressing mechanisms (3) for clamping steel bars are arranged on the left and right sides of the workbench (2); a control panel (5) for operating the device is fixed to the back wall of the inner cavity of the workbench (2); and a shielding mechanism (4) for protecting the control panel (5) is arranged on the right side of the inner cavity of the workbench (2); The pressing mechanism (3) comprises two support plates (309) respectively fixed on the left and right sides of the workbench (2), two fixed boxes (302) are fixed on the lower surfaces of the two support plates (309), a cylinder (301) is fixed on the bottom wall of the inner cavity of the fixed box (302), a lifting plate (308) is fixed on the outer sides of the output shafts of two adjacent cylinders (301), no less than two elastic springs (306) are fixed on the lower surface of the lifting plate (308), a clamping plate (304) is fixed on the lower surface of the no less than two elastic springs (306), two limiting rods (303) are fixed on the upper surface of the clamping plate (304), and limiting plates (307) located on the upper side of the lifting plate (308) are fixed on the top ends of the two limiting rods (303), and two pressure sensors (305) are fixed on the lower surface of the lifting plate (308).

2. A steel bar bending device according to claim 1, characterized in that: The upper surface of the lifting plate (308) is provided with a through hole for the limiting rod (303) to pass through, and the limiting rod (303) is slidably connected to the inside of the lifting plate (308) through the through hole.

3. A steel bar bending device according to claim 1, characterized in that: The two pressure sensors (305) are symmetrical to each other with the central axis of the lifting plate (308) as the symmetry line, and a rubber pad is fixed on the upper surface of the pressing plate (304).

4. A steel bar bending device according to claim 1, characterized in that: The upper surface of the support plate (309) is provided with a movable hole for the cylinder (301) to pass through, and the cylinder (301) is clearance-matched with the support plate (309) through the movable hole.

5. A steel bar bending device according to claim 1, characterized in that: The shielding mechanism (4) comprises two connecting rods (402) fixed to the right side wall of the inner cavity of the workbench (2), a limit block (403) is fixed on the left side of the two connecting rods (402), a shielding plate (404) is slidably connected to the outer side of the two limit blocks (403), two return springs (405) are fixed to the left side wall of the inner cavity of the shielding plate (404), and the two shielding plates (404) are respectively fixed to the left side of the two limit blocks (403), and a magnet (401) is fixed to the right side wall of the inner cavity of the workbench (2).

6. A steel bar bending device according to claim 5, characterized in that: A fixing groove for inserting the magnet (401) is provided on the right side of the shielding plate (404), and an auxiliary block is fixed on the front side of the shielding plate (404).

7. A steel bar bending device according to claim 5, characterized in that: A limiting groove for the limiting block (403) to be slidably connected is provided inside the shielding plate (404), a connecting hole for the connecting rod (402) to pass through is provided on the right side of the shielding plate (404), and the limiting block (403) is slidably connected to the inside of the shielding plate (404) through the connecting hole.

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