A steel bar truss web member bending forming die

Abstract

The utility model discloses a kind of steel bar truss web member bending forming die, including back frame, the lower roller frame fixed in back frame surface one side, the multiple through holes for web member steel bar to pass through being opened in the inside of back frame upper lower roller frame and the pneumatic push-pull assembly installed in back frame surface other side, the moving end of the pneumatic push-pull assembly is equipped with upper pressing arm, the lower roller frame top end of upper pressing arm lower side is equipped with double-roller feeding assembly, and double-roller feeding assembly is used for conveying web member steel bar in multiple through holes.The utility model is cooperated with the structure such as back frame, through hole, pneumatic push-pull assembly, upper pressing arm, lower roller frame and double-roller feeding assembly etc., realizes the effect of centralized positioning, multiple point feeding, synchronous bending, reduces the time consumption of previous bending by root, and avoids the cumbersome steps of repeated positioning, adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of steel truss forming tools, specifically a steel truss web member bending forming mold. Background Technology

[0002] In building construction, bending the web members of steel trusses is a crucial step in ensuring structural safety and construction quality. When bending the web members, it is necessary to measure the length and bending angle of the steel bars according to the design drawings, and clean the surface of the steel bars of rust and oil to ensure the flexibility of the steel bars and the accuracy of the bending. During the operation, workers fix the steel bars on the bending equipment and gradually apply pressure to bend them along the predetermined bending line, controlling the force and speed to avoid cracks or deformation. During the bending process, workers closely observe the deformation of the steel bars to ensure that the bending angle and radius meet the design requirements. After completion, a rigorous inspection and verification are conducted to ensure there are no defects. After bending, the reinforcing bars need to be cleaned and organized, and stored in a designated location for subsequent installation. However, current manual or semi-automatic hydraulic bending machines are designed for single reinforcing bars. These machines have relatively simple structures and are easy to operate, making them suitable for quickly and flexibly completing bending tasks on site. However, their mechanical structures can usually only act on one reinforcing bar within a fixed clamping area and cannot process multiple reinforcing bars at the same time. In large-scale projects with a large number of reinforcing bars, bending them one by one will greatly extend the construction period and affect the overall construction progress. Utility Model Content

[0003] The purpose of this utility model is to provide a bending forming mold for steel truss web members. Multiple straight web members to be bent are placed in the corresponding through holes of the back frame. The double roller feeding assembly feeds the multiple straight web members to the pneumatic push-punch assembly and below the upper pressure arm. After the bending point of the multiple straight web members reaches the upper pressure arm, the control panel drives the pneumatic push-punch assembly to operate, so that the upper pressure arm simultaneously completes the bending of the multiple straight web members, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a steel truss web member bending forming mold, comprising a back frame, a lower roller frame fixed to one side of the back frame surface, multiple through holes opened inside the back frame above the lower roller frame for the web member steel bars to pass through, and a pneumatic push-punch assembly installed on the other side of the back frame surface. The moving end of the pneumatic push-punch assembly is equipped with an upper pressure arm, and a double roller feeding assembly is installed at the top of the lower roller frame below the upper pressure arm. The double roller feeding assembly is used to transport the web member steel bars in the multiple through holes. A control panel is installed on one outer wall of the lower roller frame, and the output end of the control panel is electrically connected to the input end of the pneumatic push-punch assembly and the double roller feeding assembly, respectively.

[0005] Preferably, two mirror-symmetrical bending seats are welded and fixed on the outer wall of the back frame on the side of the through hole near the lower roller frame.

[0006] Preferably, the dual-roller feeding assembly includes a rear support roller, a front support roller, and a stepper motor mounted on the outer wall of one side of the lower roller frame, which are rotatably installed at the front and rear positions inside the lower roller frame. The drive shaft of the stepper motor is fixedly connected to one end of the rear support roller through a coupling, and the input end of the stepper motor is electrically connected to the output end of the control panel.

[0007] Preferably, the pneumatic thrust assembly includes a steel frame fixed to the outer left side of the back frame, a cylinder hinged to one side of the steel frame surface, and an upper swing frame hinged to one side of the back frame surface. A U-shaped connector is fixed to the top of the piston rod of the cylinder, and the U-shaped connector and the lower end of the upper swing frame are hinged to each other. A sliding plate is fixed to the back of the upper pressure arm, and the sliding plate and the back frame slide together. A lower connecting rod is hinged to the top of the sliding plate, and the upper end of the lower connecting rod extends into the interior of the U-shaped connector and is hinged to the U-shaped connector. The input end of the cylinder is electrically connected to the output end of the control panel.

[0008] Preferably, the back of the skateboard has two dovetail slides fixed for sliding cooperation with the back frame.

[0009] Preferably, the bottom end of the upper pressure arm is provided with several equally spaced circular notches.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This steel truss web member bending forming mold, through a structure consisting of a back frame, through holes, a pneumatic pusher assembly, an upper pressure arm, a lower roller frame, and a double-roller feeding assembly, allows multiple straight web members to be placed simultaneously in the corresponding through holes of the back frame, achieving centralized positioning and one-time processing of the steel bars. This centralized operation method greatly reduces the time consumption of bending one bar at a time and avoids the tedious steps of repeated positioning and adjustment. Secondly, the design of the double-roller feeding assembly allows multiple straight web members to be fed into the bending area continuously and quickly, reducing the time spent waiting and ensuring the stability and consistency of the steel bars during transmission, avoiding delays caused by manual operation or mechanical adjustment. Furthermore, the pneumatic pusher assembly drives the downward movement of the upper pressure arm to achieve simultaneous bending of multiple steel bars. This synchronous bending scheme greatly shortens the bending cycle and avoids the time waste caused by bending one bar at a time. Synchronous operation ensures that each steel bar is bent at the same time, reducing workpiece waiting and adjustment time and improving the utilization rate of the bending equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side view sectional structural diagram of the present invention;

[0013] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0016] In the diagram: 1. Back frame; 101. Through hole; 102. Bending seat; 2. Pneumatic pusher assembly; 201. Steel frame; 202. Cylinder; 203. Upper swing frame; 204. Slide plate; 205. U-shaped connector; 206. Lower connecting rod; 3. Upper pressure arm; 301. Circular notch; 4. Lower roller frame; 5. Double roller feeding assembly; 501. Front support roller; 502. Stepper motor; 503. Rear support roller; 6. Control panel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 An embodiment of this utility model is provided: a steel truss web member bending forming mold, including a back frame 1, a lower roller frame 4 fixed on one side of the surface of the back frame 1, a plurality of through holes 101 opened inside the back frame 1 above the lower roller frame 4 for the web member steel bars to pass through, and a pneumatic push-punch assembly 2 installed on the other side of the surface of the back frame 1. The moving end of the pneumatic push-punch assembly 2 is equipped with an upper pressure arm 3, and the bottom end of the upper pressure arm 3 is provided with a plurality of equally spaced circular notches 301.

[0019] A double roller feeding assembly 5 is installed at the top of the lower roller frame 4 below the upper pressure arm 3. The double roller feeding assembly 5 is used to convey the web bar steel bars in multiple through holes 101. A control panel 6 is installed on one side of the outer wall of the lower roller frame 4. The output end of the control panel 6 is electrically connected to the input end of the pneumatic push assembly 2 and the double roller feeding assembly 5 respectively.

[0020] Two mirror-symmetrical bending seats 102 are welded and fixed on the outer wall of the back frame 1 near the lower roller frame 4. The back frame 1 has a sturdy structure, withstands the force generated during bending, and provides sufficient support for the reinforcing bar through the bending seats 102, so that the reinforcing bar is not easy to slip or deform during the bending process.

[0021] The twin-roller feeding assembly 5 includes a rear support roller 503 and a front support roller 501 rotatably installed at the front and rear positions inside the lower roller frame 4, and a stepper motor 502 installed on the outer wall of one side of the lower roller frame 4. The drive shaft of the stepper motor 502 is fixedly connected to one end of the rear support roller 503 through a coupling. The input end of the stepper motor 502 is electrically connected to the output end of the control panel 6. When multiple steel bars are located on the rear support roller 503, the stepper motor 502 is turned on through the control panel 6 to start working. The stepper motor 502 drives the rear support roller 503 to rotate, and the rear support roller 503 sends the steel bars to the front support roller 501 and the upper pressure arm 3, so that multiple steel bars can be fed into the bending area at the same time in one operation, which greatly shortens the preparation time.

[0022] The pneumatic push-impact assembly 2 includes a steel frame 201 fixed on the outer left side of the back frame 1, a cylinder 202 hinged to one side of the surface of the steel frame 201, and an upper swing frame 203 hinged to one side of the surface of the back frame 1. A U-shaped connector 205 is fixed to the top of the piston rod of the cylinder 202. The lower end of the U-shaped connector 205 and the upper swing frame 203 are hinged to each other. A slide plate 204 is fixed to the back of the upper pressure arm 3. The slide plate 204 and the back frame 1 are in sliding engagement. A lower connecting rod 206 is hinged to the top of the slide plate 204. The upper end of the lower connecting rod 206 extends into the interior of the U-shaped connector 205 and is hinged to the U-shaped connector 205. The input end of the cylinder 202 is electrically connected to the output end of the control panel 6. Two dovetail slides for sliding engagement with the back frame 1 are fixed to the back of the slide plate 204.

[0023] When the pneumatic push assembly 2 pushes the upper pressure arm 3 downward, the control panel 6 activates the cylinder 202 to work. The piston rod of the cylinder 202 swings through the upper swing frame 203. Then, the piston rod of the upper swing frame 203 forces the slide plate 204 and the upper pressure arm 3 downward through the lower connecting rod 206 and the U-shaped joint 205. This causes the lower end of the upper pressure arm 3 to be misaligned with the front support roller 501. Consequently, the steel bar located in the circular notch 301 is bent. Thus, the pneumatic push assembly 2 uses air pressure to apply uniform pressure to the upper pressure arm 3 in a very short time, bending multiple steel bars simultaneously.

[0024] In this embodiment, the operator first needs to check the back frame 1, through holes 101, pneumatic pusher assembly 2, upper pressure arm 3, lower roller frame 4, double roller feeding assembly 5, and control panel 6 to ensure that all components are operating normally without any abnormalities or malfunctions, thus avoiding unexpected interruptions or safety hazards during subsequent operations. Then, the operator classifies and arranges the multiple straight bar reinforcements to be bent according to the design specifications, ensuring that the length and bending position of each bar meet the requirements. They are then placed one by one into the corresponding through holes 101 of the back frame 1, using the positioning function of the back frame to ensure the correct position of the reinforcements. After the reinforcements are placed, the operator uses the double roller... The feeding assembly 5 synchronously and smoothly feeds multiple straight web bars into the working area of ​​the pneumatic pusher assembly 2 and the upper pressure arm 3. The operator needs to adjust the parameters on the control panel 6 according to the bending design requirements to control the downward movement distance of the upper pressure arm 3. The pneumatic pusher assembly 2 is activated through the control panel 6, which drives the upper pressure arm 3 to move downward. The upper pressure arm 3 bends multiple steel bars simultaneously. During the bending process, the operator should pay attention to the operating status of the equipment to ensure smooth mechanical movement and avoid steel bar rebound or uneven bending. After the bending is completed, the operator releases the downward pressure of the pneumatic pusher assembly 2 on the upper pressure arm 3 and gradually removes the bent steel bars.

Claims

1. A bending and forming mold for steel truss web members, characterized in that: The device includes a back frame (1), a lower roller frame (4) fixed on one side of the back frame (1), multiple through holes (101) opened inside the back frame (1) above the lower roller frame (4) for the web reinforcement bars to pass through, and a pneumatic push-punch assembly (2) installed on the other side of the back frame (1). The moving end of the pneumatic push-punch assembly (2) is equipped with an upper pressure arm (3). The top of the lower roller frame (4) below the upper pressure arm (3) is equipped with a double roller feeding assembly (5). The double roller feeding assembly (5) is used to transport the web reinforcement bars in the multiple through holes (101). A control panel (6) is installed on one outer wall of the lower roller frame (4). The output end of the control panel (6) is electrically connected to the input end of the pneumatic push-punch assembly (2) and the double roller feeding assembly (5).

2. The bending and forming mold for steel truss web members according to claim 1, characterized in that: Two mirror-symmetrical bending seats (102) are welded and fixed on the outer wall of the back frame (1) on the side of the through hole (101) near the lower roller frame (4).

3. The bending and forming mold for steel truss web members according to claim 1, characterized in that: The double-roller feeding assembly (5) includes a rear support roller (503), a front support roller (501) rotatably installed at the front and rear positions inside the lower roller frame (4), and a stepper motor (502) installed on the outer wall of one side of the lower roller frame (4). The drive shaft of the stepper motor (502) is fixedly connected to one end of the rear support roller (503) through a coupling. The input end of the stepper motor (502) is electrically connected to the output end of the control panel (6).

4. The bending and forming mold for steel truss web members according to claim 1, characterized in that: The pneumatic thrust assembly (2) includes a steel frame (201) fixed on the outer left side of the back frame (1), a cylinder (202) hinged to one side of the surface of the steel frame (201), and an upper swing frame (203) hinged to one side of the surface of the back frame (1). The piston rod of the cylinder (202) is fixed with a U-shaped connector (205). The lower ends of the U-shaped connector (205) and the upper swing frame (203) are hinged to each other. The back of the upper pressure arm (3) is fixed with a sliding plate (204). The sliding plate (204) and the back frame (1) are slidably engaged. The top of the sliding plate (204) is hinged with a lower connecting rod (206). The upper end of the lower connecting rod (206) extends into the interior of the U-shaped connector (205) and is hinged to the U-shaped connector (205). The input end of the cylinder (202) is electrically connected to the output end of the control panel (6).

5. The bending and forming mold for steel truss web members according to claim 4, characterized in that: The back of the slide (204) is fixed with two dovetail slides for sliding cooperation with the back frame (1).

6. The bending and forming mold for steel truss web members according to claim 4, characterized in that: The bottom end of the upper pressure arm (3) is provided with several equally spaced circular notches (301).

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