Reinforcing bar bending machine for construction site

Abstract

The utility model discloses a building site is with reinforcing bar bending machine relates to reinforcing bar processing technical field, including table, the vertical fixed for with reinforcing bar bending place contact round bar on the table, install the clamping block subassembly for to the reinforcing bar one end is carried out clamping or release on the table, the sliding block subassembly for reinforcing bar other end sliding insertion is slidably connected on the table, the clamping block subassembly with sliding block subassembly between sliding connection is used for to the reinforcing bar is bent and is bent axle, the table bottom surface is installed with drive assembly, drive assembly with bent axle transmission connection. The utility model can prevent the reinforcing bar from falling off in the bending process, and then improve work efficiency and security.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, and in particular to a steel bar bending machine for construction sites. Background Technology

[0002] In the field of construction engineering, a large amount of steel bars are needed. These steel bars need to be processed before use, such as cutting and bending.

[0003] In existing technologies, due to insufficient restraint during the bending process, the frequency of steel bars falling off (or flying off) is relatively high, which affects work efficiency, and the falling (or flying off) steel bars can easily cause injury to workers.

[0004] For example, the patent with publication number CN208696150U discloses a manual rebar bending machine. During the bending process, there is no reliable limiting structure on the support shaft, baffle or other components to constrain and limit the rebar, which makes the rebar very easy to fall off (or fly away). After the rebar falls off (or flies away), it needs to be re-clamped, which affects the work efficiency and safety of the bending operation.

[0005] Therefore, it is necessary to develop a steel bar bending machine for construction sites to address the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a steel bar bending machine for construction sites that can prevent steel bars from falling off during the bending process, thereby improving work efficiency and safety.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model discloses a rebar bending machine for construction sites, comprising a table, on which a round rod for contacting the bending point of the rebar is vertically fixed; a clamping block assembly for clamping or releasing one end of the rebar is installed on the table; a slider assembly for slidingly inserting the other end of the rebar is slidably connected to the table; a bending shaft for bending the rebar is slidably connected between the clamping block assembly and the slider assembly; and a drive assembly is installed on the bottom surface of the table, the drive assembly being drivenly connected to the bending shaft.

[0009] Optionally, the clamping block assembly includes a fixed block, a clamping block, and a telescopic rod. The fixed block is fixedly connected to the table, and the clamping block is slidably connected to the table. The bottom end of the clamping block facing the fixed block has a groove for limiting the position of the reinforcing bar. The telescopic rod is fixedly connected to the table through a support plate, and the telescopic end of the telescopic rod is fixedly connected to the side of the clamping block away from the groove.

[0010] Optionally, the top of the fixing block has a slot on the side facing the clamping block, and the top of the clamping block has a protrusion that can be detachably inserted into the slot.

[0011] Optionally, the slider assembly includes a U-shaped slider, a circular block, a cylindrical rod, and a limiting block. A first arc-shaped groove is formed on the table, and a second arc-shaped groove penetrating the table is formed on the bottom wall of the first arc-shaped groove. The groove opening of the U-shaped slider is set downwards. The top end of the circular block is fixedly connected to the bottom end of the U-shaped slider. The circular block is movably disposed in the first arc-shaped groove. The cylindrical rod is fixed to the bottom end of the circular block. The cylindrical rod penetrates the second arc-shaped groove and is fixedly connected to the limiting block. The top end of the limiting block slides in contact with the bottom surface of the table.

[0012] Optionally, a cam groove is provided on the table, and the bottom end of the bending shaft is slidably engaged with the cam groove; the cam groove includes an arc groove coaxial with the round rod and a straight groove communicating with one end of the arc groove, and the side wall of the straight groove is tangent to the corresponding side wall of the arc groove.

[0013] Optionally, the drive assembly includes a drive block, a drive rod, a fixed shaft, a drive wheel, a driven wheel, and a drive motor. The fixed shaft is fixed to the bottom surface of the table and is coaxial with the round rod. The driven wheel is rotatably connected to the fixed shaft. One side of the driven wheel is fixedly connected to one end of the drive rod, and the other end of the drive rod slides through the drive block. The top end of the drive block is fixedly connected to the bottom end of the bending shaft. The drive motor is fixed to the bottom surface of the table via a motor plate. The drive wheel is fixedly connected to the output shaft of the drive motor, and the drive wheel is drively connected to the driven wheel.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] Effective limiting, through the setting of clamping block assembly and slider assembly, can reliably clamp and limit both ends of the steel bar, preventing the steel bar from falling off (flying) during bending, thereby improving work efficiency and safety.

[0016] It saves effort by using a drive motor as the power source for bending, thus saving physical strength and reducing the labor intensity of workers. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention after the reinforcing bars are clamped.

[0019] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention after the steel bar has been bent.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the slider assembly;

[0022] Figure 5 This is a schematic diagram of the structure when the reinforcing bars are removed.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Table; 110. Round rod; 120. First arc groove; 130. Second arc groove; 140. Cam groove;

[0025] 200. Steel bars;

[0026] 300, clamping block assembly; 310, fixing block; 311, slot; 320, clamping block; 321, groove; 322, protrusion; 330, telescopic rod;

[0027] 400. Slider assembly; 410. U-shaped slider; 420. Circular block; 430. Cylindrical rod; 440. Limiting block;

[0028] 500, bending shaft;

[0029] 600, Driver Block;

[0030] 700, drive lever;

[0031] 800, Fixed shaft;

[0032] 900, drive wheel;

[0033] 1000. Driven wheel;

[0034] 1100. Drive motor. Detailed Implementation

[0035] The core of this utility model is to provide a steel bar bending machine for construction sites, which can prevent steel bars from falling off during the bending process, thereby improving work efficiency and safety.

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In one specific embodiment of this utility model, such as Figures 1-5 As shown, the table includes a table 100, on which a round rod 110 is vertically fixed for contacting the bent part of the reinforcing bar 200. A clamping block assembly 300 for clamping or releasing one end of the reinforcing bar 200 is installed on the table 100. A slider assembly 400 for sliding insertion of the other end of the reinforcing bar 200 is slidably connected to the table 100. A bending shaft 500 for bending the reinforcing bar 200 is slidably connected between the clamping block assembly 300 and the slider assembly 400. A driving assembly is installed on the bottom surface of the table 100 and is connected to the bending shaft 500 in a transmission manner.

[0039] In one specific embodiment of this utility model, such as Figure 1 , 3 As shown in Figure 5, the clamping block assembly 300 includes a fixed block 310, a clamping block 320, and a telescopic rod 330. The fixed block 310 is fixedly connected to the table 100, and the clamping block 320 is slidably connected to the table 100. A groove 321 for limiting the movement of the reinforcing bar 200 is provided at the bottom end of the clamping block 320 facing the fixed block 310. The telescopic rod 330 is fixedly connected to the table 100 via a support plate, and the telescopic end of the telescopic rod 330 is fixedly connected to the side of the clamping block 320 away from the groove 321. The telescopic rod 330 can be an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0040] In one specific embodiment of this utility model, such as Figure 1 , 3 As shown in Figure 5, a slot 311 is provided on the side of the fixed block 310 facing the clamping block 320, and a protrusion 322 is provided on the top of the clamping block 320. The protrusion 322 is detachably inserted into the slot 311. By inserting the protrusion 322 into the slot 311, the upward bending force on the telescopic end of the telescopic rod 330 can be reduced when bending, thus extending the service life of the telescopic rod 330. In addition, a dovetail groove or a T-shaped groove can be provided on the table 100, and a protrusion matching the dovetail groove or T-shaped groove can be provided at the bottom of the clamping block 320. By sliding the protrusion with the dovetail groove or T-shaped groove, the upward bending force on the telescopic end of the telescopic rod 330 can be avoided when bending.

[0041] In one specific embodiment of this utility model, such as Figures 1-5As shown, the slider assembly 400 includes a U-shaped slider 410, a circular block 420, a cylindrical rod 430, and a limiting block 440. A first arc-shaped groove 120 is formed on the table 100, and a second arc-shaped groove 130 penetrating the table 100 is formed on the bottom wall of the first arc-shaped groove 120. The groove opening of the U-shaped slider 410 faces downwards. The top end of the circular block 420 is fixedly connected to the bottom end of the U-shaped slider 410, and the circular block 420 is movably disposed within the first arc-shaped groove 120. The cylindrical rod 430 is fixed to the bottom end of the circular block 420, and the cylindrical rod 430 penetrates the second arc-shaped groove 130 and is fixedly connected to the limiting block 440. The top end of the limiting block 440 slides in contact with the bottom surface of the table 100. Through the slider assembly 400, the other end of the reinforcing bar 200 can be effectively limited, allowing it to move stably with the movement of the bending shaft 500 during bending.

[0042] In one specific embodiment of this utility model, such as Figures 1-3 As shown in Figure 5, a cam groove 140 is provided on the table 100, and the bottom end of the bending shaft 500 slides in engagement with the cam groove 140. The cam groove 140 includes an arc groove coaxial with the round rod 110 and a straight groove connected to one end of the arc groove. The side wall of the straight groove is tangent to the corresponding side wall of the arc groove. This design of the cam groove 140 allows the bending shaft 500 to have a specific trajectory during movement, which can better realize the bending operation and removal of the reinforcing bar 200.

[0043] In one specific embodiment of this utility model, such as Figure 2 As shown, the drive assembly includes a drive block 600, a drive rod 700, a fixed shaft 800, a drive wheel 900, a driven wheel 1000, and a drive motor 1100. The fixed shaft 800 is fixed to the bottom surface of the table 100 and is coaxial with the round rod 110. The driven wheel 1000 is rotatably connected to the fixed shaft 800. One side of the driven wheel 1000 is fixedly connected to one end of the drive rod 700, and the other end of the drive rod 700 slides through the drive block 600. The top end of the drive block 600 is fixedly connected to the bottom end of the bending shaft 500. The drive motor 1100 is fixed to the bottom surface of the table 100 through a motor plate. The drive wheel 900 is fixedly connected to the output shaft of the drive motor 1100, and the drive wheel 900 is connected to the driven wheel 1000 in a transmission connection. The driving wheel 900 and the driven wheel 1000 can be sprockets or pulleys, connected by a chain or belt drive. The driving wheel 900 can be a gear, and the driven wheel 1000 has multiple teeth on its circumference, allowing the driving wheel 900 and the driven wheel 1000 to mesh and transmit power. The drive assembly provides power for the movement of the bending shaft 500. The driving motor 1100 drives the driving wheel 900, which in turn drives the driven wheel 1000, thereby causing the drive rod 700 and the drive block 600 to move, ultimately achieving the sliding of the bending shaft 500.

[0044] The working process of a steel bar bending machine for construction sites according to this utility model:

[0045] Reinforcing bar placement and clamping, such as Figure 1 As shown, place one end of the rebar 200 to be bent between the fixing block 310 and the clamping block 320 of the clamping block assembly 300. Manually operate the U-shaped slider 410 to align the port of its U-shaped groove with the end of the rebar 200. Insert the other end of the rebar 200 into the groove of the U-shaped slider 410 of the slider assembly 400. Activate the telescopic rod 330 to extend its telescopic end, pushing the clamping block 320 towards the fixing block 310 until the groove 321 on the clamping block 320 is tightly fitted with the rebar 200. At the same time, the protrusion 322 at the top of the clamping block 320 is inserted into the slot 311 at the top of the fixing block 310, thus completing the clamping of the rebar 200.

[0046] Rebar bending operations, such as Figure 2 As shown, when the drive motor 1100 is started, the output shaft of the drive motor 1100 drives the drive wheel 900 to rotate. The drive wheel 900 is connected to the driven wheel 1000, thereby causing the driven wheel 1000 to rotate around the fixed shaft 800. When the driven wheel 1000 rotates, it drives the drive rod 700, which is fixedly connected to it, to move. The drive rod 700 slides in the drive block 600. At the same time, the bending shaft 500, which is fixed at the top of the drive block 600, slides in the cam groove 140 on the table 100. When the bending shaft 500 moves along the straight groove to the point where it is tangent to the arc groove, it begins to move along the arc groove, cooperating with the round rod 110 to perform a bending operation on the steel bar 200.

[0047] Reinforcing bar release, such as Figure 5 As shown, after bending is completed, the drive motor 1100 reverses to reset the bending shaft 500; the telescopic end of the telescopic rod 330 retracts, causing the clamping block 320 to move away from the fixed block 310, releasing the clamping on one end of the reinforcing bar 200, and then the end of the reinforcing bar 200 away from the U-shaped slider 410 is rotated upward to pull the reinforcing bar 200 out of the U-shaped slider 410, completing one bending operation.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A steel bar bending machine for construction sites, comprising a table (100), wherein a round rod (110) for contacting the bending point of a steel bar (200) is vertically fixed on the table (100), characterized in that, The table (100) is equipped with a clamping block assembly (300) for clamping or releasing one end of the reinforcing bar (200). The table (100) is slidably connected to a slider assembly (400) for sliding insertion of the other end of the reinforcing bar (200). A bending shaft (500) for bending the reinforcing bar (200) is slidably connected between the clamping block assembly (300) and the slider assembly (400). A driving assembly is installed on the bottom surface of the table (100), and the driving assembly is connected to the bending shaft (500) in a transmission manner.

2. The steel bar bending machine for construction sites according to claim 1, characterized in that: The clamping block assembly (300) includes a fixed block (310), a clamping block (320), and a telescopic rod (330). The fixed block (310) is fixedly connected to the table (100), and the clamping block (320) is slidably connected to the table (100). The bottom end of the clamping block (320) facing the fixed block (310) has a groove (321) for limiting the position of the reinforcing bar (200). The telescopic rod (330) is fixedly connected to the table (100) through a support plate, and the telescopic end of the telescopic rod (330) is fixedly connected to the side of the clamping block (320) away from the groove (321).

3. The steel bar bending machine for construction sites according to claim 2, characterized in that: The top of the fixing block (310) facing the clamping block (320) has a slot (311), and the top of the clamping block (320) has a protrusion (322), which is detachably inserted into the slot (311).

4. The steel bar bending machine for construction sites according to claim 1, characterized in that: The slider assembly (400) includes a U-shaped slider (410), a round block (420), a cylindrical rod (430), and a limiting block (440). A first arc-shaped groove (120) is provided on the table (100), and a second arc-shaped groove (130) penetrating the table (100) is provided on the bottom wall of the first arc-shaped groove (120). The groove opening of the U-shaped slider (410) is set downward. The top end of the round block (420) is fixedly connected to the bottom end of the U-shaped slider (410). The round block (420) is movably disposed in the first arc-shaped groove (120). The cylindrical rod (430) is fixed to the bottom end of the round block (420). The cylindrical rod (430) penetrates the second arc-shaped groove (130) and is fixedly connected to the limiting block (440). The top end of the limiting block (440) slides in contact with the bottom surface of the table (100).

5. The steel bar bending machine for construction sites according to claim 1, characterized in that: The table (100) is provided with a cam groove (140), and the bottom end of the bending shaft (500) is slidably engaged with the cam groove (140); the cam groove (140) includes an arc groove coaxial with the round rod (110) and a straight groove connected to one end of the arc groove, and the side wall of the straight groove is tangent to the side wall of the arc groove.

6. The steel bar bending machine for construction sites according to claim 5, characterized in that: The drive assembly includes a drive block (600), a drive rod (700), a fixed shaft (800), a drive wheel (900), a driven wheel (1000), and a drive motor (1100). The fixed shaft (800) is fixed to the bottom surface of the table (100) and is coaxial with the round rod (110). The driven wheel (1000) is rotatably connected to the fixed shaft (800), and one side of the driven wheel (1000) is connected to the drive rod (900). One end of the drive rod (700) is fixedly connected, and the other end of the drive rod (700) slides through the drive block (600). The top end of the drive block (600) is fixedly connected to the bottom end of the bending shaft (500). The drive motor (1100) is fixed to the bottom surface of the table (100) through the motor plate. The drive wheel (900) is fixedly connected to the output shaft of the drive motor (1100). The drive wheel (900) is connected to the driven wheel (1000) in a transmission connection.

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