Steel bar bender

Abstract

The utility model provides a steel bar bender, and belongs to the technical field of machining equipment. Comprising a workbench, a working panel is arranged at the top of the workbench, a bending disc is rotationally arranged on the working panel, a plurality of second mounting holes are vertically formed in the edge of the bending disc, the second mounting holes are evenly formed in the circumferential direction of the bending disc at intervals, and first positioning pins are movably inserted into the second mounting holes; a first travel switch and a second travel switch which are used for controlling the driving piece to stop are arranged on the working panel in the circumferential direction of the bending disc at intervals, and a first positioning pin on the bending disc makes contact with the second travel switch on the working panel so that the bending disc can reset and stop at the initial position. The first positioning pins are inserted into the second mounting holes in different positions of the bending disc, so that the rotating angle of the initial position of the bending disc can be adjusted, and the effects that more forms of reinforcing steel bars can be machined, and more bending operations can be conducted on the reinforcing steel bars are achieved.

Description

Technical Field

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

[0002] The rebar bending machine is a device used to bend rebars. Rebars are widely used in the construction field. Rebars often need to be bent into various shapes when used or tested. The rebar bending is completed by a rebar bending machine. The rebar bending machine is equipped with a bending mold. The rebar is pressed by the bending mold of the rebar bending machine to form the required shape.

[0003] The patent with announcement number CN201168753Y discloses a steel bar bending machine, which includes a feeding roller, square steel, a working panel, a pile head, a material blocking plate, a center column, a square steel seat, a double-headed screw, etc. The installation of the square steel consists of a square steel seat, a double-headed screw, and a nut. The square steel cooperates with the square steel seat, and the square steel seat is fixed to the reduction box panel. The end thread of the square steel cooperates with a double-headed screw for horizontally adjusting the position of the square steel, and a nut matched with the double-headed screw. The square steel has a sliding groove assembled on the square steel seat, and the lateral position of the square steel can be adjusted by rotating the nut.

[0004] At present, in the process of bending steel bars, the rebar bending machine controls the bending amount by having the structure on the bending disk touch the travel switch on the working panel during the rotation process to stop the rotation of the bending disk. After the bending is completed, the bending disk rotates back to the initial position. The initial position of the bending disk is determined by factors such as the installation position of the drive motor at the beginning of the design of the rebar bending machine and cannot be adjusted, which limits the processing range of the rebar bending machine. Utility Model Content

[0005] In view of the above problems, the utility model provides a steel bar bending machine.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] A steel bar bending machine is provided, comprising a workbench, the top of the workbench is set as a work panel, a bending disk is rotatably arranged on the work panel, a central mold column is coaxially arranged on the top of the bending disk, a plurality of first mounting holes are opened on the bending disk, a movable mold column is inserted into the first mounting hole, a driving member for driving the bending disk to rotate is arranged in the workbench, a second mounting hole is vertically opened on the edge of the bending disk, a plurality of second mounting holes are evenly spaced along the circumference of the bending disk, a first positioning pin is movably inserted into the second mounting hole, a positioning member is further arranged on the edge of the bending disk, and a first travel switch and a second travel switch for controlling the driving member to stop are spaced along the circumference of the bending disk on the work panel;

[0008] When the bending disk rotates and bends the steel bar, the positioning member can cooperate with the first travel switch to stop the rotation of the bending disk;

[0009] During the rotation and resetting process of the bending disk, the first positioning pin can cooperate with the second travel switch to stop the rotation of the bending disk.

[0010] Furthermore, the positioning member includes a positioning block and a second positioning pin. The edge of the top wall of the bending disk is provided with an overlapping step. The positioning block is overlapped on the overlapping step. The positioning block protrudes out of the outer edge of the bending disk. The positioning block is provided with a third mounting hole that can be aligned with the second mounting hole. The second positioning pin is simultaneously inserted into the second mounting hole and the third mounting hole.

[0011] Furthermore, a protective cover is provided on the working panel, and one side edge of the bottom of the protective cover is hinged to the working panel. A housing cavity for accommodating the bending disk, the first travel switch and the second travel switch is provided at the bottom of the protective cover, and a movable hole for the central mold column and the movable mold column to pass through and for the movable mold column to move is provided at the top of the protective cover.

[0012] Furthermore, a handle is provided at one end of the protective cover away from the hinge axis thereof.

[0013] Furthermore, an operating cavity is concavely arranged on the side surface of the workbench, and an operating panel is arranged in the operating cavity.

[0014] Furthermore, the operating panel is arranged to be inclined from top to bottom toward the inside of the operating cavity, and the bottom wall of the operating cavity is provided with a water guide surface, which is arranged to be inclined from top to bottom toward the outside of the operating cavity.

[0015] The beneficial effects of the utility model are as follows: the first positioning pin on the bending disk is in contact with the second travel switch on the working panel so that the bending disk is reset and stopped at the initial position. By inserting the first positioning pin into the second mounting hole at different positions on the bending disk, the rotation angle of the initial position of the bending disk can be adjusted to facilitate the processing of more forms of steel bars and perform more bending operations on the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the steel bar bending machine according to an embodiment of the present application.

[0017] Figure 2 This is a schematic diagram of the structure of the steel bar bending machine after removing the protective cover according to an embodiment of the present application.

[0018] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0019] Among them, 1. workbench; 11. work panel; 2. bending disk; 21. center mold column; 22. first mounting hole; 23. movable mold column; 24. second mounting hole; 25. overlapping step; 3. first positioning pin; 41. positioning block; 411. third mounting hole; 42. second positioning pin; 5. first travel switch; 6. third travel switch; 7. protective cover; 71. movable hole; 72. handle; 81. operation panel; 82. water guide surface. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The present application embodiment discloses a steel bar bending machine, referring to Figure 1 , Figure 2 and Figure 3 , including a workbench 1, the top of the workbench 1 is set as a horizontal work panel 11, a bending disk 2 is rotatably installed on the work panel 11, the top wall of the bending disk 2 is circular, the bending disk 2 is coaxially rotatably arranged on the workbench 1, and a driving member for driving the bending disk 2 to rotate is provided in the workbench 1, and the driving member is specifically a driving motor, and the driving motor is connected to the bending disk 2 in a transmission manner. A central mold column 21 and a movable mold column 23 are provided on the top wall of the bending disk 2, the central mold column 21 is coaxial with the bending disk 2, and a plurality of first mounting holes 22 are vertically opened on the bending disk 2, the movable mold column 23 is plugged into the first mounting hole 22, and a bending mold cavity for placing steel bars is formed between the movable mold column 23 and the central mold column 21. By plugging the movable mold column 23 into different first mounting holes 22, steel bars of different lengths can be bent.

[0022] A second mounting hole 24 is provided on the edge of the bending disk 2, and the second mounting hole 24 vertically penetrates the bending disk 2. The first mounting disk is provided with a plurality of holes evenly disposed on the edge of the bending disk 2 along the circumference of the bending disk 2. A first positioning pin 3 is movably inserted in the second mounting hole 24, and a positioning member is also fixedly installed on the edge of the bending disk 2. A first travel switch 5 and a second travel switch are fixedly installed on the working panel 11 along the circumference of the bending disk 2 at intervals. The contact of the first travel switch 5 can contact with the positioning member and be offset from the first positioning pin 3. The contact of the second travel switch can contact with the first positioning pin 3 and be offset from the positioning member. A controller is provided in the workbench 1, and the first travel switch 5, the second travel switch and the driving member are all electrically connected to the controller. When the first travel switch 5 and / or the second travel switch are back-triggered, the driving member is controlled to stop working through the controller.

[0023] In the embodiment of the present application, when the bending disk 2 is in the initial position, the first positioning pin 3 is in contact with the contact of the second travel switch. When the driving member starts and drives the bending disk 2 to rotate and bend the steel bar, until the positioning member contacts the first travel switch 5, the driving member stops working to stop the bending disk 2 from rotating. At this time, the bending disk 2 is in the state after the steel bar is bent into place. After the steel bar is bent, the steel bar is removed from the steel bar bending machine, and the controller controls the driving member to reverse, so that the bending disk 2 rotates and resets. After the bending disk 2 rotates until the first positioning pin 3 on it contacts the second travel switch, the controller controls the driving member to stop the action. At this time, the bending disk 2 is in the initial position after resetting. By replacing the first positioning pin 3 in a different second mounting hole 24 on the bending disk 2, the initial position of the bending disk 2 can be adjusted, which is convenient for the steel bar bending machine to perform different steel bar bending processes.

[0024] In the embodiment of the present application, the positioning member includes a positioning block 41 and a second positioning pin 42. The positioning block 41 overlaps the edge of the bending disk 2. The positioning block 41 is provided with a third mounting hole 411 adapted to the second mounting hole 24 on the edge of the bending disk 2. The second positioning pin 42 can be inserted into the second mounting hole 24 and the third mounting hole 411 at the same time to fix the positioning block 41. Furthermore, an overlapping step 25 is provided on the edge of the top wall of the bending disk 2. The second mounting holes 24 on the bending disk 2 are all provided on the overlapping step 25, so that the first positioning pin 3 and the positioning block 41 are both installed on the overlapping step 25. When the first positioning pin 3, the positioning block 41 and the second positioning pin 42 are installed on the overlapping step 25, the height of the top of the first positioning pin 3 and the top of the second positioning pin 42 are both lower than the top wall of the bending disk 2, which can avoid the first positioning pin 3 and the positioning block 41 from interfering with the steel bar during the bending process.

[0025] In the embodiment of the present application, the first positioning pin 3 extends below the bending disk 2 after passing through the second mounting hole 24, the positioning block 41 extends to the outside of the bending disk 2, and the contact of the second travel switch extends below the bending disk 2 to contact the first positioning pin 3. The contact of the first travel switch 5 is located on the outside of the bending disk 2 to contact the portion of the positioning block 41 protruding from the bending disk 2. In the embodiment of the present application, there are three third mounting devices on the positioning block 41, and the positioning block 41 is fixed at the same time by two second positioning pins 42 to ensure the installation stability of the positioning block 41.

[0026] In the embodiment of the present application, a protective cover 7 is also provided on the working panel 11. The protective cover 7 is made of sheet metal. The first side edge of the protective cover 7 is hinged to the edge of the working panel 11. The protective cover 7 is provided with a receiving wall on the side facing the working panel 11. The receiving cavity can contain the bending disk 2, the first travel switch 5 and the second travel switch. The top wall of the protective cover 7 is penetrated with a movable hole 71. When the protective cover 7 is rotated and laid flat on the working panel 11, the movable hole 71 is coaxial with the bending disk 2, and the central mold column 21 and the movable mold column 23 on the bending disk 2 are exposed, and the movable mold column 23 can be rotated inside with the bending disk 2. The diameter of the movable hole 71 should not be larger than the diameter of the bending disk 2, so that the first travel switch 5 and the second travel switch are blocked inside, thereby protecting the first travel switch 5 and the second travel switch from being eroded by rainwater in a rainy environment.

[0027] Furthermore, a handle 72 is provided at one end of the protective cover 7 away from its hinge axis, so that a worker can conveniently hold the handle 72 to flip the protective cover 7 upward.

[0028] In the embodiment of the present application, the side of the workbench 1 is concavely provided with an operating cavity, and an operating panel 81 is provided in the operating cavity, and a switch group for controlling the action of the driving member is provided on the operating panel 81. In order to prevent the operating panel 81 from being eroded by rain when the steel bar bending machine is working outdoors, in the embodiment of the present application, the operating panel 81 is tilted from top to bottom toward the inside of the operating cavity, which can effectively prevent rain from falling on the operating panel 81. The bottom wall of the operating cavity is provided with a water guide surface 82, which is tilted from top to bottom toward the outside of the operating cavity, and can timely drain rainwater that falls into the operating cavity.

[0029] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A steel bar bending machine, comprising a workbench (1), the top of the workbench (1) being a work panel (11), a bending disc (2) being rotatably arranged on the work panel (11), a center mold column (21) being coaxially arranged on the top of the bending disc (2), a plurality of first mounting holes (22) being opened on the bending disc (2), a movable mold column (23) being inserted into the first mounting hole (22), characterized in that: A driving member for driving the bending disk (2) to rotate is arranged in the workbench (1); a second mounting hole (24) is vertically opened on the edge of the bending disk (2); a plurality of the second mounting holes (24) are evenly spaced along the circumference of the bending disk (2); a first positioning pin (3) is movably inserted in the second mounting hole (24); a positioning member is also arranged on the edge of the bending disk (2); and a first travel switch (5) and a second travel switch for controlling the stopping of the driving member are spaced along the circumference of the bending disk (2) on the working panel (11); During the process of the bending disk (2) rotating and bending the steel bar, the positioning member can cooperate with the first travel switch (5) to stop the rotation of the bending disk (2); During the rotation and resetting process of the bending disk (2), the first positioning pin (3) can cooperate with the second travel switch to stop the rotation of the bending disk (2).

2. A steel bar bending machine according to claim 1, characterized in that: The positioning member comprises a positioning block (41) and a second positioning pin (42); an edge of the top wall of the bending disk (2) is provided with an overlapping step (25); the positioning block (41) is overlapped on the overlapping step (25); the positioning block (41) protrudes from the outer edge of the bending disk (2); a third mounting hole (411) which can be aligned with the second mounting hole (24) is provided on the positioning block (41); and the second positioning pin (42) is simultaneously inserted into the second mounting hole (24) and the third mounting hole (411).

3. A steel bar bending machine according to claim 2, characterized in that: A protective cover (7) is provided on the working panel (11), one side edge of the bottom of the protective cover (7) is hinged to the working panel (11), a receiving cavity for receiving the bending disk (2), the first travel switch (5) and the second travel switch is provided at the bottom of the protective cover (7), and a movable hole (71) is provided at the top of the protective cover (7) for the central mold column (21) and the movable mold column (23) to pass through and for the movable mold column (23) to move.

4. A steel bar bending machine according to claim 3, characterized in that: A handle (72) is provided at one end of the protective cover (7) away from its hinge axis.

5. A steel bar bending machine according to claim 1, characterized in that: An operating cavity is provided in a concave shape on the side surface of the workbench (1), and an operating panel (81) is provided in the operating cavity.

6. A steel bar bending machine according to claim 5, characterized in that: The operating panel (81) is arranged obliquely from top to bottom toward the inside of the operating cavity, and the bottom wall of the operating cavity is provided with a water guide surface (82), and the water guide surface (82) is arranged obliquely from top to bottom toward the outside of the operating cavity.

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