A steel bar cutting device

Abstract

This utility model discloses a rebar cutting device, comprising: a base, a roller frame fixedly connected to the upper surface of the base, a driven roller and a rotating shaft rotatably connected to the inner side wall of the roller frame, a lower limiting wheel fixedly connected to the outer surface of the rotating shaft, a lower cutting blade fixedly connected to the middle of the base, a fixing frame fixedly connected to the upper surface of the base, and conveying mechanisms provided at both ends of the roller frame. Through the limiting frame, guide frame, spring, and limiting wheel on both sides of the cutting blade, the device not only facilitates the pre-fixation of the rebar on both sides of the cutting blade before cutting, thereby improving the stability of the rebar during cutting and thus improving the cutting quality, but also guides the conveying of the rebar, improving the uniformity of the spacing during the conveying process, facilitating the uniformity of stress on the cutting blade, avoiding local overload, and thus extending the service life of the cutting blade.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and in particular to a steel bar cutting device. Background Technology

[0002] In the field of construction, steel bars are an important building material, and their processing quality directly affects the stability of building structures. Steel bar cutting equipment is a special machine used to cut steel bars to a fixed length. By precisely controlling the cutting length, the steel bars can meet the construction requirements of different building components. Its main function is to improve the efficiency and accuracy of steel bar processing, reduce errors and labor intensity of manual cutting, and ensure the standardization and safety of steel bar use in construction. It is an indispensable piece of equipment in industrialized construction production.

[0003] Traditional rebar cutting equipment typically includes a frame, a cutting blade mounted on the frame, a drive device for moving the cutting blade, and a conveying mechanism for transporting the rebar. However, existing equipment can only position or clamp the rebar on one side of the cutting blade to a limited extent when cutting rebar, and cannot effectively fix and limit the rebar on both sides of the cutting blade simultaneously. The rebar is prone to misalignment and displacement during cutting, which not only affects the cutting accuracy, resulting in the cut rebar length not meeting design requirements and increasing the scrap rate, but also causes the rebar to bend, twist, and deform under shearing force, reducing the quality and performance of the rebar. After searching, it was found that the technical solution provided by the utility model application with application number CN202323491768.7 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a steel bar cutting device that facilitates the pre-fixation of the steel bars on both sides of the cutting blade before the cutting blade cuts the steel bars, thereby improving the stability of the steel bars when the cutting blade cuts the steel bars.

[0005] To achieve the above objectives, a rebar cutting device is provided, comprising: a base, a roller frame fixedly connected to the upper surface of the base, a driven roller and a rotating shaft rotatably connected to the inner side wall of the roller frame, a lower limit wheel fixedly connected to the outer surface of the rotating shaft, a lower cutting blade fixedly connected to the middle of the base, a fixing frame fixedly connected to the upper surface of the base, and conveying mechanisms provided at both ends of the roller frame.

[0006] A lifting motor is fixedly connected to the upper surface of the fixed frame. A screw is fixedly connected to the output end of the lifting motor. A lifting frame is threaded onto the outer surface of the screw. A hydraulic rod is fixedly connected to the upper surface of the lifting frame. An upper cutting blade is fixedly connected to the output end of the hydraulic rod through the lifting frame. Limiting frames are fixedly connected to both sides of the lifting frame. A spring is fixedly connected to the upper inner wall of the limiting frame. A guide frame is fixedly connected to the lower end of the spring. A wheel frame is fixedly connected to the lower surface of the guide frame. An upper limit wheel is rotatably connected to the inner side wall of the wheel frame.

[0007] According to the aforementioned rebar cutting equipment, the conveying mechanism includes a drive frame, an electric telescopic rod, a slider, a drive motor, and a conveying roller. The lower inner wall of the drive frame is fixedly connected to the electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to the slider, the front side wall of the slider is fixedly connected to the drive motor, and the output end of the drive motor is fixedly connected to the conveying roller, which facilitates the conveying and output of rebar.

[0008] According to the aforementioned rebar cutting device, the outer surface of the slider is slidably connected to the drive frame, the outer surfaces of both ends of the conveying roller are rotatably connected to the slider, and the lower surface of the drive frame is fixedly connected to the base, which facilitates the adjustment of the height of the conveying roller to meet the conveying of rebars of different specifications.

[0009] According to the aforementioned rebar cutting device, a bracket is fixedly connected to the lower surface of the base, and the bracket consists of four brackets arranged in a rectangular array.

[0010] According to the aforementioned rebar cutting device, the lower end of the screw extends through the base to the bottom of the base, and a synchronous pulley is fixedly connected to the lower end of the screw. The synchronous pulleys are driven by a synchronous belt, which facilitates the connection of the two screws and realizes the synchronous rotation of the two screws.

[0011] According to the aforementioned rebar cutting equipment, the outer surface of the screw is rotatably connected to the fixed frame, the outer surface of the lifting frame is slidably connected to the fixed frame, and the outer surface of the screw base is rotatably connected to the base, which facilitates the rotation of the screw to drive the lifting frame to rise and fall.

[0012] According to the aforementioned rebar cutting device, a guide rod is fixedly connected to the upper surface of the upper cutting blade, and the outer surface of the guide rod is slidably connected to the lifting frame, which facilitates the guidance of the movement of the upper cutting blade and improves the stability of the upper cutting blade.

[0013] According to the aforementioned rebar cutting device, the outer surface of the guide frame is slidably connected to the limiting frame, and the position of the upper limiting wheel corresponds to that of the lower limiting wheel.

[0014] The above solution has the following beneficial effects: By setting the limiting frame, guide frame, spring and limiting wheel on both sides of the cutting blade, it is not only convenient to pre-fix the steel bars on both sides of the cutting blade before the cutting blade cuts the steel bars, thereby improving the stability of the steel bars when the cutting blade cuts the steel bars, and thus improving the cutting quality of the steel bars, but also to guide the conveying of the steel bars, improve the uniformity of the spacing during the conveying process, facilitate the improvement of the uniformity of the stress on the cutting blade, avoid local overload, and thus extend the service life of the cutting blade.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall structural diagram of a steel bar cutting device according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the overall structure of a steel bar cutting device according to this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional schematic diagram of the lifting frame of a steel bar cutting device according to this utility model.

[0021] Legend:

[0022] 1. Base; 2. Roller frame; 3. Driven roller; 4. Rotating shaft; 5. Lower limit wheel; 6. Fixing frame; 7. Lifting motor; 8. Screw; 9. Lifting frame; 10. Hydraulic rod; 11. Upper cutting blade; 12. Limiting frame; 13. Spring; 14. Guide frame; 15. Wheel frame; 16. Upper limit wheel; 17. Lower cutting blade; 18. Drive frame; 19. Electric telescopic rod; 20. Slider; 21. Drive motor; 22. Conveyor roller; 23. Support; 24. Synchronous pulley; 25. Synchronous belt; 26. Guide rod. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4This utility model provides a rebar cutting device, comprising: a base 1, a bracket 23 fixedly connected to the lower surface of the base 1, the bracket 23 being four in a rectangular array, a roller frame 2 fixedly connected to the upper surface of the base 1, a driven roller 3 and a rotating shaft 4 rotatably connected to the inner side wall of the roller frame 2, a lower limit wheel 5 fixedly connected to the outer surface of the rotating shaft 4, a lower cutting blade 17 fixedly connected to the middle of the base 1, a fixing frame 6 fixedly connected to the upper surface of the base 1, and conveying mechanisms provided at both ends of the roller frame 2.

[0025] A lifting motor 7 is fixedly connected to the upper surface of the fixed frame 6. A screw 8 is fixedly connected to the output end of the lifting motor 7. The lower end of the screw 8 extends through the base 1 to the bottom of the base 1. A synchronous pulley 24 is fixedly connected to the lower end of the screw 8. The synchronous pulleys 24 are driven by a synchronous belt 25. The synchronous pulleys 24 and the synchronous belt 25 are provided with meshing teeth to facilitate the synchronous rotation of the two screws 8. A lifting frame 9 is threadedly connected to the outer surface of the screw 8. The outer surface of the screw 8 is rotatably connected to the fixed frame 6, and the outer surface of the lifting frame 9 is slidably connected to the fixed frame 6. The outer surface of the base 1 of the screw 8 is rotatably connected to the base 1. A hydraulic rod 10 is fixedly connected to the upper surface of the lifting frame 9. The output end of the upper cutting blade 11 is fixedly connected to the lifting frame 9. The upper surface of the upper cutting blade 11 is fixedly connected to the guide rod 26. The outer surface of the guide rod 26 is slidably connected to the lifting frame 9 to facilitate the movement of the upper cutting blade 11 and improve the stability of the movement of the upper cutting blade 11. Limiting frames 12 are fixedly connected to both sides of the lifting frame 9. Springs 13 are fixedly connected to the upper inner wall of the limiting frame 12. The lower end of the springs 13 is fixedly connected to the guide frame 14. The outer surface of the guide frame 14 is slidably connected to the limiting frame 12. A wheel frame 15 is fixedly connected to the lower surface of the guide frame 14. An upper limit wheel 16 is rotatably connected to the inner side wall of the wheel frame 15. The position of the upper limit wheel 16 corresponds to that of the lower limit wheel 5.

[0026] The conveying mechanism includes a drive frame 18, an electric telescopic rod 19, a slider 20, a drive motor 21, and a conveying roller 22. The lower inner wall of the drive frame 18 is fixedly connected to the electric telescopic rod 19. The output end of the electric telescopic rod 19 is fixedly connected to the slider 20. The front side wall of the slider 20 is fixedly connected to the drive motor 21. The output end of the drive motor 21 is fixedly connected to the conveying roller 22. The outer surface of the slider 20 is slidably connected to the drive frame 18. The outer surfaces of both ends of the conveying roller 22 are rotatably connected to the slider 20. The lower surface of the drive frame 18 is fixedly connected to the base 1.

[0027] Working principle: The reinforcing bar is placed on the driven roller 3, passes between the two cutting blades, and corresponds to the position of the lower limit wheel 5. The electric telescopic rod 19 drives the slider 20 to move and press the reinforcing bar. The drive motor 21 drives the conveying roller 22 to rotate and transport the reinforcing bar. The lifting motor 7 drives the screw 8 to rotate. The rotation of the screw 8 drives the lifting frame 9 to move, thereby driving the limit frame 12 to move and the upper limit wheel 16 to move downward. Together with the lower limit wheel 5, the upper limit wheel 16 clamps the reinforcing bar and restricts its position. The spring 13 can buffer the force on the upper limit wheel 16 to ensure that the upper limit wheel 16 is always in contact with the reinforcing bar and ensures the restriction of the reinforcing bar. The hydraulic rod 10 drives the upper cutting blade 11 to move downward. Under the action of the lower cutting blade 17, the reinforcing bar is cut. The hydraulic rod 10 drives the upper cutting blade 11 to rise. The reinforcing bar is then output from the base 1 by the rotation of the right conveying roller 22. The left conveying roller 22 transports the reinforcing bar for recutting.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A steel bar cutting device, comprising: The base (1) is characterized in that a roller frame (2) is fixedly connected to the upper surface of the base (1), a driven roller (3) and a rotating shaft (4) are rotatably connected to the inner side wall of the roller frame (2), a lower limit wheel (5) is fixedly connected to the outer surface of the rotating shaft (4), a lower cutting blade (17) is fixedly connected to the middle part of the base (1), a fixing frame (6) is fixedly connected to the upper surface of the base (1), and a conveying mechanism is provided at both ends of the roller frame (2). A lifting motor (7) is fixedly connected to the upper surface of the fixed frame (6). A screw (8) is fixedly connected to the output end of the lifting motor (7). A lifting frame (9) is threadedly connected to the outer surface of the screw (8). A hydraulic rod (10) is fixedly connected to the upper surface of the lifting frame (9). An upper cutting blade (11) is fixedly connected to the output end of the hydraulic rod (10) through the lifting frame (9). Limiting frames (12) are fixedly connected to both sides of the lifting frame (9). A spring (13) is fixedly connected to the upper inner wall of the limiting frame (12). A guide frame (14) is fixedly connected to the lower end of the spring (13). A wheel frame (15) is fixedly connected to the lower surface of the guide frame (14). An upper limit wheel (16) is rotatably connected to the inner side wall of the wheel frame (15).

2. The steel bar cutting device according to claim 1, characterized in that, The conveying mechanism includes a drive frame (18), an electric telescopic rod (19), a slider (20), a drive motor (21), and a conveying roller (22). The lower inner wall of the drive frame (18) is fixedly connected to the electric telescopic rod (19), the output end of the electric telescopic rod (19) is fixedly connected to the slider (20), the front side wall of the slider (20) is fixedly connected to the drive motor (21), and the output end of the drive motor (21) is fixedly connected to the conveying roller (22).

3. The steel bar cutting device according to claim 2, characterized in that, The outer surface of the slider (20) is slidably connected to the drive frame (18), the outer surfaces of both ends of the conveying roller (22) are rotatably connected to the slider (20), and the lower surface of the drive frame (18) is fixedly connected to the base (1).

4. The steel bar cutting device according to claim 1, characterized in that, The lower surface of the base (1) is fixedly connected to a bracket (23), and the number of brackets (23) is four and arranged in a rectangular array.

5. The steel bar cutting device according to claim 1, characterized in that, The lower end of the screw (8) extends through the base (1) to the bottom of the base (1). The lower end of the screw (8) is fixedly connected to a synchronous pulley (24), and the synchronous pulleys (24) are driven by a synchronous belt (25).

6. A steel bar cutting device according to claim 5, characterized in that, The outer surface of the screw (8) is rotatably connected to the fixed frame (6), the outer surface of the lifting frame (9) is slidably connected to the fixed frame (6), and the outer surface of the base (1) of the screw (8) is rotatably connected to the base (1).

7. The steel bar cutting device according to claim 1, characterized in that, The upper surface of the upper cutting blade (11) is fixedly connected to a guide rod (26), and the outer surface of the guide rod (26) is slidably connected to the lifting frame (9).

8. A steel bar cutting device according to claim 1, characterized in that, The outer surface of the guide frame (14) is slidably connected to the limiting frame (12), and the position of the upper limiting wheel (16) corresponds to that of the lower limiting wheel (5).

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