Steel bar cutting device for constructional engineering
By designing an automatic feeding and fixed-length cutting rebar cutting device, the problems of work-related injuries caused by manual feeding and increased working hours due to measurement and marking were solved, thus achieving safe and efficient rebar cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王建平
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-08
AI Technical Summary
Existing rebar cutting devices require manual feeding when cutting short rebars, which can easily cause workers' fingers to be pinched. Furthermore, the need for measurement and marking when cutting rebars of different sizes increases the working time.
A device comprising a rebar conveying assembly, a cutting assembly, a length positioning assembly, and a cutting control assembly is designed to achieve automatic feeding and fixed-length cutting. The cutting length is pre-adjusted by the rebar length positioning assembly, and the cutting of the rebar is automatically completed by the coordinated work of the conveying assembly and the cutting control assembly.
It eliminates the need for manual feeding, avoids workplace accidents, simplifies the cutting process, improves cutting efficiency and accuracy, and reduces measurement steps.
Smart Images

Figure CN224209024U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel bar processing technology, specifically referring to a steel bar cutting device used in construction engineering. Background Technology
[0002] Rebar cutting devices are specialized equipment used in construction engineering for the precise cutting of rebars. Their core function is to cut rebars to specific lengths according to construction requirements.
[0003] Currently, the following problems exist with steel bar cutting devices on the market:
[0004] 1. When cutting short steel bars, manual feeding with pliers is required, which can easily cause workers to get their fingers pinched or accidentally injured.
[0005] 2. When cutting steel bars of different sizes, it is necessary to measure and mark the steel bars before cutting them with a machine, which increases the measurement process and cutting time. Utility Model Content
[0006] The present invention aims to at least solve the problems of manual feeding and easy work-related injuries when cutting short steel bars, and the long working time caused by measuring and marking the steel bars in advance before cutting when cutting steel bars of different sizes.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model proposes a rebar cutting device for construction engineering, comprising a supporting base plate, with two sets of sliding supports extending upward from one side of the supporting base plate, and further comprising:
[0008] Rebar conveying assembly: Fixedly installed on one side of the supporting base plate, it conveys the rebar to the other side of the supporting plate for easy cutting;
[0009] Rebar cutting assembly: Vertically mounted on the support base plate, used for cutting rebars; a cutting control assembly is provided above the rebar cutting assembly, and the cutting control assembly is fixed on the rebar conveying assembly;
[0010] Rebar length positioning component: It slides on the two sets of sliding brackets, and one end can slide into the space between the cutting control component and the rebar cutting component. After extending into the cutting area, it facilitates the cutting of the rebar.
[0011] Furthermore, the rebar length positioning component includes a slider that slides on a sliding bracket. One side of the slider is hinged with a swinging member, and the other end of the swinging member is provided with a rotating shaft. A sliding ruler slides on the upper end of the sliding bracket. The rotating shaft passes through the sliding ruler and is rotatably connected to it. Symmetrical reset components and pressure blocks are respectively provided at both ends of the sliding ruler. The pressure blocks are located close to the rebar cutting component, and after adjustment by the sliding ruler, the pressure blocks extend into the space between the rebar cutting component and the cutting control component and the rebar cutting component. Two sets of swinging members are provided, and a pushing member connects the two sets of swinging members.
[0012] Furthermore, the reset assembly includes a support block fixed to the end of the sliding bracket, a reset spring is provided on the support block, and a push block fixedly connected to the end of the sliding ruler is provided at the other end of the reset spring.
[0013] Furthermore, the sliding ruler is provided with several sets of through holes, and the rotating shaft is rotatably connected to the through holes and can be replaced to any position of the through hole.
[0014] Furthermore, the rebar cutting assembly includes a cutting block fixed on a support base plate, with a vertically extending cutter at its upper end. The cutting blade faces downwards, and the cutting block has a cutting groove for adjusting the cutter. A rebar inlet is also provided on one side of the cutting block. The cutter and the cutting block are connected by a push spring, and the cutter slides within the cutting block.
[0015] Furthermore, the cutting control assembly includes a cutting motor fixed above the rebar conveying assembly. An eccentric wheel is keyed to the output shaft of the cutting motor. The rebar conveying assembly also includes a slide groove fixed to the side wall of the rebar conveying assembly. A pressing member slides in the slide groove. The pressing member is connected to the top wall of the slide groove by a tension spring. The eccentric wheel strikes the pressing member. The pressing block extends into the upper end of the cutter and the lower end of the pressing member to assist in cutting the rebar.
[0016] Furthermore, the rebar conveying assembly includes a conveying frame fixed on a supporting base, a chute fixed to the side wall of the conveying frame, a conveying wheel rotating on the conveying frame, the other end of the conveying wheel passing through the conveying frame and connected to a conveying motor whose output shaft is keyed thereto, a slide frame sliding above the conveying frame, a pressure wheel rotating on the slide frame, the pressure wheel and the conveying wheel conveying the rebar together, and an adjustment assembly passing through the conveying frame above the slide frame.
[0017] Furthermore, the adjustment assembly includes a screw threadedly connected to the top of the conveyor frame. One end of the screw is provided with an adjustment handwheel, and the other end of the screw extends to an adjustment spring connected to the slide. Rotating the adjustment handwheel and the screw changes the compression length of the adjustment spring, thereby changing the pressure of the pressure roller.
[0018] Furthermore, the support base plate is also provided with rectangular material dropping holes.
[0019] The beneficial effects of this utility model by adopting the above structure are as follows:
[0020] 1. By setting up a rebar conveying assembly with adjustable clamping force, the conveying and cutting of rebars of different diameters can be achieved;
[0021] 2. After the cutting length of the rebar is pre-adjusted by the rebar length positioning component, the rebar being fed in pushes the rebar length positioning component, causing it to extend into the cutting area of the rebar cutting component and the cutting control component, thereby achieving the effect of automatic cutting;
[0022] 3. At the same time, by setting the reset spring, the pressure block is reset, so that when the length of the steel bar is insufficient, the cutting control component will idle and be unable to cut the steel bar, thus achieving the purpose of cutting the steel bar to a fixed length. Attached Figure Description
[0023] Figure 1 This is a partial cross-sectional view of the present invention;
[0024] Figure 2 Structural diagram of the rebar length positioning component;
[0025] Figure 3 A combined sectional view of the rebar cutting assembly and the cutting control assembly;
[0026] Figure 4 A diagram showing the combination of the supporting base plate, sliding bracket, and rebar conveying assembly;
[0027] Figure 5 This is an exploded view of the rebar conveying assembly.
[0028] The components include: 1. Support base plate; 11. Material drop hole; 2. Sliding bracket; 3. Rebar conveying assembly; 31. Conveying frame; 32. Conveying wheel; 33. Conveying motor; 34. Slide; 35. Pressing wheel; 36. Adjusting assembly; 361. Screw; 362. Adjusting handwheel; 363. Adjusting spring; 4. Rebar cutting assembly; 41. Cutting block; 411. Rebar inlet; 42. Cutter; 43. Groove; 44. Push spring; 5. Cutting control assembly; 51. Cutting motor; 52. Eccentric wheel; 53. Groove; 54. Pressing component; 55. Tension spring; 6. Rebar length positioning assembly; 61. Slider; 62. Swinging component; 62. Pushing component; 63. Rotating shaft; 64. Sliding ruler; 641. Through hole; 65. Reset assembly; 651. Support block; 652. Reset spring; 653. Push block; 66. Pressing block. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.
[0030] Please see Figure 1 , Figure 4 :
[0031] A rebar cutting device for construction engineering includes a support base plate 1, on which a rectangular drop hole 11 is provided. Two sets of sliding brackets 2 extend upward from one side of the support base plate 1. The device also includes: a rebar conveying assembly 3, fixedly mounted on one side of the support base plate 1, for conveying rebar to the other side of the support plate for easy cutting; a rebar cutting assembly 4, vertically mounted on the support base plate 1 for cutting rebar, with a cutting control assembly 5 above the rebar cutting assembly 4, fixed to the rebar conveying assembly 3; and a rebar length positioning assembly 6, sliding on the two sets of sliding brackets 2, with one end slidably extending between the cutting control assembly 5 and the rebar cutting assembly 4, extending into the cutting area for easy positioning. The steel bar is cut. The steel bar is conveyed through the steel bar conveying assembly 3 and passes through the steel bar cutting assembly 4. At this time, the cutting control assembly 5 is idle and will not contact the steel bar cutting assembly 4. When the steel bar is continuously conveyed until it contacts the steel bar length positioning assembly 6, it pushes the steel bar length positioning assembly 6, which has been pre-adjusted to the length of the steel bar after cutting, to rotate and slide on the sliding bracket 2. This allows the other end of the steel bar length positioning assembly 6 to extend between the steel bar cutting assembly 4 and the cutting control assembly 5, filling the gap between them. At this time, after the idle cutting control assembly rotates to the minimum stroke, under the filling action of the steel bar length positioning assembly 6, the steel bar can be quantitatively cut by the steel bar cutting assembly 4 and finally fall out of the drop hole 11.
[0032] Please see Figure 5 :
[0033] The rebar conveying assembly 3 includes a conveying frame 31 fixed on a supporting base, a chute 53 fixed on the side wall of the conveying frame 31, a conveying wheel 32 rotating on the conveying frame 31, the other end of the conveying wheel 32 passing through the conveying frame 31 and connected to a conveying motor 33 whose output shaft is keyed to it, a slide 34 sliding above the conveying frame 31, a pressure wheel 35 rotating on the slide 34, the pressure wheel 35 and the conveying wheel 32 together conveying rebar, an adjustment assembly 36 passing through the conveying frame 31 above the slide 34, the adjustment assembly 36 including a screw 361 threadedly connected to the upper part of the conveying frame 31, an adjustment handwheel 362 at one end of the screw 361, and an adjustment spring 363 extending from the other end of the screw 361 and connected to the slide 34, rotating the adjustment handwheel 362 and the screw 361 changes the compression length of the adjustment spring 363 and thus changes the pressure of the pressure wheel 35;
[0034] The reinforcing bar passes between the conveying wheel 32 and the clamping wheel 35. By rotating the adjusting handwheel 362 and changing the compression length of the adjusting spring 363 through the screw 361, the position of the slide 34 and the clamping wheel 33 on the conveying frame 31 can be changed, which facilitates the conveying of reinforcing bars of different diameters. After starting the conveying motor 33, the conveying wheel 32 is driven to rotate, and the reinforcing bar is conveyed backward to achieve cutting.
[0035] Please see Figure 1 and Figure 2 :
[0036] The rebar length positioning component 6 includes a slider 61 that slides on a sliding bracket 2. A swing element 62 is hinged to one side of the slider 61, and a rotating shaft 63 is provided at the other end of the swing element 62. A sliding ruler 64 slides on the upper end of the sliding bracket 2. The rotating shaft 63 passes through the sliding ruler 64 and is rotatably connected to it. The sliding ruler 64 has several sets of through holes 641, and the rotating shaft 63 is rotatably connected to the through holes 641, allowing it to be replaced with any through hole 641. Symmetrical reset components 65 and pressure components 66 are provided at both ends of the sliding ruler 64. Block 66, reset assembly 65 includes a support block 651 fixed to the end of the sliding bracket 2, a reset spring 652 is provided on the support block 651, the other end of the reset spring 652 is provided with a push block 653 fixedly connected to the end of the sliding ruler 64, the pressure block 66 is set close to the rebar cutting assembly 4, and the pressure block 66 extends into the space between the rebar cutting assembly 4 and the cutting control assembly 5 and the rebar cutting assembly 4 after adjustment by the sliding ruler 64, the swing member 62 is provided in two sets, and a push member 621 is connected between the two sets of swing members 62;
[0037] Adjusting the position of slider 61 on the sliding space 2 achieves the purpose of adjusting the cutting length of the steel bar. After the steel bar is delivered, it first contacts the pusher 621. After the pusher 621 is pushed by the steel bar, it drives the swinging member 62 to swing. With the setting of the rotating shaft 63, the linkage sliding ruler 64 moves forward above the sliding bracket 2, thereby pushing the pressure block 66 between the steel bar cutting component 4 and the cutting control component 5 to achieve closed-loop cutting of the steel bar.
[0038] Please see Figure 1 , Figure 3 :
[0039] The rebar cutting assembly 4 includes a cutting block 41 fixed on a support base plate 1, with a vertically extending cutting blade 42 at its upper end. The blade of the cutting blade 42 faces downward. The cutting block 41 has a cutting groove 43 for adjusting the cutting blade 42. A rebar inlet 411 is also provided on one side of the cutting block 41. The cutting blade 42 is connected to the cutting block 41 by a push spring 44 and the cutting blade 42 slides inside the cutting block 41.
[0040] The cutting control assembly 5 includes a cutting motor 51 fixed above the rebar conveying assembly 3. An eccentric wheel 52 is keyed to the output shaft of the cutting motor 51. The rebar conveying assembly 3 also includes a slide groove 53 fixed to the side wall of the rebar conveying assembly 3. A lower pressing member 54 slides in the slide groove 53. The lower pressing member 54 is connected to the top wall of the slide groove 53 by a tension spring 55. The eccentric wheel 52 strikes the lower pressing member 54. The pressing block 66 extends into the upper end of the cutter 42 and the lower end of the lower pressing member 54 to assist in cutting the rebar.
[0041] The pressure block 66 extends above the cutter 42 and below the lower pressure member 54, filling the gap between them. At this time, the end electrode 51 rotates, driving the eccentric wheel 52 to rotate, which will then strike the lower pressure member 54. The lower pressure member 54 slides and presses down in the slide groove 53. The pressure block 66 pushes the cutter 42 to move down in the cutting groove 43, cutting the steel bar entering from the steel bar inlet 411. After cutting, the cutter 42 is reset under the setting of the push spring 44, the tension spring 55 drives the lower pressure member 54 to reset, and the pressure block 66 is reset under the setting of the reset spring 652.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0043] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A rebar cutting device for construction engineering, comprising a supporting base plate (1), wherein two sets of sliding supports (2) extend upward from one side of the supporting base plate (1), characterized in that, Also includes: Rebar conveying assembly (3): It is fixedly installed on one side of the support base plate (1) to convey the rebar to the other side of the support plate for easy cutting; Rebar cutting assembly (4): Vertically installed on the supporting base plate (1) for cutting rebars. A cutting control assembly (5) is provided above the rebar cutting assembly (4). The cutting control assembly (5) is fixed on the rebar conveying assembly (3). The rebar length positioning component (6) slides on the two sets of sliding brackets (2), and one end can slide into the cutting control component (5) and the rebar cutting component (4). After extending into the cutting area, it is convenient to cut the rebar.
2. The rebar cutting device for construction engineering according to claim 1, characterized in that: The rebar length positioning component (6) includes a slider (61) that slides on a sliding bracket (2). One side of the slider (61) is hinged with a swing element (62). The other end of the swing element (62) is provided with a rotating shaft (63). A sliding ruler (64) slides on the upper end of the sliding bracket (2). The rotating shaft (63) passes through the sliding ruler (64) and is rotatably connected to it. The two ends of the sliding ruler (64) are respectively provided with a symmetrical reset component (65) and a pressure block (66). The pressure block (66) is set close to the rebar cutting component (4). After the pressure block (66) is adjusted by the sliding ruler (64), it extends into the space between the rebar cutting component (4) and the cutting control component (5) and the rebar cutting component (4). There are two sets of swing elements (62), and a pusher (621) is connected between the two sets of swing elements (62).
3. The rebar cutting device for construction engineering according to claim 2, characterized in that: The reset assembly (65) includes a support block (651) fixed to the end of the sliding bracket (2), a reset spring (652) is provided on the support block (651), and a push block (653) fixedly connected to the end of the sliding ruler (64) is provided at the other end of the reset spring (652).
4. The rebar cutting device for construction engineering according to claim 2 or 3, characterized in that: The sliding ruler (64) is provided with several sets of through holes (641), and the rotating shaft (63) is rotatably connected to the through holes (641) and can be replaced to any position of the through hole (641).
5. The rebar cutting device for construction engineering according to claim 2, characterized in that: The rebar cutting assembly (4) includes a cutting block (41) fixed on a supporting base plate (1), with a vertically extending cutting blade (42) at its upper end. The blade of the cutting blade (42) faces downward. The cutting block (41) has a cutting groove (43) for adjusting the cutting blade (42). A rebar inlet (411) is also provided on one side of the cutting block (41). The cutting blade (42) is connected to the cutting block (41) by a push spring (44), and the cutting blade (42) slides inside the cutting block (41).
6. The rebar cutting device for construction engineering according to claim 5, characterized in that: The cutting control assembly (5) includes a cutting motor (51) fixed above the rebar conveying assembly (3). An eccentric wheel (52) is keyed to the output shaft of the cutting motor (51). The rebar conveying assembly (3) also includes a chute (53) fixed to the side wall of the rebar conveying assembly (3). A pressing member (54) slides in the chute (53). The pressing member (54) is connected to the top wall of the chute (53) by a tension spring (55). The eccentric wheel (52) strikes the pressing member (54). The pressure block (66) extends into the upper end of the cutter (42) and the lower end of the pressing member (54) to assist in cutting the rebar.
7. The rebar cutting device for construction engineering according to claim 6, characterized in that: The rebar conveying assembly (3) includes a conveying frame (31) fixed on a supporting base frame, a chute (53) fixed on the side wall of the conveying frame (31), a conveying wheel (32) rotating on the conveying frame (31), the other end of the conveying wheel (32) passing through the conveying frame (31) and connected to a conveying motor (33) whose output shaft is keyed to it, a slide (34) sliding above the conveying frame (31), a pressure wheel (35) rotating on the slide (34), the pressure wheel (35) and the conveying wheel (32) jointly conveying rebar, and an adjustment assembly (36) passing through the conveying frame (31) above the slide (34).
8. The rebar cutting device for construction engineering according to claim 7, characterized in that: The adjustment assembly (36) includes a screw (361) threadedly connected to the conveyor frame (31). One end of the screw (361) is provided with an adjustment handwheel (362), and the other end of the screw (361) extends to an adjustment spring (363) connected to the slide (34). Rotating the adjustment handwheel (362) and the screw (361) changes the compression length of the adjustment spring (363) and thus changes the pressure of the pressure roller (35).
9. The rebar cutting device for construction engineering according to any one of claims 5-8, characterized in that: The supporting base plate (1) is also provided with a rectangular material dropping hole (11).