Steel bar cutting device for building construction

Abstract

The invention belongs to the technical field of reinforcing steel bar machining, and discloses a reinforcing steel bar cutting device for building construction, which comprises a workbench, a limiting mechanism, two groups of lifting mechanisms and a sliding groove are sequentially arranged on the workbench along the reinforcing steel bar conveying direction, a cutting rack is arranged between the two groups of lifting mechanisms, and an inverted U-shaped sliding frame is slidably mounted in the sliding groove. A clamping mechanism used for clamping a reinforcing steel bar is mounted in the U-shaped sliding frame; the clamping mechanism comprises an upper clamping plate and a lower clamping plate which can move relatively, rotatable clamping rollers are arranged on the upper clamping plate and the lower clamping plate, a plurality of annular grooves are evenly formed in the clamping rollers, and a plurality of clamping channels capable of penetrating through reinforcing steel bars are formed between the two clamping rollers through the two annular grooves. In conclusion, based on the relative movement between the clamping mechanism and the cutting rack, the cutting position of the reinforcing steel bar can be accurately adjusted, the clamping mechanism mainly comprises two clamping rollers, and therefore automatic discharging after the reinforcing steel bar is cut can be achieved through rotation of the clamping rollers.

Description

Technical Field

[0001] The invention belongs to the technical field of steel bar processing, and in particular relates to a steel bar cutting device for building construction. Background Art

[0002] Rebars are commonly used in various building structures. During the construction process, it is usually necessary to cut the entire rebar into several sections to meet the needs of rebars of different lengths. The existing rebar cutting machine is mainly composed of a cutting tool and a fixing device. The fixing device is used to fix the rebar, and the rebar is cut by a rotating tool. However, the existing method of cutting rebars of different lengths is mainly to manually measure in advance and mark the cutting position on the rebar. Due to the errors in manual measurement, the accuracy of the rebar cutting length is greatly reduced; in addition, the fixing devices in the existing rebar cutting machines are mostly fixedly installed, so after completing a cut, the fixing device needs to be loosened, and then the rebar is fed manually, which is cumbersome to operate and has low cutting efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a steel bar cutting device for construction to solve the problems of insufficient steel bar cutting accuracy, inclined cutting surface, inability to stably fix and the need for manual steel bar feeding.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A steel bar cutting device for construction, comprising a workbench, on which a limit mechanism, two sets of lifting mechanisms and a slideway are arranged in sequence along the steel bar conveying direction, a cutting rack is arranged between the two sets of lifting mechanisms, an inverted U-shaped slide is slidably installed in the slideway, and a clamping mechanism for clamping the steel bar is installed in the U-shaped slideway;

[0006] The clamping mechanism includes an upper clamping plate and a lower clamping plate which can move relatively, and the upper clamping plate and the lower clamping plate are both provided with rotatable clamping rollers, and the clamping rollers are evenly provided with a plurality of annular grooves, and through the cooperation of two groups of annular grooves, a plurality of clamping channels capable of passing steel bars are formed between the two clamping rollers.

[0007] Preferably, a bevel gear set is rotatably installed on the upper clamping plate and the lower clamping plate, and the bevel gear set includes a first bevel gear coaxially fixed with the clamping roller and a second bevel gear meshing with one side of the first bevel gear. A guide rod is rotatably connected between the U-shaped slide and the lower clamping plate, and the two second bevel gears are slidably mounted on the guide rod.

[0008] Preferably, an electric telescopic rod is fixed on the top of the U-shaped slide, and the telescopic bottom end of the electric telescopic rod is fixedly connected to the upper clamping plate; a micro motor for driving the clamping roller to rotate is fixed on the lower clamping plate.

[0009] Preferably, the clamping mechanism also includes a baffle plate slidably connected to the U-shaped slide, the clamping roller is positioned between the baffle plate and the limiting mechanism, and the baffle plate and the top of the U-shaped slide are connected by an elastic telescopic rod, and guide ramps that can cooperate with the baffle plate are fixed on both sides of the slide groove, and the guide ramps arranged on the guide ramps face the baffle plate.

[0010] Preferably, a guide rail is provided on the workbench, and the guide rail is located on one side of the slide groove, a servo motor is fixedly installed at one end of the guide rail, a screw rod is fixedly installed on the output shaft of the servo motor, and the screw rod is located in the guide rail, a slider is screwed on the screw rod, and the slider is slidably connected to the guide rail, and the slider is fixedly connected to the U-shaped slide through a connecting rod.

[0011] Preferably, the limiting mechanism comprises a plurality of groups of partitions which are equidistantly distributed, and two groups of limiting clamping plates which can move towards or in opposite directions are arranged between adjacent partitions.

[0012] Preferably, a telescopic rod and a spring are provided between the limiting clamp plate and the partition plate, and the spring is sleeved on the outside of the telescopic rod.

[0013] Preferably, the lifting mechanism includes a hydraulic rod and a shell fixed to the telescopic top end of the hydraulic rod.

[0014] Preferably, rotating rollers are rotatably installed in both groups of the shells, and the cutting racks are meshingly sleeved on the two rotating rollers; a driving motor is fixed to the outside of one of the shells, and the output shaft of the driving motor is fixedly connected to the corresponding rotating roller.

[0015] Preferably, a fixing rod is provided between the two groups of the shells, a nozzle is provided on the fixing rod, and a water supply mechanism for connecting with the nozzle is installed on the workbench.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention provides a U-shaped slide frame slidably mounted on a slide groove, and a clamping mechanism for clamping steel bars is provided inside the U-shaped slide frame. Based on the movement of the clamping mechanism, the distance between the clamping end of the steel bar and the cutting rack can be accurately adjusted, thereby adjusting the quantitative cutting length of the steel bar and improving the cutting accuracy.

[0018] (2) A guide rail, a screw rod, or a slider, etc. that cooperate with the U-shaped slide are arranged on one side of the slide groove, so that the U-shaped slide groove can be accurately moved in the slide groove based on the rotation of the screw rod, and automatic feeding can be effectively realized during the steel bar cutting process.

[0019] (3) The clamping mechanism mainly includes two rotatable clamping rollers, and the two clamping rollers form a rotation linkage based on the cooperation between the bevel gear set and the guide rod, thereby facilitating the automatic discharge of the steel bars after cutting.

[0020] (4) The clamping mechanism also includes a baffle that can cover the discharge side of the U-shaped slide, thereby: on the one hand, the baffle can be used to keep the clamping ends of the multiple steel bars flush, thereby further improving the synchronous cutting accuracy of the multiple steel bars; on the other hand, the baffle and the guide ramp can cooperate to open the discharge side of the U-shaped slide, thereby facilitating the discharge.

[0021] (5) The present invention is provided with a limiting mechanism composed of a partition, a limiting clamp, a telescopic rod and a spring, which specifically utilizes the elastic deformation characteristics of the spring to effectively limit the steel bars, thereby ensuring that the transportation direction of the steel bars is always perpendicular to the cutting direction, thereby avoiding the situation where the cutting surface of the steel bars is tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional Figure 1 ;

[0023] Figure 2 The three-dimensional Figure 2 ;

[0024] Figure 3 The three-dimensional Figure 3 ;

[0025] Figure 4 It is a schematic diagram of the structure of the assembly of the rotating roller and the cutting rack in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the assembly of the clamping mechanism and the guide rail in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the upper clamping plate and the lower clamping plate in the present invention;

[0028] Figure 7 for Figure 3 A in the enlarged view;

[0029] In the figure: driving motor 1; housing 2; hydraulic rod 3; workbench 4; slide 5; servo motor 6; guide rail 7; slider 8; screw rod 9; fixing rod 10; cutting rack 11; nozzle 12; rotating roller 13; electric telescopic rod 14; U-shaped slide 15; upper clamping plate 16; baffle 17; clamping roller 18; lower clamping plate 19; limiting clamping plate 20; spring 21; telescopic rod 22; partition 23; first bevel gear 24; second bevel gear 25; guide rod 26; guide ramp 27.

[0030] Specific implementation party

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7 As shown, the present invention provides the following technical solutions:

[0033] A steel bar cutting device for construction includes a workbench 4, on which a limiting mechanism, two sets of lifting mechanisms and a slide chute 5 are sequentially arranged along the steel bar conveying direction, a cutting rack 11 is arranged between the two sets of lifting mechanisms, an inverted U-shaped slide 15 is slidably installed in the slide chute 5, and a clamping mechanism for clamping the steel bars is installed in the U-shaped slide 15.

[0034] From the above, when performing steel bar cutting:

[0035] First, the positioning mechanism is used to position the steel bars. Figure 7 It can be seen that the limiting mechanism of the present invention includes multiple groups of partitions 23 distributed at equal intervals, and steel bar placement grooves are formed between adjacent partitions 23. Based on this, when placing steel bars, one steel bar can be placed in one placement groove, thereby realizing the parallel arrangement of multiple steel bars;

[0036] Then, based on the lifting of the lifting mechanism, a material taking channel is formed between the cutting rack 11 and the workbench 4 for the clamping mechanism to pass through;

[0037] Next, based on the movement of the U-shaped slide 15 in the slide groove 5, the clamping mechanism passes through the above-mentioned material taking channel and synchronously clamps the multiple steel bars that have been arranged in parallel on one side of the limiting mechanism;

[0038] Finally, the steel bar is pulled through the above-mentioned material taking channel by the U-shaped slide 15 moving back in the slide 5, thereby realizing automatic feeding of the steel bar, and the feeding length of the steel bar can be flexibly adjusted based on the different moving positions of the U-shaped slide 15 in the slide 5. After the feeding is completed, the automatic cutting of the steel bar can be realized under the cooperation of the lifting mechanism and the cutting rack 11.

[0039] As mentioned above, regarding the cooperation between the lifting mechanism and the cutting rack 11, its specific structure refers to Figure 1As shown, the lifting mechanism includes a hydraulic rod 3 and a housing 2 fixed to the telescopic top of the hydraulic rod 3. Rotating rollers 13 are rotatably installed in both groups of the housings 2, and the cutting rack 11 is meshed and sleeved on the two rotating rollers 13; a driving motor 1 is fixed to the outside of one of the housings 2, and the output shaft of the driving motor 1 is fixedly connected to the corresponding rotating roller 13. It can be seen that the cooperative cutting principle of the lifting mechanism and the cutting rack 11 is as follows: start the driving motor 1, and when the output shaft of the driving motor 1 rotates, it drives one of the rotating rollers 13 to rotate synchronously, thereby driving the cutting rack 11 to drive synchronously, start the hydraulic rod 3, and when the telescopic end of the hydraulic rod 3 is shortened, it drives the housing 2 to descend, thereby driving the cutting rack 11 to descend synchronously, and when the cutting rack 11 descends to the steel bar, the driven cutting rack 11 can realize the cutting of the steel bar.

[0040] For the specific structure of the clamping mechanism, please refer to Figure 5 and Figure 6 As shown, the clamping mechanism includes an upper clamping plate 16 and a lower clamping plate 19 that can move relatively, and the upper clamping plate 16 and the lower clamping plate 19 are both provided with rotatable clamping rollers 18, and the clamping rollers 18 are evenly provided with a plurality of annular grooves, and through the cooperation of the two groups of annular grooves, a plurality of clamping channels that can pass the steel bars are formed between the two clamping rollers 18. An electric telescopic rod 14 is fixed to the top of the U-shaped slide 15, and the telescopic bottom end of the electric telescopic rod 14 is fixedly connected to the upper clamping plate 16, and the lower clamping plate 19 is fixedly connected to the bottom of the U-shaped slide 15. Based on this, when the clamping mechanism is used to clamp the steel bars, the U-shaped slide 15 moves in the slide groove 5 toward the direction close to the limiting mechanism, and when the U-shaped slide 15 moves to Figure 2 When in the position shown, the end of the steel bar on the limiting mechanism can just extend into the clamping channel between the two clamping rollers 18; then, the electric telescopic rod 14 is started, and the telescopic end of the electric telescopic rod 14 drives the upper clamping plate 16 to descend toward the lower clamping plate 19, thereby driving the clamping rollers 18 installed on the upper clamping plate 16 to descend synchronously until the steel bar is stably clamped in the clamping channel between the two clamping rollers 18.

[0041] Furthermore, regarding the clamping roller 18, a bevel gear set is rotatably mounted on both the upper clamping plate 16 and the lower clamping plate 19, and the bevel gear set includes a first bevel gear 24 coaxially fixed with the clamping roller 18 and a second bevel gear 25 meshing with one side of the first bevel gear 24. A guide rod 26 is rotatably connected between the U-shaped slide 15 and the lower clamping plate 19, and the two second bevel gears 25 are slidably sleeved on the guide rod 26, and a micro motor for driving the clamping roller 18 to rotate is fixed on the lower clamping plate 19. Based on this, after the above-mentioned steel bar cutting is completed, the micro motor on the lower clamping plate 19 can be used to drive the corresponding clamping roller 18 to rotate, such as Figure 6As shown, the rotation of the clamping roller 18 drives the bevel gear set matched with it to engage and transmit, and drives another set of bevel gear sets and the clamping roller 18 to rotate in the opposite direction through the guide rod 26, thereby driving the steel bars clamped between the two clamping rollers 18 to pass through the clamping channel, thereby realizing automatic discharge of the steel bars after cutting.

[0042] In addition, the clamping mechanism also includes a baffle 17 slidably connected to the U-shaped slide 15, the clamping roller 18 is positioned between the baffle 17 and the limiting mechanism, and the baffle 17 and the top of the U-shaped slide 15 are connected with an elastic telescopic rod, and the two sides of the slide 5 are fixed with a guide ramp 27 that can cooperate with the baffle 17, and the guide slope set on the guide ramp 27 faces the baffle 17. Based on this, when the U-shaped slide 15 moves to Figure 2 When the material is in the material taking position shown in FIG. 1 , the baffle 17 and the guide ramp 27 are in a separated state. At this time, the baffle 17 is positioned at the lowest position under the limitation of the elastic telescopic rod, that is, the baffle 17 can be Figure 5 The state shown blocks the discharge side of the U-shaped carriage 15. In this state, the two clamping rollers 18 are used to clamp the ends of the steel bars, and the two clamping rollers 18 can also be used to rotate in opposite directions so that the ends of the multiple steel bars are all against one side of the baffle 17, thereby ensuring that the ends of the multiple steel bars remain flush. After the steel bar cutting is completed, the U-shaped carriage 15 approaches the guide ramp 27 along the chute 5. At this time, the bottom of the baffle 17 gradually contacts the guide slope of the guide ramp 27, and the baffle 17 is driven to rise (the elastic telescopic rod is stretched and extended) under the guiding action of the guide slope, thereby opening the discharge side of the U-shaped carriage 15. In this state, the automatic discharge of the cut steel bars can be completed based on the opposite rotation of the two clamping rollers 18.

[0043] Further, regarding the specific movement of the U-shaped slide 15, refer to Figure 5 As shown, a guide rail 7 is provided on the workbench 4, and the guide rail 7 is located on one side of the slide groove 5. A servo motor 6 is fixedly installed at one end of the guide rail 7. A screw rod 9 is fixedly installed on the output shaft of the servo motor 6, and the screw rod 9 is located in the guide rail 7. A slider 8 is screwed on the screw rod 9, and the slider 8 is slidably connected to the guide rail 7, and the slider 8 is fixedly connected to the U-shaped slide 15 through a connecting rod. It can be seen that the movement principle of the above-mentioned U-shaped slide 15 and the clamping mechanism is as follows: the screw rod 9 is driven to rotate by the servo motor 6, and the screw rod 9 is screwed with the slider 8 when it rotates, so as to drive the slider 8 to move on the guide rail 7, thereby driving the U-shaped slide 15 fixedly connected to the slider 8 to move synchronously, thereby realizing the movement of the clamping mechanism. Among them, in the process of the slide plate 17 approaching the limiting mechanism, in order to ensure that the end of the steel bar on the limiting mechanism can effectively extend into the clamping mechanism (that is, Figure 2 As shown in the figure), the integral U-shaped slide 15 is preferably connected to the side of the slide 8 close to the cutting rack 11 (see Figure 5 shown).

[0044] For the specific structure of the limit mechanism, please refer to Figure 7 As shown, the limiting mechanism also includes two groups of limiting clamps 20 that can move toward or opposite to each other between adjacent partitions 23. A telescopic rod 22 and a spring 21 are provided between the limiting clamps 20 and the partitions 23, and the spring 21 is sleeved outside the telescopic rod 22. Based on this, when the steel bar is located between the two groups of limiting clamps 20, the steel bar will be squeezed by the springs 21 on both sides, thereby realizing the positioning and placement of the steel bar, and is effectively applicable to steel bars of different diameters.

[0045] In addition, a fixing rod 10 is provided between the two groups of the shells 2, and a nozzle 12 is provided on the fixing rod 10. A water supply mechanism (not shown in the figure) for connecting with the nozzle 12 is installed on the workbench 4. The water supply mechanism is mainly composed of a water storage tank, a water pump, and a connecting water pipe. The water pump is arranged inside the water storage tank, and the connecting water pipe is connected between the water pump and the nozzle 12. In this way, the water stored in the water storage tank is guided to the nozzle 12 by the water pump, and water is sprayed to the cutting rack 11 through the nozzle 12, so as to reduce the temperature of the cutting rack 11 when it is working, thereby reducing the sparks generated by friction when the cutting rack 11 cuts the steel bars, and avoiding harm to the operator.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar cutting device for construction, comprising a workbench (4), characterized in that: The workbench (4) is provided with a limit mechanism, two sets of lifting mechanisms and a slide groove (5) in sequence along the direction of conveying the steel bars, a cutting rack (11) is provided between the two sets of lifting mechanisms, an inverted U-shaped slide (15) is slidably installed in the slide groove (5), and a clamping mechanism for clamping the steel bars is installed in the U-shaped slide (15); The clamping mechanism comprises an upper clamping plate (16) and a lower clamping plate (19) which are movable relative to each other. The upper clamping plate (16) and the lower clamping plate (19) are both provided with rotatable clamping rollers (18). The clamping rollers (18) are evenly provided with a plurality of annular grooves. Through the cooperation of two groups of annular grooves, a plurality of clamping channels capable of passing steel bars are formed between the two clamping rollers (18).

2. A steel bar cutting device for construction according to claim 1, characterized in that: A bevel gear set is rotatably mounted on both the upper clamping plate (16) and the lower clamping plate (19), and the bevel gear set includes a first bevel gear (24) coaxially fixed with the clamping roller (18) and a second bevel gear (25) meshed with one side of the first bevel gear (24). A guide rod (26) is rotatably connected between the U-shaped slide (15) and the lower clamping plate (19), and the two second bevel gears (25) are slidably sleeved on the guide rod (26).

3. A steel bar cutting device for construction according to claim 2, characterized in that: An electric telescopic rod (14) is fixed on the top of the U-shaped slide (15), and the telescopic bottom end of the electric telescopic rod (14) is fixedly connected to the upper clamping plate (16); a micro motor for driving the clamping roller (18) to rotate is fixed on the lower clamping plate (19).

4. A steel bar cutting device for construction according to claim 3, characterized in that: The clamping mechanism also includes a baffle (17) slidably connected to the U-shaped slide (15), the clamping roller (18) is positioned between the baffle (17) and the limiting mechanism, and the baffle (17) and the top of the U-shaped slide (15) are connected by an elastic telescopic rod, and guide ramps (27) that can cooperate with the baffle (17) are fixed on both sides of the slide groove (5), and the guide ramps (27) are arranged on the baffle (17).

5. A steel bar cutting device for construction according to claim 4, characterized in that: The workbench (4) is provided with a guide rail (7), and the guide rail (7) is located on one side of the slide groove (5); a servo motor (6) is fixedly installed at one end of the guide rail (7); a screw rod (9) is fixedly installed on the output shaft of the servo motor (6), and the screw rod (9) is located in the guide rail (7); a slider (8) is screwed on the screw rod (9), and the slider (8) is slidably connected to the guide rail (7), and the slider (8) is fixedly connected to the U-shaped slide frame (15) through a connecting rod.

6. A steel bar cutting device for construction according to claim 1, characterized in that: The limiting mechanism comprises a plurality of groups of partitions (23) distributed at equal intervals, and two groups of limiting clamping plates (20) that can move towards or in opposite directions are arranged between adjacent partitions (23).

7. A steel bar cutting device for construction according to claim 6, characterized in that: A telescopic rod (22) and a spring (21) are provided between the limiting clamping plate (20) and the partition plate (23), and the spring (21) is sleeved outside the telescopic rod (22).

8. A steel bar cutting device for construction according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic rod (3) and a housing (2) fixed to the telescopic top end of the hydraulic rod (3).

9. A steel bar cutting device for construction according to claim 8, characterized in that: Rotating rollers (13) are rotatably mounted in both groups of the shells (2), and the cutting rack (11) is meshingly sleeved on the two rotating rollers (13); a driving motor (1) is fixed on the outside of one of the shells (2), and the output shaft of the driving motor (1) is fixedly connected to the corresponding rotating roller (13).

10. A steel bar cutting device for construction according to claim 8, characterized in that: A fixing rod (10) is provided between the two groups of shells (2), a nozzle (12) is provided on the fixing rod (10), and a water supply mechanism connected to the nozzle (12) is installed on the workbench (4).

Images