Sawing fixed-length blocking device

Abstract

The utility model discloses a sawing fixed-length blocking device which comprises a linear guide rail, a fixed-length adjusting assembly, a swing arm assembly, a lifting assembly, a reinforcing steel bar sensing assembly and a reinforcing steel bar conveying assembly. The steel bar conveying assembly and the linear guide rail are of a linear structure, the linear guide rail is arranged over the steel bar conveying assembly in parallel, and the fixed-length adjusting assembly is arranged on the linear guide rail in a sliding mode. The swing arm assembly is arranged on the fixed-length adjusting assembly in a swing mode, the reinforcing steel bar sensing assembly is arranged on the swing arm assembly in a lifting mode through the lifting assembly, the reinforcing steel bar sensing assembly can be downwards inserted into the reinforcing steel bar conveying assembly, and reinforcing steel bar materials are arranged on the reinforcing steel bar conveying assembly and can abut against the reinforcing steel bar sensing assembly. The utility model relates to the technical field of reinforcing steel bar processing and can solve the problems of inconvenient adjustment and low efficiency of a reinforcing steel bar cutting length control mechanism in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a sawing fixed-length blocking device. Background Art

[0002] In the process of steel bar processing, the steel bars need to be cut into different lengths according to the use requirements of the steel bars. Chinese utility model patent CN18168568U discloses a steel bar cutting machine with a fixed length mechanism, including a base, a placing frame is arranged on the top surface of the base, two sets of fixing frames are symmetrically installed on the top surface of the base, a storage box is installed on the opposite side of the two sets of fixing frames, a scale is installed on the surface of the storage box, two sets of slide rails are installed on the surface of the storage box and at the bottom of the scale, a mounting plate is slidably installed on the surface of the two sets of slide rails, two sets of fixing screws are symmetrically arranged on the surface of the mounting plate, a pointer is installed on the top surface of the mounting plate, a baffle is arranged inside the storage box, the surface of the mounting plate is installed with a bearing plate, and a cylinder is installed on the top surface of the bearing plate.

[0003] The fixed length mechanism of the steel bar cutting machine is manually adjusted and fixed by bolts, which is inconvenient to operate and has low efficiency in fixed length adjustment. Therefore, it is necessary to provide a sawing fixed length blocking device that can solve the problems of inconvenient adjustment and low efficiency of the steel bar cutting fixed length mechanism in the prior art. Summary of the invention

[0004] The utility model aims to provide a sawing fixed-length blocking device, which can solve the problems of inconvenient adjustment and low efficiency of the steel bar cutting fixed-length mechanism in the prior art.

[0005] The utility model is achieved in this way:

[0006] A sawing fixed-length blocking device comprises a linear guide rail, a fixed-length adjustment component, a swing arm component, a lifting component, a steel bar sensing component and a steel bar conveying component; the steel bar conveying component and the linear guide rail are in a linear structure, the linear guide rail is arranged in parallel and directly above the steel bar conveying component, and the fixed-length adjustment component is slidably arranged on the linear guide rail; the swing arm component is swingably arranged on the fixed-length adjustment component, and the steel bar sensing component is liftably arranged on the swing arm component via the lifting component, so that the steel bar sensing component can be inserted downward into the steel bar conveying component, and the steel bar material is placed on the steel bar conveying component and can abut against the steel bar sensing component.

[0007] The fixed-length adjustment component includes a servo motor, a reducer, a motor seat, a rack and a gear; the servo motor and the reducer are arranged at the bottom of the motor seat, the output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the gear; the rack is arranged on the side end face of the linear guide, and the gear is rollingly meshed and connected to the rack; the top of the motor seat is slidably hung on the top of the linear guide, and the swing arm assembly is connected to the motor seat and is slidably connected to the linear guide.

[0008] The swing arm assembly includes a swing cylinder, a swing arm, a rotating seat and a mounting plate; the mounting plate is installed on the motor seat and is slidably connected to the bottom of the linear guide rail, the fixed end of the swing cylinder is arranged at one end of the mounting plate, the upper end of the swing arm is swingably arranged at the other end of the mounting plate through the rotating seat, and the lower end of the swing arm is hinged to the telescopic end of the swing cylinder; the lifting assembly is arranged on the swing arm.

[0009] The lifting component comprises a telescopic cylinder and a slideway arranged on the swing arm; the steel bar sensing component is lifted and lowered on the swing arm along the slideway through a slide block, and the telescopic end of the telescopic cylinder is connected to the slide block.

[0010] The steel bar sensing component includes a sensing sheet metal, a photoelectric switch, a compression spring, a linear bearing and a mounting bracket; the mounting bracket is movably arranged on the slider through the linear bearing, and compression springs are abutted between both sides of the slider and the mounting bracket; the sensing sheet metal is rotatably arranged on the mounting bracket, an ear plate is formed on the sensing sheet metal, and the photoelectric switch is arranged on the mounting bracket and facing the ear plate, so that the ear plate can be rotatably abutted against the photoelectric switch.

[0011] The mounting bracket is provided with a blocking hard plate, which is located between the photoelectric switch and the sensing sheet metal, and is provided with a through hole for the ear plate to pass through. When the ear plate passes through the blocking hard plate and abuts against the photoelectric switch, the sensing sheet metal is tightly attached to the blocking hard plate, and the sensing sheet metal and the blocking hard plate can be synchronously inserted into the steel bar conveying assembly.

[0012] The top two sides of the induction sheet metal are symmetrically provided with limit plates, one end of the limit plate is connected to the induction sheet metal to form an inverted L-shaped structure, and the other end of the limit plate is movably connected to the mounting bracket through a tension spring.

[0013] The steel bar conveying assembly includes a steel bar conveying trough and rollers. The steel bar conveying trough is a U-shaped trough that is wide at the top and narrow at the bottom. A plurality of rollers are arranged at intervals at the bottom of the steel bar conveying trough so that the steel bar material can be movably placed in the steel bar conveying trough. The two sides of the induction sheet metal and the blocking hard plate are inclined structures so that the induction sheet metal and the blocking hard plate can be matched and inserted into the steel bar conveying trough and abut against the ends of the steel bar material.

[0014] A rotating shaft is arranged at one side edge of the steel bar conveying trough along the axial direction of the steel bar conveying trough, and one end of the rotating shaft is externally connected to a driving device so that the steel bar conveying trough can be turned over with the rotating shaft as the axis.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model is provided with a fixed-length adjustment component, which can drive the gear to rotate through a servo motor, and realize the reciprocating movement of the induction sheet metal along the linear guide rail under the meshing transmission of the gear and the rack, thereby ensuring that the position of the induction sheet metal in the steel bar conveying trough meets the length requirement of the steel bar fixed-length cutting. The rotation control of the servo motor can ensure the position accuracy and adjustment efficiency of the induction sheet metal, which is conducive to improving the efficiency and quality of steel bar processing, and the operation is convenient and efficient.

[0017] 2. The utility model is provided with a steel bar sensing component. When the steel bars (or steel bar bundles) are conveyed in the steel bar conveying trough to contact the sensing sheet metal, the ear plate squeezes the photoelectric switch to be triggered, the steel bars (or steel bar bundles) stop conveying and the cutting operation is carried out. The triggering is achieved by using the pressure signal, and the operation is more convenient, simple and accurate.

[0018] 3. The utility model is provided with a swing component and a lifting component, which can drive the steel bar sensing component to swing up and down and lift up and down, so that the steel bar sensing component can be inserted downward into the steel bar conveying trough, which is convenient for positioning the conveying and cutting position of the steel bars (or steel bar bundles), or moved upward out of the steel bar conveying trough, which is convenient for the steel bar sensing component to avoid the steel bars when the steel bars (or steel bar bundles) continue to be conveyed or transferred, thereby ensuring the continuous progress of the steel bar processing procedure.

[0019] 4. The utility model is provided with a steel bar conveying component, which can use friction through the roller to transmit the steel bars (or steel bar bundles) to the induction sheet metal, ensuring convenient, stable and efficient transportation of the steel bars (or steel bar bundles). At the same time, it is also convenient to drive the steel bar conveying trough to rotate through the rotating shaft to pour out the steel bars (or steel bar bundles), which is convenient for the transportation of the steel bars (or steel bar bundles). BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the sawing fixed-length blocking device of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the swing arm assembly, the lifting assembly and the steel bar sensing assembly in the sawing fixed-length blocking device of the utility model;

[0022] Figure 3 It is a side view of the steel bar sensing component in the sawing fixed-length blocking device of the utility model;

[0023] Figure 4 It is a partial schematic diagram of a steel bar conveying assembly in a sawing fixed-length blocking device of the utility model.

[0024] In the figure, 1 is a linear guide, 2 is a servo motor, 3 is a reducer, 4 is a swing cylinder, 5 is a motor seat, 6 is a swing arm, 7 is a telescopic cylinder, 8 is a slideway, 9 is an induction sheet metal, 10 is a blocking hard plate, 11 is a photoelectric switch, 12 is a compression spring, 13 is a linear bearing, 14 is a tension spring, 15 is a rotating seat, 16 is a steel bar conveyor trough, 17 is a roller, 18 is a rotating shaft, 19 is a rack, 20 is a gear, 21 is a mounting plate, 22 is a mounting bracket, 23 is a rotating shaft, 24 is an ear plate, and 25 is a limit plate. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Please see attached Figure 1 A sawing fixed-length blocking device comprises a linear guide 1, a fixed-length adjustment component, a swing arm component, a lifting component, a steel bar sensing component and a steel bar conveying component; the steel bar conveying component and the linear guide 1 are in a linear structure, the linear guide 1 is arranged in parallel and directly above the steel bar conveying component, and the fixed-length adjustment component is slidably arranged on the linear guide 1; the swing arm component is swingably arranged on the fixed-length adjustment component, and the steel bar sensing component is liftably arranged on the swing arm component through the lifting component, so that the steel bar sensing component can be inserted downward into the steel bar conveying component, and the steel bar material is placed on the steel bar conveying component and can abut against the steel bar sensing component.

[0027] Through the setting of the fixed-length adjustment component, the position of the steel bar sensing component in the steel bar conveying component can be automatically adjusted according to the steel bar cutting length. When the steel bar conveying component transports the steel bar (or steel bar bundle) to abut against the steel bar sensing component, the steel bar sensing component is triggered to stop the transportation of the steel bar (or steel bar bundle) and perform the cutting operation, thereby improving the steel bar processing efficiency.

[0028] The swing arm assembly and the lifting assembly can drive the steel bars (or steel bar bundles) to swing and lift, thereby inserting the steel bar sensing assembly into or removing the steel bar conveying assembly, so that the steel bar sensing assembly can effectively sense the position of the steel bars and avoid the steel bars.

[0029] Please see attached Figure 1 The fixed-length adjustment component includes a servo motor 2, a reducer 3, a motor seat 5, a rack 19 and a gear 20; the servo motor 2 and the reducer 3 are arranged at the bottom of the motor seat 5, the output shaft of the servo motor 2 is connected to the input shaft of the reducer 3, and the output shaft of the reducer 3 is connected to the gear 20; the rack 19 is arranged on the side end face of the linear guide 1, and the gear 20 is rollingly meshed and connected to the rack 19; the top of the motor seat 5 is slidably hung on the top of the linear guide 1 through a hanging plate, and the swing arm assembly is connected to the motor seat 5 and is slidably connected to the linear guide 1.

[0030] The servo motor 2 cooperates with the reducer 3 to adjust the speed of the gear 20, thereby ensuring the stable linear motion of the motor base 5 along the linear guide 1. The gear 20 and the rack 19 are meshed and driven, thereby driving the motor base 5 to drive the steel bar sensing component to move forward or backward along the linear guide 1 to the positioning position required for steel bar cutting, and the movement control accuracy is high.

[0031] Preferably, the hanging plate and the top of the linear guide rail 1 can be slidably connected and limited by means of limit grooves and limit protrusions, or other structural forms of connection can be used to ensure that the fixed-length adjustment component, swing arm component, lifting component, and steel bar sensing component slide smoothly under the linear guide rail 1 and do not fall off.

[0032] Please see attached Figure 1 and attached Figure 2 The swing arm assembly includes a swing cylinder 4, a swing arm 6, a rotating seat 15 and a mounting plate 21; the mounting plate 21 is installed on the motor seat 5 and is slidably connected to the bottom of the linear guide rail 1, the fixed end of the swing cylinder 4 is set at one end of the mounting plate 21, the upper end of the swing arm 6 is swingably set at the other end of the mounting plate 21 through the rotating seat 15, and the lower end of the swing arm 6 is hinged to the telescopic end of the swing cylinder 4; the lifting assembly is set on the swing arm 6.

[0033] The swing cylinder 4, the swing arm 6 and the mounting plate 21 form a triangular structure. Under the telescopic drive of the telescopic end of the swing cylinder 4, the swing arm 6 rotates around the rotating seat 15, changing the shape of the triangular structure, thereby realizing the swing of the swing arm 6 in the vertical plane, and then driving the lifting assembly and the steel bar sensing assembly to rotate synchronously.

[0034] Please see attached Figure 1 and attached Figure 2 The lifting assembly includes a telescopic cylinder 7 and a slide 8 arranged on the swing arm 6; the steel bar sensing assembly is liftably arranged on the swing arm 6 along the slide 8 through a slider (not shown in the figure), and the telescopic end of the telescopic cylinder 7 is connected to the slider.

[0035] When the swing arm 6 swings to a vertical state, the telescopic end of the telescopic cylinder 7 drives the slider to move along the slideway 8, realizing the lifting action of the slider, thereby realizing the steel bar sensing component to be inserted downward into the steel bar conveying component or to be moved upward out of the steel bar conveying component.

[0036] Please see attached Figure 1 To Attachment Figure 3The steel bar sensing component includes a sensing sheet metal 9, a photoelectric switch 11, a compression spring 12, a linear bearing 13 and a mounting bracket 22; the mounting bracket 22 is movably arranged on the slider through the linear bearing 13 via a connecting shaft, and compression springs 12 are abutted between both sides of the slider and the mounting bracket 22; the sensing sheet metal 9 is rotatably arranged on the mounting bracket 22 through a rotating shaft 23, and an ear plate 24 is formed on the sensing sheet metal 9, and the photoelectric switch 11 is arranged on the mounting bracket 22 and faces the ear plate 24, so that the ear plate 24 can rotate and abut against the photoelectric switch 11.

[0037] The mounting bracket 22 can float left and right relative to the connecting shaft and the slider in a direction perpendicular to the steel bar conveying assembly through the linear bearing 13, thereby ensuring that the induction sheet metal 9 can be accurately inserted downward into the steel bar conveying assembly, keeping the induction sheet metal 9 in the center, and avoiding position deviation that affects the precise positioning of the steel bar (or steel bar bundle). The compression springs 12 on both sides can adapt to the floating left and right of the mounting bracket 22 by stretching or compressing, thereby ensuring that the induction sheet metal 9 is stably inserted into the steel bar conveying assembly, and the mounting bracket 22 is moved and reset when the induction sheet metal 9 is removed from the steel bar conveying assembly.

[0038] After the induction sheet metal 9 is inserted into the steel bar conveying assembly, the steel bars (or steel bar bundles) moving in the steel bar conveying assembly are conveyed to contact the induction sheet metal 9, so that the induction sheet metal 9 rotates around the rotating shaft 23, and the ear plate 24 presses the photoelectric switch 11, and the photoelectric switch 11 can be a pressure-type photoelectric switch, so as to trigger the photoelectric switch 11. The induction sheet metal 9 can be made of steel plate, which is not easy to be deformed and damaged under the pressure of the end of the steel bar.

[0039] The photoelectric switch 11 can be controlled in conjunction with the steel bar conveying component and the cutting equipment, so that after the photoelectric switch 11 is triggered, the pressure signal is used to stop the conveying of the steel bars (or steel bar bundles), and the cutting equipment performs the cutting operation on the steel bars (or steel bar bundles).

[0040] Please see attached Figure 2 and attached Figure 3 The mounting bracket 22 is provided with a blocking hard plate 10, which is located between the photoelectric switch 11 and the sensing sheet metal 9, and a through hole (not shown in the figure) is formed on the blocking hard plate 10 for the ear plate 24 to pass through. When the ear plate 24 passes through the blocking hard plate 10 and abuts against the photoelectric switch 11, the sensing sheet metal 9 is just tightly attached to the blocking hard plate 10, and the sensing sheet metal 9 and the blocking hard plate 10 can be synchronously inserted into the steel bar conveying assembly.

[0041] Preferably, the blocking hard plate 10 can be made of thick steel plate. The blocking hard plate 10 can be used to limit the rotation range of the sensing sheet metal 9 to avoid excessive rotation and squeezing of the photoelectric switch 11. At the same time, it plays a certain protective role on the sensing sheet metal 9 to prevent the sensing sheet metal 9 from being squeezed and deformed by the end of the steel bar.

[0042] Please see attached Figure 2 and attached Figure 3 The top two sides of the induction sheet metal 9 are symmetrically provided with limit plates 25, one end of the limit plate 25 is connected to the induction sheet metal 9 to form an inverted L-shaped structure, and the other end of the limit plate 25 is movably connected to the mounting bracket 22 through a tension spring 14.

[0043] When the induction sheet metal 9 rotates under the squeezing action of the steel bar end, the limit plate 25 rotates upward synchronously and stretches the tension spring 14. After the induction sheet metal 9 is separated from the steel bar, the elastic force of the tension spring 14 drives the induction sheet metal 9 to rotate and reset.

[0044] Please see attached Figure 4 The steel bar conveying assembly includes a steel bar conveying trough 16 and rollers 17. The steel bar conveying trough 16 is a U-shaped trough that is wide at the top and narrow at the bottom. A plurality of rollers 17 are arranged at intervals at the bottom of the steel bar conveying trough 16, so that the steel bar material can be movably placed in the steel bar conveying trough 16; the two sides of the induction sheet metal 9 and the blocking hard plate 10 are inclined structures, so that the induction sheet metal 9 and the blocking hard plate 10 can be matched and inserted into the steel bar conveying trough 16 and abut against the end of the steel bar material.

[0045] The steel bar conveyor trough 16 is used to place steel bars (or steel bar bundles). When the roller 17 rotates, the friction between the roller 17 and the steel bars is used to drive the steel bars (or steel bar bundles) to be conveyed along the steel bar conveyor trough 16, so that the steel bars (or steel bar bundles) are moved to the induction sheet metal 9 without manual handling.

[0046] The inner groove wall of the U-shaped groove, which is wider at the top and narrower at the bottom, cooperates with the inclined structure of the induction sheet metal 9 to play a certain guiding role, so that the induction sheet metal 9 can be accurately and stably inserted into the steel bar conveying groove 16, ensuring that the limiting position of the induction sheet metal 9 on the steel bar (or steel bar bundle) accurately meets the fixed length requirements of the steel bar cutting.

[0047] Please see attached Figure 4 A rotating shaft 18 is provided at one side edge of the steel bar conveying trough 16 along the axial direction of the steel bar conveying trough 16 , and one end of the rotating shaft 18 is externally connected to a driving device so that the steel bar conveying trough 16 can be flipped around the rotating shaft 18 as the axis.

[0048] Preferably, the driving device can adopt a high-power motor, which drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the entire steel bar conveying trough 16 and the steel bars (or steel bar bundles) inside it to flip to one side, and pour the steel bars (or steel bar bundles) out of the steel bar conveying trough 16, so as to facilitate the transportation of the steel bars (or steel bar bundles).

[0049] Please see attached Figure 1 To Attachment Figure 4 , the working process and working principle of the utility model are:

[0050] The servo motor 2 and the reducer 3 are started, and the gear 20 is driven to rotate according to the required cutting length of the steel bar. Under the meshing transmission of the gear 20 and the rack 19, the mounting plate 21 is driven to move along the linear guide rail 1, so that the induction sheet metal 9 moves to the required cutting length of the steel bar.

[0051] Start the swing cylinder 4, the telescopic end of the swing telescopic cylinder 4 extends out and causes the swing arm 6 to rotate and swing around the rotating seat 15 to a vertical state, thereby synchronously rotating the induction sheet metal 9 downward to the top of the steel bar conveying groove 16. Then start the telescopic cylinder 7, the telescopic end of the telescopic cylinder 7 extends out to push the slider downward along the slideway 8, so that the induction sheet metal 9 is inserted downward into the steel bar conveying groove 16.

[0052] When the sensing sheet metal 9 moves downward, under the guidance of the inclined surface structure of the sensing sheet metal 9 and the inner wall of the steel bar conveying trough 16, the entire steel bar sensing assembly floats horizontally left and right through the linear bearing 13, thereby ensuring that the lower part of the sensing sheet metal 9 can be matched and inserted into the trough of the steel bar conveying trough 16 and maintain a central position. At this time, the two compression springs 12 are compressed or extended to match the position of the mounting bracket 22, so that the elasticity of the compression springs 12 can be used to drive the steel bar sensing assembly to move and reset when the steel bar sensing assembly moves upward out of the steel bar conveying trough 16.

[0053] Under the rotation of the roller 17, the friction force is used to convey the steel bar (or steel bar bundle) forward along the steel bar conveying trough 16 until the end of the steel bar (or steel bar bundle) contacts the sensing sheet metal 9, so that the sensing sheet metal 9 rotates around the rotating shaft 23 and fits onto the blocking hard plate 10, and the ear plate 24 penetrates the blocking hard plate 10 and presses on the photoelectric switch 11, so that the photoelectric switch 11 is triggered. The pressure signal is used to control the roller 17 to stop rotating, that is, stop conveying the steel bar (or steel bar bundle), accurately position the steel bar (or steel bar bundle) at the required cutting length, and start the cutting equipment to cut the steel bar.

[0054] After the steel bar cutting is completed, the telescopic cylinder 7 is started, and the telescopic end of the telescopic cylinder 7 drives the steel bar sensing component to move upward along the slideway 8 through the slider to get out of the steel bar conveying trough 16; the swing cylinder 4 is started, and the telescopic end of the swing cylinder 4 is retracted to drive the swing arm 6 to rotate upward to the top of the steel bar conveying trough 16. At this time, the steel bar (or steel bar bundle) can continue to be transmitted forward through the roller 17, or the external driving device can be started to drive the rotating shaft 18 to rotate, so that the steel bar conveying trough 16 is turned to one side around the rotating shaft 18 as a whole, and the steel bar is poured out for transportation.

[0055] When you continue cutting the steel bars for the next time, repeat the above steps, which will not be repeated here.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sawing fixed-length blocking device, characterized in that: Including straight line A guide rail (1), a fixed-length adjustment component, a swing arm component, a lifting component, a steel bar sensing component and a steel bar conveying component; the steel bar conveying component and the linear guide rail (1) are in a linear structure, the linear guide rail (1) is arranged in parallel and directly above the steel bar conveying component, the fixed-length adjustment component is slidably arranged on the linear guide rail (1); the swing arm component is swingably arranged on the fixed-length adjustment component, and the steel bar sensing component is liftably arranged on the swing arm component via the lifting component, so that the steel bar sensing component can be inserted downward into the steel bar conveying component, and the steel bar material is placed on the steel bar conveying component and can abut against the steel bar sensing component.

2. The sawing fixed-length blocking device according to claim 1 is characterized in that: The fixed-length adjustment component comprises a servo motor (2), a reducer (3), a motor seat (5), a rack (19) and a gear (20); the servo motor (2) and the reducer (3) are arranged at the bottom of the motor seat (5), the output shaft of the servo motor (2) is connected to the input shaft of the reducer (3), and the output shaft of the reducer (3) is connected to the gear (20); the rack (19) is arranged on the side end surface of the linear guide (1), and the gear (20) is connected to the rack (19) in a rolling meshing manner; the top of the motor seat (5) is slidably hung on the top of the linear guide (1), and the swing arm assembly is connected to the motor seat (5) and is slidably connected to the linear guide (1).

3. The sawing fixed-length blocking device according to claim 2 is characterized in that: The swing arm assembly comprises a swing cylinder (4), a swing arm (6), a rotating seat (15) and a mounting plate (21); the mounting plate (21) is mounted on the motor seat (5) and slidably connected to the bottom of the linear guide rail (1); the fixed end of the swing cylinder (4) is arranged at one end of the mounting plate (21); the upper end of the swing arm (6) is swingably arranged at the other end of the mounting plate (21) through the rotating seat (15); the lower end of the swing arm (6) is hinged to the telescopic end of the swing cylinder (4); and the lifting assembly is arranged on the swing arm (6).

4. The sawing fixed-length blocking device according to claim 3 is characterized in that: The lifting assembly comprises a telescopic cylinder (7) and a slideway (8) arranged on a swing arm (6); the steel bar sensing assembly is arranged on the swing arm (6) in a liftable manner along the slideway (8) via a slide block, and the telescopic end of the telescopic cylinder (7) is connected to the slide block.

5. The sawing fixed-length blocking device according to claim 4 is characterized in that: The steel bar sensing component comprises a sensing sheet metal (9), a photoelectric switch (11), a compression spring (12), a linear bearing (13) and a mounting bracket (22); the mounting bracket (22) is movably arranged on a slider via a linear bearing (13), and compression springs (12) are abutted between both sides of the slider and the mounting bracket (22); the sensing sheet metal (9) is rotatably arranged on the mounting bracket (22), an ear plate (24) is formed on the sensing sheet metal (9), and the photoelectric switch (11) is arranged on the mounting bracket (22) and faces the ear plate (24), so that the ear plate (24) can be rotatably abutted against the photoelectric switch (11).

6. The sawing fixed-length blocking device according to claim 5 is characterized in that: The mounting bracket (22) is provided with a blocking hard plate (10), which is located between the photoelectric switch (11) and the sensing sheet metal (9), and a through hole for the ear plate (24) to pass through is formed on the blocking hard plate (10). When the ear plate (24) passes through the blocking hard plate (10) and abuts against the photoelectric switch (11), the sensing sheet metal (9) is tightly attached to the blocking hard plate (10), and the sensing sheet metal (9) and the blocking hard plate (10) can be synchronously inserted into the steel bar conveying component.

7. The sawing fixed-length blocking device according to claim 5 or 6, characterized in that: Limiting plates (25) are symmetrically arranged on both sides of the top of the induction sheet metal (9), one end of the limiting plate (25) is connected to the induction sheet metal (9) to form an inverted L-shaped structure, and the other end of the limiting plate (25) is movably connected to the mounting bracket (22) through a tension spring (14).

8. The sawing fixed-length blocking device according to claim 6 is characterized in that: The steel bar conveying assembly comprises a steel bar conveying trough (16) and rollers (17); the steel bar conveying trough (16) is a U-shaped trough which is wide at the top and narrow at the bottom; a plurality of rollers (17) are arranged at intervals at the bottom of the steel bar conveying trough (16) so that the steel bar material can be movably placed in the steel bar conveying trough (16); the two sides of the induction sheet metal (9) and the blocking hard plate (10) are inclined structures so that the induction sheet metal (9) and the blocking hard plate (10) can be matched and inserted into the steel bar conveying trough (16) and abut against the end of the steel bar material.

9. The sawing fixed-length blocking device according to claim 8 is characterized in that: A rotating shaft (18) is provided at one side edge of the steel bar conveying trough (16) along the axial direction of the steel bar conveying trough (16), and one end of the rotating shaft (18) is externally connected to a driving device so that the steel bar conveying trough (16) can be turned over with the rotating shaft (18) as the axis.

Images