A safety reinforcing bar cutting machine for construction

Abstract

The application belongs to the technical field of steel bar cutting, and particularly relates to a building steel bar cutting machine with safety protection, which comprises a mounting base, a plurality of supporting legs fixedly installed on the bottom periphery of the mounting base, a box body fixedly installed on the top of the mounting base through a first supporting plate, a cutting mechanism arranged on the box body, the cutting mechanism being capable of realizing rapid cutting of steel bars, first protection mechanisms symmetrically arranged on the two sides of the top of the mounting base, and a second protection mechanism arranged on the top of the box body, the first protection mechanisms and the second protection mechanism being capable of realizing safety protection during operation of the steel bar cutting machine and effectively ensuring the personal safety of operators, a clamping mechanism symmetrically arranged in a groove one, the clamping mechanism being capable of realizing reliable fixing during steel bar cutting operation and improving the accuracy of steel bar cutting, and auxiliary feeding mechanisms symmetrically fixedly installed on the side walls of the mounting base, the auxiliary feeding mechanisms being capable of assisting operators to realize feeding of steel bars to be cut and improving the cutting efficiency of the steel bar cutting machine.

Description

Technical Field

[0001] This invention belongs to the field of rebar cutting technology, specifically a rebar cutting machine with safety protection for construction. Background Technology

[0002] Rebar cutting machines are key equipment used in construction to accurately cut rebar to the designed length. They are widely used in the rebar processing of building construction, bridges, tunnels, water conservancy and other projects. According to different structural forms, they are divided into mechanical transmission cutting machines, hydraulic cutting machines and CNC cutting machines. The working principle of rebar cutting machines is that the rebar first undergoes elastic deformation under the shearing force of the blade. When the shear stress exceeds the shear strength of the rebar, plastic deformation occurs and it breaks.

[0003] In existing technologies, rebar cutting machines for construction lack protective mechanisms during rebar cutting operations. This makes it impossible to prevent scrap from flying during the cutting process, which could injure operators. Furthermore, operators are forced to face the cutting surface directly, increasing safety hazards and compromising operator safety. Secondly, the lack of clamping mechanisms makes it difficult to reliably hold the rebar during cutting, reducing cutting accuracy and increasing the scrap rate. Additionally, the absence of auxiliary feeding mechanisms necessitates manual feeding and adjustment of the cutting position by the operator, resulting in low efficiency and increased labor intensity. Therefore, there is an urgent need to design a rebar cutting machine for construction with safety protection features to address these problems. Summary of the Invention

[0004] This invention provides a steel bar cutting machine with safety protection for construction, addressing at least one of the following technical problems: First, the lack of a protective mechanism during steel bar cutting operations makes it impossible to prevent scrap from flying during the cutting process, potentially injuring operators. Second, the operator must face the cutting operation directly, increasing safety hazards and compromising personal safety. Third, the lack of a clamping mechanism makes it difficult to reliably hold the steel bar during cutting, reducing cutting accuracy and increasing scrap rates. Fourth, the lack of an auxiliary feeding mechanism requires manual feeding and adjustment of the cutting position, resulting in low machine efficiency and increased workload for operators.

[0005] To solve the above-mentioned technical problems, the present invention discloses a steel bar cutting machine with safety protection for construction, including a mounting base. Several support legs are fixedly installed on the bottom periphery of the mounting base. A first support plate is fixedly installed on one side of the top of the mounting base. A box is fixedly installed on the top of the first support plate. A cutting mechanism is provided on the box. A first protective mechanism is symmetrically arranged on both sides of the top of the mounting base. A second protective mechanism is arranged on the top of the box. The top of the mounting base is respectively provided with a first groove and a second groove. A clamping mechanism is symmetrically arranged in the first groove. An auxiliary feeding mechanism is symmetrically fixedly installed on the side wall of the mounting base.

[0006] Preferably, a plurality of support blocks are provided at intervals in the first and second grooves, and rollers are rotatably connected to the top of the plurality of support blocks. Two guide plates are installed at the through holes embedded in the second groove, and the drawer is fixedly installed at the bottom of the mounting base corresponding to the through holes.

[0007] Preferably, the cutting mechanism includes a servo motor, which is fixedly mounted on the side wall of the support plate. A drive pulley is fixedly mounted on the output shaft of the servo motor. A driven pulley is rotatably connected to the side wall of the housing via a first transmission shaft. The driven pulley and the drive pulley are connected by several first belts. The first transmission shaft located inside the housing is connected to a transmission assembly. The transmission assembly is used to drive the crankshaft connecting rod structure. A fixed bracket is embedded on one side of the bottom of the housing. One end of the connecting rod is hinged to a cutting assembly. The cutting assembly is slidably connected within the fixed bracket. A protective cover is installed on the side wall of the housing.

[0008] Preferably, the cutting assembly includes a drive rod, the upper end of which is hinged to one end of the connecting rod, the lower end of which is fixedly connected to a first cutter, and the two sides of the drive rod are correspondingly fixedly connected to a sliding groove in the side wall of the fixed bracket by a first spring. The drive rod and the first cutter are slidably connected to the inner wall of the fixed bracket, and a second cutter is installed in the groove, which contacts the first cutter.

[0009] Preferably, the first protective mechanism includes a forward and reverse drive motor, which is fixedly mounted on the side wall of the support plate via a first mounting plate. A first bevel gear is fixedly connected to the output shaft of the forward and reverse drive motor. Two second support plates are symmetrically fixedly mounted on the top of the mounting base. The two ends of a rotating shaft rotate through the two second support plates and are connected to a first protective component. A second bevel gear is fixedly connected to the middle of the rotating shaft. The second bevel gear meshes with the first bevel gear. Two first guide rails are symmetrically fixedly mounted on the top of the mounting base. Two baffles are mounted on one side of the two first guide rails via mounting posts. Two baffles are fixedly connected to the first protective component, and the bottoms of the two baffles are slidably connected to the first guide rails.

[0010] Preferably, the first protective component includes a turntable, which is fixedly connected to one end of the rotating shaft. A slide rail is fixedly installed on the top of the second support plate. A slide rod is slidably connected to the slide rail. A transmission rod is hinged to the bottom of the slide rod. A second slide groove is embedded in the middle of the transmission rod. The second slide groove is hinged to the turntable away from the center by a hinge block. The hinge block is slidably connected to the second slide groove. The lower end of the transmission rod is hinged to the side wall of the support plate. The slide rod is fixedly connected to the inner wall of the second baffle by a plurality of connecting blocks.

[0011] Preferably, the second protective mechanism includes a first protective plate and a second protective plate. The second protective plate is slidably connected inside the first protective plate, and a transparent window is embedded in the second protective plate. Two mounting blocks are symmetrically fixedly installed on the top of the housing. The two ends of the second drive shaft rotate through the two mounting blocks and are respectively fixedly connected to a first connecting rod. One end of the first connecting rod is hinged to the top of the first protective plate. One end of each of the two second connecting rods is hinged to the mounting blocks at a distance from the first connecting rod, and the other end of the second connecting rod is hinged to the top of the first protective plate. A winding wheel is fixedly installed in the middle of the second drive shaft, and the winding wheel is connected to the top of the second protective plate through a pull rope. A connecting shaft is fixedly connected to one end of the second drive shaft. A first pulley is fixedly installed on the connecting shaft, and a second pulley is fixedly installed on one side of the rotating shaft. The first pulley is connected to the second pulley through a second belt.

[0012] Preferably, the clamping mechanism includes a mounting frame, one side of which is fixedly mounted on the inner wall of the first groove, the fixed end of the cylinder is fixedly mounted on the inner wall of one side of the mounting frame, the telescopic end of the cylinder is fixedly connected to a connecting plate, the first slider and the second slider are slidably connected to the bottom and top of the mounting frame respectively, the top of the first slider is fixedly connected to the connecting plate, one end of the first C-shaped rod and the second C-shaped rod are fixedly connected to the first slider and the second slider respectively, the other end of the first C-shaped rod and the second C-shaped rod are fixedly mounted with a clamping plate, the middle part of the I-shaped bracket is hinged to one side of the mounting frame, and the two sides of the I-shaped bracket are respectively hinged to the middle parts of the first C-shaped rod and the second C-shaped rod.

[0013] Preferably, the auxiliary feeding mechanism includes a second mounting plate, which is fixedly mounted on the side wall of the mounting base. An auxiliary box is fixedly mounted on one side of the top of the second mounting plate, and a top plate is fixedly mounted on the top of the second mounting plate. A drive motor is fixedly connected to the bottom of the auxiliary box via a mounting base. The output shaft of the drive motor is fixedly connected to a drive shaft. One end of the drive shaft rotates through the side wall of the auxiliary box and is fixedly mounted with a disc. A drive gear is fixedly mounted on the drive shaft. A driven shaft is rotatably connected to the side wall of the auxiliary box at a distance from the drive shaft. A driven gear is fixedly mounted on one side of the driven shaft. The driven gear meshes with the drive gear, and a disc is fixedly connected to one end of the driven shaft.

[0014] Preferably, the system further includes a first mounting bracket and a second mounting bracket. The first mounting bracket and the second mounting bracket are respectively hinged to the two discs away from the center via hinge rods. A second guide rail is fixedly connected to the side wall of the first mounting bracket, and a third slider is fixedly connected to the side wall of the second mounting bracket. The third slider is slidably connected to the guide rail. Fixing blocks are slidably connected inside the first mounting bracket and the second mounting bracket, and the two sides of the bottom of the two fixing blocks are fixedly connected to the inner walls of the first mounting bracket and the second mounting bracket via second springs. Anti-slip blocks are fixedly installed on both fixing blocks.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The present invention discloses a steel bar cutting machine with safety protection for construction. Through a cutting mechanism, it can quickly cut steel bars. A first protective mechanism is symmetrically arranged on both sides of the top of the mounting base, and a second protective mechanism is located on the top of the housing. The combined action of the first and second protective mechanisms provides safety protection during steel bar cutting operations, effectively ensuring the personal safety of the operator. Simultaneously, the aforementioned protective mechanisms can automatically open and close according to operational needs, facilitating cleaning and maintenance of the inside of the steel bar cutting machine by the operator.

[0017] 2. The steel bar cutting machine with safety protection for construction described in this invention has a clamping mechanism symmetrically arranged in a groove. This, in conjunction with the cutting mechanism, ensures reliable fixing of the steel bar during cutting operations, resulting in a smoother cut surface that meets product quality requirements and significantly improves the accuracy of steel bar cutting. Simultaneously, an auxiliary feeding mechanism is symmetrically fixedly installed on the side wall of the mounting base, facilitating the operator's feeding of the steel bar to be cut onto the steel bar cutting machine. This improves the machine's efficiency and effectively avoids safety hazards during manual feeding. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure in this invention;

[0020] Figure 2 This is a schematic diagram of the cutting mechanism in this invention;

[0021] Figure 3 This is a schematic diagram of the cutting component in this invention;

[0022] Figure 4 This is a schematic diagram of the connection between the first protective component and the mounting base in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the second protective mechanism in this invention;

[0024] Figure 6 This is a schematic diagram of the clamping mechanism in this invention;

[0025] Figure 7 This is a schematic diagram of the auxiliary feeding mechanism in this invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the first mounting bracket in this invention.

[0027] In the diagram: 1. Mounting base; 101. Groove 1; 102. Groove 2; 2. Support leg; 21. First support plate; 4. Housing; 5. Cutting mechanism; 51. Servo motor; 52. Drive pulley; 53. Driven pulley; 54. First transmission shaft; 55. First belt; 56. Transmission assembly; 57. Crankshaft; 58. Connecting rod; 59. Fixed bracket; 510. Cutting assembly; 5101. Drive rod; 5102. First cutter; 5103. First spring; 5104. Slide 1; 5105. Second cutter 511. Protective cover; 6. First protective mechanism; 61. Forward and reverse drive motor; 62. First mounting plate; 63. First bevel gear; 64. Second support plate; 65. Rotating shaft; 66. First protective assembly; 661. Turntable; 662. Slide rail; 663. Slide rod; 664. Transmission rod; 665. Slide groove two; 666. Hinge block; 667. Connecting block; 67. Second bevel gear; 68. First guide rail; 69. Baffle one; 610. Mounting column; 611. Baffle two; 7. Second protective mechanism; 71. First 72. Protective plate; 73. Second protective plate; 74. Transparent window; 75. Second connecting rod; 76. Winding reel; 77. Pull rope; 78. Connecting shaft; 79. First pulley; 70. Second pulley; 710. Second belt; 711. Mounting block; 712. Second drive shaft; 713. First connecting rod; 8. Clamping mechanism; 81. Mounting bracket; 82. Cylinder; 83. Connecting plate; 84. First slider; 85. Second slider; 86. First C-shaped rod; 87. Second C-shaped rod; 88. Clamping plate; 89. I-shaped bracket; 9 91. Auxiliary feeding mechanism; 92. Second mounting plate; 93. Auxiliary box; 94. Top plate; 95. Drive motor; 96. Drive shaft; 97. Disc; 98. Drive gear; 99. Driven shaft; 90. Driven gear; 910. First mounting bracket; 911. Second mounting bracket; 912. Hinge rod; 913. Second guide rail; 914. Third slider; 915. Fixing block; 916. Second spring; 917. Anti-slip block; 10. Support block; 11. Roller; 12. Through hole; 13. Guide plate; 14. Drawer. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] The present invention provides the following embodiments. Example 1

[0032] This invention provides a steel bar cutting machine with safety protection for construction, such as... Figures 1-3 As shown, the device includes a mounting base 1, with several support legs 2 fixedly installed on the bottom periphery of the mounting base 1. A first support plate 21 is fixedly installed on one side of the top of the mounting base 1, and a housing 4 is fixedly installed on the top of the first support plate 21. A cutting mechanism 5 is provided on the housing 4. A first protective mechanism 6 is symmetrically arranged on both sides of the top of the mounting base 1, and a second protective mechanism 7 is arranged on the top of the housing 4. The top of the mounting base 1 is respectively provided with a first groove 101 and a second groove 102. A clamping mechanism 8 is symmetrically arranged in the first groove 101, and an auxiliary feeding mechanism 9 is symmetrically fixedly installed on the side wall of the mounting base 1.

[0033] Preferably, a plurality of support blocks 10 are provided at intervals in the first groove 101 and the second groove 102, and rollers 11 are rotatably connected to the top of the plurality of support blocks 10. Two guide plates 13 are installed at the through holes 12 embedded in the second groove 102, and drawers 14 are fixedly installed at the bottom of the mounting base 1 corresponding to the through holes 12.

[0034] Preferably, the cutting mechanism 5 includes a servo motor 51, which is fixedly mounted on the side wall of the support plate. A drive pulley 52 is fixedly mounted on the output shaft of the servo motor 51. A driven pulley 53 is rotatably connected to the side wall of the housing 4 via a first transmission shaft 54. The driven pulley 53 and the drive pulley 52 are connected by several first belts 55. The first transmission shaft 54 ​​located inside the housing 4 is connected to a transmission assembly 56. The transmission assembly 56 is used to drive the crankshaft 57 connecting rod structure. A fixed bracket 59 is embedded on one side of the bottom of the housing 4. One end of the connecting rod 58 is hinged to a cutting assembly 510. The cutting assembly 510 is slidably connected inside the fixed bracket 59. A protective cover 511 is installed on the side wall of the housing 4.

[0035] Preferably, the cutting assembly 510 includes a drive rod 5101, the upper end of which is hinged to one end of the connecting rod 58, the lower end of which is fixedly connected to a first cutter 5102, and the two sides of the drive rod 5101 are correspondingly fixedly connected to the sliding groove 5104 on the side wall of the fixed bracket 59 by a first spring 5103. The drive rod 5101 and the first cutter 5102 are slidably connected to the inner wall of the fixed bracket 59, and a second cutter 5105 is installed in the second groove 102, and the second cutter 5105 is in contact with the first cutter 5102.

[0036] The working principle and beneficial effects of the above technical solution are as follows:

[0037] The aforementioned rebar cutter with safety protection for construction includes a mounting base 1. Several support legs 2 are fixedly installed on the bottom periphery of the mounting base 1, providing stable support for the rebar cutter. A housing 4 is fixedly installed on the top of the mounting base 1 via a first support plate 21. A cutting mechanism 5 is installed on the housing 4, enabling rapid cutting of rebar while ensuring cutting quality. A first protective mechanism 6 is symmetrically arranged on both sides of the top of the mounting base 1, and a second protective mechanism 7 is located on the top of the housing 4. The combined action of the first and second protective mechanisms provides safety protection during rebar cutting operations, effectively ensuring the personal safety of the operator. The top of the mounting base 1 has two grooves, one 101 and the other 102. A clamping mechanism 8 is symmetrically arranged within the first groove 101, working in conjunction with the cutting mechanism 5 to reliably fix the rebar during cutting operations. The processed steel bar cross-section is smoother; the auxiliary feeding mechanism 9 is symmetrically fixedly installed on the side wall of the mounting base 1, which facilitates the operation of the operator to feed the steel bar to be cut on the construction steel bar cutting machine with safety protection; at the same time, a number of support blocks 10 are set at intervals in the first groove 101 and the second groove 102, and the top of the support blocks 10 is rotatably connected to the rollers 11, which can provide support and positioning for the auxiliary feeding mechanism 9 to transport materials into the steel bar cutting machine, and can speed up the material conveying speed. Two guide plates 13 are installed at the through hole 12 embedded in the second groove 102. The drawer 14 is fixedly installed at the bottom of the mounting base 1 corresponding to the through hole 12, which can guide the steel bar waste cut by the cutting mechanism 5, so that it falls into the drawer 14 through the through hole 12 for collection and subsequent unified processing, avoiding the waste generated by the steel bar cutting end from spilling into the steel bar cutting machine and the surrounding area, affecting the cutting operation of the steel bar cutting machine and causing safety hazards.

[0038] The cutting mechanism 5 described above, when cutting steel bars, first starts the servo motor 51, which drives the drive pulley 52 to rotate, causing the driven pulleys 53 connected by several first belts 55 to rotate synchronously. Then, the driven pulleys 53 drive the first transmission shaft 54 ​​to rotate along the side wall of the housing 4. At this time, the first transmission shaft 54 ​​located inside the housing 4 drives the transmission assembly 56 to drive the crankshaft 57 to rotate. The crankshaft 57 connecting rod structure allows the drive rod 5101, which is hinged to the connecting rod 58, to move up and down along the side wall of the fixed bracket 59. Then, the drive rod 5101 drives the first cutter 5102 to move up and down along the first slide groove 5104, which, together with the second cutter fixedly installed in the second groove 102, cuts the steel bar. The cutting of the rebar involves the servo motor 51 rotating and then being decelerated by the first belt 55 and the transmission assembly 56, driving the crankshaft 57 to make a circular motion. This motion is then converted into the reciprocating linear motion of the first cutter 5102 by the connecting rod 58. When the movable first cutter 5102 approaches the fixed second cutter 5105, a shearing force is generated. The sharp edge of the cutter applies a shearing force exceeding the tensile strength to the rebar, causing it to break and completing the cutting operation. The drive rod 5101 is connected to the slide groove 5104 by the first spring 5103. The first spring 5103 provides cushioning and allows the first cutter 5102 to return to its original position after the cutting operation, preventing the first cutter 5102 from jamming in case of an emergency, which would affect the cutting effect of the rebar cutter. Example 2

[0039] Based on Example 1, such as Figure 1 , Figures 3-5 As shown, the first protective mechanism 6 includes a forward and reverse drive motor 61, which is fixedly mounted on the side wall of the support plate via a first mounting plate 62. A first bevel gear 63 is fixedly connected to the output shaft of the forward and reverse drive motor 61. Two second support plates 64 are symmetrically fixedly mounted on the top of the mounting base 1. The two ends of a rotating shaft 65 rotate through the two second support plates 64 and are connected to a first protective component 66. A second bevel gear 67 is fixedly connected to the middle of the rotating shaft 65. The second bevel gear 67 meshes with the first bevel gear 63. Two first guide rails 68 are symmetrically fixedly mounted on the top of the mounting base 1. Two baffles 69 are installed on one side of the two first guide rails 68 via mounting posts 610. Two baffles 611 are fixedly connected to the first protective component 66, and the bottoms of the two baffles 611 are slidably connected to the first guide rails 68.

[0040] Preferably, the first protective component 66 includes a turntable 661, which is fixedly connected to one end of the rotating shaft 65. A slide rail 662 is fixedly installed on the top of the second support plate 64. A slide rod 663 is slidably connected in the slide rail 662. A transmission rod 664 is hinged to the bottom of the slide rod 663. A second slide groove 665 is embedded in the middle of the transmission rod 664. The second slide groove 665 is hinged to the turntable 661 away from the center by a hinge block 666. The hinge block 666 is slidably connected in the second slide groove 665. The lower end of the transmission rod 664 is hinged to the side wall of the support plate. The slide rod 663 is fixedly connected to the inner wall of the second baffle 611 by a plurality of connecting blocks 667.

[0041] Preferably, the second protective mechanism 7 includes a first protective plate 71 and a second protective plate 72. The second protective plate 72 is slidably connected within the first protective plate 71, and a transparent viewing window 73 is embedded in the second protective plate 72. Two mounting blocks 711 are symmetrically fixedly installed on the top of the housing 4. The two ends of the second drive shaft 712 rotate through the two mounting blocks 711 respectively and are respectively fixedly connected to a first connecting rod 713. One end of the first connecting rod 713 is hinged to the top of the first protective plate 71, and one end of the two second connecting rods 74 is spaced apart from the first connecting rod 713. The two connecting rods are respectively hinged to the mounting block 711, and the other end of the second connecting rod 74 is hinged to the top of the first protective plate 71. The winding wheel 75 is fixedly installed in the middle of the second transmission shaft 712, and the winding wheel 75 is connected to the top of the second protective plate 72 through the pull rope 76. The connecting shaft 77 is fixedly connected to one end of the second transmission shaft 712. The first pulley 78 is fixedly installed on the connecting shaft 77, and the second pulley 79 is fixedly installed on one side of the rotating shaft 65. The first pulley 78 is connected to the second pulley 79 through the second belt 710.

[0042] The working principle and beneficial effects of the above technical solution are as follows:

[0043] The first protective mechanism 6, symmetrically arranged on both sides of the top of the mounting base 1, and the second protective mechanism 7 arranged around the perimeter of the housing 4, provide comprehensive safety protection for the rebar cutting machine during rebar cutting operations, effectively ensuring the personal safety of the operators. When the first protective mechanism 6 needs to protect the rebar cutter, the operator first starts the forward and reverse drive motor 61, which drives the first bevel gear 63 to rotate. Then, the first bevel gear 63 meshes with the second bevel gear 67, causing the rotating shaft 65 to rotate along the second support plate 64, thereby driving the turntable 661 to rotate synchronously. Then, the transmission rod 664 connected by the hinge block 666 rotates along the hinge point between the lower end of the transmission rod 664 and the second support plate 64 under the rotation of the turntable 661. The hinge block 666 slides in the slide groove 665, which can limit the swing of the transmission rod 664 with the rotation of the turntable 661, thereby driving the slide rod 663 hinged at the top of the transmission rod 664 to move along the slide rail 662. Then, it is connected by several connecting blocks 667. The sliding rod 663 and the second baffle 611 move together. As the sliding rod 663 moves, the second baffle 611 slides along the first guide rail 68, thus completing the sliding of the two second baffles 611 to the designated position. Together with the two second baffles 611 fixedly installed by the support column, they complete the enclosure of the cutting part of the rebar cutter, realizing the safety protection during the operation of the rebar cutter. Conversely, when it is necessary to expose the internal working space of the rebar cutter, the forward and reverse drive motors 61 only need to rotate in opposite directions to drive the first protective component 66 to make the two second baffles 611 slide along the sliding rail 662, so that the two second baffles 611 overlap with the rear side of the first baffle 69. In this way, the rebar cutter can control the operation of the first protective mechanism 6 according to the actual operation needs. While ensuring a safe working environment for the operator, it also facilitates the operator to clean the internal working environment and maintain key components.

[0044] Meanwhile, when the second protective mechanism 7 needs to be opened, the second pulley 79, which is fixedly connected to the rotating shaft 65, will rotate with the rotating shaft 65. Then, the first pulley 78 is connected to the second pulley 79 through the second belt 710, so that the first pulley 78 and the pulley connecting shaft 77 rotate synchronously. The second transmission shaft 712, which is fixedly connected to the connecting shaft 77, rotates along the two mounting blocks 711. At this time, the winding wheel 75, which is fixedly installed on the second transmission shaft 712, rotates synchronously. The winding wheel 75 is connected to the second protective plate 72 through the pull rope 76. As the winding wheel 75 rotates, the pull rope 76 pulls the second protective plate 72 to slide along the first protective plate 71 and gradually retract into the first protective plate 71. Secondly, as the second transmission shaft 712 continues to rotate, it will drive the two first connecting rods 713 to rotate. One end of the two first connecting rods 713 is hinged to the top of the first protective plate 71, and the first protective plate 71 and the two mounting blocks 711 are also connected by two second connecting rods 74. The hinge mechanism, under the action of the two second connecting rods 74, causes the two first connecting rods 713 to drive the first protective plate 71 to rotate around the hinge point between the second connecting rods 74 and the mounting block 711. Then, the first protective plate 71 is continuously lifted and flipped, and finally, it stops together with the second protective plate 72 at the top of the housing 4, thus exposing the internal space of the rebar cutter. When the second protective mechanism 7 needs to cooperate with the first protective mechanism 6 to protect the rebar cutter, the pull rope 76 on the winding wheel 75 is released as the rotating shaft 65 rotates, and the first protective plate 71 flips and falls to the protective position. The second protective plate 72 slides out of the first protective plate 71 under the action of gravity. Thus, the first protective plate 71 and the second protective plate 72 work together to seal the internal working environment of the rebar cutter. The transparent viewing window 73 set on the second protective plate 72 is made of high-strength explosion-proof glass, which not only achieves the protection function, but also allows the operator to observe the working status of the rebar cutter in real time. Example 3

[0045] Based on Example 1 or 2, such as Figure 2 , Figure 6As shown, the clamping mechanism 8 includes a mounting frame 81. One side of the mounting frame 81 is fixedly mounted on the inner wall of the groove 101. The fixed end of the cylinder 82 is fixedly mounted on the inner wall of one side of the mounting frame 81. The telescopic end of the cylinder 82 is fixedly connected to a connecting plate 83. The first slider 84 and the second slider 85 are slidably connected to the bottom and top of the mounting frame 81, respectively. The top of the first slider 84 is fixedly connected to the connecting plate 83. One end of the first C-shaped rod 86 and the second C-shaped rod 87 are fixedly connected to the first slider 84 and the second slider 85, respectively. The other end of the first C-shaped rod 86 and the second C-shaped rod 87 is fixedly mounted with a clamping plate 88. The middle part of the I-shaped bracket 89 is hinged to one side of the mounting frame 81, and the two sides of the I-shaped bracket 89 are hinged to the middle parts of the first C-shaped rod 86 and the second C-shaped rod 87, respectively.

[0046] The working principle and beneficial effects of the above technical solution are as follows:

[0047] The clamping mechanism 8, located in the two grooves 101 on the mounting base 1, can fix the rebar during the cutting operation, preventing the rebar on both sides of the blade from shifting during the cutting process. This effectively avoids inaccurate cutting length and uneven cross-section caused by rebar shifting during the cutting process, resulting in rebar that does not meet requirements after cutting. When the clamping mechanism 8 needs to fix the rebar to be cut, the cylinder 82 mounted on the mounting frame 81 extends and retracts, thereby driving the first slider 84 fixedly connected to the connecting plate 83 to slide. The first slider 84 slides along the lower part of the mounting frame 81, and then the sliding of the first slider 84 drives the hinged first C-shaped rod 86 to move synchronously. The first C-shaped rod 86 and the second C-shaped rod 87 are connected by an I-shaped bracket 89. At this time, the I-shaped bracket 89 will swing under the action of the first C-shaped rod 86, and then the second C-shaped rod 87 will swing under the action of the I-shaped bracket 89. Driven by the frame 89, the second slider 85 slides synchronously along the top of the mounting frame 81. At this time, the clamping plate 88, which is fixedly installed at one end of the first C-shaped rod 86 and the second C-shaped rod 87, will gradually move closer, thereby achieving a stable fixed clamping of the rebar. Conversely, as the cylinder 82 contracts, the first C-shaped rod 86 and the second C-shaped rod 87 will drive the clamping plate 88 to gradually detach from the rebar, thereby canceling the fixed clamping of the rebar. The above-mentioned clamping mechanism 8 can greatly improve the accuracy of the rebar cutting machine in the cutting operation and ensure that the cut product meets the quality requirements. Example 4

[0048] Based on Example 1, such as Figure 1 , Figures 7-8As shown, the auxiliary feeding mechanism 9 includes a second mounting plate 91, which is fixedly mounted on the side wall of the mounting base 1. An auxiliary box 92 is fixedly mounted on one side of the top of the second mounting plate 91, and a top plate 93 is fixedly mounted on the top of the second mounting plate 91. A drive motor 94 is fixedly connected to the bottom of the auxiliary box 92 through a mounting seat. The output shaft of the drive motor 94 is fixedly connected to a drive shaft 95. One end of the drive shaft 95 rotates through the side wall of the auxiliary box 92 and is fixedly mounted with a disc 96. A drive gear 97 is fixedly mounted on the drive shaft 95. A driven shaft 98 is rotatably connected to the side wall of the auxiliary box 92 at a distance from the drive shaft 95. A driven gear 99 is fixedly mounted on one side of the driven shaft 98. The driven gear 99 meshes with the drive gear 97, and one end of the driven shaft 98 is fixedly connected to the disc 96.

[0049] Preferably, the system further includes a first mounting bracket 910 and a second mounting bracket 911. The first mounting bracket 910 and the second mounting bracket 911 are respectively hinged to the two discs 96 away from the center via hinge rods 912. A second guide rail 913 is fixedly connected to the side wall of the first mounting bracket 910, and a third slider 914 is fixedly connected to the side wall of the second mounting bracket 911. The third slider 914 is slidably connected to the guide rail. Fixing blocks 915 are slidably connected inside the first mounting bracket 910 and the second mounting bracket 911, respectively. The two sides of the bottom of the two fixing blocks 915 are fixedly connected to the inner walls of the first mounting bracket 910 and the second mounting bracket 911 via second springs 916. Anti-slip blocks 917 are fixedly installed on the two fixing blocks 915.

[0050] The working principle and beneficial effects of the above technical solution are as follows:

[0051] The auxiliary feeding mechanism 9, which is installed on the side wall of the mounting base 1 via the second mounting plate 91, facilitates the operation of the operator to feed the steel bars to be cut on the steel bar cutting machine with safety protection, improves the working efficiency of the steel bar cutting machine, and can also effectively avoid safety hazards during the manual feeding process. When the operator feeds material into the rebar cutting machine, the auxiliary feeding mechanism 9 starts working. First, the drive motor 94 located in the housing 4 rotates, driving the drive shaft 95 to rotate. At the same time, the disc 96 and drive gear 97 fixedly connected to the drive shaft 95 rotate synchronously. The drive gear 97 meshes with the driven gear 99 for transmission. Then, the driven shaft 98 rotates along the side wall of the auxiliary housing 92. Simultaneously, the disc 96 fixedly installed on the driven shaft 98 also rotates synchronously. Then, the two discs 96 are respectively connected to the first mounting bracket 910 and the second mounting bracket 911 one-to-one through the hinge rod 912. The two discs 96 rotate in opposite directions, so that as the two discs 96 rotate, the first mounting bracket 910 and the second mounting bracket 911 move closer and further apart. At this time, the rebar placed on the top plate 93 will move along with the fixing block 915 fixedly connected to the first mounting bracket 910 and the second mounting bracket 911. As the rebar is nearing contraction, it is clamped. With the continuous rotation of the disc 96, the rebar is smoothly fed into the rebar cutter. At the same time, the sliding connection fixing block 915 inside the first mounting bracket 910 and the second mounting bracket 911, under the action of the second spring 916, can better adapt to rebars of different specifications. The elastic force of the second spring 916 can adjust the position of the fixing block 915 inside the first mounting bracket 910 and the second mounting bracket 911, thereby better clamping and feeding the rebar. Meanwhile, the anti-slip block 917 set on the fixing block 915 can prevent the rebar from slipping during feeding, which can improve the stability and speed of the first mounting bracket 910 and the second mounting bracket 911 in conveying the rebar into the rebar cutter. The auxiliary feeding mechanism 9 set on both sides of the mounting base 1 can significantly improve the feeding speed of the rebar cutter and significantly improve the working efficiency of the rebar cutter.

[0052] Finally, it should be noted that the above description and illustrations show the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar cutting machine with safety protection for construction, characterized in that: The system includes a mounting base (1), with several support legs (2) fixedly installed on the bottom periphery of the mounting base (1), a first support plate (21) fixedly installed on one side of the top of the mounting base (1), a box (4) fixedly installed on the top of the first support plate (21), a cutting mechanism (5) provided on the box (4), a first protective mechanism (6) symmetrically arranged on both sides of the top of the mounting base (1), a second protective mechanism (7) provided on the top of the box (4), a first groove (101) and a second groove (102) respectively provided on the top of the mounting base (1), a clamping mechanism (8) symmetrically arranged in the first groove (101), and an auxiliary feeding mechanism (9) symmetrically fixedly installed on the side wall of the mounting base (1). The first protective mechanism (6) includes a forward and reverse drive motor (61), which is fixedly mounted on the side wall of the support plate via a first mounting plate (62). A first bevel gear (63) is fixedly connected to the output shaft of the forward and reverse drive motor (61). Two second support plates (64) are symmetrically fixedly mounted on the top of the mounting base (1). The two ends of the rotating shaft (65) rotate through the two second support plates (64) respectively and are connected to the first protective component (66). A second bevel gear (67) is fixedly connected to the middle of the first bevel gear (63), and the second bevel gear (67) meshes with the first bevel gear (63). Two first guide rails (68) are symmetrically fixedly installed on the top of the mounting base (1). Two baffles (69) are installed on one side of the two first guide rails (68) through mounting posts (610). Two baffles (611) are fixedly connected to the first protective component (66) respectively, and the bottom of the two baffles (611) is slidably connected to the first guide rail (68). The first protective component (66) includes a turntable (661), which is fixedly connected to one end of the rotating shaft (65). A slide rail (662) is fixedly installed on the top of the second support plate (64). A slide rod (663) is slidably connected in the slide rail (662). A transmission rod (664) is hinged to the bottom of the slide rod (663). A second slide groove (665) is embedded in the middle of the transmission rod (664). The second slide groove (665) is hinged to the turntable (661) away from the center by a hinge block (666). The hinge block (666) is slidably connected in the second slide groove (665). The lower end of the transmission rod (664) is hinged to the side wall of the second support plate (64). The slide rod (663) is fixedly connected to the inner wall of the second baffle (611) by a plurality of connecting blocks (667).

2. The steel bar cutting machine with safety protection for construction as described in claim 1, characterized in that: A plurality of support blocks (10) are provided at intervals in the first groove (101) and the second groove (102). A roller (11) is rotatably connected to the top of the plurality of support blocks (10). Two guide plates (13) are installed at the through hole (12) embedded in the second groove (102). The drawer (14) is fixedly installed at the bottom of the mounting base (1) corresponding to the through hole (12).

3. A steel bar cutting machine with safety protection for construction as described in claim 1, characterized in that: The cutting mechanism (5) includes a servo motor (51), which is fixedly installed on the side wall of the support plate. A drive pulley (52) is fixedly installed on the output shaft of the servo motor (51). A driven pulley (53) is rotatably connected to the side wall of the housing (4) through a first transmission shaft (54). The driven pulley (53) and the drive pulley (52) are connected by several first belts (55). The first transmission shaft (54) located inside the housing (4) is connected to a transmission assembly. The transmission assembly (56) is used to drive the crankshaft (57) connecting rod mechanism. A fixed bracket (59) is embedded on one side of the bottom of the housing (4). A cutting assembly (510) is hinged to one end of the connecting rod (58). The cutting assembly (510) is slidably connected inside the fixed bracket (59). A protective cover (511) is installed on the side wall of the housing (4).

4. A steel bar cutting machine with safety protection for construction as described in claim 3, characterized in that: The cutting assembly (510) includes a drive rod (5101), the upper end of which is hinged to one end of the connecting rod (58), the lower end of which is fixedly connected to a first cutter (5102), and the two sides of the drive rod (5101) are correspondingly fixedly connected to the sliding groove (5104) on the side wall of the fixed bracket (59) by a first spring (5103). The drive rod (5101) and the first cutter (5102) are slidably connected to the inner wall of the fixed bracket (59), and a second cutter (5105) is installed in the groove (102), and the second cutter (5105) is in contact with the first cutter (5102).

5. A steel bar cutting machine with safety protection for construction as described in claim 1, characterized in that: The second protective mechanism (7) includes a first protective plate (71) and a second protective plate (72). The second protective plate (72) is slidably connected inside the first protective plate (71), and a transparent viewing window (73) is embedded in the second protective plate (72). Two mounting blocks (711) are symmetrically fixedly installed on the top of the box (4). The two ends of the second drive shaft (712) rotate through the two mounting blocks (711) respectively and are fixedly connected to the first connecting rods (713). One end of the first connecting rod (713) is hinged to the top of the first protective plate (71), and one end of the two second connecting rods (74) is spaced apart from the first connecting rod (713) by a distance of respectively. The second connecting rod (74) is hinged to the mounting block (711), and the other end of the second connecting rod (74) is hinged to the top of the first protective plate (71). The winding wheel (75) is fixedly installed in the middle of the second transmission shaft (712), and the winding wheel (75) is connected to the top of the second protective plate (72) through the pull rope (76). The connecting shaft (77) is fixedly connected to one end of the second transmission shaft (712). The first pulley (78) is fixedly installed on the connecting shaft (77), and the second pulley (79) is fixedly installed on one side of the rotating shaft (65). The first pulley (78) is connected to the second pulley (79) through the second belt (710).

6. A steel bar cutting machine with safety protection for construction as described in claim 1, characterized in that: The clamping mechanism (8) includes a mounting bracket (81), one side of which is fixedly mounted on the inner wall of the groove (101). The fixed end of the cylinder (82) is fixedly mounted on the inner wall of one side of the mounting bracket (81). A connecting plate (83) is fixedly connected to the telescopic end of the cylinder (82). A first slider (84) and a second slider (85) are slidably connected to the bottom and top of the mounting bracket (81), respectively. The top of the first slider (84) is connected to the connecting plate (83). The first C-shaped rod (86) and the second C-shaped rod (87) are fixedly connected to the first slider (84) and the second slider (85) respectively. The other ends of the first C-shaped rod (86) and the second C-shaped rod (87) are fixedly installed with clamping plates (88). The middle part of the I-shaped bracket (89) is hinged to one side of the mounting frame (81), and the two sides of the I-shaped bracket (89) are respectively hinged to the middle parts of the first C-shaped rod (86) and the second C-shaped rod (87).

7. A steel bar cutting machine with safety protection for construction as described in claim 1, characterized in that: The auxiliary feeding mechanism (9) includes a second mounting plate (91), which is fixedly mounted on the side wall of the mounting base (1). An auxiliary box (92) is fixedly mounted on one side of the top of the second mounting plate (91), and a top plate (93) is fixedly mounted on the top of the second mounting plate (91). A drive motor (94) is fixedly connected to the bottom of the auxiliary box (92) through a mounting seat. The output shaft of the drive motor (94) is fixedly connected to a drive shaft (95). 5) One end of the drive shaft (97) is rotatably connected to the side wall of the auxiliary box (92) and a disc (96) is fixedly installed thereon. The drive gear (97) is fixedly installed on the drive shaft (95). The driven shaft (98) is rotatably connected to the side wall of the auxiliary box (92) at a distance from the drive shaft (95). A driven gear (99) is fixedly installed on one side of the driven shaft (98). The driven gear (99) meshes with the drive gear (97), and a disc (96) is fixedly connected to one end of the driven shaft (98).

8. A steel bar cutting machine with safety protection for construction as described in claim 7, characterized in that: It also includes a first mounting bracket (910) and a second mounting bracket (911). The first mounting bracket (910) and the second mounting bracket (911) are respectively hinged to the two disks (96) away from the center by hinge rods (912). The side wall of the first mounting bracket (910) is fixedly connected to a second guide rail (913). The side wall of the second mounting bracket (911) is fixedly connected to a third slider (914). The third slider (914) is slidably connected to the second guide rail (913). Fixing blocks (915) are slidably connected inside the first mounting bracket (910) and the second mounting bracket (911). The two sides of the bottom of the two fixing blocks (915) are fixedly connected to the inner walls of the first mounting bracket (910) and the second mounting bracket (911) by second springs (916). Anti-sliding blocks (917) are fixedly installed on the two fixing blocks (915).

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