Cutting equipment for steel bar machining

Abstract

The invention relates to the field of reinforcing steel bar cutting, and particularly discloses a cutting device for reinforcing steel bar machining, the cutting device comprises a mounting frame slidably connected to a rack, and the mounting frame can be stored in the rack; the rotating frame is rotationally connected to the mounting frame; the conveying roller (2) is rotationally connected to the rotating frame, and the upper top surface of the conveying roller (2) is flush with the bottom surface of the through groove of the rack; the toothed plate is fixedly connected in the rack; the first gear is rotationally connected into the mounting frame and can be meshed with the toothed plate; the synchronous belt is wound between the rotating shaft of the rotating frame and the rotating shaft of the gear 1. The rotating frame and the conveying rollers (2) are arranged to support the steel bars, so that the steel bars can move straightly, the situation that the steel bar cutting quality is affected due to position deviation of the steel bars is prevented, and an operator is prevented from being injured due to direct contact with the steel bars when the steel bar cutting device is used; and the rotating frame can be freely folded and unfolded, so that the rotating frame can be folded and unfolded according to use requirements, the rotating frame and the like can be protected, and meanwhile, the space arrangement of the device is optimized.

Description

Technical Field

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

[0002] The steel bar cutting equipment is a device that can cut steel bars with larger diameters. Workers use the steel bar cutting equipment to modify the length of the steel bars according to their usage requirements, which is free and convenient.

[0003] At present, the existing steel bar cutting equipment uses a motor to drive the eccentric shaft to rotate, and drives the hydraulic mechanism to control the moving blade to move toward the fixed blade. At this time, the steel bar placed between the moving blade and the fixed blade is cut by the two matching blades, so that the steel bar can be easily cut.

[0004] However, when using the existing steel bar cutting equipment, since the area on which the steel bar can be supported is limited, when cutting longer steel bars, the steel bar is easily tilted due to the fulcrum deviating from the center, which affects the cutting process. Therefore, the steel bar needs additional support when cutting; and the steel bar will generate a large force when being cut. Manually holding the steel bar is prone to injury, and the risk of use is high. Even if it is improperly operated, it may cause irreversible damage to the human body, and the safety is low. Summary of the invention

[0005] In view of the technical defects mentioned in the above background technology, the present invention proposes a cutting device for steel bar processing, which can ensure the normal cutting effect of steel bars while improving the safety of use. The technical solution is as follows: It includes: a frame; a pull handle rotatably connected to the frame; a reset torsion spring fixedly connected between the pull handle and the frame; a cutting knife group arranged on the frame, the cutting knife group consists of a fixed blade and a movable blade, a through slot is opened on the frame, the fixed blade and the movable blade are respectively arranged on both sides of the through slot of the frame, and the movable blade is connected to the frame and controlled to move by the frame; it also includes: a mounting frame slidably connected to the frame, the mounting frame can be stored in the frame; a rotating frame rotatably connected to the mounting frame; a conveying roller ② rotatably connected to the rotating frame, the upper top surface of the conveying roller ② is flush with the bottom surface of the through slot of the frame; a toothed plate fixedly connected to the frame; a gear ① rotatably connected to the mounting frame, the gear ① can mesh with the toothed plate; a synchronous belt wound between the rotating shaft of the rotating frame and the rotating shaft of the gear ①.

[0006] Optionally, it also includes: an insertion rod slidably connected to the installation frame, the insertion rod can be inserted into the gear ①; a tension spring ② fixedly connected between the insertion rod and the installation frame; an empty slot is opened on the frame, the insertion rod can slide into the empty slot, and the position and length of the empty slot correspond to the position and length of the tooth plate.

[0007] Optionally, it also includes: a gear ② fixedly connected to the rotating shaft of the rotating frame; a support frame rotatably connected to the installation frame, the support frame can be folded in the installation frame before rotation, and can contact the ground to support the installation frame after rotation; a gear ③ fixedly connected to the rotating shaft of the support frame, gear ③ is meshed with gear ②.

[0008] Optionally, it also includes: a mounting roller rotatably connected to the frame; a contact belt wound between two mounting rollers, one side of the contact belt is flush with the inner wall of the frame through slot; a detection head fixedly connected to the frame; a display panel fixedly connected to the front side wall of the frame, the display panel is electrically connected to the detection head; a mounting plate ② arranged on the frame; a push plate arranged on the mounting plate ②, the push plate and the contact belt are respectively arranged on both sides of the frame through slot.

[0009] Optionally, the mounting plate ② is slidably connected in the frame; it also includes: a tension spring ① fixedly connected between the mounting plate ② and the frame; a pull rod slidably connected to the frame, the front end of the pull rod is slidably connected to the pull handle, and the pull handle can control the movement of the pull rod when it rotates; a control block slidably connected in the frame, the control block is fixedly connected to the pull rod, and the control block contacts the inclined surface of the mounting plate ②.

[0010] Optionally, it also includes: a threaded rod fixedly connected to the push plate, the threaded rod is slidably connected to the mounting plate ②, so that the push plate is slidably connected to the mounting plate ②; and a nut threadedly connected to the threaded rod.

[0011] Optionally, it also includes: a mounting shaft ① slidably connected to the push plate; an auxiliary roller rotatably connected to the mounting shaft ①, the auxiliary roller being able to roll in contact with the steel bar; and a compression spring fixedly mounted between the mounting shaft ① and the push plate.

[0012] Optionally, the method further comprises: a conveying roller ① rotatably connected to the frame, wherein the upper surface of the conveying roller ① is flush with the bottom surface of the frame through groove.

[0013] Optionally, the contact belt is provided with grooves for increasing contact friction.

[0014] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects: First, the present invention supports the steel bars by setting a rotating frame and conveying rollers ②, so that the steel bars can move straightly, prevent the position deviation of the steel bars from affecting the cutting quality of the steel bars, and avoid the operator from being injured by direct contact with the steel bars during the present invention; the rotating frame is set to be able to be freely folded and unfolded, so that the rotating frame can be folded and unfolded according to the use requirements, and the rotating frame can be protected while optimizing the spatial setting of the present invention; by setting a support frame to support the rotating frame, etc., the conveying rollers ② can better maintain their supporting function, and the setting and use of the conveying rollers ② are optimized.

[0015] Second, the present invention uses a push plate to bring the steel bar close to the contact band and make it contact with the contact band, so that the steel bar and the contact band move synchronously, and then uses a detection head to detect the movement distance of the contact band and display the data in real time. In this way, by converting the movement data into the cutting length, the movement of the steel bar can be controlled according to data feedback, and the cutting length can be accurately determined. Therefore, compared with the prior art, the present invention can improve the accuracy of cutting data while being convenient to operate and simple to use, thereby improving the use effect of the present invention.

[0016] Thirdly, the position of the push plate is adjustable by setting the present invention so that the present invention can be applied to steel bars of different sizes; the auxiliary roller is used to make the steel bar contact with the push plate in a rolling manner, which is convenient for the movement and distance measurement of the steel bar, and the auxiliary roller is slidably set, so that the contact between the push plate and the steel bar has a certain deformation range. Such a setting can avoid the problem of the push plate getting stuck to the steel bar due to the non-standard size of the steel bar as much as possible. The above are all used to improve the scope of application of the present invention; the present invention sets a pull rod and a control block, so that when the steel bar is cut, the push plate can be driven to clamp and fix the steel bar, thereby improving the position stability during the cutting of the steel bar and improving the cutting accuracy of the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a partial cross-sectional schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the position structure of the pull handle in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the contact belt and the detection head in the present invention.

[0021] Figure 5 It is a schematic diagram of the position structure of the pull handle, the mounting plate ② and the push plate in the present invention.

[0022] Figure 6 This is a separation diagram of the connection structure of the pull handle, the mounting plate ② and the push plate in the present invention.

[0023] Figure 7 It is a schematic diagram of the position structure of the rotating frame and the conveying roller ② in the present invention.

[0024] Figure 8 It is a cross-sectional view of the connection structure of the rotating frame and the conveying roller ② after unfolding in the present invention.

[0025] Fig. 9 This is a structural separation diagram of the gear ① and the plunger in the present invention.

[0026] Fig.10 It is a schematic diagram of the connection structure of the rotating frame and the supporting frame after they are unfolded in the present invention.

[0027] The markings in the accompanying drawings are: 1-frame, 2-mounting plate ①, 3-handle, 4-cutting knife group, 5-reset torsion spring, 6-mounting roller, 7-contact belt, 8-detection head, 9-display panel, 10-mounting plate ②, 11-push plate, 12-guide groove ①, 13-guide groove ②, 14-pull rod, 15-control block, 16-contact surface, 17-tension spring ①, 18-slide, 19-threaded rod, 20-nut, 21-mounting shaft ①, 22-auxiliary roller, 23-compression spring, 24-conveyor roller ①, 25-mounting frame, 26-grip handle, 27-rotating frame, 28-conveyor roller ②, 29-tooth plate, 30-gear ①, 31-synchronous belt, 32-adjustment frame, 33-slot, 34-insertion rod, 35-tension spring ②, 36-empty slot, 37-gear ②, 38-support frame, 39-gear ③. DETAILED DESCRIPTION

[0028] 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.

[0029] Embodiment: A cutting device for steel bar processing, see Figure 1-Figure 3 , including: a frame 1; a mounting plate ①2 fixedly mounted on the left front side of the frame 1; a pull handle 3 rotatably mounted on the mounting plate ①2, the pull handle 3 is used to control the operation of the frame 1; a reset torsion spring 5 sleeved on the rotating shaft of the pull handle 3, the two ends of the reset torsion spring 5 are respectively fixedly mounted on the pull handle 3 and the mounting plate ①2, the pull handle 3 rotates, the reset torsion spring 5 is twisted, the pull handle 3 is released, the reset torsion spring 5 recovers its deformation and turns back to the pull handle 3; a cutting shear group 4 installed on the frame 1, the cutting shear group 4 consists of a fixed blade and a moving blade, a through slot for steel bars to pass through is provided on the right side of the frame 1, the moving blade is slidably mounted on the rear left side of the through slot of the frame 1, and the fixed blade is fixedly mounted on the rear right side of the through slot of the frame 1. When the steel bars pass through the through slot of the frame 1, the steel bars are located between the fixed blade and the moving blade. The pull handle 3 can be used to control the frame 1 to drive the moving blade to move left and right, and cooperate with the fixed blade to cut the steel bars.

[0030] See also Figure 7-Figure 10, further comprising: a mounting frame 25 slidably mounted in the frame 1, the mounting frame 25 being located directly below the through slot of the frame 1; a gripping handle 26 fixedly mounted on the mounting frame 25, the gripping handle 26 being used to control the sliding of the mounting frame 25; a rotating frame 27 rotatably mounted on the mounting frame 25, the rotating frame 27 being able to be folded in the mounting frame 25 before rotation, and being able to be unfolded and perpendicular to the mounting frame 25 after rotation, and being located above the mounting frame 25 at this time; a conveying roller ② 28 rotatably mounted on the rotating frame 27, and after the rotating frame 27 is unfolded, the upper top surface of the conveying roller ② 28 is aligned with the frame 1 The bottom surface of the through groove is flush, so as to support the front section of the steel bar; a tooth plate 29 is fixedly installed in the frame 1, and the tooth plate 29 is located below the mounting frame 25; a gear ①30 is rotatably installed in the mounting frame 25, and the gear ①30 can mesh with the tooth plate 29; a synchronous belt 31 is wound between the rotating shaft of the rotating frame 27 and the rotating shaft of the gear ①30, and is used to make the gear ①30 rotate synchronously with the rotating frame 27; a steering frame 32 is fixedly installed in the mounting frame 25, and the steering frame 32 is in rolling contact with the synchronous belt 31, and the steering frame 32 is used to adjust the position of the synchronous belt 31, The gear ①30 and the rotating frame 27 can be normally transmitted; two slots 33 are provided on the rotating shaft of the gear ①30, and the two slots 33 are arranged on the radial straight line of the rotating shaft of the gear ①30; the insertion rod 34 installed on the mounting frame 25 is slidable, and the insertion rod 34 can be inserted into the slot 33 of the gear ①30 to stop the rotation of the gear ①30; the tension spring ②35 is sleeved on the insertion rod 34, and the two ends of the tension spring ②35 are respectively fixedly installed on the insertion rod 34 and the mounting frame 25; the side walls of the frame 1 on both sides of the mounting frame 25 are provided with empty slots 3 6. The insertion rod 34 can slide into the empty slot 36, and the position and length of the empty slot 36 correspond to the position and length of the toothed plate 29; a gear ②37 fixedly mounted on the rotating shaft of the rotating frame 27; a support frame 38 rotatably mounted on the mounting frame 25, the support frame 38 can be folded in the mounting frame 25 before rotation, and can be unfolded and perpendicular to the mounting frame 25 after rotation, at which time it is located below the mounting frame 25 and in contact with the ground, and can support the mounting frame 25; a gear ③39 fixedly mounted on the rotating shaft of the support frame 38, the gear ③39 meshes with the gear ②37.

[0031] When using the cutting device, the steel bar is passed through the through slot of the frame 1, so that the rear end of the steel bar is flush with the cutting surface of the cutting knife group 4, and the pull handle 3 is pulled to control the cutting knife group 4 to cut the steel bar; because in general, the length of the steel bar will be much longer than the length of the through slot of the frame 1, so before using the cutting device, the rotating frame 27 can be used to cooperate with the conveying roller ②28 to support the front end of the steel bar to prevent the front end of the steel bar from moving downward and tilting due to the gravity of the steel bar, so that the user can better control the movement of the steel bar and accurately determine the length of the steel bar cutting; when using, only the gripping handle 26 needs to be used to move the mounting frame 25 forward, and the mounting frame 25 is relatively The forward movement of the frame 1 drives the gear ①30 to move forward. When the gear ①30 moves the position of the tooth plate 29, the rotating frame 27 has been moved out of the frame 1. The rear mounting frame 25 continues to move forward, which will cause the gear ①30 to be meshed and rotated by the tooth plate 29. The rotating frame 27 is driven by the synchronous belt 31 to rotate until it is perpendicular to the mounting frame 25. At this time, the gear ①30 is disengaged from the tooth plate 29, and the rotating frame 27 no longer rotates. The conveying roller ②28 can support the front section of the steel bar. When it is not needed, the mounting frame 25 can be pushed back into the frame 1, and the rotating frame 27 is simultaneously retracted into the mounting frame 25; when the mounting frame 25 is retracted in the frame 1, the insertion rod 34 is driven by the frame 1. The gear ①30 is pushed out and slides in the direction of the rotating shaft of the gear ①30 and is inserted into the slot 33. The tension spring ②35 is stretched, and the gear ①30 is fixed in position and cannot rotate. In the process of moving the mounting frame 25, when the mounting frame 25 drives the insertion rod 34 to move to the position of the empty slot 36, the insertion rod 34 is not supported by the frame 1, and the tension spring ②35 can restore the insertion rod 34 to slide in the direction of the empty slot 36, so that the insertion rod 34 is disengaged from the slot 33, releasing the fixation of the gear ①30. Therefore, the mounting frame 25 continues to move to enable the gear ①30 to move and unfold the rotating frame 27. When the rotating frame 27 is fully unfolded, the insertion rod 34 also leaves the empty slot. The groove 36 is pushed out by the frame 1 again and inserted into the slot 33, and the position of the gear ①30 is fixed again. In this way, when the conveying roller ②28 supports the steel bar, the rotating frame 27 will not rotate at will and cause unstable support for the steel bar; in the process of pulling out the installation frame 25 and unfolding the rotating frame 27, the rotating frame 27 rotates, and the support frame 38 is unfolded through the meshing transmission of the gear ②37 and the gear ③39. The support frame 38 can support the installation frame 25, so that the installation frame 25 can be kept horizontal, and the conveying roller ②28 is not easily affected by the gravity of the steel bar and the position is offset, but can maintain horizontal support for the steel bar, thereby ensuring the support effect for the steel bar.

[0032] See also Figure 4-Figure 6, two mounting rollers 6 are rotatably mounted in the frame 1, and the two mounting rollers 6 are located on the right side of the through slot of the frame 1; a contact belt 7 is wound between the two mounting rollers 6, and the left side of the contact belt 7 is flush with the right inner wall of the through slot of the frame 1, and the contact belt 7 is provided with grooves for increasing the contact friction; a detection head 8 is fixedly mounted in the frame 1, and the detection head 8 is opposite to the contact belt 7, and is used to detect the moving distance of the contact belt 7; a display panel 9 is fixedly mounted on the front side wall of the frame 1, and the display panel 9 is electrically connected to the detection head 8 to display the data detected by the detection head 8; a mounting plate ②10 is arranged on the frame 1, and the mounting plate ②10 is located on the left side of the through slot of the frame 1; a push plate 11 is arranged on the mounting plate ②10, and the push plate 11 is used to bring the steel bar close to the contact belt 7; a conveying roller ①24 is rotatably mounted on the frame 1, and the upper top surface of the conveying roller ①24 is flush with the bottom surface of the through slot of the frame 1.

[0033] When the steel bar is passed through the through slot of the frame 1 using the cutting device, the push plate 11 pushes the steel bar against the contact belt 7 and makes it close to the contact belt 7, and clears the display data of the display panel 9, moves the steel bar backward, and the conveying roller ①24 rotates to assist the movement of the steel bar. During this process, the friction between the steel bar and the contact belt 7 causes the contact belt 7 to be rotated by the movement of the steel bar, and the detection head 8 detects the movement distance of the contact belt 7. Therefore, the user can control the moving length of the steel bar according to the real-time movement data of the steel bar displayed on the display panel 9. After the movement is completed, the length of the steel bar exceeding the cutting knife group 4 is the length that people need to cut. Therefore, the cutting device can be used to cut the steel bar at this time.

[0034] See also Figure 5-Figure 6, the mounting plate ②10 is slidably installed in the frame 1; it also includes: a guide groove ①12 is opened on the mounting plate ①2, a guide groove ②13 is opened on the handle 3, the guide groove ①12 is perpendicular to the guide groove ②13, a pull rod 14 is slidably installed on the frame 1, and the front end of the pull rod 14 is slidably set in the guide groove ①12 and the guide groove ②13 at the same time, the guide groove ①12 and the guide groove ②13 decompose the displacement of the pull rod 14 when it rotates, so that when the handle 3 rotates, only the pull rod 14 is controlled to move forward and backward; a control block 15 is slidably installed in the frame 1, and the control block 15 is fixedly installed with the pull rod 14; a contact surface 16 is set on the outer surface of the control block 15, and the control block 15 contacts the mounting plate ②10 through the contact surface 16, so that the control block 15 moves and pushes the mounting plate ②10 to move; a tension spring ①17 fixedly installed between the mounting plate ②10 and the frame 1, the pull The extension spring ①17 is used to reset the mounting plate ②10 moved by the controlled block 15; a slide groove 18 is provided on the mounting plate ②10, and a threaded rod 19 is fixedly mounted on the push plate 11, and the threaded rod 19 is slidably mounted in the slide groove 18, so that the push plate 11 and the mounting plate ②10 are slidably mounted; a nut 20 is threadedly mounted on the threaded rod 19, and the nut 20 rotates to change the spacing between the nut 20 and the push plate 11, thereby fixing the position between the push plate 11 and the mounting plate ②10, or releasing the fixation between the two; a mounting shaft ①21 is slidably mounted on the right side surface of the push plate 11; an auxiliary roller 22 is rotatably mounted on the mounting shaft ①21, and the auxiliary roller 22 is in rolling contact with the steel bar; a compression spring 23 is sleeved on the sliding shaft of the mounting shaft ①21, and the two ends of the compression spring 23 are respectively fixedly mounted on the mounting shaft ①21 and the push plate 11.

[0035] The nut 20 is turned to loosen the fixation between the mounting plate ②10 and the push plate 11. At this time, the distance between the push plate 11 and the contact belt 7 can be changed according to the diameter of the steel bar. The distance should allow the steel bar to be close to the contact belt 7 by the push plate 11, while not being stuck between the push plate 11 and the contact belt 7 and unable to move back and forth normally. After the adjustment is completed, the nut 20 is reversed to fix the push plate 11 on the mounting plate ②10; the sliding auxiliary roller 22 allows the contact between the push plate 11 and the steel bar to have a certain deformation range, because the diameters of some steel bars at different positions may have certain deviations, such a setting can prevent the steel bar from being stuck. At the same time, the auxiliary roller 22 allows the push plate 11 to roll in contact with the steel bar, allowing the user to better The pull handle 3 is pulled to control the cutting knife group 4 to cut the steel bar. At the same time, the pull handle 3 is restricted by the guide groove ①12 and the guide groove ②13, driving the pull rod 14 to move forward, and the pull rod 14 drives the control block 15 to move forward, and pushes the mounting plate ②10 to move to the right through the redirection of the contact surface 16. The tension spring ①17 is stretched, so when the steel bar is cut, the push plate 11 will further squeeze the steel bar to the right, thereby clamping and fixing the steel bar, so that the steel bar can be cut in a more stable position, release the pull handle 3, reset the torsion spring 5 to reset the pull handle 3 and the pull rod 14, and at the same time, the tension spring ①17 resets the mounting plate ②10, and the mounting plate ②10 and the pull rod 14 jointly push the control block 15 to reset.

[0036] With the above-mentioned ideal embodiments of the present invention as inspiration, through the above-mentioned description content, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​the present invention.

Claims

1. A cutting device for steel bar processing, comprising: Rack(1); A pull handle (3) rotatably connected to the frame (1) for controlling the operation of the frame (1); a return torsion spring (5) fixedly connected between the pull handle (3) and the frame (1); a cutting blade assembly (4) arranged on the frame (1), the cutting blade assembly (4) comprising a fixed blade and a movable blade, a through slot for allowing a steel bar to pass through is provided on the frame (1), the fixed blade and the movable blade are respectively arranged on both sides of the through slot of the frame (1), the movable blade is connected to the frame (1) and is controlled to move by the frame (1) so as to cooperate with the fixed blade to cut the steel bar; the invention is characterized in that it also includes: a mounting frame (25) slidably connected to the frame (1), the mounting frame (25) being retractable in the frame (1); a rotatably connected to the mounting frame (25) The invention relates to a rotating frame (27), wherein the rotating frame (27) can be folded in the installation frame (25) before rotation and can be unfolded to support the steel bars after rotation; a conveying roller ② (28) rotatably connected to the rotating frame (27), wherein the upper top surface of the conveying roller ② (28) is flush with the bottom surface of the through groove of the frame (1), and the rotating frame (27) and the conveying roller ② (28) are used to support the steel bars; a toothed plate (29) fixedly connected to the frame (1); a gear ① (30) rotatably connected to the installation frame (25), wherein the gear ① (30) can mesh with the geared plate (29); and a synchronous belt (31) wound between the rotating shaft of the rotating frame (27) and the rotating shaft of the gear ① (30), so that the gear ① (30) and the rotating frame (27) rotate synchronously.

2. A cutting device for steel bar processing according to claim 1, characterized in that: Also includes: A plug rod (34) slidably connected to the mounting frame (25), the plug rod (34) can be inserted into the gear ① (30) to stop the gear ① (30) from rotating; a tension spring ② (35) fixedly connected between the plug rod (34) and the mounting frame (25); a slot (36) is provided on the frame (1), the plug rod (34) can be slidably inserted into the slot (36), and the position and length of the slot (36) correspond to the position and length of the toothed plate (29).

3. A cutting device for steel bar processing according to claim 2, characterized in that: Also includes: A gear ② (37) is fixedly connected to the rotating shaft of the rotating frame (27); a support frame (38) is rotatably connected to the mounting frame (25), the support frame (38) can be folded into the mounting frame (25) before rotation, and the support frame (38) can contact the ground to support the mounting frame (25) after rotation; a gear ③ (39) is fixedly connected to the rotating shaft of the support frame (38), and the gear ③ (39) is meshed with the gear ② (37).

4. A cutting device for steel bar processing according to claim 1, characterized in that: Also includes: A mounting roller (6) rotatably connected to the frame (1); a contact belt (7) wound between the two mounting rollers (6), one side of the contact belt (7) being flush with the inner side wall of the through slot of the frame (1); a detection head (8) fixedly connected to the frame (1) for detecting the moving distance of the contact belt (7); a display panel (9) fixedly connected to the front side wall of the frame (1), the display panel (9) being electrically connected to the detection head (8) to display data detected by the detection head (8); a mounting plate ② (10) arranged on the frame (1); a push plate (11) arranged on the mounting plate ② (10), the push plate (11) and the contact belt (7) being respectively arranged on both sides of the through slot of the frame (1), the push plate (11) being used to bring the steel bar close to the contact belt (7).

5. A cutting device for steel bar processing according to claim 4, characterized in that: The mounting plate ② (10) is slidably connected in the frame (1); it also includes: a tension spring ① (17) fixedly connected between the mounting plate ② (10) and the frame (1); a pull rod (14) slidably connected to the frame (1), the front end of the pull rod (14) is slidably connected to the pull handle (3), and the pull handle (3) can control the movement of the pull rod (14) when it rotates; a control block (15) slidably connected in the frame (1), the control block (15) is fixedly connected to the pull rod (14), and the control block (15) is in contact with the inclined surface of the mounting plate ② (10).

6. A cutting device for steel bar processing according to claim 5, characterized in that: Also includes: A threaded rod (19) fixedly connected to the push plate (11), the threaded rod (19) being slidably connected to the mounting plate ② (10), so that the push plate (11) is slidably connected to the mounting plate ② (10); A nut (20) is threaded onto the threaded rod (19).

7. A cutting device for steel bar processing according to claim 6, characterized in that: Also includes: A mounting shaft ① (21) is slidably connected to the push plate (11); an auxiliary roller (22) is rotatably connected to the mounting shaft ① (21), and the auxiliary roller (22) can be in rolling contact with the steel bar; and a compression spring (23) is fixedly installed between the mounting shaft ① (21) and the push plate (11).

8. A cutting device for steel bar processing according to claim 7, characterized in that: Also includes: The conveying roller ① (24) connected to the frame (1) is rotated so that the upper surface of the conveying roller ① (24) is flush with the bottom surface of the through groove of the frame (1).

9. A cutting device for steel bar processing according to claim 4, characterized in that: The contact belt (7) is provided with grooves for increasing contact friction.

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