A device for meeting various non-length cutting of screw threads

Abstract

The utility model discloses a kind of satisfy the device of various screw thread steel non-fixed size cutting, it is related to screw thread steel cutting technical field, including bottom plate, for the working load of firm device overall structure and bearing each component;After shearing roller way, for conveying and supporting the screw thread steel to be cut;Non-fixed size baffle mechanism, for limiting screw thread steel movement and determining cutting length;Non-fixed size baffle mechanism is fixedly arranged at the top of after shearing roller way;First non-fixed size clamping seat component, for cooperating non-fixed size baffle mechanism adjustment cutting size;Second non-fixed size clamping seat component, for with first non-fixed size clamping seat component common support fixed non-fixed size baffle mechanism;First non-fixed size clamping seat component and second non-fixed size clamping seat component are symmetrically arranged at the both sides of after shearing roller way;Cold shearing machine, for executing the shearing operation of screw thread steel.The utility model can be switched in short time quickly to realize screw thread steel non-fixed size cutting, greatly improve effective operation rate.

Description

Technical Field

[0001] This utility model relates to the field of threaded steel cutting technology, specifically to a device that can meet the requirements of various non-standard length cutting of threaded steel. Background Technology

[0002] As an indispensable basic material in construction engineering, the cutting process of rebar has a significant impact on product specifications and quality. With the rapid development of the construction industry and the diversification of market demands, the size specifications of rebar are also showing a trend of diversification, which poses new challenges to traditional rebar production lines. In bar production lines, after rolling and cooling, rebar needs to be cut to specific lengths to meet the specific needs of different engineering projects. Therefore, precise and reliable cutting equipment has become a key link in ensuring product quality and improving production efficiency.

[0003] In traditional bar production lines, the cold shearing zone typically employs a fixed-size baffle system for cutting rebar. These systems rely on pre-set length baffles (such as 9-meter and 12-meter baffles) to cut the rebar output from the cooling bed to a fixed size. These baffles are usually fixedly installed on roller conveyors near the cold shear machine. They determine the cutting length by obstructing the rebar's movement. When the head of the rebar hits the baffle, the cold shear machine cuts its tail end, thus obtaining the predetermined length. This method is stable and highly efficient when producing standard-sized rebar.

[0004] However, with the increasing diversification of market demand, customers' requirements for the length of rebar are no longer limited to traditional standard sizes. Existing standard-length fixed-length baffle cutting devices can no longer meet the growing demand for diversified orders in the market. When the production line needs to cut non-standard length rebar, the traditional fixed-length baffle system lacks flexibility and cannot quickly adjust the cutting length, resulting in low production efficiency or the need for additional secondary processing. In addition, frequent replacement or adjustment of fixed baffles is not only time-consuming and labor-intensive, but may also affect production continuity and product quality stability, ultimately reducing the company's market competitiveness and economic benefits. There is an urgent need for a non-standard-length cutting device that can flexibly adapt to the cutting size requirements of different specifications of rebar to improve the adaptability and efficiency of the production line.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a device that can meet the non-standard length cutting of various types of rebar, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] An apparatus for non-standard length cutting of various types of rebar includes:

[0009] The base plate is used to stabilize the overall structure of the device and bear the working load of each component.

[0010] The shearing roller conveyor is used to transport and support the threaded steel bars to be cut; the bottom end of the shearing roller conveyor is fixedly connected to the top center of the base plate.

[0011] The non-standard length baffle mechanism is used to restrict the movement of the rebar and determine the cutting length; the non-standard length baffle mechanism is fixedly installed at the top of the shearing roller conveyor;

[0012] The first non-standard length clamping assembly is used to cooperate with the non-standard length baffle mechanism to adjust the cutting size; the first non-standard length clamping assembly is set on one side of the shearing roller conveyor, and the bottom end of the first non-standard length clamping assembly is fixedly connected to the top end of the base plate.

[0013] The second non-standard length clamping assembly is used together with the first non-standard length clamping assembly to support and fix the non-standard length baffle mechanism; the second non-standard length clamping assembly has the same structure as the first non-standard length clamping assembly; the first non-standard length clamping assembly and the second non-standard length clamping assembly are symmetrically arranged on both sides of the shearing roller conveyor.

[0014] A cold shear machine is used to perform shearing operations on threaded steel bars.

[0015] Furthermore, in order to achieve stable conveying and positioning of rebar during the shearing process, the post-shearing roller conveyor includes a conveying platform located at the top center of the base plate. Guide baffles are provided on both sides of the top of the conveying platform, and the guide baffles are inclined to guide the movement direction of the rebar on the post-shearing roller conveyor. Several mounting slots are opened on the top of the conveying platform, and the mounting slots are linearly and equidistantly distributed. Conveying rollers are installed in the mounting slots, and the two ends of the conveying rollers are rotatably connected to the inner side wall of the conveying platform through bearings to support and convey the rebar.

[0016] Furthermore, in order to meet the non-standard length cutting requirements of various lengths of threaded steel, the first non-standard length clamping assembly includes a strip clamping unit set on one side of the top of the base plate. Several sets of convex standard lengths are set on both sides of the top of the strip clamping unit, and a mounting hole is opened on one side of the convex standard length. The convex standard lengths are set in pairs on both sides of the top of the strip clamping unit, and a space is formed between each pair of convex standard lengths for installing a stop block. Pins are provided in the mounting holes on both sides of the non-standard length baffle mechanism for fixing the stop block in the space. Several sets of convex standard lengths are distributed non-equidistantly along the length direction of the strip clamping unit.

[0017] Furthermore, in order to achieve fine-tuning of the cutting size of the rebar, the stop block includes a first stop plate set on one side of the pin shaft. The cross-section of the first stop plate is set as a convex structure, and the length of the top of the convex structure is equal to the length of the pin shaft. Several second stop plates are set at the bottom of the first stop plate, and a third stop plate is set at the bottom of the several second stop plates. Threaded holes are opened on both sides of the top of the first stop plate, the second stop plate and the third stop plate.

[0018] Furthermore, in order to achieve positioning and control of the rebar during the cutting process, the non-standard length baffle mechanism includes a U-shaped fixed frame set at the top of the shearing roller conveyor, a crossbeam set in the middle of the U-shaped fixed frame, and strip support blocks set on both sides of the bottom end of the U-shaped fixed frame; cylinder mounting seats are set on both sides of the middle of the U-shaped fixed frame, and cylinders are fixedly installed in the cylinder mounting seats; a connecting frame is set at the bottom end of the piston rod of the cylinder, and a baffle is set at the bottom end of the connecting frame, which is used to block the rebar from moving forward in the descending state and allow the rebar to pass through in the ascending state.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model has a scientific and novel structure. By installing non-standard length bracket components on both sides of the shearing roller conveyor and setting an adjustable non-standard length baffle mechanism above the roller conveyor, it breaks through the limitations of traditional standard length baffles and flexibly adapts to the diverse size order requirements of the market. This effectively improves the adaptability of the production line to market changes, broadens the production range, and enhances the flexibility and accuracy of rebar cutting. At the same time, the modular disassembly and assembly design enables rapid switching to non-standard length cutting of rebar in a short time, greatly improving the effective operating rate.

[0021] 2. By setting up the first non-standard length clamping assembly and the second non-standard length clamping assembly, the position of the non-standard length baffle mechanism can be flexibly adjusted. The non-equidistant convex standard length combination and the use of the stop block on the strip clamping assembly can accurately set the baffle position according to the length of the rebar required by the customer. In addition, the bottom of the stop block can be adjusted by adding or removing shims, which effectively adjusts the negative tolerance of the straight rebar, ensures the dimensional accuracy of the rebar during cold shearing, and significantly reduces the scrap rate caused by dimensional errors.

[0022] 3. By setting up a non-fixed-length baffle mechanism, accurate control of the rebar conveying process is achieved. The cylinder-controlled baffle can be raised and lowered by remote switch operation. In the lowering state, it blocks the rebar from moving forward to determine the cutting length. In the rising state, it allows the rebar to continue to be conveyed forward for subsequent processing. This automated control method improves operating efficiency and safety. At the same time, the design of the U-shaped fixing frame and the strip support block ensures the stability and reliability of the entire mechanism during operation, ensuring cutting accuracy and product quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a device according to an embodiment of the present utility model that satisfies various non-standard length cutting of threaded steel.

[0025] Figure 2 This is an application diagram of a device according to an embodiment of the present utility model that satisfies various non-standard length cutting of threaded steel.

[0026] Figure 3 This is a partial structural schematic diagram of a device according to an embodiment of the present utility model that satisfies various non-standard length cutting of threaded steel bars;

[0027] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0028] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 6 This is a schematic diagram of the structure of a stop block in a device for non-standard length cutting of various types of threaded steel according to an embodiment of the present utility model.

[0030] In the picture:

[0031] 1. Base plate; 2. Post-shearing roller conveyor; 201. Conveyor table; 202. Guide baffle; 203. Mounting groove; 204. Conveyor roller; 3. First non-standard length holder assembly; 301. Strip holder; 302. Convex standard length; 303. Mounting hole; 304. Pin; 305. Stop block; 3051. First stop plate; 3052. Second stop plate; 3053. Third stop plate; 3054. Threaded hole; 4. Second non-standard length holder assembly; 5. Non-standard length baffle mechanism; 501. U-shaped fixing frame; 502. Crossbeam; 503. Strip support block; 504. Cylinder mounting seat; 505. Cylinder; 506. Connecting frame; 507. Baffle; 6. Cold shear machine; 7. Threaded steel. Detailed Implementation

[0032] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0033] According to an embodiment of the present invention, a device is provided to meet the requirements of various non-standard length cutting of rebar.

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-6 As shown, the device for non-standard length cutting of various types of rebar according to an embodiment of the present invention includes:

[0035] Base plate 1 is used to stabilize the overall structure of the device and bear the working load of each component;

[0036] The shearing roller conveyor 2 is used to convey and support the threaded steel bar 7 to be cut; the bottom end of the shearing roller conveyor 2 is fixedly connected to the top center of the base plate 1.

[0037] The non-fixed-length baffle mechanism 5 is used to restrict the movement of the rebar 7 and determine the cutting length; the non-fixed-length baffle mechanism 5 is fixedly installed at the top of the shearing roller conveyor 2;

[0038] The first non-standard length clamping assembly 3 is used to cooperate with the non-standard length baffle mechanism 5 to adjust the cutting size; the first non-standard length clamping assembly 3 is set on one side of the post-cutting roller conveyor 2, and the bottom end of the first non-standard length clamping assembly 3 is fixedly connected to the top end of the base plate 1.

[0039] The second non-standard length clamping assembly 4 is used together with the first non-standard length clamping assembly 3 to support and fix the non-standard length baffle mechanism 5; the second non-standard length clamping assembly 4 has the same structure as the first non-standard length clamping assembly 3; the first non-standard length clamping assembly 3 and the second non-standard length clamping assembly 4 are symmetrically arranged on both sides of the shearing roller conveyor 2.

[0040] The cold shear machine 6 is used to perform the shearing operation of the rebar 7.

[0041] It should be noted that both cylinder 505 and cold shear machine 6 in this device are electrically connected to the PLC controller. Cylinder 505 is connected to the PLC's digital output module through a solenoid valve, while cold shear machine 6 is connected to the PLC's control signal port through a dedicated control circuit interface, forming a complete control link.

[0042] It should also be noted that the cold shear machine 6, as an existing technical device in this technical solution, is a commonly used cutting device in steel production lines, mainly used to cut continuously produced hot-rolled or cold-rolled rebar into the required length. The cold shear machine 6 mainly consists of a frame, a drive system, a shearing system, and a control system.

[0043] The working principle of the cold shear machine 6 is as follows: When the rebar 7 reaches the predetermined position, the control system issues a cutting command, the clutch engages, and the energy stored in the flywheel is transferred to the shearing mechanism, driving the upper shear blade to descend rapidly. This upper blade then forms a shearing force with the fixed lower shear blade, cutting the rebar 7. Because the cold shear machine 6 uses mechanical shearing rather than thermal cutting, it does not alter the material properties and geometric dimensions near the cut of the rebar 7, ensuring the flatness of the cut surface and the mechanical properties of the product. In this invention, the cold shear machine 6 is used in conjunction with the non-fixed-length baffle mechanism 5 to achieve precise length cutting of the rebar 7, meeting the diverse needs of different customers for product length.

[0044] In one embodiment, the shearing roller conveyor 2 includes a conveying platform 201 located at the top center of the base plate 1. Guide baffles 202 are provided on both sides of the top of the conveying platform 201. The guide baffles 202 are inclined and used to guide the movement direction of the rebar 7 on the shearing roller conveyor 2. The top of the conveying platform 201 is provided with a plurality of mounting grooves 203, which are linearly and equidistantly distributed. Conveying rollers 204 are provided in the mounting grooves 203. The two ends of the conveying rollers 204 are rotatably connected to the inner sidewall of the conveying platform 201 through bearings, and are used to support and convey the rebar 7, thereby realizing the smooth conveying and positioning of the rebar 7 during the shearing process.

[0045] The working principle of the post-shearing roller conveyor 2 is as follows: After the rebar 7 is output from the cooling bed, it is conveyed through the post-shearing roller conveyor 2. The rebar 7 is placed on the conveyor roller 204. Since the conveyor roller 204 is rotatably connected to the conveyor table 201 through bearings, the conveyor roller 204 can rotate freely as the rebar 7 moves, reducing conveying resistance and ensuring that the rebar 7 moves forward smoothly. At the same time, the guide baffles 202 on both sides of the conveyor table 201 are inclined, which can effectively prevent the rebar 7 from deviating during the conveying process, restricting the rebar 7 to the correct moving track, ensuring that the rebar 7 can accurately reach the predetermined cutting position, and guaranteeing cutting accuracy and product quality.

[0046] In one embodiment, for the first non-standard length bracket assembly 3 and the second non-standard length bracket assembly 4, the first non-standard length bracket assembly 3 includes a strip-shaped bracket 301 disposed on one side of the top of the base plate 1. Several sets of convex standard lengths 302 are disposed on both sides of the top of the strip-shaped bracket 301. One side of each convex standard length 302 has a mounting hole 303. The convex standard lengths 302 are arranged in pairs on both sides of the top of the strip-shaped bracket 301, with a space between each pair of convex standard lengths 302 for mounting a stop block 305. Pins 304 are provided in the mounting holes 303 on both sides of the non-standard length baffle mechanism 5 to fix the stop block 305 within the space. Several sets of convex standard lengths 302 extend along the length of the strip-shaped bracket 301. The distribution is not equidistant; in practical applications, the distribution spacing can be set according to the required length of the threaded steel 7. The stop block 305 includes a first stop plate 3051 set on one side of the pin 304. The cross-section of the first stop plate 3051 is set as a convex structure, and the length of the top of the convex structure is equal to the length of the pin 304. Several second stop plates 3052 are set at the bottom of the first stop plate 3051, and a third stop plate 3053 is set at the bottom of the several second stop plates 3052. Threaded holes 3054 are opened on both sides of the top of the first stop plate 3051, the second stop plate 3052 and the third stop plate 3053, so as to realize the non-standard length cutting requirements of various lengths of threaded steel 7.

[0047] The working principle of the first non-standard length clamping assembly 3 and the second non-standard length clamping assembly 4 is as follows: Based on the required length of the threaded steel bar 7 in the customer's order, the operator first determines the required cutting size. Then, on the first non-standard length clamping assembly 3 and the second non-standard length clamping assembly 4, a pair of convex standard lengths 302 are selected at the corresponding positions. The stop block 305 is placed in the space between two adjacent convex standard lengths 302, and the pin 304 is inserted through the mounting hole 303 to fix the stop block 305 between the convex standard lengths 302. Since the convex standard lengths 302 are not equidistantly distributed along the length direction of the strip clamping assembly 301, the position closest to the required cutting length can be selected for installation. Through its layered structure design, the stop block 305 can add or remove a second stop plate 3052 as a shim between the first stop plate 3051 and the third stop plate 3053 to achieve fine adjustment of the stop position, ensuring the accuracy of the cutting size and effectively adjusting the negative tolerance of the straight threaded steel bar 7.

[0048] In one embodiment, the non-standard length baffle mechanism 5 includes a U-shaped fixing frame 501 set at the top of the shearing roller conveyor 2. A crossbeam 502 is fixedly set in the middle of the U-shaped fixing frame 501, and strip support blocks 503 are fixedly set on both sides of the bottom end of the U-shaped fixing frame 501. Cylinder mounting seats 504 are set on both sides of the middle of the U-shaped fixing frame 501, and cylinders 505 are fixedly set inside the cylinder mounting seats 504. A connecting frame 506 is set at the bottom end of the piston rod of the cylinders 505, and a baffle 507 is set at the bottom end of the connecting frame 506. The baffle 507 is used to block the rebar 7 from moving forward in the descending state and allow the rebar 7 to pass through in the ascending state, thereby realizing the positioning and control of the rebar 7 in the cutting process.

[0049] The working principle of the non-standard length baffle mechanism 5 is as follows: During actual installation and use, the strip support block 503 at the bottom of the U-shaped fixing frame 501 is designed with a specific width, which is equal to the width of the strip groove formed between the paired convex standard lengths 302 on both sides of the top of the strip-shaped card holder 301. At the same time, the height of the strip support block 503 is less than the height of the bottom of the convex standard length 302. This design allows the non-standard length baffle mechanism 5 to fit precisely into the strip groove formed between the convex standard lengths 302 through its strip support block 503, and to slide and adjust its position along the length direction of the card holder within the strip groove. After finding the ideal position for the required cutting length, the operator installs the stop block 305 in the space between the convex standard lengths 302 on both sides of the strip support block 503 and fixes it with the pin 304. Meanwhile, the fixed position of the strip support block 503 can be finely adjusted by adding or removing the second stop plate 3052, which serves as a shim in the stop block 305, thereby firmly fixing the U-shaped fixing frame 501 in the required position and ensuring the stability of the non-fixed length baffle mechanism 5 during operation.

[0050] When the rebar 7 is conveyed from the shearing roller conveyor 2, the operator uses a remote control switch to activate cylinder 505, pushing the piston rod downwards. This causes the connecting frame 506 and baffle 507 to move downwards, positioning baffle 507 in a lowered state. The rebar 7 continues to advance until its front end touches baffle 507, at which point it stops. The cold shear machine 6 then cuts the tail of the rebar 7 to a specific length. After cutting, the operator again uses the remote control switch to activate cylinder 505, raising the piston rod and positioning baffle 507 in an upward state. The cut rebar 7 can then continue to advance for subsequent processes such as point support and packaging. This method allows for precise cutting of rebar 7 of different lengths, meeting the diverse size requirements of different customers. The entire mechanism is compact, easy to operate, and allows for quick adjustment and switching of different cutting sizes, significantly improving production efficiency and product quality.

[0051] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0052] In practical applications, the electrical control system of this device uses a field-programmable logic controller (PLC) as the core control unit to achieve automated control of the entire cutting process. This control system mainly includes a PLC controller, a remote operation panel, cylinder solenoid valves, cold shear machine control circuits, and various sensors, forming a complete electrical control network.

[0053] The specific implementation is as follows: The PLC controller is installed in the control cabinet and connected to the remote operation panel via an RS-485 communication bus. The remote operation panel is located at the operator's position and is equipped with a touch screen display, emergency stop button, start button, baffle lifting control button, and cutting start button, allowing operators to operate safely away from hazardous areas. The PLC's digital output port is connected to the solenoid valve of cylinder 505 via a relay. When the operator presses the baffle lowering button on the remote operation panel, the PLC outputs a corresponding control signal, energizing the solenoid valve and allowing air to flow into the lower chamber of cylinder 505, pushing the piston rod down and causing baffle 507 to fall. When the baffle raise button is pressed, the solenoid valve switches the air path, allowing air to flow into the upper chamber of cylinder 505, causing baffle 507 to rise.

[0054] Meanwhile, another set of digital output ports of the PLC is connected to the control circuit of the cold shear machine 6 to control the start and stop of the cold shear machine 6. In practical applications, to ensure the safety and accuracy of the cutting process, the system also installs multiple sensors at key locations: a proximity switch is installed at the position of the baffle 507 to detect the rising and falling state of the baffle 507; a photoelectric sensor is installed on the conveying path of the rebar 7 to detect the arrival status of the rebar 7; and a limit switch is installed at the cold shear machine 6 to monitor the completion status of the cutting action. The signals from these sensors are all connected to the digital input ports of the PLC to provide real-time feedback on the working status of each component.

[0055] The PLC controller's internal programming implements the following automatic control logic: When the operator issues a cutting command via the remote control panel, the system first checks whether all safety conditions are met, then controls cylinder 505 to lower baffle 507; when the photoelectric sensor detects that the threaded steel 7 has reached baffle 507 and stopped moving forward, the PLC issues a command to start the cold shear machine 6 for cutting; after cutting is completed, the limit switch signal is fed back to the PLC, which then controls cylinder 505 to raise baffle 507, allowing the cut threaded steel 7 to continue moving forward. The entire process can be monitored in real time via the touch screen on the remote control panel, displaying the working status of each component and cutting parameters.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for non-standard length cutting of various types of threaded steel bars, characterized in that, include: The base plate (1) is used to stabilize the overall structure of the device and bear the working load of each component; The shearing roller conveyor (2) is used to transport and support the threaded steel to be cut; the bottom end of the shearing roller conveyor (2) is fixedly connected to the top center of the base plate (1); A non-standard length baffle mechanism (5) is used to restrict the movement of the rebar and determine the cutting length; the non-standard length baffle mechanism (5) is fixedly installed at the top of the shearing roller conveyor (2); The first non-standard length bracket assembly (3) is used to cooperate with the non-standard length baffle mechanism (5) to adjust the cutting size; the first non-standard length bracket assembly (3) is set on one side of the shearing roller (2), and the bottom end of the first non-standard length bracket assembly (3) is fixedly connected to the top end of the base plate (1). The second non-standard length clamping assembly (4) is used together with the first non-standard length clamping assembly (3) to support and fix the non-standard length baffle mechanism (5); the second non-standard length clamping assembly (4) has the same structure as the first non-standard length clamping assembly (3); the first non-standard length clamping assembly (3) and the second non-standard length clamping assembly (4) are symmetrically arranged on both sides of the shearing roller conveyor (2); The cold shear machine (6) is used to perform the shearing operation of threaded steel.

2. The device for non-standard length cutting of various types of threaded steel bars according to claim 1, characterized in that, The shearing roller conveyor (2) includes a conveyor platform (201) located at the top center of the base plate (1). Guide baffles (202) are provided on both sides of the top of the conveyor platform (201). The guide baffles (202) are inclined and used to guide the movement direction of the rebar on the shearing roller conveyor (2).

3. The device for non-standard length cutting of various types of threaded steel bars according to claim 2, characterized in that, The top of the conveying platform (201) is provided with several mounting slots (203), which are linearly and equidistantly distributed. A conveying roller (204) is provided in the mounting slot (203). The two ends of the conveying roller (204) are rotatably connected to the inner side wall of the conveying platform (201) through bearings, and are used to support and convey threaded steel.

4. The device for non-standard length cutting of various types of threaded steel bars according to claim 1, characterized in that, The first non-standard length holder assembly (3) includes a strip holder (301) disposed on one side of the top of the base plate (1). Several sets of convex standard lengths (302) are disposed on both sides of the top of the strip holder (301). A mounting hole (303) is provided on one side of the convex standard length (302).

5. The device for non-standard length cutting of various types of threaded steel bars according to claim 4, characterized in that, The convex fixed rulers (302) are arranged in pairs on both sides of the top of the strip card holder (301), and a space is formed between each pair of convex fixed rulers (302) for installing the stop block (305); the mounting holes (303) on both sides of the non-fixed ruler baffle mechanism (5) are provided with pins (304) for fixing the stop block (305) in the space; the several sets of convex fixed rulers (302) are distributed non-equidistantly along the length direction of the strip card holder (301).

6. The device for non-standard length cutting of various types of threaded steel bars according to claim 5, characterized in that, The stop block (305) includes a first stop plate (3051) disposed on one side of the pin (304). The cross-section of the first stop plate (3051) is configured as a convex structure, and the length of the top end of the convex structure is equal to the length of the pin (304).

7. The device for non-standard length cutting of various types of threaded steel bars according to claim 6, characterized in that, The bottom end of the first stop plate (3051) is provided with a plurality of second stop plates (3052), and the bottom ends of the plurality of second stop plates (3052) are provided with a third stop plate (3053); threaded holes (3054) are provided on both sides of the top of the first stop plate (3051), the second stop plate (3052) and the third stop plate (3053).

8. The device for non-standard length cutting of various types of threaded steel bars according to claim 1, characterized in that, The non-standard length baffle mechanism (5) includes a U-shaped fixing frame (501) set at the top of the shearing roller (2), a crossbeam (502) is set in the middle of the U-shaped fixing frame (501), and strip support blocks (503) are set on both sides of the bottom end of the U-shaped fixing frame (501).

9. The device for non-standard length cutting of various types of threaded steel bars according to claim 8, characterized in that, The U-shaped fixing frame (501) is provided with cylinder mounting seats (504) on both sides of the middle part, and a cylinder (505) is fixedly installed in the cylinder mounting seat (504); the piston rod of the cylinder (505) is provided with a connecting frame (506) at the bottom end, and a baffle (507) is provided at the bottom end of the connecting frame (506) to block the rebar from moving forward in the descending state and allow the rebar to pass through in the ascending state.

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