Construction steel bar cutting-off machining device

By introducing a motor drive system and positioning device into the building rebar cutting and processing device, the cutting and positioning of the rebar are automatically controlled, solving the problems of unstable cutting quality and misalignment caused by manual fixing, and realizing efficient and safe rebar cutting and processing.

CN224181961UActive Publication Date: 2026-05-01JINAN DINGGANG MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN DINGGANG MATERIALS CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing steel bar cutting and processing equipment requires workers to manually fix the steel bars, which makes it difficult to guarantee cutting quality and causes steel bar displacement problems, resulting in high labor intensity and low efficiency.

Method used

The height of the lifting platform and the cutting tool is controlled by a first motor, a first transmission wheel and a first transmission track. The steel bars are automatically positioned by a fixed positioning block and a rotating positioning block. The cutting position is adjusted by a second motor and a second transmission wheel. Stainless steel limit blocks and slide rails are used to reduce friction. A protective shell is set to protect the cutting tool.

Benefits of technology

It has enabled automated cutting of building steel bars, reduced labor costs, solved the problem of steel bar misalignment, improved cutting quality and efficiency, extended the service life of the device, and reduced safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224181961U_ABST
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Abstract

The utility model belongs to the technical field of steel bar cutting machining, and particularly relates to a building steel bar cutting machining device which comprises a base, and a supporting cylinder is arranged at the top of the base. The interiors of the two supporting cylinders are rotationally connected with first threaded rods. The end part of the first threaded rod is fixedly connected with a first transmission wheel; a first motor is arranged at the top of one of the first transmission wheels; the side walls of the two first threaded rods are in threaded connection with a lifting table. A cutting tool is fixedly connected to the side wall of the lifting table. The tops of the two supporting cylinders are fixedly connected with protection blocks. The first motor, the first transmission wheel and the first transmission crawler belt are arranged, so that the two first threaded rods move synchronously, then the height of the lifting table and the height of the cutting tool are controlled, the stability and convenience of the steel bar cutting machining device are improved, automatic steel bar cutting operation can be achieved easily, and labor cost is saved.
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Description

A steel bar cutting and processing device for construction Technical Field

[0001] This utility model belongs to the field of steel bar cutting and processing technology, specifically a building steel bar cutting and processing device. Background Technology

[0002] Reinforcing bars refer to steel used in reinforced concrete and prestressed reinforced concrete. Their cross-section is circular, and sometimes square with rounded corners. They include plain round bars, ribbed bars, and twisted bars. Reinforcing bars are usually classified according to chemical composition, production process, rolling shape, supply form, diameter, and use in the structure.

[0003] Existing steel bar cutting and processing equipment often requires workers to manually place the steel bars at the bottom of the cutting device during operation. Workers still need to manually fix the steel bars during operation to prevent them from shifting during cutting. However, even so, the cutting quality of the steel bars is still difficult to guarantee.

[0004] Therefore, this utility model provides a device for cutting and processing reinforcing steel bars in construction. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A rebar cutting and processing device of this utility model includes a base, a support cylinder on the top of the base, and two support cylinders arranged correspondingly; a first threaded rod is rotatably connected inside the two support cylinders; a first transmission wheel is fixedly connected to the end of the first threaded rod, and a first transmission track is arranged between the two first transmission wheels; a first motor is installed on the top of one of the first transmission wheels; a lifting platform is threadedly connected to the side walls of the two first threaded rods, and the lifting platform is configured to correspond to the size of the support cylinder; a cutting tool is fixedly connected to the side wall of the lifting platform; a protective block is fixedly connected to the top of the two support cylinders, and the bottom of the first motor is fixedly connected to the top of the protective block; this step, by setting the first motor, the first transmission wheel, and the first transmission track, enables the two first threaded rods to move synchronously, thereby controlling the height of the lifting platform and the cutting tool, enhancing the stability and convenience of the rebar cutting and processing device, facilitating automated rebar cutting operations, and saving labor costs.

[0007] Preferably, a placement platform is fixedly connected to the top of the base; a fixed positioning block is fixedly connected to the top of the placement platform, and multiple fixed positioning blocks are arranged in a linear array; a rotating rod is rotatably connected to the inner side wall of the placement platform; a rotating positioning block is fixedly connected to the side wall of the rotating rod, and multiple rotating positioning blocks are arranged to correspond to the size and position of the fixed positioning block; a movable groove is opened on the side wall of the placement platform, and multiple movable grooves are arranged to correspond to the position of the rotating positioning block; a second motor is fixedly connected inside the placement platform; a second transmission wheel is fixedly connected to the output end of the second motor, and a second transmission wheel is fixedly connected to the end of the rotating rod; and a second transmission track is arranged between the two lifting platforms. This step, by setting fixed positioning blocks and rotating positioning blocks to position the reinforcing bars, and by setting the second motor, second transmission wheel, and second transmission track to make the rotating positioning blocks movable, provides convenience for workers to place the reinforcing bars, helps to solve the problem of displacement of reinforcing bars during the cutting process, improves work efficiency, and reduces the labor intensity of workers.

[0008] Preferably, a limiting block is fixed to the bottom of each of the two support cylinders; a slide rail is fixed to the top of the base, and the two slide rails are respectively set to correspond to the size and position of the limiting block; a third motor is fixed to the side wall of one of the slide rails, and a second threaded rod is fixed to the output end of the third motor; a limiting rod is fixed to the inside of the other slide rail. This step, by setting the limiting block, the third motor, the second threaded rod, and the limiting rod, enables the horizontal position of the cutting tool to be adjustable, enhances the flexibility and applicability of the device, helps to solve the multi-segment cutting needs of building steel bars, and helps to improve the efficiency of steel bar cutting.

[0009] Preferably, a fixing block is fixedly connected to the bottom of the limiting block; a roller is rotatably connected to the bottom of the fixing block, and multiple rollers are arranged in a corresponding manner; this step reduces the friction between components by setting the fixing block and the roller, which helps to alleviate the wear of the device components, extend the service life of the device, and reduce the maintenance requirements of the device.

[0010] Preferably, a fixing protrusion is fixedly connected to the top of the placement platform, and multiple fixing protrusions are arranged in a corresponding manner; a fixing rod is fixedly connected between the corresponding fixing protrusions, and a rotating cylinder is rotatably connected to the side wall of the fixing rod; this step reduces the friction between the reinforcing bar and the device components by setting the rotating cylinder, avoids excessive wear of the reinforcing bar on the surface of the device, helps to protect the integrity of the device component structure, and extends the service life of the device.

[0011] Preferably, a protective shell is fixed to the side wall of the lifting platform, and the protective shell is set to correspond to the position and size of the cutting tool. This step, by setting the protective shell, provides convenience for workers to cut steel bars, avoids the large-scale spread of grinding sparks, and prevents the cutting tool components from falling off or flying out, which helps to reduce safety hazards.

[0012] Preferably, the limiting block and the slide rail are made of stainless steel. This step, by using stainless steel for the limiting block and the slide rail, keeps the surfaces of both smooth and maintains a low coefficient of friction between them, which helps to prevent them from getting stuck and reduces the maintenance requirements of the device.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The steel bar cutting and processing device of this utility model enables two first threaded rods to move synchronously by setting a first motor, a first transmission wheel, and a first transmission track, thereby controlling the height of the lifting platform and the cutting tool, enhancing the stability and convenience of the steel bar cutting and processing device, facilitating automated steel bar cutting operations, and saving labor costs.

[0015] 2. The steel bar cutting and processing device of this utility model positions the steel bars by setting a fixed positioning block and a rotating positioning block, and makes the rotating positioning block movable by setting a second motor, a second transmission wheel and a second transmission track, which provides convenience for workers to place the steel bars, helps to solve the problem of displacement of steel bars during the cutting process, improves work efficiency and reduces the labor intensity of workers. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is a perspective view of this utility model;

[0018] Figure 2 is a schematic diagram of the support cylinder in this utility model;

[0019] Figure 3 is a schematic diagram of the placement platform in this utility model;

[0020] Figure 4 is a schematic diagram of the slide rail structure in this utility model.

[0021] In the diagram: 1. Base; 11. Support cylinder; 12. First threaded rod; 13. First transmission wheel; 14. First transmission track; 15. First motor; 16. Lifting platform; 17. Cutting tool; 18. Protective block; 2. Placement platform; 21. Fixed positioning block; 22. Rotating rod; 23. Rotating positioning block; 24. Movable groove; 25. Second motor; 26. Second transmission wheel; 27. Second transmission track; 3. Limiting block; 31. Slide rail; 32. Third motor; 33. Second threaded rod; 34. Limiting rod; 4. Fixed block; 41. Roller; 5. Fixed protrusion; 51. Rotating cylinder; 6. Protective shell. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] As shown in Figures 1 and 2, a steel bar cutting and processing device according to an embodiment of the present invention includes a base 1, a support cylinder 11 on the top of the base 1, and two support cylinders 11 are arranged correspondingly; a first threaded rod 12 is rotatably connected inside the two support cylinders 11; a first transmission wheel 13 is fixedly connected to the end of the first threaded rod 12, and a first transmission track 14 is arranged between the two first transmission wheels 13; a first motor 15 is installed on the top of one of the first transmission wheels 13; a lifting platform 16 is threadedly connected to the side wall of the two first threaded rods 12, and the lifting platform 16 is set to correspond to the size of the support cylinder 11; a cutting tool 17 is fixedly connected to the side wall of the lifting platform 16; a protective block 18 is fixedly connected to the top of the two support cylinders 11, and the bottom of the first motor 15 is fixedly connected to the top of the protective block 18; during operation, the operator can control the height position of the cutting tool 17 by driving the first motor 15, thereby completing the cutting and processing of the steel bar. During the process, whenever the first motor fixed to the top of the protective block 18 is activated, the cutting tool 17 is activated. When the machine 15 is driven, the first transmission wheel 13, which is fixedly connected to the output end of the first motor 15, will rotate. At this time, the first transmission track 14, which is set between the two first transmission wheels 13, will cause the two first transmission wheels 13 to move synchronously. Since the two first threaded rods 12 are respectively threadedly connected to the lifting platform 16, the lifting platform 16 will move vertically along with the drive of the first motor 15 and the rotation of the two first threaded rods 12, thereby cutting the steel bars placed at its bottom. The protective block 18 serves to connect the two support cylinders 11 and protect the first transmission track 14, while the base 1 provides overall support. This step, by setting the first motor 15, the first transmission wheel 13, and the first transmission track 14 to make the two first threaded rods 12 move synchronously, thereby controlling the height of the lifting platform 16 and the cutting tool 17, enhancing the stability and convenience of the steel bar cutting processing device, facilitating automated steel bar cutting operations, and saving labor costs.

[0025] As shown in Figures 1 and 3, a placement platform 2 is fixedly connected to the top of the base 1; a fixed positioning block 21 is fixedly connected to the top of the placement platform 2, and multiple fixed positioning blocks 21 are arranged in a linear array; a rotating rod 22 is rotatably connected to the inner side wall of the placement platform 2; a rotating positioning block 23 is fixedly connected to the side wall of the rotating rod 22, and multiple rotating positioning blocks 23 are arranged to correspond to the size and position of the fixed positioning block 21; a movable groove 24 is opened on the side wall of the placement platform 2, and multiple movable grooves 24 are arranged to correspond to the position of the rotating positioning block 23; a second motor 25 is fixedly connected inside the placement platform 2; a second transmission wheel 26 is fixedly connected to the output end of the second motor 25, and a second transmission wheel 26 is fixedly connected to the end of the rotating rod 22; a second transmission track 27 is arranged between the two lifting platforms 16; during operation, the operator can position the steel bar to be cut on the top of the placement platform 2 by driving the second motor 25, thereby preventing the steel bar from shifting during the cutting process. When the second motor 25 inside platform 2 is driven, the power of the second motor 25 can be transmitted to the rotating rod 22 through the second transmission wheel 26 and the second transmission track 27. At this time, the rotating rod 22, which is fixed with multiple rotating positioning blocks 23, will rotate inside the platform 2. As the rotating rod 22 rotates, the multiple rotating positioning blocks 23 will perform circular motion in multiple movable slots 24. Subsequently, as the rotating positioning blocks 23 move, the multiple rotating positioning blocks 23 will contact the steel bar placed on the top of the platform 2, and finally push the steel bar towards the fixed positioning block 21 and clamp it. This step, by setting the fixed positioning block 21 and the rotating positioning block 23 to position the steel bar, and by setting the second motor 25, the second transmission wheel 26, and the second transmission track 27 to make the rotating positioning block 23 movable, provides convenience for the workers to place the steel bar, helps to solve the problem of displacement of the steel bar during the cutting process, improves work efficiency, and reduces the labor intensity of the workers.

[0026] As shown in Figures 1, 2, and 4, the bottoms of the two support cylinders 11 are fixedly connected to limit blocks 3; the top of the base 1 is fixedly connected to a slide rail 31, and the two slide rails 31 are respectively set to correspond to the size and position of the limit blocks 3; a third motor 32 is fixedly connected to the side wall of one slide rail 31, and a second threaded rod 33 is fixedly connected to the output end of the third motor 32; a limit rod 34 is fixedly connected inside the other slide rail 31; during operation, the second threaded rod 33 is threadedly connected to the corresponding limit block 3, and the limit rod 34 is slidably connected to the corresponding limit block 3. The operator can drive the third motor 32 to... In this manner, the horizontal position of the two support cylinders 11 and the cutting tool 17 set between the two support cylinders 11 is adjusted. Whenever the placement platform 2 is driven, the limiting block 3, the second threaded rod 33, and the limiting rod 34 can cooperate with each other to make the two support cylinders 11 slide synchronously on the top of their respective slide rails 31. This step, by setting the limiting block 3, the third motor 32, the second threaded rod 33, and the limiting rod 34, makes the horizontal position of the cutting tool 17 adjustable, which enhances the flexibility and applicability of the device, is conducive to solving the multi-segment cutting needs of building steel bars, and is conducive to improving the cutting efficiency of steel bars.

[0027] As shown in Figure 2, a fixing block 4 is fixedly connected to the bottom of the limiting block 3; a roller 41 is rotatably connected to the bottom of the fixing block 4, and multiple rollers 41 are arranged in a corresponding manner; during operation, whenever the limiting block 3 moves under the action of the third motor 32, the multiple rollers 41 located at the bottom of the limiting block 3 and rotatably connected to the bottom of the fixing block 4 can rotate by themselves, converting part of the sliding friction between the components into rolling friction; this step reduces the friction between the components by setting the fixing block 4 and the rollers 41, which helps to alleviate the wear of the device components, extend the service life of the device, and reduce the maintenance requirements of the device.

[0028] As shown in Figure 3, a fixing protrusion 5 is fixedly connected to the top of the placement platform 2, and multiple fixing protrusions 5 are arranged in a corresponding manner; a fixing rod is fixedly connected between the corresponding fixing protrusions 5, and a rotating cylinder 51 is rotatably connected to the side wall of the fixing rod; during operation, the rotating cylinder 51 can rotate by means of its own rotational connection with the fixing rod, so as to facilitate the placement of the steel bars by the workers and avoid excessive wear of the steel bars on the placement platform 2. The fixing protrusion 5 serves to support the rotating cylinder 51. This step reduces the friction between the steel bars and the device components by setting the rotating cylinder 51, avoids excessive wear of the steel bars on the surface of the device, helps to protect the integrity of the device component structure, and extends the service life of the device.

[0029] As shown in Figure 2, a protective shell 6 is fixed to the side wall of the lifting platform 16, and the protective shell 6 is set in a position and size corresponding to the cutting tool 17. During operation, whenever a corresponding component of the cutting tool 17 becomes loose and falls off the side wall of the lifting platform 16, the protective shell 6 fixed to the side wall of the lifting platform 16 can block the cutting tool 17 by itself. At the same time, the protective shell 6 can block some of the grinding sparks. This step, by setting the protective shell 6, provides convenience for workers to cut steel bars, avoids the large-scale spread of grinding sparks, and prevents the components of the cutting tool 17 from falling off or flying out, which helps to reduce safety hazards.

[0030] As shown in Figures 1, 2 and 4, the limiting block 3 and the slide rail 31 are made of stainless steel. During operation, the stainless steel limiting block 3 and the slide rail 31 can maintain a smooth surface for a long time, preventing the components from jamming. This step, by using stainless steel for the limiting block 3 and the slide rail 31 to maintain a smooth surface and a low coefficient of friction between them, helps to prevent jamming and reduces the maintenance requirements of the device.

[0031] During operation, the worker can control the height of the cutting tool 17 by driving the first motor 15, thereby completing the cutting of the building steel bars. During the process, whenever the first motor 15, fixed to the top of the protective block 18, is driven, the first transmission wheel 13, which is fixedly connected to the output end of the first motor 15, will rotate. At this time, the first transmission track 14, located between the two first transmission wheels 13, will cause the two first transmission wheels 13 to move synchronously. Since the two first threaded rods 12 are threadedly connected to the lifting platform 16, with the drive of the first motor 15 and the rotation of the two first threaded rods 12, the lifting platform 16 will move vertically, thereby cutting the steel bars placed at its bottom. The protective block 18 connects the two support cylinders 11 and protects the first transmission track 14. The base 1 provides overall support. Workers can position the steel bar to be cut on the top of the placement platform 2 by driving the second motor 25, thus preventing displacement of the steel bar during cutting. During the process, whenever the second motor 25, fixed inside the placement platform 2, is driven, its power is transmitted to the rotating rod 22 via the second transmission wheel 26 and the second transmission track 27. At this time, the rotating rod 22, fixed with multiple rotating positioning blocks 23, will rotate inside the placement platform 2. With the rotation of the rotating rod 22, the multiple rotating positioning blocks 23 will perform circular motion within the multiple movable slots 24. Subsequently, with the rotation positioning… As block 23 moves, multiple rotating positioning blocks 23 will contact the reinforcing bar placed on top of the placement platform 2, and ultimately push the reinforcing bar towards the fixed positioning block 21 and clamp it. The second threaded rod 33 is threadedly connected to the corresponding limiting block 3, and the limiting rod 34 is slidably connected to the corresponding limiting block 3. The operator can adjust the horizontal position of the two support cylinders 11 and the cutting tool 17 set between the two support cylinders 11 by driving the third motor 32. Whenever the placement platform 2 is driven, the limiting block 3, the second threaded rod 33, and the limiting rod 34 can cooperate with each other to make the two support cylinders 11 slide synchronously on the top of their respective slide rails 31. Whenever the limiting block 3 moves under the action of the third motor 32 During operation, multiple rollers 41, located at the bottom of the limiting block 3 and rotatably connected to the bottom of the fixed block 4, can rotate to convert the sliding friction between components into rolling friction. The rotating cylinder 51, through its rotational connection with the fixed rod, can rotate as workers place the rebar on top of the placement platform 2, thus facilitating rebar placement and preventing excessive wear on the placement platform 2. The fixed protrusion 5 serves to support the rotating cylinder 51. Whenever a component of the cutting tool 17 becomes loose and detaches from the side wall of the lifting platform 16, the protective shell 6, fixed to the side wall of the lifting platform 16, can block the cutting tool 17. Simultaneously, the protective shell 6 can partially block sparks from grinding.The stainless steel limiting block 3 and slide rail 31 maintain a smooth surface for extended periods, preventing component jamming.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel bar cutting and processing device for construction, comprising a base (1), characterized in that: The base (1) is provided with a support cylinder (11) on its top, and the two support cylinders (11) are arranged in a corresponding manner; the two support cylinders (11) are rotatably connected to a first threaded rod (12); the end of the first threaded rod (12) is fixedly connected to a first transmission wheel (13), and a first transmission track (14) is provided between the two first transmission wheels (13); a first motor (15) is provided on the top of one of the first transmission wheels (13); a lifting platform (16) is threadedly connected to the side wall of the two first threaded rods (12), and the lifting platform (16) is set to the size of the support cylinder (11); a cutting tool (17) is fixedly connected to the side wall of the lifting platform (16); a protective block (18) is fixedly connected to the top of the two support cylinders (11), and the bottom of the first motor (15) is fixedly connected to the top of the protective block (18).

2. The steel bar cutting and processing device according to claim 1, characterized in that: A placement platform (2) is fixedly connected to the top of the base (1); a fixed positioning block (21) is fixedly connected to the top of the placement platform (2), and multiple fixed positioning blocks (21) are arranged in a linear array; a rotating rod (22) is rotatably connected to the inner side wall of the placement platform (2); a rotating positioning block (23) is fixedly connected to the side wall of the rotating rod (22), and multiple rotating positioning blocks (23) are arranged to correspond to the size and position of the fixed positioning block (21); an movable groove (24) is opened on the side wall of the placement platform (2), and multiple movable grooves (24) are arranged to correspond to the position of the rotating positioning block (23); a second motor (25) is fixedly connected inside the placement platform (2); a second transmission wheel (26) is fixedly connected to the output end of the second motor (25), a second transmission wheel (26) is fixedly connected to the end of the rotating rod (22), and a second transmission track (27) is arranged between the two lifting platforms (16).

3. The steel bar cutting and processing device according to claim 1, characterized in that: Limiting blocks (3) are fixed to the bottom of the two support cylinders (11); a slide rail (31) is fixed to the top of the base (1), and the two slide rails (31) are respectively set to correspond to the size and position of the limiting blocks (3); a third motor (32) is fixed to the side wall of one of the slide rails (31), and a second threaded rod (33) is fixed to the output end of the third motor (32); a limiting rod (34) is fixed to the inside of the other slide rail (31).

4. The steel bar cutting and processing device according to claim 3, characterized in that: The bottom of the limiting block (3) is fixedly connected to a fixing block (4); the bottom of the fixing block (4) is rotatably connected to a roller (41), and multiple rollers (41) are arranged in a corresponding manner.

5. The steel bar cutting and processing device according to claim 2, characterized in that: The top of the placement platform (2) is fixed with a fixing protrusion (5), and multiple fixing protrusions (5) are arranged in a corresponding manner; a fixing rod is fixed between the fixing protrusions (5), and a rotating cylinder (51) is rotatably connected to the side wall of the fixing rod.

6. The steel bar cutting and processing device according to claim 1, characterized in that: A protective shell (6) is fixed to the side wall of the lifting platform (16), and the protective shell (6) is set in the position and size corresponding to the cutting tool (17).

7. A steel bar cutting and processing device according to claim 3, characterized in that: The limiting block (3) and the slide rail (31) are made of stainless steel.