Framework bending device for shield segment production
By using heating rollers and electric heating elements to reduce the hardness of steel bars in the production of shield segments, and combining it with an automated pulley system, the problems of hidden safety hazards in steel bar bending and poor forming effects in the existing technology have been solved, and a safer and more efficient process has been achieved. bending process.
Patent Information
- Application Number
- CN202421202662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the existing shield pipe sheet production, the bending process of the steel bar frame skeleton poses safety risks, and due to the high hardness of the steel bar, direct bending will affect the forming effect.
A skeleton bending device is designed, which uses heating rollers and electric heating elements to heat the steel bars to reduce the hardness and facilitate bending. At the same time, a motor is used to drive the pulley system to automatically complete the bending of the steel bars.
The hardness of the steel bars is reduced through heat treatment, which improves the safety and forming effect of bending. The automation system reduces the need for manual assistance and improves production efficiency.
Smart Images
Figure CN222370217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shield segment production and bending, in particular to a skeleton bending device for shield segment production. Background Art
[0002] The shield segment is the main assembly component of shield construction. It is usually made of high-strength anti-seepage concrete. The segment is usually arc-shaped, and the skeleton is made of steel bars, which need to be bent into an arc shape to match the shape of the segment.
[0003] The existing method of bending the steel bar skeleton is usually to use a bending machine to bend it. The bending machine is mainly composed of a motor, a bending mechanism and a clamping plate. When bending the steel bar, the motor drives the bending mechanism, and the steel bar is bent into the required angle and shape through the clamping and rotation of the bending plate and the clamping block.
[0004] The existing bending machines need assistance during bending, which poses certain safety hazards and is not conducive to ensuring the safety of bending in the later stage. In addition, due to the high hardness of the steel bars, direct bending will affect the forming effect of the steel bars. Therefore, a skeleton bending device for shield segment production is proposed to address the above problems. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a skeleton bending device for producing shield segments.
[0006] The technical solution adopted by the utility model to solve its technical problems is: the skeleton bending device for shield segment production described in the utility model comprises a base; a fixed plate is fixedly connected to the base, two auxiliary wheels are rotatably mounted on the fixed plate through a rotating shaft, a fixed ring is fixedly connected to the fixed plate, a fixed seat is fixedly connected to the top of the circumferential surface of the fixed ring, a swing rod is rotatably mounted in the fixed seat through a pin shaft, a heating roller is rotatably mounted on one end of the swing rod, a spring is fixedly connected between the other end of the swing rod and the fixed seat, a movable electrode rod is mounted on the side wall of the swing rod, an arc electrode plate is mounted on the side wall of the fixed plate, and the movable electrode rod is rotated along The arc electrode plate moves, and the movable electrode rod, the arc electrode plate and the heating roller are electrically connected. Before bending the steel bar, a heating mechanism is set. When the steel bar passes through the fixed ring, the heating roller will be lifted by the steel bar, and the spring is squeezed by force, so that the swing rod drives the movable electrode rod to contact the arc electrode plate, so that the heating roller is energized to heat the steel bar, reduce the hardness of the steel bar, and facilitate subsequent bending and forming of the steel bar. When no steel bar passes through, the swing rod is restored to its original vertical state under the action of the spring, the movable electrode rod is separated from the arc electrode plate, and the heating roller is not energized, thereby saving energy.
[0007] Preferably, a supporting plate is fixedly connected to the top end of the side wall of the fixed plate, a screw hole is opened on the supporting plate, a threaded rod is rotatably installed in the screw hole, a turntable is fixedly connected to the top end of the threaded rod, the other end of the threaded rod is rotatably installed with a mounting seat via a coupling plate, a bending roller is rotatably installed in the mounting seat via a pin shaft, when the bending angle is adjusted, the turntable is rotated, and with the cooperation of the limit groove and the limit block, the threaded rod drives the bending roller to move vertically downward stably, thereby changing the relative position between the bending roller and the two conveying rollers, that is, the bending roller can be adjusted according to the bending degree, thereby meeting the bending requirements of different bending degrees.
[0008] Preferably, a limiting groove is provided on the fixed plate, a limiting block is movably installed in the limiting groove, and the limiting block is fixedly connected to the mounting seat. When the device is used, the bending roller can be stably moved vertically downward through the cooperation between the limiting groove and the limiting block.
[0009] Preferably, two conveying rollers are installed on the bottom side of the fixed plate through a rotating shaft for cooperation and rotation, and the other ends of the two rotating shafts are each provided with a first pulley, and a motor is installed on the fixed plate, and the output end of the motor is connected to a rotating rod, and a second pulley is provided on the rotating rod, and the second pulley and the outer surface of the two first pulleys are cooperated to be provided with a conveyor belt. After the bending roller is adjusted to the required position, when bending is performed, the motor is started to rotate the second pulley, and with the cooperation of the conveyor belt, the two first pulleys also rotate accordingly, thereby causing the conveying roller to rotate accordingly, and with the cooperation of the bending roller, the steel bars can be bent into the required arc shape by guiding and pressing the steel bars for bending, and the bending of the steel bars can be completed without assistance, thereby ensuring the safety of the later bending.
[0010] The utility model is beneficial in that:
[0011] 1. Before the utility model bends the steel bar, a heating mechanism is arranged. When the steel bar passes through the fixed ring, the heating roller will be lifted by the steel bar, and the spring will be squeezed by force, so that the swing rod drives the movable electrode rod to contact the arc electrode plate, so that the heating roller is energized to heat the steel bar, so that the hardness of the steel bar becomes lower, which is conducive to the subsequent bending process and facilitates the subsequent better bending and forming of the steel bar. When no steel bar passes through, the swing rod is restored to its original vertical state under the action of the spring, the movable electrode rod is separated from the arc electrode plate, and the heating roller is not energized, thereby saving energy.
[0012] 2. When the utility model is bending, the motor is started to rotate the second pulley, and with the cooperation of the conveyor belt, the two first pulleys are also rotated, so that the conveying roller is also rotated, and with the cooperation of the bending roller, the steel bar is guided and pressed to bend, so that the steel bar can be bent into the required arc shape, and the bending of the steel bar can be completed without assistance, thereby ensuring the safety of the later bending. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0014] Figure 1 It is a schematic diagram of the overall main view three-dimensional structure;
[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the driving rotating assembly;
[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the bending mechanism;
[0017] Figure 4 It is a schematic diagram of a partial side view of the three-dimensional structure.
[0018] In the figure: 1. base; 2. fixed plate; 3. auxiliary wheel; 4. fixed ring; 5. fixed seat; 6. swing rod; 7. heating roller; 8. spring; 9. movable electrode rod; 10. arc electrode plate; 11. support plate; 12. threaded rod; 13. turntable; 14. mounting seat; 15. bending roller; 16. limit groove; 17. limit block; 18. rotating shaft; 19. conveyor roller; 20. first pulley; 21. motor; 22. second pulley; 23. conveyor belt. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1 and Figure 4 As shown, a skeleton bending device for shield segment production includes a base 1; a fixed plate 2 is fixedly connected to the base 1, two auxiliary wheels 3 are rotatably mounted on the fixed plate 2 through a rotating shaft, a fixed ring 4 is fixedly connected to the fixed plate 2, a fixed seat 5 is fixedly connected to the top of the circumferential surface of the fixed ring 4, a swing rod 6 is rotatably mounted in the fixed seat 5 through a pin shaft, a heating roller 7 is rotatably mounted on one end of the swing rod 6, a spring 8 is fixedly connected between the other end of the swing rod 6 and the fixed seat 5, a movable electrode rod 9 is mounted on the side wall of the swing rod 6, an arc electrode plate 10 is mounted on the side wall of the fixed plate 2, and the movable electrode rod 9 moves along the arc electrode plate 10, and the movable electrode rod 9, the arc electrode plate 10 and the movable electrode rod 9 move along the arc electrode plate 10. The electrode plate 10 is electrically connected to the heating roller 7; before bending the steel bar, a heating mechanism is set up. When the steel bar passes through the fixed ring 4, the heating roller 7 will be lifted by the steel bar, and the spring 8 will be squeezed by the force, so that the swing rod 6 drives the movable electrode rod 9 to contact the arc electrode plate 10, so that the heating roller 7 is energized to heat the steel bar to reduce the hardness of the steel bar, which is conducive to the subsequent bending process and facilitates the subsequent better bending of the steel bar. When no steel bar passes through, the swing rod 6 is restored to its original vertical state under the action of the spring 8, the movable electrode rod 9 is separated from the arc electrode plate 10, and the heating roller 7 is not energized, thereby saving energy.
[0021] See also Figure 1As shown, a support plate 11 is fixedly connected to the top of the side wall of the fixed plate 2, and a screw hole is opened on the support plate 11, and a threaded rod 12 is rotatably installed in the screw hole, and a turntable 13 is fixedly connected to the top of the threaded rod 12, and the other end of the threaded rod 12 is rotatably installed with a mounting seat 14 through a coupling plate, and a bending roller 15 is rotatably installed in the mounting seat 14 through a pin shaft. A limiting groove 16 is opened on the fixed plate 2, and a limiting block 17 is movably installed in the limiting groove 16, and the limiting block 17 is fixed to the mounting seat 14; when the bending angle is adjusted, the turntable 13 is rotated, and the threaded rod 12 drives the bending roller 15 to move vertically downward stably under the cooperation of the limiting groove 16 and the limiting block 17, so that the relative position between the bending roller 15 and the two conveying rollers 19 can be changed, that is, the bending roller 15 can be adjusted according to the bending degree, so as to meet the bending requirements of different bending degrees.
[0022] See also Figure 1-3 As shown, two conveying rollers 19 are installed on the bottom side of the fixed plate 2 through a rotating shaft 18 for cooperation and rotation, and the other ends of the two rotating shafts 18 are both provided with a first pulley 20. A motor 21 is installed on the fixed plate 2, and the output end of the motor 21 is connected to a rotating rod, on which a second pulley 22 is provided, and the outer surfaces of the second pulley 22 and the two first pulleys 20 are provided with a conveyor belt 23; after the bending roller 15 is adjusted to the required position, when bending, the motor 21 is started to rotate the second pulley 22, and with the cooperation of the conveyor belt 23, the two first pulleys 20 are also rotated, so that the conveying roller 19 is also rotated, and with the cooperation of the bending roller 15, the steel bar can be bent into a required arc shape by guiding and pressing the steel bar for bending, and the bending of the steel bar can be completed without assistance, thereby ensuring the safety of the later bending.
[0023] Working principle: Since the existing bending machine needs assistance when bending, there are certain safety hazards during bending, which is not conducive to ensuring the safety of bending in the later stage. In addition, due to the high hardness of the steel bar, direct bending will affect the forming effect of the steel bar. Therefore, in view of the above problems, a skeleton bending device for shield segment production is proposed; when bending, the motor 21 is started to rotate the second pulley 22, and with the cooperation of the conveyor belt 23, the two first pulleys 20 are also rotated, so that the conveying roller 19 is also rotated. With the cooperation of the bending roller 15, the steel bar can be bent into the required arc shape by guiding and pressing the steel bar. The steel bar can be bent without assistance, which ensures the safety of the later bending.
[0024] Before bending the steel bars, a heating mechanism is provided. When the steel bars pass through the fixed ring 4, the heating roller 7 will be lifted by the steel bars, and the spring 8 will be squeezed by the force, so that the swing rod 6 drives the movable electrode rod 9 to contact the arc electrode plate 10, so that the heating roller 7 is energized to heat the steel bars, thereby reducing the hardness of the steel bars, which is beneficial for the subsequent bending process and facilitates the subsequent better bending of the steel bars. When no steel bars pass through, the swing rod 6 is restored to its original vertical state under the action of the spring 8, the movable electrode rod 9 is separated from the arc electrode plate 10, and the heating roller 7 is not energized, thereby saving energy.
[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A skeleton bending device for shield segment production, characterized in that: The invention comprises a base (1); a fixed plate (2) is fixedly connected to the base (1); two auxiliary wheels (3) are rotatably mounted on the fixed plate (2) via a rotating shaft; a fixed ring (4) is fixedly connected to the fixed plate (2); a fixed seat (5) is fixedly connected to the top of the circumferential surface of the fixed ring (4); a swing rod (6) is rotatably mounted in the fixed seat (5) via a pin shaft; a heating roller (7) is rotatably mounted on one end of the swing rod (6); a spring (8) is fixedly connected between the other end of the swing rod (6) and the fixed seat (5); a movable electrode rod (9) is mounted on the side wall of the swing rod (6); an arc electrode plate (10) is mounted on the side wall of the fixed plate (2); and the movable electrode rod (9) moves along the arc electrode plate (10); and the movable electrode rod (9), the arc electrode plate (10) and the heating roller (7) are electrically connected.
2. A skeleton bending device for shield segment production according to claim 1, characterized in that: A support plate (11) is fixedly connected to the top end of the side wall of the fixing plate (2), a screw hole is provided on the support plate (11), a threaded rod (12) is rotatably installed in the screw hole, and a rotating disk (13) is fixedly connected to the top end of the threaded rod (12).
3. The skeleton bending device for shield segment production according to claim 2 is characterized in that: The other end of the threaded rod (12) is rotatably mounted on a mounting seat (14) via a coupling disk, and a bending roller (15) is rotatably mounted in the mounting seat (14) via a pin shaft.
4. The skeleton bending device for shield segment production according to claim 1 is characterized in that: A limiting groove (16) is provided on the fixing plate (2), a limiting block (17) is movably installed in the limiting groove (16), and the limiting block (17) is fixedly connected to the mounting seat (14).
5. The skeleton bending device for shield segment production according to claim 1 is characterized in that: Two conveying rollers (19) are mounted on the bottom side of the fixed plate (2) via a rotating shaft (18) for rotation, and the other ends of the two rotating shafts (18) are each provided with a first belt pulley (20).
6. The skeleton bending device for shield segment production according to claim 1 is characterized in that: The fixing plate (2) is provided with an electric motor (21), the output end of the electric motor (21) is connected with a rotating rod, a second belt pulley (22) is sleeved on the rotating rod, and a conveyor belt (23) is sleeved on the outer surface of the second belt pulley (22) and the two first belt pulleys (20).