Adjustable reinforcing cage making device

Abstract

This utility model relates to the technical field of rebar cage fabrication equipment, and discloses an adjustable rebar cage fabrication device, including a rebar pad beam and multiple sets of jig units detachably connected to the rebar pad beam. Each jig unit includes multiple jig mechanisms spaced apart along the length of the rebar pad beam. Each jig mechanism includes a lower arc-shaped jig and an upper arc-shaped jig detachably connected to the lower arc-shaped jig. The upper and lower arc-shaped jigs are provided with mounting grooves for installing the main reinforcing bars. It also includes several adjustable internal support mechanisms arranged along the length of the rebar pad beam. Each adjustable internal support mechanism includes a central connecting plate and multiple internal support rods of equal length radially arranged along the central connecting plate. The length of the internal support rods is adjustable. This utility model patent solves the problems of high cost and low production efficiency in the prior art when fabricating rebar cages of various sizes and models.

Description

Technical Field

[0001] This utility model relates to the technical field of steel cage manufacturing equipment, specifically to an adjustable steel cage manufacturing device. Background Technology

[0002] In current bridge construction, circular piers of various diameters are increasingly being used. The main steel reinforcement structure used in the construction of circular piers is the steel cage. Currently, the main structure of the steel cage includes main bars, inner ring stirrups, and spiral bars. The accuracy of the installation of the main bars and inner ring stirrups, and whether deformation occurs during transportation, directly affect the construction quality of the pier and other structures. To facilitate the welding and fabrication of the steel cage, existing technologies employ a dedicated jig structure for welding. Specifically, the jig structure mainly consists of two interconnected arc-shaped jigs (i.e., an upper arc-shaped jig and a lower arc-shaped jig). Support grooves for installing and placing the main bars are set on the arc-shaped jigs. All support grooves on the upper and lower arc-shaped jigs are located on the circumference of all the main bars arranged in the steel cage. At the same time, an internal support structure is set inside the steel cage to provide auxiliary support from within the steel cage, thereby making the steel cage more stable during welding and post-weld transportation.

[0003] While existing jig structures can be used to weld rebar cages, in actual construction, due to the diversity and complexity of rebar cage sizes, using traditional jig structures to fabricate rebar cages of different sizes requires not only different jig structures to support the main reinforcement bars, but also internal support structures of varying lengths to provide auxiliary support for the different sized cages. Therefore, using existing jig and internal support structures to fabricate rebar cages of different sizes is not only costly, but also consumes a significant amount of space during storage, hindering the low-cost and efficient fabrication of rebar cages. Utility Model Content

[0004] The present invention aims to provide an adjustable rebar cage manufacturing device to solve the problems of high cost and low manufacturing efficiency in the production of rebar cages of various sizes and models in the prior art.

[0005] To solve the above problems, this utility model adopts the following technical solution: an adjustable rebar cage fabrication device, comprising a rebar pad beam and multiple sets of jig units detachably connected to the rebar pad beam. Each jig unit includes multiple jig mechanisms spaced apart along the length of the rebar pad beam. Each jig mechanism is provided with a lower arc-shaped jig and an upper arc-shaped jig detachably connected to the lower arc-shaped jig. The upper arc-shaped jig and the lower arc-shaped jig are provided with mounting grooves for installing the main reinforcement bars. It also includes several adjustable internal support mechanisms arranged along the length of the rebar pad beam. The adjustable internal support mechanism includes a central connecting plate and multiple internal support rods arranged radially and equally along the central connecting plate. The length of the internal support rods is adjustable.

[0006] The principle of this solution is as follows: In this application, multiple sets of jig units are provided. Each set of jig units includes multiple jig mechanisms arranged at intervals along the length of the reinforcing bar pad beam. The jig mechanism includes a lower arc-shaped jig and an upper arc-shaped jig that is detachably connected to the lower arc-shaped jig. The installation slots provided in the lower arc-shaped jig and the upper arc-shaped jig can be used to install and position the main reinforcement bars of a certain size and model of reinforcing cage. Moreover, the circumference of all the installation slots arranged after the upper arc-shaped jig and the lower arc-shaped jig in different sets of jig units is different, so that different jig units can provide positioning support for the main reinforcement bars of different models of reinforcing cages, thus meeting the needs of the production of different models of reinforcing cages.

[0007] This application sets up a lower arc-shaped jig and an upper arc-shaped jig. The lower arc-shaped jig is connected to the reinforcing steel pad beam. After some of the main reinforcing bars are installed in the installation groove of the lower arc-shaped jig, the inner ring stirrups (as in the prior art) are welded to the already installed and positioned main reinforcing bars. Then, the upper arc-shaped jig is installed and connected to the lower arc-shaped jig, and the remaining main reinforcing bars are connected to the upper arc-shaped jig. The subsequently installed main reinforcing bars are then welded and fixed to the inner ring stirrups, thus completing the installation of all main reinforcing bars and the welding and fixing of the inner ring stirrups, completing the welding of the main structure of the reinforcing cage. Afterward, an adjustable internal support mechanism is connected to the reinforcing cage. The length of the internal support rod is adjusted according to the size of the reinforcing cage so that the length of the internal support rod is adjusted to a state of contact with the inner ring stirrups. Then, the end of the internal support rod is temporarily fixed to the inner ring stirrups by welding or other fixing methods. The adjustable internal support mechanism provides auxiliary support for the reinforcing cage, so that the reinforcing cage maintains structural stability during the subsequent welding of spiral reinforcing bars and transportation to the site.

[0008] The beneficial effects of this plan are:

[0009] 1. Effectively reduces the cost of manufacturing different types of rebar cages: Compared to existing technologies that require different internal support structures to assist in supporting and fixing different types of rebar cages, resulting in a large number of internal support structures and requiring a large amount of space for storage, thus increasing the overall cost, this application uses an adjustable internal support mechanism. When manufacturing different types of rebar cages, the adjustable internal support mechanism only needs to be adjusted to a suitable length, and the same adjustable internal support mechanism can be used to meet the manufacturing needs of all types and sizes of rebar cages. This reduces the manufacturing and storage costs of the internal support structure, effectively lowering the overall cost of rebar cage manufacturing.

[0010] 2. Effectively improves the efficiency of steel cage fabrication: The adjustable internal support mechanism in this application can quickly adapt to the fabrication of steel cages of different specifications, reduce the welding time of the internal support of the steel bars, speed up the fabrication and installation progress of the steel cage, and effectively improve the overall construction efficiency.

[0011] Preferably, as an improvement, a connecting mechanism is detachably connected between the upper arc-shaped tire frame and the lower arc-shaped tire frame.

[0012] In this solution, a connecting mechanism is used to enable the upper arc-shaped jig to be precisely and quickly detachably connected to the lower arc-shaped jig, so as to quickly and accurately install and position the main reinforcement bars, effectively improving the production efficiency of the steel cage.

[0013] Preferably, as an improvement, the connecting mechanism includes two connecting ear plates fixedly connected to the upper arc-shaped frame, with the two connecting ear plates located at both ends of the upper arc-shaped frame. Each connecting ear plate is provided with at least one through hole, and the lower arc-shaped frame is provided with a number of locking holes equal to the number of through holes and corresponding one-to-one.

[0014] In this solution, by setting connecting ear plate structures at both ends of the upper arc-shaped jig, and fixing the upper arc-shaped jig onto the lower arc-shaped jig by passing screws through the through holes on the connecting ear plates and fixing them with the locking holes during the fixing process, the upper arc-shaped jig can be fixed stably and conveniently.

[0015] Preferably, as an improvement, the upper arc-shaped frame is provided with lifting holes.

[0016] In this design, the upper arc-shaped jig is equipped with lifting holes, which allow the upper arc-shaped jig to be easily lifted during assembly and disassembly, making the operation more convenient and efficient.

[0017] Preferably, as an improvement, the spacing between adjacent frame mechanisms is less than or equal to 4m, and the distance between adjacent adjustable internal support mechanisms is less than or equal to 2m.

[0018] In this scheme, the distance between adjacent jig mechanisms is set to be less than or equal to 4m to ensure that the jig mechanism can provide stable support and positioning for the main reinforcement bars, and to avoid bending and deformation of the main reinforcement bars due to their own weight after installation, thus ensuring the manufacturing quality of the steel cage. In addition, the distance between adjacent adjustable internal support mechanisms is set to be less than or equal to 2m, so that the adjustable internal support mechanism can provide stable auxiliary support for the inside of the steel cage, making the welding and transportation process of the steel cage more stable.

[0019] Preferably, as an improvement, one end of the reinforcing bar pad beam is fixedly connected to a vertically arranged positioning base plate.

[0020] In this solution, a positioning base plate is used to position the ends of the main reinforcing bars at the end of the reinforcing cage, ensuring that the ends of the main reinforcing bars at the end of the reinforcing cage are on the same plane, thus ensuring the manufacturing quality of the reinforcing cage.

[0021] Preferably, as an improvement, the inner support rod includes a fixed section and a rotating section, one end of the fixed section is fixedly connected to the central connecting plate, and the other end is threadedly engaged with the rotating section.

[0022] In this design, the inner support rod is configured with a fixed section and a rotating section. When the rotating section rotates relative to the fixed section, the length of the threaded connection between the rotating section and the fixed section changes, which in turn changes the length of the inner support rod, thereby enabling the inner support rod to provide stable auxiliary support for steel cages of different specifications.

[0023] Preferably, as an improvement, the end of the rotating section away from the fixed section is threadedly rotatably connected to an abutment section.

[0024] In this design, a connecting section is threaded and rotated at the end of the rotating section away from the fixed section. When the length of the inner support rod is adjusted by rotating the rotating section, the connecting section can rotate relative to the rotating section and remain stationary relative to the inner ring stirrup when it comes into contact with the inner ring stirrup, until the connecting section and the inner ring stirrup are tightly pressed together. This avoids wear on the inner ring stirrup when adjusting the length of the inner support rod and effectively protects the inner ring stirrup.

[0025] Preferably, as an improvement, the end of the rotating segment away from the fixed segment is rotatably connected to a contact segment, and the end of the contact segment away from the rotating segment is provided with a slot that mates with the inner ring stirrup.

[0026] In this design, a contact section is rotatably connected to the end of the rotating section away from the fixed section, and a slot is opened on the end of the contact section away from the rotating section. When installing the inner support rod, the length of the inner support rod can first be adjusted to be slightly less than the predetermined length, and then the rotating section is rotated so that the contact section gradually approaches the inner ring stirrup. When the contact section begins to contact the inner ring stirrup, even if the length of the inner support rod is increased by continuing to rotate the rotating section, the slot of the contact section will be inserted into the inner ring stirrup. The contact section can rotate relative to the rotating section without continuing to rotate with the rotating section until the contact section is completely in contact with and abuts the inner ring stirrup, ensuring that the inner support rod can be installed smoothly and accurately.

[0027] Preferably, as an improvement, the drain pipe is a corrugated pipe.

[0028] In this solution, corrugated pipes are used as drainage pipes. The corrugated pipes have a stable structure and can drain water stably. Furthermore, the bending angle of the corrugated pipes can be adjusted, and the bending shape of the corrugated pipes can be adjusted according to the setting direction of the retaining wall, so that the corrugated pipes can better meet the usage requirements. Attached Figure Description

[0029] Figure 1 This is a schematic diagram showing the connection between two sets of frame mechanisms and the steel reinforcement pad beam in the same frame unit in Embodiment 1 of this utility model.

[0030] Figure 2 This is a schematic diagram showing the connection between the upper arc-shaped tire frame and the lower arc-shaped tire frame in Embodiment 1 of this utility model.

[0031] Figure 3 This is a schematic diagram of the connection between the adjustable inner support mechanism and the inner ring stirrup in Embodiment 1 of this utility model.

[0032] Figure 4 This is a schematic diagram of the connection between the upper arc-shaped tire frame and the lower arc-shaped tire frame in Embodiment 2 of this utility model.

[0033] Figure 5 This is a schematic diagram of the connection between the adjustable inner support mechanism and the inner ring stirrup in Embodiment 3 of this utility model.

[0034] Figure 6 This is a partial schematic diagram of the connection between the contact section and the inner ring stirrup in Embodiment 3 of this utility model. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method:

[0036] The reference numerals in the accompanying drawings include: 1. Reinforcing steel pad beam; 2. Lower arc-shaped jig; 201. Mounting groove; 3. Upper arc-shaped jig; 301. Connecting ear plate; 302. Through hole; 303. Lifting hole; 4. Main reinforcement; 5. Central connecting plate; 6. Inner support rod; 6. Fixed section; 601. Rotating section; 602. Clamping section; 603. Contact section; 604. Slot; 6041. Positioning base plate; 7. Inner ring stirrup; 8. Support plate; 9.

[0037] Example 1

[0038] This embodiment is as shown in the attached figure. Figure 1 As shown: An adjustable rebar cage fabrication device includes a rebar pad beam 1 and multiple sets of jig units detachably connected to the rebar pad beam 1. Each jig unit includes multiple jig mechanisms spaced apart along the length of the rebar pad beam 1. Figure 2 Each jig mechanism includes a lower arc-shaped jig 2 and an upper arc-shaped jig 3 detachably connected to the top of the lower arc-shaped jig 2. The lower arc-shaped jig 2 is detachably connected to the reinforcing bar support beam 1 by screws. Both the lower arc-shaped jig 2 and the upper arc-shaped jig 3 have mounting slots 201 for installing the main reinforcing bars 4 of the existing reinforcing cage. The top of the lower arc-shaped jig 2 has a downward-curving lower arc-shaped surface, and the corresponding support slots are arranged along the arc-shaped intervals of the lower arc-shaped surface. The top of the upper arc-shaped jig 3 has an upward-curving upper arc-shaped surface, and the corresponding support slots are arranged along the arc-shaped intervals of the upper arc-shaped surface. Therefore, all mounting slots 201 in the same jig mechanism are arranged at equal intervals on the same circumference, while the circumference size of the mounting slots 201 in different jig units is different, so that different jig units can be used to install reinforcing cages of different specifications and models, which will not be elaborated here.

[0039] like Figure 2 As shown, the upper arc-shaped jig 3 and the lower arc-shaped jig 2 in the jig frame mechanism are detachably connected by a connecting mechanism, which can be used to assemble and disassemble the upper arc-shaped jig 3 during use. Specifically, the connecting mechanism includes connecting ear plates 301 fixedly connected to the upper arc-shaped frame 3. The connecting ear plates 301 are integrally formed and connected to the upper arc-shaped frame 3. There are two connecting ear plates 301, and the two connecting ear plates 301 are located at both ends of the bottom of the upper arc-shaped frame 3. Each connecting ear plate 301 is provided with at least one through hole 302. In this embodiment, two through holes 302 are vertically arranged on each connecting ear plate 301, and the lower arc-shaped frame 2 has a number of lock holes that are equal to and correspond one-to-one with the number of through holes 302. When the upper arc-shaped frame 3 is installed on the lower arc-shaped frame 2, it is only necessary to make the through holes 302 and the lock holes face each other, and then use screws and nuts in the prior art to fix the connecting ear plates 301 and the lower arc-shaped frame 2. Finally, the upper arc-shaped frame 3 is installed and fixed on the lower arc-shaped frame 2. Of course, the lock holes can also be directly set as threaded hole structures, and the screws are directly threaded into the lock holes when fixed, which can also achieve the installation and fixation of the upper arc-shaped frame 3.

[0040] like Figure 3 As shown, this embodiment also includes multiple adjustable internal support mechanisms arranged along the length of the reinforcing steel pad beam 1. Each adjustable internal support mechanism includes a central connecting plate 5 and multiple internal support rods 6 arranged radially and equally along the central connecting plate 5. The length of the internal support rods 6 along the radial direction of the central connecting plate 5 is adjustable. Specifically, the internal support rod 6 includes a fixed section 601 and a rotating section 602. One end of the fixed section 601 is welded to the central connecting plate 5, and the outer wall of the other end is provided with external threads. One end of the rotating section 602 is provided with an internal thread that engages with the external thread at the end of the fixed section 601. When the rotating section 602 is rotated, the thread engagement length between the rotating section 602 and the fixed section 601 changes, thereby adjusting the overall length of the internal support rod 6.

[0041] In addition, such as Figure 1 As shown, in this embodiment, a vertically arranged positioning base plate 7 is fixedly connected to one end of the reinforcing bar pad beam 1. The positioning base plate 7 is fixed by screws or welding. The positioning base plate 7 serves as a reference surface to position the ends of the main reinforcing bars 4 in the reinforcing cage, ensuring that the ends of all the main reinforcing bars 4 are located in the same vertical plane, thus ensuring the accuracy of the reinforcing cage welding. At the same time, to ensure the stability and accuracy of the installation of the main reinforcing bars 4, in this embodiment, the distance between adjacent jig mechanisms is less than or equal to 4m, preferably 3m, and the distance between adjacent adjustable inner support mechanisms is less than or equal to 2m, preferably 2m.

[0042] The specific implementation process is as follows:

[0043] When welding and fabricating a steel cage of a certain specification and size, a jig mechanism of the corresponding size and model is selected according to the position and size of the main reinforcement 4 in the steel cage to ensure that the jig mechanism can accurately position and support the main reinforcement 4 in the steel cage of that specification and size. After selecting the corresponding jig mechanism, all the lower arc jigs 2 in the same jig unit are first fixed to the steel pad beam 1 with screws, etc. Then, the number of main reinforcement 4 equal to the number of support slots on the lower arc jig 2 is placed on the mounting slot 201 of the lower arc jig 2, and one end of the main reinforcement 4 is in contact with the positioning base plate 7 to ensure that all the main reinforcement 4 are accurately positioned in the length direction of the main reinforcement 4; then, the inner ring stirrups 8 in the prior art are welded to the main reinforcement 4 that have been installed and positioned. The inner ring stirrups 8 are set at a spacing of 2m.

[0044] After all the inner ring stirrups 8 are welded, an adjustable inner support mechanism is connected to the inner ring stirrups 8. Specifically, the length of the inner support rod 6 is adjusted according to the size of the inner ring stirrups 8, so that the free end of the rotating section 602 rotates to a state where it contacts and abuts against the inner ring stirrups 8, and the inner support rod 6 provides auxiliary support for the inner ring stirrups 8. After all the adjustable inner support mechanisms are installed and fixed, the upper arc-shaped jig 3 is hoisted onto the lower arc-shaped jig 2, and the upper arc-shaped jig 3 is installed and fixed with screws. After all the upper arc-shaped jig 3s are installed and fixed, the remaining main reinforcing bars 4 are installed and positioned, and finally the subsequently installed main reinforcing bars 4 are welded and fixed to the inner ring stirrups 8, completing the welding of all the main reinforcing bars 4. After all the main reinforcing bars 4 and all the inner ring stirrups 8 are welded and fixed, the upper arc-shaped jig 3 is disassembled and removed from the gap between the main reinforcing bars 4. Then, the spiral reinforcing bars in the prior art are welded and fixed to obtain the steel cage. After the steel cage is manufactured, it is transported to the construction site and installed. Then, the rotating section 602 is rotated to make the clamping support of the rotating section 602 on the inner ring stirrups 8 disappear. Then, the entire adjustable inner support mechanism is taken out and recycled.

[0045] Example 2

[0046] The difference between Example 2 and Example 1 is as follows: Figure 4 As shown, in this embodiment, a clamping section 603 is threadedly connected to the end of the rotating section 602 away from the fixed section 601. When the length of the inner support rod 6 increases due to the rotation of the rotating section 602, the clamping section 603 can rotate synchronously with the rotating section 602. When the clamping section 603 contacts the inner side of the inner ring stirrup 8, there is no relative rotational relationship between the clamping section 603 and the inner ring stirrup 8, but the clamping section 603 will rotate relative to the rotating section 602. The clamping section 603 can clamp the inner ring stirrup 8 radially, thereby enabling the entire inner support rod 6 to provide auxiliary support for the inner ring stirrup 8. In this embodiment, by setting the clamping section 603, the wear caused to the inner ring stirrup 8 during the installation and fixing process of the inner support rod 6 can be effectively reduced.

[0047] Example 3

[0048] The difference between Example 3 and Example 1 is as follows: Figure 5 and Figure 6As shown, in this embodiment, a contact section 604 is rotatably connected to the end of the rotating section 602 away from the fixed section 601, and the end of the contact section 604 away from the rotating section 602 is provided with a slot 6041 that mates with the inner ring stirrup 8. When adjusting the length of the inner support rod 6, the length of the entire inner support rod 6 can be adjusted to be slightly smaller than the radius of the inner ring stirrup 8. Then, the adjustable inner support mechanism is placed at the position of the inner ring stirrup 8, and the rotating section 602 is rotated to increase the length of the inner support rod 6. At this time, the contact section 604 gradually contacts and abuts against the inner ring stirrup 8. Since the contact section 604 and the rotating section 602 are rotatably connected, during the rotation of the rotating section 602 relative to the fixed section 601, similar to Embodiment 2, the contact section 604 can only move closer to the inner ring stirrup 8 without rotating relative to the inner ring stirrup 8 until the inner ring stirrup 8 and the slot 6041 of the contact section 604 are engaged and pressed together. At this time, the adjustable inner support mechanism plays an auxiliary support role for the inner ring stirrup 8. It is not necessary to temporarily weld the free end of the rotating section 602 to the inner ring stirrup 8 as in Embodiment 1, which is cheaper and causes less damage to the main reinforcement 4.

[0049] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable reinforcing cage fabrication apparatus characterised in that: It includes a steel reinforcement pad beam and multiple sets of frame units that are detachably connected to the steel reinforcement pad beam. Each set of frame units includes multiple frame mechanisms that are spaced apart along the length of the steel reinforcement pad beam. Each frame mechanism is provided with a lower arc-shaped frame and an upper arc-shaped frame that is detachably connected to the lower arc-shaped frame. The upper arc-shaped frame and the lower arc-shaped frame are provided with mounting grooves for installing the main reinforcement bars. It also includes several adjustable internal support mechanisms arranged along the length of the steel reinforcement pad beam. The adjustable internal support mechanism includes a central connecting plate and multiple internal support rods arranged radially and equally along the central connecting plate. The length of the internal support rods is adjustable. The spacing between adjacent frame mechanisms is less than or equal to 4m, and the distance between adjacent adjustable internal support mechanisms is less than or equal to 2m.

2. The adjustable reinforcing cage fabrication apparatus of claim 1, wherein: A connecting mechanism is detachably connected between the upper arc-shaped frame and the lower arc-shaped frame.

3. The adjustable steel cage fabrication device according to claim 2, characterized in that: The connecting mechanism includes two connecting ear plates fixedly connected to the upper arc-shaped frame. The two connecting ear plates are located at both ends of the upper arc-shaped frame. Each connecting ear plate is provided with at least one through hole. The lower arc-shaped frame is provided with a number of lock holes that are equal to and correspond one-to-one with the number of through holes.

4. The adjustable reinforcing cage fabrication apparatus of claim 1, wherein: The upper arc-shaped frame is provided with lifting holes.

5. The adjustable reinforcing cage fabrication apparatus of claim 1, wherein: One end of the steel reinforcement pad beam is fixedly connected to a vertically arranged positioning base plate.

6. An adjustable reinforcing cage fabrication apparatus according to claim 5, wherein: The inner support rod includes a fixed section and a rotating section. One end of the fixed section is fixedly connected to the central connecting plate, and the other end is threadedly engaged with the rotating section.

7. An adjustable reinforcing cage fabrication apparatus according to claim 6, characterised in that: The rotating section is threadedly connected to an abutment section at the end furthest from the fixed section.

8. The adjustable reinforcing cage fabrication apparatus of claim 6, wherein: The rotating section is rotatably connected to a contact section at the end away from the fixed section, and the contact section at the end away from the rotating section is provided with a slot that mates with the inner ring stirrup.

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