Tunnel wall ring rib arc bending forming device

Abstract

The utility model discloses a tunnel wall ring rib arc bending forming device, and relates to the technical field of tunnel construction. Comprising a forming bracket; the multiple first driven forming wheels are arranged on one side face of the forming support at intervals in the circumferential direction of the first preset forming circle; the multiple second driven forming wheels are arranged on the same side face of the forming support at intervals in the circumferential direction of a second preset forming circle, the second preset forming circle and the first preset forming circle are concentric, and the second preset forming circle is larger than the first preset forming circle; a guide channel through which the arc-bent reinforcing steel bar can pass is formed between the first driven forming wheel and the second driven forming wheel; the multiple forming driving wheel sets are arranged between the guide channels in the circumferential direction of the first preset forming circle at intervals, and the forming driving wheel sets are arranged at the starting ends of the guide channels; and through the action of the forming driving wheel set, the reinforcing steel bars can be fed into the guide channel and move along the guide channel, so that the reinforcing steel bars are bent into an arc shape. The steel bar bending machine can automatically bend the steel bar into an arc shape in a hole.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel wall steel bar construction, in particular to a device for forming the arc of the circular steel bars of a tunnel wall. Background Technique

[0002] After the tunnel is excavated, shotcrete operation needs to be carried out first, and then the binding of tunnel steel bars is carried out. The tunnel wall steel bars are divided into longitudinal bars extending along the longitudinal direction of the tunnel and circular bars arranged along the cross-section of the tunnel. After the steel bars are completely arranged, the casting of the secondary lining reinforced concrete is carried out. Among them, in the construction link of circular bar binding, some tunnels have single-layer circular bars, and some tunnels have double-layer circular bars. The workload is large, which seriously restricts the construction progress of the secondary lining concrete of the tunnel. Summary of the Invention

[0003] The utility model provides a device for forming the arc of the circular steel bars of a tunnel wall, which can automatically form the steel bars into the required arc shape in the tunnel, so as to reduce manual labor and labor intensity, shorten the binding operation time of the circular bars, and thus improve the construction efficiency of the tunnel steel bar binding operation.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model provides a device for forming the arc of the circular steel bars of a tunnel wall, including: a forming bracket; a plurality of first driven forming wheels, and the plurality of first driven forming wheels are arranged at intervals along the circumference of a first preset forming circle on one side surface of the forming bracket; a plurality of second driven forming wheels, and the plurality of second driven forming wheels are arranged at intervals along the circumference of a second preset forming circle on the forming bracket. The second driven forming wheels are arranged on the same side as the first driven forming wheels. The second preset forming circle is concentric with the first preset forming circle, and the second preset forming circle is larger than the first preset forming circle. A guiding channel for the steel bars after arc bending to pass through is arranged between the first driven forming wheels and the second driven forming wheels; a plurality of forming drive wheel sets, and the plurality of forming drive wheel sets are arranged at intervals along the circumference of the first preset forming circle between the guiding channels, and a forming drive wheel set is arranged at the starting end of the guiding channel; wherein, through the action of the forming drive wheel sets, the steel bars can be sent into the guiding channel and move along the guiding channel to bend the steel bars into an arc shape.

[0006] The tunnel wall ring bar arc bending forming device provided by the utility model includes a forming support, a plurality of first driven forming wheels, a plurality of second driven forming wheels and a plurality of forming driving wheel sets. The plurality of first driven forming wheels are arranged at intervals along the circumferential direction of a first preset forming circle on one side surface of the forming support. The plurality of second driven forming wheels are arranged at intervals along the circumferential direction of a second preset forming circle on the forming support. The second driven forming wheels are arranged on the same side as the first driven forming wheels. Since the second preset forming circle and the first preset forming circle are concentrically arranged and the second preset forming circle is larger than the first preset forming circle, the second driven forming wheels are located outside the first driven forming wheels, and the guiding passage between the first driven forming wheels and the second driven forming wheels is an arc-shaped passage. At the same time, the plurality of forming driving wheel sets are arranged at intervals along the circumferential direction of the first preset forming circle between the guiding passages, and a forming driving wheel set is arranged at the starting end of the guiding passage.

[0007] During use, the forming support is erected in the tunnel and kept vertical. Then, the steel bar to be arc-bent and formed is fed into the forming driving wheel set located at the starting end of the guiding passage. The forming driving wheel set acts to drive the steel bar to move towards the gap between the first driven forming wheel and the second driven forming wheel, so as to drive the steel bar into the guiding passage. Since the plurality of forming driving wheel sets are arranged at intervals along the circumferential direction of the first preset forming circle between the guiding passages, through the cooperation of the plurality of forming driving wheel sets, the steel bar is driven to move along the guiding passage, thereby automatically bending the steel bar into an arc shape. Therefore, the utility model can automatically form the steel bar into the required arc shape in the tunnel, so as to reduce manual labor and labor intensity, shorten the binding operation time of the ring bar, and thus improve the construction efficiency of the tunnel steel bar binding operation.

[0008] In an optional embodiment of the present application, the forming support is of a circular ring structure, so as to facilitate the installation of the ring bar arc bending forming device on the tunnel trolley and facilitate the automatic feeding of the ring bar.

[0009] In an optional embodiment of the present application, the first preset forming circle is concentrically arranged with the forming support, so as to quickly send the ring bar after arc bending and forming to the binding station.

[0010] In an optional embodiment of the present application, along the circumferential direction of the forming support, the first driven forming wheels and the second driven forming wheels are arranged at intervals in an alternating manner, so as to facilitate the layout of the first driven forming wheels and the second driven forming wheels, and at the same time, the number of the first driven forming wheels and the second driven forming wheels can also be reduced.

[0011] In an optional embodiment of the present application, the first driven forming wheel includes: a first driven wheel shaft, one end of which is fixedly connected to the forming bracket; a first driven wheel body, which is rotatable along its own axis and is arranged at the other end of the first driven wheel shaft, so that the first driven forming wheel can provide guidance and limitation for the steel bars while reducing the resistance to the movement and forming of the steel bars.

[0012] In an optional embodiment of the present application, the second driven forming wheel includes: a second driven wheel shaft, one end of which is fixedly connected to the forming bracket; a second driven wheel body, which is rotatable along its own axis and is arranged at the other end of the second driven wheel shaft, so that the second driven forming wheel can provide guidance and limitation for the steel bars while reducing the resistance to the movement and forming of the steel bars.

[0013] In an optional embodiment of the present application, the second driven forming wheel also includes a telescopic drive; one end of the telescopic drive is fixedly connected to the forming bracket, and the other end of the telescopic drive is slidably engaged with the second driven wheel body, so that the second driven wheel body can rotate relative to the telescopic drive while the telescopic drive can drive the second driven wheel axle to move axially along the second driven wheel axle, so as to drive the second driven forming wheel to retract toward the forming bracket through the telescopic drive, thereby releasing the restriction on the outer side of the steel bar after arc bending, so as to facilitate the removal of the steel bar after arc bending from the forming device.

[0014] In an optional embodiment of the present application, a circular sliding groove is provided at one end of the second driven wheel body facing the forming bracket, and a corresponding end of the telescopic drive is clamped in the sliding groove, and the corresponding end of the telescopic drive can slide circumferentially along the sliding groove to avoid interference of the telescopic drive with the rotation of the second driven wheel body.

[0015] In an optional embodiment of the present application, the forming drive wheel group includes: a first forming drive wheel, which is arranged at an interval between two adjacent first driven forming wheels; a first rotation driver, which is transmission-connected to the first forming drive wheel, and the first rotation driver can drive the first forming drive wheel; a second forming drive wheel, which is arranged at an interval between two adjacent second driven forming wheels; a second rotation driver, which is transmission-connected to the second forming drive wheel, and the second rotation driver can drive the second forming drive wheel; wherein, the second forming drive wheel is arranged at an interval with the first forming drive wheel, and through the rotation of the first forming drive wheel and the second forming drive wheel, the steel bar can be driven to move along the guide channel in the guide channel, thereby ensuring that the forming device can automatically bend the steel bar into shape.

[0016] In an optional embodiment of the present application, a limiting convex is provided on the forming bracket. The limiting convex is arranged on the same side as the first driven forming wheel, and the limiting convex is located at the end of the guiding channel to prevent the steel bar from being driven by the forming driving wheel set to continue circular movement after the arc bending forming of the steel bar.

[0017] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0018] The tunnel wall ring bar arc bending forming device provided by the present utility model includes a forming bracket, a plurality of first driven forming wheels, a plurality of second driven forming wheels and a plurality of forming driving wheel sets. The plurality of first driven forming wheels are arranged at intervals along the circumference of a first preset forming circle on one side surface of the forming bracket. The plurality of second driven forming wheels are arranged at intervals along the circumference of a second preset forming circle on the forming bracket. The second driven forming wheels are arranged on the same side as the first driven forming wheels. Since the second preset forming circle and the first preset forming circle are concentrically arranged, and the second preset forming circle is larger than the first preset forming circle, the second driven forming wheels are located outside the first driven forming wheels. The guiding channel between the first driven forming wheels and the second driven forming wheels is an arc-shaped channel. At the same time, the plurality of forming driving wheel sets are arranged at intervals along the circumference of the first preset forming circle between the guiding channels, and a forming driving wheel set is arranged at the starting end of the guiding channel to drive the steel bar to move along the guiding channel through the cooperation of the plurality of forming driving wheel sets, so as to automatically bend the steel bar into an arc shape, and then automatically shape the steel bar into the required arc shape in the tunnel, so as to reduce manual labor and labor intensity, shorten the binding operation time of the ring bar, and thus improve the construction efficiency of the tunnel steel bar binding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] In the drawings:

[0021] Figure 1 is a three-dimensional structural schematic diagram of the tunnel wall ring bar arc bending forming device according to the embodiment of the present utility model;

[0022] Figure 2 is a left-view structural schematic diagram of the tunnel wall ring bar arc bending forming device according to the embodiment of the present utility model;

[0023] Figure 3 is Figure 2 a schematic diagram of the A-A cross-sectional structure of;

[0024] Figure 4 is Figure 2 the schematic diagram of the B-B surface structure;

[0025] Figure 5 is Figure 2 the schematic diagram of the C-C surface structure.

[0026] The labels in the attached drawings and the corresponding names of the components:

[0027] 210 - forming bracket, 211 - limiting convex, 220 - first driven forming wheel, 221 - first driven wheel shaft, 222 - first driven wheel body, 230 - second driven forming wheel, 231 - second driven wheel shaft, 232 - second driven wheel body, 233 - telescopic driver, 234 - sliding card slot, 240 - forming drive wheel set, 241 - first forming drive wheel, 242 - first rotary driver, 243 - second forming drive wheel, 244 - second rotary driver. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0029] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0030] At the same time, the terms "set", "provided with", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Embodiment

[0032] Combined with Figure 1 and Figure 2, this embodiment provides a tunnel wall hoop arc bending forming device, including: a forming bracket 210; a plurality of first driven forming wheels 220, the plurality of first driven forming wheels 220 are circumferentially spaced along a first preset forming circle on one side of the forming bracket 210; a plurality of second driven forming wheels 230, the plurality of second driven forming wheels 230 are circumferentially spaced along a second preset forming circle on the forming bracket 210, the second driven forming wheels 230 are arranged on the same side as the first driven forming wheels 220, the second preset forming circle is concentric with the first preset forming circle, the second preset forming circle is larger than the first preset forming circle, and a guiding channel for the bent steel bar to pass through is arranged between the first driven forming wheels 220 and the second driven forming wheels 230; a plurality of forming drive wheel sets 240, the plurality of forming drive wheel sets 240 are circumferentially spaced along the first preset forming circle between the guiding channels, and the forming drive wheel sets 240 are arranged at the starting end of the guiding channel; wherein, through the action of the forming drive wheel sets 240, the steel bar can be fed into the guiding channel and move along the guiding channel to bend the steel bar into an arc shape.

[0033] Combined again Figure 1 and Figure 2 , in this embodiment, the forming bracket 210 is of an annular structure, so as to facilitate the installation of the hoop arc bending forming device on the tunnel trolley and facilitate the automatic feeding of the hoop. Of course, the forming bracket 210 can also be a structure with an annular plate-like structure, or can be a polygon assembled by multiple components, as long as the forming bracket 210 can cover the first preset forming circle and the second preset forming circle.

[0034] For the first preset forming circle and the second preset forming circle, they are virtual circles. In this embodiment, the first preset forming circle is the circle where the center connection lines of the plurality of first driven forming wheels 220 are located, and the second preset forming circle is the circle where the center connection lines of the plurality of second driven forming wheels are located. Among them, the first preset forming circle is concentric with the forming bracket 210 to quickly send the hoop after arc bending forming to the binding station.

[0035] In addition, a limiting stop convex 211 is arranged on the forming bracket 210, the limiting stop convex 211 is arranged on the same side as the first driven forming wheels 220, and the limiting stop convex 211 is located at the end of the guiding channel to prevent the steel bar from being driven by the forming drive wheel sets 240 to continue circular movement after arc bending forming.

[0036] Combined again Figure 2, along the circumference of the forming bracket 210, the first driven forming wheel 220 and the second driven forming wheel 230 are arranged at intervals in an alternating manner, which facilitates the arrangement of the first driven forming wheel 220 and the second driven forming wheel 230, and at the same time can also reduce the number of the first driven forming wheel 220 and the second driven forming wheel 230. It can be understood that for the number of the first driven forming wheel 220 and the second driven forming wheel 230, it is determined according to the diameters of the first preset forming circle and the second preset forming circle and the diameter of the arc-shaped steel bar after arc bending forming. It only needs to ensure that during the movement of the steel bar, the first driven forming wheel 220 can push the steel bar towards the second driven forming wheel, and the second driven forming wheel 230 can push the steel bar towards the first driven forming wheel 220, so as to prevent the steel bar from moving outwards between the first driven forming wheel 220 and the second driven forming wheel.

[0037] Combined with Figure 3 , in this embodiment, the first driven forming wheel 220 includes: a first driven wheel shaft 221, one end of the first driven wheel shaft 221 is fixedly connected to the forming bracket 210; a first driven wheel body 222, the first driven wheel body 222 is rotatably arranged at the other end of the first driven wheel shaft 221 along its own axial direction, so that while the first driven forming wheel 220 can provide guidance and limit for the steel bar, it can reduce the resistance of the steel bar movement and forming.

[0038] Similarly, combined with Figure 4 , the second driven forming wheel 230 includes: a second driven wheel shaft 231, one end of the second driven wheel shaft 231 is fixedly connected to the forming bracket 210; a second driven wheel body 232, the second driven wheel body 232 is rotatably arranged at the other end of the second driven wheel shaft 231 along its own axial direction, so that while the second driven forming wheel 230 can provide guidance and limit for the steel bar, it can reduce the resistance of the steel bar movement and forming.

[0039] On this basis, the second driven forming wheel 230 further includes a telescopic driver 233; one end of the telescopic driver 233 is fixedly connected to the forming bracket 210, and the other end of the telescopic driver 233 is slidably clamped with the second driven wheel body 232, so that while the second driven wheel body 232 can rotate relative to the telescopic driver 233, the telescopic driver 233 can drive the second driven wheel shaft 231 to move along the axial direction of the second driven wheel shaft 231, so as to drive the second driven forming wheel 230 to retract towards the forming bracket 210 through the telescopic driver 233, thereby releasing the restriction on the outer side of the steel bar after arc bending forming, so as to facilitate the removal of the arc-bent steel bar from the forming device.

[0040] Combined again with Figure 4Specifically, the second driven wheel body 232 is provided with an annular sliding groove 234 at one end facing the forming bracket 210, and the corresponding end of the telescopic driver 233 is clamped in the sliding groove 234, and the corresponding end of the telescopic driver 233 can slide circumferentially along the sliding groove 234 to avoid the telescopic driver 233 interfering with the rotation of the second driven wheel body 232. It can be understood that the telescopic driver 233 only needs to be able to drive the second driven wheel body 232 to move linearly along the second driven wheel shaft 231, and can be an electric push rod, a pneumatic cylinder, etc. In this embodiment, a hydraulic cylinder is used to ensure that sufficient torque can be output in a sufficiently small volume.

[0041] Combination Figure 5 Specifically, the forming drive wheel group 240 includes: a first forming drive wheel 241, which is arranged at intervals between two adjacent first driven forming wheels 220; a first rotation driver 242, which is transmission-connected to the first forming drive wheel 241, and the first rotation driver 242 can drive the first forming drive wheel 241; a second forming drive wheel 243, which is transmission-connected to the second forming drive wheel 230; a second rotation driver 244, which is transmission-connected to the second forming drive wheel 243, and the second rotation driver 244 can drive the second forming drive wheel 243; wherein the second forming drive wheel 243 is arranged at intervals from the first forming drive wheel 241, and through the rotation of the first forming drive wheel 241 and the second forming drive wheel 243, the steel bar can be driven to move along the guide channel in the guide channel, thereby ensuring that the forming device can automatically bend the steel bar into shape.

[0042] The first rotary driver 242 and the second rotary driver 244 are usually provided with a stepper motor or a torque motor to simplify the structure of the device. The first forming drive wheel 241 and the second forming drive wheel 243 mainly drive the steel bar to move circumferentially by friction, and are also arranged alternately.

[0043] In summary, the tunnel wall hoop arc bending forming device provided in this embodiment includes a forming bracket 210, a plurality of first driven forming wheels 220, a plurality of second driven forming wheels 230, and a plurality of forming drive wheel sets 240. The plurality of first driven forming wheels 220 are arranged at intervals along the circumferential direction of a first preset forming circle on one side surface of the forming bracket 210. The plurality of second driven forming wheels 230 are arranged at intervals along the circumferential direction of a second preset forming circle on the forming bracket 210. The second driven forming wheels 230 are arranged on the same side as the first driven forming wheels 220. Since the second preset forming circle and the first preset forming circle are concentrically arranged and the second preset forming circle is larger than the first preset forming circle, the second driven forming wheels 230 are located outside the first driven forming wheels 220, and the guiding passage between the first driven forming wheels 220 and the second driven forming wheels 230 is an arc-shaped passage. At the same time, the plurality of forming drive wheel sets 240 are arranged at intervals along the circumferential direction of the first preset forming circle between the guiding passages, and a forming drive wheel set 240 is arranged at the starting end of the guiding passage.

[0044] During use, the forming bracket 210 is installed at the rear end of the tunnel trolley to be erected in the tunnel and kept vertical. Then, the steel bar to be arc-bent is fed into the forming drive wheel set 240 located at the starting end of the guiding passage. The forming drive wheel set 240 acts to drive the steel bar to move towards the gap between the first driven forming wheel 220 and the second driven forming wheel 230, so as to drive the steel bar into the guiding passage. Since the plurality of forming drive wheel sets 240 are arranged at intervals along the circumferential direction of the first preset forming circle between the guiding passages, through the cooperation of the plurality of forming drive wheel sets 240, the steel bar is driven to move along the guiding passage, thereby automatically bending the steel bar into an arc shape.

[0045] In summary, this embodiment can automatically form the steel bar into the required arc shape in the tunnel, so as to reduce manual labor and labor intensity, shorten the binding operation time of the hoop, and thus improve the construction efficiency of the tunnel steel bar binding operation.

[0046] The specific implementation manners described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A forming device for the arc bending of the circular reinforcement bars of a tunnel wall, characterized in that, Comprising: A forming bracket (210); A plurality of first driven forming wheels (220), which are arranged at intervals along the circumferential direction of a first preset forming circle on one side surface of the forming bracket (210); A plurality of second driven forming wheels (230), which are arranged at intervals along the circumferential direction of a second preset forming circle on the forming bracket (210), the second driven forming wheels (230) are arranged on the same side as the first driven forming wheels (220), the second preset forming circle is concentric with the first preset forming circle, the second preset forming circle is larger than the first preset forming circle, and a guiding channel capable of allowing the steel bar after arc bending to pass through is arranged between the first driven forming wheels (220) and the second driven forming wheels (230); A plurality of forming drive wheel sets (240), which are arranged at intervals along the circumferential direction of the first preset forming circle between the guiding channels, and the forming drive wheel sets (240) are arranged at the starting end of the guiding channel; Wherein, through the action of the forming drive wheel sets (240), the steel bar can be fed into the guiding channel and move along the guiding channel to bend the steel bar into an arc shape.

2. The tunnel wall hoop bar arc bending and forming device according to claim 1, characterized in that The forming bracket (210) is of an annular structure.

3. The tunnel wall ring bar arc bending forming device according to claim 2, characterized in that, The first preset forming circle is concentric with the forming bracket (210).

4. The tunnel wall hoop bar arc bending forming device according to claim 3, characterized in that, Along the circumferential direction of the forming bracket (210), the first driven forming wheels (220) and the second driven forming wheels (230) are arranged at intervals in an alternating manner.

5. The device for forming the arc bend of the circular reinforcement bars of the tunnel wall according to claim 1, wherein, The first driven forming wheel (220) includes: A first driven wheel shaft (221), one end of the first driven wheel shaft (221) is fixedly connected to the forming bracket (210); A first driven wheel body (222), the first driven wheel body (222) is rotatably arranged at the other end of the first driven wheel shaft (221) along its own axial direction.

6. The tunnel wall hoop bar arc bending and forming device according to claim 1, characterized in that, The second driven forming wheel (230) includes: A second driven wheel shaft (231), one end of the second driven wheel shaft (231) is fixedly connected to the forming bracket (210); A second driven wheel body (232), the second driven wheel body (232) is rotatably arranged at the other end of the second driven wheel shaft (231) along its own axial direction.

7. The tunnel wall hoop bar arc bending forming device according to claim 6, wherein The second driven forming wheel (230) further includes a telescopic driver (233); One end of the telescopic driver (233) is fixedly connected to the forming bracket (210), and the other end of the telescopic driver (233) is slidably clamped with the second driven wheel body (232), so that while the second driven wheel body (232) can rotate relative to the telescopic driver (233), the telescopic driver (233) can drive the second driven wheel body (232) to move along the axial direction of the second driven wheel shaft (231).

8. The tunnel wall hoop bar arc bending forming device according to claim 7, characterized in that, One end of the second driven wheel body (232) facing the forming support (210) is provided with an annular sliding groove (234), and a corresponding end of the telescopic driver (233) is clamped in the sliding groove (234), and the corresponding end of the telescopic driver (233) can slide circumferentially along the sliding groove (234).

9. The tunnel wall hoop bar arc bending forming device according to claim 1, characterized in that, The forming drive wheel set (240) includes: A first forming drive wheel (241), the first forming drive wheel (241) is arranged at intervals between two adjacent first driven forming wheels (220); A first rotation driver (242), the first rotation driver (242) is in transmission connection with the first forming drive wheel (241), and the first rotation driver (242) can drive the first forming drive wheel (241); A second forming drive wheel (243), the second forming drive wheel (243) is arranged at intervals between two adjacent second driven forming wheels (230); A second rotation driver (244), the second rotation driver (244) is in transmission connection with the second forming drive wheel (243), and the second rotation driver (244) can drive the second forming drive wheel (243); Wherein, the second forming drive wheel (243) is arranged at intervals from the first forming drive wheel (241), and through the rotation of the first forming drive wheel (241) and the second forming drive wheel (243), the steel bar can be driven to move along the guiding channel in the guiding channel.

10. The tunnel wall ring bar arc bending and forming device according to any one of claims 1 to 9, characterized in that, A limiting convex block (211) is arranged on the forming support (210), the limiting convex block (211) is arranged on the same side as the first driven forming wheel (220), and the limiting convex block (211) is located at the end of the guiding channel.

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