Rapid positioning device and method for ballastless track steel formwork

Abstract

The invention relates to the technical field of rail transit, and discloses a quick positioning device and method for a ballastless track steel formwork. The quick positioning device for the ballastless track steel formwork comprises a base, a main frame body and a formwork contact mechanism, the main frame body is arranged on the base in a sliding manner; the template contact mechanism comprises a supporting frame body, two transverse sliding bodies, a longitudinal distance adjusting assembly, a transverse distance adjusting assembly and an inclination adjusting assembly. Through the compact design of the main frame body, the base and the template contact mechanism, the size of the positioning device is reduced so as to adapt to narrow construction spaces such as tunnels and bridge guardrails; meanwhile, the synchronous high-precision adjusting function of the transverse distance, the longitudinal distance and the inclination angle is integrated, the problem that in the prior art, installation is limited due to the huge structure is solved, the defect of positioning deviation caused by the single adjusting function is overcome, and rapid, accurate and stable positioning of the steel formwork under the complex working condition is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation, and more specifically, to a device and method for quickly positioning a ballastless track steel template. Background Art

[0002] Ballastless track is a modern railway track structure, the core feature of which is to replace the traditional crushed stone ballast layer with a reinforced concrete monolithic roadbed. It firmly fixes the rails, fasteners and sleepers (or prefabricated track slabs) on the concrete (or asphalt concrete) foundation cast on site or prefabricated in the factory, forming a continuous, stable, high-precision rigid track structure. This design greatly improves the smoothness, stability and durability of the track, significantly reduces the workload of later maintenance, and is particularly suitable for high-speed railways, urban rail transit and other line types that have extremely high requirements on track geometry. It is one of the key technologies to achieve high-speed, stable and safe operation of trains.

[0003] During the casting process of ballastless track, it is necessary to first install multiple steel templates in a preset manner at the casting position to form a specific casting mold, and then perform the concrete casting operation. In the prior art, for example, a positioning device is disclosed in the announcement number CN116837674A, which realizes the positioning of the steel template through a ray adjustment part, a template docking device and a support device, but the overall structure of the device is huge, and it is difficult to install and operate in narrow spaces such as viaducts or tunnels, and its applicability is limited. Although the announcement number CN119243533A designs a compact mounting seat structure to adapt to narrow spaces, its adjustment function is single, and it is impossible to achieve multi-directional precise adjustment of the steel template (such as horizontal / longitudinal spacing and inclination adjustment), resulting in insufficient positioning accuracy. Therefore, there is an urgent need for a ballastless track steel template positioning device that can adapt to narrow construction spaces and achieve multi-dimensional precise adjustment, so as to solve the technical problem that spatial adaptability and adjustment accuracy cannot be taken into account in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a ballastless track steel formwork rapid positioning device and method to solve the above-mentioned technical problems.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a ballastless track steel template rapid positioning device, comprising: Base, main frame and template contact mechanism; The main frame is slidably arranged on the base; The template contact mechanism comprises: a support frame, two lateral sliding bodies, a longitudinal spacing adjustment component, a lateral spacing adjustment component and an inclination adjustment component; The support frame is rotatably arranged on one side of the main frame. Two transverse sliding bodies slide symmetrically on the support frame, and two contact bodies are symmetrically distributed up and down on the transverse sliding body. The longitudinal spacing adjustment component includes a driving part arranged on the main frame and two transmission parts that are in transmission connection with the driving part in cooperation. The two transmission parts are correspondingly arranged on the transverse sliding body and are in transmission connection with the two contact bodies at corresponding positions. Driven by the driving part, the two transmission parts adjust the spacing between the two contact bodies with the same displacement adjustment amount. The transverse spacing adjustment component is arranged on the support frame and is used to adjust the spacing between the two transverse sliding bodies. The inclination adjustment component is arranged on the support frame and is used to adjust the inclination angle of the support frame.

[0006] Preferably, the contact body includes an L-shaped contact plate and a connecting plate detachably connected to the contact plate. Protective pads are arranged on two right-angle sides of the contact plate, and the end of the connecting plate slides with the transverse sliding body.

[0007] Preferably, the transmission part is a first lead screw rotatably arranged on the transverse sliding body. The thread directions at the upper and lower ends of the first lead screw are opposite, and the corresponding two contact bodies are threadedly connected to the upper and lower ends of the first lead screw.

[0008] Preferably, the driving part includes a moving seat slidably arranged on the support frame, a driving pulley rotatably arranged on the moving seat, and two driven pulleys fixed to the first lead screw. The driving pulley is in transmission connection with the two driven pulleys through a transmission belt, and a return spring is connected between the moving seat and the support frame.

[0009] Preferably, an adjusting knob is rotatably arranged on the moving seat, a driving gear is fixed on the adjusting knob, a driven gear meshing with the driving gear is fixed on the driving pulley, and the diameter of the driven gear is larger than that of the driving gear.

[0010] Preferably, the inclination adjustment component includes a rotating rod rotatably arranged on the main frame, a worm wheel fixed to the rotating rod, a worm meshing with the worm wheel, and a spirit level fixed to the rotating rod. The end of the rotating rod is fixed to the rotating end of the support frame.

[0011] Preferably, the transverse spacing adjustment component includes a second lead screw with double reverse threads. The two transverse sliding bodies are respectively threadedly connected to both ends of the second lead screw, and adjusting knobs are arranged at both ends of the second lead screw.

[0012] Preferably, the protective pad is a rubber pad with serrated surfaces, and the connecting plate and the contact plate are connected by bolts.

[0013] Preferably, the base includes a rectangular frame and a slide rail provided at the top of the rectangular frame, and a slide rail groove adapted to the slide rail is provided at the bottom of the main frame body.

[0014] A method for rapid positioning of steel formwork includes the following operation steps: S100. Fix the base at a preset position; S200. Adjust the distance between two lateral sliding bodies through a lateral distance adjustment component to be adapted to the notch of the steel formwork; S300. Synchronously adjust the longitudinal distance between two contact bodies on the same lateral sliding body through a longitudinal distance adjustment component; S400. Make the notch of the steel formwork contact with the contact bodies; S500. Adjust the inclination angle of the support frame body through an inclination adjustment component until the spirit level indicates horizontal; S600. Slide the main frame body to finely adjust the position of the steel formwork, and disassemble the device after fixing the steel formwork.

[0015] The beneficial effects of the present invention are as follows: Through the compact design of the main frame body, the base and the formwork contact mechanism of the present invention, the volume of the positioning device is reduced to adapt to narrow construction spaces such as tunnels and bridge guardrails; at the same time, the synchronous high-precision adjustment functions of the lateral distance, longitudinal distance and inclination angle are integrated, overcoming the problems of limited installation caused by the large structure in the prior art and the positioning deviation defects caused by the single adjustment function, enabling it to flexibly adapt to different types of steel formwork and realizing the rapid, accurate and stable positioning of the steel formwork under complex working conditions. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a ballastless track steel formwork rapid positioning device provided by the present invention during use; Figure 2 is a schematic structural diagram of a connection between a ballastless track steel formwork rapid positioning device provided by the present invention and a steel formwork; Figure 3 is a schematic structural diagram of a ballastless track steel formwork rapid positioning device provided by the present invention; Figure 4 is a schematic structural diagram of a formwork contact mechanism in a ballastless track steel formwork rapid positioning device provided by the present invention; Figure 5 is a sectional view of a driving part in a ballastless track steel formwork rapid positioning device provided by the present invention; Figure 6 is a schematic structural diagram between a lateral adjustment component and a support frame body in a ballastless track steel formwork rapid positioning device provided by the present invention; Figure 7It is a schematic structural diagram of an inclination adjustment component in a ballastless track steel formwork rapid positioning device provided by the present invention.

[0017] In the figure: 1, base; 2, main frame body; 3, formwork contact mechanism; 31, support frame body; 32, transverse sliding body; 33, longitudinal spacing adjustment component; 331, first lead screw; 332, moving seat; 333, driving pulley; 334, driven pulley; 335, return spring; 336, adjusting knob; 337, driving gear; 338, driven gear; 339, transmission belt; 34, transverse spacing adjustment component; 341, second lead screw; 342, adjusting knob; 35, inclination adjustment component; 351, rotating rod; 352, worm gear; 353, worm; 354, level gauge; 36, contact body; 361, contact plate; 362, connecting plate; 4, steel formwork. Specific embodiments

[0018] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and the functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0019] Embodiment 1 Please refer to Figures 1 to 3 , a ballastless track steel formwork rapid positioning device, including: a base 1, a main frame body 2, and a formwork contact mechanism 3. Among them, the base 1 is a rectangular frame welded by four square steel pipes, and is provided with a plurality of through holes thereon. During use, it is used to connect with the studs on the placement surface, and then nuts are threadedly connected with the studs, so that the base 1 can be fixed on the placement surface. And on the left and right sides of the top of the base 1, there are slide rails, and the left and right sides of the bottom of the main frame body 2 are respectively matched with the two slide rails for sliding, so that the main frame body 2 can slide back and forth along the top of the base 1 to realize the position adjustment in the front and back directions.

[0020] The template contact mechanism 3 includes: a support frame body 31, two lateral sliding bodies 32, a longitudinal spacing adjustment component 33, a lateral spacing adjustment component 34, and an inclination adjustment component 35. The support frame body 31 is horizontally rotatably arranged on one side of the main frame body 2. The two lateral sliding bodies 32 slide symmetrically left and right on the support frame body 31. Two contact bodies 36 are symmetrically distributed up and down on the lateral sliding body 32. The contact body 36 is used to contact the outer slot of the steel formwork 4 to establish a connection between the positioning device and the steel formwork 4. The longitudinal spacing adjustment component 33 includes a driving part arranged on the main frame body 2 and two transmission parts that are in transmission connection with the driving part in a matching manner. The two transmission parts are correspondingly arranged on the lateral sliding body 32 and are in transmission connection with the two contact bodies 36 at the corresponding positions. Driven by the driving part, the two transmission parts adjust the spacing between the two contact bodies 36 with the same displacement adjustment amount. The lateral spacing adjustment component 34 is arranged on the support frame body 31 and is used to adjust the spacing between the two lateral sliding bodies 32. The inclination adjustment component 35 is arranged on the support frame body 31 and is used to adjust the inclination angle of the support frame body 31.

[0021] When the above positioning device is in use, first fix the positioning device at a preset position. Then, according to the size of the rectangular slot on the outer side of the steel formwork 4, initially adjust the spacing between the two lateral sliding bodies 32 through the lateral spacing adjustment component 34 to match the spacing between the vertical planes of the two rectangular slots. And adjust the spacing between the two contact bodies 36 located on the same lateral sliding body 32 through the longitudinal spacing adjustment component 33 to match the height of the rectangular slot. When adjusting longitudinally, by operating the driving part, it can drive the two transmission parts to act synchronously, so that the two transmission parts adjust the spacing between the two contact bodies 36 with the same displacement adjustment amount, thus realizing synchronous and high-precision adjustment of the spacing between the two groups of contact bodies 36. After that, make the rectangular slot on the outer side of the steel formwork 4 contact the four contact bodies 36, lift the steel formwork 4 off the ground. Then, the position of the contact bodies 36 can be further adjusted through the spacing adjustment component or the longitudinal adjustment component to make the contact between the contact bodies 36 and the rectangular slot closer, so as to improve the connection stability with the steel formwork 4. Subsequently, by pushing the main frame body 2 to move horizontally on the base 1, the front and rear positions of the steel formwork 4 can be adjusted. If the steel formwork 4 is not in a standard horizontal posture, the inclination angle of the steel formwork 4 can be further adjusted through the inclination adjustment component 35. Through the above operations, the steel formwork 4 can be adjusted to a standard posture. Finally, use the fixing structure to fix the steel formwork 4 to the preset installation position. At this time, the steel formwork 4 has been locked by the positioning device, and its position will not shift when it is fixed, ensuring the installation accuracy of the steel formwork 4 without repeated adjustments. After fixing, the positioning device can be disassembled from the steel formwork 4, and the above operations can be repeated to install the next steel formwork 4. By using this positioning device, the installation difficulty of the steel formwork 4 is greatly reduced, and through a multi-directional adjustment mechanism, it can flexibly adapt to different types of steel formworks 4.

[0022] Please refer to Figures 3 to 4 For improving the stability after the contact body 36 is connected to the steel formwork 4, the specific structure of the contact body 36 is defined in the present invention. Specifically, the contact body 36 includes an L-shaped contact plate 361 and a connecting plate 362 detachably connected to the contact plate 361. The two right-angle sides of the L-shaped plate can exactly fit the right-angle notches of the rectangular notch of the steel formwork 4, enabling the contact body 36 and the steel formwork 4 to be in close contact and improving the stability of their contact. Protective pads are provided on the two right-angle sides of the contact plate 361. The protective pads can be rubber pads with serrations on the surface, which can not only increase the friction with the steel formwork 4 but also reduce wear. The end of the connecting plate 362 slides on the transverse sliding body 32. By setting the detachable connection mode between the contact plate 361 and the connecting plate 362, it is convenient to replace the contact plate 361 to meet different usage requirements.

[0023] Please refer to Figures 3 to 5 For realizing the function of quickly adjusting the spacing of the contact body 36, an implementation manner of a longitudinal spacing adjustment assembly 33 is disclosed in the present invention. Specifically, the transmission part is a first lead screw 331 rotatably arranged on the transverse sliding body 32. The thread directions at the upper and lower ends of the first lead screw 331 are opposite. The corresponding two contact bodies 36 are threadedly connected to the upper and lower ends of the first lead screw 331. The driving part includes a moving seat 332 slidably arranged on the support frame 31, a driving pulley 333 rotatably arranged on the moving seat 332, and two driven pulleys 334 fixed to the first lead screw 331. The driving pulley 333 is in transmission connection with the two driven pulleys 334 through a transmission belt 339. A return spring 335 is connected between the moving seat 332 and the support frame 31.

[0024] When the above longitudinal spacing assembly is in use, by rotating the driving pulley 333, the two driven pulleys 334 can be driven to rotate synchronously, and then the two first lead screws 331 are driven to rotate. Since the thread directions at the upper and lower ends of the first lead screw 331 are opposite and the contact body 36 is simultaneously limited by the sliding of the transverse sliding body 32, under the rotation of the first lead screw 331, the two contact bodies 36 can slide synchronously towards each other, and the spacing between the two contact bodies 36 changes. When the spacing is adjusted to the required position, the rotation of the driving pulley 333 is stopped, and the first lead screw 331 stops rotating. Under the locking action of the thread thereon, the two contact bodies 36 can be kept fixed. In this way, the function of adjusting the synchronous adjustment amount of the spacing between the two groups of contact bodies 36 is realized, without the need for separate adjustment. The adjustment operation is more convenient and the adjustment accuracy is higher.

[0025] Please refer to Figures 4 to 5, in order to improve the adjustment accuracy of the vertical spacing and reduce the adjustment difficulty, making it more convenient and labor-saving during adjustment, the present invention further improves the above solution, specifically as follows: An adjustment knob 336 is rotatably mounted on the moving seat 332, a driving gear 337 is fixed on the adjustment knob 336, a driven gear 338 meshing with the driving gear 337 is fixed on the driving pulley 333, and the diameter of the driven gear 338 is larger than that of the driving gear 337.

[0026] During adjustment, by rotating the adjustment knob 336, the driving gear 337 can drive the driven gear 338 to rotate. Since the diameter of the driving gear 337 is smaller, a rotational speed difference is formed with the driving gear 337, causing the driven gear 338 to drive the driving pulley 333 to rotate at a low speed, so that the first lead screw 331 can rotate at a low speed, shortening its adjustment displacement amount to improve the adjustment accuracy.

[0027] Please refer to Figure 3 and Figure 7 , the inclination adjustment assembly 35 includes a rotating rod 351 rotatably mounted on the main frame 2, a worm gear 352 fixed on the rotating rod 351, a worm 353 meshing with the worm gear 352, and a spirit level 354 fixed on the rotating rod 351. One end of the rotating rod 351 is fixedly connected to the rotating end of the support frame 31, and the other end extends laterally from one side beam of the main frame 2 to the outside of the other side beam. The worm gear 352 is fixedly sleeved outside the rotating rod 351 and hidden inside the beam. The worm 353 rotates laterally inside the beam of the main frame 2 and is perpendicular to the rotating rod 351 in the horizontal direction. The spirit level 354 is fixed at the end of the rotating rod 351 away from the support frame 31, just located outside the main frame 2, and is used to reflect the current horizontal state of the support frame 31, facilitating the staff to judge whether to adjust the steel formwork 4.

[0028] When the staff finds that the spirit level 354 is not in the standard horizontal position, it means that the steel formwork 4 is not in the standard horizontal posture at this time, and then the inclination adjustment assembly 35 needs to be adjusted accordingly. During adjustment, by rotating the worm 353, it drives the worm gear 352 and the rotating rod 351 to rotate together, so that the support frame 31 and the steel formwork 4 rotate together until the spirit level 354 is in the standard horizontal position, and then the rotation of the worm 353 can be stopped. Under the locking action of the worm 353, the support frame 31 and the steel formwork 4 can be kept in a static state.

[0029] Please refer to Figure 3 and Figure 6, the lateral spacing adjustment assembly 34 includes a second lead screw 341 rotatably mounted on the support frame 31. The thread directions at both ends of the second lead screw 341 are opposite. Adjusting knobs 342 are fixed to both ends of the second lead screw 341. By rotating the adjusting knobs 342, the second lead screw 341 can drive two lateral sliding bodies 32 to slide horizontally towards each other on the support frame 31. At the same time, under the elastic force of the return spring 335, the moving seat 332 can be driven to linearly slide along the top of the main frame 2 synchronously, so as to ensure that the transmission belt 339 is always in a taut state between the driving pulley 333 and the two driven pulleys 334, enabling the longitudinal spacing adjustment assembly 33 to be used normally.

[0030] Embodiment 2 In addition, the present invention also provides a method for quickly positioning the ballastless track steel formwork using the above positioning device, including the following operating steps: S100. Fix the base 1 at a preset position. The operator fastens the mounting plate of the base 1 to the preset work station on the tunnel sidewall or bridge guardrail through anchor bolts, ensuring that the base slide rail 11 is parallel to the installation direction of the steel formwork 4; S200. Adjust the spacing between the two lateral sliding bodies 32 through the lateral spacing adjustment assembly 34. Rotate the lead screw handwheel 341 of the lateral spacing adjustment assembly 34 to drive the bidirectional lead screw 342 to drive the two lateral sliding bodies 32 to slide synchronously in opposite directions along the lateral chute 21 of the main frame 2. Observe the scale of the ruler to make the spacing accurately match the width of the notch of the steel formwork 4; S300. Synchronously adjust the longitudinal spacing of the contact bodies 36 through the longitudinal spacing adjustment assembly 33. Rotate the handwheel 331 to link the transmission belt 334, driving the two sets of reverse lead screws 331a on the same lateral sliding body 32 to rotate synchronously, so that the two contact bodies 36 move towards or away from each other along the longitudinal guide rail 322 to a predetermined spacing; S400. Make the notch of the steel formwork 4 contact the contact bodies 36. Align the notch of the steel formwork 4 with the adjusted contact bodies 36, and push the steel formwork 4 so that the inner wall of its notch is closely attached to the rubber protection pads of the contact bodies 36; S500. Adjust the inclination angle of the support frame 31 through the inclination adjustment assembly 35. Observe the level 354 on the top of the support frame 31. If it shows inclination, rotate the worm handle 351 to drive the worm wheel 352, driving the support frame rotating shaft 31a to rotate until the bubble in the level 354 is centered, and use the self-locking characteristic of the worm and worm wheel to fix the inclination angle.

[0031] S600. Slide the main frame 2 to finely adjust and disassemble the device. Loosen the locking bolt 11a of the base 1, slide the main frame 2 along the slide rail 11 to drive the steel formwork 4 to perform position fine adjustment; after fixing the steel formwork 4, pour concrete, and after initial setting, pull out the quick-release pin 362a of the contact body 36 to remove the device.

[0032] The above-described embodiments of the specific implementation manner have been described, but the present embodiment is not limited to the above specific implementation manner. The above specific implementation manner is merely illustrative rather than restrictive. Under the inspiration of the present embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of the present embodiment.

Claims

1. A rapid positioning device for ballastless track steel formwork, characterized in that Comprising: A base, a main frame body, and a template contact mechanism; The main frame body is slidably disposed on the base; The template contact mechanism includes: a support frame body, two lateral sliding bodies, a longitudinal spacing adjustment component, a lateral spacing adjustment component, and an inclination adjustment component; The support frame body is rotatably disposed on one side of the main frame body. The two lateral sliding bodies symmetrically slide on the support frame body, and two contact bodies symmetrically distributed up and down are provided on the lateral sliding bodies; The longitudinal spacing adjustment component includes a driving part disposed on the main frame body and two transmission parts in transmission connection with the driving part in a cooperative manner. The two transmission parts are correspondingly disposed on the lateral sliding bodies and are in transmission connection with the two contact bodies at corresponding positions; driven by the driving part, the two transmission parts adjust the spacing between the two contact bodies with the same displacement adjustment amount; The lateral spacing adjustment component is disposed on the support frame body for adjusting the spacing between the two lateral sliding bodies; The inclination adjustment component is disposed on the support frame body for adjusting the inclination angle of the support frame body.

2. The quick positioning device for ballastless track steel formwork according to claim 1, characterized in that, The contact body includes an L-shaped contact plate and a connecting plate detachably connected to the contact plate. Protective pads are provided on two right-angle side surfaces of the contact plate, and the end of the connecting plate slides on the lateral sliding body.

3. The quick positioning device for ballastless track steel formwork according to claim 1, characterized in that, The transmission part is a first lead screw rotatably disposed on the lateral sliding body. The thread directions at the upper and lower ends of the first lead screw are opposite, and the two corresponding contact bodies are threadedly connected to the upper and lower ends of the first lead screw.

4. The quick positioning device for the ballastless track steel formwork according to claim 3, characterized in that, The driving part includes a moving seat slidably disposed on the support frame body, a driving pulley rotatably disposed on the moving seat, and two driven pulleys fixed to the first lead screw. The driving pulley is in transmission connection with the two driven pulleys through a transmission belt, and a return spring is connected between the moving seat and the support frame body.

5. The quick positioning device for ballastless track steel formwork according to claim 4, characterized in that, An adjustment knob is rotatably disposed on the moving seat. A driving gear is fixed to the adjustment knob, and a driven gear meshing with the driving gear is fixed to the driving pulley. The diameter of the driven gear is larger than that of the driving gear.

6. The quick positioning device for ballastless track steel formwork according to claim 1, characterized in that, The inclination adjustment component includes a rotating rod rotatably disposed on the main frame body, a worm gear fixed to the rotating rod, a worm meshing with the worm gear, and a spirit level fixed to the rotating rod. The end of the rotating rod is fixed to the rotating end of the support frame body.

7. A rapid positioning device for ballastless track steel formwork according to claim 1, characterized in that, The lateral spacing adjustment component includes a second lead screw with double reverse threads. The two lateral sliding bodies are respectively threadedly connected to both ends of the second lead screw, and adjustment knobs are provided at both ends of the second lead screw.

8. The rapid positioning device for ballastless track steel formwork according to claim 2, characterized in that, The protective pad is a rubber pad with serrations on the surface, and the connecting plate and the contact plate are connected by bolts.

9. The quick positioning device for ballastless track steel formwork according to claim 1, characterized in that, The base includes a rectangular frame and a slide rail disposed on the top of the rectangular frame. A slide rail groove adapted to the slide rail is provided at the bottom of the main frame body.

10. A method for quickly positioning a steel formwork using the positioning device according to any one of claims 1-9, characterized in that, Including the following operation steps: S100. Fix the base at a preset position; S200. Adjust the spacing between the two lateral sliding bodies to fit the steel formwork notch through the lateral spacing adjustment component; S300. Synchronously adjust the longitudinal spacing between the two contact bodies on the same lateral sliding body through the longitudinal spacing adjustment component; S400. Make the steel formwork notch contact with the contact body; S500. Adjust the inclination angle of the support frame body through the inclination adjustment component until the spirit level indicates horizontal; S600. Slide the main frame to finely adjust the position of the steel formwork, and disassemble the device after fixing the steel formwork.

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