Film covering equipment and method for building steel component

Abstract

The invention discloses film covering equipment and method for building steel members, and relates to the technical field of steel member film covering, the device comprises a fixing frame used for supporting I-shaped steel, and the fixing frame is slidably sleeved with a film covering mechanism used for covering the I-shaped steel with a film; the film covering mechanism comprises a roller frame with a film roller, moving parts, lantern rings, a circumferential driving mechanism, outer gear rings and a transverse moving mechanism, the two lantern rings are slidably connected with the fixed frame through the moving parts, the two outer gear rings are coaxially installed on the opposite sides of the two lantern rings, the roller frame is installed between the two outer gear rings, the circumferential driving mechanism is installed between the roller frame and the lantern rings, and the transverse moving mechanism is installed between the two outer gear rings. The circumferential driving mechanism is used for driving the outer gear ring to rotate, and the transverse moving mechanism is installed between the outer gear ring and the moving part. The film roller on the roller frame can be conveniently driven to horizontally move in the process of revolving in the circumferential direction of the I-shaped steel, so that the I-shaped steel can be conveniently subjected to continuous and comprehensive film covering, the film covering efficiency is effectively improved, and the film covering quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel member coating, in particular to a coating equipment and method for building steel members. BACKGROUND

[0002] In recent years, as the core load-bearing member in steel structure buildings, H-shaped steel has been widely used in industrial plants, large-span stadiums and other projects due to its unique bending resistance performance of H-shaped cross-section. However, the anti-corrosion protection of this section during transportation and on-site storage after leaving the factory still faces severe challenges. Traditional coating processes mostly use manual operation of elastic film to wrap the surface of steel members, but this method exposes significant defects when dealing with non-flat sections such as H-shaped steel.

[0003] Due to the continuous corner structure at the intersection of the web and flange of H-shaped steel, the film material is prone to stress concentration at the corners during manual coating due to uneven stretching, resulting in local film layer thinning or even rupture, affecting the coating quality. The more prominent problem is that when H-shaped steel is placed horizontally on the transportation support, the lower flange forms a closed area with the contact surface of the support, making it difficult for the operator to embed the film material completely into this contact interface, which makes this area a high-risk site for corrosion initiation. This wrapping blind spot caused by structural characteristics often requires repeated adjustment of the member position for secondary film repair, not only significantly reducing the construction efficiency, but also causing wear and tear to the coated area during the adjustment process, resulting in secondary loss of protective performance. SUMMARY

[0004] The present application provides a coating equipment and method for building steel members, which can solve the problem of the need for manual secondary film repair during the coating process of H-shaped steel members, thereby affecting the coating quality and efficiency.

[0005] The purpose of the present application can be achieved by the following technical solutions: The present application provides a coating equipment and method for building steel members, which can solve the problem of the need for manual secondary film repair during the coating process of H-shaped steel members, thereby affecting the coating quality and efficiency. The coating mechanism includes a roller frame with a film roller, a moving part, a sleeve ring, a circumferential driving mechanism, an outer gear ring, and a transverse moving mechanism. Two sleeve rings are connected to the fixed frame through the moving part. Two outer gear rings are coaxially installed on the opposite sides of the two sleeve rings. The roller frame is installed between the two outer gear rings. The circumferential driving mechanism is installed between the roller frame and the sleeve ring, and the circumferential driving mechanism drives the outer gear ring to rotate. The transverse moving mechanism is installed between the outer gear ring and the moving part. When the outer gear ring rotates, the moving part moves through the transverse moving mechanism.

[0006] As a further scheme of the present application, the fixing frame comprises a T-shaped guide rail and a "7"-shaped support frame, the support frame is connected to the end of the T-shaped guide rail at one side close to the bottom end, and the horizontal part of the support frame is used for supporting the H-shaped steel.

[0007] As a further scheme of the present application, the moving part comprises a support plate, a T-shaped notch and a walking wheel, the top end of the support plate is in an arc structure, the top end of the support plate is connected to the bottom end arc surface of the collar, the T-shaped notch is provided through the side wall close to the bottom end of the support plate, the support plate is slidably connected to the T-shaped guide rail through the T-shaped notch, and the walking wheels are symmetrically installed at the bottom of the support plate.

[0008] As a further scheme of the present application, the roller frame comprises a U-shaped plate, a partition plate and a convex plate, the U-shaped plate is installed between the two outer gear rings, the two convex plates are symmetrically installed at the bottom of the U-shaped plate, the partition plate is installed between the opposite side walls of the U-shaped plate, the film roller is arranged above the partition plate, and the film roller is detachably connected to the U-shaped plate.

[0009] As a further scheme of the present application, the circumferential driving mechanism comprises an arc-shaped slide plate, a T-shaped slide block, an inner gear ring, a first gear, a rotating shaft and a transmission mechanism, the arc-shaped slide plate is attached to the outer ring of the collar, the T-shaped slide block is connected to one side of the arc-shaped slide plate close to the collar, the outer ring of the collar is provided with a T-shaped ring groove for the sliding of the T-shaped slide block, the inner gear ring is coaxially arranged on the inner side wall of the collar, the rotating shaft is arranged through the convex plate, and the rotating shaft is rotatably connected to the convex plate, the first gear is installed at one end of the rotating shaft, and the first gear is meshingly arranged with the inner gear ring, and the transmission mechanism is installed between the rotating shaft and the U-shaped plate, and the transmission mechanism is used for driving the rotating shaft to rotate.

[0010] As a further scheme of the present application, the transmission mechanism comprises a motor, a first rotating pin, a second rotating pin, a second gear, a driving bevel gear, a driven bevel gear, a first sprocket and a first chain, the motor is installed between the partition plate and the bottom of the U-shaped plate, the output end of the motor is coaxially connected to one of the first rotating pins, the other first rotating pin is rotatably installed at the bottom of the U-shaped plate, the two second gears are respectively sleeved on the two first rotating pins, and the two second gears are meshingly arranged, the two second rotating pins are rotatably installed at the bottom of the U-shaped plate, the first sprocket is sleeved on the first rotating pin and the second rotating pin, and connected through the first chain, the driving bevel gear is installed at the bottom end of the second rotating pin, the driven bevel gear is installed at the end of the rotating shaft, and the driven bevel gear is meshingly arranged with the driving bevel gear.

[0011] As a further scheme of the present application, the transverse moving mechanism comprises a third gear, a third rotating pin, a second sprocket, a second chain, a threaded rotating drum and a screw rod, the threaded rotating drum is arranged through two support plates and is rotationally connected with the support plates, the screw rod is installed on the side wall of the support frame close to the bottom end, the threaded rotating drum is threadedly sleeved with the screw rod, the third rotating pin is located above the threaded rotating drum and is rotationally connected with the support plates, two second sprockets are sleeved on the threaded rotating drum and the third rotating pin respectively, and the two second sprockets on the same side are connected through a second chain, and the third gear is coaxially arranged at the end of the third rotating pin and is meshingly arranged with the outer gear ring.

[0012] As a further scheme of the present application, the transverse moving mechanism comprises a third gear, a third rotating pin, a second sprocket, a second chain, a threaded rotating drum and a screw rod, the threaded rotating drum is arranged through two support plates and is rotationally connected with the support plates, the screw rod is installed on the side wall of the support frame close to the bottom end, the threaded rotating drum is threadedly sleeved with the screw rod, the third rotating pin is located above the threaded rotating drum and is rotationally connected with the support plates, two second sprockets are sleeved on the threaded rotating drum and the third rotating pin respectively, and the two second sprockets on the same side are connected through a second chain, and the third gear is coaxially arranged at the end of the third rotating pin and is meshingly arranged with the outer gear ring.

[0013] As a further scheme of the present application, the distance between the outer side wall of the arc-shaped sliding plate and the axis of the sleeve ring is less than the radius of the outer gear ring.

[0014] The second aspect of the present application provides a film covering method for a building steel component, which is applied to the film covering equipment for a building steel component and comprises the following steps. Step one: one side notch of the I-shaped steel is downward, and the I-shaped steel is placed on the fixing frame, and the I-shaped steel is adjusted on the fixing frame by pushing, so that one end of the I-shaped steel is located between the two sleeve rings; Step two: the plastic film on the film roller is adhered to the outer side wall close to one end of the I-shaped steel by pulling, and then the circumferential driving mechanism is started to drive the two outer gear rings to rotate synchronously along the sleeve rings, and the outer gear rings drive the roller frame to move circumferentially along the sleeve rings in the process of rotation, so that the plastic film on the film roller is circumferentially wound on the outer side of the I-shaped steel; Step three: the transverse moving mechanism is linked in the process of rotation of the outer gear ring, the moving part is driven to slide along the fixing frame, so that the roller frame moves along the length direction of the I-shaped steel in the process of circumferential movement, so that the plastic film is uniformly wound on the outer side of the I-shaped steel, and the film covering of the I-shaped steel is completed; Step four: the I-shaped steel is cut after the film covering is completed, the I-shaped steel is pushed to slide away from the film covering mechanism, until the I-shaped steel is separated from the fixing frame, and then the I-shaped steel after the film covering is taken down.

[0015] The present application has the following advantages: 1、The present application, through the cooperative design of the fixed frame and the film covering mechanism, realizes efficient film covering of the building steel member, and the combination of the circumferential driving mechanism and the outer gear ring in the film covering mechanism endows the roller frame with circumferential rotation capability; when the circumferential driving mechanism drives the outer gear ring to rotate, the linkage transverse moving mechanism is driven, facilitating the conversion of the rotary motion into the axial displacement of the moving part, forming a composite motion mode of "rotary film covering + synchronous feeding", so that the film roller can not only realize circumferential full coverage but also continuously advance along the axial direction in the process of wrapping the surface of the shaped steel, effectively solving the film covering blind area problem existing in the traditional equipment, and in addition, it is convenient for the film roller to continuously cover the shaped steel, and this structure design avoids the tedious process of manual position adjustment or segmented operation in the traditional film covering equipment, greatly shortens the film covering time, and is beneficial to improving the film covering efficiency.

[0016] 2、In the present application, the web of the shaped steel member is supported by the fixed frame, so that after completing the continuous film covering, the shaped steel member can be separated from the fixed frame by pushing, thereby not only facilitating the overall film covering of the shaped steel member, but also facilitating the unloading after the film covering is completed.

[0017] 3、In the present application, the screw thread cylinder in the transverse moving mechanism is threadedly matched with the screw rod, realizing the accurate positioning of the moving part, and the setting of the walking wheel further reduces the resistance during the operation of the equipment, improves the moving efficiency, in addition, the film roller in the roller frame is detachably connected with the U-shaped plate, facilitating the disassembly and replacement of the film roller according to the needs, and the uniform spreading and accurate fitting of the film material during the film covering process not only effectively improves the film covering quality of the steel member, but also effectively reduces the waste of film material. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings.

[0019] Figure 1 is a perspective view of a film covering equipment for building steel members according to the present application; Figure 2 is a front view of a film covering equipment for building steel members according to the present application; Figure 3 is a perspective view of a film covering equipment for building steel members according to the present application during film covering; Figure 4 is a perspective view of a film covering mechanism in a film covering equipment for building steel members according to the present application; Figure 5 is a sectional view of a film covering mechanism in a film covering equipment for building steel members according to the present application; Figure 6 is Figure 5 is an enlarged view of part A in Figure 7is a perspective view of a connection part between a transmission mechanism and a roller frame in a film coating device for building steel members according to the present application; Figure 8 is a perspective view of a connection part between a transverse moving mechanism and an outer gear ring in a film coating device for building steel members according to the present application; Figure 9 is a perspective view of a connection part between an arc-shaped slide plate and a T-shaped slide block in a film coating device for building steel members according to the present application; Figure 10 is a perspective view of a connection part between a sleeve ring and a moving piece in a film coating device for building steel members according to the present application.

[0020] In the figure: 1, a channel steel; 2, a fixed frame; 21, a T-shaped guide rail; 22, a support frame; 3, a film coating mechanism; 31, a film roller; 32, a roller frame; 321, a U-shaped plate; 322, a partition plate; 323, a convex plate; 33, a moving piece; 331, a support plate; 332, a T-shaped notch; 333, a walking wheel; 34, a sleeve ring; 341, a T-shaped ring groove; 342, a convex ring; 35, a circumferential driving mechanism; 351, an arc-shaped slide plate; 352, a T-shaped slide block; 353, an inner gear ring; 354, a first gear; 355, a rotating shaft; 356, a transmission mechanism; 3561, a motor; 3562, a first rotating pin; 3563, a second rotating pin; 3564, a second gear; 3565, a driving bevel gear; 3566, a driven bevel gear; 3567, a first sprocket; 3568, a first chain; 36, an outer gear ring; 361, an annular groove; 37, a transverse moving mechanism; 371, a third gear; 372, a third rotating pin; 373, a second sprocket; 374, a second chain; 375, a threaded rotating cylinder; 376, a screw rod. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application are described in detail below, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0022] As Figures 1-10As shown, the present application is a kind of film covering equipment for building steel components, including a fixed frame 2 for supporting the I-beam 1, and a film covering mechanism 3 for covering the I-beam 1 is slidably sleeved on the fixed frame 2;The film covering mechanism 3 includes roller bracket 32 with film roller 31, moving part 33, sleeve ring 34, circumferential driving mechanism 35, outer gear ring 36 and transverse moving mechanism 37, two sleeve rings 34 are slidably connected with the fixed frame 2 through the moving part 33, two outer gear rings 36 are coaxially installed on the opposite sides of the two sleeve rings 34, the roller bracket 32 is installed between the two outer gear rings 36, the circumferential driving mechanism 35 is installed between the roller bracket 32 and the sleeve ring 34, and the circumferential driving mechanism 35 is used to drive the outer gear ring 36 to rotate, and the transverse moving mechanism 37 is installed between the outer gear ring 36 and the moving part 33, and the moving part 33 is moved by the transverse moving mechanism 37 when the outer gear ring 36 rotates.

[0023] It should be noted that, in use, the I-beam 1 is placed on the fixed frame 2, the web of the I-beam 1 is attached to the top of the fixed frame 2, and one end of the I-beam 1 is located between the two sleeve rings 34, then one end of the plastic film wound on the film roller 31 is adhered to the outer side wall of the I-beam 1 near one end, the circumferential driving mechanism 35 is started to drive the outer gear ring 36 to rotate coaxially along the sleeve ring 34, thereby driving the roller bracket 32 and the film roller 31 to revolve around the I-beam 1, and the revolving process can wrap the plastic film circumferentially around the I-beam 1, at the same time, the outer gear ring 36 drives the transverse moving mechanism 37 to move when rotating, and drives the moving part 33 to slide along the fixed frame 2, so that the sleeve ring 34 moves along the length direction of the I-beam 1, and the roller bracket 32 moves transversely during the revolving process, so that the plastic film is evenly wound on the outer side of the I-beam 1 to complete the film covering.

[0024] As shown in the figure, Figures 2-3 The fixed frame 2 includes a T-shaped guide rail 21 and a "7"-shaped support frame 22, the side of the support frame 22 close to the bottom end is connected with the end of the T-shaped guide rail 21, and the horizontal part of the support frame 22 is used to support the I-beam 1.

[0025] It should be noted that, in order to ensure the carrying capacity of the support frame 22, the support frame 22 in the embodiment is made of Q345 steel, and the support frame 22 includes a horizontal part and a vertical part, which not only facilitates the carrying and supporting of the I-beam 1 to be covered, but also facilitates the I-beam 1 to slide away from the vertical part of the support frame 22 after the film covering is completed, so that it can be separated from the horizontal part of the support frame 22, facilitating the cutting of the I-beam 1, and the T-shaped guide rail 21 facilitates the sliding guide of the moving part 33, improving the stability.

[0026] As shown in the figure, Figures 3-4As shown, the moving piece 33 comprises a support plate 331, a T-shaped notch 332 and a walking wheel 333, the top end of the support plate 331 is arc-shaped, and the top end of the support plate 331 is connected with the bottom end arc surface of the sleeve ring 34, the T-shaped notch 332 is provided through the side wall of the support plate 331 close to the bottom end, the support plate 331 is slidably connected with the T-shaped guide rail 21 through the T-shaped notch 332, and the walking wheel 333 is symmetrically installed at the bottom of the support plate 331.

[0027] It should be noted that the T-shaped notch 332 not only facilitates the sliding of the support plate 331 along the T-shaped guide rail 21, but also makes the support plate 331 not easy to fall off the T-shaped guide rail 21 during sliding, which is beneficial to improve the stability of sliding, and the walking wheel 333 facilitates the bearing of the weight of the support plate 331, avoids that a large friction force is generated due to the gravity of the support plate 331 acting on the T-shaped guide rail 21, and is beneficial to reduce the resistance received by the support plate 331 during movement and improve the flexibility of movement.

[0028] As shown in Figure 4 and Figure 8 , the roller frame 32 comprises a U-shaped plate 321, a partition plate 322 and a convex plate 323, the U-shaped plate 321 is installed between the two outer gear rings 36, the two convex plates 323 are symmetrically installed at the bottom of the U-shaped plate 321, the partition plate 322 is installed between the opposite side walls on both sides of the U-shaped plate 321, the film roller 31 is arranged above the partition plate 322, and the film roller 31 is detachably connected with the U-shaped plate 321.

[0029] It should be noted that in the embodiment, a plastic film (not marked in the figure) for coating is wound on the film roller 31, and when the plastic film on the film roller 31 is used up, the film roller 31 can be detached from the U-shaped plate 321, and the application does not limit the detachment mode.

[0030] As shown in Figures 4-8 , the circumferential driving mechanism 35 comprises an arc-shaped sliding plate 351, a T-shaped sliding block 352, an inner gear ring 353, a first gear 354, a rotating shaft 355 and a transmission mechanism 356, the arc-shaped sliding plate 351 is arranged in close contact with the outer ring of the sleeve ring 34, the T-shaped sliding block 352 is connected on one side of the arc-shaped sliding plate 351 close to the sleeve ring 34, the outer ring of the sleeve ring 34 is provided with a T-shaped ring groove 341 for sliding of the T-shaped sliding block 352, the inner gear ring 353 is coaxially arranged on the inner side wall of the sleeve ring 34, the rotating shaft 355 is arranged through the convex plate 323 and is rotatably connected with the convex plate 323, the first gear 354 is installed on one end of the rotating shaft 355 and is meshingly arranged with the inner gear ring 353, and the transmission mechanism 356 is installed between the rotating shaft 355 and the U-shaped plate 321 and is used to drive the rotating shaft 355 to rotate.

[0031] It should be noted that in this embodiment, the shaft 355 is rotatably connected between the convex plate 323 through the first bearing, and the T-shaped sliding block 352 and the T-shaped ring groove 341 are used to make the arc-shaped sliding plate 351 adhere to the outer ring of the sleeve ring 34 for circumferential sliding, and under the cooperation of the T-shaped ring groove 341 and the T-shaped sliding block 352, the arc-shaped sliding plate 351 will not be separated from the sleeve ring 34. In order to avoid the arc-shaped sliding plate 351 being hindered during the circumferential sliding of the sleeve ring 34, the top end of the support plate 331 is connected to the bottom of the side of the sleeve ring 34 away from the outer gear ring 36, that is, the plane where the support plate 331 is located does not intersect with the plane where the sleeve ring 34 rotates circumferentially. The transmission mechanism 356 on the roller frame 32 is started to facilitate synchronous and same-direction rotation of the two shafts 355 on the convex plates 323. When the shaft 355 rotates, the first gear 354 engaged with the inner gear ring 353 rotates. Since the rotation freedom of the inner gear ring 353 is limited by the sleeve ring 34, it cannot rotate, so when the first gear 354 rotates, it drives the entire roller frame 32 to revolve along the inner gear ring 353, that is, the film roller 31 on the roller frame 32 can move circumferentially along the work-shaped steel 1. When coating, the end of the plastic film wound on the film roller 31 is adhered to the outer side wall of the work-shaped steel 1, and as the film roller 31 moves circumferentially along the work-shaped steel 1, the plastic film can be self-adaptively wound on the outer side of the work-shaped steel 1.

[0032] As shown in Figure 5 and Figure 8 , the transmission mechanism 356 includes a motor 3561, a first rotating pin 3562, a second rotating pin 3563, a second gear 3564, a driving bevel gear 3565, a driven bevel gear 3566, a first sprocket 3567, and a first chain 3568. The motor 3561 is installed between the partition plate 322 and the bottom of the U-shaped plate 321, and the output end of the motor 3561 is coaxially connected with one of the first rotating pins 3562. The other first rotating pin 3562 is rotatably installed at the bottom of the U-shaped plate 321. Two second gears 3564 are respectively sleeved on the two first rotating pins 3562 and are engaged. Two second rotating pins 3563 are rotatably installed at the bottom of the U-shaped plate 321. The first sprocket 3567 is sleeved on the first rotating pin 3562 and the second rotating pin 3563, and is connected through the first chain 3568. The driving bevel gear 3565 is installed at the bottom end of the second rotating pin 3563. The driven bevel gear 3566 is installed at the end of the shaft 355, and is engaged with the driving bevel gear 3565.

[0033] It should be noted that in the embodiment, the first rotating pin 3562 not connected with the motor 3561 and the two second rotating pins 3563 are respectively connected with the bottom of the U-shaped plate 321 through bearing seats, and when the motor 3561 drives the first rotating pin 3562 coaxially connected with the output end of the motor 3561 to rotate, since the second gears 3564 meshing with each other are installed on the two adjacent first rotating pins 3562, the other first rotating pin 3562 will synchronously and reversely rotate, that is, when the motor 3561 rotates, the two first rotating pins 3562 will synchronously and reversely rotate, and the first chain wheel 3567 and the first chain 3568 are arranged between each first rotating pin 3562 and the corresponding second rotating pin 3563, so that when the motor 3561 rotates, the two second rotating pins 3563 will synchronously and reversely rotate, and when the second rotating pin 3563 rotates, the driving bevel gear 3565 will drive the rotating shaft 355 connected with the driven bevel gear 3566 to rotate, since the two driven bevel gears 3566 at the ends of the two rotating shafts 355 are symmetrically distributed, when the two second rotating pins 3563 synchronously and reversely rotate, the two rotating shafts 355 will synchronously and forwardly rotate, the rotating shaft 355 drives the first gear 354 to revolve around the inner race 353, and the circumferential movement of the roller frame 32 is realized.

[0034] As shown in Figure 3 and Figure 9 , the transverse moving mechanism 37 includes a third gear 371, a third rotating pin 372, a second sprocket wheel 373, a second chain 374, a threaded rotating cylinder 375 and a lead screw 376, the threaded rotating cylinder 375 is arranged through the two support plates 331, and the threaded rotating cylinder 375 is rotatably connected with the support plate 331, the lead screw 376 is installed on the side wall of the support frame 22 close to the bottom end, the threaded rotating cylinder 375 is threadedly sleeved with the lead screw 376, the third rotating pin 372 is located above the threaded rotating cylinder 375, and the third rotating pin 372 is rotatably connected with the support plate 331, the two second sprocket wheels 373 are respectively sleeved on the threaded rotating cylinder 375 and the third rotating pin 372, and the two second sprocket wheels 373 on the same side are connected through the second chain 374, the third gear 371 is coaxially arranged at the end of the third rotating pin 372, and the third gear 371 is meshingly arranged with the outer gear ring 36.

[0035] It should be noted that in the embodiment, the third rotating pin 372 is rotatably connected with the support plate 331 through the second bearing, and when the roller frame 32 moves circumferentially, the outer gear ring 36 will rotate coaxially along the sleeve ring 34, and since the outer gear ring 36 is in mesh with the third gear 371 at the end of the third rotating pin 372, the outer gear ring 36 will drive the third rotating pin 372 connected with the third gear 371 to rotate when the outer gear ring 36 rotates, and through the transmission action of the second sprocket 373 and the second chain 374, the third rotating pin 372 will drive the threaded rotating cylinder 375 to rotate synchronously, and since the rotating degree of freedom of the screw rod 376 is limited, the threaded rotating cylinder 375 will move along the length direction of the screw rod 376 when it rotates, and the movement of the threaded rotating cylinder 375 will drive the moving piece 33 to move along the length direction of the T-shaped guide rail 21, so that the sleeve ring 34 drives the outer gear ring 36 and the roller frame 32 to move horizontally, and cooperates with the circumferential movement of the roller frame 32, so as to facilitate the plastic film to uniformly wrap the outer surface of the I-shaped steel 1. It should be noted that in the embodiment, the transmission ratio between the outer gear ring 36 and the third gear 371 needs to meet the film covering requirement, that is, when the outer gear ring 36 drives the roller frame 32 to revolve one circle, the displacement generated by the transmission of the third gear 371 driving the threaded rotating cylinder 375 to rotate in this process cannot be greater than the width of the plastic film on the film roller 31, so as to ensure that the outer surface of the I-shaped steel 1 can be fully wrapped during the film covering process, and in addition, part of the plastic film can be reserved to extend out at the positions of the two ends of the I-shaped steel 1 during the film covering process, and after the film covering of the outer surface of the I-shaped steel 1 is completed, the plastic film extending out at the two ends of the I-shaped steel 1 is pressed, so that the two ends of the I-shaped steel 1 can also be covered by the plastic film, and finally the plastic film after being pressed at the two ends is bound by the film roll, which not only enables the I-shaped steel 1 to be fully wrapped by the plastic film, but also makes the plastic film after film covering not easy to fall off.

[0036] As shown in Figures 9-10 , the side of the sleeve ring 34 close to the outer gear ring 36 is coaxially provided with a convex ring 342, and the side of the outer gear ring 36 is provided with an annular groove 361 corresponding to the convex ring 342, the convex ring 342 extends into the annular groove 361, and the convex ring 342 is rotatably connected with the annular groove 361.

[0037] It should be noted that in the embodiment, the annular groove 361 is coaxially arranged with the outer gear ring 36, and the convex ring 342 is rotatably connected with the annular groove 361 through the ball bearing, which not only does not affect the rotation of the outer gear ring 36, but also is conducive to improving the stability of the rotation of the outer gear ring 36.

[0038] As shown in Figure 4 and Figure 9 , the distance between the outer side wall of the arc-shaped sliding plate 351 and the axis of the sleeve ring 34 is less than the radius of the outer gear ring 36.

[0039] It should be noted that, since the arc-shaped slide plate 351 will slide along the outer circle of the collar 34, when the distance between the outer side wall of the arc-shaped slide plate 351 and the axis of the collar 34 is less than the radius of the outer gear ring 36, it can be ensured that the arc-shaped slide plate 351 will not collide with the third rotating pin 372 when it slides to the bottom end of the collar 34, thereby ensuring normal operation of the device. In addition, in the present embodiment, the vertical distance between the top end of the roller frame 32 and the axis of the outer gear ring 36 is less than the vertical distance between the threaded rotating cylinder 375 and the axis of the outer gear ring 36, that is, the roller frame 32 will not collide with the threaded rotating cylinder 375 when it performs circumferential revolution.

[0040] The embodiment of the present application provides a film covering method for a building steel member, comprising the following steps: Step one: place the channel steel 1 on the fixed frame 2 with one side notch downward, and push the channel steel 1 to adjust its position on the fixed frame 2, so that one end of the channel steel 1 is located between the two collars 34; Step two: pull the plastic film on the film roller 31 to bond one end of the plastic film to the outer side wall near one end of the channel steel 1, and then start the circumferential driving mechanism 35 to drive the two outer gear rings 36 to rotate synchronously along the collar 34, so that the outer gear ring 36 drives the roller frame 32 to move circumferentially along the collar 34, thereby winding the plastic film on the film roller 31 circumferentially around the channel steel 1; Step three: drive the moving part 33 to slide along the fixed frame 2 by driving the transverse moving mechanism 37 during the rotation of the outer gear ring 36, so that the roller frame 32 moves along the length direction of the channel steel 1 during the circumferential movement, thereby uniformly winding the plastic film around the channel steel 1, and the film covering of the channel steel 1 is completed; Step four: cut the channel steel 1 after the film covering is completed, push the channel steel 1 to slide away from the film covering mechanism 3 until the channel steel 1 is separated from the fixed frame 2, and then the channel steel 1 after the film covering can be taken off.

[0041] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A film coating device for building steel components, comprising a fixing frame (2) for supporting an I-shaped steel (1), characterized in that: The sliding sleeve on the fixed frame (2) is provided with a coating mechanism (3) for coating the I-shaped steel (1); The coating mechanism (3) comprises a roller frame (32) with a film roller (31), a moving member (33), a sleeve (34), a circumferential driving mechanism (35), an outer gear ring (36) and a transverse moving mechanism (37). The two sleeves (34) are slidably connected to the fixed frame (2) through the moving member (33). The two outer gear rings (36) are coaxially mounted on opposite sides of the two sleeves (34). The roller frame (32) is mounted between the two outer gear rings (36). The circumferential driving mechanism (35) is mounted between the roller frame (32) and the sleeve (34), and the circumferential driving mechanism (35) is used to drive the outer gear ring (36) to rotate. The transverse moving mechanism (37) is mounted between the outer gear ring (36) and the moving member (33). When the outer gear ring (36) rotates, it drives the moving member (33) to move through the transverse moving mechanism (37).

2. The film coating equipment for building steel components according to claim 1, characterized in that: The fixing frame (2) comprises a T-shaped guide rail (21) and a "7"-shaped support frame (22), wherein the side of the support frame (22) close to the bottom end is connected to the end of the T-shaped guide rail (21), and the horizontal portion of the support frame (22) is used to support the I-shaped steel (1).

3. The film coating device for building steel components according to claim 2, characterized in that: The movable member (33) comprises a support plate (331), a T-shaped notch (332) and a running wheel (333). The top end of the support plate (331) is an arc-shaped structure, and the top end of the support plate (331) is connected to the arc surface of the bottom end of the collar (34). The T-shaped notch (332) is opened through the side wall of the support plate (331) near the bottom end. The support plate (331) is slidably connected to the T-shaped guide rail (21) through the T-shaped notch (332). The running wheel (333) is symmetrically installed on the bottom of the support plate (331).

4. The film coating device for building steel components according to claim 1, characterized in that: The roller frame (32) includes a U-shaped plate (321), a partition (322) and a convex plate (323), wherein the U-shaped plate (321) is installed between two outer gear rings (36), the two convex plates (323) are symmetrically installed at the bottom of the U-shaped plate (321), the partition (322) is installed between the two opposite side walls of the U-shaped plate (321), the film roller (31) is arranged above the partition (322), and the film roller (31) is detachably connected to the U-shaped plate (321).

5. The film coating device for building steel components according to claim 4, characterized in that: The circumferential driving mechanism (35) includes an arc-shaped slide (351), a T-shaped slider (352), an inner gear ring (353), a first gear (354), a rotating shaft (355) and a transmission mechanism (356), wherein the arc-shaped slide (351) is fitted on the outer ring of the collar (34), the T-shaped slider (352) is connected to a side of the arc-shaped slide (351) close to the collar (34), the outer ring of the collar (34) is provided with a T-shaped ring groove (341) for the T-shaped slider (352) to slide, and the inner gear ring (353) is coaxially arranged on the inner side wall of the collar (34), the rotating shaft (355) is arranged to pass through the convex plate (323), and the rotating shaft (355) is rotatably connected to the convex plate (323), the first gear (354) is installed at one end of the rotating shaft (355), and the first gear (354) is meshed with the inner gear ring (353), the transmission mechanism (356) is installed between the rotating shaft (355) and the U-shaped plate (321), and the transmission mechanism (356) is used to drive the rotating shaft (355) to rotate.

6. The film coating device for building steel components according to claim 5, characterized in that: The transmission mechanism (356) includes a motor (3561), a first rotating pin (3562), a second rotating pin (3563), a second gear (3564), a driving bevel gear (3565), a driven bevel gear (3566), a first sprocket (3567) and a first chain (3568). The motor (3561) is installed between the partition (322) and the bottom of the U-shaped plate (321), and the output end of the motor (3561) is coaxially connected to one of the first rotating pins (3562). The other first rotating pin (3562) is rotatably installed at the bottom of the U-shaped plate (321). The two second gears (356 4) are respectively mounted on the two first rotating pins (3562), and the two second gears (3564) are meshed, the two second rotating pins (3563) are both rotatably mounted on the bottom of the U-shaped plate (321), the first sprocket (3567) is respectively mounted on the first rotating pin (3562) and the second rotating pin (3563), and are connected by a first chain (3568), the driving bevel gear (3565) is mounted on the bottom end of the second rotating pin (3563), the driven bevel gear (3566) is mounted on the end of the rotating shaft (355), and the driven bevel gear (3566) is meshed with the driving bevel gear (3565).

7. The film coating device for building steel components according to claim 3, characterized in that: The transverse movement mechanism (37) includes a third gear (371), a third rotating pin (372), a second sprocket (373), a second chain (374), a threaded rotating cylinder (375) and a screw rod (376). The threaded rotating cylinder (375) is arranged between the two support plates (331), and the threaded rotating cylinder (375) is rotatably connected to the support plates (331). The screw rod (376) is installed on the side wall of the support frame (22) near the bottom end. The threaded rotating cylinder (375) and the screw rod (376) are threaded. The third rotating pin (372) is located above the threaded rotating cylinder (375), and the third rotating pin (372) is rotatably connected to the support plate (331). The two second sprockets (373) are respectively mounted on the threaded rotating cylinder (375) and the third rotating pin (372). The two second sprockets (373) on the same side are connected by a second chain (374). The third gear (371) is coaxially arranged at the end of the third rotating pin (372), and the third gear (371) is meshed with the outer gear ring (36).

8. The film coating equipment for building steel components according to claim 1, characterized in that: A convex ring (342) is coaxially mounted on one side of the collar (34) close to the outer gear ring (36); an annular groove (361) corresponding to the convex ring (342) is provided on one side of the outer gear ring (36); the convex ring (342) extends into the annular groove (361), and the convex ring (342) is rotatably connected to the annular groove (361).

9. The film coating device for building steel components according to claim 5, characterized in that: The distance between the outer side wall of the arc-shaped slide plate (351) and the axis of the collar (34) is smaller than the radius of the outer gear ring (36).

10. A coating method for building steel components, applied to the coating device for building steel components according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the I-shaped steel (1) with one side notch facing downwards on the fixing frame (2), and push the I-shaped steel (1) to adjust its position on the fixing frame (2) so that one end of the I-shaped steel (1) is located between the two rings (34); Step 2: Pull the plastic film on the film roller (31) to adhere one end of the film roller to the outer wall of the I-shaped steel (1) near one end, then start the circumferential drive mechanism (35) to drive the two outer gear rings (36) to rotate synchronously along the sleeve ring (34), and during the rotation of the outer gear ring (36), drive the roller frame (32) to move circumferentially along the sleeve ring (34), thereby wrapping the plastic film on the film roller (31) circumferentially around the outer side of the I-shaped steel (1); Step 3: During the rotation of the outer gear ring (36), the lateral moving mechanism (37) is linked to drive the moving member (33) to slide along the fixed frame (2), so that the roller frame (32) moves along the length direction of the I-shaped steel (1) during the circumferential movement, thereby evenly wrapping the plastic film around the outside of the I-shaped steel (1), thereby completing the coating of the I-shaped steel (1); Step 4: After the I-shaped steel (1) is coated, it is cut off and the I-shaped steel (1) is pushed to slide in a direction away from the coating mechanism (3) until the I-shaped steel (1) is separated from the fixing frame (2), and the coated I-shaped steel (1) can be removed.

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