Vertical cutting device for rectangular steel pipes with reinforcement for prefabricated buildings

Abstract

The invention discloses a vertical cutting device for reinforcing rectangular steel pipes for assembled buildings, comprising a longitudinal guide rail and a rear movable support. The rear movable support is provided with a support wheel at the bottom thereof, the support wheel being arranged to roll on the longitudinal guide rail. A horizontal guide rail is provided on the front side of the upper surface of the rear movable support in the left and right directions. A base is provided for sliding on the horizontal guide rail. A left column and a right column are respectively vertically provided on the left and right sides of the base. A reinforcing guide plate is provided between the left column and the right column to slide up and down via a lifting drive mechanism. The reinforcing guide plate is arranged vertically, and two rows of reinforcing guide holes are provided on the reinforcing guide plate. A horizontal movable lifting cutting mechanism is provided on the top of the reinforcing guide plate. The invention has a novel design, a simple structure, is easy to operate, has low labor intensity, high cutting efficiency, and a very regular cutting length. The degree of mechanization and automation is greatly improved, which not only ensures the production quality of rectangular steel pipes, but also improves production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and in particular relates to a vertical cutting device for rectangular steel pipes in prefabricated buildings. Background Art

[0002] The steel-concrete composite pipes used in prefabricated buildings and processed and manufactured in factories include rectangular steel pipes, and rectangular flange plates are fixed at both ends of the open ends of the rectangular steel pipes. This rectangular steel pipe has basically the same structure as the steel-concrete composite pipe disclosed in patent application number 2018218191308 and invention name "Device for Convenient Vertical Alignment and Positioning of Steel-Concrete Composite Pipes for Tower Crane Hoisting", in which the connecting flange plates are arranged at the upper and lower ends of the rectangular cylindrical structural steel plates. The rectangular steel pipe can be made of two channel steels with openings facing each other. Rectangular flange plates are welded at both ends of the two channel steels to form a frame structure. The rectangular steel plates are then positioned and welded to the outer sides of the two channel steels, and the connecting seams between the rectangular steel plates and the rectangular flange plates are also welded. The rectangular steel plates on both sides of this rectangular steel pipe are provided with circular holes arranged in a rectangular array, and tie bars are inserted into the circular holes. Since there are many circular holes, the tie bars need to be cut one by one after they are inserted, and a section of the tie bars must be reserved outside the rectangular steel plate. Manual cutting is not only labor-intensive and inefficient, but also cannot guarantee the consistency of the cutting lengths of all the tie bars. Therefore, it is urgent to design a device for quickly cutting the tie bars. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a prefabricated building rectangular steel pipe reinforcement vertical cutting device which is easy to operate, highly efficient, has low labor intensity for workers, and can cut uniform lengths.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a vertical cutting device for reinforcing rectangular steel pipes in assembled buildings, including a longitudinal guide rail and a rear movable support, the longitudinal guide rail is arranged on the ground along the front and rear directions, a support wheel is provided at the bottom of the rear movable support, and the support wheel is arranged to roll on the longitudinal guide rail, a horizontal guide rail is provided on the front side of the upper surface of the rear movable support along the left and right directions, a base is slidingly provided on the horizontal guide rail, a left column and a right column are vertically provided on the left and right sides of the base respectively, a reinforcing guide plate is provided between the left column and the right column for sliding up and down through a lifting drive mechanism, the reinforcing guide plate is vertically arranged, and two rows of reinforcing guide holes are provided on the reinforcing guide plate, and a horizontally movable lifting cutting mechanism is provided on the top of the reinforcing guide plate.

[0005] The lifting drive mechanism has two groups with identical structure and symmetrical arrangement on the left and right. Each group of lifting drive mechanisms includes a lifting motor, a vertical slide, a threaded sleeve, a guide sleeve and a screw rod. The vertical slide is arranged on the right side of the left column and the left side of the right column. The left and right sides of the reinforcement guide plate are respectively slidably connected to the vertical slide on the left column and the vertical slide on the right column. The threaded sleeve is fixedly arranged on the front side of the reinforcement guide plate in the vertical direction. The guide sleeve is fixedly arranged on the lower part of the right side of the left column and the left side of the right column in the vertical direction. The center lines of the threaded sleeve and the guide sleeve coincide. The lifting motor is arranged on the base. The main shaft of the lifting motor is vertically upward and is coaxially connected to the lower end of the screw rod. The screw rod passes through the guide sleeve and extends into the threaded connection in the threaded sleeve.

[0006] The horizontal moving lifting cutting mechanism includes a rack, a horizontal guide rod, a horizontal slide, a horizontal moving drive motor, a vertical guide rod, a vertical slide, a vertical drive cylinder, a cutting motor and a cutting disc;

[0007] The rack and horizontal guide rods are fixedly provided with the top of the reinforcement guide plate in the left and right horizontal directions. The horizontal slide is slidably connected to the horizontal guide rod. The horizontal movement drive motor is arranged on the horizontal slide. The main shaft of the horizontal movement drive motor is installed with a gear, and the gear is engaged with the rack. There are two vertical guide rods. The lower ends of the two vertical guide rods are fixedly connected to the top of the horizontal slide. The vertical slide is slidably connected to the two vertical guide rods. The cutting motor is installed on the vertical slide. The main shaft of the cutting motor is set horizontally forward. The cutting disk is installed at the front end of the main shaft of the cutting motor and is located in front of the reinforcement guide plate. The vertical drive cylinder is arranged on the horizontal slide, and the upper end of the vertical drive cylinder is connected to the bottom of the vertical slide.

[0008] Using the above technical solution, the specific operation process of the prefabricated building rectangular steel pipe reinforcement vertical cutting device is as follows:

[0009] The assembled and welded rectangular steel tube is clamped by the clamping and flipping device, with the front and rear rectangular steel plates both in a vertical position. The rectangular steel plates have been drilled with a number of holes arranged in a rectangular array before being welded to the two channel steels. The present invention is located on the rear side of the rectangular steel plate, which is perpendicular to the longitudinal guide rail. Then, follow the steps below:

[0010] (1) Push the rear movable support forward along the longitudinal guide rail to a position adjacent to the rectangular steel pipe and then stop;

[0011] (2) Start the two lifting motors of the lifting drive mechanism. The two lifting motors start at the same time, driving the screw to rotate. The two guide sleeves connected to the screw thread move up or down along the screw, driving the reinforcement guide plate to move up and down along the vertical slide until the reinforcement guide holes on the reinforcement guide plate and the top two layers of holes on the rectangular steel plate are at the same height. Then stop the two lifting motors, then push the left column and the right column to make the base slide left and right on the horizontal guide rail. Then stop moving the base after the reinforcement guide holes on the reinforcement guide plate correspond to some of the holes on the rectangular steel plate.

[0012] (3) Pass the steel bar forward through the guide holes and into the holes of the two rectangular steel plates, and extend it out of the front rectangular steel plate. After all the guide holes on the guide plates are penetrated by the steel bar, the front end of the steel bar extending out of the front rectangular steel plate should be kept consistent.

[0013] (4) Then start the vertical drive cylinder and cutting motor. The vertical drive cylinder pulls the vertical slide, cutting motor and cutting disc downward along the vertical guide rod. The cutting motor drives the cutting disc to rotate at high speed. The cutting disc cuts the steel bars between the rectangular steel plate on the rear side and the reinforcing bar guide plate. After the cutting disc cuts the steel bars of the upper and lower layers at the same time, it notifies the vertical drive cylinder to keep the cutting disc at a certain height.

[0014] (5) Then start the horizontal moving drive motor, which drives the gear to rotate. The gear rotates along the rack and drives the horizontal slide to move left or right along the horizontal guide. The cutting disc rotates at high speed and cuts the two layers of steel bars at the same time until all the steel bars passing through the steel bar guide are cut off. Then the horizontal moving drive motor stops, and then start the vertical drive cylinder to push the vertical slide upward, so that the cutting disc rises to the uppermost position and stops;

[0015] (6) Repeat steps (2) to (5) to insert and cut the remaining holes on the rectangular steel plate until all the steel bars are inserted into the holes and cut to complete the rectangular steel pipe operation.

[0016] By adopting the above technical solution, the present invention has novel design, simple structure, easy operation, low labor intensity, high cutting efficiency, and very regular cutting length. The degree of mechanization and automation is greatly improved, which not only ensures the production quality of rectangular steel pipes, but also improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a rear side view of the present invention during cutting operation;

[0018] Figure 2 yes Figure 1 Left view of;

[0019] Figure 3 yes Figure 1Enlarged view of the lifting drive mechanism and the horizontal moving lifting cutting mechanism. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 3 As shown, the prefabricated building rectangular steel pipe reinforcement vertical cutting device of the present invention includes a longitudinal guide rail 20 and a rear movable support 30. The longitudinal guide rail 20 is arranged on the ground along the front-to-back direction. A support wheel 31 is provided at the bottom of the rear movable support 30, and the support wheel 31 is rollingly set on the longitudinal guide rail 20. A horizontal guide rail 32 is provided on the front side of the upper surface of the rear movable support 30 along the left-right direction. A base 33 is slidingly set on the horizontal guide rail 32. A left column 34 and a right column 35 are vertically arranged on the left and right sides of the base 33 respectively. A reinforcement guide plate 37 is provided between the left column 34 and the right column 35 for sliding up and down through a lifting drive mechanism 36. The reinforcement guide plate 37 is vertically arranged, and two rows of reinforcement guide holes 38 are opened on the reinforcement guide plate 37. A horizontal movable lifting cutting mechanism 39 is provided on the top of the reinforcement guide plate 37.

[0021] The lifting drive mechanism 36 has two groups with identical structure and symmetrical arrangement on the left and right sides. Each group of lifting drive mechanisms 36 includes a lifting motor 40, a vertical slide 41, a threaded sleeve 42, a guide sleeve 43 and a screw rod 44. The vertical slide 41 is arranged on the right side of the left column 34 and the left side of the right column 35. The left and right sides of the rib-piercing guide plate 37 are respectively slidably connected to the vertical slide 41 on the left column 34 and the vertical slide 41 on the right column 35. The threaded sleeve 42 is fixedly arranged on the front side of the rib-piercing guide plate 37 in the vertical direction. The guide sleeve 43 is fixedly arranged on the lower part of the right side of the left column 34 and the left side of the right column 35 in the vertical direction. The center lines of the threaded sleeve 42 and the guide sleeve 43 coincide. The lifting motor 40 is arranged on the base 33. The main shaft of the lifting motor 40 is vertically upward and is coaxially connected to the lower end of the screw rod 44. The screw rod 44 passes through the guide sleeve 43 and extends into the threaded connection in the threaded sleeve 42.

[0022] The horizontal movable lifting cutting mechanism 39 includes a rack 45, a horizontal guide rod 46, a horizontal slide 47, a horizontal movable drive motor 48, a vertical guide rod 49, a vertical slide 50, a vertical drive cylinder 51, a cutting motor 52 and a cutting disc 53;

[0023] The rack 45 and the horizontal guide rod 46 are fixedly provided with the top of the reinforcement guide plate 37 along the left and right horizontal directions. The horizontal slide 47 is slidably connected to the horizontal guide rod 46. The horizontal movement drive motor 48 is arranged on the horizontal slide 47. The main shaft of the horizontal movement drive motor 48 is equipped with a gear 54. The gear 54 is engaged with the rack 45. There are two vertical guide rods 49. The lower ends of the two vertical guide rods 49 are fixedly connected to the top of the horizontal slide 47. The vertical slide 50 is slidably connected to the two vertical guide rods 49. The cutting motor 52 is installed on the vertical slide 50. The main shaft of the cutting motor 52 is set horizontally forward. The cutting disk 53 is installed at the front end of the main shaft of the cutting motor 52 and is located in front of the reinforcement guide plate 37. The vertical drive cylinder 51 is arranged on the horizontal slide 47. The upper end of the vertical drive cylinder 51 is connected to the bottom of the vertical slide 50.

[0024] The specific operation process of the prefabricated building rectangular steel pipe reinforcement vertical cutting device is as follows:

[0025] The assembled and welded rectangular steel tube is clamped by a clamping and flipping device (comprising a left movable bracket 2 and a right fixed bracket 3, which is described and protected in another patent filed on the same day as this application). The front and rear rectangular steel plates 18 are both in a vertical position. Prior to being welded to the two channel steels 16, the rectangular steel plates 18 have been drilled with a number of through-holes 55 arranged in a rectangular array. The present invention is located on the rear side of the rectangular steel plate 18, which is perpendicular to the longitudinal guide rail 20. The following steps are then followed:

[0026] (1) Push the rear movable support 30 forward along the longitudinal guide rail 20 to a position adjacent to the rectangular steel pipe and then stop;

[0027] (2) Start the two lifting motors 40 of the lifting drive mechanism 36. The two lifting motors 40 start at the same time, driving the screw rod 44 to rotate. The two guide sleeves 43 threadedly connected to the screw rod 44 move upward or downward along the screw rod 44, driving the rib guide plate 37 to move up and down along the vertical slide 41 until the rib guide holes 38 on the rib guide plate 37 are at the same height as the top two layers of through holes 55 on the rectangular steel plate. Then stop the two lifting motors 40, then push the left column 34 and the right column 35 to make the base 33 slide left and right on the horizontal guide rail 32. Then stop moving the base 33 after the rib guide holes 38 on the rib guide plate 37 correspond to some of the through holes 55 on the rectangular steel plate.

[0028] (3) The steel bar is passed forward through the guide holes 38 and inserted into the holes 55 of the two rectangular steel plates, and extends out of the front rectangular steel plate. After all the guide holes 38 on the guide plate 37 are penetrated by the steel bar, the front end of the steel bar extends out of the front rectangular steel plate to the same size;

[0029] (4) Then the vertical drive cylinder 51 and the cutting motor 52 are started. The vertical drive cylinder 51 pulls the vertical slide 50, the cutting motor 52 and the cutting disc 53 downward along the vertical guide rod 49. The cutting motor 52 drives the cutting disc 53 to rotate at high speed. The cutting disc 53 cuts the steel bars between the rectangular steel plate on the rear side and the steel bar guide plate 37. After the cutting disc 53 cuts the steel bars of the upper and lower layers at the same time, the vertical drive cylinder 51 is notified to keep the cutting disc 53 at a certain height.

[0030] (5) Then the horizontal moving drive motor 48 is started, and the horizontal moving drive motor 48 drives the gear 54 to rotate. The gear 54 rotates along the rack 45 and drives the horizontal slide 47 to move left or right along the horizontal guide. The cutting disc 53 rotates at high speed and cuts the two layers of steel bars at the same time until all the steel bars passing through the steel bar guide plate 37 are cut off. Then the horizontal moving drive motor 48 stops, and then the vertical driving cylinder 51 is started to push the vertical slide 50 upward, so that the cutting disc 53 rises to the uppermost position and then stops;

[0031] (6) Repeat steps (2) to (5) to insert and cut the remaining perforations 55 on the rectangular steel plate until all the steel bars are inserted into the perforations 55 and the rectangular steel pipe is cut to complete the operation.

[0032] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of protection of the technical solution of the present invention.

Claims

1. Vertical cutting device for rectangular steel pipes for prefabricated buildings, characterized by: It includes a longitudinal guide rail and a rear movable support, the longitudinal guide rail is arranged on the ground along the front-back direction, a support wheel is provided at the bottom of the rear movable support, the support wheel is rotatably provided on the longitudinal guide rail, a horizontal guide rail is provided on the front side of the upper surface of the rear movable support along the left-right direction, a base is slidably provided on the horizontal guide rail, a left column and a right column are vertically provided on the left and right sides of the base respectively, a rib-piercing guide plate is provided between the left column and the right column for sliding up and down through a lifting drive mechanism, the rib-piercing guide plate is vertically arranged, two rows of rib-piercing guide holes are opened on the rib-piercing guide plate, and a horizontal movable lifting cutting mechanism is provided on the top of the rib-piercing guide plate; The lifting drive mechanism has two groups with identical structure and symmetrical arrangement. Each lifting drive mechanism includes a lifting motor, a vertical slide, a threaded sleeve, a guide sleeve and a screw rod. The vertical slide is arranged on the right side of the left column and the left side of the right column. The left and right sides of the reinforcement guide plate are slidably connected to the vertical slide on the left column and the vertical slide on the right column respectively. The threaded sleeve is fixedly arranged on the front side of the reinforcement guide plate in the vertical direction. The guide sleeve is fixedly arranged on the lower part of the right side of the left column and the left side of the right column in the vertical direction. The center lines of the threaded sleeve and the guide sleeve coincide. The lifting motor is arranged on the base. The main shaft of the lifting motor is vertically upward and is coaxially connected to the lower end of the screw rod. The screw rod passes through the guide sleeve and extends into the threaded connection in the threaded sleeve. The horizontal moving lifting cutting mechanism includes a rack, a horizontal guide rod, a horizontal slide, a horizontal moving drive motor, a vertical guide rod, a vertical slide, a vertical drive cylinder, a cutting motor and a cutting disc; The rack and horizontal guide rods are fixedly provided with the top of the reinforcement guide plate in the left and right horizontal directions. The horizontal slide is slidably connected to the horizontal guide rod. The horizontal movement drive motor is arranged on the horizontal slide. The main shaft of the horizontal movement drive motor is installed with a gear, and the gear is engaged with the rack. There are two vertical guide rods. The lower ends of the two vertical guide rods are fixedly connected to the top of the horizontal slide. The vertical slide is slidably connected to the two vertical guide rods. The cutting motor is installed on the vertical slide. The main shaft of the cutting motor is set horizontally forward. The cutting disk is installed at the front end of the main shaft of the cutting motor and is located in front of the reinforcement guide plate. The vertical drive cylinder is arranged on the horizontal slide, and the upper end of the vertical drive cylinder is connected to the bottom of the vertical slide.

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