Box beam reinforcement cage forming device and forming system

Abstract

The present invention relates to the technical field of steel cage forming, and in particular to a box-beam steel cage forming device and forming system, which aims to solve the problems that the existing steel cage forming devices cannot realize automatic manufacturing, have low production efficiency and poor product consistency. The box-beam steel cage forming device provided by the present invention includes a main reinforcement bending mechanism and a placement mechanism; the main reinforcement bending mechanism includes a fixed mold, a movable mold and a material stripping piece; the movable mold is configured to make linear motion in the up and down directions on the working plane of the fixed mold to stamp out the transverse main reinforcement; the material stripping piece is used to take out the main reinforcement and move it to the placement mechanism; the placement mechanism includes an umbrella-shaped strut assembly; the umbrella-shaped strut assembly is used to guide the taken out main reinforcement to a predetermined position. The box-beam steel cage forming device provided by the present invention uses a fixed mold and a movable mold to stamp and bend the linear steel bars to obtain the main reinforcement of the desired shape, and realizes automatic taking out and placement, thereby improving the consistency of the shape of the main reinforcement and the degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of steel cage forming, and in particular to a box beam steel cage forming device and a forming system. Background Art

[0002] Viaducts have been widely used in busy traffic areas on highways and urban roads. Viaduct bodies are mostly made of reinforced concrete structures. In order to make the bridge body have sufficient strength and rigidity, a steel cage must be set in the concrete of the box beam of the bridge body. However, the existing steel cage forming devices can only automatically manufacture steel cages with circular cross-sections, and the main reinforcement shape of the steel cage required for casting the box beam of the viaduct is not the common rectangular, circular or regular polygonal shape. This is also one of the difficulties in the current automation of special-shaped steel cage forming. At present, most of these special-shaped steel cages are bent by manually operated steel bar bending machines, and then the stirrups are manually placed and manually tied or welded. This manufacturing process requires manual intervention throughout the process, and automatic manufacturing cannot be achieved. There are problems such as low production efficiency and poor product consistency. Summary of the invention

[0003] The object of the present invention is to provide a box beam reinforcement cage forming device and a forming system to solve the problems that the existing reinforcement cage forming device cannot realize automatic manufacturing, has low production efficiency and poor product consistency.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] The invention provides a box-beam steel cage forming device, comprising a main reinforcement bending mechanism and a placing mechanism; two main reinforcement bending mechanisms are arranged on both sides of the placing mechanism; the main reinforcement bending mechanism comprises a fixed die, a movable die and a material stripping piece; a broken-line forming groove is arranged on the fixed die; the movable die is configured to perform linear motion in the up-and-down directions on the working plane of the fixed die, and the movable die cooperates with the fixed die to stamp and form transverse main reinforcements in the forming grooves; the material stripping piece is used to take the main reinforcements out of the forming grooves and move them to the placing mechanism; the placing mechanism comprises an umbrella-shaped strut assembly; the umbrella-shaped strut assembly is used to guide the taken-out main reinforcements to a predetermined position.

[0006] Furthermore, the material stripping piece is located in the forming groove before the material stripping operation is performed and is located below the main rib after the main rib is formed; the material stripping piece includes an ejector plate and a material stripping connecting rod; the two ejector plates are respectively connected to the two ends of the material stripping connecting rod; the material stripping connecting rod is configured to be movable upward to drive the ejector plate to move up, thereby ejecting the main rib out of the forming groove.

[0007] Furthermore, the plate surface where the ejector plate is located is perpendicular to the plane where the fixed mold is located on the vertical plane, and the top surface of the ejector plate is provided with an inclined surface, which is inclined downward.

[0008] Furthermore, the main reinforcement bending mechanism also includes a hook, which is connected to the movable mold; the hook is driven by the movable mold and is configured to hook the material withdrawal connecting rod and drive the material withdrawal connecting rod to move upward when moving upward.

[0009] Furthermore, the placement mechanism also includes a stirrup support, which includes two stirrup side plates arranged opposite to each other; a fixing groove for fixing the stirrup is arranged on the side wall of the stirrup side plate; the fixing grooves of the two stirrup side plates are arranged opposite to each other; and the umbrella-shaped strut assembly is arranged between the two stirrup side plates.

[0010] Furthermore, the umbrella strut assembly includes an umbrella cover connecting rod, a supporting connecting rod and a cross rod; one end of the two umbrella cover connecting rods is hinged, one end of the two supporting connecting rods is respectively hinged to the middle part of the two umbrella cover connecting rods, and the other ends of the two supporting connecting rods are respectively connected to the two ends of the cross rod to form a planar five-link structure; the outer surface of the umbrella cover connecting rod is used to receive the main ribs taken out from the unloaded part, and the angle between the two umbrella cover connecting rods is adjustable.

[0011] Furthermore, the main reinforcement bending mechanism also includes a cutting component arranged at the feed end of the forming groove; the cutting component includes a pressing block and a cutting knife; the pressing block is arranged above the forming groove and cooperates with the fixed mold to press the main reinforcement; the cutting knife is arranged on the side of the pressing block away from the feed end of the forming groove, and is used to cut the main reinforcement to obtain the main reinforcement of the required length.

[0012] Furthermore, the main rib bending mechanism also includes a wire feeding assembly arranged at the front end of the cutting assembly; the wire feeding assembly includes a wire feeding wheel and a pressure wheel; the axes of the wire feeding wheel and the pressure wheel are parallel, and a conveying channel for the main rib is formed between the wire feeding wheel and the pressure wheel; the wire feeding wheel rotates and drives the main rib to be conveyed into the forming groove along the tangential direction of the wire feeding wheel.

[0013] Another aspect of the present invention provides a box beam reinforcement cage forming system including the above-mentioned box beam reinforcement cage forming device.

[0014] Furthermore, the box beam reinforcement cage forming system also includes a main stirrup connecting device and a conveying device; the main stirrup connecting device is used to tie and fix the cross position of the arranged main reinforcement and stirrups; the conveying device is connected to the box beam reinforcement cage forming device, and is used to move the box beam reinforcement cage forming device to the main stirrup connecting device; the conveying device drives the box beam reinforcement cage forming device to move in a circular motion.

[0015] Based on the above technical solutions, the technical effects that can be achieved by the present invention are:

[0016] The box beam reinforcement cage forming device provided by the present invention comprises a main reinforcement bending mechanism and a placing mechanism; two main reinforcement bending mechanisms are arranged on both sides of the placing mechanism; the main reinforcement bending mechanism comprises a fixed die, a movable die and a material stripping piece; a broken line forming groove is arranged on the fixed die; the movable die is configured to be able to make linear motion in the up and down directions on the working plane of the fixed die, and the movable die cooperates with the fixed die to stamp and form the transverse main reinforcement in the forming groove; the material stripping piece is used to take the main reinforcement out of the forming groove and move it to the placing mechanism; the placing mechanism comprises an umbrella-shaped strut assembly; the umbrella-shaped strut assembly is used to guide the taken-out main reinforcement to a predetermined position.

[0017] The box beam steel cage forming device provided by the present invention punches and bends the straight steel bars to obtain the main bars of the required shape through the fixed mold and the movable mold, then takes out the main bars in the fixed mold through the material stripping piece and moves them to the placement mechanism, and the umbrella-shaped support rod assembly places the main bars at a predetermined position to form the steel cage, thereby eliminating the work of manually bending and placing the steel bars, and improving the degree of automation and work efficiency. At the same time, the production method of bending steel bars with the fixed mold and the movable mold improves the consistency of the product compared with manual bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a box beam reinforcement cage forming device provided by an embodiment of the present invention;

[0020] Figure 2 A schematic structural diagram of a main reinforcement bending mechanism provided by an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a main reinforcement bending mechanism provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a placement mechanism provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the structure of a molded connection seat provided in an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a box beam reinforcement cage in an embodiment of the present invention;

[0025] Figure 7 It is a front view of a box beam reinforcement cage in an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the structure of a movable mold provided by an embodiment of the present invention;

[0027] Fig. 9 A schematic diagram of the structure of a fixed mold provided by an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the structure of a material stripping piece provided in an embodiment of the present invention;

[0029] Fig.11 A schematic diagram of the structure of a cutting assembly provided by an embodiment of the present invention;

[0030] Fig.12 A side view of a cutting assembly provided by an embodiment of the present invention;

[0031] Fig.13 A schematic diagram of the structure of a wire feeding assembly provided in an embodiment of the present invention;

[0032] Fig.14 A side view of a wire feeding assembly provided by an embodiment of the present invention;

[0033] Fig.15 A schematic diagram of the structure of an umbrella-shaped support rod assembly provided by an embodiment of the present invention;

[0034] Fig.16 A schematic structural diagram of a box beam reinforcement cage forming system provided in an embodiment of the present invention.

[0035] Icons: 10-box beam reinforcement cage forming device; 20-main stirrup connecting device; 30-conveying device; 100-main reinforcement bending mechanism; 200-placing mechanism; 300-forming connection seat; 110-fixed mold; 120-movable mold; 130-removal piece; 140-hook; 150-forming telescopic cylinder; 160-forming linear guide; 170-limiting plate; 180-cutting assembly; 190-wire feeding assembly; 210-umbrella support rod assembly; 220-stirrup support; 230-connecting bottom plate; 131-ejection plate; 132-removal Material connecting rod; 181- material pressing block; 182- cutting knife; 183- knife seat; 184- buffer spring; 185- cutting telescopic cylinder; 186- cutting linear guide; 187- guide rail seat; 191- wire feeding wheel; 192- pressure wheel; 193- pressure spring; 194- wire feeding motor; 195- wire feeding bracket; 196- wheel axle; 211- umbrella connecting rod; 212- supporting connecting rod; 213- cross bar; 214- small electric push rod; 215- large electric push rod; 221- stirrup side plate; a- forming groove; b- fixing groove; c- limiting groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] Embodiment 1

[0039] Currently, most special-shaped steel cages are bent by manually operated steel bar bending machines, and then the stirrups are placed manually and manually tied or welded. This manufacturing process requires manual intervention throughout the entire process and cannot achieve automatic manufacturing. There are problems such as low production efficiency and poor product consistency.

[0040] In view of this, the present invention provides a box beam steel cage forming device, including a main reinforcement bending mechanism 100 and a placing mechanism 200; two main reinforcement bending mechanisms 100 are arranged on both sides of the placing mechanism 200; the main reinforcement bending mechanism 100 includes a fixed mold 110, a movable mold 120 and a stripping piece 130; a broken line forming groove a is provided on the fixed mold 110; the movable mold 120 is configured to be able to make linear motion in the up and down directions on the working plane of the fixed mold 110, and the movable mold 120 cooperates with the fixed mold 110 to stamp and form the transverse main reinforcement in the forming groove a; the stripping piece 130 is used to take the main reinforcement out of the forming groove a and move it to the placing mechanism 200; the placing mechanism 200 includes an umbrella-shaped strut assembly 210; the umbrella-shaped strut assembly 210 is used to guide the taken-out main reinforcement to a predetermined position.

[0041] The box beam steel cage forming device provided by the present invention punches and bends the straight steel bars to obtain the main bars of the required shape through the fixed mold 110 and the movable mold 120, then takes out the main bars in the fixed mold 110 through the material stripper 130 and moves them to the placement mechanism 200, and the umbrella-shaped support rod assembly 210 places the main bars at a predetermined position to form the steel cage, thereby eliminating the work of manually bending and placing the steel bars, and improving the degree of automation and work efficiency. At the same time, the production method of bending the steel bars with the fixed mold 110 and the movable mold 120 improves the consistency of the product compared with manual bending.

[0042] The following combination Figure 1-Figure 15 The structure and shape of the box beam reinforcement cage forming device provided in this embodiment are described in detail.

[0043] In this embodiment, four main bars form a rectangular steel cage, which is fixed in place by stirrups. Figure 6, Figure 7 As shown in the figure, the stirrups are made of steel bars bent into a rectangle with a notch on the top, and the steel bars on the notch side point diagonally downward to the notch, and the main bars are placed in the four corners of the stirrups. The four main bars are distinguished by upper and lower positions, that is, the two main bars on the top are the upper main bars, and the two main bars on the bottom are the lower main bars.

[0044] In an optional solution of this embodiment, the main rib bending mechanism 100 further includes two parallel formed linear guide rails 160 and a formed telescopic cylinder 150. Figure 2 , Figure 3 As shown, the forming linear guide 160 and the forming telescopic cylinder 150 are both vertically arranged, the guide rail of the forming linear guide 160 is installed on the side of the fixed mold 110, and the slider of the forming linear guide 160 is connected to the movable mold 120; the protruding end of the forming telescopic cylinder 150 is connected to the movable mold 120, and the fixed end is connected to the fixed mold 110, so as to push the fixed mold 110 to move downward along the forming linear guide 160 and cooperate with the movable mold 120, so as to stamp the linear steel bars into the required shape of the main reinforcement.

[0045] Furthermore, the force application position of the forming telescopic cylinder 150 on the movable mold 120 is symmetrical on both sides and is located on the center line of the movable mold 120, and the connection position between the extended end of the forming telescopic cylinder 150 and the movable mold 120 is lower, which increases the stability of the overall structure while ensuring the application of a larger thrust, and can help reduce the height of the main rib bending mechanism 100.

[0046] Specifically, the forming telescopic cylinder 150 may be an electric push rod, which has a simple structure and can provide sufficient thrust for stamping. Alternatively, a linear drive element such as an oil cylinder or an air cylinder may be selected.

[0047] In the optional solution of this embodiment, Figure 8 , Fig. 9 As shown, a groove corresponding to the forming groove a is opened on the movable mold 120, thereby forming a channel with a circular cross-section with the forming groove a, accommodating the main reinforcement therein, ensuring that the reinforcement is fixed when stamping the reinforcement and preventing the reinforcement from deviating during stamping.

[0048] In order to reduce energy consumption, weight-reducing holes are provided on the movable mold 120, such as Figure 8 As shown, a plurality of regular hexagonal weight-reducing holes are provided on the movable mold 120 to reduce the weight and load while ensuring the rigidity of the movable mold 120 itself, thereby reducing the power demand and corresponding energy consumption of the forming telescopic cylinder 150. Obviously, the weight-reducing holes can be provided in other shapes such as round holes and square holes.

[0049] Furthermore, in order to reduce the friction between the steel bar and the movable die 120 and the fixed die 110 when bending, rolling bearings are added at the positions where the steel bar slides relative to the movable die 120 and the fixed die 110, thereby reducing the friction. Specifically, the rolling bearings are added at the turning point of the movable die 120 and the fixed die 110.

[0050] When bending the steel bar, the steel bar can be divided into a compression zone, a neutral layer, and a tensile zone according to the deformation area. The farther the steel bar is from the neutral layer, the greater the material deformation and the corresponding internal stress. When the bending angle increases to a certain extent, the local stress of the steel bar exceeds the yield strength, and the deformation of the steel bar begins to change from elastic deformation to plastic deformation. This part of the deformation will not automatically recover after the external force is removed. In this embodiment, the steel bar after bending is in close contact with the fixed mold 110 and the movable mold 120. The steel bar rebound phenomenon can be avoided by setting the rebound compensation angle in the steel bar bending program. After the steel bar is initially bent, it is in close contact with the fixed mold 110 and the movable mold 120. The rebound angle is set to 5°, and the angle of each bend is set to 115°.

[0051] In an optional solution of this embodiment, the stripping piece 130 is located in the forming groove a before the stripping operation is performed and is located below the main rib after the main rib is formed. Fig.10 As shown, the material stripping member 130 includes an ejector plate 131 and an ejector connecting rod 132; the two ejector plates 131 are respectively connected to the two ends of the ejector connecting rod 132; the ejector connecting rod 132 is configured to be movable upward to drive the ejector plate 131 to move upward, thereby ejecting the main rib from the forming groove a. Before the main rib is formed, the upper end of the ejector plate 131 is not higher than the surface of the forming groove a, so as not to affect the stamping forming of the main rib.

[0052] Specifically, the plate surface where the ejector plate 131 is located is perpendicular to the plane where the fixed mold 110 is located on the vertical plane, and the top surface of the ejector plate 131 is provided with an inclined surface, which is inclined downward. Further, the inclined angle of the inclined surface is 45°. Fig. 9 As shown, a limiting groove c is provided on the fixed mold 110, the plane of the limiting groove c is perpendicular to the length direction of the forming groove and intersects with the forming groove a, and the ejection plate 131 is clamped in the limiting groove c and can slide in the vertical direction.

[0053] In order to prevent the stripping piece 130 from being deflected, the main rib bending mechanism 100 further includes a limit plate 170. The two limit plates 170 are arranged on both sides of the limit groove c, thereby closing the side of the limit groove c so that the ejection plate 131 can only move in the vertical direction. Figure 3 shown.

[0054] In the optional scheme of this embodiment, the main reinforcement bending mechanism 100 also includes a hook 140, which is connected to the movable mold 120 and driven by the movable mold 120, and is configured to hook the material withdrawal link 132 when moving upward and drive the material withdrawal link 132 to move upward, so that after the movable mold 120 is separated from the fixed mold 110, the main reinforcement can be pushed out of the forming groove a by the ejector plate 131, and then the main reinforcement falls into the placement mechanism 200 under the action of its own weight. When the movable mold 120 moves downward, the hook 140 moves downward accordingly, and the material withdrawal piece 130 falls under the action of its own weight. It should be noted that when the movable mold 120 starts to punch the steel bar, the ejector plate 131 has fallen into place, avoiding damage to the steel bar due to the ejector plate 131 protruding from the forming groove a when the movable mold 120 punches the steel bar.

[0055] In an optional solution of this embodiment, the placement mechanism 200 further includes a stirrup support 220, which includes two stirrup side plates 221 disposed opposite to each other, and a fixing groove b for fixing the stirrup is disposed on the side wall of the stirrup side plate 221. Figure 4 As shown, the fixing grooves b of the two stirrup side plates 221 are arranged opposite to each other, and the stirrups are clamped in the fixing grooves b; the umbrella-shaped strut assembly 210 is arranged between the two stirrup side plates 221. Specifically, three fixing grooves b are arranged along the length direction of the stirrup side plates 221, and stirrups are installed in each fixing groove b. The umbrella-shaped strut assembly 210 is respectively arranged at both ends of the stirrup side plates 221 in the length direction, and the main bars and stirrups are limited in position by the cooperation between the two umbrella-shaped strut assemblies 210 and the two stirrup side plates 221, so that the main bars and stirrups form a box beam reinforcement cage.

[0056] Furthermore, the umbrella support rod assembly 210 includes an umbrella surface connecting rod 211, a supporting connecting rod 212 and a cross rod 213. Fig.15 As shown, one end of the two umbrella canopy links 211 is hinged, one end of the two supporting links 212 is respectively hinged to the middle part of the two umbrella canopy links 211, and the other ends of the two supporting links 212 are respectively connected to the two ends of the cross bar 213, forming a planar five-link structure; the outer surface of the umbrella canopy link 211 is used to receive the main ribs taken out by the material removal piece 130, and the angle between the two umbrella canopy links 211 is adjustable.

[0057] In order to guide the lower main ribs and position the upper main ribs, the umbrella-shaped strut assembly 210 further includes a small electric push rod 214 and a large electric push rod 215. Fig.15As shown, the fixed end of the small electric push rod 214 is connected to the cross bar 213, and the extended end of the small electric push rod 214 is connected to the hinge point of the two umbrella surface connecting rods 211. The angle between the two umbrella surface connecting rods 211 is adjusted by the extension and contraction of the small electric push rod 214; the extended end of the large electric push rod 215 is connected to the cross bar 213, and is used to adjust the height of the two umbrella surface connecting rods 211. Further, the placement mechanism 200 also includes a horizontally arranged connecting bottom plate 230, and the fixed end of the large electric push rod 215 is connected to the upper surface of the connecting bottom plate 230.

[0058] When placing the lower main reinforcement, after the main reinforcement falls into the placing mechanism 200, it falls into the bottom of the stirrup along the gap between the notch of the stirrup and the umbrella connecting rod 211. To ensure that the lower main reinforcement is positioned at the corner of the stirrup, the small electric push rod 214 contracts, and the angle between the two umbrella connecting rods 211 increases, pushing the main reinforcement to both sides to the corner of the stirrup.

[0059] When placing the upper main reinforcement, the small electric push rod 214 is extended to reduce the angle between the two umbrella surface connecting rods 211 to prevent the umbrella surface connecting rod 211 from touching the lower main reinforcement when moving upward, causing the lower main reinforcement to shift; then the large electric push rod 215 is extended to ensure that the two umbrella surface connecting rods 211 will not touch the lower main reinforcement after the angle increases, and then the small electric push rod 214 is retracted to increase the angle between the two umbrella surface connecting rods 211 and the lateral span of the two umbrella surface connecting rods 211 is greater than the width of the stirrups, so as to ensure that the main reinforcement falls from the stirrup gap and falls at the intersection of the umbrella surface connecting rod 211 and the vertical edge of the stirrups, and finally the large electric push rod 215 is extended until the main reinforcement is pushed to the corner above the stirrups. That is, all the main reinforcements and stirrups are placed, and the structure of the box beam steel cage is obtained.

[0060] In order to improve the automation degree and continuous production capacity of the box beam reinforcement cage forming device, in the optional scheme of this embodiment, the box beam reinforcement cage forming device also includes a wire feeding assembly 190 and a cutting assembly 180, and the specific shape and structure are as follows:

[0061] like Figure 2 , Figure 3 As shown, the cutting assembly 180 is disposed between the molding groove a and the wire feeding assembly 190 .

[0062] Specifically, Fig.13 , Fig.14As shown, the wire feeding assembly 190 includes a wire feeding wheel 191, a pressure wheel 192, a pressure spring 193, a wheel shaft 196 and a wire feeding bracket 195; the axes of the wire feeding wheel 191 and the pressure wheel 192 are parallel, and a conveying channel for the main rib is formed between the wire feeding wheel 191 and the pressure wheel 192; the wire feeding wheel 191 rotates and drives the main rib to be conveyed into the forming groove a along the tangent direction of the wire feeding wheel 191; the pressure spring 193 is connected to the pressure wheel 192, and the pressure spring 193 applies a thrust to the pressure wheel 192, so that the pressure wheel 192 presses the main rib. The pressure wheel 192 is installed on the wheel shaft 196, and the pressure spring 193 is installed vertically, one end of which is connected to the wheel shaft 196, and the other end is connected to the wire feeding bracket 195, and applies a downward thrust to the wheel shaft 196.

[0063] Furthermore, the pressing wheel 192 is narrow in the middle and wide at both ends, forming a groove, thereby limiting the position of the steel bars and preventing the steel bars from deviating during transportation.

[0064] In order to reduce friction during operation, a ball bearing is provided between the wheel axle 196 and the pressure wheel 192 to reduce friction.

[0065] In order to prevent slippage between the steel bar and the wire feeding wheel 191, resulting in the actual wire feeding length being less than the theoretical value, the outer cylindrical surface of the wire feeding wheel 191 is provided with teeth similar to the outer ring of a ratchet, which are used to increase the friction between the wire feeding wheel 191 and the steel bar in one direction.

[0066] In this embodiment, the wire feeding assembly 190 further includes a wire feeding motor 194. The wire feeding motor 194 is mounted on the wire feeding bracket 195, and the output shaft of the wire feeding motor 194 is connected to the wire feeding wheel 191. In order to control the wire feeding length, the wire feeding motor 194 can use a stepping motor, thereby controlling the rotation angle of the wire feeding wheel 191 to ensure the accuracy of the wire feeding length.

[0067] Obviously, the box beam steel cage forming device also includes a storage wheel for storing steel bars so as to feed the wire feeding assembly 190.

[0068] In addition, if Fig. 9 As shown, a wire feeding hole is also provided on the fixed die 110. The wire feeding hole penetrates the fixed die 110 in the length direction of the steel bar, and the wire feeding hole is aligned with the feeding end and the discharging end of the forming groove a to ensure that the steel bar enters the fixed die 110 and has a sufficient length of steel bar for stamping.

[0069] In this embodiment, the cutting assembly 180 is disposed at the feeding end of the forming groove a. Fig.11 , Fig.12 As shown, the cutting assembly 180 includes a pressing block 181 and a cutting knife 182; the pressing block 181 is arranged above the molding groove a, and cooperates with the fixed mold 110 to press the main rib; the cutting knife 182 is arranged on the side of the pressing block 181 away from the feeding end of the molding groove a, and is used to cut the main rib to obtain the main rib of the required length.

[0070] Furthermore, the cutting assembly 180 also includes a knife seat 183 and a buffer spring 184. The cutting knife 182 is mounted on the knife seat 183; the buffer spring 184 is vertically arranged, one end of which is connected to the upper end of the pressure block 181, and the other end is connected to the lower end of the knife seat 183. When the knife seat 183 moves downward, the pressure block 181 first contacts the steel bar and presses the steel bar tightly. As the knife seat 183 continues to move downward, the buffer spring 184 is compressed and provides thrust to the pressure block 181. At this time, the cutting knife 182 continues to move downward and cooperates with the fixed mold 110 to cut the steel bar. The buffer spring 184 keeps the pressure of the pressure block 181 on the steel bar, so that the cutting knife 182 can continue to move downward to cut the steel bar after the pressure block 181 stops moving.

[0071] In order to ensure that the buffer spring 184 does not twist or deform, a guide rod can be provided. The guide rod is coaxially arranged with the buffer spring 184 and fixedly connected to the pressing block 181. At the same time, a guide hole is opened on the knife seat 183. The guide rod is inserted into the guide hole and slides in the guide hole, thereby ensuring the normal operation of the buffer spring 184.

[0072] The cutting assembly 180 also includes a cutting telescopic cylinder 185, a cutting linear guide rail 186 and a guide rail seat 187. The fixed end of the cutting telescopic cylinder 185 is mounted on the fixed die 110, and the extended end is hinged to the knife seat 183, thereby pushing it to move downward and enabling the cutting knife 182 to complete the cutting action. The guide rail seat 187 is connected to the fixed die 110, the cutting linear guide rail 186 is mounted on the guide rail seat 187, and the slider of the cutting linear guide rail 186 is connected to the knife seat 183 to ensure that the knife seat 183 moves in the vertical direction and keeps the cutting knife 182 stable.

[0073] In an optional solution of this embodiment, the box beam reinforcement cage forming device further includes a forming connection seat 300, such as Figure 1 , Figure 5 As shown, the fixed mold 110 , the stirrup support 220 and the connecting base plate 230 are all installed on the forming connecting seat 300 .

[0074] The working process of the box beam reinforcement cage forming device provided in this embodiment is as follows:

[0075] The wire feeding assembly 190 feeds the steel bar into the forming groove a. Since the steel bar is in a straight line, the middle of the steel bar is suspended. When the length of the steel bar reaches the set value, the cutting assembly 180 cuts the steel bar to obtain the required length of the steel bar. It should be noted that after the steel bar is cut, the cutting telescopic cylinder 185 needs to be retracted and the pressing block 181 is lifted to prevent the pressing block 181 from pressing the steel bar and affecting the subsequent stamping forming.

[0076] Then the forming telescopic cylinder 150 extends to push the movable mold 120 downward, and after the movable mold 120 and the fixed mold 110 are closed, the steel bar is bent and formed to obtain the main reinforcement. Then the forming telescopic cylinder 150 retracts to drive the movable mold 120 and the hook 140 to move upward. During the upward movement, the hook 140 hooks the material withdrawal connecting rod 132 and drives the material withdrawal connecting rod 132 to move upward, so that the ejection plate 131 ejects the main reinforcement from the forming groove a. Under the action of its own weight, the main reinforcement falls along the inclined surface of the ejection plate 131 to the placement mechanism 200.

[0077] One main reinforcement is dropped into the placing mechanism 200 from each of the two main reinforcement bending mechanisms 100 located on both sides of the placing mechanism 200 , and the two main reinforcements drop from the notches of the stirrups along the two umbrella surface connecting rods 211 to the inside of the stirrups.

[0078] First, the lower main reinforcement is placed. When the main reinforcement falls into the placement mechanism 200, it falls into the bottom of the stirrup along the gap between the notch of the stirrup and the umbrella connecting rod 211. To ensure that the lower main reinforcement is positioned at the corner of the stirrup, the small electric push rod 214 contracts, and the angle between the two umbrella connecting rods 211 increases, pushing the main reinforcement to both sides to the corner of the stirrup.

[0079] Then, the upper main reinforcement is placed, and the small electric push rod 214 is extended to reduce the angle between the two umbrella surface connecting rods 211 to prevent the umbrella surface connecting rod 211 from touching the lower main reinforcement when moving upward, causing the lower main reinforcement to shift; then the large electric push rod 215 is extended to ensure that the two umbrella surface connecting rods 211 will not touch the lower main reinforcement after the angle increases, and then the small electric push rod 214 is retracted to increase the angle between the two umbrella surface connecting rods 211 and the lateral span of the two umbrella surface connecting rods 211 is greater than the width of the stirrups, so as to ensure that the main reinforcement falls from the stirrup gap and falls at the intersection of the umbrella surface connecting rod 211 and the vertical edge of the stirrups, and finally the large electric push rod 215 is extended until the main reinforcement is pushed to the corner above the stirrups. That is, all the main reinforcements and stirrups are placed, and the formed box beam reinforcement cage is obtained.

[0080] This embodiment avoids manual operation and improves production efficiency by automating feeding, cutting, bending, picking and placing. At the same time, the consistency of the product is improved through the use of the fixed mold 110, the movable mold 120 and the placing mechanism 200.

[0081] In addition, different fixed molds 110 and movable molds 120 can be selected according to different main reinforcement shapes to achieve the molding of box beam reinforcement cages with different shapes and structures.

[0082] Embodiment 2

[0083] This embodiment provides a box beam reinforcement cage forming system, including the box beam reinforcement cage forming device 10 in the first embodiment.

[0084] In an optional solution of this embodiment, the box beam reinforcement cage forming system further includes a main stirrup connecting device 20 and a conveying device 30. Fig.16 As shown, the main stirrup connecting device 20 is used to tie and fix the cross position of the arranged main reinforcement and stirrups; the conveying device 30 is connected to the box beam reinforcement cage forming device 10, and is used to move the box beam reinforcement cage forming device 10 to the main stirrup connecting device 20; the conveying device 30 drives the box beam reinforcement cage forming device 10 to move in a circular shape.

[0085] After the box beam reinforcement cage forming device 10 forms the box beam reinforcement cage, the conveying device 30 moves the box beam reinforcement cage forming device 10 and the box beam reinforcement cage into the main stirrup connection device 20 and connects the main reinforcement and the stirrup at the intersection by welding or wire binding. The conveying device 30 uses chain conveying, including a driving sprocket and three driven sprockets, and the four sprockets are arranged in a rectangular shape, so that the box beam reinforcement cage forming device 10 moves along the chain.

[0086] Furthermore, according to production needs, multiple box beam reinforcement cage forming devices 10 and main stirrup connecting devices 20 can be set on the conveying device 30 to improve production efficiency. It is also possible to add a driven sprocket to the conveying device 30, change the direction of the chain, and lengthen the chain to accommodate more devices.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A box beam reinforcement cage forming device, characterized in that: It comprises a main rib bending mechanism (100) and a placement mechanism (200); two main rib bending mechanisms (100) are arranged on both sides of the placement mechanism (200); The main rib bending mechanism (100) comprises a fixed die (110), a movable die (120) and a material stripping piece (130); The fixed die (110) is provided with a folded line-shaped forming groove (a); the movable die (120) is configured to be able to perform linear motion in the up-and-down directions on the working plane of the fixed die (110); the movable die (120) cooperates with the fixed die (110) to stamp and form the transverse main ribs in the forming groove (a); the stripping piece (130) is used to take the main ribs out of the forming groove (a) and move them to the placement mechanism (200); The placing mechanism (200) comprises an umbrella-shaped support rod assembly (210), and the umbrella-shaped support rod assembly (210) is used to guide the removed main reinforcement to a predetermined position; The material stripping piece (130) is located in the forming groove (a) before the material stripping operation is performed and is located below the main rib after the main rib is formed; The material-removing member (130) comprises an ejection plate (131) and a material-removing connecting rod (132); the two ejection plates (131) are respectively connected to two ends of the material-removing connecting rod (132); The material-removing connecting rod (132) is configured to be movable upwards to drive the ejection plate (131) to move upwards, thereby ejecting the main rib out of the forming groove (a); The plate surface where the ejector plate (131) is located is perpendicular to the plane where the fixed mold (110) is located on the vertical plane, and the top surface of the ejector plate (131) is provided with an inclined surface, which is inclined downward; The umbrella-shaped strut assembly (210) comprises an umbrella surface connecting rod (211), a supporting connecting rod (212) and a cross rod (213); One end of the two umbrella cover connecting rods (211) is hinged, one end of the two supporting connecting rods (212) is respectively hinged to the middle of the two umbrella cover connecting rods (211), and the other ends of the two supporting connecting rods (212) are respectively connected to the two ends of the cross bar (213), so as to form a planar five-link structure; The outer surface of the umbrella cover connecting rod (211) is used to receive the main rib taken out by the material stripping piece (130), and the angle between the two umbrella cover connecting rods (211) is adjustable; The umbrella-shaped support rod assembly (210) further comprises a small electric push rod (214) and a large electric push rod (215); the fixed end of the small electric push rod (214) is connected to the cross bar (213); the extended end of the small electric push rod (214) is connected to the hinge point of two umbrella surface connecting rods (211); the angle between the two umbrella surface connecting rods (211) is adjusted by telescoping the small electric push rod (214); the extended end of the large electric push rod (215) is connected to the cross bar (213) and is used to adjust the height of the two umbrella surface connecting rods (211).

2. The box beam reinforcement cage forming device according to claim 1 is characterized in that: The main rib bending mechanism (100) further comprises a hook (140), wherein the hook (140) is connected to the movable mold (120); The hook (140) is driven by the movable mold (120) and is configured to hook the material-returning connecting rod (132) and drive the material-returning connecting rod (132) to move upward when moving upward.

3. The box beam reinforcement cage forming device according to claim 1 is characterized in that: The placing mechanism (200) further comprises a stirrup support (220), wherein the stirrup support (220) comprises two stirrup side plates (221) arranged opposite to each other; A fixing groove (b) for fixing the stirrup is provided on the side wall of the stirrup side plate (221); the fixing grooves (b) of the two stirrup side plates (221) are arranged opposite to each other; The umbrella-shaped strut assembly (210) is arranged between the two stirrup side plates (221).

4. The box beam reinforcement cage forming device according to claim 1, characterized in that: The main rib bending mechanism (100) further comprises a cutting assembly (180) arranged at the feeding end of the forming groove (a); The cutting assembly (180) comprises a pressing block (181) and a cutting knife (182); The pressing block (181) is arranged above the forming groove (a) and cooperates with the fixed die (110) to press the main ribs; The cutting knife (182) is arranged on a side of the pressing block (181) away from the feeding end of the forming groove (a), and is used to cut the main rib to obtain the main rib of a required length.

5. The box beam reinforcement cage forming device according to claim 4 is characterized in that: The main rib bending mechanism (100) further comprises a wire feeding assembly (190) arranged at the front end of the cutting assembly (180); The wire feeding assembly (190) comprises a wire feeding wheel (191) and a pressure wheel (192); The axes of the wire feeding wheel (191) and the pressing wheel (192) are parallel, and a conveying channel for the main rib is formed between the wire feeding wheel (191) and the pressing wheel (192); The wire feeding wheel (191) rotates and drives the main rib to be transported into the forming groove (a) along the tangential direction of the wire feeding wheel (191).

6. A box beam reinforcement cage forming system, characterized in that: It comprises a box beam reinforcement cage forming device (10) as described in any one of claims 1 to 5.

7. The box beam reinforcement cage forming system according to claim 6, characterized in that: It also includes a main stirrup connecting device (20) and a conveying device (30); The main stirrup connecting device (20) is used to bind and fix the intersection of the arranged main reinforcement and stirrups; The conveying device (30) is connected to the box beam reinforcement cage forming device (10) and is used to move the box beam reinforcement cage forming device (10) to the main stirrup connecting device (20); The conveying device (30) drives the box beam reinforcement cage forming device (10) to move in a circular motion.

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