Automatic angle steel machining production line

Abstract

The invention relates to the technical field of angle steel production, and particularly discloses an automatic angle steel machining production line which comprises a heating mechanism, a feeding mechanism and a discharging mechanism. The forming mechanism is used for rolling the blank and rolling the blank with the rectangular section into the angle steel with the L-shaped section; the shearing mechanism is used for cutting off the formed angle steel; the cooling mechanism is used for intermittently conveying the cut angle steel; and the overturning mechanism is used for overturning the angle steel in the conveying process. According to the angle steel production line, the working procedures of heating, forming, shearing, cooling, overturning and the like are integrated, full-process automation of angle steel production is achieved, the problems of low efficiency and high manual dependence degree caused by traditional sectional type production are solved, the production efficiency is improved, and the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of angle steel production, in particular to an automatic angle steel processing production line. BACKGROUND

[0002] Angle steel, commonly known as angle iron, is a long strip steel material with two perpendicular sides forming an angle, and its cross section is L-shaped. As a basic type of steel material, angle steel has been widely used in many fields such as construction engineering, power towers, bridges, machinery manufacturing and storage racks due to its simple structure, good load-bearing capacity and relatively low cost. Therefore, the production efficiency and product quality of angle steel are directly related to the engineering quality, safety and economic benefits of the downstream industry.

[0003] Traditional angle steel production processes often rely on segmented operations and a large amount of manual operations. Typically, the production process is divided into multiple independent processes, such as billet heating, multi-pass rolling, sizing shearing, cooling and collecting, etc. Between these processes, manual intervention is often required for material transfer and connection, which prevents the production line from achieving continuous and smooth automatic operation, resulting in a large amount of waiting time and material turnaround time, forming a production bottleneck and restricting overall production. At the same time, the frequency of manual operation is high, the labor intensity is large, and it is also difficult to meet the demand of large-scale and fast-paced modern production. SUMMARY

[0004] In order to improve production efficiency, the present application provides an automatic angle steel processing production line.

[0005] The automatic angle steel processing production line provided by the present application adopts the following technical solution: An automatic angle steel processing production line, comprising a heating mechanism for heating the billet; a forming mechanism comprising vertical rolling mills and horizontal rolling mills arranged alternately along the rolling path, for rolling the billet to form angle steel with an L-shaped cross section from a rectangular cross section; a shearing mechanism for cutting the formed angle steel; a cooling mechanism comprising a support frame and a transfer assembly, the support frame being used to support the angle steel so that multiple angle steels are arranged at intervals along the width direction of the support frame, and the transfer assembly being used to intermittently convey the cut angle steel; a turnover mechanism comprising a bearing block and a first driving component, the bearing block comprising two block bodies connected to each other, both block bodies being used to abut against the angle steel, one of the block bodies abutting against the angle steel while the other block body is in a separated state from the angle steel; the bearing block is rotationally connected to the support frame about an axis parallel to the length direction of the support frame, and the first driving component is used to drive the bearing block to rotate so as to drive the angle steel to turn over By adopting the technical scheme, the heating, forming, shearing and cooling core processes required for angle steel production are integrated into an organic whole, the blank automatically flows between the mechanisms, and the full-process continuous automatic production from the blank to the finished angle steel is realized. The scheme effectively solves the problems of poor process connection and long material turnover waiting time caused by the traditional segmented operation, and does not require manual intervention between processes, thereby reducing the labor intensity and improving the overall production efficiency.

[0006] In the scheme, a turnover mechanism is further arranged. When the angle steel is located on the bearing block, the first driving part drives the bearing block to rotate around the axis, thereby stably driving the angle steel to realize turnover. Since the included angle between the two block bodies is obtuse, the two block bodies will not be in contact with the angle steel at the same time. Therefore, during the cooling and conveying process, the turnover action is completed, so that each surface of the angle steel can be in full contact with the air, which helps to realize more uniform and faster cooling, avoids internal stress and deformation caused by uneven cooling, and thus improves the final mechanical properties and straightness of the angle steel.

[0007] In addition, the turnover action will give the angle steel a slight vibration and impact, which helps to crack and peel off the oxide skin that is not firmly attached due to vibration. The peeled-off oxide skin can directly fall into the gap below the cooling mechanism, instead of accumulating between the angle steel and the support surface. Furthermore, since the bearing block itself is periodically rotated, even if a small amount of oxide skin falls on the support surface, the next time the turnover occurs, the support surface will become a side surface or a bottom surface, and the oxide skin on the surface will slide down due to gravity or inertia. This makes the bearing block have a certain self-cleaning ability, avoiding the accumulation of oxide skin at the support point, thereby ensuring the long-term stability of the contact state and heat transfer conditions of the angle steel and the support block.

[0008] Optionally, the vertical rolling mill is used for lateral rolling of the blank to control the leg height and leg width of the angle steel, and the horizontal rolling mill is used for horizontal rolling of the blank to control the thickness of the angle steel.

[0009] By adopting the technical scheme, the vertical rolling mill and the horizontal rolling mill are alternately arranged, which can control the plastic deformation of the blank in two directions. The vertical rolling mill is mainly responsible for accurately processing the leg size, such as leg height and leg width, of the angle steel, while the horizontal rolling mill focuses on controlling the overall thickness of the angle steel. This cooperative working mode decomposes the complex forming task, which helps to realize accurate control of the cross-sectional size of the angle steel, thereby improving the size accuracy and forming quality of the final product.

[0010] Optionally, the vertical rolling mill comprises a first rack, a rotating power component, a bidirectional screw rod and first bearing seats, two first bearing seats are provided, each of the first bearing seats is rotationally connected with a vertical roller, the first bearing seats are slidingly connected with the first rack, two ends of the bidirectional screw rod are threadedly connected with the two first bearing seats respectively, and the rotating power component is used to drive the bidirectional screw rod to rotate, so that the two first bearing seats slide reversely.

[0011] By adopting the above technical scheme, when the rotating power component drives the bidirectional screw rod to rotate, the two first bearing seats connected through threads will perform synchronous and opposite linear motions, the symmetrical adjustment of the two vertical rollers is realized by ingeniously utilizing a single power source, the transmission system is simplified, the rolling center line is kept unchanged during the adjustment process, the stability of the blank during the rolling process is facilitated to be ensured, and the accuracy of the leg height and leg width size control is further improved.

[0012] Optionally, the horizontal rolling mill comprises a second rack, a second bearing seat, a third bearing seat and a pressing assembly, the second bearing seat is slidingly connected with the second rack, the second bearing seat and the third bearing seat are both rotationally connected with horizontal rollers, and the pressing assembly is connected with the second rack and is used to drive the second bearing seat to move and be locked.

[0013] By adopting the above technical scheme, the second bearing seat is slidingly adjustable, the third bearing seat is relatively fixed, and the movable bearing seat is driven and locked by the special pressing assembly, so that the horizontal rolling mill is more direct and convenient to operate when the position of the upper roller is adjusted to change the rolling thickness. The locking function provided by the pressing assembly ensures that the position of the upper roller can be kept stable when a great rolling force is borne, so that the uniformity and consistency of the angle steel thickness are ensured.

[0014] Optionally, the support frame comprises a frame body and support rods arranged on the frame body, a plurality of support rods are arranged along the length direction of the frame body, and the plurality of support rods are arranged in parallel and at intervals; the transfer assembly comprises a plurality of bearing plates and a second driving component, the bearing plates are arranged in a staggered manner with the support rods, a top wall of the bearing plate is used to support the angle steel, and the second driving component is used to drive the bearing plate to move along the height direction and the width direction of the frame body.

[0015] By adopting the technical scheme, the bearing plate and the supporting rod are staggered, the bearing plate is driven by the second driving component to move in the height and width directions, the step-by-step conveying of the angle steel can be realized, the conveying mode enables the angle steel to move intermittently in the transverse direction on the cooling bed, the angle steel has sufficient time to contact with air to be naturally cooled during the movement, the ordered arrangement and conveying of the angle steel on the cooling bed are realized, favorable conditions are created for the automatic collection and arrangement of the subsequent processes, and the automation degree of the cooling and conveying links is improved.

[0016] Optionally, the cooling mechanism is provided with two groups, and the two groups of cooling mechanisms are arranged in parallel.

[0017] By adopting the technical scheme, the capacity and processing capacity of the cooling area are doubled by arranging two groups of parallel cooling mechanisms, the production line can alternately or selectively distribute the angle steel to the two cooling beds according to needs, the problem that a single cooling bed becomes a production bottleneck due to the processing speed failing to keep up with the output speed of the previous process is effectively avoided, the method is especially suitable for high-yield production requirements, and the method is helpful to improve the collaborative working capacity and overall capacity of the whole production line.

[0018] Optionally, a guide mechanism is arranged between the shearing mechanism and the cooling mechanism, the guide mechanism comprises a main track, branch tracks and a deflection block, one end of the main track faces the shearing mechanism, the other end of the main track is communicated with the branch tracks, the branch tracks are provided in two, the first branch track leads to one group of the cooling mechanisms, the second branch track leads to the other group of the cooling mechanisms, and the deflection block is rotationally connected to the connection position of the main track and the branch tracks, so that the main track is communicated with one of the two branch tracks.

[0019] By adopting the technical scheme, the angle steel conveyed from the main track can be flexibly guided to any one of the two branch tracks by rotating the deflection block, the structure realizes accurate control and intelligent distribution of the flow direction of the angle steel, and is a prerequisite for realizing the collaborative work of the two groups of cooling mechanisms. The automatic system can control the deflection block according to the real-time occupation of the cooling bed, and the angle steel is efficiently distributed to the idle or more suitable cooling mechanism, so that the automatic distribution of the production material is realized, and the production rhythm is optimized.

[0020] Optionally, the block body is provided with a support member, the support member comprises a support column and an elastic member, the support column is slidably arranged on the block body, one end of the support column is used for abutting against the angle steel, and the elastic member is connected between the block body and the support column.

[0021] By adopting the technical scheme, before the bearing block starts to overturn, the top end of the supporting column and the angle steel are in a spaced arrangement state, when the bearing block drives the angle steel to overturn a smaller angle, the top end of the supporting column will abut against the angle steel, with the overturning of the angle steel, the angle steel will gradually press down the top end of the supporting column and make the elastic member be stretched, so that the supporting column can support the angle steel during the overturning process, avoiding the angle steel only moving horizontally without overturning, thereby ensuring the smooth progress of the overturning process of the angle steel; in addition, during the overturning process of the angle steel, one of the elastic members will be stretched, so as to elastically support the angle steel and achieve a certain buffering effect, thereby protecting the angle steel and the overturning mechanism.

[0022] In summary, the present application has the following beneficial technical effects: 1. By integrated design, the heating, forming, shearing, cooling and overturning processes are integrated, realizing the full-process automation of the angle steel production, solving the problems of low efficiency and high labor dependence caused by the traditional segmented production, improving the production efficiency and reducing the labor intensity.

[0023] 2. The vertical and horizontal rolling mills are combined, and the bidirectional screw rod symmetric adjustment and the independent pressing assembly are matched, so as to realize the accurate control of the multi-dimensional sizes such as the leg height, leg width and thickness of the angle steel, and improve the product forming quality; by setting the overturning mechanism, the uniform cooling of the angle steel is promoted, and the mechanical properties of the finished angle steel are improved.

[0024] 3. By setting the double cooling mechanism and the turnout type guiding mechanism, the intelligent diversion of the production materials and the doubling of the cooling capacity are realized, solving the cooling bottleneck problem under high yield, enhancing the flexibility and overall capacity of the production line, and making the whole line run more efficiently and smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram of the present application after the overturning mechanism is hidden; Figure 2 is the structure schematic diagram of the vertical rolling mill used for showing in the present application embodiment; Figure 3 is the structure schematic diagram of the horizontal rolling mill used for showing in the present application embodiment; Figure 4 is the structure schematic diagram of the pressing assembly used for showing in the present application embodiment; Figure 5 is Figure 1 is the local enlarged schematic diagram of A in the figure; Figure 6 is the top view of the cooling mechanism in the present application embodiment; Figure 7 is the perspective view of the second driving component used for showing in the present application embodiment; Figure 8 is a structural schematic diagram of a turnover mechanism according to an embodiment of the present application; Figure 9 is Figure 8 is a local enlarged schematic diagram at B in Figure 10 is a top view of a turnover mechanism according to an embodiment of the present application.

[0026] Reference signs: 1, heating mechanism; 2, forming mechanism; 21, vertical rolling mill; 211, first rack; 212, rotating power element; 213, bidirectional screw rod; 214, first bearing seat; 215, vertical roller; 22, horizontal rolling mill; 221, second rack; 222, second bearing seat; 223, third bearing seat; 224, horizontal roller; 225, pressing assembly; 2251, first motor; 2252, worm; 2253, worm wheel; 2254, screw rod; 3, shearing mechanism; 4, cooling mechanism; 41, support frame; 411, frame body; 412, support rod; 42, transfer assembly; 421, bearing plate; 422, second driving component; 4221, sliding seat; 4222, lifting frame; 4223, first oil cylinder; 4224, second oil cylinder; 5, turnover mechanism; 51, bearing block; 511, rotating rod; 52, first driving component; 521, chain wheel; 522, chain; 523, second motor; 6, guiding mechanism; 61, main track; 62, sub-track; 63, deflection block; 7, blanking mechanism; 71, conveying roller. 8, support element; 81, support column; 82, elastic element. DETAILED DESCRIPTION

[0027] The following will be described in further detail. Figures 1-10 The present application is further described in detail.

[0028] An automatic angle steel processing production line is disclosed, which is used to process a rectangular-section blank into an L-shaped angle steel of a specified size through a series of automatic devices. Referring to Figure 1 , the automatic angle steel processing production line comprises a heating mechanism 1. The heating mechanism 1 is a heat-accumulating natural gas heating furnace. The heating mechanism 1 is used to heat the blank at the beginning of the production process, so that the blank reaches a plastic state suitable for rolling deformation. After the blank is heated to a predetermined temperature, it will automatically enter the subsequent forming mechanism 2.

[0029] The forming mechanism 2 is a core part for realizing the transformation of the blank from a rectangular section to an L-shaped section. The forming mechanism 2 comprises a vertical rolling mill 21 and a horizontal rolling mill 22 arranged alternately along the rolling direction. The vertical rolling mill 21 and the horizontal rolling mill 22 work cooperatively: when the blank passes through the vertical rolling mill 21, a pair of vertical rollers 215 will extrude the two sides of the blank (refer to Figure 2), this process is mainly used for precise control of the leg height and leg width of the final angle steel; when the blank passes through the horizontal rolling mill 22, a pair of horizontal rolling rollers 224 will roll the upper and lower surfaces of the blank (see Figure 3 ), this process is mainly used for precise control of the leg thickness of the angle steel. This clear division of labor and alternating rolling mode can finely adjust the cross-sectional size of the angle steel and ensure the forming quality.

[0030] Referring to Figure 2 , in order to realize precise adjustment of the rolling size, the vertical rolling mill 21 comprises a first rack 211, a rotating power element 212, a bidirectional screw rod 213 and two first bearing seats 214. The two first bearing seats 214 can slide left and right on the first rack 211, and a vertical rolling roller 215 is rotatably arranged on each first bearing seat 214. The bidirectional screw rod 213 is horizontally arranged between the two first bearing seats 214, one end of the bidirectional screw rod 213 is left-handed thread, the other end is right-handed thread, and the two ends of the bidirectional screw rod 213 are threadedly connected with the two first bearing seats 214, respectively. The rotating power element 212 is a motor, which is fixedly installed on the first rack 211, and the bidirectional screw rod 213 is coaxially connected with the output shaft of the rotating power element 212. In operation, the rotating power element 212 drives the bidirectional screw rod 213 to rotate, and the two first bearing seats 214 will synchronously slide towards or away from each other due to the opposite thread directions, thereby precisely and symmetrically adjusting the distance between the two vertical rolling rollers 215, ensuring the stability of the rolling center line and facilitating the improvement of the precision of the leg size control of the angle steel.

[0031] Referring to Figure 3 , the horizontal rolling mill 22 comprises a second rack 221, a movable second bearing seat 222, a relatively fixed third bearing seat 223 and two groups of pressing assemblies 225. The second bearing seat 222 is located above the third bearing seat 223, and is vertically slidably connected to the second rack 221; the third bearing seat 223 is fixedly installed on the second rack 221. The second bearing seat 222 and the third bearing seat 223 are both rotatably connected with the horizontal rolling roller 224. The pressing assemblies 225 are installed on the top of the second rack 221 and are located at the two ends of the second bearing seat 222, respectively, and the pressing assemblies 225 can drive the second bearing seat 222 to move downward to reduce the roller spacing, or to move upward to increase the spacing. After adjustment, the pressing assemblies 225 can also firmly lock the second bearing seat 222 in the current position, thereby resisting the huge rolling force and ensuring the stability of the angle steel thickness during rolling.

[0032] Referring to Figure 4The down-pressing assembly 225 comprises a first motor 2251, a worm 2252, a worm wheel 2253 and a screw rod 2254. The first motor 2251 is fixedly installed on the second rack 221, and the output shaft of the first motor 2251 is horizontally arranged and coaxially connected with the worm 2252. The screw rod 2254 is vertically arranged, and the bottom end of the screw rod 2254 is threadedly connected with the second bearing seat 222 which is slidingly arranged. The worm wheel 2253 is coaxially and fixedly connected with the top end of the screw rod 2254, and the worm wheel 2253 is engaged with the worm 2252. Thus, when the first motor 2251 is started, the worm 2252 is driven to rotate, the worm wheel 2253 is driven to rotate by the worm 2252, and the screw rod 2254 is driven to rotate by the worm wheel 2253, so that the second bearing seat 222 is vertically moved, thereby adjusting the distance between the upper and lower horizontal rollers 224. The thread angle of the screw rod 2254 is smaller than the equivalent friction angle, so that the screw rod 2254 has self-locking capability. Furthermore, the worm wheel 2253 and the worm 2252 can be self-locked, thereby further ensuring the stability of the second bearing seat 222 after position adjustment.

[0033] With reference to Figure 1 The end of the forming mechanism 2 is provided with a shearing mechanism 3. When the angle steel is rolled and formed, the shearing mechanism 3 will cut the angle steel according to the preset length. The shearing mechanism 3 adopts a flying shear machine, which can cut the angle steel in a moving state, thereby ensuring the continuity of the production process and work efficiency.

[0034] The flying shear machine comprises upper and lower knife holders, and the knife holders are provided with shearing blades matched with the cross-sectional shape of the angle steel. The detection device in the system, such as a speed measuring wheel or a laser speed measuring instrument, can monitor the movement speed of the angle steel conveyed from the front in real time. When shearing is needed, the control system drives the running mechanism of the knife holder to accelerate the shearing blade in the horizontal direction until the horizontal speed of the shearing blade is completely consistent with the movement speed of the angle steel, so as to realize synchronous tracking. During this short synchronous movement, the mechanism driving the vertical movement of the knife holder will quickly act to drive the upper and lower shearing blades to close, thereby completing the shearing of the angle steel. After the shearing action is completed, the shearing blade will quickly open and decelerate to return to the initial position, waiting for the next shearing instruction. Through this series of high-speed coordinated actions, the flying shear machine realizes accurate length cutting of the angle steel without stopping the conveying of the angle steel. The flying shear machine is a prior art device, and the figure only shows the position of the flying shear machine relative to other components.

[0035] With reference to Figure 1 and Figure 5The end of the shearing mechanism 3 is provided with a cooling mechanism 4, and the high-temperature angle steel after being cut off is transported to the cooling mechanism 4 for cooling and temperature reduction. The cooling mechanism 4 comprises a large supporting frame 41 and a transfer assembly 42. The supporting frame 41 comprises a frame body 411 and a supporting rod 412 arranged on the frame body 411, and the length direction of the frame body 411 is parallel to the conveying direction of the angle steel; the supporting rod 412 is arranged along the width direction of the frame body 411, and the supporting rod 412 is arranged in multiple and is arranged in parallel and spaced along the length direction of the frame body 411, and the top wall of the supporting rod 412 is used for supporting the angle steel.

[0036] With reference to Figure 5 and Figure 6 , the transfer assembly 42 is used for intermittently moving the angle steel along the width direction of the frame body 411. The transfer assembly 42 comprises a bearing plate 421 and a second driving component 422, the bearing plate 421 is arranged in parallel with the supporting rod 412, and the top wall of the bearing plate 421 is used for temporarily supporting the angle steel; the bearing plate 421 is arranged in multiple, and each bearing plate 421 is located between two adjacent supporting rods 412; the second driving component 422 is arranged below the bearing plate 421, and is used for driving the bearing plate 421 to move along the height direction and the width direction of the frame body 411.

[0037] With reference to Figure 7 , the second driving component 422 comprises a sliding seat 4221, a lifting frame 4222, a first oil cylinder 4223 and a second oil cylinder 4224, the sliding seat 4221 is arranged in sliding along the width direction of the frame body 411, the first oil cylinder 4223 is arranged horizontally, the piston rod end of the first oil cylinder 4223 is connected with the sliding seat 4221, so that the first oil cylinder 4223 can drive the sliding seat 4221 to slide horizontally. The lifting frame 4222 is vertically and slidably connected to the top wall of the sliding seat 4221, the second oil cylinder 4224 is arranged vertically, the cylinder body of the second oil cylinder 4224 is fixedly installed on the sliding seat 4221, the piston rod end of the second oil cylinder 4224 is fixedly connected with the lifting frame 4222, and the bearing plate 421 is fixedly installed on the top of the lifting frame 4222. The second oil cylinder 4224 can drive the lifting frame 4222 and the bearing plate 421 to slide vertically. Thus, under the cooperation of the first oil cylinder 4223 and the second oil cylinder 4224, the bearing plate 421 can move along the height direction and the width direction of the frame body 411 respectively.

[0038] In the initial state, the bearing plate 421 is located below the support rod 412, and the just-cut hot angle steel is placed on the top wall of the support rod 412. In operation, the second driving component 422 drives all the bearing plates 421 to move upward first, and the angle steel is lifted from the support rod 412 by the bearing plates 421; then the bearing plates 421 move the angle steel horizontally by a small distance; then the bearing plates 421 move downward again to place the angle steel on the support rod 412; finally, the bearing plates 421 retreat horizontally to the initial position. Through the cycle of lifting, translating, placing down, and retreating, the angle steel is transported step by step on the cooling bed, and fully contacts with air during the movement, achieving the dual purposes of intermittent transportation and efficient cooling.

[0039] With reference to Figure 1 In order to cope with mass production, the cooling mechanism 4 is provided with two groups in parallel. In order to accurately distribute the angle steel to the two groups of cooling mechanisms 4, a guide mechanism 6 is further provided between the shearing mechanism 3 and the cooling mechanism 4. The guide mechanism 6 includes a main track 61 and two branch tracks 62, a rotatable deflection block 63 is arranged at the intersection of the main track 61 and the branch tracks 62, and a driving motor (not shown in the figure) is arranged below the deflection block 63 for driving the deflection block 63 to rotate. The high-speed angle steel coming out of the shearing mechanism 3 first moves along the main track 61, and the control system can drive the deflection block 63 to rotate according to the current working state of the two groups of cooling mechanisms 4, so that the main track 61 is aligned with one of the branch tracks 62, thereby guiding the angle steel to the designated cooling mechanism 4. This automatic shunting design avoids congestion in a single cooling channel, and makes the material flow of the entire production line more smooth, thereby improving the production capacity.

[0040] With reference to Figure 8 and Figure 9 Further, the frame body 411 is further provided with a turnover mechanism 5 for driving the angle steel to turn over. The turnover mechanism 5 is provided in multiple groups, and each turnover mechanism 5 corresponds to one support rod 412. The turnover mechanism 5 includes a bearing block 51 and a first driving component 52. The bearing block 51 is provided in multiple numbers and uniformly spaced along the length direction of the support rod 412. The bearing block 51 includes two symmetrically arranged block bodies, which are fixedly connected together to form a V-shaped block, and the included angle of the opening side between the two block bodies is obtuse. The bearing block 51 is rotationally connected to the support rod 412, and the rotation axis of the bearing block 51 is arranged along the length direction of the frame body 411. The inner side of the bearing block 51 is used to support the angle steel. The first driving component 52 is arranged on one side of the support rod 412, and is used to drive the multiple bearing blocks 51 on the same support rod 412 to rotate synchronously.

[0041] With reference to Figure 9 and Figure 10The first driving component 52 comprises a chain wheel 521, a chain 522 and a second motor 523. One end of the bearing block 51 is provided with a rotating rod 511, and the chain wheel 521 is coaxially fixedly connected to the rotating rod 511. The chain 522 is arranged between the chain wheels 521, and one end of the chain 522 is connected with the output shaft of the second motor 523. Thus, the second motor 523 can drive the corresponding chain wheel 521 to rotate after being started, so that the chain 522 rotates, and the plurality of chain wheels 521 synchronously rotate, thereby driving the plurality of bearing blocks 51 to synchronously rotate, and the plurality of angle steels placed on the frame body 411 are turned over together.

[0042] When it is necessary to turn over the angle steel, the first driving component 52 drives the bearing blocks 51 to rotate by an angle around the axis. Since the angle steel is placed on the bearing blocks 51, the rotation of the bearing blocks 51 can smoothly drive the angle steel to turn over. Through the turning over, the part of the angle steel continuously contacting the supporting rod 412 can be avoided, so that each part of the angle steel can be exposed to the air, thereby realizing more uniform and thorough cooling, which helps to reduce the internal stress of the angle steel, improve the straightness of the finished product, and also can reduce the subsequent straightening amount. Since the included angle between the two blocks is obtuse, the two blocks cannot contact the two sides of the angle steel at the same time, so that the part of the angle steel originally supported can be exposed to the air after the turning over process of the angle steel is completed, thereby being better cooled.

[0043] With reference to Figure 9 Further, the support member 8 is arranged on each block, and the support member 8 comprises a support column 81 and an elastic member 82. The block is provided with a through hole, and the support column 81 is slidably arranged in the through hole. The elastic member 82 is a spring, and the elastic member 82 is fixedly connected between the side of the block close to the supporting rod 412 and the bottom end of the support column 81. Under normal circumstances, the elastic member 82 is at the original length, so that the top end of the support column 81 is out of the block. Figure 9 As shown in the figure, the angle steel is placed on the top wall of the left block, so that the support column 81 on the left block is pushed to the lower side of the block, and the corresponding elastic member 82 is in a stretched state. The right block is in an inclined state, the top end of the support column 81 on the block is in a spaced arrangement state with the right side of the angle steel, and the elastic member 82 on the support column 81 is at the original length.

[0044] When the bearing block 51 rotates to the right, the left block will push the angle steel to rotate to the right. When the angle steel rotates to a small angle, the right side of the angle steel abuts against the top end of the support column 81. With the continuation of the rotation process, the right support column 81 will be pushed downward. When the right block rotates to the horizontal state, due to the inertia of the angle steel itself, the angle steel will not stop immediately, and will continue to rotate, thereby continuing to push the right support column 81 downward until the right side of the angle steel rotates to the horizontal state. At this time, the angle steel rotates 90° as a whole. Before the turnover, the bearing block 51 supports the left outer wall of the angle steel. After the turnover, the bearing block 51 supports the right outer wall of the angle steel, thereby avoiding the situation that one side of the angle steel continuously contacts the metal frame 411, resulting in different cooling speeds of different parts of the angle steel, and causing the angle steel to produce a large bend during the cooling process.

[0045] Among them, the support rod 412 is provided with an avoidance slot for the bottom end of the support column 81 to pass through, so as to ensure the smooth rotation of the bearing block 51.

[0046] Referring to Figure 1 , one side of the cooling mechanism 4 is provided with a discharging mechanism 7. The discharging mechanism 7 comprises a plurality of conveying rollers 71. The conveying rollers 71 are arranged along the length direction of the support rod 412 and are rotationally arranged. The conveying rollers 71 are uniformly and spacedly arranged along the length direction of the frame 411. The end of the conveying roller 71 is provided with a transmission sprocket. Adjacent two transmission sprockets 521 are provided with a transmission chain. The transmission sprocket is driven by a motor, thereby achieving the driving of the conveying roller 71. The top wall of the conveying roller 71 is used to support the angle steel. Therefore, after the transfer assembly 42 transfers the angle steel on the bearing block 51 placed on the frame 411 to the top wall of the conveying roller 71, the rotation of the conveying roller 71 can drive the angle steel to move along the length direction of the angle steel.

[0047] Among them, the heating mechanism 1, the forming mechanism 2, the shearing mechanism 3 and the cooling mechanism 4 are provided with conveying rollers. The conveying rollers are driven by a motor, a transmission sprocket and a transmission chain, thereby achieving the conveying of the angle steel between each process.

[0048] The implementation principle of the embodiment of the automatic angle steel processing production line is as follows: a rectangular blank is first heated to a suitable rolling temperature by a heating mechanism 1, and then is sent into a forming mechanism 2 composed of a vertical rolling mill 21 and a horizontal rolling mill 22 alternately, and is formed into an L-shaped angle steel through accurate rolling in multiple passes. Then, the continuously conveyed angle steel is cut according to a fixed size by a shearing mechanism 3. The cut angle steel segments are automatically distributed to one of two parallel cooling mechanisms 4 through a guide mechanism 6. In the cooling mechanism 4, the angle steel is stepwise transversely conveyed by a transfer assembly 42, and is turned over by a turnover mechanism 5 integrated on a support rod 412 during the conveying process, so as to realize uniform and rapid cooling. Finally, the cooled angle steel is conveyed to the end of the production line, and waits for collection and packaging. The whole process is closely coordinated, and high automation is realized.

[0049] The above is an optional embodiment of the present application, and does not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic angle steel processing production line, characterized in that: The utility model relates to a kind of angle steel production line, including: Heating mechanism (1) for heating raw material; Forming mechanism (2) including vertical rolling mill (21) and horizontal rolling mill (22) arranged alternately along rolling path, for rolling raw material, rectangular section raw material is rolled into L-shaped section angle steel; Shearing mechanism (3) for cutting angle steel after forming; Cooling mechanism (4) including support frame (41) and transfer assembly (42), the support frame (41) is used to support angle steel, so that multiple angle steels are arranged at intervals along the width direction of the support frame (41), the transfer assembly (42) is used to intermittently convey cut angle steel; Turnover mechanism (5) including bearing block (51) and first driving component (52), the bearing block (51) includes two blocks connected with each other, both blocks are used to abut with angle steel, in the case where one of the blocks abuts with angle steel, the other block is in separation state with angle steel;The bearing block (51) is rotationally connected to the support frame (41) around the axis parallel to the length direction of the support frame (41), and the first driving component (52) is used to drive the bearing block (51) to rotate, so that the bearing block (51) drives angle steel to overturn.

2. The angle steel automatic processing production line according to claim 1, characterized in that: The vertical rolling mill (21) is used for lateral rolling of blank to control leg height and leg width of angle steel, and the horizontal rolling mill (22) is used for horizontal rolling of blank to control thickness of angle steel.

3. The angle steel automatic processing production line according to claim 2, characterized in that: The vertical rolling mill (21) includes first rack (211), rotary power part (212), bidirectional screw rod (213) and first bearing seat (214), each of the first bearing seat (214) is rotationally connected with vertical roller (215), the first bearing seat (214) is slidably connected to the first rack (211), the two ends of the bidirectional screw rod (213) are respectively threadedly connected with two first bearing seats (214), and the rotary power part (212) is used to drive the bidirectional screw rod (213) to rotate, so that the two first bearing seats (214) slide reversely.

4. The angle steel automatic processing production line according to claim 3, characterized in that: The horizontal rolling mill (22) includes second rack (221), second bearing seat (222), third bearing seat (223) and pressing assembly (225), the second bearing seat (222) is slidably connected to the second rack (221), the second bearing seat (222) and the third bearing seat (223) are both rotationally connected with horizontal roller (224), and the pressing assembly (225) is connected with the second rack (221) and is used to drive the second bearing seat (222) to move and lock.

5. The angle steel automatic processing production line according to claim 1, characterized in that: The support frame (41) comprises a frame body (411) and support rods (412) arranged on the frame body (411), a plurality of the support rods (412) are arranged in parallel and spaced along the length direction of the frame body (411); the transfer assembly (42) comprises a plurality of bearing plates (421) and a second driving component (422), the bearing plates (421) are arranged in staggered manner with the support rods (412), the top wall of the bearing plate (421) is used for supporting the angle steel, and the second driving component (422) is used for driving the bearing plate (421) to move along the height direction and the width direction of the frame body (411).

6. The angle steel automatic processing production line according to claim 1, characterized in that: The shearing mechanism (3) is a flying shearing machine.

7. The angle steel automatic processing production line according to claim 1, characterized in that: The cooling mechanism (4) is provided with two groups, and the two groups of the cooling mechanism (4) are arranged in parallel.

8. The angle steel automatic processing production line according to claim 7, characterized in that: The shearing mechanism (3) and the cooling mechanism (4) are provided with a guide mechanism (6), the guide mechanism (6) comprises a main track (61), a branch track (62) and a deflection block (63), one end of the main track (61) faces the shearing mechanism (3), the other end of the main track (61) is communicated with the branch track (62), the branch track (62) is provided with two, the first branch track (62) leads to one group of the cooling mechanism (4), the second branch track (62) leads to the other group of the cooling mechanism (4), and the deflection block (63) is rotationally connected to the connection position of the main track (61) and the branch track (62), so that the main track (61) is communicated with one of the two branch tracks (62).

9. The angle steel automatic processing production line according to claim 1, characterized in that: Two block bodies are provided with support members (8), the support member (8) comprises a support column (81) and an elastic member (82), the support column (81) is slidably arranged on the block body, one end of the support column (81) is used for abutting against the angle steel, and the elastic member (82) is connected between the block body and the support column (81).

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