Steel strip waste shearing and collection system and its control method

Abstract

The present invention provides a steel strip waste shearing and collecting system and its control method. The system includes a first pinch roll device, a shearing device, a second pinch roll device, a waste collecting device and a third pinch roll device. The waste collecting device includes a frame, two cross beams, a conveying mechanism, a displacement sensor, a waste blocking mechanism, a waste positioning structure and a lifting and transporting device. The two cross beams are installed on the frame in parallel. The conveying mechanism includes rolling conveying components that are relatively movably arranged on each cross beam. The displacement sensor is installed at the input end of the frame for detecting the length of the steel strip waste. The waste blocking mechanism is arranged at the output end of the frame for actively blocking the steel strip waste. The waste positioning structure includes two positioning plates and a connecting arm. The two positioning plates are respectively fixedly connected to the two cross beams through the connecting arm. The lifting and transporting device is arranged directly below the two positioning plates. This system can effectively collect waste and improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the stainless steel cold rolling industry, and particularly to a steel strip waste shearing and collecting system and a control method thereof. Background Art

[0002] At present, the competition in the stainless steel market is very fierce. For cold-rolled thin plates, the accuracy and performance of products are only the most basic requirements. The competition is more concentrated on the surface quality and shape of the steel strip. Since the head and tail of the current steel coil are scratched, the length of the scratch is about 4.8 meters. Since the scratch will have a great impact on the quality of an entire steel coil, it is necessary to cut off the head and tail. However, the existing strip waste shearing production line is not reasonably set, resulting in low processing efficiency. And after the strip steel is sheared, the waste generated during the shearing process cannot be reasonably and effectively processed, so that the waste is randomly stacked on both sides of the production line, occupying a large floor area. The waste is randomly stacked, which is likely to cause danger to the staff. Summary of the Invention

[0003] In view of the above, the present invention provides a steel strip waste shearing and collecting system, which can effectively collect the waste generated during the shearing process and improve the production efficiency.

[0004] The technical solution involved in the present invention:

[0005] A steel strip waste shearing and collecting system includes a first pinch roll device, a shearing device, a second pinch roll device, a waste collecting device and a third pinch roll device. The waste collecting device includes a frame, two cross beams, a conveying mechanism, a displacement sensor, a waste blocking mechanism, a waste positioning structure and a lifting and transporting device. The two cross beams are parallelly installed on the frame. The conveying mechanism includes rolling conveying components that are relatively movably arranged on each cross beam. Each rolling conveying component can be opened relative to both sides of the steel strip. The displacement sensor is installed at the input end of the frame and is used to detect the length of the steel strip waste for the shearing device to shear off a predetermined length of waste. The waste blocking mechanism is arranged at the output end of the frame and is used to movably block the steel strip waste. The waste positioning structure includes two positioning plates and a connecting arm. The two positioning plates are respectively fixedly connected to the two cross beams through the connecting arm, and the two positioning plates are located directly below the conveying mechanism. The lifting and transporting device is arranged directly below the two positioning plates and is used to carry the steel strip waste.

[0006] Further, the waste collecting device further includes two guide posts and a lead screw. The two guide posts are parallelly erected on the frame through support seats. The lead screw is rotatably installed on the frame through a bearing seat and is located between the two guide posts.

[0007] Further, the waste collection device further includes an adjustment driving member. Each cross beam is provided with three lugs. Through holes are provided in the lugs on both sides, and threaded holes are provided in the middle lug. Each guide post is inserted into the through holes of two opposite cross beams, and the lead screw is inserted into the threaded holes of two opposite cross beams. The adjustment driving member is installed on the frame and is used to drive the lead screw to rotate.

[0008] Further, the rolling conveying assembly includes a support rod and a plurality of rollers installed on the support rod.

[0009] Further, the conveying mechanism further includes a driving device for driving the two rolling conveying assemblies to open outward respectively to unload the steel strip waste.

[0010] Further, the driving device includes two swing arms rotatably installed on each cross beam, and a telescopic driving member installed on the swing arm for driving the swing arm to swing. The telescopic end of the telescopic driving member is hinged to the swing arm, and the lower end of each swing arm is connected to the support rod.

[0011] Further, the driving device further includes a rotating shaft installed below each cross beam. A shaft hole is provided at the upper end of each swing arm, and each swing arm is sleeved on the rotating shaft through the shaft hole. Each swing arm can rotate forward and backward around the rotating shaft.

[0012] Further, the waste blocking mechanism includes a blocking plate hinged to the frame, and a blocking driving member installed on the frame for driving the blocking plate to swing.

[0013] Further, the lifting and transporting device includes a track, a carrier vehicle, lifting rods, a support platform and a lifting driving member. The track is fixed in a groove opened on the ground plane. The carrier vehicle is reciprocally movably arranged on the track. There are four lifting rods, which are respectively hinged to each other in pairs. The bottom end of each lifting rod is hinged to the carrier vehicle, and the top end of each lifting rod is hinged to the support platform. The body end of the lifting driving member is hinged to the carrier vehicle, and the telescopic end of the lifting driving member is hinged to the support platform.

[0014] A control method for the above-mentioned steel strip waste shearing and collecting system includes the following steps:

[0015] The steel strip starts to be conveyed from the first pinch roll device. If it is necessary to shear the steel strip waste, the displacement sensor is turned on in advance. After detecting that the steel strip is conveyed to a predetermined length on the conveying mechanism, the shearing device is started to shear off the steel strip waste. At the same time, the waste blocking mechanism moves to block the end of the steel strip waste. When the steel strip waste is completely supported on the two rolling conveying components and the end of the steel strip waste abuts against the waste blocking mechanism, the two rolling conveying components are opened relatively to allow the steel strip waste to fall onto the lifting and transporting device through between the two positioning plates. When the steel strip waste on the lifting and transporting device is stacked to a certain thickness, the lifting and transporting device drives the steel strip waste to descend and separate from the two positioning plates, and moves it outwards from the outside of the machine frame for transporting away the steel strip waste. If it is not necessary to shear the steel strip waste, the displacement sensor is turned off, and the waste blocking mechanism moves away from the blocking position to allow the steel strip to be conveyed from the third pinch roll device to the winder.

[0016] In the steel strip waste shearing and collecting system of the present invention, a waste collecting device is arranged behind the shearing device. The waste collecting device includes a machine frame, two cross beams, a conveying mechanism, a displacement sensor, a waste blocking mechanism, a waste positioning structure and a lifting and transporting device. After the displacement sensor detects the length of the steel strip waste, the shearing device is started to cut off the steel strip waste. At the same time, the waste blocking mechanism moves to block the end of the steel strip waste. When the steel strip waste is completely supported on the two rolling conveying components and the end of the steel strip waste abuts against the waste blocking mechanism, the two rolling conveying components are opened relatively to allow the steel strip waste to fall onto the lifting and transporting device after passing through the two positioning plates. When the steel strip waste on the lifting and transporting device is stacked to a certain thickness, the lifting and transporting device drives the steel strip waste to descend and separate from the positioning plates, and moves it outwards from the outside of the machine frame for transporting away the steel strip waste. In this way, the waste generated during the shearing process can be effectively collected, which is beneficial to safe production and does not affect the normal operation of the production line, and is beneficial to improving production efficiency. Description of the Drawings

[0017] Figure 1 It is the front view structural schematic diagram of the using state of the steel strip waste shearing and collecting system of the present invention;

[0018] Figure 2 It is the front view structural schematic diagram of the waste collecting device of the steel strip waste shearing and collecting system of the present invention;

[0019] Figure 3 It is the partial top view structural schematic diagram of the waste collecting device of the steel strip waste shearing and collecting system of the present invention. Detailed Embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the protection scope of the present invention.

[0021] Please refer to Figures 1 to 3 , the present invention provides a steel strip waste shearing and collecting system, which includes a first pinch roll device 1, a shearing device 2, a second pinch roll device 3, a waste collecting device 4 and a third pinch roll device 5 arranged in sequence along the steel strip conveying direction. The first pinch roll device 1, the second pinch roll device 3 and the third pinch roll device 5 are all used for clamping and conveying the steel strip. The waste collecting device 4 includes a frame 41, two cross beams 42, a conveying mechanism 43, a displacement sensor, a waste blocking mechanism 44, a waste positioning structure 40 and a lifting and transporting device 45. The two cross beams 42 are installed on the frame 41 in parallel along the steel strip conveying direction. The conveying mechanism 43 includes rolling conveying components movably arranged on each cross beam 42, so that both sides of the steel strip can be rollingly supported on the rolling conveying components for conveying. Each rolling conveying component can be opened relative to both sides of the steel strip to allow the sheared steel strip waste to fall. The displacement sensor is installed at the input end of the frame 41 and is used to detect the length of the steel strip waste, so that the shearing device 2 can shear off waste of a predetermined length. The waste blocking mechanism 44 is arranged at the output end of the frame 41 and is used to actively block the steel strip waste. The waste positioning structure 40 includes two positioning plates 401 and a connecting arm 402. The two positioning plates 401 are respectively fixedly connected to the two cross beams 42 through the connecting arm 402, and the two positioning plates 401 are located directly below the conveying mechanism 43 to position the falling steel strip waste. The lifting and transporting device 45 is arranged directly below the two positioning plates 401 and is used to carry the steel strip waste that has fallen through the two positioning plates 401.

[0022] In order to adapt to the production of steel strips with different widths, the two cross beams 42 can be installed on the frame 41 with adjustable spacing. The waste collecting device 4 further includes two guide posts 46, a lead screw 47 and an adjusting driving member. The two guide posts 46 are erected on the frame 41 in parallel through support seats. The lead screw 47 is rotatably installed on the frame 41 through a bearing seat and is located between the two guide posts 46. Each cross beam 42 is provided with three lugs 421. The two side lugs 421 are provided with through holes, and the middle lug 421 is provided with a threaded hole. Each guide post 46 passes through the opposite through holes of the two cross beams 42, and the lead screw 47 passes through the opposite threaded holes of the two cross beams 42. The adjusting driving member is installed on the frame 41 and is used to drive the lead screw 47 to rotate to adjust the spacing between the two cross beams 42.

[0023] The rolling conveying component includes a support rod 431 and a plurality of rollers 432 installed on the support rod 431. In this embodiment, a plurality of rollers 432 are arranged on both sides of the support rod 431. It can be understood that a plurality of rollers 432 can also be arranged only on one side of the support rod 431.

[0024] The conveying mechanism 43 further includes a driving device for driving the two rolling conveying components to open outwards respectively to unload the steel strip waste. The driving device includes two swing arms 433 rotatably mounted on each cross beam 42, and a telescopic driving member 434 mounted on the swing arm 433 for driving the swing arm 433 to swing. The telescopic end of the telescopic driving member 434 is hinged to the swing arm 433, and the lower end of each swing arm 433 is connected to the support rod 431. The telescopic driving member 434 can be a cylinder, a hydraulic cylinder or an electric cylinder.

[0025] As a preferred embodiment, the driving device further includes a rotating shaft 435 installed below each cross beam 42. The upper end of each swing arm 433 is provided with a shaft hole, and each swing arm 433 is sleeved on the rotating shaft 435 through the shaft hole, and each swing arm 433 can rotate forward and backward around the rotating shaft 435.

[0026] The waste blocking mechanism 44 includes a blocking plate 441 hinged to the frame 41, and a blocking driving member 442 installed on the frame 41 for driving the blocking plate 441 to swing. The blocking driving member 442 can be a cylinder, and the telescopic end of the cylinder is hinged to the blocking plate 441.

[0027] A receiving space is formed between the two positioning plates 401. An inclined surface is formed on the upper side of the positioning plate 401 to facilitate guiding the steel strip waste to slide down into the receiving space and support on the top surface of the lifting and transporting device 45.

[0028] The lifting and transporting device 45 includes a track 451, a carrier vehicle 452, a lifting rod 453, a support platform 454 and a lifting driving member 455. The track 451 is fixed in a groove opened on the ground plane. The carrier vehicle 452 is reciprocally movably arranged on the track 451. Four lifting rods 453 are provided, which are respectively hinged to each other in pairs. The bottom end of each lifting rod 453 is hinged to the carrier vehicle 452, and the top end of each lifting rod 453 is hinged to the support platform 454. The body end of the lifting driving member 455 is hinged to the carrier vehicle 452, and the telescopic end of the lifting driving member 455 is hinged to the support platform 454.

[0029] A sorting cylinder 456 and an alignment plate 457 are oppositely installed on the support platform 454. A push plate 458 is installed at the telescopic end of the sorting cylinder 456. The sorting cylinder 456 is located at one end between the two positioning plates 401 for positioning the two ends of the steel strip waste between the alignment plate 457 and the push plate 458. During use, the distance between the push plate 458 and the alignment plate 457 is slightly larger than the length of the steel strip waste. Every certain period of time, the sorting cylinder 456 drives the push plate 458 to move towards the alignment plate 457 to align one end of the steel strip waste along the alignment plate 457.

[0030] The steel strip waste shearing and collecting system of the present invention further includes a control system for controlling the actions of each moving part.

[0031] Control method for steel strip waste shearing and collection system of the present invention, comprising the following steps:

[0032] The steel strip starts to be conveyed from the first pinch roll device 1. If it is necessary to shear the steel strip waste, the displacement sensor is turned on in advance. After detecting that the steel strip is conveyed to a predetermined length on the conveying mechanism 43, the shearing device 2 is started to shear off the steel strip waste. At the same time, the waste blocking mechanism 44 moves to block the end of the steel strip waste. When the steel strip waste is completely supported on the two rolling conveying components and the end of the steel strip waste abuts against the waste blocking mechanism 44, the two rolling conveying components are opened relatively to allow the steel strip waste to fall onto the lifting and transporting device 45 through between the two positioning plates 401. When the steel strip waste on the lifting and transporting device 45 is stacked to a certain thickness, the lifting and transporting device 45 drives the steel strip waste to descend and separate from the two positioning plates 401, and move outwards from the outside of the frame 41 for transporting away the steel strip waste. If it is not necessary to shear the steel strip waste, the displacement sensor is turned off, and the waste blocking mechanism 44 moves away from the blocking position to allow the steel strip to be conveyed from the third pinch roll device 5 to the coiler.

[0033] The steel strip waste shearing and collection system of the present invention is provided with a waste collection device 4 behind the shearing device 2. The waste collection device 4 includes a frame 41, two cross beams 42, a conveying mechanism 43, a displacement sensor, a waste blocking mechanism 44, a waste positioning structure 40 and a lifting and transporting device 45. After the displacement sensor detects the length of the steel strip waste, the shearing device 2 is started to cut off the steel strip waste. At the same time, the waste blocking mechanism 44 moves to block the end of the steel strip waste. When the steel strip waste is completely supported on the two rolling conveying components and the end of the steel strip waste abuts against the waste blocking mechanism 44, the two rolling conveying components are opened relatively to allow the steel strip waste to fall onto the lifting and transporting device 45 after passing through the two positioning plates 401. When the steel strip waste on the lifting and transporting device 45 is stacked to a certain thickness, the lifting and transporting device 45 drives the steel strip waste to descend and separate from the positioning plates 401, and move outwards from the outside of the frame 41 for transporting away the steel strip waste. In this way, the waste generated during the shearing process can be effectively collected, which is beneficial to safe production and does not affect the normal operation of the production line, and is beneficial to improving production efficiency.

[0034] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A steel strip waste shearing and collecting system, comprising a first pinch roll device (1), a shearing device (2), a second pinch roll device (3) and a third pinch roll device (5), characterized in that, A waste collection device (4) is arranged between the second pinch roll device (3) and the third pinch roll device (5). The waste collection device (4) includes a frame (41), two cross beams (42), a conveying mechanism (43), a displacement sensor, a waste blocking mechanism (44), a waste positioning structure (40) and a lifting and transporting device (45). The two cross beams (42) are installed on the frame (41) in parallel. The conveying mechanism (43) includes rolling conveying components that are relatively movably arranged on each cross beam (42). Each rolling conveying component can be opened relative to both sides of the steel strip. The displacement sensor is installed at the input end of the frame (41) and is used to detect the length of the steel strip waste for the shearing device (2) to shear off a predetermined length of waste. The waste blocking mechanism (44) is arranged at the output end of the frame (41) and is used to movably block the steel strip waste. The waste positioning structure (40) includes two positioning plates (401) and a connecting arm (402). The two positioning plates (401) are respectively fixedly connected to the two cross beams (42) through the connecting arm (402), and the two positioning plates (401) are located directly below the conveying mechanism (43). The lifting and transporting device (45) is arranged directly below the two positioning plates (401) and is used to carry the steel strip waste; The rolling conveying component includes a support rod (431) and a plurality of rollers (432) installed on the support rod (431); The conveying mechanism (43) further includes a driving device for driving the two rolling conveying components to open outward respectively to unload the steel strip waste. The driving device includes two swing arms (433) rotatably installed on each cross beam (42), and a telescopic driving member (434) installed on the swing arm (433) for driving the swing arm (433) to swing. The telescopic end of the telescopic driving member (434) is hinged to the swing arm (433), and the lower end of each swing arm (433) is connected to the support rod (431); The driving device further includes a rotating shaft (435) installed below each cross beam (42). The upper end of each swing arm (433) is provided with a shaft hole, and each swing arm (433) is sleeved on the rotating shaft (435) through the shaft hole. Each swing arm (433) can rotate forward and backward around the rotating shaft (435).

2. The steel strip waste shearing and collecting system according to claim 1, wherein, The waste collection device (4) further includes two guide posts (46) and a lead screw (47). The two guide posts (46) are parallelly erected on the frame (41) through support seats. The lead screw (47) is rotatably installed on the frame (41) through a bearing seat and is located between the two guide posts (46).

3. The steel strip waste shearing and collecting system according to claim 2, wherein The waste collection device (4) further includes an adjusting driving member. Each cross beam (42) is provided with three lugs (421). The lugs (421) on both sides are provided with through holes, and the middle lug (421) is provided with a threaded hole. Each guide post (46) passes through the opposite through holes of the two cross beams (42), and the lead screw (47) passes through the opposite threaded holes of the two cross beams (42). The adjusting driving member is installed on the frame (41) and is used to drive the lead screw (47) to rotate.

4. The steel strip waste shearing and collecting system according to claim 1, wherein The waste blocking mechanism (44) includes a blocking plate (441) hinged to the machine frame (41) and a blocking driving member (442) installed on the machine frame (41) for driving the blocking plate (441) to swing.

5. The steel strip waste shearing and collecting system according to claim 1, wherein, The lifting and transporting device (45) includes a track (451), a carrier vehicle (452), a lifting rod (453), a support platform (454), and a lifting driving member (455). The track (451) is fixed in a groove formed on the ground plane. The carrier vehicle (452) is reciprocally movably arranged on the track (451). There are four lifting rods (453), which are respectively hinged to each other in pairs. The bottom end of each lifting rod (453) is hinged to the carrier vehicle (452), and the top end of each lifting rod (453) is hinged to the support platform (454). The body end of the lifting driving member (455) is hinged to the carrier vehicle (452), and the telescopic end of the lifting driving member (455) is hinged to the support platform (454).

6. A control method for a steel strip waste shearing and collection system according to any one of claims 1-5, characterized in that, It includes the following steps: The steel strip starts to be conveyed from the first pinch roller device (1). If it is necessary to cut the waste of the steel strip, the displacement sensor is turned on in advance. After detecting that the steel strip is conveyed to a predetermined length on the conveying mechanism (43), the cutting device (2) is started to cut off the waste of the steel strip. At the same time, the waste blocking mechanism (44) moves to block the end of the waste of the steel strip. When the waste of the steel strip is completely supported on the two rolling conveying components and the end of the waste of the steel strip abuts against the waste blocking mechanism (44), the two rolling conveying components are relatively opened to allow the waste of the steel strip to fall onto the lifting and transporting device (45) through between the two positioning plates (401). When the waste of the steel strip on the lifting and transporting device (45) is stacked to a certain thickness, the lifting and transporting device (45) drives the waste of the steel strip to descend and separate from the two positioning plates (401), and moves outwards from the outside of the machine frame (41) to transport away the waste of the steel strip. If it is not necessary to cut the waste of the steel strip, the displacement sensor is turned off, and the waste blocking mechanism (44) moves away from the blocking position to allow the steel strip to be conveyed from the third pinch roller device (5) to the winder.

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