Automatic steel coil feeding device

Abstract

This invention relates to an automatic steel coil feeding device. Its structure consists of a saddle for placing the steel coil, located on the outer side of the pit, away from the coiling equipment. A feeding trolley moves horizontally within the pit and can also move vertically up and down. Sliding covers pass through the pit and are fixedly connected to both ends of the feeding trolley's movement direction, with limiters installed on the outer sides of both ends of the pit. Steel coil center detection devices are located on the ground plane on both sides of the pit's center. The control system is connected to the saddle, feeding trolley, steel coil center detection devices, and the uncoiler shaft via signals. When the feeding trolley moves horizontally to below the saddle, it rises, detaching the steel coil from the saddle and moving horizontally to the steel coil center measuring device. The device receives the signal and controls the feeding trolley's rise and fall to ensure the steel coil center is at the same horizontal level as the uncoiler shaft, allowing the steel coil to be quickly placed onto the uncoiler shaft. This eliminates the need for worker adjustments, reducing labor intensity. The sliding covers on both sides of the feeding trolley eliminate safety hazards in the pit and improve its mobility.

Description

Technical Field

[0001] This invention relates to an automatic steel coil feeding device, specifically an automatic steel coil feeding device for slitting line processing of iron cores, belonging to the technical field of electrical steel sheet production equipment. Background Technology

[0002] In existing technologies, slitting lines typically use a loading trolley to transport the coil to the uncoiler spindle. During loading, workers need to constantly adjust the position of the steel coil to ensure the uncoiler spindle smoothly passes through the center of the coil. This is very labor-intensive, difficult to operate, inefficient, and inherently dangerous. Furthermore, the pit under the loading trolley in existing technologies is an open structure without safety barriers, posing a safety hazard to workers walking through it.

[0003] CN209383102U discloses an automatic steel coil feeding device. Although it is designed to allow the steel coil to be placed onto the coil support shaft more quickly via the steel coil tray, it still cannot solve the problem of safety of the movement channel of the feeding trolley.

[0004] CN102699227A discloses a slitting machine unit, in which the feeding trolley is driven by a hydraulic cylinder, which has limited movement distance. In addition, the steel coil is heavy, and the lateral movement achieved by the hydraulic cylinder has insufficient stability. Summary of the Invention

[0005] The present invention proposes an automatic steel coil feeding device, which aims to overcome the above-mentioned shortcomings of the prior art. While ensuring movement stability and passage safety, it can also realize automatic centering adjustment of steel coil height.

[0006] The technical solution of the present invention is as follows: an automatic steel coil feeding device, the structure of which is a pit set below the ground level of the factory building, located on the coiling side of the uncoiler equipment and next to the uncoiler shaft. A saddle for placing the steel coil is set on the outer side of the pit far away from the coiling equipment. The feeding trolley moves horizontally in the pit through a connected horizontal transmission mechanism. The feeding trolley moves vertically up and down through an installed hydraulic lifting mechanism. A sliding cover plate passes through the pit and is fixedly connected to both ends of the feeding trolley in the direction of movement, and is limited and installed on the outer side of both ends of the pit. A steel coil center detection device is provided on the ground level on both sides of the middle of the pit. The control system is respectively connected to the saddle, the feeding trolley, the steel coil center detection device and the uncoiler shaft. The horizontal transmission mechanism drives the loading trolley to move horizontally to below the saddle. The hydraulic lifting assembly raises the loading trolley, causing the steel coil to detach from the saddle and move horizontally to the steel coil center measuring device. By receiving the steel coil center measuring device, the loading trolley is raised and lowered to ensure that the center of the steel coil and the uncoiler shaft are at the same horizontal level. The steel coil is then quickly placed onto the uncoiler shaft without the need for worker adjustments, reducing the labor intensity of workers. The sliding covers on both sides of the loading trolley can eliminate the safety hazards of the pit and improve its passability.

[0007] Preferably, the loading trolley includes an upper trolley and a lower trolley, which are arranged vertically. A horizontal transmission mechanism is installed on the side of the lower trolley, and a hydraulic lifting mechanism is installed between the upper and lower trolleys. A pull rope sensor with its output end connected to the upper trolley is mounted on the lower trolley. A drive shaft and a driven shaft are installed at both ends of the lower trolley, and each end of the drive shaft and driven shaft is provided with rollers abutting against the guide rail. The horizontal transmission mechanism includes a reduction motor installed on the side of the lower trolley. The output end of the reduction motor is connected to a main drive sprocket. The main drive sprocket is connected to a driven sprocket A, which is coaxially mounted on one end of the drive shaft, via a drive chain A. The other end of the drive shaft is connected to a driven sprocket B, which is connected to a driven sprocket C, which is coaxially mounted on one end of the driven shaft, via a drive chain B. The drive shaft 322 and the driven shaft are installed at both ends of the lower trolley, and each end of the drive shaft and driven shaft is provided with rollers abutting against the guide rail. The geared motor drives the rollers to rotate, enabling the loading trolley and the steel coils mounted on it to move horizontally along the guide rails. When the upper part of the trolley moves vertically up and down, it drives the output end of the pull rope sensor to extend or retract, enabling precise measurement of the movement position of the upper part of the trolley.

[0008] Preferably, the steel coil center detection device includes a square tube frame consisting of a vertically arranged A square tube and a B square tube connecting the two A square tubes. A diameter measuring sensor is vertically installed on the A square tube, and a width measuring sensor is installed on the B square tube. Both the diameter measuring sensor and the width measuring sensor are connected to the control system signal.

[0009] Advantages of this invention: The structure is reasonably designed. The setting of the steel coil center measuring device and the rope sensor helps to control the lifting of the loading trolley so that the center of the steel coil and the uncoiler shaft are at the same level. The steel coil can be quickly placed on the uncoiler shaft without the need for workers to adjust the steel coil, which can reduce the labor intensity of workers. The sliding cover plates set on both sides of the loading trolley can eliminate the safety hazards of the pit and improve its passability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the automatic steel coil feeding device of the present invention.

[0011] Figure 2 yes Figure 1 A schematic diagram of the structure of the central pit.

[0012] Figure 3 yes Figure 1 A schematic diagram of the structure of the loading and unloading trolley.

[0013] Figure 4 yes Figure 1 A schematic diagram of the sliding cover plate.

[0014] In the diagram, 1 is the pit, 11 is the first-stage groove, 111 is the guide rail, 12 is the second-stage groove, 131 is proximity switch A, 132 is proximity switch B, 2 is the saddle, 21 is the saddle body, 22 is the PU board, 23 is the laser sensor, 3 is the loading trolley, 31 is the upper part of the trolley, 311 is the support platform, 312 is the buffer pad, 32 is the lower part of the trolley, 321 is the roller, 322 is the drive shaft, 323 is the driven shaft, 33 is the horizontal transmission mechanism, 331 is the geared motor, 332 is the main drive sprocket, 333 is the A driven drive sprocket, and 334 is the B driven drive sprocket. 335 is the C-type drive sprocket, 336 is the A-type drive chain, 337 is the B-type drive chain, 34 is the hydraulic lifting mechanism, 341 is the hydraulic cylinder, 35 is the rope sensor, 4 is the sliding cover plate, 41 is the drive shaft, 42 is the shaft fixing seat, 43 is the connecting plate, 44 is the drive sprocket, 45 is the C-type drive chain, 46 is the auxiliary plate, 5 is the steel coil center detection device, 51 is the square tube frame, 511 is the A-type square tube, 512 is the B-type square tube, 52 is the diameter measuring sensor, 53 is the width measuring sensor, 6 is the steel coil, 7 is the uncoiler shaft, and 8 is the ground plane. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0016] like Figure 1-4As shown, an automatic steel coil feeding device has the following structure: a pit 1 located below the ground level 8 of the factory building is set on the coiling side of the uncoiler equipment and next to the uncoiler shaft 7. A saddle 2 for placing the steel coil 6 is set on the outer side of the pit 1, away from the coiling equipment. A feeding trolley 3 moves horizontally in the pit 1 through a connected horizontal transmission mechanism 33. The feeding trolley 3 moves vertically up and down through a hydraulic lifting mechanism 34. A sliding cover 4 passes through the pit 1 and is fixedly connected to both ends of the feeding trolley 3 in the direction of movement, and is limited and installed on the outer side of both ends of the pit 1. A steel coil center detection device 5 is provided on the ground level 8 on both sides of the middle of the pit 1. The control system is connected to the saddle 2, the feeding trolley 3, the steel coil center detection device 5 and the uncoiler shaft 7 respectively.

[0017] The pit 1 is a long, stepped, reinforced concrete structure, including a first stepped groove 11 and a second stepped groove 12. The first stepped groove 11 is higher than the second stepped groove 12, and the first stepped groove 11 is wider than the second stepped groove 12. Guide rails 111 are provided on both sides of the bottom of the first stepped groove 11. The top of the first stepped groove 11 is flush with the ground plane 8. Near the end of the second stepped groove 11, close to the saddle 2, and at the end of the second stepped groove, proximity switches A 131 and B 132 are respectively provided for detecting the position of the loading trolley 3.

[0018] The saddle 2 includes a saddle body 21 made of steel plates and structural steel welded together and spaced above the sliding cover plate 4 at corresponding positions. A PU plate 22 is bolted to the top surface of the saddle body 21 in contact with the steel coil 6. A laser sensor 23 is provided at the center of the top surface of the saddle body 21 on one side of the PU plate 22. The control system signal is connected to the laser sensor 23.

[0019] The loading trolley 3 includes an upper trolley 31 and a lower trolley 32 arranged vertically. A horizontal transmission mechanism 33 is installed on the side of the lower trolley 32. A hydraulic lifting mechanism 34 is installed between the upper trolley 31 and the lower trolley 32. A pull rope sensor 35 with its output end connected to the upper trolley 31 is installed on the lower trolley 32.

[0020] The upper part 31 of the trolley includes a support platform 311. A buffer pad 312 is provided on the top surface of the support platform 311. The two sides of the top surface of the support platform 311 are inclined towards the center, symmetrically arranged in a V shape, and coincide with the left and right symmetrical center of the uncoiling machine shaft 7.

[0021] The lower part 32 of the trolley is provided with a drive shaft 322 and a driven shaft 323 at both ends. Both ends of the drive shaft 322 and the driven shaft 323 are provided with rollers 321 that abut against the guide rail 111.

[0022] The horizontal transmission mechanism 33 includes a geared motor 331 mounted on the side of the lower part 32 of the trolley. The output end of the geared motor 331 is connected to the main drive sprocket 332. The main drive sprocket 332 is connected to the A driven sprocket 333, which is coaxially mounted on one end of the drive shaft 322, via the A drive chain 336. The other end of the drive shaft 322 is connected to the B driven sprocket 334. The B driven sprocket 334 is connected to the C driven sprocket 335, which is coaxially mounted on one end of the driven shaft 323, via the B drive chain 337.

[0023] When the geared motor 321 is activated, it drives the drive shaft 322 and the rollers 321 on the drive shaft 322 to rotate via the main drive sprocket 332, the A driven drive sprocket 333, and the A drive chain 336. The drive shaft 332 drives the driven shaft 323 and the rollers 321 on the driven shaft 323 to rotate via the B driven drive sprocket 334, the C driven drive sprocket 335, and the B drive chain 337. This enables the loading trolley 3 and the steel coil 6 mounted on it to move horizontally and linearly along the guide rail 111.

[0024] The hydraulic lifting assembly 34 includes several sets of hydraulic cylinders 341, which are installed on the bottom surface of the lower part 32 of the trolley and whose output ends pass through the lower part 32 of the trolley and are connected to the bottom surface of the upper part 31 of the trolley. When the hydraulic cylinders 341 drive the upper part 31 of the trolley to make vertical lifting movements, they drive the output end (pull rope) of the pull rope sensor 35 to be pulled out or retracted, so as to realize the accurate measurement of the movement position of the upper part 31 of the trolley.

[0025] The sliding cover plate 4 includes two pairs of drive shafts 41 respectively arranged on the outer sides of both ends of the pit 1. The two ends of the drive shafts 41 are fixed by shaft fixing seats 42 and drive sprockets 44 are installed. All drive sprockets 44 are equipped with C drive chains 45. The two ends of the C drive chains 45 are connected to the two ends of the moving direction of the support platform 311. Connecting plates 43 are evenly arranged between the two C drive chains 45. The top two sides of the first groove 11 are connected by cantilever and auxiliary plates 46. The connecting plates 43 are located between the two auxiliary plates 46.

[0026] The steel coil center detection device 5 includes a square tube frame 51 consisting of a vertically arranged A square tube 511 and a B square tube 512 connecting the two A square tubes 511. A diameter measuring sensor 52 is vertically installed on the A square tube 511, and a width measuring sensor 53 is installed on the B square tube 512. Both the diameter measuring sensor 52 and the width measuring sensor 53 are connected to the control system signal.

[0027] Based on the above structure, during operation, the control system receives data from the saddle 2 and controls the loading trolley 3 to move horizontally. When it moves to the A proximity switch 131 below the saddle 2, it decelerates and stops at the B proximity switch 132. The hydraulic lifting assembly 34 raises the upper part 31 of the trolley, causing the steel coil 6 to detach from the saddle 2 and move horizontally to the steel coil center measuring device 5. By receiving data from the steel coil center measuring device 5 and the rope sensor 35, the control system raises and lowers the upper part 31 of the trolley so that the center of the steel coil 6 and the uncoiler shaft 7 are at the same horizontal level. The steel coil 6 is then quickly placed onto the uncoiler shaft 7 without the need for workers to adjust the steel coil 6, reducing the labor intensity of workers. The sliding cover plates 4 set on both sides of the loading trolley 3 can eliminate the safety hazards of the pit 1 and improve its passability.

[0028] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0029] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. An automatic steel coil feeding device, characterized in that, The pit (1) is located below the ground plane (8) of the workshop next to the uncoiler shaft (7) on the side of the uncoiler equipment. The saddle (2) for placing the steel coil (6) is located on the outer side of the pit (1) far away from the uncoiler equipment. The loading trolley (3) moves horizontally in the pit (1) through the connected horizontal transmission mechanism (33). The loading trolley (3) moves vertically up and down through the installed hydraulic lifting mechanism (34). The sliding cover (4) passes through the pit (1) and is fixedly connected to both ends of the loading trolley (3) in the direction of movement. It is also limited and installed on the outer side of both ends of the pit (1). The center detection device (5) of the steel coil is provided on the ground plane (8) on both sides of the middle part of the pit (1). The control system is connected to the saddle (2), the loading trolley (3), the center detection device (5) of the steel coil and the uncoiler shaft (7) respectively. The loading trolley (3) includes an upper trolley (31) and a lower trolley (32) arranged vertically. A horizontal transmission mechanism (33) is installed on the side of the lower trolley (32). A hydraulic lifting mechanism (34) is installed between the upper trolley (31) and the lower trolley (32). A pull rope sensor (35) with its output end connected to the upper trolley (31) is installed on the lower trolley (32). The upper part of the trolley (31) includes a support platform (311), and a buffer pad (312) is provided on the top surface of the support platform (311). The two sides of the top surface of the support platform (311) are inclined towards the center, are symmetrical in a V shape, and coincide with the left and right symmetrical center of the unwinding machine shaft (7). The lower part (32) of the trolley is provided with a drive shaft (322) and a driven shaft (323) at both ends. The drive shaft (322) and the driven shaft (323) are respectively provided with rollers (321) that abut against the guide rail (111). The horizontal transmission mechanism (33) includes a geared motor (331) installed on the side of the lower part (32) of the trolley. The output end of the geared motor (331) is connected to the main drive sprocket (332). The main drive sprocket (332) is connected to the A driven sprocket (333) coaxially installed at one end of the drive shaft (322) via the A drive chain (336). The other end of the drive shaft (322) is connected to the B driven sprocket (334). The B driven sprocket (334) is connected to the C driven sprocket (335) coaxially installed at one end of the driven shaft (323) via the B drive chain (337). The hydraulic lifting mechanism (34) includes several sets of hydraulic cylinders (341) which are disposed on the bottom surface of the lower part (32) of the trolley and whose output ends pass through the lower part (32) of the trolley and are connected to the bottom surface of the upper part (31) of the trolley.

2. The automatic steel coil feeding device as described in claim 1, characterized in that, The pit (1) is a long strip-shaped stepped groove made of reinforced concrete, including a first groove (11) and a second groove (12). The first groove (11) is higher than the second groove (12) and the first groove (11) is wider than the second groove (12). Guide rails (111) are provided on both sides of the bottom of the first groove (11). The top of the first groove (11) is flush with the ground plane (8). The second groove (12) is equipped with an A proximity switch (131) and a B proximity switch (132) for detecting the position of the loading trolley (3) at one end near the saddle (2) and at the end, respectively.

3. The automatic steel coil feeding device as described in claim 2, characterized in that, The saddle (2) includes a saddle body (21) made of steel plate and steel section welded together and spaced above the sliding cover plate (4) at the corresponding position. A PU plate (22) is bolted to the contact surface between the top surface of the saddle body (21) and the steel coil 6. A laser sensor (23) is provided at the center of the top surface of the saddle body (21) on one side of the PU plate (22). The control system signal is connected to the laser sensor (23).

4. The automatic steel coil feeding device as described in claim 3, characterized in that, The sliding cover plate (4) includes two pairs of transmission shafts (41) respectively arranged on the outer sides of both ends of the pit (1). The two ends of the transmission shafts (41) are fixed by shaft fixing seats (42) and equipped with transmission sprockets (44). All transmission sprockets (44) are equipped with C transmission chains (45). The two ends of the C transmission chains (45) are connected to the two ends of the moving direction of the support platform (311). Connecting plates (43) are evenly arranged between the two C transmission chains (45). The top two sides of the first groove (11) are connected by cantilever and auxiliary plates (46). The connecting plates (43) are located between the two auxiliary plates (46).

5. The automatic steel coil feeding device as described in claim 4, characterized in that, The steel coil center detection device (5) includes a square tube frame (51) consisting of a vertically arranged A square tube (511) and a B square tube (512) connecting the two A square tubes (511). A diameter measuring sensor (52) is vertically arranged on the A square tube (511), and a width measuring sensor (53) is arranged on the B square tube (512). Both the diameter measuring sensor (52) and the width measuring sensor (53) are connected to the control system signal.

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