An intermediate frequency heating furnace with automatic material cleaning

Abstract

The present invention relates to the technical field of intermediate frequency heating furnaces, and particularly to an intermediate frequency heating furnace with automatic material cleaning. It includes an intermediate frequency heating furnace, a feeding device, a control system, and further includes a material conveying device, a discharging device, and a frame device. The feeding device and the discharging device are respectively located on both sides of the intermediate frequency heating furnace. The frame device is located below the intermediate frequency heating furnace and the discharging device. The material conveying device is arranged inside the frame device. The present invention provides an intermediate frequency heating furnace with automatic material cleaning, which effectively solves the problems of incomplete discharging and high-temperature adhesion through systematic optimization, significantly reduces the need for manual intervention, improves the discharging efficiency and process stability, and realizes high-efficiency continuous production.

Description

Technical Field

[0001] The present invention relates to the technical field of intermediate frequency heating furnaces, and particularly to an intermediate frequency heating furnace with automatic material cleaning. Background Art

[0002] Currently, the intermediate frequency heating furnace generally adopts a design scheme of pushing materials into the furnace by a single-side cylinder: the cylinder at the feeding end pushes the workpieces into the furnace chamber in sequence, and the workpieces are arranged in a closely packed state in the furnace. When discharging materials, the workpieces at the discharging end need to be indirectly driven to move out by the continuous pushing of the workpieces at the feeding end. However, limited by the physical constraint of the telescopic stroke of the cylinder, this scheme cannot completely push out all the workpieces in the furnace, resulting in the problem of residual discharging. In addition, when the furnace temperature is relatively high, such as above 1200 °C, local melting on the surface of the workpieces is likely to cause adhesion between adjacent workpieces, further increasing the discharging resistance and seriously affecting the production continuity.

[0003] In view of the above problems, the present invention proposes an intermediate frequency heating furnace with automatic material cleaning, which effectively solves the problems of incomplete discharging and high-temperature adhesion through systematic optimization. This scheme significantly reduces the need for manual intervention, improves the discharging efficiency and process stability, and finally realizes high-efficiency continuous production. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose an intermediate frequency heating furnace with automatic material cleaning.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: an intermediate frequency heating furnace with automatic material cleaning, including an intermediate frequency heating furnace, a feeding device, a control system, and further including a material feeding device, a discharging device, and a frame device. The feeding device and the discharging device are respectively located on both sides of the intermediate frequency heating furnace, the frame device is located below the intermediate frequency heating furnace and the discharging device, and the material feeding device is arranged inside the frame device;

[0006] The material feeding device includes a lifting beam, a pushing and pulling beam located above the lifting beam, a movable guide rail and a fixed guide rail. The movable guide rail and the fixed guide rail are arranged inside the intermediate frequency heating furnace and above the pushing and pulling beam. The lower plane of the lifting beam is fixedly connected with a lifting oil cylinder, and one end of the pushing and pulling beam is fixedly connected with a pushing and pulling oil cylinder;

[0007] The discharging device includes a guard plate assembly, a base, a motor located below the base, a first transmission assembly located above the base, and a second transmission assembly located at the upper left of the first transmission assembly;

[0008] The frame device includes a frame, a frame top plate fixed on the top surface of the frame, and frame door panels fixedly connected to the outer side surfaces of the four sides of the frame;

[0009] A material pushing assembly is arranged behind the feeding device.

[0010] Furthermore, a number of lifting beam support plates and rectangular beams with equal spacing are symmetrically fixed on the left and right sides of the lifting beam, a guide sleeve is fixed on the upper and lower panels inside the rectangular beam, a guide rod passes through the rectangular beam up and down and is slidably placed in the guide sleeve, the upper and lower ends of the guide rod outside the rectangular beam are fixedly connected to a flange, the bottom of the guide rod is fixedly connected to a guide rod mounting plate, and the guide rod mounting plate is fixed to the frame of the frame device.

[0011] Furthermore, an inverted V-shaped guide rail is fixedly connected to both sides of the upper plane of the lifting beam, and a plurality of guide rail guide wheels are slidably arranged on the guide rail. The guide rail guide wheels are fixedly connected to the guide rail guide wheel mounting seats, and the guide rail guide wheel mounting seats are symmetrically fixed on both sides of the bottom surface of the push-pull beam.

[0012] Furthermore, the movable guide rails are a pair and pass through the medium frequency heating furnace from front to back. Fixed support rods are fixedly connected below both ends of the movable guide rails. The upper and lower parts of the two adjacent fixed support rods are fixedly connected by fixed support rod connecting seats, and the bottom ends are fixedly connected to the upper plane of the push-pull beam through fixed support rod mounting seats. A cooling water interface is also provided on one side of the fixed support rod, which is connected to the bottom surface of the movable guide rail.

[0013] Furthermore, the fixed guide rails are three pairs with the same spacing distance, and are located obliquely below the inner side of the movable guide rail, the fixed guide rails are fixed in the medium frequency heating furnace, and the bottom surfaces of both ends of the fixed guide rails are connected with two cooling water interfaces, and fixed guide rail guide rods are provided on both sides of the fixed guide rails, and the top and bottom ends of the fixed guide rail guide rods are respectively fixedly connected with a fixed guide rail guide roller mounting seat and a fixed guide rail guide roller mounting seat, and a fixed guide rail guide sleeve is provided on the middle sliding sleeve of the fixed guide rail guide rod, and a fixed guide rail guide roller is fixedly connected to the fixed guide rail guide roller mounting seat, and the fixed guide rail guide roller rolls on the bottom surface of the movable guide rail, and a fixed guide rail guide roller is fixedly connected to the fixed guide rail guide roller mounting seat, and the fixed guide rail guide roller rolls on the upper plane of the push-pull beam, and a flange two is fixedly connected in the middle of the fixed guide rail guide sleeve, and two adjacent fixed guide rail guide sleeves are fixedly connected by a connecting plate below the flange two.

[0014] Furthermore, the transmission assembly 1 includes a plurality of rotating shaft-fixing seats fixed on both sides of the base plane and symmetrically arranged, a rotating shaft 1 rotatably fixed between two symmetrical rotating shaft-fixing seats, and a transmission wheel fixed on the rotating shaft 1. A plurality of gears 1 are fixed at one end of all the rotating shafts 1, and the adjacent gears 1 on the left and right are respectively connected by chain 1. The leftmost gear 1 is connected to the transmission assembly 2 by chain 2, and the rightmost gear 1 is connected to the output shaft of the motor by chain 3.

[0015] The transmission component 2 includes gear 2, gear 3, rotating shaft 2, rotating shaft 3, chain 2, and a scraper. The two ends of the rotating shaft 2 are respectively rotatably fixed on the two side panels of the N-shaped shield. There are two rotating shafts 2 and they are on the same horizontal line. Two gears 5 are fixed in the middle of the rotating shaft 2. The two corresponding gears 5 on the rotating shaft 2 are respectively connected by chain 4. The scraper is fixed at the bottom of the chain 4. The rotating shaft 3 is located obliquely above the rotating shaft 2 and the two ends are respectively rotatably fixed on the two side panels of the N-shaped shield. The gear 3 is located on the outside of the side panel of the N-shaped shield and is fixedly connected to one end of the rotating shaft 3. One side of the gear 3 is provided with a gear 4 that is rotatably fixed to the outside of the side panel of the N-shaped shield. The inner side of the chain 2 meshes with gear 1, gear 3, and gear 4, and the outer side meshes with gear 2.

[0016] Furthermore, the guard plate assembly includes an N-shaped guard covering the top of the transmission assembly 2 and fixed on the base, sheet metal guard 1 and sheet metal guard 3, sheet metal guard 2, and sheet metal guard 4 respectively fixed on the two outer sides of the N-shaped guard, the sheet metal guard 2 is fixed on the outside of the transmission assembly 1, chain 3, and the motor, and the sheet metal guard 4 is fixed on the other outer side of the transmission assembly 1.

[0017] Furthermore, the discharge port of the medium frequency heating furnace is provided with a temperature sensor.

[0018] The frame includes several vertical support frames and several horizontal support frames fixed on the vertical support frames. A medium frequency heating furnace is fixedly connected to the middle of the upper plane of the frame top plate. An escalator is provided on one side of the frame device near the unloading device. Fences are fixedly provided on both sides of the escalator and around the upper plane of the frame device.

[0019] The bottom surface of the jacking oil cylinder is fixed on the frame, and the telescopic end of the jacking oil cylinder is fixedly connected to the bottom surface of the jacking beam. One end of the push-pull oil cylinder is fixed on the frame, and the telescopic end of the push-pull oil cylinder is fixedly connected to the top surface of the push-pull beam.

[0020] An automatic material clearing method includes the above-mentioned automatic material clearing medium frequency heating furnace and the following steps:

[0021] S1. Loading: The control system controls the telescopic end of the push-pull cylinder to extend, pushing the push-pull beam to drive the movable guide rail to move horizontally close to the loading device. The loading device lifts the workpiece to the front of the fixed guide rail, and then the push assembly pushes the workpiece onto the movable guide rail;

[0022] S2, feeding: The control system controls the telescopic end of the jacking cylinder to extend and lift the workpiece on the movable guide rail. Then, the telescopic end of the push-pull cylinder retracts, driving the workpiece to move horizontally toward the unloading device. The telescopic end of the jacking cylinder retracts and drives the workpiece down to its original height. At this time, the workpiece falls onto the fixed guide rail and does not touch the movable guide rail.

[0023] S3. Blanking: The temperature sensor monitors the temperature of the workpiece at the discharge port of the intermediate frequency heating furnace in real time. After the set value is reached, the telescopic end of the push-pull oil cylinder extends, driving the movable guide rail to move horizontally in the direction of the loading device. Then, the telescopic end of the lifting oil cylinder extends, and the movable guide rail lifts the workpiece. Subsequently, the telescopic end of the push-pull oil cylinder retracts, and the movable guide rail drives the workpiece to move horizontally in the direction of the blanking device until the workpiece at the discharge port of the intermediate frequency heating furnace moves below the second transmission component.

[0024] S4. Repeat steps S1 - S3 until all workpieces are completed with the heating work.

[0025] Further, in S2, it further includes:

[0026] S21. Repeat steps S1 - S2 until the fixed guide rail in the intermediate frequency heating furnace is full of workpieces.

[0027] In S3, it further includes:

[0028] S31. The control system controls the rotation of the output shaft of the motor, sequentially driving the first transmission component and the second transmission component to rotate.

[0029] S32. The second transmission component scrapes the workpiece below it and moves the workpiece to the upper left side of the first transmission component.

[0030] S33. The first transmission component continues to rotate and drives the workpiece to move to the upper right side of the first transmission component.

[0031] S34. The robotic arm grabs the workpiece and sends it to the next process.

[0032] In S33, it further includes:

[0033] S331. If the temperature sensor fails or is under maintenance, after the workpiece is moved to the upper right side of the first transmission component, manually detect the temperature of the workpiece. If the temperature does not reach the set value, the control system controls the output shaft of the motor to reverse, driving the workpiece above the right side of the first transmission component back to the upper left side of the first transmission component, and the second transmission component rotates in the reverse direction to scrape the workpiece and move it back to the movable guide rail.

[0034] S332. The control system controls the telescopic end of the push-pull oil cylinder to extend, bringing the workpiece back into the intermediate frequency heating furnace to continue heating until the temperature reaches the set value. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is the front view of the present invention;

[0036] Figure 2 is the top view of the present invention;

[0037] Figure 3 is the front view of the frame of the frame device in the present invention;

[0038] Figure 4 Top view of the frame device in the present invention;

[0039] Figure 5 Front view of the feeding device in the present invention;

[0040] Figure 6 In the present invention Figure 5 Enlarged view of part A;

[0041] Figure 7 Side view of the feeding device in the present invention;

[0042] Figure 8 Front view of the blanking device without the guard plate assembly in the present invention;

[0043] Figure 9 Right view of the blanking device without the guard plate assembly in the present invention;

[0044] Figure 10 Front view of the blanking device in the present invention;

[0045] Figure 11 Right view of the blanking device in the present invention;

[0046] In the figure: 1, intermediate frequency heating furnace,

[0047] 2, loading device, 21, pushing component,

[0048] 3, feeding device, 31, lifting oil cylinder, 32, pushing and pulling oil cylinder, 33, lifting beam, 34, pushing and pulling beam, 35, lifting beam support plate, 36, rectangular beam, 37, guide rod, 38, guide sleeve, 39, flange one, 310, guide rod mounting plate, 311, guide rail, 312, guide rail guide wheel, 313, fixed guide rail guide sleeve, 314, flange two, 315, connecting plate, 316, fixed guide rail guide roller mounting seat, 317, fixed guide rail guide roller, 318, fixed guide rail guide roller mounting seat, 319, fixed guide rail guide rod, 320, fixed guide rail guide roller, 321, cooling water interface two, 322, cooling water interface one, 323, fixed guide rail, 324, movable guide rail, 325, fixed support rod mounting seat, 326, fixed support rod, 327, fixed support rod connecting seat, 328, guide rail guide wheel mounting seat,

[0049] 4. Blanking device, 41. First transmission assembly, 411. Transmission wheel, 412. First rotating shaft, 413. Fixed seat of the first rotating shaft, 414. First chain, 415. Third chain, 416. First gear, 42. Second transmission assembly, 421. Second chain, 422. Fourth chain, 423. Second rotating shaft, 424. Third rotating shaft, 425. Second gear, 426. Third gear, 427. Fourth gear, 428. Fifth gear, 429. Scraper, 43. Guard plate assembly, 431. First sheet metal guard, 432. Second sheet metal guard, 433. Third sheet metal guard, 434. Fourth sheet metal guard, 435. N-shaped guard, 44. Base, 45. Motor

[0050] 5. Frame device, 51. Frame door panel, 52. Fence, 53. Escalator, 54. Frame, 541. Frame top plate, 542. Opening, 543. Vertical support frame, 544. Horizontal support frame

[0051] 6. Workpiece Specific embodiments

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention

[0054] Embodiment 1, as Figures 1 - 11 shown, an intermediate frequency heating furnace with automatic material cleaning includes an intermediate frequency heating furnace 1, a feeding device 2, and a control system. It is characterized in that it further includes a feeding device 3, a blanking device 4, and a frame device 5. The feeding device 2 and the blanking device 4 are respectively located on both sides of the intermediate frequency heating furnace 1. The frame device 5 is located below the intermediate frequency heating furnace 1 and the blanking device 4. The feeding device 3 is arranged inside the frame device 5

[0055] The feeding device 3 includes a lifting beam 33, a push-pull beam 34 located above the lifting beam 33, a movable guide rail 324 and a fixed guide rail 323. The movable guide rail 324 and the fixed guide rail 323 are arranged inside the intermediate frequency heating furnace 1 and above the push-pull beam 34. A lifting oil cylinder 31 is fixedly connected to the lower plane of the lifting beam 33, and a push-pull oil cylinder 32 is fixedly connected to one end of the push-pull beam 34;

[0056] The blanking device 4 includes a guard plate assembly 43, a base 44, a motor 45 located below the base 44, a first transmission assembly 41 located above the base 44, and a second transmission assembly 42 located at the upper left of the first transmission assembly 41;

[0057] The frame device 5 includes a frame 54, a frame top plate 541 fixed on the top surface of the frame 54, and frame door panels 51 fixedly connected to the outer side surfaces of the four sides of the frame 54;

[0058] A push material assembly 21 is arranged behind the loading device 2.

[0059] In this embodiment, the push material assembly 21 is a loading oil cylinder. This embodiment further includes an electrical control cabinet and a power cabinet arranged on one side of the intermediate frequency heating furnace 1. The power cabinet provides power for the intermediate frequency heating furnace 1 and the electrical control cabinet. The electrical control cabinet controls the expansion and contraction of the telescopic ends of the loading oil cylinder, the lifting oil cylinder 31, and the push-pull oil cylinder 32 through a hydraulic valve. An opening 542 is provided in the middle of the frame top plate 541 for the fixed guide rail guide rod 319, the cooling water interface II 321, the cooling water interface I 322, and the fixed support rod 326 to move.

[0060] Embodiment 2, as Figures 5 - 7 shown, a plurality of lifting beam support plates 35 and rectangular beams 36 with equal spacing are symmetrically fixed on the left and right sides of the lifting beam 33. Guide sleeves 38 are respectively fixed on the upper and lower panels inside the rectangular beam 36. A guide rod 37 passes through the rectangular beam 36 vertically and slides in the guide sleeve 38. Flanges I 39 are fixedly connected to both the upper and lower ends of the guide rod 37 outside the rectangular beam 36. A guide rod mounting plate 310 is fixedly connected to the bottom of the guide rod 37, and the guide rod mounting plate 310 is fixed on the frame 54 of the frame device 5.

[0061] Inverted V-shaped guide rails 311 are fixedly connected to both sides of the upper plane of the lifting beam 33. A plurality of guide rail guide wheels 312 are slidably arranged on the guide rails 311. The guide rail guide wheels 312 are fixedly connected to a guide rail guide wheel mounting seat 328, and the guide rail guide wheel mounting seats 328 are symmetrically fixed on both sides of the bottom surface of the push-pull beam 34.

[0062] In this embodiment, each guide rod 37 is sleeved in two guide sleeves 38, which increases the guiding effect of the guide sleeve 38 and makes the guiding more accurate. A flange 39 fixedly connected to the upper and lower ends of the guide rod 37 plays a role in limiting, respectively restricting the maximum height and the minimum height of the jacking beam 33. Guide rails 311 are provided on both sides of the upper plane of the jacking beam 33, restricting the moving direction of the push-pull beam 34 and making the moving direction of the push-pull beam 34 more accurate.

[0063] Embodiment 3, continue to refer to Figures 5 - 7 , the pair of movable guide rails 324 runs through the intermediate frequency heating furnace 1 from front to back. Fixed support rods 326 are fixedly connected to the lower parts of both ends of the movable guide rails 324. The upper and lower parts of two adjacent fixed support rods 326 are fixedly connected through fixed support rod connection seats 327, and the bottom ends are fixedly connected to the upper plane of the push-pull beam 34 through fixed support rod mounting seats 325. A cooling water interface 322 is also provided on one side of the fixed support rod 326 and is connected to the bottom surface of the movable guide rail 324.

[0064] There are three pairs of fixed guide rails 323 with the same interval distance, and they are located obliquely below the inner side of the movable guide rails 324. The fixed guide rails 323 are fixed in the intermediate frequency heating furnace 1. Cooling water interfaces 321 are connected to the bottom surfaces of both ends of the fixed guide rails 323. Fixed guide rail guide rods 319 are provided on both sides of the fixed guide rails 323. Fixed guide rail guide roller mounting seats 318 and fixed guide rail guide roller mounting seats 316 are fixedly connected to the top and bottom ends of the fixed guide rail guide rods 319 respectively. A fixed guide rail guide sleeve 313 is slidably sleeved in the middle of the fixed guide rail guide rods 319. A fixed guide rail guide roller 320 is fixedly connected to the fixed guide rail guide roller mounting seat 318, and the fixed guide rail guide roller 320 rolls on the bottom surface of the movable guide rail 324. A fixed guide rail guide roller 317 is fixedly connected to the fixed guide rail guide roller mounting seat 316, and the fixed guide rail guide roller 317 rolls on the upper plane of the push-pull beam 34. A flange 314 is fixedly connected to the middle of the fixed guide rail guide sleeve 313, and adjacent fixed guide rail guide sleeves 313 are fixedly connected through a connecting plate 315 below the flange 314.

[0065] In this embodiment, the length of the movable guide rail 324 is 7 to 8 meters, the length of the fixed guide rail 323 is 2 to 3 meters, and the number is 3 pairs. On this basis, the length of the movable guide rail 324 and the fixed guide rail 323 can be increased or decreased according to the situation, and the number of the fixed guide rails 323 can also be increased or decreased. The spacing distance between the movable guide rails 324 must be sufficient to ensure that the fixed guide rail guide rod 319 can move left and right within this spacing distance without being hindered. The upper and lower parts of the two adjacent fixed support rods 326 are fixedly connected by the fixed support rod connecting seat 327 respectively to ensure that the two movable guide rails 324 move synchronously. The provision of multiple fixed guide rail guide rods 319 can not only provide accurate guidance for the movable guide rail 324, but also provide support for the movable guide rail 324 to prevent the movable guide rail 324 from being deformed by the workpiece 6. The length of the fixed guide rail guide sleeve 313 slidably mounted on the middle portion of the fixed guide rail guide rod 319 must be long enough to ensure that the fixed guide rail guide rod 319 can only be raised and lowered along the length direction of the fixed guide rail guide sleeve 313. Two adjacent fixed guide rail guide sleeves 313 are fixedly connected by a connecting plate 315 to ensure that the two adjacent fixed guide rail guide rods 319 move synchronously.

[0066] Cooling water connection 1 322 at one end of the bottom surface of movable guide rail 324 serves as the water inlet, while cooling water connection 1 322 at the other end serves as the water outlet. Cooling water flows through movable guide rail 324. Cooling water connection 2 321 at one end of the bottom surface of fixed guide rail 323 serves as the water inlet, while cooling water connection 2 321 at the other end serves as the water outlet. Cooling water flows through fixed guide rail 323. The core function of cooling water is to dissipate heat and control temperature, reducing the temperature of movable and fixed guide rails 324, 323, preventing overheating and deformation, and extending their service life.

[0067] Example 4, as Figures 8 - 11 As shown, the transmission assembly 1 41 includes a plurality of rotating shaft-fixing seats 413 fixed on both sides of the plane of the base 44 and symmetrically arranged, a rotating shaft 1 412 rotatably fixed between two symmetrical rotating shaft-fixing seats 413, and a transmission wheel 411 fixed on the rotating shaft 1 412. A plurality of gears 1 416 are also fixed at one end of all rotating shafts 1 412. The gears 1 416 adjacent to each other on the left and right are respectively connected by a chain 1 414. The leftmost gear 1 416 is connected to the transmission assembly 2 42 by a chain 2 421. The rightmost gear 1 416 is connected to the output shaft of the motor 45 by a chain 3 415.

[0068] The transmission assembly 2 42 includes a gear 2 425, a gear 3 426, a rotating shaft 2 423, a rotating shaft 3 424, a chain 2 421, and a scraper 429. The two ends of the rotating shaft 2 423 are respectively rotatably fixed on the two side panels of the n-shaped shield 435. The rotating shaft 2 423 is two and is on the same horizontal line. Two gears 5 428 are fixed in the middle of the rotating shaft 2 423. The two corresponding gears 5 428 on the rotating shaft 2 423 are respectively connected by the chain 4 422. The scraper 429 is fixed on the chain 4 At the bottom of 422, the rotating shaft three 424 is located obliquely above the rotating shaft two 423 and its two ends are respectively rotatably fixed on the two side panels of the N-shaped shield 435, the gear three 426 is located on the outside of the side panel of the N-shaped shield 435, and is fixedly connected to one end of the rotating shaft three 424, and one side of the gear three 426 is provided with a gear four 427 rotatably fixed on the outside of the side panel of the N-shaped shield 435, the inner side of the chain two 421 engages with gear one 416, gear three 426, and gear four 427, and the outer side engages with gear two 425.

[0069] The guard plate assembly 43 includes an N-shaped guard 435 covering the transmission assembly 2 42 and fixed on the base 44, a sheet metal guard 1 431 and a sheet metal guard 3 433, a sheet metal guard 2 432, and a sheet metal guard 4 434 respectively fixed on the two outer sides of the N-shaped guard 435. The sheet metal guard 2 432 is fixed on the outside of the transmission assembly 1 41, the chain 3 415, and the motor 45, and the sheet metal guard 4 434 is fixed on the other outer side of the transmission assembly 1 41.

[0070] In this embodiment, after the movable guide rail 324 moves to the right, it is just located below the transmission component 2 42, the right end of the movable guide rail 324 is close to the transmission component 1 41, and the horizontal height of the movable guide rail 324 and the transmission wheel 411 match, so that the workpiece 6 can move back and forth between the movable guide rail 324 and the transmission wheel 411.

[0071] Chain 2 421 meshes with gear 1 416, gear 3 426, and gear 4 427 on the inside and gear 2 425 on the outside, ensuring that transmission assembly 1 41 and transmission assembly 2 42 rotate in opposite directions. Gear 2 425, located diagonally below gear 3 426, increases the number of effective meshing teeth between chain 2 421 and gear 2 425, ensuring sufficient meshing teeth to improve transmission efficiency, reduce wear, and minimize noise. Gear 4 427 increases the spacing between chain 2 421 at gear 2 425, ensuring safe rotation of chain 2 421.

[0072] When the workpiece 6 needs to be moved from the movable guide rail 324 to the driving wheel 411, the second transmission assembly 42 rotates counterclockwise, causing the scraping plate 429 to scrape the workpiece 6 from left to right and move it to the driving wheel 411 at the left end. At this time, the first transmission assembly 41 rotates clockwise to make the workpiece 6 continue to move to the right until it is completely on the driving wheel 411; when the workpiece 6 needs to be moved from the driving wheel 411 to the movable guide rail 324, the first transmission assembly 41 rotates counterclockwise to make the workpiece 6 move from right to left to the movable guide rail 324, and the second transmission assembly 42 rotates clockwise, causing the scraping plate 429 to scrape the workpiece 6 from right to left and completely move it to the movable guide rail 324.

[0073] Embodiment 5, as Figures 1 - 5 shown, a temperature sensor is provided at the discharge port of the intermediate frequency heating furnace 1.

[0074] The frame 54 includes a plurality of vertical support frames 543 and a plurality of horizontal support frames 544 fixed on the vertical support frames 543. The middle part of the upper plane of the frame top plate 541 is fixedly connected with the intermediate frequency heating furnace 1. An escalator 53 is provided on one side of the frame device 5 near the blanking device 4. Fences 52 are fixedly provided on both sides of the escalator 53 and around the upper plane of the frame device 5.

[0075] The bottom surface of the lifting oil cylinder 31 is fixed on the frame 54, and the telescopic end of the lifting oil cylinder 31 is fixedly connected to the bottom surface of the lifting beam 33. One end of the push-pull oil cylinder 32 is fixed on the frame 54, and the telescopic end of the push-pull oil cylinder 32 is fixedly connected to the top surface of the push-pull beam 34.

[0076] In this embodiment, an escalator 53 is provided, and maintenance channels are left on both sides of the intermediate frequency heating furnace 1 to facilitate the maintenance and repair work of the equipment by the staff. When the temperature sensor fails or needs to be repaired, the staff can stand on the maintenance channel beside the blanking device 4 and use a temperature measuring instrument (such as an infrared thermometer) to manually measure the temperature of the workpiece 6 on the blanking device 4.

[0077] Embodiment 6, on the basis of the above embodiments, as Figures 1 - 11 shown, an automatic material cleaning method includes the following steps:

[0078] S1. Loading: The control system controls the telescopic end of the push-pull oil cylinder 32 to extend, pushing the push-pull beam 34 to drive the movable guide rail 324 to move horizontally close to the loading device 2. The loading device 2 lifts the workpiece 6 in front of the fixed guide rail 323, and then the pushing component 21 pushes the workpiece 6 onto the movable guide rail 324.

[0079] S2. Feeding: The control system controls the telescopic end of the lifting oil cylinder 31 to extend, jacking up the lifting beam 33. The lifting beam 33 drives the push-pull beam 34, the movable guide rail 324, and the workpiece 6 on the movable guide rail 324 to rise in sequence. Then, the control system controls the telescopic end of the push-pull oil cylinder 32 to retract, pulling the push-pull beam 34 to drive the movable guide rail 324 and the workpiece 6 on the movable guide rail 324 to horizontally move a certain distance in the direction of the blanking device 4. After that, the control system controls the telescopic end of the lifting oil cylinder 31 to retract, driving the lifting beam 33 back to the original position. The lifting beam 33 drives the push-pull beam 34, the movable guide rail 324, and the workpiece 6 on the movable guide rail 324 to descend to the original height in sequence. At this time, the workpiece 6 falls onto the fixed guide rail 323 and is not in contact with the movable guide rail 324.

[0080] S3. Blanking: The temperature sensor monitors the temperature of the workpiece 6 at the discharge port of the intermediate frequency heating furnace 1 in real time and sends the data to the control system. After the control system determines that the temperature of the workpiece 6 reaches the set value, it controls the telescopic end of the push-pull oil cylinder 32 to extend, pushing the push-pull beam 34 to drive the movable guide rail 324 to horizontally move a certain distance in the direction of the loading device 2. Then, the control system controls the telescopic end of the lifting oil cylinder 31 to extend, driving the movable guide rail 324 to rise. The workpiece 6 on the fixed guide rail 323 is then jacked up by the movable guide rail 324. Subsequently, the control system controls the telescopic end of the push-pull oil cylinder 32 to retract, pushing the push-pull beam 34 to drive the movable guide rail 324 to horizontally move in the direction of the blanking device 4 until the workpiece 6 at the discharge port of the intermediate frequency heating furnace 1 moves to the lower part of the transmission component two 42.

[0081] S4. Repeat steps S1 - S3 until all workpieces 6 complete the heating work.

[0082] What is also included in S2 is as follows:

[0083] S21. Repeat steps S1 - S2 until the fixed guide rail 323 in the intermediate frequency heating furnace 1 is filled with workpieces 6, and the workpieces 6 are arranged at intervals in the intermediate frequency heating furnace 1 and do not contact each other.

[0084] What is also included in S3 is as follows:

[0085] S31. The control system controls the output shaft of the motor 45 to rotate, driving the transmission component one 41 and the transmission component two 42 to rotate in sequence. Specifically, it drives the gear one 416, the gear two 425, the gear three 426, the gear four 427, and the gear five 428 to rotate through the chain three 415, the chain one 414, the chain two 421, and the chain four 422 in sequence, and then drives the scraper 429 and the transmission wheel 411 to rotate.

[0086] S32. The second transmission component 42 scrapes the workpiece 6 below it and moves it above the left side of the first transmission component 41. Specifically, the scraper 429 rotates with the fourth chain 422 to the left end of the workpiece 6, and scrapes the workpiece 6 below the second transmission component 42 to move it above the left end of the transmission wheel 411.

[0087] S33. The first transmission component 41 continues to rotate to drive the workpiece 6 to move above the right side of the first transmission component 41. Specifically, the transmission wheel 411 rotates to drive the workpiece 6 to move above the right end of the transmission wheel 411.

[0088] S34. The robotic arm grabs the workpiece 6 and sends it to the next process.

[0089] The S33 also includes:

[0090] S331. If the temperature sensor fails or is under maintenance, after the workpiece 6 is moved above the right side of the first transmission component 41 (i.e., above the right end of the transmission wheel 411), manually detect the temperature of the workpiece 6. If the temperature does not reach the set value, the control system controls the output shaft of the motor 45 to reverse, driving the workpiece 6 above the right side of the first transmission component 41 (i.e., above the right end of the transmission wheel 411) back to above the left side of the first transmission component 41 (i.e., above the left end of the transmission wheel 411). The second transmission component 42 rotates in the reverse direction to make the scraper 429 scrape the workpiece 6 and move it back to the movable guide rail 324.

[0091] S332. The control system controls the telescopic end of the push-pull oil cylinder 32 to extend, bringing the workpiece 6 back into the intermediate frequency heating furnace 1 to continue heating until the temperature reaches the set value.

[0092] As mentioned above, only the preferred specific embodiments of the present invention are described, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An intermediate frequency heating furnace with automatic material clearing, comprising an intermediate frequency heating furnace (1), a feeding device (2), and a control system, characterized in that, It also includes a feeding device (3), a blanking device (4), and a frame device (5). The feeding device (2) and the blanking device (4) are respectively located on both sides of the intermediate frequency heating furnace (1). The frame device (5) is located below the intermediate frequency heating furnace (1) and the blanking device (4). The feeding device (3) is arranged inside the frame device (5). The feeding device (3) includes a jacking beam (33), a push-pull beam (34) located above the jacking beam (33), a movable guide rail (324), and a fixed guide rail (323). The movable guide rail (324) and the fixed guide rail (323) are arranged inside the intermediate frequency heating furnace (1) and above the push-pull beam (34). A jacking oil cylinder (31) is fixedly connected to the lower plane of the jacking beam (33). One end of the push-pull beam (34) is fixedly connected to a push-pull oil cylinder (32). The blanking device (4) includes a guard plate assembly (43), a base (44), a motor (45) located below the base (44), a first transmission assembly (41) located above the base (44), and a second transmission assembly (42) located in the upper left of the first transmission assembly (41). The frame device (5) includes a frame (54), a frame top plate (541) fixed on the top surface of the frame (54), and frame door panels (51) fixedly connected to the outer side surfaces around the frame (54). A pushing component (21) is arranged behind the feeding device (2). Inverted V-shaped guide rails (311) are fixedly connected to both sides of the upper plane of the jacking beam (33). A plurality of guide rail guide wheels (312) are slidably arranged on the guide rails (311). The guide rail guide wheels (312) are fixedly connected to a guide rail guide wheel mounting seat (328). The guide rail guide wheel mounting seats (328) are symmetrically fixed on both sides of the bottom surface of the push-pull beam (34). There are a pair of movable guide rails (324), which run through the intermediate frequency heating furnace (1) from front to back. Fixed support rods (326) are fixedly connected to the lower parts of both ends of the movable guide rails (324). The upper parts and lower parts of adjacent two fixed support rods (326) are fixedly connected through fixed support rod connection seats (327), and the bottom ends are fixedly connected to the upper plane of the push-pull beam (34) through fixed support rod mounting seats (325). A first cooling water interface (322) is also arranged on one side of the fixed support rod (326) and is connected to the bottom surface of the movable guide rail (324). The fixed guide rails (323) are three pairs with the same interval distance and are located obliquely below the inner side of the movable guide rail (324). The fixed guide rails (323) are fixed inside the intermediate frequency heating furnace (1). The bottom surfaces of both ends of the fixed guide rails (323) are connected with cooling water interfaces II (321). Fixed guide rail guide rods (319) are arranged on both sides of the fixed guide rails (323). At the top and bottom ends of the fixed guide rail guide rods (319), fixed guide rail guide roller mounting seats (318) and fixed guide rail guide drum mounting seats (316) are respectively fixedly connected. A fixed guide rail guide sleeve (313) is slidably sleeved in the middle of the fixed guide rail guide rods (319). A fixed guide rail guide roller (320) is fixedly connected to the fixed guide rail guide roller mounting seat (318). The fixed guide rail guide roller (320) rolls on the bottom surface of the movable guide rail (324). A fixed guide rail guide drum (317) is fixedly connected to the fixed guide rail guide drum mounting seat (316). The fixed guide rail guide drum (317) rolls on the upper plane of the push-pull beam (34). A flange II (314) is fixedly connected to the middle of the fixed guide rail guide sleeve (313). Adjacent two fixed guide rail guide sleeves (313) are fixedly connected by a connecting plate (315) below the flange II (314).

2. An intermediate frequency heating furnace with automatic material cleaning according to claim 1, characterized in that On the left and right sides of the lifting beam (33), a number of lifting beam support plates (35) and rectangular beams (36) with equal intervals are symmetrically fixed. Guide sleeves (38) are respectively fixed on the upper and lower panels inside the rectangular beam (36). A guide rod (37) penetrates through the rectangular beam (36) up and down and slides in the guide sleeve (38). Flange I (39) is fixedly connected to both the upper and lower ends of the guide rod (37) outside the rectangular beam (36). A guide rod mounting plate (310) is fixedly connected to the bottom of the guide rod (37). The guide rod mounting plate (310) is fixed on the frame (54) of the frame device (5). The first transmission component (41) includes a plurality of first rotating shaft fixing seats (413) which are fixed on both sides of the upper plane of the base (44) and are symmetrically arranged, a first rotating shaft (412) which is rotatably fixed between two symmetric first rotating shaft fixing seats (413), and a transmission wheel (411) which is fixed on the first rotating shaft (412). A first gear (416) is fixed at one end of all the first rotating shafts (412). The left and right adjacent first gears (416) are respectively connected by a first chain (414) for transmission. The leftmost first gear (416) is connected with the second transmission component (42) by a second chain (421). The rightmost first gear (416) is connected with the output shaft of the motor (45) by a third chain (415). The second transmission component (42) includes a second gear (425), a third gear (426), a second rotating shaft (423), a third rotating shaft (424), a second chain (421), and a scraper (429). Both ends of the second rotating shaft (423) are rotatably fixed on the two side panels of the n-shaped shield (435). There are two second rotating shafts (423) on the same horizontal line. Two fifth gears (428) are fixed in the middle of the second rotating shaft (423). The two corresponding fifth gears (428) on the second rotating shaft (423) are respectively connected by a fourth chain (422) for transmission. The scraper (429) is fixed at the bottom of the fourth chain (422). The third rotating shaft (424) is located obliquely above the second rotating shaft (423), and both ends are rotatably fixed on the two side panels of the n-shaped shield (435). The third gear (426) is located outside the side panel of the n-shaped shield (435) and is fixedly connected to one end of the third rotating shaft (424). A fourth gear (427) rotatably fixed outside the side panel of the n-shaped shield (435) is arranged on one side of the third gear (426). The inner side of the second chain (421) meshes with the first gear (416), the third gear (426), and the fourth gear (427), and the outer side meshes with the second gear (425); The guard plate component (43) includes an n-shaped shield (435) covering the second transmission component (42) and fixed on the base (44), a first sheet metal shield (431) and a third sheet metal shield (433) respectively fixed on the two outer sides of the n-shaped shield (435), a second sheet metal shield (432), and a fourth sheet metal shield (434). The second sheet metal shield (432) is fixed outside the first transmission component (41), the third chain (415), and the motor (45). The fourth sheet metal shield (434) is fixed on the other outer side of the first transmission component (41); A temperature sensor is provided at the discharge port of the intermediate frequency heating furnace (1). The frame (54) includes a plurality of vertical support frames (543) and a plurality of horizontal support frames (544) fixed on the vertical support frames (543). The middle of the upper plane of the frame top plate (541) is fixedly connected with an intermediate frequency heating furnace (1). A ladder (53) is arranged on one side of the frame device (5) near the feeding device (4). Fences (52) are fixedly arranged on both sides of the ladder (53) and around the upper plane of the frame device (5). The bottom surface of the lifting oil cylinder (31) is fixed on the frame (54), and the telescopic end of the lifting oil cylinder (31) is fixedly connected to the bottom surface of the lifting beam (33). One end of the push-pull oil cylinder (32) is fixed on the frame (54), and the telescopic end of the push-pull oil cylinder (32) is fixedly connected to the top surface of the push-pull beam (34).

3. An automatic material clearing method, comprising an intermediate frequency heating furnace for automatic material clearing according to any one of claims 1-2, characterized in that, It includes the following steps: S1. Loading: The control system controls the telescopic end of the push-pull oil cylinder (32) to extend, pushing the push-pull beam (34) to drive the movable guide rail (324) to move horizontally close to the loading device (2). The loading device (2) lifts the workpiece (6) in front of the fixed guide rail (323), and then the pusher assembly (21) pushes the workpiece (6) onto the movable guide rail (324); S2. Feeding: The control system controls the telescopic end of the lifting oil cylinder (31) to extend, jack up the workpiece (6) on the movable guide rail (324), and then, the telescopic end of the push-pull oil cylinder (32) retracts, driving the workpiece (6) to horizontally move towards the blanking device (4). After that, the telescopic end of the lifting oil cylinder (31) retracts to drive the workpiece (6) to descend to the original height. At this time, the workpiece (6) falls onto the fixed guide rail (323) and is not in contact with the movable guide rail (324). S3. Blanking: The temperature sensor monitors the temperature of the workpiece (6) at the discharge port of the intermediate frequency heating furnace (1) in real time. After reaching the set value, the telescopic end of the push-pull oil cylinder (32) extends, driving the movable guide rail (324) to horizontally move towards the loading device (2). Then, the telescopic end of the lifting oil cylinder (31) extends, and the movable guide rail (324) jacks up the workpiece (6). Subsequently, the telescopic end of the push-pull oil cylinder (32) retracts, and the movable guide rail (324) drives the workpiece (6) to horizontally move towards the blanking device (4) until the workpiece (6) at the discharge port of the intermediate frequency heating furnace (1) moves below the second transmission component (42). S4. Repeat steps S1 - S3 until all workpieces (6) complete the heating operation.

4. An automatic blanking method according to claim 3, characterized in that in S2, it further includes: S21. Repeat steps S1 - S2 until the fixed guide rail (323) in the intermediate frequency heating furnace (1) is full of workpieces (6); in S3, it further includes: S31. The control system controls the output shaft of the motor (45) to rotate, sequentially driving the first transmission component (41) and the second transmission component (42) to rotate; S32. The second transmission component (42) scrapes the workpiece (6) below it to move above the left side of the first transmission component (41); S33. The first transmission component (41) continues to rotate to drive the workpiece (6) to move above the right side of the first transmission component (41); S34. The robotic arm grabs the workpiece (6) and sends it to the next process; in S33, it further includes: S331. If the temperature sensor fails or is under maintenance, after the workpiece (6) is moved above the right side of the first transmission component (41), manually detect the temperature of the workpiece (6). If the temperature does not reach the set value, the control system controls the output shaft of the motor (45) to reverse, driving the workpiece (6) above the right side of the first transmission component (41) back above the left side of the first transmission component (41), and the second transmission component (42) rotates in the reverse direction to scrape the workpiece (6) and translate it back onto the movable guide rail (324); S332. The control system controls the telescopic end of the push-pull oil cylinder (32) to extend, bringing the workpiece (6) back into the intermediate frequency heating furnace (1) to continue heating until the temperature reaches the set value.

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