Automatic rejecting device for blanks entering furnace

Abstract

The utility model discloses an automatic furnace blank removing device, and relates to the technical field of bar production. The arrangement direction of the blank frames is parallel to the arrangement direction of the roller ways, a lifting flat supporting type removing device is arranged between the roller ways and the blank frames and comprises a sliding rail, a movable table is slidably connected to the upper portion of the sliding rail, and a lifting table is installed above the movable table through a lifting device. Anti-falling parts are upwards arranged on the two side edges of the top of the lifting table in the moving direction of the moving table, and a translation device is installed on one side of the moving table. The automatic removal device has the beneficial effects that the special-shaped steel billets on the roller way are quickly moved to the billet frame through the lifting flat support type removal device, and the special-shaped steel billets on the billet frame are moved away through the rotation of the lifting rod and the matching of the clamping hook part, so that the storage quantity of the special-shaped steel billets in a small space is increased; and the normal production efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bar production, in particular to an automatic rejecting device for furnace-entered blanks. Background Art

[0002] The billets pass through the furnace rollers before entering the furnace. After continuous casting, each billet is transported to the billet storage platform of the heating furnace by steam transport or hot delivery rollers, stacked side by side, and then hoisted onto the furnace rollers by crane and sent to the front rollers of the heating furnace before entering the furnace. During transportation or stacking, the billets may be deformed vertically or horizontally during transportation and storage due to uneven force or other factors when the hot billets are stored. At the same time, due to uneven cooling of the molten steel in the crystallizer, the thickness of the primary billet shell is uneven, resulting in de-squareness.

[0003] In the production process, it is inevitable that special-shaped billets will appear. If they are not removed, they may cause damage to the furnace walls or equipment after entering the furnace, and seriously affect normal production, which is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic rejecting device for billets entering the furnace in view of the shortcomings and defects in the prior art. The automatic rejecting device for billets entering the furnace quickly moves the special-shaped billets on the roller to the billet rack through a lifting and flat-supporting rejecting device, and removes the special-shaped billets on the billet rack through the rotation of the lifting rod and the cooperation of the hook part, thereby expanding the storage quantity of the special-shaped billets in a small space and ensuring the efficiency of normal production.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic rejection device for billets entering the furnace, which includes a roller table 1 arranged in a line for conveying billets and two or more billet racks 2 arranged in a line, characterized in that the arrangement direction of the billet racks 2 is parallel to the arrangement direction of the roller table 1, and a lifting and flat-supporting rejection device 3 is arranged between the roller table 1 and the billet rack 2, the lifting and flat-supporting rejection device 3 includes a slide rail 32, a moving platform 33 is slidably connected above the slide rail 32, a lifting platform 35 is installed above the moving platform 33 through a lifting device 37, and an anti-slip portion 351 is upwardly arranged on the top of the lifting platform 35 along the two side edges of the moving direction of the moving platform 33, and a translation device 36 is installed on one side of the moving platform 33.

[0006] Furthermore, a plurality of bases 31 are installed at the bottom of the slide rail 32 .

[0007] Furthermore, a roller 34 is installed on the moving platform 33 , and the roller 34 rolls on the top of the slide rail 32 .

[0008] Furthermore, the translation device 36 adopts a hydraulic push rod, and the lifting device 37 adopts a hydraulic jack.

[0009] Furthermore, a rotating device 41 is installed above the blank frame 2, and the driving short rotation of the rotating device 41 is connected to a lifting rod 42, and the lifting rod 42 is provided with a plurality of hook portions 43 arranged at equal intervals along its length direction.

[0010] Furthermore, the lifting rod 42 is composed of a multi-section telescopic rod structure composed of multiple groups of section rods 421 that are stacked and telescoped in sequence, the hook portion 43 is arranged on the section rod 421, and a counterweight portion 44 is arranged at the end of the section rod 421.

[0011] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the automatic rejection device for the billets entering the furnace quickly moves the special-shaped billets on the roller to the billet rack through the lifting and flat-supporting rejection device, and removes the special-shaped billets on the billet rack through the rotation of the lifting rod and the cooperation of the hook part, thereby expanding the storage quantity of special-shaped billets in a small space and ensuring the efficiency of its normal production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the lifting and flat-supporting type rejection device 3 in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the lifting platform 35 in the utility model;

[0016] Figure 4 It is a schematic diagram of the cooperation structure of the lifting rod on the blank frame 2 of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the lifting rod 42 in the present utility model.

[0018] Explanation of the reference numerals: roller 1, billet rack 2, lifting and flat-supporting rejection device 3, base 31, slide rail 32, movable platform 33, roller 34, lifting platform 35, translation device 36, lifting device 37, rotating device 41, lifting rod 42, hook part 43, counterweight part 44, special-shaped steel billet 10, anti-slip part 351, section rod 421. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 5As shown, the technical solution adopted in this specific embodiment is: it includes a roller 1 arranged in a line for conveying steel billets and two or more groups of billet racks 2 arranged in a line, and is characterized in that: the arrangement direction of the billet racks 2 is parallel to the arrangement direction of the roller 1, and a lifting and flat-supporting type rejection device 3 is arranged between the roller 1 and the billet rack 2, and the lifting and flat-supporting type rejection device 3 includes a slide rail 32, and a moving platform 33 is slidably connected above the slide rail 32, and a lifting platform 35 is installed above the moving platform 33 through a lifting device 37, and an anti-slip portion 351 is upwardly arranged on the top of the lifting platform 35 along the two side edges of the moving direction of the moving platform 33, and a translation device 36 is installed on one side of the moving platform 33.

[0020] More specifically, a plurality of bases 31 are installed at the bottom of the slide rail 32. The bases 31 can ensure the stability and support effect of the slide rail 32.

[0021] More specifically, rollers 34 are mounted on the moving platform 33, and the rollers 34 roll on the top of the slide rail 32. The rollers 34 facilitate the moving platform 33 to slide horizontally and linearly on the slide rail 32.

[0022] To be more specific, the translation device 36 adopts a hydraulic push rod, and the lifting device 37 adopts a hydraulic jack.

[0023] More specifically, a rotating device 41 is installed above the billet frame 2, and the driving short rotation of the rotating device 41 is connected to a lifting rod 42, and a plurality of equally spaced hooks 43 are arranged on the lifting rod 42 along its length direction. At least two groups of the rotating device 41 and the lifting rod 42 are installed on different billet frames 2. The rotating device 41 can adopt a reducer with a worm gear structure. The left end of the lifting rod 42 is connected to the output end of the rotating device 41. When on standby, the lifting rod 42 is relatively located below the upper surface of the billet frame 2. Five groups of hooks 43 are fixedly connected to the top of the lifting rod 42. The hook 43 has an "L"-shaped structure. A maximum of five special-shaped billets 10 can be stacked horizontally on the billet frame 2. When it is inconvenient to use the crane to suck them away at one time, the rotating device 41 is controlled to drive the lifting rod 42 to rotate, so that The lifting rod 42 abuts against the bottom of the five special-shaped steel billets 10. At this time, the hook portion 43 is relatively located on the side of the rotation axis of the lifting rod 42 that corresponds to the special-shaped steel billets 10. The lifting rod 42 continues to rotate so that the five groups of special-shaped steel billets 10 follow the rotation and tilt. Under the action of the special-shaped steel billets 10's own gravity, the special-shaped steel billets 10 slide into the corresponding hook portion 43. The hook portion 43 prevents the special-shaped steel billets 10 from escaping from the lifting rod 42 during rotation until the lifting rod 42 rotates to a vertical state. After that, the billet rack 2 can store subsequent new unqualified steel billets again.

[0024] More specifically, the lifting rod 42 is composed of a multi-section telescopic rod structure composed of a plurality of section rods 421 which are telescoped in sequence, the hook portion 43 is arranged on the section rod 421 , and a counterweight portion 44 is arranged at the end of the section rod 421 .

[0025] The working principle of the utility model is as follows: multiple groups of rollers 1 are arranged in a line with equal spacing, and the rollers 1 are used to transport the billets forward in a straight line, while multiple groups of billet racks 2 are arranged in a line, and the direction of the multiple groups of billet racks 2 is parallel to the arrangement direction of the multiple groups of rollers 1. It also includes an industrial visual laser sensor for detecting whether the billet is qualified. After the industrial visual laser sensor determines whether the billet is qualified, the billet rejection device is automatically started under the confirmation of the operator. The number of billet racks 2 can be designed according to the actual situation on site. It only needs to ensure that the height of the billet rack 2 is not affected by the steel moving machine during the transportation of hot billets after the special-shaped billets are placed. The lifting device 37 is composed of a 2.5-ton hydraulic jack and a translation device 36 is composed of a hydraulic push rod with a stroke of 2.5m. The two sets of rejection devices are connected by PLC. Dynamic control, synchronous lifting and retreat, and when on standby, the mobile platform 33 retreats to the bottom of the billet on the roller table 1 before entering the furnace, the lifting device 37 descends to the bottom, the lifting platform 35 is on the top, and the anti-slip portion 351 is less than the roller surface height of the roller table 1 before entering the furnace. If the system determines that the billet on the inspection stand is deformed, bent, or out of square, it is determined to be a special-shaped billet 10, then the lifting device 37 drives the lifting platform 35 to rise and lift the special-shaped billet 10 off the roller table 1, ensuring that the bottom of the special-shaped billet 10 can completely leave the roller table 1, and the translation device 36 is pushed by the hydraulic push rod to translate the mobile platform 35 to the top of the billet rack 2, and then the lifting device 37 descends, puts down the special-shaped billet 10 and returns to the standby position. A maximum of five special-shaped billets 10 can be stacked horizontally on the billet rack 2, which is convenient for driving at one time The system tracks and detects the stacking position and quantity information of the billets on the billet rack 2, which is used to feedback the control of the translation device 36. The anti-slip parts 351 on both sides of the top of the lifting platform 35 are used to prevent the special-shaped billets 10 from escaping from the top of the lifting platform 35 during the movement of the mobile platform 33 driven by the translation device 36. A set of sliding rails 32 of a lifting and dragging type rejection device 3 has two sets of parallel horizontal arrangements. Rollers 34 are installed at the bottom of the mobile platform 33. The mobile platform 33 moves by rolling on the sliding rails 32 through the rollers 34. At least two sets of rotating devices 41 and lifting rods 42 are installed on different billet racks 2. The rotating device 41 can adopt a reducer with a worm gear structure. The left end of the lifting rod 42 is connected to the output end of the rotating device 41. When on standby, the lifting rod 42 is relatively located on the billet rack 2. Below the surface, five groups of hook portions 43 are fixedly connected to the top of the lifting rod 42, and the hook portion 43 has an "L" shape. A maximum of five special-shaped billets 10 can be stacked horizontally on the billet rack 2. When it is inconvenient to use the crane to suck them away at one time, the rotating device 41 is controlled to drive the lifting rod 42 to rotate, so that the lifting rod 42 abuts against the bottom of the five special-shaped billets 10. At this time, the hook portions 43 are relatively located on the side of the corresponding special-shaped billets 10 relatively close to the rotation axis of the lifting rod 42. The lifting rod 42 continues to rotate so that the five groups of special-shaped billets 10 follow the rotation and tilt. Under the action of the special-shaped billet 10's own gravity, the special-shaped billet 10 slides into the corresponding hook portion 43, and the hook portion 43 prevents the special-shaped billet 10 from detaching from the lifting rod 42 during the rotation process until the lifting rod 42 rotates to a vertical state.Afterwards, the billet rack 2 can be used to store new unqualified billets. Due to the limited space in the factory, the length of the billet rack 2 cannot be extended indefinitely. Therefore, the number of special-shaped billets 10 stored in the billet rack 2 is limited. The lifting rod 42 is rotated to a vertical position to temporarily store the special-shaped billets 10 to achieve capacity expansion. After the special-shaped billets 10 temporarily stored on the lifting rod 42 in the vertical state are taken away, the rotating device 41 rotates to drive the lifting rod 42 to rotate to the standby position below the upper surface of the billet rack 2. The lifting rod 42 adopts a multi-section telescopic rod structure composed of multiple groups of section rods 421 that are stacked and telescoped in sequence. The hook part 43 is arranged on different section rods 421. The end of the multi-section telescopic rod is provided with a counterweight part 44. When the multi-section telescopic rod is rotated to the vertical state, due to the counterweight The weight of the weight block 44 and the shaped steel billet 1 pushes the multi-section telescopic rod to shorten, which is conducive to lowering the height of the five groups of shaped steel billets 1 for easy removal. The shortening of the multi-section telescopic rod is conducive to the reverse rotation of the rotating device 41 to the bottom of the billet frame 2. The shortened lifting rod 42 can avoid collision with the shaped steel billet 10 stored on the top of the billet frame 2 during the rotation process. The multi-section telescopic rod rotates to the bottom of the billet frame 2 and is tilted downward. At this time, under the action of the gravity of the counterweight block 44, the multi-section telescopic rod is pushed to extend to the limit position, so that the hook parts 43 of different section rods 421 correspond to the set positions of the billet frame 2 one by one, wherein the cross-sections of the steel billets and shaped steel billets 10 are rectangular, and the electrical equipment is connected to the external power supply through an external control switch.

[0026] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An automatic rejecting device for blanks entering a furnace, characterized in that: It comprises a roller conveyor (1) arranged in line for conveying steel billets and two or more sets of billet racks (2) arranged in line, characterized in that the arrangement direction of the billet racks (2) is parallel to the arrangement direction of the roller conveyor (1), and a lifting and flat-supporting type rejecting device (3) is arranged between the roller conveyor (1) and the billet racks (2); The lifting and flat-supporting rejection device (3) comprises a slide rail (32), a movable platform (33) is slidably connected above the slide rail (32), a lifting platform (35) is installed above the movable platform (33) via a lifting device (37), anti-slip portions (351) are arranged on the top of the lifting platform (35) along both side edges of the moving direction of the movable platform (33), and a translation device (36) is installed on one side of the movable platform (33).

2. The automatic rejecting device for blanks entering the furnace according to claim 1 is characterized in that: A plurality of bases (31) are installed at the bottom of the slide rail (32).

3. The automatic rejecting device for in-furnace blanks according to claim 1, characterized in that: A roller (34) is mounted on the moving platform (33), and the roller (34) rolls on the top of the slide rail (32).

4. The automatic rejecting device for incoming blanks according to claim 1 is characterized in that: The translation device (36) adopts a hydraulic push rod, and the lifting device (37) adopts a hydraulic jack.

5. The automatic rejecting device for in-furnace blanks according to claim 1 is characterized in that: A rotating device (41) is installed above the blank frame (2), and the driving short rotation of the rotating device (41) is connected to a lifting rod (42), and the lifting rod (42) is provided with a plurality of hook parts (43) arranged at equal intervals along its length direction.

6. The automatic rejecting device for in-furnace blanks according to claim 5, characterized in that: The lifting rod (42) is composed of a multi-section telescopic rod structure formed by a plurality of sections of rods (421) being telescoped in sequence, the hook portion (43) being arranged on the section rod (421), and a counterweight portion (44) being arranged at the end of the section rod (421).

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