Expanding sleeve for aluminum alloy rolling
By designing the diameter expansion sleeve for aluminum alloy rolling, and using a combined structure of single-piece screw, nut, deformed block and spring, the problem of mismatch in the inner diameter in the cold rolling mill is solved, the application of multiple inner diameters is achieved and manpower is saved, and production efficiency and safety are improved.
Patent Information
- Application Number
- CN202421651170.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In cold rolling mills at this stage, the inner diameter of the uncoiled side riser shaft of the rolling mill is 505mm, and the diameter of the coiling side riser shaft needs to be increased to 605mm. However, loose coiling problems are prone to occur during transportation and machine cutting, which cannot meet production needs, and the existing steel sleeves cannot meet the needs of different inner diameters, which has a high occupancy rate.
A diameter-expanded sleeve for aluminum alloy rolling is designed, including the first cylinder and the second cylinder. The side walls of both are uniformly arranged, and a single-piece screw and nut are installed inside. Combined with the deformation block and the spring, the 605mm inner diameter dimension compensation and fixed tightening are achieved.
It realizes the application of multiple inner diameter installations, saves manpower, reduces processing costs, improves the structural integrity and strength of the expanded diameter sleeve, avoids the problems of loose and slipping of the core, and improves work efficiency and safety.
Smart Images
Figure CN222919351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum alloy rolling devices, and specifically relates to an expanding diameter sleeve for aluminum alloy rolling. Background Art
[0002] In the aluminum processing industry, it is an essential equipment for cold rolling mills. At present, to meet the subsequent production requirements, the expanding shaft on the uncoiling side of the rolling mill is usually 505 mm, while the expanding shaft on the coiling side is increased in diameter to 605 mm by using a segmental plate. Secondly, during transportation, the coil core often has the problem of loose coiling, which can no longer meet the requirement of being cut after being put on the machine. The above two problems will result in the situation of unable to produce or frequently changing the inner diameter. At present, all cold rolling mills use steel sleeves with an inner diameter of 505 mm, and they cannot be taken out after being taken off the machine, occupying a relatively high sleeve rate.
[0003] At present, there is a need for an expanding diameter sleeve that can meet different inner diameter requirements. In the industry, rubber material non-full-size sleeves are used. Although it reduces the labor intensity of workers, it is not the most effective method. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an expanding diameter sleeve for aluminum alloy rolling, which has a more reasonable structure design, is convenient to operate, has a low processing and manufacturing cost, is suitable for installation with various inner diameters, has a wide application range, and saves manpower.
[0005] An expanding diameter sleeve for aluminum alloy rolling of the utility model comprises an expanding diameter sleeve cylinder body 1. The expanding diameter sleeve cylinder body 1 includes a first cylinder body 101 and a second cylinder body 102. A plurality of empty spaces 7 are evenly arranged on the side walls of the first cylinder body 101 and the second cylinder body 102. The empty spaces 7 are symmetrically arranged along the midline of the expanding diameter sleeve cylinder body 1. An expanding diameter sleeve single-piece screw 8 is installed in the empty space 7. The expanding diameter sleeve single-piece screw 8 penetrates through the wall surfaces of the first cylinder body 101 and the second cylinder body 102. Expanding diameter sleeve single-piece nuts 5 are arranged at both ends of the expanding diameter sleeve single-piece screw 8.
[0006] Deformation block expanding blocks 3 are respectively embedded on the surfaces and bottoms of the first cylinder body 101 and the second cylinder body 102. Deformation block cover plates 4 are respectively fixedly connected to both sides of the deformation block expanding blocks 3. Deformation block springs 2 are fixedly connected to the deformation block cover plates 4.
[0007] The arranged deformation block expanding blocks 3 utilize the self-elastic force of the deformation block springs 2 in their grooves. When not in contact with the rolling mill expanding shaft, the deformation block expanding blocks 3 retract without being stressed, making it easier to sleeve the aluminum alloy coil core onto the expanding diameter sleeve cylinder body 1. The deformation block expanding blocks 3 can provide the tension in the circumferential vertical direction to tightly hold the coil core. The expansion and contraction in the circumferential direction of the deformation blocks 3 can be used to compensate for the inner diameter size of 605 mm, and the fixed tension production of the coil with an inner diameter of 605 mm can be realized.
[0008] Before rolling production, the deformation expanding block 3 can be placed to cover the side deformation block cover plates 4 and then fastened with countersunk head bolts. After the assembled first cylinder body 101 and the second cylinder body 102 are overlapped, the single-piece screw 8 of the expanding sleeve and the single-piece bolt 5 of the expanding sleeve cooperate with each other to make the first cylinder body 101 and the second cylinder body 102 overlap and be fixed. The first cylinder body 101 and the second cylinder body 102 can be combined to form a complete expanding sleeve cylinder body 1. After this expanding sleeve cylinder body 1 is inserted into the uncoiling expanding shaft of the rolling mill, the rolling mill tension is transmitted to the expanding sleeve cylinder body 1. Through the deformation of the deformation expanding block 3 and the deformation block spring 2, the inner diameter of the coiling core is tightened.
[0009] A plurality of empty spaces 7 are evenly arranged on the side walls of the first cylinder body 101 and the second cylinder body 102. The empty spaces 7 are symmetrically arranged along the center line of the cylinder body 1. The single-piece screw 8 of the expanding sleeve is installed in the empty space 7. The single-piece screw 8 of the expanding sleeve penetrates through the wall surfaces of the first cylinder body 101 and the second cylinder body 102. The two ends of the single-piece screw 8 of the expanding sleeve are provided with single-piece nuts 5 of the expanding sleeve. After the assembled first cylinder body 101 and the second cylinder body 102 are overlapped, the single-piece screw 8 of the expanding sleeve and the single-piece bolt 5 of the expanding sleeve cooperate with each other to make the first cylinder body 101 and the second cylinder body 102 overlap and be fixed. The fixing is firm, safe and reliable, and the safety performance of the whole device is improved.
[0010] A stress spring 9 is installed on the wall surface of the single-piece screw 8 of the expanding sleeve in contact with the empty space 7.
[0011] The set stress spring 9 enables the expanding sleeve to keep the outer diameter ≤ 495 mm when not stressed to meet the insertion of the coiling core; and this structure provides horizontal tension.
[0012] Slots 6 are arranged on the edges of the first cylinder body 101 and the second cylinder body 102.
[0013] The set slots 6 can meet different types of cold rolling mill scrolls. The expanding shaft type scroll can use this expanding sleeve for expanding operation. When the expanding operation is not used, this sleeve can meet the use of a conventional chuck shaft. The slots 6 are used for positioning to prevent slipping. At this time, the expanding sleeve cylinder body 1 is restored to an ordinary sleeve.
[0014] The beneficial effects of the present utility model are as follows:
[0015] 1) The set deformation block expanding block 3, by using the self-elastic force of the deformation block spring 2 in its groove, when not in contact with the rolling mill expanding shaft, the deformation block expanding block 3 retracts without stress, making it easier to insert the aluminum alloy coiling core into the expanding sleeve cylinder body 1. The deformation block expanding block 3 can provide circumferential vertical tension to tightly hold the coiling core; the expansion and contraction in the circumferential direction of the deformation block is used to compensate for the inner diameter size of 605 mm, and the fixed tension production of the 605 mm inner diameter coiled material is realized.
[0016] Before rolling production, the deformation expansion block 3 can be placed to cover the deformation block cover plates 4 on both sides and then fastened with countersunk bolts. After the assembled first cylinder body 101 and the second cylinder body 102 are overlapped, the single-piece screw 8 of the diameter-expanding sleeve and the diameter-expanding sleeve single-piece bolt 5 cooperate with each other to make the first cylinder body 101 and the second cylinder body 102 overlap and be fixed. The first cylinder body 101 and the second cylinder body 102 can be combined to form a complete diameter-expanding sleeve cylinder body 1. After this diameter-expanding sleeve cylinder body 1 is inserted into the uncoiling tension shaft of the rolling mill, the tension is transmitted to the diameter-expanding sleeve cylinder body 1 through the rolling mill, and through the deformation of the deformation expansion block 3 and the deformation block spring 2, the inner diameter of the coiling core is tightened.
[0017] 2) The force-bearing spring 9 is set so that the outer diameter of the diameter-expanding sleeve remains ≤ 495 mm when not under force to meet the insertion of the coiling core; and this structure provides horizontal tension.
[0018] 3) The slotted groove 6 is set, which can meet different types of cold rolling mill scrolls. The expanding shaft type scroll can use this diameter-expanding sleeve for diameter-expanding operation. When the diameter-expanding operation is not used, this sleeve can be used for the conventional chuck shaft. The slotted groove 6 is used for positioning to prevent slipping. At this time, the diameter-expanding sleeve cylinder body 1 is restored to an ordinary sleeve.
[0019] 4) The structure of this device is more reasonable, the operation is convenient, the processing and manufacturing cost is low, it is suitable for installation with various inner diameters, has a wide range of applications, and saves manpower. The diameter-expanding method adopted is achieved by the combined action of the deformation block expansion block 3 and the diameter-expanding sleeve single-piece nut 5. The diameter-expanding sleeve single-piece nut 5 meets the large-stroke diameter-expanding function, while the deformation block expansion block 3 is used to make up for the contact tension in the vertical direction after diameter expansion. Through this method, the overall structural integrity and strength of the diameter-expanding sleeve can be effectively improved; making full use of its own expansion and contraction movement to meet the rolling of different inner diameter coils in the current cold rolling mill industry; using the ability of two-way expansion and contraction to fully contact the surface of the coiling core, avoiding quality and safety problems caused by slipping and other issues; while improving work efficiency, avoiding cross-operation between operators and the overhead crane workshop, thus avoiding safety accidents. Description of the Drawings
[0020] Figure 1 It is a structural schematic diagram of the present utility model.
[0021] In the figure: diameter-expanding sleeve cylinder body 1, first cylinder body 101, second cylinder body 102, deformation block spring 2, deformation block expansion block 3, deformation block cover plate 4, diameter-expanding sleeve single-piece nut 5, slotted groove 6, empty space 7, diameter-expanding sleeve single-piece screw 8, force-bearing spring 9. Detailed Embodiment
[0022] Embodiment 1.
[0023] The following will further explain the present utility model in conjunction with the attached Figure 1 drawings.
[0024] The utility model includes an expanded-diameter sleeve cylinder body 1, a first cylinder body 101, a second cylinder body 102, a deformation block spring 2, a deformation block expanding block 3, a deformation block cover plate 4, an expanded-diameter sleeve single-piece nut 5, a slot 6, a gap 7, and an expanded-diameter sleeve single-piece screw 8. The specific structure includes the expanded-diameter sleeve cylinder body 1, which consists of the first cylinder body 101 and the second cylinder body 102. A plurality of gaps 7 are evenly arranged on the side walls of the first cylinder body 101 and the second cylinder body 102, and the gaps 7 are symmetrically arranged along the midline of the expanded-diameter sleeve cylinder body 1. An expanded-diameter sleeve single-piece screw 8 is installed in the gap 7, and the expanded-diameter sleeve single-piece screw 8 penetrates through the wall surfaces of the first cylinder body 101 and the second cylinder body 102. Expanded-diameter sleeve single-piece nuts 5 are arranged at both ends of the expanded-diameter sleeve single-piece screw 8.
[0025] The surfaces and bottoms of the first cylinder body 101 and the second cylinder body 102 are respectively embedded with deformation block expanding blocks 3. Deformation block cover plates 4 are fixedly connected to both sides of the deformation block expanding blocks 3, and a deformation block spring 2 is fixedly connected to the deformation block cover plates 4.
[0026] Slots 6 are arranged at the edges of the first cylinder body 101 and the second cylinder body 102.
[0027] The number of the gaps 7 is sixteen. Two expanded-diameter sleeve single-piece screws 8 and expanded-diameter sleeve single-piece nuts 5 are arranged in each gap 7, and the number of the expanded-diameter sleeve single-piece screws 8 and the expanded-diameter sleeve single-piece nuts 5 is thirty-two.
[0028] The expanded-diameter sleeve cylinder body 1, the deformation block expanding blocks 3, and the deformation block cover plates 4 are made of cast iron.
[0029] The inner side of the deformation block expanding block 3 is a φ495mm arc, which is consistent with the inner arc of the expanded-diameter sleeve cylinder body 1, preventing jamming after being brought into the reel and causing damage to the expanded-diameter sleeve cylinder body 1. And when this function is not used, the circumference and the center of the deformation block are always the same, and no stress concentration point will be formed on the coil, thus avoiding irreversible product quality defects.
[0030] The deformation block spring 2 is made of high-carbon steel spring to achieve the function of free expansion and contraction and realize the expansion and contraction movement.
[0031] During use: Before rolling production, the deformation expansion block 3 can be placed to cover the two-sided deformation block cover plate 4 and then fastened with countersunk bolts. After the assembled first cylinder body 101 and the second cylinder body 102 are overlapped, the single-piece screw 8 of the diameter-expanding sleeve and the single-piece bolt 5 of the diameter-expanding sleeve cooperate with each other to make the first cylinder body 101 and the second cylinder body 102 overlap and fix. By the cooperation of the single-piece screw 8 of the diameter-expanding sleeve and the single-piece bolt 5 of the diameter-expanding sleeve, the first cylinder body 101 and the second cylinder body 102 can be combined to form a complete diameter-expanding sleeve cylinder body 1. After this diameter-expanding sleeve cylinder body 1 is inserted into the uncoiling tension shaft of the rolling mill, the tension of the rolling mill is transmitted to the diameter-expanding sleeve cylinder body 1. Through the deformation of the deformation expansion block 3 and the deformation block spring 2, the inner diameter of the coiled core is tightened.
[0032] Embodiment 2.
[0033] The diameter-expanding sleeve cylinder body 1, the first cylinder body 101, the second cylinder body 102, the deformation block spring 2, the deformation block expansion block 3, the deformation block cover plate 4, the single-piece nut 5 of the diameter-expanding sleeve, the slot 6, the empty space 7, the single-piece screw 8 of the diameter-expanding sleeve, and the stress spring 9 of the present utility model. The specific structure includes a diameter-expanding sleeve cylinder body 1, and the diameter-expanding sleeve cylinder body 1 includes a first cylinder body 101 and a second cylinder body 102. A plurality of empty spaces 7 are evenly arranged on the side walls of the first cylinder body 101 and the second cylinder body 102, and the empty spaces 7 are symmetrically arranged along the center line of the diameter-expanding sleeve cylinder body 1; an empty space 7 is internally provided with a single-piece screw 8 of the diameter-expanding sleeve, and the single-piece screw 8 of the diameter-expanding sleeve penetrates through the wall surfaces of the first cylinder body 101 and the second cylinder body 102, and single-piece nuts 5 of the diameter-expanding sleeve are arranged at both ends of the single-piece screw 8 of the diameter-expanding sleeve.
[0034] The surface and the bottom surface of the first cylinder body 101 and the second cylinder body 102 are respectively embedded with deformation block expansion blocks 3. Deformation block cover plates 4 are respectively fixedly connected to both sides of the deformation block expansion blocks 3, and deformation block springs 2 are fixedly connected to the deformation block cover plates 4.
[0035] A stress spring 9 is installed on the wall surface of the single-piece screw 8 of the diameter-expanding sleeve that contacts the empty space 7.
[0036] Slots 6 are arranged at the edges of the first cylinder body 101 and the second cylinder body 102.
[0037] The number of the empty spaces 7 is sixteen. Two single-piece screws 8 of the diameter-expanding sleeve and single-piece nuts 5 of the diameter-expanding sleeve are arranged in each empty space 7, and the number of the single-piece screws 8 of the diameter-expanding sleeve and the single-piece nuts 5 of the diameter-expanding sleeve is thirty-two.
[0038] The diameter-expanding sleeve cylinder body 1, the deformation block expansion block 3, and the deformation block cover plate 4 are made of cast iron.
[0039] The inner side of the deformable block expanding block 3 is a φ495mm arc, which is consistent with the inner arc of the diameter-expanding sleeve cylinder body 1. Its function is to prevent jamming after being brought into the reel, which may cause damage to the diameter-expanding sleeve cylinder body 1. And when this function is not used, the circumference and center of the deformable block will not form irreversible product quality defects due to stress concentration points on the coil material.
[0040] The deformable block spring 2 is made of high-carbon steel spring to achieve the function of free expansion and contraction and realize the expansion and contraction movement.
[0041] Usage method: Before rolling production, the deformable expanding block 3 can be placed and the two-sided deformable block cover plates 4 can be covered and fastened with countersunk bolts. After the assembled first cylinder body 101 and the second cylinder body 102 are overlapped, the first cylinder body 101 and the second cylinder body 102 can be overlapped and fixed by the cooperation of the diameter-expanding sleeve single-piece screw 8 and the diameter-expanding sleeve single-piece bolt 5. By the cooperation of the diameter-expanding sleeve single-piece screw 8 and the diameter-expanding sleeve single-piece bolt 5, the first cylinder body 101 and the second cylinder body 102 can be combined to form a complete diameter-expanding sleeve cylinder body 1 assembly. After this diameter-expanding sleeve cylinder body 1 is inserted into the uncoiling tension shaft of the rolling mill, the rolling mill tension is transmitted to the diameter-expanding sleeve cylinder body 1, and through the deformation of the deformable expanding block 3 and the deformable block spring 2, the inner diameter of the coil core is tightened.
[0042] The provided stress spring 9 enables the diameter-expanding sleeve to maintain an outer diameter ≤495mm when not under force to meet the insertion of the coil core; and this structure provides horizontal tension.
Claims
1. An expanding sleeve for aluminum alloy rolling, comprising an expanding sleeve body (1), characterized in that: The expanding sleeve barrel (1) comprises a first barrel (101) and a second barrel (102). The side walls of the first barrel (101) and the second barrel (102) are evenly provided with a plurality of gaps (7), and the gaps (7) are symmetrically arranged along the center line of the expanding sleeve barrel (1). An expanding sleeve single-piece screw (8) is installed in the gaps (7), and the expanding sleeve single-piece screw (8) passes through the wall surfaces of the first barrel (101) and the second barrel (102), and expanding sleeve single-piece nuts (5) are arranged at both ends of the expanding sleeve single-piece screw (8).
2. The expansion sleeve for aluminum alloy rolling according to claim 1, characterized in that: The surfaces and bottom surfaces of the first cylinder (101) and the second cylinder (102) are respectively embedded with a deformation block expansion block (3), both sides of the deformation block expansion block (3) are respectively fixedly connected with a deformation block cover plate (4), and the deformation block cover plate (4) is fixedly connected with a deformation block spring (2).
3. The expansion sleeve for aluminum alloy rolling according to claim 2, characterized in that: A force-bearing spring (9) is installed on the wall surface of the expanding sleeve single-piece screw (8) that contacts the idler (7).
4. The expanding sleeve for aluminum alloy rolling according to claim 3, characterized in that: The edges of the first cylinder (101) and the second cylinder (102) are provided with grooves (6).