Multi-coiling-diameter uncoiling machine coiling block

Abstract

The utility model discloses a multi-coiling-diameter uncoiler coiling block which comprises a rotating oil cylinder and a pull rod which are connected through threads, the pull rod is arranged in an inner hole of a hollow main shaft in an axial movement mode, the pull rod and a wedge-shaped sleeve are connected into a whole through an end plate, and the wedge-shaped sleeve is arranged on the outer diameter of the hollow main shaft in an axial sliding mode. A plurality of wedge-shaped sleeve inclined planes are arranged on the wedge-shaped sleeve, dovetail grooves are formed in the wedge-shaped sleeve inclined planes, dovetail hook heads are connected in the dovetail grooves, one ends of the dovetail hook heads are arranged on fan-shaped block inclined planes, and the fan-shaped block is in sliding connection with the wedge-shaped sleeve through the dovetail hook heads; through the optimized and improved design of the product, the inclined plane of the wedge-shaped sleeve is provided with a larger inclined plane angle, two winding drums are combined into one winding drum, the structural characteristics of parts are simple, the diameter increasing plate is additionally arranged, three winding drums are combined into one winding drum, and the production cost is reduced. And therefore, the beneficial technical effects of widening the application range, saving the equipment cost, improving the operation convenience and improving the production efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold strip uncoiler technical field, concretely related to a multi-diameter uncoiler drum. BACKGROUND

[0002] The uncoiler drum is the equipment that uncoils the steel coil into the metal strip through the high speed rotation of the body, mainly including the hollow spindle, the sector block, the wedge sleeve, the pull rod, the rotary oil cylinder. The drum is powered by the rotary oil cylinder, drives the pull rod to move axially, is converted into the radial movement by the wedge sleeve, realizes the expansion, the reduction of the drum. After the winding of the steel coil, the uncoiler drum mainly expands the steel coil, opens the head of the strip and realizes the uncoiling, and then carries out the processes such as flattening, leveling, shearing to the strip.

[0003] The current finished product steel coil commonly has the nominal inside diameter of phi 508mm, phi 610mm and phi 762mm, but the existing uncoiler drum needs to be designed separately for each steel coil, and there are defects and deficiencies such as high cost, single purpose and low production efficiency. CONTENT OF THE UTILITY MODEL

[0004] In view of the above technical problems in the prior art, the utility model provides a multi-diameter uncoiler drum, which can uncoil the steel coil with the nominal inside diameter of phi 508mm, phi 610mm and phi 762mm simultaneously, and can overcome the above deficiencies of the prior art.

[0005] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0006] A multi-diameter uncoiler drum;

[0007] The multi-diameter uncoiler drum comprises a rotary oil cylinder and a pull rod connected through threads, the pull rod moves axially and is arranged in the inner hole of the hollow spindle, the pull rod and the wedge sleeve are connected into a whole through an end plate, the wedge sleeve moves axially and is arranged on the outer diameter of the hollow spindle, a plurality of wedge sleeve inclined surfaces are arranged on the wedge sleeve, a dovetail groove is formed in the wedge sleeve inclined surface, a dovetail hook is connected in the dovetail groove, one end of the dovetail hook is arranged on the inclined surface of the sector block, and the sector block and the wedge sleeve are connected through the dovetail hook.

[0008] Further, a groove and a threaded hole are formed in the inclined surface of the sector block, and the dovetail hook is arranged on the inclined surface of the sector block through a second bolt and the threaded hole.

[0009] Further, the hollow spindle is provided with a first limiting plate and a second limiting plate, and the two ends of the sector block are limited and move axially by the first limiting plate and the second limiting plate.

[0010] Further, the fan-shaped block is provided with a diameter increasing plate for realizing diameter increasing function through the first bolt.

[0011] Further, the fan-shaped block and the diameter increasing plate are both three in number.

[0012] Further, the angle of the wedge-shaped sleeve inclined surface of the wedge-shaped sleeve is same as the angle of the inclined surface of the fan-shaped block, and the angle of the wedge-shaped sleeve inclined surface of the wedge-shaped sleeve and the angle of the inclined surface of the fan-shaped block are both greater than or equal to twenty-five degrees and less than or equal to fifty degrees.

[0013] Further, the outer circle of the fan-shaped block is provided with a plurality of manual oil supply devices for providing dry oil lubrication for the wedge-shaped sleeve inclined surface and the inclined surface of the fan-shaped block.

[0014] Further, the manual oil supply device is an oil cup arranged on the outer circle of the fan-shaped block.

[0015] Further, the bottom of the dovetail groove on the wedge-shaped sleeve inclined surface is provided with a corresponding width communication groove, and the tail of the communication groove is provided with a groove tail fillet.

[0016] Further, the wedge-shaped sleeve is an integral structure, and the wedge-shaped sleeve is made of cast steel ZG42CrMo.

[0017] The beneficial effects of the utility model are as follows: through the optimization and improvement design of the utility model product, the wedge-shaped sleeve inclined surface is provided with a larger inclined surface angle, two reels are combined into one, the part structure feature is simple, the diameter increasing plate is further added, three reels are combined into one, and the beneficial technical effects of improving the application range, saving the equipment cost, improving the operation convenience and improving the production efficiency are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a main sectional view of the multiple-diameter unwinding machine reel in the reduced state according to the utility model embodiment;

[0020] Figure 2 It is a main sectional view of the multiple-diameter unwinding machine reel according to the utility model embodiment; Figure 1 The detail view of the C position;

[0021] Figure 3is the expanded state main sectional view of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model,

[0022] Figure 4 is the of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model, Figure 3 Detail view of D in the middle,

[0023] Figure 5 is the of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model, Figure 1 Sectional view of A-A line in the middle small circle state,

[0024] Figure 6 is the of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model, Figure 2 Sectional view of B-B line in the middle big circle state with diameter increasing plate,

[0025] Figure 7 is the of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model, Figure 2 Sectional view of B-B line in the middle big circle state without diameter increasing plate,

[0026] Figure 8 is the perspective view of the wedge-shaped sleeve of the multi-coil-diameter uncoiler drum according to the embodiment of the utility model,

[0027] In the figure: 1, rotary oil cylinder; 2, pull rod; 3, hollow main shaft; 4, sector block; 5, dovetail hook; 6, second bolt; 7, wedge-shaped sleeve; 701, wedge-shaped sleeve bevel; 702, communication groove; 703, groove tail fillet; 704, dovetail groove; 8, diameter increasing plate; 9, end plate; 10, oil cup; 11, first bolt; 12, first limiting plate; 13, second limiting plate. Specific implementation

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0029] It should be understood that, in the description of the embodiments of the present application, the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified.

[0030] As Figures 1-6 shown, according to the multi-diameter opening mill reel of the present application, the rotating oil cylinder 1 and the pull rod 2 are connected by threads, the pull rod 2 is axially movable and arranged in the inner hole of the hollow main shaft 3, the pull rod 2 is integrally connected with the wedge-shaped sleeve 7 through the end plate 9, the wedge-shaped sleeve 7 is axially slidable and arranged on the outer diameter of the hollow main shaft 3, a plurality of wedge-shaped sleeve inclined surfaces 701 are arranged on the wedge-shaped sleeve 7, dovetail grooves 704 are formed on the wedge-shaped sleeve inclined surfaces 701, dovetail hooks 5 are connected in the dovetail grooves 704, one end of the dovetail hook 5 is arranged on the inclined surface of the sector block 4, and the sector block 4 is slidably connected with the wedge-shaped sleeve 7 through the dovetail hook 5.

[0031] According to the multi-diameter opening mill reel of the present application, in a specific embodiment, grooves and threaded holes are formed on the inclined surface of the sector block 4, and the dovetail hook 5 is arranged on the inclined surface of the sector block 4 through the second bolt 6 and the threaded hole.

[0032] According to the multi-diameter opening mill reel of the present application, in a specific embodiment, the hollow main shaft 3 is provided with a first limiting plate 12 and a second limiting plate 13, and the two ends of the sector block 4 are limited by the first limiting plate 12 and the second limiting plate 13 and axially movable.

[0033] According to the multi-diameter opening mill reel of the present application, in a specific embodiment, the sector block 4 is provided with a diameter increasing plate 8 for realizing the diameter increasing function through the first bolt 11.

[0034] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the number of the fan-shaped blocks 4 and the number of the diameter increasing plates 8 are both three.

[0035] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the angle of the wedge-shaped sleeve inclined surface 701 of the wedge-shaped sleeve 7 is the same as the inclined surface angle of the fan-shaped block 4, and the angle of the wedge-shaped sleeve inclined surface 701 of the wedge-shaped sleeve 7 and the inclined surface angle of the fan-shaped block 4 are both greater than or equal to twenty-five degrees and less than or equal to fifty degrees; the wedge-shaped sleeve 7 and the fan-shaped block 4 are provided with a larger inclined surface angle to increase the expansion and contraction range of the drum; the self-locking angle of the drum is inversely proportional to the friction coefficient of the inclined surface, so as to avoid self-locking, and the larger the inclined surface angle of the wedge-shaped sleeve 7 and the fan-shaped block 4, the smaller the required friction coefficient. Therefore, the smoothness of the inclined surface of the wedge-shaped sleeve 7 and the inclined surface of the fan-shaped block 4 is improved, the full dry oil lubrication of the sliding surface is required, the friction coefficient is reduced, and self-locking is prevented.

[0036] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the outer circle of the fan-shaped block 4 is provided with a plurality of manual oil supply devices for providing dry oil lubrication for the wedge-shaped sleeve inclined surface 701 and the inclined surface of the fan-shaped block 4.

[0037] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the manual oil supply device is a plurality of oil cups 10 arranged on the outer circle of the fan-shaped block 4.

[0038] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the dovetail groove 704 bottom of the wedge-shaped sleeve inclined surface 701 is provided with a corresponding width communication groove 702, and the tail of the communication groove 702 is provided with a groove tail fillet 703; due to the increase of the radial expansion and contraction range, the space is compact, and the bottom plane of the wedge-shaped sleeve inclined surface of the wedge-shaped sleeve 7 and the top of the inclined surface of the fan-shaped block 4 will interfere when the circle is small. Therefore, the wedge-shaped sleeve inclined surface bottom of the wedge-shaped sleeve 7 is provided with a communication groove 702, and the tail of the communication groove 702 is provided with a groove tail fillet 703 to avoid interference and smooth operation.

[0039] According to the multi-roll diameter uncoiler drum, in a specific embodiment, the wedge-shaped sleeve 7 is an integral structure, the wedge-shaped sleeve 7 is arranged as an integral structure, the position accuracy of each group of inclined surfaces can be effectively improved, and the assembly accuracy of the uncoiler drum is improved; the wedge-shaped sleeve 7 is made of cast steel ZG42CrMo to ensure that the strength of the wedge-shaped sleeve 7 meets the design requirements.

[0040] In order to facilitate the understanding of the above technical scheme of the utility model, the above technical scheme of the utility model will be described in detail through specific use mode.

[0041] In practical use, according to the multi-diameter uncoiler drum described in this utility model, the working principle of this utility model for uncoiling steel coils with a nominal inner diameter of φ508mm is as follows: Figure 1 As shown, without assembling the diameter-increasing plate 8, the rotating cylinder 1 provides power to extend to the right, the pull rod 2 drives the wedge sleeve 7 to move axially to the right, and the fan-shaped block 4 retracts inward along the wedge sleeve inclined surface 701 of the wedge sleeve 7 under the action of the dovetail hook 5, the drum shrinks to φ485.5mm, and the steel coil with a nominal inner diameter of φ508mm is wound up.

[0042] like Figure 2 The rotary cylinder 1 provided a reaction force to retract to the left, and the pull rod 2 drove the wedge sleeve 7 to move axially to the left. Under the action of the dovetail hook 5, the fan-shaped block 4 expanded outward along the wedge sleeve inclined surface 701 of the wedge sleeve 7, the drum expanded, tightened the steel coil with a nominal inner diameter of φ508mm, and achieved uncoiling.

[0043] The working principle of this utility model for uncoiling steel coils with a nominal inner diameter of φ610mm is as follows: Through the above-mentioned drum expansion and contraction method, the drum of this utility model is reduced to φ485.5mm, which can accommodate steel coils with a nominal inner diameter of φ610mm. After the drum expands to tighten the steel coil, the steel coil with a nominal inner diameter of φ610mm is uncoiled.

[0044] The working principle of this utility model for steel coils with a nominal inner diameter of φ762mm is as follows: Figure 1 As shown, the diameter-increasing plate 8 is assembled. Through the above-mentioned drum expansion and contraction method, the uncoiler drum of this utility model is reduced to φ620.5mm, which can accommodate steel coils with a nominal inner diameter of φ762mm. After the drum expands to tighten the steel coil, the steel coil with a nominal inner diameter of φ762mm is uncoiled.

[0045] In summary, by utilizing the above-mentioned technical solution of this utility model and through the optimized and improved design of the product of this utility model, the wedge sleeve is made to have a larger inclined angle, which combines two drums into one, resulting in a simple part structure. Furthermore, by adding a diameter-increasing plate, three drums are combined into one, thereby achieving the beneficial technical effects of expanding the scope of application, saving equipment costs, improving operational convenience, and increasing production efficiency.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-volumed opening mill reel drum, characterized by, It includes a rotating oil cylinder (1) and a pull rod (2) connected by threads, the pull rod (2) is axially movably arranged in the inner hole of a hollow spindle (3), the pull rod (2) is integrally connected with a wedge sleeve (7) through an end plate (9), the wedge sleeve (7) is axially slidably arranged on the outer diameter of the hollow spindle (3), a plurality of wedge sleeve inclined surfaces (701) are arranged on the wedge sleeve (7), dovetail grooves (704) are arranged on the wedge sleeve inclined surfaces (701), dovetail hooks (5) are connected in the dovetail grooves (704), one end of the dovetail hooks (5) is arranged on the inclined surface of a sector block (4), the sector block (4) and the wedge sleeve (7) are slidably connected through the dovetail hooks (5).

2. A multiple-vane unwinder reel according to claim 1, characterized in that The inclined surface of the sector block (4) is provided with a groove and a threaded hole, and the dovetail hooks (5) are arranged on the inclined surface of the sector block (4) through the second bolt (6) and the threaded hole.

3. A multiple diameter coil unwinder reel according to claim 1, characterized in that, The hollow spindle (3) is provided with a first limiting plate (12) and a second limiting plate (13), and the two ends of the sector block (4) are limited and axially moved by the first limiting plate (12) and the second limiting plate (13).

4. A multiple diameter coil unwinder reel according to claim 1, characterized in that, The sector block (4) is provided with a diameter increasing plate (8) for realizing the diameter increasing function through a first bolt (11).

5. A multiple-vane unwinder reel according to claim 4, characterized in that The number of the sector block (4) and the diameter increasing plate (8) is three.

6. A multiple diameter coil unwinder reel according to claim 1, wherein, The angle of the wedge sleeve inclined surface (701) of the wedge sleeve (7) is the same as the angle of the inclined surface of the sector block (4), and the angle of the wedge sleeve inclined surface (701) of the wedge sleeve (7) and the angle of the inclined surface of the sector block (4) are greater than or equal to twenty-five degrees and less than or equal to fifty degrees.

7. A multiple diameter coil unwinder reel according to claim 1, wherein, The outer circle of the sector block (4) is provided with a plurality of manual oil supply devices for providing dry oil lubrication for the wedge sleeve inclined surface (701) and the inclined surface of the sector block (4).

8. A multiple-vane unwinder reel according to claim 7, characterized in that The manual oil supply device is a plurality of oil cups (10) arranged on the outer circle of the sector block (4).

9. A multiple diameter coil unwinder reel according to claim 1, wherein, The bottom of the dovetail groove (704) on the wedge sleeve inclined surface (701) is provided with a corresponding width communication groove (702), and the tail of the communication groove (702) is provided with a groove tail fillet (703).

10. A multiple diameter coil unwinder reel according to claim 1, characterized in that, The wedge sleeve (7) is an integral structure, and the wedge sleeve (7) is made of cast steel ZG42CrMo.

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