阅读说明：本技术 一种结构简单的弹性套筒及其更换方法 (Elastic sleeve with simple structure and replacement method thereof ) 是由 杨丰产 吴世祥 卢茜莉 朱昌平 李美杰 岳杰 于 2019-12-17 设计创作，主要内容包括：本发明公开了一种结构简单的弹性套筒及其更换方法。本发明弹性套筒包括若干块增径板、若干套连接结构；增径板均为扇环形,相邻的两块增径板之间通过若干套连接结构形成一个圆柱形套筒；增径板扇环形两侧面沿长度方向上加工有内侧槽,形成上部的齿边和端面；齿边沿长度方向加工有多个间隔设置的凹槽和凸块；端面上沿长度方向设置有多个导向孔；每套连接结构均包括导向螺栓、导向螺母、两个弹簧,导向螺栓、导向螺母分别置于相配对的导向孔内,两个弹簧分别设置在相配对的导向孔内且均套在导向螺栓的螺杆上,导向螺母旋合在导向螺栓上。本发明弹性套筒在能实现卷筒增径功能的前提下,整体结构简单,大大降低了加工及装配难度,可显著降低制造成本。(The invention discloses an elastic sleeve with a simple structure and a replacement method thereof. The elastic sleeve comprises a plurality of diameter increasing plates and a plurality of sleeve connecting structures; the diameter increasing plates are all in fan ring shapes, and a cylindrical sleeve is formed between every two adjacent diameter increasing plates through a plurality of sleeve connecting structures; inner side grooves are processed on the two annular side surfaces of the diameter-increasing plate fan along the length direction to form a tooth edge and an end surface on the upper part; a plurality of grooves and lugs which are arranged at intervals are processed along the length direction of the tooth edge; a plurality of guide holes are formed in the end face along the length direction; each set of connecting structure comprises a guide bolt, a guide nut and two springs, the guide bolt and the guide nut are respectively arranged in the matched guide holes, the two springs are respectively arranged in the matched guide holes and are respectively sleeved on the screw rods of the guide bolt, and the guide nut is screwed on the guide bolt. The elastic sleeve has a simple integral structure on the premise of realizing the diameter increasing function of the winding drum, greatly reduces the processing and assembling difficulty, and can obviously reduce the manufacturing cost.)

1. The utility model provides a simple structure's elastic sleeve, characterized by: the diameter-increasing plate comprises a plurality of diameter-increasing plates (1) and a plurality of sets of connecting structures; the diameter increasing plates (1) are all in a sector ring shape, and a cylindrical sleeve is formed between every two adjacent diameter increasing plates through a plurality of sleeve connecting structures; inner side grooves are processed on the two sides of the fan-shaped ring of the diameter-increasing plate (1) along the length direction to form a tooth edge (11) and an end face (21) on the upper part; the tooth edge (11) is provided with a plurality of grooves (22) and lugs (23) which are arranged at intervals along the length direction to form the tooth edge (11) which is arranged in a concave-convex staggered manner, and the lugs (23) of two adjacent diameter increasing plates extend into the corresponding grooves (22); a plurality of guide holes (10) are formed in the end face (21) along the length direction, the guide holes (10) are tangential to the diameter increasing plate, and two ends of each guide hole are respectively opened on the outer ring faces of the end face (21) and the diameter increasing plate (1); every set of connection structure all includes guiding bolt (3), leading nut (4), two springs (5), and guiding bolt (3), leading nut (4) are arranged in two adjacent increase footpath board (1) respectively and are gone up mated guiding hole (10), and two springs (5) set up respectively in mated guiding hole (10) and all overlap on the screw rod of guiding bolt (3), and guiding nut (4) close soon on guiding bolt (3).

2. The elastomeric sleeve of claim 1, wherein: the elastic sleeve also comprises inserting plates (2), and the number of the inserting plates (2) is the same as that of the diameter increasing plates (1); the inserting plates (2) are positioned in the inner side grooves between two adjacent diameter increasing plates (1), and the length of the inserting plates (2) is the same as that of the tooth edges (11).

3. The elastomeric sleeve of claim 2, wherein: the elastic sleeve also comprises a handle (16), and the handle (16) is arranged at one end of the inserting plate (2).

4. The elastomeric sleeve of claim 1, wherein: each set of connecting structure also comprises a sliding sleeve (6), wherein the sliding sleeve (6) is positioned in an inner side groove between two adjacent diameter-increasing plates (1) and is sleeved on a screw rod of the guide bolt (3) positioned outside the guide hole (10).

5. The elastomeric sleeve of claim 1, wherein: the outside of the guide nut (4) is a cylindrical surface, one end of the inside of the guide nut is a threaded hole, the other end of the guide nut is a hexagon socket, and a threaded through hole (12) is formed in the end of the hexagon socket and used for installing a set screw (9).

6. The elastomeric sleeve of claim 1, wherein: the left end and the right end of the inner ring surface of the diameter increasing plate (1) are respectively provided with a groove, the trapezoidal positioning block (7) is fixed in the groove through a screw (8), and the trapezoidal inclined surface faces to the inner side and is large outside and small inside.

7. The elastomeric sleeve of claim 1, wherein: at least one diameter increasing plate (1) is provided with a threaded hole (14) along the center of the excircle arc for installing a hoisting screw (15).

8. The elastomeric sleeve of claim 1, wherein: at least one diameter increasing plate (1) is provided with a jaw (24).

9. The elastic sleeve according to any one of claims 1 to 8, wherein the method of replacing is:

① sleeving the elastic sleeve on the reel, which comprises contracting the reel to the minimum diameter, hoisting the elastic sleeve on the reel by an upper coiling trolley or a hoisting ring, making the positioning block on the diameter increasing plate of the elastic sleeve correspond to the positioning groove on the sector plate of the reel, expanding the reel to the maximum diameter, withdrawing the inserting plate, and expanding the elastic sleeve and the reel synchronously when the reel contracts again to increase the diameter of the reel;

② the elastic sleeve is removed from the reel by expanding the reel to a maximum diameter, inserting the insert plate, and then the elastic sleeve is restricted by the insert plate to be unable to be reduced when the reel is reduced to a certain extent, and the reel is reduced continuously, and the elastic sleeve can be removed from the reel by the coil-removing trolley or the hanging ring when the reel is reduced to a minimum diameter.

10. The method as claimed in claim 9, wherein in step ①, if the reel is a reel with jaws, the jaws of the elastic sleeve are matched with the jaws of the reel when the elastic sleeve is mounted on the reel.

Technical Field

The invention belongs to the technical field of cold-rolled plate strip coiling, and particularly relates to an elastic sleeve for a coiling block of an uncoiler and a coiler and a replacing method thereof.

Background

The reel is the core part of decoiler and coiling machine, and same reel generally only is used for decoiling or coiling of same internal diameter specification coil of strip, along with the demand of market to coil of strip diversified day by day, often can meet the condition that the decoiler or the coiling machine reel of same processing line need decoil or coil to the coil of strip of different internal diameter specifications to need frequently to change coil of strip internal diameter specification. The former method is to install diameter increasing plate on each sector plate of the reel or to install integral rubber sleeve on the reel to increase the diameter of the reel. Each diameter increasing plate is arranged on the sector plate and needs a plurality of bolts for fixing, the workload of installation and disassembly is huge, and the efficiency is low. Compared with a steel sleeve, the rubber sleeve has the advantages of poor wear resistance, short service life and certain limitation on use occasions.

In order to solve the problem that the winding drum is inconvenient to install and remove during diameter increasing, patent CN 106734366 a, "a winding drum diameter increasing device and a winding drum diameter increasing method thereof" discloses a winding drum diameter increasing device, diameter increasing plates of the device are connected through relatively independent spring units and guide units which are arranged at intervals, the spring units need to be provided with a plurality of notches in the length direction of the diameter increasing plates, threaded holes are required to be processed in each notch for installing a stud, a spring and a nut, the guide units need to process guide holes which are arranged in the tangential direction on the diameter increasing plates and pin holes which are arranged in the radial direction, semi-T-shaped grooves need to be processed on bumps on two side faces of the diameter increasing plates, and a fixing plate is inserted into a T-shaped groove formed by two adjacent two halves of the T-shaped grooves, so that the overall structure is complex, and the processing and the assembling are. The spring unit and the guide unit (connecting rod) connected with the diameter increasing plate in CN 209577779U "diameter increasing sleeve for coiler mandrel" are basically similar to the structure described in CN 106734366 a, except that the local structure is modified: if the stud and the nut for fixing the spring are changed into the screw, the guide pillar (connecting rod) and the corresponding hole are definite to be step-shaped, the diameter increasing plate is provided with a jaw and the like, and the structural complexity and the processing and assembling difficulty of the diameter increasing plate are not changed.

Disclosure of Invention

The invention aims to provide an elastic sleeve with a simple structure, which has a simple overall structure, greatly reduces the processing and assembling difficulty and can obviously reduce the manufacturing cost on the premise of realizing the diameter increasing function of a winding drum. In addition, the elastic sleeve is more convenient and flexible to replace. Meanwhile, the invention also provides a replacing method of the elastic sleeve.

The invention relates to an elastic sleeve with a simple structure, which comprises a plurality of diameter increasing plates and a plurality of sleeve connecting structures; the diameter increasing plates are all in fan ring shapes, and a cylindrical sleeve is formed between every two adjacent diameter increasing plates through a plurality of sleeve connecting structures; inner side grooves are processed on the two annular side surfaces of the diameter-increasing plate fan along the length direction to form a tooth edge and an end surface on the upper part; a plurality of grooves and lugs which are arranged at intervals are processed along the length direction of the tooth edge to form a tooth edge which is arranged in a concave-convex staggered manner, and the lugs of two adjacent diameter increasing plates extend into the corresponding grooves; a plurality of guide holes are arranged on the end surface along the length direction, the guide holes are tangential to the diameter increasing plate, and two ends of the guide holes are respectively opened on the end surface and the outer ring surface of the diameter increasing plate; each set of connecting structure comprises a guide bolt, a guide nut and two springs, the guide bolt and the guide nut are respectively arranged in the matched guide holes on the two adjacent diameter-increasing plates, the two springs are respectively arranged in the matched guide holes and are respectively sleeved on the screw rod of the guide bolt, and the guide nut is screwed on the guide bolt.

Furthermore, the elastic sleeve also comprises inserting plates, and the number of the inserting plates is the same as that of the diameter increasing plates; the inserting plates are positioned in the inner side grooves between two adjacent diameter increasing plates, and the length of the inserting plates is the same as that of the tooth edges.

Furthermore, the elastic sleeve also comprises a handle, and the handle is arranged at one end of the inserting plate.

Furthermore, each set of connecting structure also comprises a sliding sleeve, the sliding sleeve is positioned in an inner side groove between two adjacent diameter increasing plates, and the sliding sleeve is sleeved on a screw rod of the guide bolt positioned outside the guide hole.

Furthermore, the outside of the guide nut is a cylindrical surface, one end of the inside of the guide nut is a threaded hole, the other end of the inside of the guide nut is a hexagon socket, and a threaded through hole is formed in the end of the hexagon socket and used for installing a set screw.

Furthermore, the left end and the right end of the inner ring surface of the diameter increasing plate are respectively provided with a groove, the trapezoidal positioning block is fixed in the groove through screws, and the trapezoidal inclined surface faces the inner side and is large in outside and small in inside.

Furthermore, at least one diameter increasing plate is provided with a threaded hole along the center of the excircle arc for installing a hoisting screw.

Furthermore, at least one diameter increasing plate is provided with a jaw.

The replacing method of the elastic sleeve comprises the following steps:

① sleeving the elastic sleeve on the reel, which comprises contracting the reel to the minimum diameter, hoisting the elastic sleeve on the reel by an upper coiling trolley or a hoisting ring, making the positioning block on the diameter increasing plate of the elastic sleeve correspond to the positioning groove on the sector plate of the reel, expanding the reel to the maximum diameter, withdrawing the inserting plate, and expanding the elastic sleeve and the reel synchronously when the reel contracts again to increase the diameter of the reel;

② the elastic sleeve is removed from the reel by expanding the reel to a maximum diameter, inserting the insert plate, and then the elastic sleeve is restricted by the insert plate to be unable to be reduced when the reel is reduced to a certain extent, and the reel is reduced continuously, and the elastic sleeve can be removed from the reel by the coil-removing trolley or the hanging ring when the reel is reduced to a minimum diameter.

Further, if the roll is a roll with jaws and the flexible sleeve is mounted on the roll, the jaws on the flexible sleeve should correspond to the jaws on the roll in step ①.

The elastic sleeve has the advantages that: one, spring unit and direction unit integration become an organic whole, and guide bolt, leading nut, spring have constituteed a holistic connection structure unit promptly, and existing elastic action can play the guide effect again: the arrangement of the spring enables the diameter increasing plate to be conveniently enlarged or reduced, and the guide bolt and the guide nut not only play a role in guiding the diameter increasing plate during expansion and contraction, but also play a role in supporting the spring; the diameter-increasing plate does not need to be provided with a plurality of notches, threaded holes in the notches, pin holes, T-shaped grooves and the like, and only needs to be provided with through long inner side grooves and guide holes along the length direction, so that the diameter-increasing plate is obviously simplified in structure, the processing and assembling difficulty is greatly reduced, and the manufacturing cost can be obviously reduced; one end of the plug board is provided with a handle, so that the convenience and flexibility of the plug board operation during replacement of the elastic sleeve are greatly improved; thirdly, the part of the sliding sleeve is added, when the elastic sleeve is shrunk to a certain degree, the side face of the inner side vacancy groove can be contacted with the sliding sleeve, and the limiting effect is achieved when the elastic sleeve is shrunk; in addition, the sliding sleeve can rotate on the guide bolt, and the inserting plate can roll along the sliding sleeve, so that the installation and the disassembly of the inserting plate are facilitated, and the abrasion is reduced. In a word, the elastic sleeve with a simple structure has a simple integral structure on the premise of realizing the diameter increasing function of the winding drum, greatly reduces the processing and assembling difficulty, and can obviously reduce the manufacturing cost. In addition, the elastic sleeve is more convenient and flexible to replace.

Drawings

FIG. 1 is a schematic three-dimensional structure of the elastic sleeve of the present invention;

FIG. 2 is a front view of the elastomeric sleeve of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged schematic view taken at I in FIG. 3;

FIG. 5 is a schematic cross-sectional view taken at B-B of FIG. 2;

FIG. 6 is a schematic structural view of the interposer;

FIG. 7 is a schematic view of a diameter increasing plate;

FIG. 8 is a schematic cross-sectional view taken at C-C of FIG. 7;

FIG. 9 is a schematic view of a locating slot on a drum sector plate;

FIG. 10 is a schematic view of the pilot nut;

fig. 11 is a left side view of fig. 10.

FIG. 12 is a cross-sectional view taken at A-A of FIG. 2 when one of the reducer plates is provided with a jaw.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.