CN114455357A

CN114455357A - Unwinding device and winding machine

Info

Publication number: CN114455357A
Application number: CN202210224443.3A
Authority: CN
Inventors: 刘亮
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-05-10
Anticipated expiration: 2042-03-09
Also published as: CN114455357B

Abstract

The invention provides an unreeling device and a reeling machine, comprising: the device comprises a driving part, a rotating part, an expansion assembly and an adjusting part; the driving part is connected with the rotating part to drive the rotating part to rotate; n rolling positions are arranged on the rotating part, and N is a positive integer greater than or equal to two; the expansion components are connected with the rotating part and are arranged in one-to-one correspondence with the rolling positions; the adjusting part extends into the rotating part from one end of the rotating part and is matched with the expansion assembly so as to adjust the relative position of the expansion assembly along the radial direction of the rotating part; wherein, the material roll is sleeved outside the rotating part and is arranged corresponding to the roll position; the adjusting part adjusts the expansion assembly to generate displacement along the radial direction of the rotating part so as to realize expansion with the corresponding material roll, and the expanded material roll rotates synchronously with the rotating part. According to the invention, by arranging the expansion assembly capable of expanding with the material roll, selection of different unwinding stations is realized according to different unwinding requirements, the production continuity is ensured, and meanwhile, the working efficiency is improved.

Description

Unwinding device and winding machine

Technical Field

The invention relates to the technical field of machinery, in particular to an unreeling device and a reeling machine.

Background

The cell is usually manufactured by a winding process, and the corresponding equipment is a winding machine. The unreeling speed and the automation degree determine the production cost of the battery cell. The winder in the existing market can only unreel a single material roll, and when the material roll is used, production can be continued after the material roll needs to be reloaded, the production beat is interrupted, and the working efficiency is to be improved.

Disclosure of Invention

The invention provides an unreeling device and a reeling machine, which are used for solving the defect that the existing reeling process can only unreel a single material roll, and realize selection of different unreeling stations according to different unreeling requirements by arranging an expansion assembly capable of expanding with the material roll, thereby ensuring the production continuity and simultaneously improving the working efficiency.

According to a first aspect of the present invention, an unwinding device is provided, including: the device comprises a driving part, a rotating part, an expansion assembly and an adjusting part;

the driving part is connected with the rotating part so as to drive the rotating part to rotate;

the rotating part is provided with N rolling positions, and N is a positive integer greater than or equal to two;

the expansion assembly is connected with the rotating part and is arranged in one-to-one correspondence with the rolling positions;

the adjusting part extends into one end of the rotating part and is matched with the expansion assembly to adjust the relative position of the expansion assembly along the radial direction of the rotating part;

the material roll is sleeved outside the rotating part and is arranged corresponding to the roll position;

the adjusting part adjusts the expansion assembly to generate displacement along the radial direction of the rotating part so as to realize expansion of the material roll correspondingly, and the material roll after expansion rotates synchronously with the rotating part.

The invention can realize the respective selection and unreeling of a plurality of material roll positions, can feed a plurality of materials at one time and reduce the downtime. The degree of automation is higher, is favorable to production efficiency to promote.

According to an embodiment of the present invention, the rotating portion includes: the device comprises an expansion sleeve, an end cover, a bearing and a first positioning ring;

one end of the expansion sleeve is connected with the driving part, and the other end of the expansion sleeve is connected with the end cover;

the bearing and the expansion assembly are sequentially arranged at intervals and extend along the axial direction of the expansion sleeve;

the first positioning ring is sleeved at the end part of the expansion sleeve and is respectively abutted against the end cover and the bearing.

Particularly, this embodiment provides an embodiment of rotation portion, and the location to bloated tight subassembly, bearing and first locating ring has been realized to bloated cover and end cover, is provided with the bearing between the adjacent tight subassembly that expands, and first locating ring sets up in the tip that the cover is close to one side of the end cover that expands.

It should be noted that the expansion sleeve is of a hollow structure, the adjusting part is arranged inside the expansion sleeve, and the bearing is located on the outer side of the expansion sleeve, so that the bending and twisting resistance strength of the expansion sleeve is guaranteed.

According to one embodiment of the invention, the expansion assembly comprises: the second positioning ring, the expansion block and the guide block;

the second positioning rings are arranged at intervals around the circumferential direction of the expansion sleeve and synchronously rotate with the expansion sleeve;

one expansion block is arranged between every two adjacent second positioning rings;

the guide blocks and the expansion blocks are arranged in a one-to-one correspondence manner;

the adjusting part is matched with the guide block and drives the guide block to move along the axial direction of the rotating part so as to adjust the displacement of the expansion block along the radial direction of the expansion sleeve and realize the expansion of the expansion block and the material roll;

when the expansion block and the material roll are in a non-expansion state, the material roll is abutted to the bearing outer ring on two sides of the roll position.

Particularly, this embodiment provides an embodiment of tight subassembly expands through setting up the second holding ring for form the passageway that the tight piece of expanding removed between two adjacent second holding rings, be convenient for the tight piece of expanding radially adjust relative position along the expanding sleeve.

Furthermore, the guide block is arranged, so that the adjusting part can adjust the displacement of the expansion block through the guide block, namely the guide block plays a role in transmitting power.

According to an embodiment of the present invention, the adjusting portion includes: the first positioning plate, the second positioning plate, the pull rod and the adjusting power unit are arranged on the base;

the first positioning plate and the second positioning plate are arranged in the expansion sleeve at intervals;

the pull rod is respectively connected with the first positioning plate and the second positioning plate in a rotating way;

the adjusting power unit is connected with one end of the pull rod extending out of the expansion sleeve so as to adjust the axial displacement of the pull rod along the expansion sleeve;

the pull rod is matched with at least one guide block in the process of adjusting and displacing along the axial direction of the expansion sleeve so as to drive the guide block to move along the axial direction of the expansion sleeve;

the expansion block moves along the radial direction of the expansion sleeve in the axial movement process of the guide block along the expansion sleeve, so that the expansion of the material roll is realized.

Specifically, the present embodiment provides an implementation manner of the adjusting portion, which realizes the rotation support of the pull rod by providing the first positioning plate and the second positioning plate, and the adjusting power unit realizes the adjustment of the relative position of the pull rod along the axial direction of the expansion sleeve.

It should be noted that in practical applications, corresponding auxiliary devices such as a frame, a sliding friction unit, an air source, an electric power source, and a hydraulic source are further provided, and for saving space, the present invention does not excessively describe the above detailed portions, and reference may be made to related designs.

According to an embodiment of the present invention, the adjusting portion further includes: a limiting unit;

the limiting unit extends along the radial direction of the pull rod and is matched with the guide block, so that the guide block is driven to slide by the pull rod;

the N limiting units are arranged at intervals along the axial direction of the pull rod, and the distance between every two adjacent limiting units is the same as the distance between every two adjacent rolling positions;

and the axial projection of each limiting unit along the pull rod is at least partially not overlapped.

Particularly, this embodiment provides another kind of embodiment of regulating part, through setting up spacing unit, has realized the cooperation with the guide block, and the pull rod passes through to realize fixing a position between spacing unit and the guide block, and then the pulling or promote the guide block and remove, and the guide block gives the tight piece that expands with power transmission, and the tight piece that expands realizes the adjustment of displacement.

Furthermore, the limiting units are arranged in a way that at least part of the axial projections of the pull rods are not overlapped, so that each guide block is independently adjusted.

According to an embodiment of the invention, the guide block comprises: the block body, the guide groove, the avoidance groove and the limiting groove;

the center of the block body is provided with a first through hole for the pull rod to pass through;

the guide grooves are uniformly distributed on the surface of the block body along the circumferential direction and correspond to the expansion blocks one by one;

the avoidance groove is arranged in the block body to form a space for accommodating the limiting unit;

the limiting groove is arranged in the avoidance groove and is used for accommodating one limiting unit so as to realize that the pull rod drives the block body to slide through the limiting unit;

the matching surface of the guide groove and the expansion block is arranged in a wedge-shaped manner along the axial direction of the block body.

Specifically, this embodiment provides an implementation mode of guide block, and the setting of guide way for when the piece body moves along the cover axial that expands, through the radial production displacement of the tight piece of wedge drive along the cover that expands.

According to an embodiment of the invention, the guide block comprises: the block comprises a block body, a guide groove, a limiting seat and a limiting groove;

the limiting seat is arranged at one axial end part of the block body;

the limiting groove is arranged at the end part of the limiting seat opposite to the other side of the block body and is used for accommodating the limiting groove of one limiting unit so as to realize that the pull rod drives the block body to slide through the limiting unit;

Specifically, the embodiment provides another embodiment of the guide block, and the guide groove is arranged so that when the block body moves axially along the expansion sleeve, the wedge surface drives the expansion block to displace along the radial direction of the expansion sleeve.

Furthermore, through setting up spacing seat for spacing groove protrusion in piece body terminal surface, and other regions of spacing seat place one side then realize not holding with spacing groove complex spacing unit.

According to an embodiment of the present invention, the adjusting portion further includes: the guide shaft, the stop nut and the elastic unit;

two ends of the guide shaft are respectively and rotatably connected with the first positioning plate and the second positioning plate and sequentially penetrate through guide holes in the block body;

the stop nut is in threaded connection with the guide shaft;

the block body and the elastic unit are arranged between every two adjacent stop nuts;

the elastic unit is sleeved outside the guide shaft, one end of the elastic unit is abutted to the end face of the block body, and the other end of the elastic unit is abutted to the stop nut.

Particularly, the embodiment of this embodiment provides an implementation mode of another regulating part, through setting up the guiding axle, has guaranteed guide block pivoted stability, when avoiding expanding the cover and rotating, takes place the drunkenness between guide block and the expanding cover, and then spacing groove and spacing unit can not correspond the cooperation.

Furthermore, due to the arrangement of the stop nut and the elastic unit, elastic force is provided for resetting of the guide block, and meanwhile, the guide block is more stable in axial sliding along the guide shaft by being matched with the guide shaft, so that the guide block is prevented from moving.

According to an embodiment of the present invention, the adjusting portion further includes: the locking seat is sleeved outside the pull rod and is connected with the driving part;

the locking seat is provided with a second through hole for the pull rod to pass through;

a locking step is arranged on the pull rod;

when the pull rod and the guide block are in a non-matching state, the locking step is abutted to the locking seat, so that the pull rod is locked.

Particularly, this embodiment provides the embodiment of another kind of regulating part, through setting up locking seat and second through hole for when the pull rod does not cooperate with the guide block, can obtain corresponding frictional force through the inseparable cooperation of step and second through hole, avoid the pull rod to take place to rotate, also be convenient for rotate through the automatically controlled cover that expands, realize the accuracy of guide block and pull rod butt joint.

According to an embodiment of the present invention, further comprising: the device comprises a base, a slide rail, a movable seat and a deviation rectifying power unit;

the movable seat is in sliding connection with the base through the sliding rail;

the deviation rectifying power unit is connected with the movable seat;

wherein the driving part, the rotating part, the expansion assembly and the adjusting part are respectively and directly or indirectly arranged on the movable seat.

Particularly, this embodiment provides a base, slide rail, remove the seat and the implementation of the power pack that rectifies, through setting up base, slide rail, removal seat and the power pack that rectifies, realized the regulation to drive division, rotation portion, tight subassembly and the regulation portion relative position that expands for unreeling the in-process and taking place the displacement, result in unreeling the position and obtaining in time correcting when changing, perhaps because the correspondence that unreels releases the position change, and need carry out the material and roll up and in time adjust when unreeling the fine setting of position.

According to an embodiment of the present invention, further comprising: a pawl and a lock drive unit;

the clamping jaws are arranged in one-to-one correspondence with the roll positions and are abutted against the material roll on the roll positions so as to lock the material roll in a non-expansion state;

the locking driving unit is connected with the clamping jaw and drives the clamping jaw to rotate so as to realize locking and unlocking of the material roll.

Specifically, the present embodiment provides an implementation manner of a claw and a locking driving unit, which realizes the positioning of the material roll in the non-expansion state by providing the claw and the locking driving unit, and avoids the free rotation of the material roll in the non-expansion state when the material roll abuts against the outer ring of the bearing.

According to a second aspect of the present invention, a winding machine is provided, which has the unwinding device.

One or more technical solutions in the present invention have at least one of the following technical effects: according to the unwinding device and the winding machine, the expansion assembly capable of expanding with the material roll is arranged, so that different unwinding stations can be selected according to different unwinding requirements, the production continuity is guaranteed, and meanwhile the working efficiency is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is one of schematic assembly diagrams of an unwinding device according to the present invention;

fig. 2 is a second schematic view illustrating an assembly relationship of the unwinding device according to the present invention;

fig. 3 is a third schematic view illustrating an assembly relationship of the unwinding device according to the present invention;

FIG. 4 is a schematic view illustrating an assembly relationship between a pull rod and a limiting unit in the unwinding device according to the present invention;

fig. 5 is a schematic structural relationship diagram of a guide block in the unwinding device provided by the present invention;

fig. 6 is a second schematic structural relationship diagram of a guide block in the unwinding device provided by the present invention;

fig. 7 is a third schematic structural relationship diagram of a guide block in the unwinding device provided by the present invention;

fig. 8 is a fourth schematic view illustrating a structural relationship of a guide block in the unwinding device according to the present invention;

fig. 9 is a fourth schematic view illustrating an assembly relationship of the unwinding device according to the present invention;

fig. 10 is a fifth schematic view illustrating an assembly relationship of the unwinding device according to the present invention;

fig. 11 is a sixth schematic view illustrating an assembly relationship of the unwinding device according to the present invention.

Reference numerals:

10. a drive section;

20. a rotating part; 21. expanding the sleeve; 22. an end cap; 23. a bearing; 24. a first positioning ring;

30. expanding the assembly; 31. a second positioning ring; 32. expanding and tightening blocks; 33. a guide block; 331. a block body; 332. a guide groove; 333. an avoidance groove; 334. a limiting groove; 335. a first through hole; 336. a limiting seat; 337. a guide hole;

40. an adjustment section; 41. a first positioning plate; 42. a second positioning plate; 43. a pull rod; 431. a locking step; 44. adjusting the power unit; 45. a limiting unit; 46. a guide shaft; 47. a stop nut; 48. an elastic unit; 49. a locking seat; 491. a second through hole;

50. a base; 51. a slide rail; 52. a movable seat; 53. a deviation rectifying power unit;

60. a claw; 61. a lock drive unit;

70. a third retaining ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Fig. 1, 2 and 3 are one, two and three schematic views illustrating an assembly relationship of an unwinding device according to the present invention. The overall structure of the unwinding device is mainly shown, and as can be seen from fig. 1 to 3, the unwinding device further includes a support structure such as a rack and other transmission structures, too many details are not described in the above part of the present invention, and in practical application, reference may be made according to the settings in the related field.

In a possible embodiment, the driving part 10 is a driving motor, and the power supply for rotating the rotating part 20 is realized through a transmission manner such as a gear.

In a possible embodiment, the driving part 10 is also connected to the rotating part 20 by a frame, on which a corresponding gear transmission mechanism or the like is arranged, which enables the power of the driving part 10 to be transmitted to the rotating part 20.

Fig. 4 is a schematic view of an assembly relationship between the pull rod 43 and the limiting unit 45 in the unwinding device provided by the present invention, and mainly shows a specific structure of the pull rod 43.

Fig. 5 and 6 are one and two schematic structural relationships of a guide block 33 in the unwinding device provided by the present invention; mainly showing the structure of a guide block 33. In fig. 5 and 6, the guide block 33 includes an escape groove 333.

Fig. 7 and 8 are three and four schematic structural relationships of a guide block 33 in the unwinding device according to the present invention; another guide block 33 configuration is shown.

Fig. 9, 10 and 11 are four, five and six schematic views illustrating an assembly relationship of the unwinding device according to the present invention. Different working states of the pull rod 43, the guide block 33, the expansion block 32 and the like are shown.

Further, when the pull rod 43 is not matched with the guide block 33, the second through hole 491 on the locking seat is matched with the step 431 on the pull rod 43, so that the pull rod 43 is locked, and the pull rod 43 and the expansion sleeve 21 are prevented from rotating to influence the matching accuracy of the guide block 33 and the pull rod 43.

In some embodiments of the present invention, as shown in fig. 1 to 11, the present disclosure provides an unwinding device, including: the driving part 10, the rotating part 20, the expansion assembly 30 and the adjusting part 40; the driving part 10 is connected with the rotating part 20 to realize the rotation of the driving rotating part 20; the rotating part 20 is provided with N rolling positions, wherein N is a positive integer greater than or equal to two; the expansion assemblies 30 are connected with the rotating part 20 and are arranged corresponding to the winding positions one by one; the adjusting part 40 extends into one end of the rotating part 20 and is matched with the expansion assembly 30 to adjust the relative position of the expansion assembly 30 along the radial direction of the rotating part 20; wherein, the material roll is sleeved outside the rotating part 20 and is arranged corresponding to the roll position; the adjusting part 40 adjusts the expansion assembly 30 to displace along the radial direction of the rotating part 20 so as to realize expansion with the corresponding material roll, and the expanded material roll rotates synchronously with the rotating part 20.

In detail, the invention provides an unwinding device, which is used for solving the defect that the existing winding process can only unwind a single material roll, and realizes selection of different unwinding stations according to different unwinding requirements by arranging the expansion assembly 30 capable of expanding with the material roll, thereby ensuring the continuity of production and improving the working efficiency.

In some possible embodiments of the invention, the rotating part 20 comprises: an expansion sleeve 21, an end cover 22, a bearing 23 and a first positioning ring 24.

One end of the expansion sleeve 21 is connected with the driving part 10, and the other end of the expansion sleeve 21 is connected with the end cover 22.

The bearing 23 and the expansion assembly 30 are arranged at intervals in sequence and are arranged along the axial extension of the expansion sleeve 21.

The first positioning ring 24 is sleeved on the end of the expansion sleeve 21 and is respectively abutted with the end cover 22 and the bearing 23.

Specifically, the present embodiment provides an embodiment of the rotating part 20, the expansion sleeve 21 and the end cover 22 realize the positioning of the expansion assemblies 30, the bearings 23 and the first positioning ring 24, the bearings 23 are arranged between adjacent expansion assemblies 30, and the first positioning ring 24 is arranged at the end of the expansion sleeve 21 close to the end cover 22.

The expansion sleeve 21 is of a hollow structure, the adjusting portion 40 is partially arranged inside the expansion sleeve 21, and the bearing 23 and the like are positioned outside the expansion sleeve 21, so that the bending strength of the expansion sleeve 21 is guaranteed.

In a possible embodiment, the expansion assembly 30 abuts against the inner ring of the bearing 23.

In a possible embodiment, when the expansion assembly 30 does not form a displacement in the radial direction of the expansion sleeve 21, the outer ring of the bearing 23 abuts against the coil, so that the unexpanded coil can obtain a degree of freedom in the circumferential direction of the expansion sleeve 21.

In a possible embodiment, the relative position of the expansion assembly 30 is adjusted along the radial direction of the expansion sleeve 21, the expansion assembly 30 is abutted to the material roll, the material roll is separated from the outer ring of the bearing 23, and the expansion sleeve 21 rotates, and simultaneously, the expansion assembly 30 and the material roll rotate synchronously with the expansion sleeve 21.

In a possible embodiment, when the distance between two adjacent expansion assemblies 30 is too large, two bearings 23 may be disposed between two adjacent expansion assemblies 30, and a third positioning ring 70 may be disposed between the two bearings 23.

In some possible embodiments of the invention, the expansion assembly 30 comprises: a second positioning ring 31, an expansion block 32 and a guide block 33.

A plurality of second positioning rings 31 are provided at intervals around the circumference of the expansion sleeve 21 and rotate synchronously with the expansion sleeve 21.

An expansion block 32 is arranged between every two adjacent second positioning rings 31.

The guide blocks 33 are provided in one-to-one correspondence with the expansion blocks 32.

The adjusting portion 40 is matched with the guide block 33 and drives the guide block 33 to move along the axial direction of the rotating portion 20 so as to adjust the radial displacement of the expansion block 32 along the expansion sleeve 21, and the expansion of the expansion block 32 and the material roll is realized.

When the expansion block 32 and the material roll are in a non-expansion state, the material roll is abutted to the outer rings of the bearings 23 on two sides of the roll position.

Specifically, the embodiment of the expansion assembly 30 is provided, and the second positioning rings 31 are arranged, so that a channel for the expansion block 32 to move is formed between two adjacent second positioning rings 31, and the relative position of the expansion block 32 along the radial direction of the expansion sleeve 21 is convenient to adjust.

Further, the guide block 33 is provided to facilitate the adjustment portion 40 to adjust the displacement of the expansion block 32 by the guide block 33, that is, the guide block 33 functions to transmit power.

In some possible embodiments of the present invention, the adjusting part 40 includes: a first positioning plate 41, a second positioning plate 42, a pull rod 43 and an adjusting power unit 44.

The first positioning plate 41 and the second positioning plate 42 are arranged at intervals in the expansion sleeve 21.

The pull rod 43 is rotatably connected to the first positioning plate 41 and the second positioning plate 42, respectively.

The adjusting power unit 44 is connected with one end of the pull rod 43 extending out of the expansion sleeve 21 so as to realize the displacement of the adjusting pull rod 43 along the axial direction of the expansion sleeve 21.

The pull rod 43 is matched with at least one guide block 33 in the process of adjusting the displacement along the axial direction of the expansion sleeve 21 so as to drive the guide block 33 to move along the axial direction of the expansion sleeve 21.

The expansion block 32 moves along the radial direction of the expansion sleeve 21 in the process that the guide block 33 moves along the axial direction of the expansion sleeve 21, so that the expansion with the material roll is realized.

Specifically, the present embodiment provides an embodiment of the adjusting portion 40, wherein the first positioning plate 41 and the second positioning plate 42 are provided to rotatably support the pull rod 43, and the adjusting power unit 44 is provided to adjust the relative position of the pull rod 43 along the axial direction of the expansion sleeve 21.

In a possible embodiment, the adjustment power unit 44 is a cylinder.

In a possible embodiment, the adjustment power unit 44 is an electric cylinder.

In a possible embodiment, the adjustment power unit 44 is a hydraulic cylinder.

In some possible embodiments of the present invention, the adjusting part 40 further includes: and a limiting unit 45.

The limiting unit 45 extends along the radial direction of the pull rod 43 and is matched with the guide block 33, so that the guide block 33 is driven to slide by the pull rod 43.

The N limiting units 45 are arranged at intervals along the axial direction of the pull rod 43, and the distance between every two adjacent limiting units 45 is the same as that between every two adjacent rolling positions.

Wherein, the axial projection of each limit unit 45 along the pull rod 43 is at least partially non-overlapped.

Specifically, the present embodiment provides another implementation manner of the adjusting portion 40, a limiting unit 45 is provided to implement the matching with the guide block 33, the pull rod 43 is positioned between the limiting unit 45 and the guide block 33 to pull or push the guide block 33 to move, the guide block 33 transmits power to the expansion block 32, and the expansion block 32 implements the adjustment of displacement.

Further, the positioning of the limiting unit 45 in the axial direction of the pull rod 43 is at least partially non-overlapping, so that each guide block 33 can be adjusted independently.

In some possible embodiments of the invention, the guide block 33 comprises: the block body 331, the guide groove 332, the avoiding groove 333 and the limit groove 334.

The center of the block body 331 is provided with a first passing hole 335 for the passage of the tension rod 43.

The plurality of guide grooves 332 are uniformly distributed on the surface of the block body 331 along the circumferential direction, and correspond to the expansion blocks 32 one to one.

The escape groove 333 is provided inside the block body 331, forming a space for accommodating the limiting unit 45.

The limiting groove 334 is disposed in the avoiding groove 333 and is used for accommodating a limiting unit 45, so that the pull rod 43 can drive the block body 331 to slide through the limiting unit 45.

The matching surfaces of the guide groove 332 and the expansion block 32 are arranged in a wedge shape along the axial direction of the block body 331.

Specifically, the present embodiment provides an embodiment of the guide block 33, and the guide groove 332 is configured to drive the expansion block 32 to displace along the radial direction of the expansion sleeve 21 by the wedge surface when the block body 331 moves along the axial direction of the expansion sleeve 21.

In a possible embodiment, the limiting groove 334 is configured such that the corresponding limiting unit 45 on the pull rod 43 is correspondingly matched with the limiting groove 334, and the pull rod 43 drives the block body 331 to move.

In a possible embodiment, the escape groove 333 is provided such that the remaining stopper units 45 that are not positioned with respect to the block body 331 are accommodated in the escape groove 333.

In possible embodiment, the expansion sleeve 21 rotates to drive the block body 331 to rotate, so that the limit grooves 334 at different positions rotate, the matching with the limit units 45 at different stations on the pull rod 43 is realized, and the requirement for adjusting the corresponding material roll is met.

In some possible embodiments of the invention, the guide block 33 comprises: the block body 331, the guide groove 332, the stopper seat 336 and the stopper groove 334.

The stopper 336 is disposed at one axial end of the block body 331.

The limiting groove 334 is disposed at the end of the limiting seat 336 opposite to the other side of the block body 331, and is used for accommodating the limiting groove 334 of one limiting unit 45, so that the pull rod 43 can drive the block body 331 to slide through the limiting unit 45.

Specifically, in the present embodiment, another embodiment of the guide block 33 is provided, and the guide groove 332 is configured to drive the expansion block 32 to displace along the radial direction of the expansion sleeve 21 by the wedge surface when the block body 331 moves along the axial direction of the expansion sleeve 21.

Further, by arranging the limiting seat 336, the limiting groove 334 protrudes from the end face of the block body 331, and other areas on the side where the limiting seat 336 is located can accommodate the limiting unit 45 which is not matched with the limiting groove 334.

In some possible embodiments of the present invention, the adjusting part 40 further includes: a guide shaft 46, a stop nut 47 and an elastic unit 48.

The two ends of the guide shaft 46 are rotatably connected to the first positioning plate 41 and the second positioning plate 42, respectively, and sequentially pass through the guide holes 337 on the block body 331.

The retainer nut 47 is screwed to the guide shaft 46.

Between two adjacent stopper nuts 47, a block body 331 and an elastic unit 48 are provided.

The elastic unit 48 is sleeved outside the guide shaft 46, one end of the elastic unit 48 abuts against the end surface of the block body 331, and the other end of the elastic unit 48 abuts against the stop nut 47.

Specifically, the present embodiment provides another embodiment of the adjusting portion 40, and the guide shaft 46 is provided to ensure the stability of the rotation of the guide block 33, so as to prevent the guide block 33 and the expansion sleeve 21 from moving when the expansion sleeve 21 rotates, and further prevent the limiting groove 334 and the limiting unit 45 from being correspondingly engaged.

Further, the stop nut 47 and the elastic unit 48 are arranged to provide an elastic force for the resetting of the guide block 33, and simultaneously cooperate with the guide shaft 46, so that the guide block 33 is more stable in sliding along the axial direction of the guide shaft 46, and the occurrence of play is avoided.

In some possible embodiments of the present invention, the adjusting part 40 further includes: and a locking seat 49, wherein the locking seat 49 is sleeved outside the pull rod 43 and is connected with the driving part 10.

The lock base 49 is provided with a second through hole 491 through which the pull rod 43 passes.

A locking step 431 is provided on the pull rod 43.

When the pull rod 43 is not engaged with the guide block 33, the locking step 431 abuts against the locking seat 49 to lock the pull rod 43.

Specifically, the present embodiment provides another embodiment of the adjusting portion 40, and by providing the locking seat 49 and the second through hole 491, when the pull rod 43 is not engaged with the guide block 33, the step 431 and the second through hole 491 can be tightly engaged to obtain a corresponding friction force, so as to prevent the pull rod 43 from rotating, and facilitate the rotation of the electrically controlled expansion sleeve 21, so as to achieve the accuracy of the abutment between the guide block 33 and the pull rod 43.

In some possible embodiments of the present invention, the method further includes: the device comprises a base 50, a slide rail 51, a movable seat 52 and a deviation rectifying power unit 53.

The movable seat 52 is slidably connected to the base 50 via a slide rail 51.

The deviation rectifying power unit 53 is connected with the movable base 52.

Wherein, the driving part 10, the rotating part 20, the expansion assembly 30 and the adjusting part 40 are respectively and directly or indirectly arranged on the movable seat 52.

Specifically, the present embodiment provides an implementation manner of a base 50, a slide rail 51, a moving seat 52, and a deviation rectifying power unit 53, and by providing the base 50, the slide rail 51, the moving seat 52, and the deviation rectifying power unit 53, the adjustment of the relative positions of the driving portion 10, the rotating portion 20, the expansion assembly 30, and the adjusting portion 40 is achieved, so that the displacement occurs during the unwinding process, and the unwinding position is timely corrected when the unwinding position changes, or the position is changed due to the corresponding unwinding position change, and the adjustment is timely performed when fine adjustment of the unwinding position of the material roll needs to be performed.

In a possible embodiment, the corrective power unit 53 is a pneumatic cylinder.

In a possible embodiment, the deviation rectification power unit 53 is an electric cylinder.

In a possible embodiment, the corrective power unit 53 is a hydraulic cylinder.

In some possible embodiments of the present invention, the method further includes: a pawl 60 and a locking drive unit 61.

The claws 60 are arranged corresponding to the roll positions one by one and abut against the roll on the roll positions to lock the roll in a non-expansion state.

The locking driving unit 61 is connected to the jaws 60 to drive the jaws 60 to rotate, thereby locking and unlocking the roll.

Specifically, the present embodiment provides an embodiment of the latch 60 and the lock driving unit 61, and by providing the latch 60 and the lock driving unit 61, the positioning of the non-expanded material roll is realized, and the free rotation of the non-expanded material roll is avoided when the outer ring of the bearing 23 abuts against the non-expanded material roll.

In a possible embodiment, the jaws 60 are provided with a centre of rotation about which the locking drive unit 61 drives the jaws 60 in rotation, one end of the jaws 60 being able to abut against the roll or the respective bearing 23, thereby achieving the positioning of the roll.

In a possible embodiment, the locking drive unit 61 is a pneumatic cylinder.

In a possible embodiment, the locking drive unit 61 is an electric cylinder.

In a possible embodiment, the locking drive unit 61 is a hydraulic cylinder.

In some embodiments of the present invention, the present disclosure provides a winding machine having an unwinding device as described above.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "a manner," "a particular manner," or "some manner" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or manner is included in at least one embodiment or manner of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or mode. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or modes. Furthermore, various embodiments or modes described in this specification, as well as features of various embodiments or modes, may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The utility model provides an unwinding device which characterized in that includes: the device comprises a driving part (10), a rotating part (20), an expansion assembly (30) and an adjusting part (40);

the driving part (10) is connected with the rotating part (20) to drive the rotating part (20) to rotate;

the rotating part (20) is provided with N rolling positions, and N is a positive integer greater than or equal to two;

the expansion assembly (30) is connected with the rotating part (20) and is arranged in one-to-one correspondence with the rolling positions;

the adjusting part (40) extends into one end of the rotating part (20) and is matched with the expansion assembly (30) to realize the adjustment of the relative position of the expansion assembly (30) along the radial direction of the rotating part (20);

wherein, the material roll is sleeved outside the rotating part (20) and is arranged corresponding to the roll position;

the adjusting part (40) adjusts the expansion assembly (30) to generate displacement along the radial direction of the rotating part (20) so as to realize expansion with the corresponding material roll, and the expanded material roll and the rotating part (20) rotate synchronously.

2. Unwinding device according to claim 1, characterised in that said rotating portion (20) comprises: the expansion sleeve (21), the end cover (22), the bearing (23) and the first positioning ring (24);

one end of the expansion sleeve (21) is connected with the driving part (10), and the other end of the expansion sleeve (21) is connected with the end cover (22);

the bearings (23) and the expansion assemblies (30) are sequentially arranged at intervals and extend along the axial direction of the expansion sleeve (21);

the first positioning ring (24) is sleeved at the end part of the expansion sleeve (21) and is respectively abutted against the end cover (22) and the bearing (23).

3. Unwinding device according to claim 2, wherein the expansion assembly (30) comprises: a second positioning ring (31), an expansion block (32) and a guide block (33);

the second positioning rings (31) are arranged around the circumferential direction of the expansion sleeve (21) at intervals and rotate synchronously with the expansion sleeve (21);

one expansion block (32) is arranged between every two adjacent second positioning rings (31);

the guide blocks (33) and the expansion blocks (32) are arranged in a one-to-one correspondence manner;

the adjusting part (40) is matched with the guide block (33) and drives the guide block (33) to move along the axial direction of the rotating part (20) so as to adjust the radial displacement of the expansion block (32) along the expansion sleeve (21) and realize the expansion of the expansion block (32) and the material roll;

when the expansion block (32) and the material roll are in a non-expansion state, the material roll is abutted to the outer rings of the bearings (23) on two sides of the roll position.

4. Unwinding device according to claim 3, characterised in that said adjustment portion (40) comprises: a first positioning plate (41), a second positioning plate (42), a pull rod (43) and an adjusting power unit (44);

the first positioning plate (41) and the second positioning plate (42) are arranged in the expansion sleeve (21) at intervals;

the pull rod (43) is respectively connected with the first positioning plate (41) and the second positioning plate (42) in a rotating manner;

the adjusting power unit (44) is connected with one end, extending out of the expansion sleeve (21), of the pull rod (43) so as to realize adjustment of the displacement of the pull rod (43) along the axial direction of the expansion sleeve (21);

the pull rod (43) is matched with at least one guide block (33) in the process of adjusting and displacing along the axial direction of the expansion sleeve (21) so as to drive the guide block (33) to move along the axial direction of the expansion sleeve (21);

and the expansion block (32) moves along the radial direction of the expansion sleeve (21) in the process that the guide block (33) moves along the axial direction of the expansion sleeve (21) to realize the expansion with the material roll.

5. Unwinding device according to claim 4, characterised in that said adjustment portion (40) further comprises: a limiting unit (45);

the limiting unit (45) extends along the radial direction of the pull rod (43) and is matched with the guide block (33) to drive the guide block (33) to slide through the pull rod (43);

the N limiting units (45) are arranged at intervals along the axial direction of the pull rod (43), and the distance between every two adjacent limiting units (45) is the same as that between every two adjacent rolling positions;

wherein, the axial projection of each limiting unit (45) along the pull rod (43) is at least partially non-overlapped.

6. Unwinding device according to claim 5, characterised in that said guide block (33) comprises: the block comprises a block body (331), a guide groove (332), an avoiding groove (333) and a limiting groove (334);

the center of the block body (331) is provided with a first through hole (335) for the pull rod (43) to pass through;

the guide grooves (332) are uniformly distributed on the surface of the block body (331) along the circumferential direction and correspond to the expansion blocks (32) one by one;

the avoiding groove (333) is arranged in the block body (331) to form a space for accommodating the limiting unit (45);

the limiting groove (334) is arranged in the avoiding groove (333) and is used for accommodating one limiting unit (45) so as to enable the pull rod (43) to drive the block body (331) to slide through the limiting unit (45);

the matching surface of the guide groove (332) and the expansion block (32) is arranged in a wedge-shaped surface along the axial direction of the block body (331).

7. Unwinding device according to claim 5, characterised in that said guide block (33) comprises: the block comprises a block body (331), a guide groove (332), a limiting seat (336) and a limiting groove (334);

the limiting seat (336) is arranged at one axial end part of the block body (331);

the limiting groove (334) is arranged at the end part of the limiting seat (336) opposite to the other side of the block body (331) and is used for accommodating the limiting groove (334) of one limiting unit (45) so as to realize the sliding of the pull rod (43) driving the block body (331) through the limiting unit (45);

8. Unwinding device according to claim 6 or 7, characterised in that said adjustment section (40) further comprises: a guide shaft (46), a stopper nut (47), and an elastic unit (48);

two ends of the guide shaft (46) are respectively and rotatably connected with the first positioning plate (41) and the second positioning plate (42) and sequentially penetrate through guide holes (337) in the block body (331);

the stop nut (47) is in threaded connection with the guide shaft (46);

the block body (331) and the elastic unit (48) are arranged between two adjacent stop nuts (47);

the elastic unit (48) is sleeved outside the guide shaft (46), one end of the elastic unit (48) is abutted to the end face of the block body (331), and the other end of the elastic unit (48) is abutted to the stop nut (47).

9. Unwinding device according to any one of claims 4 to 7, characterised in that said adjustment portion (40) further comprises: the locking seat (49) is sleeved outside the pull rod (43) and connected with the driving part (10);

a second through hole (491) for the pull rod (43) to pass through is arranged on the locking seat (49);

a locking step (431) is arranged on the pull rod (43);

when the pull rod (43) and the guide block (33) are in a non-matching state, the locking step (431) is abutted to the locking seat (49) so as to realize locking of the pull rod (43).

10. The unwinding device of any one of claims 1 to 7, further comprising: the device comprises a base (50), a slide rail (51), a movable seat (52) and a deviation rectifying power unit (53);

the movable seat (52) is in sliding connection with the base (50) through the sliding rail (51);

the deviation rectifying power unit (53) is connected with the movable seat (52);

wherein the driving part (10), the rotating part (20), the expansion assembly (30) and the adjusting part (40) are respectively and directly or indirectly arranged on the movable seat (52).

11. The unwinding device of any one of claims 1 to 7, further comprising: a pawl (60) and a lock drive unit (61);

the clamping jaws (60) are arranged in one-to-one correspondence with the roll positions and are abutted against the material roll on the roll positions so as to lock the material roll in a non-expansion state;

the locking driving unit (61) is connected with the clamping jaw (60) and drives the clamping jaw (60) to rotate so as to realize the locking and unlocking of the material roll.

12. A winding machine, characterized by having an unwinding device according to any one of the preceding claims 1 to 11.