CN210668571U

CN210668571U - Needle winding mechanism

Info

Publication number: CN210668571U
Application number: CN201921852261.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-02
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a roll up needle mechanism, include: a first reel needle seat; the first winding needle is connected with the first winding needle seat; a second needle rolling seat; the sliding seat is arranged on one side of the second needle rolling seat close to the first needle rolling seat; the elastic piece is clamped between the second needle rolling seat and the sliding seat; the second winding needle is connected with the sliding seat; wherein, a driving structure is arranged between the first needle winding base and the sliding seat; when the second winding needle moves to be opposite to the first winding needle along the first direction, the driving structure can drive the sliding seat to compress the elastic part and move towards the direction far away from the first winding needle seat so that the first winding needle and the second winding needle form an outer contour for winding a winding material, and when the second winding needle moves to be mutually dislocated with the first winding needle along the opposite direction of the first direction, the elastic part can drive the sliding seat to move towards the direction close to the first winding needle seat so that the diameter of the outer contour formed by the first winding needle and the second winding needle is reduced, so that the winding needle mechanism can be separated from a battery cell wound on the first winding needle and the second winding needle.

Description

Needle winding mechanism

Technical Field

The utility model relates to a battery automation equipment technical field specifically is to relate to a roll up needle mechanism.

Background

In the cell preparation process of the battery, a winding needle mechanism is generally adopted to wind the winding material to form the cell of the battery. After the winding of the battery core is finished, the battery core needs to be removed from the winding needle mechanism, so that the winding needle mechanism can continue to wind the next battery core.

The inventor of this application discovers in long-term research and development that because the internal diameter of electricity core equals with the external diameter of rolling up the needle in rolling up the needle mechanism, removes the in-process with electricity core from rolling up the needle mechanism, and inlayer coiling material is taken away or is rubbed crumpled by rolling up needle mechanism easily in the inner chamber of electricity core, directly influences the quality of electricity core.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roll up needle mechanism to solve among the prior art electric core and remove the inner chamber intermediate layer coiling material of in-process electric core from rolling up needle mechanism and take away or rub the technical problem of wrinkle easily by rolling up needle mechanism.

In order to solve the above technical problem, an embodiment of the present invention adopts a technical solution that: a needle winding mechanism comprising: a first reel needle seat; the first winding needle is connected with the first winding needle seat; a second needle rolling seat; the sliding seat is arranged on one side, close to the first needle rolling seat, of the second needle rolling seat; the elastic piece is clamped between the second needle rolling seat and the sliding seat; the second winding needle is connected with the sliding seat; a driving structure is arranged between the first needle rolling seat and the sliding seat; when the second winding needle moves along the first direction to be opposite to the first winding needle, the driving structure can drive the sliding seat to compress the elastic piece and move towards the direction away from the first winding needle seat so that the first winding needle and the second winding needle form an outer contour for winding a winding material, and when the second winding needle moves along the direction opposite to the first direction to be mutually dislocated with the first winding needle, the elastic piece can drive the sliding seat to move towards the direction close to the first winding needle seat so that the diameter of the outer contour formed by the first winding needle and the second winding needle is reduced, so that the winding needle mechanism can be separated from a battery core wound on the first winding needle and the second winding needle.

In a specific embodiment, the driving structure includes a driving bevel disposed on the first reel seat and/or the sliding seat, and a distance between the driving bevel and the first reel gradually increases along the first direction.

In a specific embodiment, the needle holder further comprises a wedge block, the wedge block is detachably connected with the first needle holder, and one side of the wedge block, which is close to the sliding seat, is provided with the driving inclined surface.

In a specific embodiment, an adjusting member is further disposed on the first needle winding seat, and one end of the adjusting member abuts against the wedge block to adjust the position of the driving inclined surface of the wedge block.

In a specific embodiment, the apparatus further comprises a sliding assembly, wherein the sliding assembly comprises: the guide rod is connected with the second needle rolling seat and extends along the direction vertical to the first direction; and the guide sleeve is connected with the sliding seat and sleeved on the guide rod in a sliding manner.

In a specific embodiment, a limiting plate is arranged at one end of the guide rod, which is far away from the second needle rolling seat.

In a specific embodiment, the needle holder further comprises a pressing block, and the pressing block is respectively connected with the first needle winding seat and the sliding seat and is used for fixing one end of the first needle winding seat close to the first needle winding seat and one end of the second needle winding seat close to the sliding seat.

In a specific embodiment, a movable groove is arranged on one side of the second rolling needle seat close to the first rolling needle seat, and the sliding seat is at least partially accommodated in the movable groove and can move in the movable groove towards a direction close to or far away from the first rolling needle seat.

In a specific embodiment, a groove is formed in one side of the sliding seat close to the second needle rolling seat, the elastic piece is accommodated in the groove, one end of the elastic piece abuts against the groove, and the other end of the elastic piece abuts against the second needle rolling seat.

In a specific embodiment, further comprising a drive mechanism, the drive mechanism comprising: the first driving piece is connected with the first needle winding seat and used for driving the first needle winding seat to move back and forth along the first direction and the reverse direction of the first direction; and the second driving piece is connected with the second needle winding seat and used for driving the second needle winding seat to move back and forth along the first direction and the reverse direction of the first direction.

The utility model has the advantages that:

compared with the prior art, use the technical scheme of the utility model, through be provided with the slide in the second roll of needle file one side that is close to first roll of needle file, it is equipped with the elastic component to press from both sides between second roll of needle file and slide, and be provided with drive structure between first roll of needle file and slide, when coiling electric core, first roll of needle removes to coiling material department and pastes and lean on one side at coiling material along the first direction earlier, then the second roll of needle moves to and is relative with first roll of needle along the first direction in order to press from both sides coiling material between first roll of needle and second roll of needle, and drive structure can drive the slide compression elastic component and move so that first roll of needle and second roll of needle form the outline that is used for coiling material, it can rotate and form electric core with coiling material to roll up the needle mechanism this moment; when the electric core is wound, the second winding needle moves along the opposite direction of the first direction to be staggered with the first winding needle, the elastic part can drive the sliding seat to move towards the direction close to the first winding needle seat so that the diameter of the outer contour formed by the first winding needle and the second winding needle is reduced, and therefore the winding needle mechanism can be separated from the electric core wound on the first winding needle and the second winding needle, the inner winding material belt in the inner cavity of the electric core cannot be separated or crumpled, and the quality of the electric core is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic layout structure diagram of a needle winding mechanism according to a preferred embodiment of the present invention.

Detailed Description

For further explanation of the principles and structure of the present invention, reference will now be made in detail to the embodiments of the present invention, which are illustrated in the accompanying drawings. In addition, the following preferred embodiments are only some examples of the present invention, and not all examples. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, the needle winding mechanism in the embodiment of the present invention includes: the needle holder comprises a first needle winding seat 1, a first needle winding seat 2, a second needle winding seat 3, a sliding seat 4, a second needle winding seat 5 and an elastic piece 6. The first winding needle 2 is connected with the first winding needle seat 1. The sliding seat 4 is arranged on one side of the second reel needle seat 3 close to the first reel needle seat 1. The elastic element 6 is clamped between the second needle rolling seat 3 and the sliding seat 4. The second winding needle 5 is connected with the sliding seat 4. Wherein, a driving structure is arranged between the first reel needle seat 1 and the sliding seat 4; when the second winding needle 5 moves along the first direction D to be opposite to the first winding needle 2, the driving structure can drive the sliding seat 4 to compress the elastic piece 6 and move towards the direction away from the first winding needle seat 1 so that the first winding needle 2 and the second winding needle 5 form an outer contour for winding the winding material, and when the second winding needle 5 moves along the direction opposite to the first direction D to be mutually dislocated with the first winding needle 2, the elastic piece 6 can drive the sliding seat 4 to move towards the direction close to the first winding needle seat 1 so that the diameter of the outer contour formed by the first winding needle 2 and the second winding needle 5 is reduced, so that the winding needle mechanism can be separated from the electric core wound on the first winding needle 2 and the second winding needle 5.

By applying the technical scheme of the embodiment, the sliding seat 4 is arranged on one side of the second reel seat 3 close to the first reel seat 1, the elastic member 6 is clamped between the second reel seat 3 and the sliding seat 4, and the driving structure is arranged between the first reel seat 1 and the sliding seat 4, when a battery cell is wound, the first reel needle 2 firstly moves to the position of a winding material along the first direction D and is attached to one side of the winding material, then the second reel needle 5 moves to be opposite to the first reel needle 2 along the first direction D so as to clamp the winding material between the first reel needle 2 and the second reel needle 5, and the driving structure can drive the sliding seat 4 to compress the elastic member 6 and move towards the direction far away from the first reel seat 1 so that the first reel needle 2 and the second reel needle 5 form an outer contour for winding the winding material, and at the moment, the reel needle mechanism can rotate to wind the winding material to form the battery cell; when the winding of the battery cell is finished, the second winding needle 5 moves along the direction opposite to the first direction D to be dislocated with the first winding needle 2, and the elastic part 6 can drive the sliding seat 4 to move towards the direction close to the first winding needle seat 1 so as to reduce the diameter of the outer contour formed by the first winding needle 2 and the second winding needle 5, so that the winding needle mechanism can be separated from the battery cell wound on the first winding needle 2 and the second winding needle 5, the inner winding material in the inner cavity of the battery cell cannot be separated or crumpled, and the quality of the battery cell is ensured.

In this embodiment, the driving structure comprises a driving bevel provided on the first reel seat 1 and/or the slider 4, the distance between the driving bevel and the first reel 2 gradually increasing along the first direction D.

Specifically, a driving inclined plane may be disposed on the first roll needle holder 1, and the sliding base 4 may be disposed thereon with a driving roller, an arc protrusion, and the like, which are matched with the driving inclined plane, or the sliding base 4 may be disposed thereon with a driving inclined plane, and the first roll needle holder 1 may be disposed thereon with a driving roller, an arc protrusion, and the like, which are matched with the driving inclined plane, when the driving roller, the arc protrusion, and the like are moved along the first direction D, the driving inclined plane is limited to drive the sliding base 4 to move towards a direction away from the first roll needle holder 1, so that the first roll needle 2 and the second roll needle 5 form an outer contour for winding the wound material, which may be circular, rhombic, or elliptical.

Preferably, the first reel seat 1 and the sliding seat 4 are both provided with driving inclined planes, and the two driving inclined planes are mutually matched. Two driving inclined planes are adopted, so that the contact area of a driving structure arranged between the first needle rolling seat 1 and the sliding seat 4 is increased, and the stability and the reliability of movement are improved.

In this embodiment, the needle winding mechanism further includes a wedge block 10, the wedge block 10 is detachably connected to the first needle winding seat 1, and a side of the wedge block 10 close to the sliding seat 4 has a driving inclined surface. Through setting up wedge 10 and first roll of needle file 1 detachably connection, be convenient for process drive inclined plane.

Further, the first reel seat 1 is further provided with an adjusting piece 11, and one end of the adjusting piece 11 abuts against the wedge block 10 to adjust the position of the driving inclined plane of the wedge block 10.

Specifically, the wedge block 10 may be detachably connected to the first reel seat 1 using a screw. An adjusting piece 11 is arranged on the first reel needle seat 1, the adjusting piece 11 is in threaded connection with the first reel needle seat 1, and one end of the adjusting piece 11 abuts against the wedge block 10. Therefore, the distance between the wedge block 10 and the first winding needle holder 1 can be adjusted by screwing the adjusting piece 11 to adjust the position of the driving inclined plane, so that the distance for reducing the diameter of the outer contour formed by the first winding needle 2 and the second winding needle 5 can be adjusted to enable the winding needle mechanism to be separated from the battery core more smoothly. In a specific application scenario, the adjusting member 11 may be a jackscrew.

In this embodiment, the needle winding mechanism further comprises a sliding assembly, and the sliding assembly comprises a guide rod 8 and a guide sleeve 7. The guide rod 8 is connected with the second needle rolling seat 3 and extends along a direction perpendicular to the first direction D. The guide sleeve 7 is connected with the slide seat 4 and is sleeved on the guide rod 8 in a sliding manner. By providing a sliding assembly, the movement of the carriage 4 is more stable.

Specifically, the sliding assemblies are provided with a plurality of groups which are arranged side by side at intervals, and an elastic part 6 is arranged between two adjacent groups of sliding assemblies.

Further, a limiting plate 9 is arranged at one end of the guide rod 8 far away from the second needle rolling seat 3. By providing the limit plate 9, the moving distance of the slider 4 can be limited so as to limit the distance of diameter reduction of the outer contour formed by the first winding needle 2 and the second winding needle 5.

In this embodiment, the needle winding mechanism further includes a pressing block 12, and the pressing block 12 is connected to the first needle winding seat 1 and the sliding seat 4, respectively, and is configured to fix one end of the first needle winding 2 close to the first needle winding seat 1, and one end of the second needle winding 5 close to the sliding seat 4.

Specifically, the first winding needle 2 and the second winding needle 5 are respectively connected with the first winding needle seat 1 and the sliding seat 4 through screws, and due to the fact that a movable gap exists in threaded connection, the first winding needle 2 and the second winding needle 5 can rotate relative to the first winding needle seat 1 and the sliding seat 4 respectively. The pressing block 12 is arranged to fix one end of the first winding needle 2 close to the first winding needle seat 1, and one end of the second winding needle 5 close to the sliding seat 4, so that the first winding needle 2 and the second winding needle 5 can be prevented from rotating relative to the first winding needle seat 1 and the sliding seat 4.

In this embodiment, a movable groove is provided on a side of the second reel seat 3 close to the first reel seat 1, and the sliding seat 4 is at least partially accommodated in the movable groove and can move in the movable groove toward a direction close to or away from the first reel seat 1. By arranging the movable groove and accommodating at least part of the sliding seat 4 in the movable groove, the structure of the needle winding mechanism is more compact.

In this embodiment, a groove is disposed on one side of the sliding seat 4 close to the second needle rolling seat 3, the elastic element 6 is accommodated in the groove, one end of the elastic element 6 abuts against the groove, and the other end of the elastic element 6 abuts against the second needle rolling seat 3. By providing the groove and accommodating the elastic member 6 in the groove, the elastic member 6 is extended and contracted along the length direction thereof without twisting, so that the elastic force of the elastic member 6 can be controlled. In a specific application scenario, the elastic member 6 may be a spring.

In this embodiment, the needle winding mechanism further includes a driving mechanism including a first driving member 13 and a second driving member 14. The first driving piece 13 is connected with the first reel needle base 1 and used for driving the first reel needle base 1 to move back and forth along the first direction D and the reverse direction thereof; the second driving member 14 is connected to the second needle winding base 3 and is configured to drive the second needle winding base 3 to move back and forth along the first direction D and the opposite direction.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, left, right, up, down", "horizontal, vertical, horizontal, top, bottom" and the like are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention. The terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. )

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive. Those skilled in the art, having the benefit of the teachings of this invention, may effect numerous modifications thereto and changes may be made without departing from the scope and spirit of the invention as defined by the appended claims. Therefore, all equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A needle winding mechanism, comprising:

a first reel needle seat;

the first winding needle is connected with the first winding needle seat;

a second needle rolling seat;

the sliding seat is arranged on one side, close to the first needle rolling seat, of the second needle rolling seat;

the elastic piece is clamped between the second needle rolling seat and the sliding seat;

the second winding needle is connected with the sliding seat;

a driving structure is arranged between the first needle rolling seat and the sliding seat; when the second winding needle moves along the first direction to be opposite to the first winding needle, the driving structure can drive the sliding seat to compress the elastic piece and move towards the direction away from the first winding needle seat so that the first winding needle and the second winding needle form an outer contour for winding a winding material, and when the second winding needle moves along the direction opposite to the first direction to be mutually dislocated with the first winding needle, the elastic piece can drive the sliding seat to move towards the direction close to the first winding needle seat so that the diameter of the outer contour formed by the first winding needle and the second winding needle is reduced, so that the winding needle mechanism can be separated from a battery core wound on the first winding needle and the second winding needle.

2. The needle winding mechanism of claim 1, wherein said drive structure includes a drive ramp disposed on said first needle hub and/or said carriage, a distance between said drive ramp and said first needle increasing along said first direction.

3. The needle winding mechanism of claim 2 further comprising a wedge block removably connected to said first needle winding base, said wedge block having said drive ramp on a side thereof adjacent said carriage.

4. The needle winding mechanism according to claim 3, wherein an adjusting member is further disposed on the first needle winding seat, and one end of the adjusting member abuts against the wedge block for adjusting the position of the driving slope of the wedge block.

5. The needle winding mechanism of claim 1, further comprising a slide assembly, the slide assembly comprising:

the guide rod is connected with the second needle rolling seat and extends along the direction vertical to the first direction;

and the guide sleeve is connected with the sliding seat and sleeved on the guide rod in a sliding manner.

6. The needle winding mechanism according to claim 5, wherein a limiting plate is arranged at one end of the guide rod away from the second needle winding base.

7. The needle winding mechanism according to claim 1, further comprising a pressing block, wherein the pressing block is connected to the first needle winding seat and the sliding seat respectively, and is used for fixing one end of the first needle winding seat close to the first needle winding seat and one end of the second needle winding seat close to the sliding seat.

8. The needle winding mechanism of claim 1, wherein said second needle winding seat is provided with a movable slot on a side thereof adjacent to said first needle winding seat, said slider being at least partially received in said movable slot and being movable within said movable slot in a direction toward or away from said first needle winding seat.

9. The needle winding mechanism according to claim 1, wherein a groove is formed in a side of the sliding seat close to the second needle winding seat, the elastic member is accommodated in the groove, one end of the elastic member abuts against the groove, and the other end of the elastic member abuts against the second needle winding seat.

10. The needle winding mechanism according to any one of claims 1 to 9, further comprising a drive mechanism, the drive mechanism comprising:

the first driving piece is connected with the first needle winding seat and used for driving the first needle winding seat to move back and forth along the first direction and the reverse direction of the first direction;

and the second driving piece is connected with the second needle winding seat and used for driving the second needle winding seat to move back and forth along the first direction and the reverse direction of the first direction.