CN216015441U - Winding needle control mechanism and winding equipment - Google Patents

Abstract

The utility model relates to a winding needle control mechanism and winding equipment. This book needle control mechanism includes: a mounting seat; the first control assembly comprises a first moving seat and a plurality of first stirring pieces, the first moving seat is arranged on the mounting seat and is controlled to move along a first direction relative to the first moving seat, the plurality of first stirring pieces are arranged on the first moving seat and are distributed along an arc line with a first axis as a central axis, and the first axis is parallel to the first direction; in the process that the needle winding mechanism rotates away from the blanking station, the first poking pieces are sequentially matched with the first poking blocks of the needle winding mechanism to drive the first poking blocks of the needle winding mechanism to move along the first direction. So, when first book needle is along with the carousel by unloading station to coiling station rotational motion, a plurality of first pieces of dialling stir first shifting block and remove along the first direction to make first book needle stretch out along the axial, two actions go on simultaneously promptly, are favorable to saving the action time, improve production efficiency.

Description

Winding needle control mechanism and winding equipment

Technical Field

The utility model relates to the technical field of battery manufacturing equipment, in particular to a winding needle control mechanism and winding equipment.

Background

The battery core is one of the core components of the battery, and is often formed by winding with a winding machine. The winding machine comprises a turret, and a winding needle mechanism is arranged on the turret. When the turret drives the winding needle mechanism to rotate to the winding station, the first winding needle and the second winding needle on the winding needle mechanism rotate so as to wind on the first winding needle and the second winding needle to form the battery cell. When the turret drives the needle winding mechanism to rotate to the blanking station, the needle winding control mechanism needs to be utilized to respectively stir the first winding needle and the second winding needle on the needle winding mechanism to retract so as to draw out the electric core, then the second winding needle needs to be stirred to extend out again, and after the second winding needle extends out in place, the turret drives the needle winding mechanism to rotate to the winding station.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a winding needle control mechanism and a winding device for overcoming the above-mentioned defects, aiming at the problems of the prior art that the needle setting process is complicated, the time consumption is long, and the production efficiency is low during the blanking process.

A roll needle control mechanism, lay corresponding to unloading station, roll needle control mechanism includes:

a mounting seat; and

the first control assembly comprises a first moving seat and a plurality of first stirring pieces, the first moving seat is arranged on the mounting seat and is controlled to move along a first direction relative to the first moving seat, the plurality of first stirring pieces are arranged on the first moving seat and are distributed along an arc line with a first axis as a central axis, and the first axis is parallel to the first direction;

in the process that the needle winding mechanism rotates away from the blanking station, the first poking pieces are sequentially matched with the first poking blocks of the needle winding mechanism to drive the first poking blocks of the needle winding mechanism to move in the first direction.

In one embodiment, the first movable seat has a mounting portion extending lengthwise along the arc line, and the first toggle pieces are mounted along the mounting portion.

In one embodiment, the first toggle piece is a roller.

In one embodiment, the first control assembly further comprises a movable seat arranged on the mounting seat and a second toggle piece arranged on the movable seat;

the movable seat and the first movable seat synchronously move along the first direction, and when the needle winding mechanism rotates to the blanking station, the second shifting piece is matched with the first shifting block of the needle winding mechanism to drive the first shifting block of the needle winding mechanism to move along the first direction.

In one embodiment, the needle rolling control mechanism further comprises a first driving assembly arranged on the mounting seat, and the first driving assembly is in driving connection with the first moving seat.

In one embodiment, the first driving assembly comprises a first driving piece, a first screw rod nut and a first driving block;

the first lead screw is rotatably connected with the mounting seat around the axis of the first lead screw, the first driving piece is arranged on the mounting seat and is in transmission connection with the first lead screw, the first lead screw nut is in threaded connection with the first lead screw, and the first driving block is connected with the first lead screw nut and the first movable seat.

In one embodiment, the needle rolling control mechanism further comprises a second control assembly, wherein the second control assembly comprises a second moving seat, a first clamping piece and a second clamping piece;

the second moving seat is arranged on the mounting seat and is controlled to move along the first direction relative to the mounting seat, the first clamping piece and the second clamping piece are arranged on the second moving seat, and at least one of the first clamping piece and the second clamping piece can move to a first state and a second state relative to the other one of the first clamping piece and the second clamping piece;

when the first clamping piece and the second clamping piece move relatively to the first state, the first clamping piece and the second clamping piece are arranged relatively in the first direction so as to clamp a second shifting block of the needle winding mechanism rotating to the blanking station; when the first clamping piece and the second clamping piece move relatively to the second state, the first clamping piece and the second clamping piece are arranged in a staggered mode in the first direction.

In one embodiment, the second control assembly further comprises a fixed plate, a movable plate and a clamping driving member, the fixed plate is mounted on the second movable seat, the first clamping member is mounted on the fixed plate, the movable plate is movably connected to the fixed plate along a second direction, the second clamping member is mounted on the movable plate, and the clamping driving member is disposed on the second movable seat and is in driving connection with the movable plate;

wherein the second direction intersects the first direction.

In one embodiment, the needle rolling control mechanism further comprises a second driving assembly arranged on the mounting seat, and the second driving assembly is in driving connection with the second movable seat.

A winding apparatus comprising a winding pin control mechanism as described in any of the above embodiments.

According to the needle rolling control mechanism and the winding equipment, when the first rolling needle rotates and moves from the blanking station to the winding station along with the turntable, the first shifting blocks are shifted by the first shifting pieces to move along the first direction, so that the first rolling needle extends out along the axial direction, namely, two actions are simultaneously performed, the action time is saved, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a turret of a winding apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a needle winding mechanism of the turret shown in FIG. 1;

FIG. 3 is a front view of a needle winding control mechanism in accordance with an embodiment of the present invention;

FIG. 4 is a right side view of the needle winding control mechanism shown in FIG. 3;

fig. 5 is a left side view of the needle winding control mechanism shown in fig. 3.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, 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 an intermediate. 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.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, an embodiment of the present invention provides a winding apparatus including a turret 1 and a winding pin control mechanism 2 (see fig. 3).

The turret 1 comprises a turntable 10 and a winding mechanism 11 mounted on the turntable 10, the turntable 10 being controllably rotatable about a first axis. The rotating disc 10 can drive the winding needle mechanism 11 to reach a winding station a for winding and a blanking station C for blanking the battery cell in the rotating process. Of course, in other embodiments, the needle winding mechanism 11 can be driven to the tape-sticking station B during the rotation of the rotary disk 10.

With continued reference to fig. 2, the needle winding mechanism 11 includes a sleeve 110, a first sliding shaft 111, a second sliding shaft 112, a first winding needle 1111, a second winding needle 1121, a first dial 1112, and a second dial 1122. The sleeve 110 is rotatably connected to the turntable 10 around its axis, and the first sliding shaft 111 is sleeved in the sleeve 110 and is axially movable relative to the sleeve 110. The second sliding shaft 112 is sleeved in the first sliding shaft 111 and is movable along an axis relative to the second sliding shaft 112. The first winding needle 1111 is mounted at one end of the first sliding shaft 111, the second winding needle 1121 is mounted at one end of the second sliding shaft 112, and the first winding needle 1111 and the second winding needle 1121 are spliced together to form an integral winding needle for winding and molding the battery core. The first shifting block 1112 is connected to an end of the first sliding shaft 111 facing away from the first winding needle 1111, and the second shifting block 1122 is connected to an end of the second sliding shaft 112 facing away from the second winding needle 1121.

When the turntable 10 drives the first winding needle 1111 and the second winding needle 1121 to reach the winding station a, the sleeve 110 rotates around its axis, so as to drive the first sliding shaft 111 and the second sliding shaft 112 to rotate, and further drive the first winding needle 1111 and the second winding needle 1121 to rotate, so as to wind the first winding needle 1111 and the second winding needle 1121 to form a battery cell. After winding, the turntable 10 drives the first winding needle 1111 and the second winding needle 1121 to reach the rubberizing station B, and at this time, rubberizing is performed on the battery cell, so that the battery cell is prevented from being loose.

After the rubberizing is finished, the turntable 10 drives the first winding needle 1111 and the second winding needle 1121 to reach the blanking station C, and at this time, the winding needle control mechanism 2 successively stirs the second shifting block 1122 and the first shifting block 1112, so that the second winding needle 1121 and the first winding needle 1111 successively retract along the axial direction, and are successively drawn out from the electric core, thereby realizing the blanking of the electric core. Then, the turntable 10 drives the first winding needle 1111 and the second winding needle 1121 to rotate toward the winding station a, and the winding needle control mechanism 2 dials the first dial 1112, so that the first winding needle 1111 extends axially. When the turntable 10 drives the first winding needle 1111 and the second winding needle 1121 to reach the winding station a, the first winding needle 1111 also extends to the right position, and at this time, the tape can be inserted into the first winding needle 1111, and then the second winding needle 1121 is controlled to extend (the second shifting block 1122 can be shifted by using the shifting mechanism disposed at the winding station a, so that the second winding needle 1121 extends), so that the tape is located between the first winding needle 1111 and the second winding needle 1121, and is ready for the next winding.

That is to say, the winding needle control mechanism 2 is disposed corresponding to the blanking station C, and is configured to successively shift the second shifting block 1122 and the first shifting block 1112 when the first winding needle 1111 and the second winding needle 1121 reach the blanking station C, so that the second winding needle 1121 and the first winding needle 1111 are successively retracted in the axial direction, and are successively extracted from the electric core, and the first shifting block 1112 is shifted while the first winding needle 1111 and the second winding needle 1121 follow the turntable 10 to move from the blanking station C to the winding station a in a rotating manner, so that the first winding needle 1111 extends in the axial direction, that is, the movement along with the rotation of the turntable 10 and the movement along with the extension of the first winding needle 1111 are performed simultaneously, which can save the movement time and improve the production efficiency. It should be noted that, in the embodiment shown in fig. 2, extending the first winding needle 1121 means that the first winding needle 1121 is moved from right to left to the position shown in the drawing, and retracting the first winding needle 1121 means that the first winding needle 1121 is moved from the position shown in the drawing to right until the first winding needle 1121 is extracted from the battery cell. Similarly, the second winding needle 1111 is extended to move the second winding needle 1111 from right to left to the position shown in the figure, and the second winding needle 1111 is retracted to move the second winding needle 1111 from the position shown in the figure to right until the second winding needle 1111 is extracted from the battery cell.

Further, the sleeve 110 is rotatably connected to the turntable 10 by a bearing 1102. The first sliding shaft 111 is connected with the sleeve 110 by a key, so that the first sliding shaft 111 can move axially relative to the sleeve 110 and can rotate synchronously with the sleeve 110. The second sliding shaft 112 is connected with the first sliding shaft 111 through a key, so that the second sliding shaft 112 can move axially relative to the first sliding shaft 111 and can rotate synchronously with the first sliding shaft 111.

Further, the turret 1 further includes a rotation driving mechanism (not shown) mounted on the turntable 10, and the rotation driving mechanism is in transmission connection with the sleeve 110 to drive the sleeve 110 to rotate around its axis, so as to drive the first sliding shaft 111 and the second sliding shaft 112 to rotate synchronously, and further drive the first winding needle 1111 and the second winding needle 1121 to rotate synchronously for winding. It should be noted that the rotation driving mechanism may adopt a mature structure such as a gear transmission, as long as the rotation driving mechanism can drive the sleeve 110 to rotate around its own axis, and the rotation driving mechanism is not limited herein.

It should be noted that three needle winding mechanisms 11 can be mounted on the rotary table 10, and all the three needle winding mechanisms 11 rotate along with the rotary table 10 among the winding station a, the rubberizing station B and the blanking station C. When one of the needle winding mechanisms 11 is located at one of the stations, the other two needle winding mechanisms 11 are respectively located at the other two stations, so that the winding process of the winding station A, the rubberizing process of the rubberizing station B and the blanking process of the blanking station C are ensured to be synchronously performed, and the production efficiency is favorably improved.

Referring to fig. 3 to 5, in the embodiment of the present invention, the needle winding control mechanism 2 includes a mounting seat 21 and a first control assembly 22. The first control assembly 22 includes a first movable base 220 and a plurality of first toggle members 221. The first moving base 220 is disposed on the mounting base 21 and is controllably moved back and forth along a first direction relative to the mounting base 21. The plurality of first toggle members 221 are mounted on the first movable base 220 to reciprocate along the first direction with the first movable base 220. The plurality of first toggle pieces 221 are arranged along an arc line with a first axis as a central axis, and the first axis is parallel to the first direction.

When the needle winding mechanism 11 rotates away from the feeding station C (i.e. when the needle winding mechanism 11 moves from the feeding station C to the winding station a), the first shifting block 1112 of the needle winding mechanism 11 moves along the arc line, so that the first shifting block 1112 of the needle winding mechanism 11 is sequentially engaged with the plurality of first shifting members 221, i.e. the first shifting block 1112 of the needle winding mechanism 11 is always engaged with one first shifting member 221, so that each first shifting member 221 moves along the first direction along with the first movable base 220 to drive the first shifting block 1112 to move along the first direction, and further drive the first needle 1111 on the first sliding shaft 111 to axially extend. Like this, when first coil needle 1111 is along with carousel 10 by unloading station C to coiling station A rotational motion, a plurality of first stirring piece 221 stir first shifting block 1112 and remove along first direction to make first coil needle 1111 stretch out along the axial, two actions go on simultaneously promptly, are favorable to saving the action time, improve production efficiency. It is understood that the first direction is parallel to the axial direction of the sleeve 110, the first sliding shaft 111, and the second sliding shaft 112.

In an embodiment, the first movable base 220 has a mounting portion 2201 extending along the arc line, and the plurality of first shifting members 221 are mounted on the mounting portion 2201, so that when the first winding needle 1111 and the second winding needle 1121 rotate along with the rotary plate 10, the first shifting block 1112 moves along the inner side of the mounting portion 2201, and the first shifting block 1112 can be ensured to be always engaged with one of the first shifting members 221.

In an embodiment, the first shifting block 1112 has an annular groove 1113 circumferentially arranged, and the annular groove 1113 is configured to accommodate the first shifting block 221, so that the first shifting block 221 and the first shifting block 1112 are engaged, and the first shifting block 1112 can be driven to move along with the first shifting block 1112 when the first shifting block 221 moves along the first direction.

Specifically, in the embodiment, the first toggle member 221 may be a roller, so that rolling friction is formed between the first toggle member 221 and the first toggle block 1112, thereby ensuring that the first toggle member 221 can drive the first toggle block 1112 to move along the first direction, and reducing interference on the first toggle block 1112 following the rotation of the turntable 10, so that the first toggle block 1112 can smoothly follow the rotation of the turntable 10.

Specifically, in an embodiment, the first control assembly 22 further includes a movable base 223 disposed on the mounting base 21 and a second toggle member 222 mounted on the movable base 223, wherein the movable base 223 and the first movable base 220 move synchronously along a first direction, so as to drive the second toggle member 222 to move along the first direction. When the needle winding mechanism 11 rotates to the blanking station C, the second toggle member 222 is engaged with the first toggle block 1112 of the needle winding mechanism 11 (i.e. at least a portion of the second toggle member 222 is located in the annular groove 1113 of the first toggle block 1112), so as to drive the first toggle block 1112 of the needle winding mechanism 11 to move along the first direction. Thus, when the needle winding mechanism 11 rotates to the blanking station C and stops rotating along with the rotary table 10, at this time, the movable seat 223 and the first movable seat 220 move synchronously along the first direction, so that the second toggle piece 222 drives the first toggle piece 1112 to move along the first direction, and thereby the first needle 1111 is driven to retract along the first direction and be pulled out from the battery cell. Alternatively, the second toggle member 222 may be a roller.

Further, the second toggle piece 222 is located on the circular arc line, so that when the needle winding mechanism 11 rotates with the rotary disc 10 from the feeding station C to the winding station a, the first toggle piece 1112 can move from the second toggle piece 222 to the first toggle piece 221, and sequentially cooperate with each of the first toggle pieces 221, and is driven by the first toggle piece 221 to move along the first direction.

It should be noted that, when it is not necessary to dial the first dial 1112 while the needle winding mechanism 11 rotates with the dial 10, the second dial 222 may be used to dial the first dial 1112 to move along the first direction; when the first shifting block 1112 needs to be shifted while the needle winding mechanism 11 rotates with the turntable 10, the first shifting block 1112 can be shifted by the first shifting member 221 to move along the first direction, which is favorable for improving the compatibility of the needle winding control mechanism 2.

In an embodiment of the present invention, the needle winding control mechanism 2 further includes a first driving assembly 23 disposed on the mounting base 21, and the first driving assembly 23 is drivingly connected to the first movable base 220 to drive the first movable base 220 to move back and forth along the first direction. Thus, when the first winding needle 1111 needs to be pulled to retract or extend, the first driving assembly 23 drives the first moving base 220 to move along the first direction, so that the first pulling member 221 drives the first pulling block 1112 to move along the first direction, and further the first sliding shaft 111 drives the first winding needle 1111 to move along the first direction to extend or retract.

In the embodiment, the first driving assembly 23 includes a first driving member 231, a first lead screw 232, a first lead screw nut 233 and a first driving block 234. The first lead screw 232 is rotatably connected to the mounting base 21 around its axis, and the first driving member 231 is disposed on the mounting base 21 and is in transmission connection with the first lead screw 232 to drive the first lead screw 232 to rotate around its axis. The first lead screw nut 233 is screwed to the first lead screw 232, so that the first lead screw nut 233 can be driven to move in the axial direction of the first lead screw 232 when the first lead screw 232 rotates around its axis. The first driving block 234 is connected to the first lead screw nut 233 and the first movable base 220, that is, the first movable base 220 is fixedly connected to the first lead screw nut 233 through the first driving block 234, so that the first movable base 220 moves along the axial direction of the first lead screw 232 together with the first lead screw nut 233. It will be appreciated that the axial direction of the first lead screw 232 is parallel to the first direction described above. Alternatively, the first driving member 231 may employ a motor.

Specifically, in an embodiment, the first control assembly 22 further includes a first sliding seat 235, a first sliding block 2351 is disposed on the first sliding seat 235, a first sliding rail 213 extending lengthwise along a first direction is disposed on the mounting seat 21, and the first sliding block 2351 is slidably connected to the first sliding rail 213. The first carriage 235 is fixedly coupled to the first drive block 234 such that the first carriage 235 and the first drive block 234 move together in a first direction. In this way, the first sliding block 2351 and the first sliding rail 213 are utilized to guide the movement of the first driving block 234 along the first direction, so as to guide the movement of the first moving seat 220 and the first toggle parts 221 mounted on the first moving seat 220 along the first direction, so that the movement of the first toggle parts 221 to toggle the first toggle parts 1112, i.e. the movement of the first winding needle 1111 to extend and retract, is stable and reliable.

Further, the mounting seat 21 includes a front surface a (see fig. 4) and a back surface b (see fig. 5), the first driving assembly 23 is located on the back surface b of the mounting seat 21, and one end of the first movable seat 220 having the mounting portion 2201 is located on the front surface a of the mounting seat 21. One end of the first movable seat 220, which is away from the mounting portion 2201, extends out of the edge of the mounting seat 21 to the back b of the mounting seat 21, and is fixedly connected to the first driving block 234. In this way, the first driving assembly 23, the mounting portion 2201 and the first toggle member 221 on the mounting portion 2201 are respectively disposed on the back surface b and the front surface a of the mounting base 21, so as to avoid mutual interference and facilitate maintenance.

In an embodiment, the movable base 223 is fixedly connected to the first driving block 234, so that the movable base 223 and the first movable base 220 move back and forth along the first direction synchronously with the first driving block 234, and further drive the first toggle parts 221 and the second toggle parts 222 to move back and forth along the first direction synchronously with each other.

Further, a second sliding block 2231 is disposed on the movable seat 223, a second sliding rail 211 that lengthways extends along the first direction is disposed on the mounting seat 21, and the second sliding block 2231 is slidably connected to the second sliding rail 211, so that the second sliding block 2231 and the second sliding rail 211 are used to guide the movement of the movable seat 223 along the first direction, and further the movement of the second toggle piece 222 along the first direction is stable and reliable.

Further, the movable base 223 and the second toggle piece 222 mounted on the movable base 223 are located on the front surface a of the mounting base 21, and the first control assembly 22 further includes a fixed block 236. One end of the fixed block 236 is located on the front surface a of the mounting seat 21 and fixedly connected with the movable seat 223, and the other end of the fixed block 236 is located on the back surface b of the mounting seat 21 and fixedly connected with the first driving block 234, i.e. the movable seat 223 is fixedly connected with the first driving block 234 through the fixed block 236. Further, the mounting base 21 is provided with an escape groove 212 penetrating the front surface a and the back surface b, and the fixed block 236 is inserted into the escape groove 212. Thus, the avoiding groove 212 allows the fixing block 236 to pass through and provides a moving space for the fixing block 236 to move along the first direction.

In the embodiment of the present invention, the needle winding control mechanism 2 further includes a second control component 24, and when the needle winding mechanism 11 rotates with the rotary disc 10 to the blanking station C, the second control component 24 is configured to shift a second shifting block 1122 of the needle winding mechanism 11 to move along the first direction, so as to drive the second needle winding 1121 to retract along the first direction.

The second control assembly 24 includes a second movable seat 255, a first clamping member 241 and a second clamping member 242. The second movable base 255 is disposed on the mounting base 21 and is capable of controlled reciprocating movement along the first direction relative to the mounting base 21. The first clamping member 241 and the second clamping member 242 are disposed on the second moving seat 255, and at least one of the first clamping member 241 and the second clamping member 242 is relatively movable to a first state and a second state with respect to the other.

When the first clamping piece 241 and the second clamping piece 242 relatively move to the second state, the first clamping piece 241 and the second clamping piece 242 are arranged in a staggered manner in the first direction, so that interference caused by the first clamping piece 241 and the second clamping piece 242 when the second shifting block 1122 of the needle winding mechanism 11 moves along with the rotation of the rotary disc 10 is avoided, and the second shifting block 1122 of the needle winding mechanism 11 can smoothly rotate to the blanking station C along with the rotary disc 10. When the first clamping piece 241 and the second clamping piece 242 relatively move to the first state, the first clamping piece 241 and the second clamping piece 242 are relatively arranged in the first direction to clamp the second shifting block 1122 of the needle winding mechanism 11 rotated to the blanking station C, so that the second shifting block 1122 clamped between the first clamping piece 241 and the second clamping piece 242 can move along the first direction along with the second moving seat 255, and the second winding needle 1121 is driven to retract so as to be extracted from the battery cell.

In one embodiment, the second control assembly 24 further comprises a fixed plate 243, a movable plate 244 and a clamp driving member 245. The fixed plate 243 is mounted to the second moving base 255, and the first clamping member 241 is mounted to the fixed plate 243 such that the fixed plate 243 and the first clamping member 241 move synchronously along the first direction following the second moving base 255. The movable plate 244 is movably connected to the fixed plate 243 in a second direction crossing the first direction, and the second clamp 242 is mounted to the movable plate 244 such that the movable plate 244 and the second clamp 242 can be moved in synchronization with the fixed plate 243 following the second movable seat 255 in the first direction. The clamping driving member 245 is disposed on the second moving seat 255 and is drivingly connected to the movable plate 244 to drive the movable plate 244 to move along the second direction relative to the fixed plate 243, so as to drive the second clamping member 242 on the movable plate 244 to move along the second direction relative to the first clamping member 241 on the fixed plate 243, so that the second clamping member 242 and the first clamping member 241 are opposite or dislocated along the first direction. In this manner, the first clamping member 241 and the second clamping member 242 are switched between the above-described first state and second state by the movement of the second clamping member 242 in the second direction relative to the first clamping member 241. Alternatively, the clamp driving member 245 may employ an air cylinder.

Specifically, in the embodiment, the movable plate 244 is provided with a third sliding block 2441, and the fixed plate 243 is provided with a third sliding rail 2431 extending lengthwise along the second direction. The third slider 2441 is slidably connected to the third slide rail 2431, so that the third slider 2441 and the third slide rail 2431 are used to guide the movement of the movable plate 244 relative to the fixed plate 243 in the second direction, so that the movement of the second clamping member 242 in the second direction is stable and reliable.

In specific embodiments, the first clamping member 241 and the second clamping member 242 may adopt rollers, so that friction between the second shifting block 1122 and the first clamping member 241 and the second clamping member 242 is rolling friction, and the second shifting block 1122 can smoothly enter or push out a clamping position between the first clamping member 241 and the second clamping member 242.

Specifically, in the embodiment shown in fig. 4, the first direction is a left-right direction, and the second direction is a direction perpendicular to the paper.

In the embodiment of the present invention, the needle winding control mechanism 2 further includes a second driving assembly 25 disposed on the mounting base 21, and the second driving assembly 25 is drivingly connected to the second moving base 255 to drive the second moving base 255 to move back and forth along the first direction relative to the mounting base 21. Thus, when the second winding pin 1121 needs to be shifted to retract or extend, the second driving assembly 25 drives the second moving seat 255 to move along the first direction, so that the second shifting block 1122 is driven by the second shifting member 222 to move along the first direction, and the second winding pin 1121 is driven by the second sliding shaft 112 to move along the first direction to extend or retract.

Specifically, in the embodiment, the second driving assembly 25 includes a second driving member 251, a second lead screw 252, a second lead screw nut 253, and a second driving block 254. The second lead screw 252 is rotatably connected to the mounting base 21 around its axis, and the second driving member 251 is disposed on the mounting base 21 and is in transmission connection with the second lead screw 252 to drive the second lead screw 252 to rotate around its axis. The second lead screw nut 253 is screwed to the second lead screw 252 so that the second lead screw nut 253 can be driven to move along the axial direction of the second lead screw 252 when the second lead screw 252 rotates around the axis thereof. The second driving block 254 is connected to the second spindle nut 253 and the second moving base 255, that is, the second moving base 255 is fixedly connected to the second spindle nut 253 via the second driving block 254, so that the second moving base 255 moves along the axial direction of the second spindle 252 along with the second spindle nut 253. It will be appreciated that the axial direction of the second lead screw 252 is parallel to the first direction described above. Alternatively, the second driving member 251 may employ a motor.

In the specific embodiment, the second driving assembly 25 and the second movable base 255 are located on the back surface b of the mounting base 21. One end of the fixing plate 243 is located on the front surface a of the mounting base 21 and is used for mounting the first clamping member 241, and the other end of the fixing plate 243 penetrates out to the back surface b of the mounting base 21 through the avoiding groove 212 and is fixedly connected with the second driving block 254. The movable plate 244 is also inserted into the avoiding groove 211, and one end of the mounting base 21 located on the front surface is used for mounting the second clamping member 242, and one end of the mounting base located on the back surface b is connected to the driving end of the clamping driving member 245. In this way, the second driving assembly 25 and the first and second clamping members 241 and 242 are respectively disposed on the back surface b and the front surface a of the mounting seat 21, so as to avoid mutual interference and facilitate maintenance. It can be appreciated that the escape groove 211 provides a moving space for the fixed plate 243 and the movable plate 244 to reciprocate in the first direction.

In the embodiment of the present invention, the needle winding control mechanism 2 further includes a first detector 26 and a second detector 27 mounted on the mounting base 21. The first detector 26 is used for detecting the position of the first shifting block 1112, so as to facilitate accurate shifting of the first shifting block 1112 and improve the accuracy of extending and retracting the first winding needle 1121. The second detector 27 is used for detecting the position of the second shifting block 1122, so that accurate shifting of the second shifting block 1122 is facilitated, and the accuracy of extending and retracting the second winding needle 1111 is improved. Alternatively, the first detector 26 and the second detector 27 may employ a photoelectric sensor.

The operation of the needle winding control mechanism 2 will be described below with reference to the accompanying drawings:

initially, the winding needle mechanism 11 is located at the winding station a, the first winding needle 1111 and the second winding needle 1121 extend in a first direction to be spliced to form an integral winding needle, and a battery cell is formed by winding on the integral winding needle.

Firstly, the turntable 10 rotates around a first axis and drives the needle winding mechanism 11 to rotate from the winding station a to the rubberizing station B for rubberizing. After the rubberizing is finished, the rotary table 10 continues to rotate around the first axis, and drives the needle winding mechanism 11 to rotate from the rubberizing station B to the blanking station C, at this time, the corresponding first toggle part 221 or the second toggle part 222 is located in the annular groove 1113 of the first toggle block 1112.

Then, the clamping driving member 245 drives the movable plate 244 and the second clamping member 242 on the movable plate 244 to move in the second direction, so that the second clamping member 242 is opposite to the first clamping member 241 in the first direction, and the second shifting block 1122 is clamped between the first clamping member 241 and the second clamping member 242, i.e. the second shifting block 1122 is located between the first clamping member 241 and the second clamping member 242.

Then, the second driving assembly 25 drives the second moving seat 255 to move along the first direction, so that the first clamping member 241 and the second clamping member 242 drive the second shifting block 1122 to move along the first direction, and further the second sliding shaft 112 drives the second winding needle 1121 to retract, and at this time, the second winding needle 1121 is extracted from the battery cell.

Then, the first driving assembly 23 drives the first moving base 220 to move along the first direction, so that the first shifting member 221 or the second shifting member 222 drives the first shifting block 1112 to move along the first direction, and further the first sliding shaft 111 drives the first winding needle 1111 to retract, at this time, the first winding needle 1111 is drawn out from the electric core, and the blanking of the electric core is completed.

Then, the rotary table 10 continues to rotate around the first axis, and drives the needle winding mechanism 11 to rotate from the blanking station C to the winding station a. And when the needle winding mechanism 11 rotates to the winding station a, the first driving assembly 23 drives the first moving base 220 to move along the first direction, so that the plurality of first shifting pieces 221 are sequentially engaged with the first shifting block 1112 and drive the first shifting block 1112 to move along the first direction, and further the first sliding shaft 111 drives the first winding needle 1111 to extend out along the first direction. When the winding needle mechanism 11 reaches the winding station a, the first winding needle 1111 is also extended into position.

Then, the starting end of the tape is inserted into the first winding needle 1111, and the second winding needle 1121 is controlled to extend (the second shifting block 1122 can be shifted by using a shifting mechanism disposed at the winding station a, so that the second winding needle 1121 extends), at this time, the first winding needle 1111 and the second winding needle 1121 are spliced to form an integral winding needle, and the tape is located between the first winding needle 1111 and the second winding needle 1121.

Then, the sleeve 110 is driven to rotate by the rotation driving mechanism, so that the integral winding needle (i.e. the first winding needle 1111 and the second winding needle 1121) is driven to rotate by the first sliding shaft 111 and the second sliding shaft 112, so as to wind the tape around the integral winding needle to form the battery cell. And after the winding of the battery cell is finished, sequentially finishing the rubberizing and blanking according to the steps so as to circularly and repeatedly produce the battery cell continuously.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a book needle control mechanism, lays corresponding to the unloading station, its characterized in that, book needle control mechanism includes:

a mounting seat; and

the first control assembly comprises a first moving seat and a plurality of first stirring pieces, the first moving seat is arranged on the mounting seat and is controlled to move along a first direction relative to the first moving seat, the plurality of first stirring pieces are arranged on the first moving seat and are distributed along an arc line with a first axis as a central axis, and the first axis is parallel to the first direction;

in the process that the needle winding mechanism rotates away from the blanking station, the first poking pieces are sequentially matched with the first poking blocks of the needle winding mechanism to drive the first poking blocks of the needle winding mechanism to move in the first direction.

2. The needle winding control mechanism of claim 1, wherein the first movable base has a mounting portion extending lengthwise along the circular arc, and the first toggle members are mounted along the mounting portion.

3. The needle winding control mechanism of claim 1, wherein the first toggle member is a roller.

4. The needle winding control mechanism according to claim 1, wherein the first control assembly further comprises a movable seat disposed on the mounting seat and a second toggle member mounted on the movable seat;

the movable seat and the first movable seat synchronously move along the first direction, and when the needle winding mechanism rotates to the blanking station, the second shifting piece is matched with the first shifting block of the needle winding mechanism to drive the first shifting block of the needle winding mechanism to move along the first direction.

5. The stitch control mechanism according to any of claims 1 to 4, further comprising a first drive assembly disposed on the mounting block, the first drive assembly being drivingly connected to the first movable block.

6. The stitch control mechanism as recited in claim 5, wherein the first drive assembly comprises a first drive member, a first lead screw nut, and a first drive block;

the first lead screw is rotatably connected with the mounting seat around the axis of the first lead screw, the first driving piece is arranged on the mounting seat and is in transmission connection with the first lead screw, the first lead screw nut is in threaded connection with the first lead screw, and the first driving block is connected with the first lead screw nut and the first movable seat.

7. The needle winding control mechanism of claim 1, further comprising a second control assembly comprising a second movable base, a first clamping member, and a second clamping member;

the second movable base is arranged on the mounting base and is controlled to move along the first direction relative to the mounting base, the first clamping piece and the second clamping piece are arranged on the second movable base 255, and at least one of the first clamping piece and the second clamping piece can move to a first state and a second state relative to the other one;

when the first clamping piece and the second clamping piece move relatively to the first state, the first clamping piece and the second clamping piece are arranged relatively in the first direction so as to clamp a second shifting block of the needle winding mechanism rotating to the blanking station; when the first clamping piece and the second clamping piece move relatively to the second state, the first clamping piece and the second clamping piece are arranged in a staggered mode in the first direction.

8. The needle winding control mechanism according to claim 7, wherein the second control assembly further comprises a fixed plate, a movable plate and a clamping driving member, the fixed plate is mounted on the second movable base, the first clamping member is mounted on the fixed plate, the movable plate is movably connected to the fixed plate along a second direction, the second clamping member is mounted on the movable plate, and the clamping driving member is disposed on the second movable base and is in driving connection with the movable plate;

wherein the second direction intersects the first direction.

9. The needle winding control mechanism of claim 7, further comprising a second drive assembly disposed on the mounting block, the second drive assembly being drivingly connected to the second movable block.

10. A winding apparatus comprising the winder control mechanism of any of claims 1 to 9.

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