CN210182520U - Cylindrical button type battery cell sheet-making winding machine - Google Patents

Abstract

The utility model provides a cylindrical button type battery cell slice-making winder, which comprises a winding head, wherein the winding head comprises a body and three winding needle units distributed along the circumferential direction of the body, the front end of the body is provided with a connecting seat, the winding needle units comprise a first winding needle and a second winding needle which are coaxially arranged, and a first needle body of the first winding needle and a second needle body of the second winding needle can move in opposite directions or in opposite directions; the winding head further comprises an outward pushing needle unit, an outward pulling needle unit and a pulling and pushing needle unit, the outward pushing needle unit drives the second needle body at the winding station to move towards the first needle body, the outward pulling needle unit drives the second needle body at the blanking station to move back to the first needle body, and the pulling and pushing needle unit drives the first needle body at the blanking station to move back to or towards the second needle body. This cylindrical button-type electric core film-making winder has and takes place the advantage that warp and coiling quality is high when can avoiding button-type electric core unloading.

Description

Cylindrical button type battery cell sheet-making winding machine

Technical Field

The utility model belongs to the technical field of electric core production facility technique and specifically relates to a cylindrical button type electricity core film-making winder is related to.

Background

Lithium batteries are widely applied to industries such as notebook computers, electric tools, new energy automobiles and the like, and with the development of the industries, the demand of the lithium batteries is continuously increased, but the requirements on the lithium batteries are higher and higher. At present, the winding needle of the winding head of the winding machine for manufacturing the cylindrical battery cell slice on the market comprises a barrel body and two needle bodies arranged in the barrel body, and the two needle bodies can be connected with the barrel body in a sliding mode along the axial direction of the barrel body. When the coiled electric core needs to be unloaded from the coiling head, a first needle body of the coiling needle needs to be drawn out firstly, then a second needle body of the coiling needle is drawn out, due to the inherent structural design of the coiling needle, when the needle body is drawn out, the needle body easily drives a pole piece and a diaphragm to move together, so that the electric core after the needle body is drawn out is deformed, especially for a button type electric core, because the pole piece of the button type electric core is narrow in width, the axial thickness of the coiled electric core is thin, when the existing coil is adopted to carry out coiling processing on the button type electric core, in the process of drawing out the coiling needle, the probability of deformation of the button type electric core is higher.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a cylindrical button type electric core film-making winder that takes place to warp and coiling quality is high when can avoiding button type electric core unloading.

For the main purpose of the utility model, the utility model provides a cylindrical button type battery cell slice-making winder, which comprises a frame and a pole piece inserting and cutting device, a diaphragm feeding device, a diaphragm cutting device, a rubberizing device, a winding head, a reversing device and a blanking device which are arranged on the frame, wherein the winding head is provided with a winding station, a rubberizing station and a blanking station, the winding head comprises a body and three winding needle units which are distributed along the circumferential direction of the body, the pole piece is inserted into the cutting device and the diaphragm feeding device feeds the winding needle units at the winding station, the diaphragm cutting device is arranged at the winding station, the rubberizing device is arranged at the rubberizing station, the blanking device is arranged at the blanking station, the blanking device feeds the winding needle units at the blanking station, the reversing device drives the body to rotate, wherein, the front end of the body is provided with a connecting seat, the winding needle units comprise a first winding needle and a second winding needle, the first winding needle comprises a first barrel body and a first needle body which is slidably arranged in the first barrel body, the first barrel body is rotatably arranged on the body around the axis of the first barrel body, the second winding needle is coaxially arranged with the first winding needle, the second winding needle comprises a second barrel body and a second needle body which is slidably arranged in the second barrel body, the second barrel body is rotatably arranged on the connecting seat around the axis of the second barrel body, and the second needle body and the first needle body are oppositely arranged; the winding head further comprises an outward pushing needle unit, an outward pulling needle unit and a pulling and pushing needle unit, the outward pushing needle unit drives the second needle body at the winding station to move towards the first needle body, the outward pulling needle unit drives the second needle body at the blanking station to move back to the first needle body, and the pulling and pushing needle unit drives the first needle body at the blanking station to move back to or towards the second needle body.

It is from top to bottom visible, the structural design who rolls up the needle unit makes electric core when unloading, and the first needle body and the second needle body that roll up the needle unit can be opposite direction and remove to make pole piece, diaphragm receive opposite frictional force at electric core unloading in-process, thereby make pole piece, diaphragm atress balanced, the electric core after avoiding the unloading takes place to warp. And the outer push needle unit that sets up at the coiling station can be when needs are convoluteed pole piece and diaphragm, and the second needle body that promotes coiling station department moves to first needle body, makes second needle body and first needle body closed to carry out the centre gripping to pole piece and diaphragm. The outer needle unit of taking out that unloading station department set up is used for cooperateing with the needle unit that takes out pushes away to when electric core needs carry out the unloading, take out simultaneously second needle body and first needle body from, make electric core carry out the unloading, and avoid electric core to take out at the needle body from the in-process and take place to warp, in addition, the needle unit that takes out still accomplishes the unloading at electric core after, resets to the first needle body of unloading station department.

The cylindrical button type battery cell slice manufacturing and winding machine further comprises three motors, one motor and one winding needle unit are correspondingly arranged, the motors are mounted on the body, a second driving wheel is sleeved on a motor shaft of each motor, and the first driving wheel drives the first driving wheel of one winding needle unit which is correspondingly arranged to rotate.

It is thus clear that, adopt the first book needle of motor direct drive book needle unit to rotate, can reduce the transmission clearance effectively, response speed when making first book needle rotate is faster, guarantees the electric core quality of convoluteing out, and this drive mode can make the coiling head can satisfy the coiling requirement of higher-speed.

The winding head further comprises an electric slip ring, a rotor of the electric slip ring is coaxially arranged with the rotating axis of the body, the rotor of the electric slip ring rotates along with the body, and rotor leads of the electric slip ring are respectively electrically connected with the three motors.

It is thus clear that the electrical slip ring can avoid the cable of motor to take place to distort, knot when the body drives the motor and rotates to prevent that the cable from being twisted off.

Still further scheme is that still the cover is equipped with first gear on the first barrel, first gear is located the front end side of body, the cover is equipped with the second gear on the second barrel, it still includes the linkage subassembly to roll up the needle unit, the linkage subassembly includes mount pad and pivot, the mount pad is installed on the connecting seat, the pivot is rotationally installed on the mount pad around self axis, the pivot is on a parallel with first needle body, the first end of pivot is provided with the third gear with first gear engagement, the second end of pivot is provided with the fourth gear with second gear engagement.

It is from top to bottom visible, the linkage subassembly can make first book needle and second book needle keep synchronous, avoids at the pole piece coiling in-process, and first needle body and/or second needle body twist reverse the deformation, guarantees the colleague of the quality of coiling out electric core, improves the life of first book needle and second book needle.

Another preferred scheme is, the winding head still includes prevents moving back the needle unit, prevent moving back the end side that the needle unit is located the body, prevent moving back the needle unit and set up in coiling station department, prevent moving back the needle unit and include first fixing base, first actuating mechanism and first pusher dog subassembly, first fixing base is installed in the frame, first actuating mechanism installs on first fixing base, the execution end of first pusher dog subassembly and the first needle detachable of coiling station department are connected, the axial displacement of the execution end of first pusher dog subassembly along first needle.

It is thus clear that the needle unit of preventing moving back is used for snatching the disconnected of the directional body of first needle body of coiling station department at pole piece and diaphragm coiling in-process to the cooperation pushes away the release of needle unit to the second needle body outward, thereby avoids pole piece and diaphragm coiling in-process, and first needle body and the separation of second needle body guarantee the possibility that pole piece and diaphragm coiled.

Another preferred scheme is that the drawing and pushing needle unit is located at the tail end side of the body, the drawing and pushing needle unit is arranged at the blanking station and comprises a second fixing seat, a second driving mechanism and a second pusher dog assembly, the second fixing seat is installed on the rack, the second driving mechanism is installed on the second fixing seat, the executing tail end of the second pusher dog assembly is detachably connected with the first needle body at the blanking station, and the second driving mechanism drives the executing tail end of the second pusher dog assembly to move axially along the first needle body.

Another preferred scheme is that the winding head further comprises a third fixed seat, the third fixed seat is arranged at the second needle winding position and connected with the frame, a first guide rail and a second guide rail which are parallel to the second needle body are arranged on the third fixed seat, the outer push needle unit is arranged at the winding station and comprises a third driving component and a third pusher dog component, the third pusher dog component is slidably arranged on the first guide rail and detachably connected with the second needle body at the winding station, the third driving mechanism drives the third pusher dog component to slide along the first guide rail, the outer pull needle unit is arranged at the blanking station and comprises a fourth driving mechanism and a fourth pusher dog component, the fourth pusher dog component is slidably arranged on the second guide rail and detachably connected with the second needle body at the blanking station, and the fourth driving mechanism drives the fourth pusher dog component to slide along the second guide rail.

The feeding device comprises a rotary cylinder, a rotary seat, a first sliding seat, a first clamping jaw assembly and a fifth driving mechanism, wherein the rotary cylinder is installed on the rack and connected with the driving end of the rotary cylinder, a third guide rail is arranged in rotation, the rotary cylinder can drive the rotary seat to rotate to a feeding station, the first sliding seat is slidably connected with the third guide rail, the first clamping jaw assembly is installed on the first sliding seat, and the fifth driving mechanism drives the first sliding seat to slide along the third guide rail.

Therefore, the blanking device is used for transferring the battery cell which finishes the extraction of the needle body at the blanking station to a rear-stage device or a recovery tray.

According to a further scheme, the cylindrical button type battery cell slice winding machine further comprises a relay device, the relay device comprises a fourth fixing seat, a second sliding seat, a clamping unit, a hole burning unit, a short circuit detection unit, a material taking unit and a sixth driving mechanism, the fourth fixing seat is mounted on the rack, a fourth guide rail is arranged on the fourth fixing seat, the second sliding seat is slidably mounted on the fourth guide rail, the clamping unit is mounted on the rack and located above the second sliding seat, the clamping unit comprises a second clamping jaw assembly arranged towards the second sliding seat, the hole burning unit, the short circuit detection unit and the material taking unit are sequentially distributed on the second sliding seat along the extending direction of the fourth guide rail, the rotary cylinder can further drive the first clamping jaw assembly to feed the hole burning unit, and the sixth driving mechanism drives the second sliding seat to slide along the fourth guide rail, so that the clamping unit is positioned on the hole burning unit, The short circuit detection unit and the material taking unit move.

From the above, the relay device is used for receiving the battery cell transferred by the discharging device, and

scald the hole through scalding hole unit to this electric core and handle, carry out the short circuit detection to this electric core through short circuit detection unit, the centre gripping unit is used for assisting this electric core and scalds the hole unit, short circuit detection unit and get and remove between the material unit, and it then is used for scalding the hole and accomplish the electric core that the short circuit detected and take off from the centre gripping unit to get the material unit and then be used for getting the completion and scald the hole and accomplish the electric core that the short circuit detected, and make back level device take this electric core away when electric core passes through short circuit detection time, and when there is the short circuit problem in electric core lose into the recovery.

According to a further scheme, the cylindrical button type battery cell slice making and winding machine further comprises a blanking conveying line and a transplanting device, wherein a positioning seat is arranged on the blanking conveying line, the transplanting device comprises a driving unit and a third clamping jaw assembly, and the driving unit drives the third clamping jaw assembly to move between the material taking unit and the positioning seat.

Therefore, the transplanting device is used for taking the battery cell detected through short circuit down from the material taking unit, and transferring the battery cell to the positioning seat of the blanking conveying line, so that the blanking conveying line transfers the battery cell to a rear-stage device or a recovery tray.

Drawings

Fig. 1 is a structural diagram of the embodiment of the cylindrical button-type cell slice-making winder of the present invention with some components omitted.

Fig. 2 is a structural diagram of a winding head of the embodiment of the cylindrical button-type cell slice-making winder of the present invention.

Fig. 3 is a partial structure view of the winding needle unit of the embodiment of the cylindrical button-type cell slice winding machine of the present invention.

Fig. 4 is a first partial structure diagram of a winding head of an embodiment of the cylindrical button-type cell slice winding machine of the present invention.

Fig. 5 is an enlarged view at a in fig. 2.

Fig. 6 is a structural diagram of the drawing and pushing needle unit of the embodiment of the cylindrical button-type cell slice-making winder of the present invention, with some components omitted.

Fig. 7 is a second partial structure diagram of the winding head of the embodiment of the cylindrical button-type cell slice winding machine of the present invention.

Fig. 8 is a structural diagram of the relay device and the transplanting device of the embodiment of the cylindrical button-type cell slice-making winder of the present invention.

Fig. 9 is a structural diagram of the short circuit testing unit of the embodiment of the cylindrical button-type cell slice winding machine of the present invention, after omitting some components.

Fig. 10 is a structural diagram of a positioning seat of an embodiment of the cylindrical button-type cell slice-making winder of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 and 2, the cylindrical button-type cell slice-making winder 100 includes a frame 101, and a pole piece insertion and cutting device 102, a membrane feeding device, a membrane cutting device, a gluing device 103, a reversing device, a blanking device 6, a relay device 7, a blanking conveying line 8, a transplanting device 9, and a winding head 10, which are arranged on the frame 101.

The winding head 10 has a winding station 105, a rubberizing station 106 and a blanking station 107, the pole piece inserting and cutting device 102 and the membrane feeding device are respectively used for feeding pole pieces and loading membranes to the winding needle unit 2 of the winding station 105, and the pole piece inserting and cutting device 102 is further used for cutting the pole pieces after the pole pieces are wound at a fixed length. The separator cutting device is provided at the winding station 105, and is used for cutting the separator after the fixed-length winding is performed. The rubberizing device 103 is disposed at the rubberizing station 106, and is configured to perform rubberizing processing on a wound electric core, and the discharging device 6 is disposed at the discharging station 107, and is configured to transfer the electric core, which is rubberized at the discharging station 107, to the relay device 7.

The winding head 10 comprises a body 11, three motors 12, an electric slip ring 13, a third fixed seat 14, a winding needle unit 2, an outer push needle unit 3, an outer withdrawing needle unit 4, a withdrawing needle unit 5 and an anti-withdrawing needle unit 50. Wherein, body 11 is rotationally installed on frame 101 around self axis of rotation, and the quantity of rolling up needle unit 2 is three, and three rolling up needle unit 2 all installs on body 11, and three rolling up needle unit 2 along the circumference distribution of body 11.

Referring to fig. 3, the front end of the body 11 is provided with a connecting seat 111, and each winding needle unit 2 includes a first winding needle 21, a second winding needle 22 and a linkage assembly 23. The first winding needle 21 comprises a first barrel 211 and a first needle 212, the first barrel 211 is rotatably mounted on the body 11 around the axis of the first barrel 211, a first gear 2111 is sleeved on the first barrel 211, and the first gear 2111 is located at the front end of the body 11. The first needle 212 is slidably installed in the first barrel 211 along the axial direction of the first barrel 211, and a first pull ring 2121 is provided at the tip of the first needle 212.

The second winding needle 22 and the first winding needle 21 are coaxially arranged, and the second winding needle 22 comprises a second barrel 221 and a second needle body 222. The second cylinder 221 is rotatably mounted on the connecting seat 111 around its own axis, and the second cylinder 221 is provided with a second gear 2211. The second needle 222 is slidably installed in the second cylinder 221 along the axial direction of the second cylinder 221, the end of the second needle 222 is provided with a second pull ring 2221, and the second needle 222 is disposed opposite to the first needle 212.

The linkage assembly 23 includes a mounting seat 231 and a rotating shaft 232, and the mounting seat 231 is mounted on the connecting seat 111. The rotation shaft 232 is disposed parallel to the first needle body 212, and the rotation shaft 232 is rotatably mounted on the mounting seat 231 about its axis. A third gear 2321 and a fourth gear 2322 are respectively disposed at two ends of the rotating shaft 232, wherein the third gear 2321 is engaged with the first gear 2111 of the first cylinder 211, and the fourth gear 2322 is engaged with the second gear 2211 of the second cylinder 221.

Referring to fig. 4, three motors 12 can work independently, and one motor 12 is disposed corresponding to the winding needle unit 2, that is, one motor 12 controls one winding needle unit 2 to rotate independently. The first cylinder 211 of the first winding pin 21 is sleeved with a first driving wheel 2112, the first driving wheel 2112 is located at the tail end of the body 11, the shaft of the motor 12 is sleeved with a second driving wheel 121, and the motor 12 drives the first driving wheel 2112 of the winding pin unit 2 which is arranged oppositely to rotate through the second driving wheel 121 so as to drive the first winding pin 21 to rotate. Preferably, the first driving wheel 2112 and the second driving wheel 121 are both belt wheels, and the first driving wheel 2112 and the second driving wheel 121 are connected through a driving belt.

The stator 132 of the electrical slip ring 13 is fixedly mounted on the frame 101, the rotor 131 of the electrical slip ring 13 is fixedly connected with the body 11, and the rotor 131 of the electrical slip ring 13 rotates coaxially with the body 11. The rotor 131 wires of the electrical slip ring 13 are electrically connected with the three motors 12, respectively, so that when the body 11 rotates the motors 12 thereon, the cables of the motors 12 are not twisted and knotted, to prevent the cables from being twisted and broken.

Referring to fig. 5, the third fixing seat 14 is disposed at the second winding pin 22 and fixedly connected to the frame 101, and the third fixing seat 14 is provided with a first guide rail 141 and a second guide rail 142 parallel to the second pin 222.

The push-out needle unit 3 performs a needle pushing operation on the second needle body 222 at the winding station 105, so that the second needle body 222 moves towards the first needle body 212, and the first needle body 212 and the second needle body 222 are closed to clamp the pole piece and the diaphragm. Specifically, the outer push needle unit 3 includes a third driving mechanism 31 and a third finger assembly 32, the third finger assembly 32 is slidably mounted on the first guide rail 141, and the third finger assembly 32 is detachably connected to the second pull ring 2221 of the second winding needle 22 at the winding station 105, while the third driving mechanism 31 is used for driving the third finger assembly 32 to slide along the first guide rail 141, so that the third finger assembly 32 pushes the second needle body 222 at the winding station 105 to the first needle body 212 at the winding station 105 through the second pull ring 2221.

Wherein, the first finger assembly comprises a third sliding seat 321 and a push rod 322, the third sliding seat 321 is slidably mounted on the first guide rail 141 along the extending direction of the first guide rail 141, the push rod 322 is mounted on the third sliding seat 321 and arranged towards the second pull ring 2221 of the second needle body 222 at the winding station 105, preferably, a roller 3221 is arranged at the front end of the push rod 322, the axis of the roller 3221 is perpendicular to the axis of the second needle body 222, and the roller 3221 is abutted to the second pull ring 2221 of the second needle body 222. Because the push rod 322 is required to push the second needle body 222 at the winding station 105 during the winding process of the pole piece and the membrane, so as to prevent the second needle body 222 from retracting during the winding process of the pole piece and the membrane, and the roller 3221 is arranged on the push rod 322, so that when the winding needle unit 2 at the winding station 105 rotates, the roller 3221 can reduce the friction force contacting with the second pull ring 2221 of the second needle body 222, and the rotation of the winding needle unit 2 is smoother. The third driving mechanism 31 drives the third sliding seat 321 to slide along the first guide rail 141, and preferably, the third driving mechanism 31 is an air cylinder.

The outer needle drawing unit 4 is used for the second needle body 222 at the blanking station 107 to perform needle drawing operation, so that the second needle body 222 moves away from the first needle body 212 to cooperate with the needle drawing operation performed by the push needle unit 5 on the first needle body 212 at the blanking station 107, so that the second needle body 222 and the first needle body 212 move away from each other at the same time, and the electric core is blanked. In particular, the amount of the solvent to be used,

the external needle drawing unit 4 comprises a fourth driving mechanism 41 and a fourth finger assembly 42, the fourth finger assembly 42 is slidably mounted on the second guide rail 142, the fourth finger assembly 42 is detachably connected to the second pull ring 2221 of the second needle body 222 at the blanking station 107, and the fourth driving mechanism 41 is configured to drive the fourth finger assembly 42 to slide along the second guide rail 142, so that the fourth finger assembly 42 draws the second needle body 222 at the blanking station 107 away from the first needle body 212 at the blanking station 107 through the second pull ring 2221.

Specifically, fourth finger assembly 42 includes a fourth sliding seat 421 and a pull rod 422, fourth sliding seat 421 is slidably mounted on second rail 142 along the extending direction of second rail 142, and pull rod 422 is mounted on fourth sliding seat 421. A third claw 4221 is arranged on one end of the pull rod 422 facing the second needle body 222, the third claw 4221 is located between the connecting seat 111 at the blanking station 107 and the second pull ring 2221 of the second needle body 222, and the third claw 4221 is used for hooking the second pull ring 2221 of the second needle body 222 when the second needle body 222 at the blanking station 107 is pulled out. Preferably, an avoiding groove is formed in the second needle body 222, and the avoiding groove is used for avoiding the second pull ring 2221 of the second needle body 222 at the blanking station 107 when the fourth finger assembly 42 is reset, so as to avoid pushing the second needle body 222 to move. Preferably, the fourth driving mechanism 41 is a cylinder.

With reference to fig. 6 and 7, the push-pull pin unit 5 is located at the end of the body 11, and the push-pull pin unit 5 is disposed at the blanking station 107, and is used for cooperating with the outer push-pull pin unit 4 to blank the cell electrode at the blanking station 107. The push-pull pin unit 5 includes a second fixed base 51, a second driving mechanism 52, and a second finger assembly 53.

The second fixed seat 51 is installed on the frame 101 of the winding device, the second driving mechanism 52 is installed on the second fixed seat 51, the execution end of the second pusher dog assembly 53 is detachably connected with the first needle 212 at the blanking station 107, and the second driving mechanism 52 is used for driving the execution end of the second pusher dog assembly 53 to move along the axial direction of the first needle 212.

Specifically, the second fixing seat 51 is provided with a fifth guide rail 511, and the fifth guide rail 511 is parallel to the first needle 212. Second finger assembly 53 includes a fifth sliding seat 531, a first hinged seat 533, a second connecting rod 534, a fifth fixed seat 535, a sixth sliding seat 536, and a third connecting rod 537. The fifth sliding seat 531 is slidably connected to the fifth guide rail 511 along the extending direction of the fifth guide rail 511, and a first link 532 is disposed on the fifth sliding seat 531, and the first link 532 extends along the extending direction of the fifth guide rail 511. The second driving mechanism 52 drives the fifth sliding seat 531 to slide along the fifth guide rail 511, and preferably, the second driving mechanism 52 is a pneumatic cylinder.

The first hinge base 533 is installed on the frame 101, the middle portion of the second link 534 is hinged to the first hinge base 533, the first end of the second link 534 is hinged to the first link 532, and the second end of the second link 534 is provided with a first guide groove 5341 along the extending direction thereof.

The fifth fixing base 535 is installed on the frame 101, a sixth guide rail 5351 parallel to the first needle 212 is disposed on the fifth fixing base 535, and the sixth sliding base 536 is slidably installed on the sixth guide rail 5351 along the extending direction of the sixth guide rail 5351. The third link 537 is parallel to the first pin 212, and the third link 537 is mounted on the sixth sliding seat 536, a first end of the third link 537 is provided with a first guide 5371, the first guide groove 5341 is slidably disposed in the first guide groove 5341, and a second end of the third link 537 is provided with a second claw 5372, and the second claw 5372 is detachably engaged with the first pull ring 2121 of the first pin 212 at the blanking station 107.

The needle withdrawing prevention unit 50 is located at the tail end of the body 11, the needle withdrawing prevention unit 50 is arranged at the winding station 105 and is used for being matched with the needle pushing-out unit 3 and pushing the first winding needle 21 at the winding station 105 to the front end of the body 11 in the winding process of the pole piece and the membrane, so that the second needle body 222 at the winding station 105 is pushed out by the needle pushing-out unit 3 in a matched mode, the first needle body 212 and the second needle body 222 are prevented from being separated in the winding process of the pole piece and the membrane, and the reliability of winding of the membrane and the pole piece is guaranteed.

The needle withdrawing prevention unit 50 includes a first fixing seat, a first driving mechanism and a first finger assembly, the first fixing seat is installed on the frame 101, the first driving mechanism is installed on the first fixing seat, and an execution end of the first finger assembly is separably connected with the first needle body 212 at the winding station 105. The first drive mechanism is used to drive the actuation end of the first finger assembly to move axially along the first needle 212.

Specifically, a seventh guide rail is arranged on the first fixing seat, and the seventh guide rail is parallel to the first needle 212. First pusher dog subassembly includes seventh sliding seat, the articulated seat of second, fifth connecting rod, sixth fixing base, eighth sliding seat and sixth connecting rod.

The seventh sliding seat is connected with the seventh guide rail in a sliding manner along the extending direction of the seventh guide rail, and a fourth connecting rod is arranged on the seventh sliding seat and extends along the extending direction of the seventh guide rail. The first driving mechanism drives the seventh sliding seat to slide along the seventh guide rail, and preferably, the first driving mechanism is a cylinder.

The second is articulated to be installed on frame 101, and the middle part and the articulated seat of second of fifth connecting rod are articulated, and fifth connecting rod first end and fourth connecting rod are articulated, and the second end of fifth connecting rod is provided with the second guide way along the extending direction of self.

The sixth fixing base is installed on the rack 101, wherein the sixth fixing base and the fifth fixing base 535 can be combined into a common fixing base. An eighth guide rail parallel to the first needle body 212 is arranged on the sixth fixing seat, and the eighth sliding seat is slidably mounted on the eighth guide rail along the extending direction of the eighth guide rail. The sixth link is parallel to the first needle 212 and is mounted on the eighth sliding seat, a first end of the sixth link is provided with a second guide member slidably disposed in the second guide groove, a second end of the sixth link is provided with a first claw portion detachably engaged with the first pull ring 2121 of the first needle 212 at the winding station 105.

The reversing device is used for driving the body 11 to rotate around the rotation axis of the body 11, so that the three winding needle units 2 on the body 11 are switched among the winding station 105, the rubberizing station 106 and the blanking station 107. Specifically, the end side of the body 11 is provided with a fifth gear, and the reversing device includes a motor having a motor shaft provided with a sixth gear, the fifth gear being engaged with the sixth gear.

As shown in fig. 1, the blanking device 6 includes a rotary cylinder 61, a rotary base 62, a first sliding base 63, a first clamping jaw assembly 64 and a fifth driving mechanism 65, wherein the rotary cylinder 61 is installed on the frame 101, the rotary base 62 is connected to a driving end of the rotary cylinder 61, a third guide rail 621 is provided on the rotary base 62, the first sliding base 63 is slidably installed on the third guide rail 621 along an extending direction of the third guide rail 621, the first clamping jaw assembly 64 is installed on the first sliding base 63, the first clamping jaw assembly 64 is preferably a pneumatic clamping jaw, and the fifth driving mechanism 65 is installed on the rotary base 62 and is used for driving the first sliding base 63 to slide along the third guide rail 621.

Referring to fig. 8, the relay device 7 includes a fourth fixed base 71, a second sliding base 72, a clamping unit 73, a hot hole unit 74, a short-circuit detection unit 75, a material taking unit 76, and a sixth driving mechanism 77. The fourth fixed seat 71 is mounted on the frame 101, and the blanking device 6 is located between the blanking station 107 and the relay device 7. The fourth fixing seat 71 is provided with a fourth guide rail 711, and the fourth guide rail 711 is preferably perpendicular to the first needle 212. The second sliding seat 72 is slidably mounted on the fourth guide rail 711 along the extending direction of the fourth guide rail 711, and the sixth driving mechanism 77 is mounted on the fourth fixing seat 71 and is used for driving the second sliding seat 72 to slide along the fourth guide rail 711, preferably, the sixth driving mechanism 77 is a combination of a motor and a ball screw.

The ironing hole unit 74, the short circuit detection unit 75 and the material taking unit 76 are sequentially distributed on the second sliding seat 72 along the extending direction of the fourth guide rail 711, wherein the second sliding seat 72 is provided with a ninth guide rail 721 and a tenth guide rail 722 which are parallel to each other, and the ninth guide rail 721 is parallel to the first needle 212. The punching unit 74 includes a heater 741, a punching mechanism 742, a seventh driving mechanism 743 and a punching socket 744, the punching mechanism 742 is slidably mounted on the ninth guide 721, and the punching needle of the punching mechanism 742 penetrates the heater 741. The seventh driving mechanism 743 is installed on the second sliding seat 72 and is used for driving the needle ironing mechanism 742 to slide along the ninth guide rail 721, the seventh driving mechanism 743 is preferably a combination of a motor and a ball screw, and the needle ironing mechanism 742 preferably includes the needle ironing and a motor for driving the needle ironing to rotate around its axis. The needle of the needle pressing mechanism 742 is arranged towards the needle pressing socket 744, and the heater 741 is located between the needle pressing mechanism 742 and the needle pressing socket 744.

The rotary cylinder 61 drives the rotary seat 62 to move between the blanking station 107 and the relay device 7, and the fifth driving mechanism 65 is configured to drive the first jaw assembly 64 to move towards the winding needle unit 2 at the blanking station 107, or drive the first jaw assembly 64 to move towards the hot hole unit 74 at the relay device 7, so that the seventh driving mechanism 743 drives the hot needle of the hot needle mechanism 742 to penetrate into the battery cell and then to be inserted into the hot needle socket 744, the battery cell is subjected to hot hole processing, and in the hot hole process, the motor of the hot needle mechanism 742 drives the hot needle to rotate.

Referring to fig. 9, the short circuit detecting unit 75 includes a supporting base 751, two detecting mechanisms 752 and two eighth driving mechanisms 753, the supporting base 751 is located between the two detecting mechanisms 752, the two detecting mechanisms 752 are slidably connected with the tenth guide rail 722, the detecting mechanisms 752 include chucks 7521, conductive rods 7523 and ninth sliding bases 7524, each jaw of the chucks 7521 is provided with a clamping block 7522, the chucks 7521 drive all the clamping blocks 7522 to form a containing cavity, the conductive rods 7523 are installed on the chucks 7521, the conductive rods 7523 are located in the containing cavity, the conductive rods 7523 are adjacent to each clamping block 7522, the chucks 7521 are installed on the ninth sliding bases 7524, the ninth sliding bases 7524 are slidably installed on the tenth guide rail 722, the conductive rods 7523 of the two detecting mechanisms are oppositely arranged, an output end of one eighth driving mechanism 753 is connected with the ninth sliding base 7524 of one detecting mechanism 752, the eighth driving mechanism 753 drives the detecting mechanism 752 to slide along the tenth guide rail 752, in the process of detecting the short circuit of the battery cell, the two eighth driving mechanisms 753 respectively drive the two detection mechanisms 752 to move oppositely, and after the detection mechanisms 752 move to a set position, the chuck 7521 drives all the clamping blocks 752 to move towards the conducting rod 7523, so that the lugs of the battery cell are pressed on the conducting rod 7523. Wherein the eighth drive mechanism 753 is preferably a pneumatic cylinder and the take-off unit 76 is a pneumatic gripper.

The clamping unit 73 is installed on the machine frame 101, the clamping unit 73 is located above the second sliding seat 72, the clamping unit 73 includes two second jaw assemblies 731 arranged towards the second sliding seat 72 and a ninth driving mechanism 732 for driving the two second jaw assemblies 731 to move, the second jaw assemblies 731 are preferably pneumatic jaws, the first second jaw assembly 731 is located between the hole ironing unit 74 and the short-circuit detection unit 75, and the second jaw assembly 731 is located between the short-circuit detection unit 75 and the material taking unit 76.

The transplanting device 9 is arranged between the relay device 7 and the blanking conveying line 8, the transplanting device 9 comprises a seventh fixed seat 91, a driving unit 92 and a third clamping jaw assembly 93, wherein the seventh fixed seat 91 is fixedly connected with the rack 101, the driving unit 92 is installed on the seventh fixed seat 91, the driving unit 92 is used for driving the third clamping jaw assembly 93 to move between the material taking unit 76 and the blanking conveying line 8, and the third clamping jaw assembly 93 is preferably a pneumatic clamping jaw.

Referring to fig. 10, the blanking line 8 includes a conveyor 81 and a positioning seat 82. Positioning seat 82 includes connecting portion 821, location portion 822 and supporting part 823, connecting portion 821 installs on conveyer 81's conveying belt, location portion 822 installs on connecting portion 821, the middle part of location portion 822 has the chamber of holding, hold the chamber from the bottom surface setting of the vertical connecting portion 821 in top of location portion 822, the cross section that holds the chamber is circular setting, supporting part 823 sets up in holding the intracavity, supporting part 823 extends along the axial orientation that holds the chamber opening of chamber, first distance between the top of supporting part 823 and the connecting portion 821 is less than the top of location portion 822 and the second distance between connecting portion 821, and form between the inner wall of supporting part 823 and holding the chamber and keep away vacancy 824, keep away vacancy 824 and encircle in the circumferencial direction of supporting part 823. Hold the chamber and be used for holding at least partly electric core to fix a position electric core, electric core place in when holding the chamber, the axial direction of electric core is on a parallel with the axial that holds the chamber, and supporting part 823 then supports electric core, holds electric core, and cooperation supporting part 823 and hold the utmost point ear of keeping away that the space 824 formed between the chamber protects electric core, avoids the utmost point ear of electric core to take place to buckle, warp.

Further, a guide surface 825 is provided at the opening of the receiving chamber, and the guide surface 825 extends from the opening of the receiving chamber obliquely toward the bottom of the receiving chamber and the supporting portion 823. The opening of the receiving chamber is provided with a guide surface 825, and the guide surface 825 extends from the opening of the receiving chamber obliquely toward the bottom of the receiving chamber and the supporting portion 823.

Preferably, the positioning portion 822 is provided with two or more slots 826, the two or more slots 826 are uniformly distributed along the circumferential direction of the positioning portion 822, the slots 826 extend from the top of the positioning portion 822 to the connecting portion 821 along the axial direction of the accommodating cavity, and the slots 826 penetrate through the positioning portion 822 along the radial direction of the accommodating cavity. The slot 826 is used to accommodate a clamping jaw of the third clamping jaw assembly 93, so that when the cell is taken out and/or placed in the third clamping jaw assembly 93, the clamping jaw of the third clamping jaw assembly 93 does not collide with the positioning portion 822, thereby protecting the cell, the positioning seat 82, and the third clamping jaw assembly 93.

The operation of the cylindrical button-type cell slice winding machine 100 is described below with reference to fig. 1 to 10:

when the pole piece and the diaphragm need to be wound, the pole piece inserting and cutting unit and the diaphragm feeding unit respectively transfer the pole piece and the diaphragm to the first needle body 212 of the first winding needle 21 of the winding tool. Subsequently, the pole piece is inserted into the cutting unit and the diaphragm conveying unit for resetting.

Then, the third driving mechanism 31 of the outer push needle unit 3 drives the third finger assembly 32 to push the second needle 222 at the winding station 105 toward the front end of the body 11, so that the first needle 212 and the second needle 222 at the winding station 105 are closed to clamp the pole piece and the diaphragm, and the third driving mechanism 31 controls the third finger assembly 32 to be kept in the push-out position. Meanwhile, the first driving mechanism of the anti-withdrawal needle unit 50 drives the first pusher dog assembly to move towards the first needle body 212 at the winding station 105, so as to support the first needle body 212, and the first needle body 212 and/or the second needle body 222 are/is prevented from returning in the pole piece and diaphragm winding process by matching with the outward pushing needle unit 3, so that the winding quality of the battery cell is ensured.

Then, the motor 12 at the winding station 105 drives the winding needle unit 2 at the station to wind the pole piece and the diaphragm, and after the winding of the set length is completed, the pole piece is inserted into the cutting unit and the diaphragm cutting unit to respectively cut the pole piece and the diaphragm. Subsequently, the third driving mechanism 31 of the outer push needle unit 3 drives the third finger assembly 32 to reset, and the first driving mechanism of the anti-retreat needle unit 50 drives the first finger assembly to reset, so as to release the pushing of the second needle body 222 and the first needle body 212.

Then, the reversing device drives the body 11 to rotate by a station, so that the battery cell wound at the winding station 105 is transferred to the rubberizing station 106, and the rubberizing unit performs rubberizing treatment on the wound battery cell. When in rubberizing, the motor 12 at the rubberizing station 106 drives the first winding needle 21 of the station to rotate. When the rubberizing unit is used for rubberizing the battery cell, the pole piece inserting and cutting unit, the diaphragm conveying unit, the outer push needle unit 3 and the needle withdrawal prevention unit 50 at the winding station 105 repeat the above operations.

After the battery cell is subjected to rubberizing treatment by the rubberizing unit, the reversing device drives the body 11 to rotate by one station again, so that the battery cell subjected to rubberizing at the rubberizing station 106 is transferred to the discharging station 107 for discharging treatment. During blanking, the fourth driving mechanism 41 of the external drawing needle unit 4 drives the fourth finger assembly 42 to draw the second needle body 222 at the blanking station 107 away from the first needle body 212, and simultaneously, the second driving mechanism 52 of the drawing needle unit 5 drives the second finger assembly 53 to draw the first needle body 212 at the blanking station 107 away from the second needle body 222, so that the first needle body 212 and the second needle body 222 move in opposite directions at the same time, and then, the electrical core at the blanking station 107 is taken away by the blanking device 6. Then, the fourth driving mechanism 41 of the external withdrawal needle unit 4 drives the fourth finger assembly 42 to reset, the fourth finger assembly 42 does not operate the second needle body 222, and simultaneously, the second driving mechanism 52 of the withdrawal and push needle unit 5 drives the second finger assembly 53 to reset, so that the first needle body 212 is reset.

After the battery core is taken down by the blanking device 6, the battery core is transferred to the relay device 7, the hole-ironing unit 74 of the relay device 7 is used for ironing the battery core, the short-circuit detection unit 75 is used for short-circuit detection of the battery core, and finally the material-taking unit 76 is used for clamping the battery core after the short-circuit detection is completed.

The specific working flow of the relay device is as follows:

the blanking device 6 takes the electric core down and transfers the electric core to the hot hole unit 74, so that the seventh driving mechanism 743 drives the hot needle mechanism 742 to move towards the electric core along the ninth guide rail 721, and the hot needle of the hot needle mechanism 742 is inserted into the hot needle socket 744 after penetrating into the electric core, so as to carry out hot hole processing on the electric core.

After the hole ironing treatment of the battery cell is completed, the blanking device 6 loosens the clamp of the battery cell and returns to the blanking station to prepare for clamping and taking off the next battery cell. The sixth driving mechanism 77 drives the second sliding seat 72 to slide along the fourth guide rail 711, so that the ironing hole unit 74 moves to the first second clamping jaw assembly 731 of the clamping unit 73, at this time, the short-circuit detection unit 75 moves to the second clamping jaw assembly 731 of the clamping unit 73, and the material taking unit 76 moves to the transplanting device 9.

Next, the ninth driving mechanism 732 drives the first second jaw assembly 731 to move to the ironing hole unit 74, and the second jaw assembly 731 is simultaneously moved to the short circuit detecting unit 75. Next, the first second clamping jaw assembly 731 clamps the electric core on the hot hole unit 74, and at this stage, if the short circuit detection unit 75 has the electric core, the second clamping jaw assembly 731 clamps the electric core on the short circuit detection unit 75. Subsequently, the seventh driving mechanism 743 drives the needle scalding mechanism 742 to move back to the cell along the ninth guide rail 721, so that the needle scalding of the needle scalding mechanism 742 is separated from the needle scalding socket 744 and the cell to reset, the chuck 7521 drives all the clamping blocks 752 to reset, and the two eighth driving mechanisms 753 respectively drive the two detection mechanisms 752 to move back to back for resetting.

Then, the ninth driving mechanism 732 drives the first second clamping jaw assembly 731 to drive the battery cell thereon to reset, and simultaneously drives the second clamping jaw assembly 731 to drive the battery cell thereon to reset. Next, the sixth driving mechanism 77 drives the second sliding seat 72 to slide along the fourth guide rail 711, so that the second sliding seat 72 drives the hot hole unit 74 and the short circuit detection unit 75 thereon to reset.

After the second sliding seat 72 is reset, the blanking device 6 transfers the second electrical core to the hole ironing unit 74 and repeatedly performs hole ironing, and at the same time, the ninth driving mechanism 732 drives the two second jaw assemblies 731 to move again, so that the first second jaw assembly 731 moves to the short-circuit detection unit 75, then the short-circuit detection unit 75 performs short-circuit detection on the electrical core that has been subjected to hole ironing on the first second jaw assembly 731, that is, the two eighth driving mechanisms 753 of the short-circuit detection unit 75 respectively drive the two detection mechanisms 752 to move in opposite directions, after the detection mechanisms 752 move to a set position, the chuck 7521 drives all clamping blocks 752 to move to the conductive bar 7523, and if the second jaw assembly 731 clamps an electrical core at this time, the tab of the electrical core is pressed on the conductive bar 7523, so as to perform short-circuit detection on the electrical core. And the second jaw assembly 731 is moved to the material taking unit 76 at the same time, so that the material taking unit 76 grips the cell subjected to the short circuit detection on the second jaw assembly 731.

Next, the first second jaw assembly 731 releases the gripping of the cell on the short circuit detection unit 75, the second jaw assembly 731 releases the gripping of the cell on the take-out unit 76, and the ninth driving mechanism 732 drives the first second jaw assembly 731 to reset and simultaneously drives the second jaw assembly 731 to reset.

And then, starting the work flow of the circulating relay device from the position where the hole ironing treatment of the battery cell is finished.

When the above material taking unit 76 moves to the transplanting device 9, the driving unit 92 of the transplanting device 9 drives the third clamping jaw assembly 93 to move to the material taking unit 76, so as to take the electric core on the material taking unit 76 down, and then the driving unit 92 drives the third clamping jaw assembly 93 to move to the positioning seat 82 of the blanking conveying line 8, so as to place the electric core on the positioning seat 82, so that the blanking conveying line 8 transfers the electric core to a later-stage device or a recovery tray.

To sum up, the utility model provides a cylindrical button type electricity core film-making winder takes place to warp and the high advantage of coiling quality when having the unloading of avoiding button type electricity core.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims (10)

1. Cylindrical button-type electricity core film-making winder, include the frame and install pole piece in the frame inserts cutting device, send diaphragm device, surely diaphragm device, rubberizing device, coiling head, switching-over device and unloader, the coiling head has coiling station, rubberizing station and unloading station, the coiling head includes the body and follows the three book needle unit that body circumference distributes, the pole piece inserts cutting device send diaphragm device to coiling station department coil needle unit material loading, surely diaphragm device sets up coiling station department, the rubberizing device sets up rubberizing station department, unloader sets up unloading station department, unloader is right the coil needle unit unloading of unloading station department, the switching-over device drive the body rotates its characterized in that:

the front end of body is provided with the connecting seat, it includes to roll up the needle unit:

the first winding needle comprises a first barrel body and a first needle body which is slidably arranged in the first barrel body, and the first barrel body is rotatably arranged on the body around the axis of the first barrel body;

the second winding needle is coaxially arranged with the first winding needle and comprises a second barrel and a second needle body which is slidably arranged in the second barrel, the second barrel is rotatably arranged on the connecting seat around the axis of the second barrel, and the second needle body and the first needle body are oppositely arranged;

the winding head further comprises:

an outer push-pin unit that drives the second pin at the winding station to move toward the first pin;

the outer needle drawing unit drives the second needle body at the blanking station to move back to the first needle body;

and the push-pull needle unit drives the first needle body at the blanking station to move back to or towards the second needle body.

2. The cylindrical button-type cell sheet-making winder according to claim 1, characterized in that:

the first cylinder is sleeved with a first driving wheel, and the first driving wheel is positioned at the tail end side of the body;

the winding head further comprises three motors, one motor and one winding needle unit are correspondingly arranged, the motors are installed on the body, a second driving wheel is sleeved on a motor shaft of each motor, and the first driving wheel drives the corresponding winding needle unit to rotate.

3. The cylindrical button-type cell sheet-making winder according to claim 2, characterized in that:

the winding head further comprises an electric slip ring, a rotor of the electric slip ring is coaxially arranged with the rotating axis of the body, the rotor of the electric slip ring rotates along with the body, and rotor leads of the electric slip ring are electrically connected with the three motors respectively.

4. The cylindrical button-type cell sheet-making winder according to claim 2, characterized in that:

the first cylinder is further sleeved with a first gear, the first gear is located on the front end side of the body, and the second cylinder is sleeved with a second gear;

the needle unit still includes the linkage subassembly, the linkage subassembly includes:

the mounting seat is mounted on the connecting seat;

the pivot, the pivot is rotationally installed around the axis of self on the mount pad, the pivot is on a parallel with first needle body, the first end of pivot be provided with first gear engagement's third gear, the second end of pivot be provided with second gear engagement's fourth gear.

5. The cylindrical button-type cell sheet-making winder according to claim 1, characterized in that:

the winding head still includes prevents moving back the needle unit, prevent moving back the needle unit and be located the terminal side of body, prevent moving back the needle unit set up in coiling station department, prevent moving back the needle unit and include:

the first fixed seat is mounted on the rack;

the first driving mechanism is arranged on the first fixed seat;

the executing tail end of the first pusher dog assembly is detachably connected with the first needle body at the winding station, and the first driving mechanism drives the executing tail end of the first pusher dog assembly to move along the axial direction of the first needle body.

6. The cylindrical button-type cell sheet-making winder according to claim 1, characterized in that:

the push-pull needle unit is arranged at the tail end side of the body, the push-pull needle unit is arranged at the blanking station, and the push-pull needle unit comprises:

the second fixed seat is mounted on the rack;

the second driving mechanism is arranged on the second fixed seat;

the execution tail end of the second pusher dog component is separably connected with the first needle body at the blanking station, and the second driving mechanism drives the execution tail end of the second pusher dog component to move along the axial direction of the first needle body.

7. The cylindrical button-type cell sheet-making winder according to claim 1, characterized in that:

the winding head further comprises a third fixed seat, the third fixed seat is arranged at the second winding needle and connected with the rack, and a first guide rail and a second guide rail which are parallel to the second needle body are arranged on the third fixed seat;

the outward pushing needle unit is arranged at the winding station and comprises a third driving component and a third pusher dog component, the third pusher dog component is slidably arranged on the first guide rail, the third pusher dog component is detachably connected with the second needle body at the winding station, and the third driving mechanism drives the third pusher dog component to slide along the first guide rail;

the outer needle drawing unit is arranged at the blanking station and comprises a fourth driving mechanism and a fourth pusher dog component, the fourth pusher dog component is slidably mounted on the second guide rail and detachably connected with the second needle body at the blanking station, and the fourth driving mechanism drives the fourth pusher dog component to slide along the second guide rail.

8. The cylindrical button-type cell sheet winding machine according to any one of claims 1 to 7, characterized in that:

the blanking device comprises:

the rotary cylinder is mounted on the rack;

the rotary seat is connected with the driving end of the rotary cylinder, a third guide rail is arranged on the rotary seat, and the rotary cylinder can drive the rotary seat to rotate to the blanking station;

a first sliding seat slidably connected with the third guide rail;

a first jaw assembly mounted on the first slide block;

and the fifth driving mechanism drives the first sliding seat to slide along the third guide rail.

9. The cylindrical button-type cell sheet-making winder according to claim 8, characterized in that:

cylindrical button-type electric core film-making winder still includes relay, relay includes:

the fourth fixing seat is mounted on the rack, and a fourth guide rail is arranged on the fourth fixing seat;

a second sliding seat slidably mounted on the fourth guide rail;

the clamping unit is arranged on the machine frame and is positioned above the second sliding seat, and the clamping unit comprises a second clamping jaw assembly arranged towards the second sliding seat;

the hole ironing unit, the short circuit detection unit and the material taking unit are sequentially distributed on the second sliding seat along the extending direction of the fourth guide rail, and the rotary cylinder can also drive the first clamping jaw assembly to feed materials to the hole ironing unit;

and the sixth driving mechanism drives the second sliding seat to slide along the fourth guide rail, so that the clamping unit moves among the hole ironing unit, the short circuit detection unit and the material taking unit.

10. The cylindrical button-type cell sheet-making winder according to claim 9, characterized in that:

cylindrical button-type electricity core film-making winder still includes:

the blanking conveying line is provided with a positioning seat;

the transplanting device comprises a driving unit and a third clamping jaw assembly, and the driving unit drives the third clamping jaw assembly to move between the material taking unit and the positioning seat.

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