CN213409879U - Unwinding mechanism - Google Patents
Unwinding mechanism Download PDFInfo
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- CN213409879U CN213409879U CN202020896552.6U CN202020896552U CN213409879U CN 213409879 U CN213409879 U CN 213409879U CN 202020896552 U CN202020896552 U CN 202020896552U CN 213409879 U CN213409879 U CN 213409879U
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- deviation correcting
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Abstract
The utility model discloses an unwinding mechanism, which belongs to a pole piece die-cutting machine, and comprises a large plate, an unwinding frame arranged on the large plate, an air-expanding shaft connected to the unwinding frame in a sliding manner along the axis direction, and an unwinding assembly for driving the air-expanding shaft to unwind a pole piece, wherein the unwinding frame is provided with a first deviation correcting device, a second deviation correcting device and a third deviation correcting device, and the pole piece is conveyed to a die-cutting mechanism after being sequentially subjected to deviation correction by the first deviation correcting device, the second deviation correcting device and the third deviation correcting device; the problem to be solved is as follows: the traditional die cutting machine adopts a two-stage deviation rectifying mechanism, and because a part machining error and an assembly error exist in a roller passing or a buffer roller, the position of a pole piece cannot be very accurate before the pole piece enters a die, so that the deviation of the appearance size of a finished pole piece is large, and the risks of battery explosion and the like are increased.
Description
Technical Field
The utility model relates to a pole piece cross cutting machine especially relates to an unwinding mechanism.
Background
At present, a pole piece die cutting machine generally comprises an unwinding mechanism and a die cutting mechanism, wherein the unwinding mechanism sends a pole piece to the die cutting mechanism at a certain speed to perform die cutting.
The unwinding mechanism comprises a plurality of necessary devices such as a tension adjusting device and a buffering device, and the pole piece passes through the devices and then enters the die cutting mechanism to be radially deviated along the direction of the unwinding roller, so that a deviation correcting device is required to be added in the unwinding mechanism to correct the deviation of the pole piece.
Traditional cross cutting machine adopts the second grade mechanism of rectifying, carry out the first deviation to the pole piece after the inflatable shaft unreels promptly, and meso position department adopts to advance to rectify and rectifies and carry out the second time, the pole piece is not directly got into the mould and is carried out the cross cutting after rectifying for the second time, but through a series of roller or cache roller reentrant cross the cross cutting machine, because cross roller or cache roller and have part machining error and assembly error, the pole piece is before getting into the mould, the position of pole piece can not be very accurate, it is big to lead to finished product pole piece to have the deviation on appearance size, increase risks such as battery explosion, consequently, remain to improve.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an unwinding mechanism to solve the technical problem.
The utility model provides a technical scheme that its technical problem adopted is:
an unwinding mechanism comprises a large plate, an unwinding frame arranged on the large plate, an air expansion shaft connected to the unwinding frame in a sliding mode along the axis direction, and an unwinding assembly for driving the air expansion shaft to unwind a pole piece, wherein the unwinding frame is provided with a first deviation correcting device, a second deviation correcting device and a third deviation correcting device, and the pole piece is conveyed to a die cutting mechanism after being subjected to deviation correction sequentially through the first deviation correcting device, the second deviation correcting device and the third deviation correcting device;
the unwinding assembly is arranged on the primary deviation correcting device, and the first driving assembly is used for driving the first deviation correcting roller set and the air expansion shaft to synchronously axially slide;
the second deviation correcting device comprises a second deviation correcting roller set, a second sensor and a second driving assembly, and the second driving assembly is used for driving the second deviation correcting roller set to rotate;
the third-time deviation correcting device comprises a traction device, a third sensor and a third driving assembly, the traction device is used for clamping the pole piece and conveying the pole piece to the die cutting mechanism, and the third driving assembly is used for driving the unreeling frame and the traction device to synchronously and integrally slide on the large plate.
Through adopting above-mentioned technical scheme, utilize first deviation correcting device, second deviation correcting device and third deviation correcting device to carry out the work of rectifying to the pole piece at front setting, well setting and back setting respectively, compare in the unwinding mechanism that traditional secondary was rectified, the utility model discloses a last deviation correcting work of pole piece is accomplished to third deviation correcting device lets the pole piece accurately get into die cutting mechanism in, avoids finished product pole piece to have the deviation on appearance size big, increases risks such as battery explosion.
Preferably, the first deviation correcting device further comprises an unwinding shaft mounting seat mounted on the unwinding frame, an unwinding guide rail arranged on the unwinding shaft mounting seat and extending in a direction perpendicular to the unwinding frame, and a sliding plate in sliding fit with the unwinding guide rail;
the unwinding assembly is arranged on the sliding plate, and the first driving assembly is arranged on the unwinding shaft mounting seat;
the first driving assembly comprises a first motor, a first lead screw connected with an output shaft of the first motor and a connecting plate in threaded connection with the first lead screw, the connecting plate is fixedly connected with the sliding plate, the end part, far away from the first motor, of the first lead screw is rotatably connected to a moving end seat, and the moving end seat is installed on the unreeling shaft installation seat.
Preferably, the unwinding assembly comprises an unwinding motor, a reduction gear set and an unwinding mounting plate arranged on the sliding plate;
the unreeling frame is provided with a hollow moving shaft, the moving shaft is connected with the unreeling frame in a sliding mode through a sliding bearing, and the inflatable shaft is rotatably connected inside the moving shaft;
unreel the mounting panel and install through unreeling the synchronous pivoted of belt unreel synchronizing wheel one and unreel synchronizing wheel two, unreel the motor and connect reduction gear set, reduction gear set connects to unreel the synchronizing wheel and drives in the lump and unreel synchronizing wheel one and rotate, the one end that the axle kept away from the inflatable shaft of removal is connected and is unreeled synchronizing wheel two.
Preferably, the first deviation correcting roller group comprises a first deviation correcting follower roller, a second deviation correcting follower roller and a third deviation correcting follower roller, and the pole piece wound out of the air expansion shaft sequentially passes through the first deviation correcting follower roller, the second deviation correcting follower roller and the third deviation correcting follower roller;
the rectification roller sets are respectively positioned on three vertexes of an obtuse triangle with a horizontal bottom edge, and the rectification follower roller I and the rectification follower roller II are positioned at two end points of the bottom edge of the obtuse triangle.
Preferably, the second deviation correcting device comprises a traveling deviation correcting seat arranged on the unreeling frame and a roller mounting frame rotationally connected to the traveling deviation correcting seat through a rotating shaft, and the second deviation correcting roller set comprises two traveling deviation correcting rollers which are both mounted on the roller mounting frame;
two cam followers are arranged between the advancing deviation rectifying seat and the roller mounting rack, the roller mounting rack is provided with a convex column, and the advancing deviation rectifying seat is provided with an arc-shaped groove for the convex column to slide;
the second driving component is a second motor for driving the rotating shaft to rotate or a second electric cylinder for pushing the convex column.
Preferably, the die-cutting mechanism comprises a die-cutting bottom plate, the third deviation correcting device further comprises a frame guide rail which is arranged on the large plate and used for the unreeling frame to slide, and a traction guide rail which is arranged on the die-cutting bottom plate and used for the traction device to slide;
the third driving assembly comprises a third motor, a third lead screw connected with the third motor through a coupler and a connecting piece in threaded connection with the third lead screw and fixedly connected with the unreeling frame, and one end, far away from the third motor, of the third lead screw is rotatably connected onto a movable end base.
Preferably, the traction device comprises a traction mounting frame, a traction roller rotatably connected to the traction mounting frame, a rubber roller arranged above the traction roller and a traction motor for driving the traction roller, the traction device is fixedly connected with the unreeling frame through an L-shaped connecting block, and the rubber roller and the traction roller clamp the pole piece together and send the pole piece to the die cutting mechanism.
Preferably, the traction mounting frame is provided with a first traction synchronous wheel and a second traction synchronous wheel, an output shaft of the traction motor is connected with the first traction synchronous wheel through a speed reducer unit, the end part of the traction roller is connected with the second traction synchronous wheel, and the first traction synchronous wheel and the second traction synchronous wheel synchronously rotate through a traction belt;
the traction mounting frame is provided with a traction cylinder, a vertical plate and a longitudinal guide rail, the traction mounting frame is connected with the longitudinal guide rail in a sliding mode, two ends of the rubber roller are rotatably connected to the vertical plate, the traction cylinder drives the vertical plate to move along the direction of the longitudinal guide rail, and the rubber roller is driven to be close to or far away from the traction roller;
the traction mounting frame is provided with a transition plate, the transition plate is positioned on one side of the traction roller close to the die cutting mechanism, and the upper surface of the transition plate is tangent to the highest position of the traction roller or is 1-3cm lower than the highest position of the traction roller.
Preferably, the unreeling frame is further provided with a tape splicing platform, a tension adjusting device, a dust removing device, a caching device, a first CCD detection device and a second CCD detection device;
the pole piece is rolled out by the air expansion shaft, then sequentially passes through the first deviation correcting device, the tape splicing platform, the tension adjusting device, the dust removing device, the second deviation correcting device, the cache device and the third deviation correcting device, and is sent to the die cutting mechanism by the third deviation correcting device;
the first CCD detection device and the second CCD detection device are respectively used for detecting the double-sided condition of the pole piece before entering the third deviation correction device.
Preferably, the tension adjusting device comprises an adjusting guide rail arranged on the unreeling frame, an adjusting roller connected to the adjusting guide rail in a sliding manner, an adjusting cylinder driving the adjusting roller to slide along the adjusting guide rail, and an electric appliance proportional valve detecting air pressure change of the adjusting cylinder;
the buffer device comprises a buffer guide rail arranged on the unreeling frame, a regulating roller connected to the buffer guide rail in a sliding manner, and a buffer motor driving the regulating roller to slide along the buffer guide rail.
The utility model has the advantages that:
1. the front setting, the middle setting and the rear setting of the pole piece transmission are respectively corrected by a first correction device, a second correction device and a third correction device, so that the precision of the pole piece entering a die-cutting mechanism is improved, and the quality of the die-cut pole piece is further ensured;
2. the first-time deviation correcting device adopts the first driving assembly to control the synchronous slippage of the air expansion shaft and the first deviation correcting roller group, and adjusts the position of the pole piece during output, so as to achieve the deviation correcting effect;
3. third time deviation correcting device adopts third drive assembly control to unreel frame and draw gear and integrally removes, compares in traditional deviation correcting device, can not cause dragging of pole piece on the one hand, avoids deviation correcting device to the influence of pole piece quality, and on the other hand passes through the utility model discloses a third time deviation correcting device rectifies the back, and the pole piece is sent to die cutting mechanism immediately and is carried out cross cutting work, avoids the pole piece secondary skew behind other devices.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of the hidden large plate, the traction device and the die-cutting mechanism of the present invention;
fig. 2 is a front plan view of the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of the first deviation correcting device of the present invention;
FIG. 4 is a schematic structural diagram of a first sensor;
fig. 5 is a schematic structural view of the tension adjusting device of the present invention;
FIG. 6 is an exploded view of the second deviation correcting device of the present invention;
fig. 7 is a schematic structural diagram of the buffer memory device of the present invention;
FIG. 8 is a schematic structural view of a portion of an unwinding frame and all devices on the unwinding frame being hidden;
fig. 9 is a schematic structural diagram of a third driving assembly in the present invention;
fig. 10 is a schematic structural view of the middle traction device of the present invention.
The reference numerals in the figures are explained below:
1. a large plate;
2. unwinding the frame; 201. a first CCD detecting device; 202. a second CCD detecting device; 203. an air expansion shaft; 204. an unwinding motor; 205. a reduction gear set; 206. unwinding the mounting plate; 207. unwinding a belt; 208. unwinding a first synchronous wheel; 209. unwinding a synchronous wheel II;
3. a first deviation correcting device; 301. a first sensor; 302. a first deviation correcting roller set; 303. A unreeling shaft mounting seat; 304. unwinding a guide rail; 305. a sliding plate; 306. connecting a first plate; 307. Connecting a second plate; 308. a roll shaft; 309. a first motor; 310. a first lead screw; 311. a connecting plate; 312. a movable end seat; 313. a movable shaft; 314. a deviation rectifying follower roller I; 315. a second deviation rectifying follower roller; 316. a third deviation rectifying follower roller; 317. detecting the opening; 318. sensing a bit;
4. a tape splicing platform;
5. a tension adjusting device; 501. adjusting the guide rail; 502. a regulating roller; 503. an adjusting cylinder; 504. an electric appliance proportional valve;
6. a dust removal device;
7. a second deviation correcting device; 701. a traveling correction seat; 702. a rotating shaft; 703. a roller mounting frame; 704. a second deviation correcting roller set; 705. a second sensor; 706. a traveling deviation rectifying roller; 707. a cam follower; 708. a convex column; 709. an arc-shaped slot;
8. a cache device; 801. caching a guide rail; 802. a buffer roller; 803. caching a screw rod; 804. Caching a motor;
9. a third deviation correcting device; 901. a frame rail; 902. connecting blocks; 903. a traction device; 904. a third sensor; 905. a traction guide rail; 906. a third motor; 907. a coupling; 908. a third screw rod; 909. a connecting member; 910. moving the end seat; 911. a traction mounting rack; 912. a traction roller; 913. a rubber roller; 914. a first traction synchronous wheel; 915. a second traction synchronous wheel; 916. a traction belt; 917. a traction cylinder; 918. a vertical plate; 919. a longitudinal guide rail; 920. a transition plate; 921. a slider; 922. a support block;
10. pole pieces;
11. a die-cutting mechanism; 1101. and die cutting the bottom plate.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
An unwinding mechanism is shown in fig. 1 and 2 and comprises a large plate 1 and an unwinding frame 2, wherein the large plate 1 is horizontally arranged and fixed in position, the unwinding frame 2 is supported on the large plate 1 and used for mounting a series of necessary devices for detecting or adjusting a pole piece 10, the unwinding frame 2 is provided with an air expansion shaft 203 and an unwinding assembly, the air expansion shaft 203 can slide on the unwinding frame 2 along the axis direction, and the unwinding assembly is used for driving the air expansion shaft 203 to unwind the pole piece 10.
The unreeling frame 2 is provided with a first deviation correcting device 3, a belt splicing platform 4, a tension adjusting device 5, a dust removing device 6, a second deviation correcting device 7, a caching device 8, a first CCD detecting device 201, a second CCD detecting device 202 and a third deviation correcting device 9.
The pole piece 10 is rolled out by the air expansion shaft 203, then sequentially passes through the first deviation correcting device 3, the tape splicing platform 4, the tension adjusting device 5, the dust removing device 6, the second deviation correcting device 7, the buffer device 8 and the third deviation correcting device 9, and is sent to the die cutting mechanism 11 with the die cutting bottom plate 1101 by the third deviation correcting device 9.
The first CCD detecting device 201 and the second CCD detecting device 202 are respectively used for detecting the double-sided condition of the pole piece 10 before entering the third time deviation rectifying device 9.
The above-described respective apparatuses will be described in detail in the following order.
First, deviation correcting device 3 and unreel subassembly for the first time
As shown in fig. 1 to 3, the first deviation rectifying device 3 includes a first sensor 301 mounted on the unwinding frame 2, a first deviation rectifying roller set 302, an unwinding shaft mounting seat 303 mounted on the unwinding frame 2, an unwinding guide rail 304 disposed on the unwinding shaft mounting seat 303 and extending perpendicular to the unwinding frame 2, a sliding plate 305 slidably engaged with the unwinding guide rail 304, and a first driving assembly for driving the sliding plate 305 to slide on the unwinding guide rail 304.
The sliding plate 305 is fixedly connected with a first connecting plate 306, the first connecting plate 306 is fixedly connected with a second connecting plate 307, the unreeling frame 2 is provided with a roller shaft 308, the roller shaft 308 is connected to the unreeling frame 2 in a sliding mode through a sliding bearing, one end of the roller shaft 308 is connected with the first deviation correcting roller set 302, and the other end of the roller shaft 308 is fixed on the second connecting plate 307.
The first connecting plate 306 and the second connecting plate 307 are used for connecting the first deviation correcting roller group 302 and the sliding plate 305 and are used for adapting the distance between the deviation correcting roller group and the air expansion shaft 203; the first deviation correcting roller group 302 is in a sliding connection relationship with the unwinding frame 2 by using the roller shaft 308.
The first driving assembly comprises a first motor 309, a first screw rod 310 connected with an output shaft of the first motor 309, and a connecting plate 311 connected to the first screw rod 310 in a threaded manner, the connecting plate 311 is fixedly connected with the sliding plate 305, the end part of the first screw rod 310 far away from the first motor 309 is rotatably connected to a movable end seat 312, and the movable end seat 312 is mounted on the unreeling shaft mounting seat 303.
After the first sensor 301 gives an electric signal to the first driving motor according to the position of the pole piece 10, the first driving motor drives the connecting plate 311 and the sliding plate 305 to move along the direction of the first lead screw 310, so that the sliding plate 305 slides in the direction of the unwinding guide rail 304, and all the elements on the sliding plate 305 including the air-expanding shaft 203 and the first deflection roller group 302 move back and forth along the direction perpendicular to the unwinding frame 2.
The unwinding assembly comprises an unwinding motor 204, a reduction gear set 205 and an unwinding mounting plate 206 mounted on a sliding plate 305; the unreeling frame 2 is provided with a hollow moving shaft 313, the moving shaft 313 is connected with the unreeling frame 2 in a sliding mode through a sliding bearing, and the air expansion shaft 203 is connected inside the moving shaft 313 in a rotating mode.
On the premise of not influencing the material discharging of the unreeling assembly and the air expansion shaft 203, the unreeling assembly and the air expansion shaft 203 can be integrally moved by using the hollow moving shaft 313, and the air expansion shaft 203 can rotate and can also slide relative to the unreeling frame 2.
The unwinding mounting plate 206 is provided with a first unwinding synchronizing wheel 208 and a second unwinding synchronizing wheel 209 which synchronously rotate through an unwinding belt 207, the unwinding motor 204 is connected with a reduction gear set 205, the reduction gear set 205 is connected with the first unwinding synchronizing wheel 208 and drives the first unwinding synchronizing wheel 208 to rotate, and one end, far away from the pole piece 10, of the air expansion shaft 203 is connected with the second unwinding synchronizing wheel 209.
Through unreeling synchronizing wheel one 208 and unreeling synchronizing wheel two 209, can change the power direction of unreeling motor 204 on the one hand to make it can drive inflatable shaft 203, on the other hand moves the installation position of unreeling motor 204 and reduction gear set 205 to the top of slide axis, reduces the required space of installation by a wide margin, reduces area.
The first deviation rectifying roller group 302 comprises a first deviation rectifying follower roller 314, a second deviation rectifying follower roller 315 and a third deviation rectifying follower roller 316, and the pole piece 10 wound by the air expansion shaft 203 sequentially passes through the first deviation rectifying follower roller 314, the second deviation rectifying follower roller 315 and the third deviation rectifying follower roller 316; the rectification roller sets are respectively positioned on three vertexes of an obtuse triangle with a horizontal bottom edge, and the rectification follower rollers I314 and the rectification follower rollers II 315 are positioned at two end points of the bottom edge of the obtuse triangle.
In order to save the overall space required by the unwinding mechanism and compress the space between the elements, in the unwinding mechanism, the pole piece 10 is usually fed along three edges of the plane where the unwinding frame 2 is located, the feeding length of the pole piece 10 can be increased in a limited space, and then the tension adjusting device 5 and the buffer device 8 can be installed, so that the pole piece 10 must be steered twice or more, and the steering position is the position where the pole piece 10 is most easily damaged, therefore, the first deviation correcting device 3 adopts three follow-up deviation correcting rollers to fuse the first steering position and the first deviation correcting position of the pole piece 10, the transmission length from deviation correction to the next steering position of the pole piece 10 is increased to the maximum extent, and the influence of deviation correction on the pole piece 10 is reduced.
As shown in fig. 4, the first sensor 301 has a U-shaped detection opening 317, a strip-shaped sensing bit 318 is disposed in the detection opening 317, when one side of the pole piece 10 completely blocks the sensing bit 318 or completely separates from the sensing bit 318, the sensor respectively transmits a forward electrical signal and a reverse electrical signal to the PLC, and the PLC then controls the first driving assembly to perform corresponding operations.
The first sensor 301 is installed between the second deviation-correcting follower roller 315 and the third deviation-correcting follower roller 316, when the pole piece 10 deviates to the unwinding frame 2, one side of the pole piece 10 can completely enter the detection opening 317 of the first sensor 301 and completely shield the sensing position 318, at this time, the first sensor 301 gives a forward electric signal to the first driving assembly, the first driving assembly drives the air-inflation shaft 203 and the first deviation-correcting roller set 302 to move towards the direction far away from the unwinding frame 2, when the pole piece 10 is far away from the unwinding frame 2, one side of the pole piece 10 completely breaks away from the sensing position 318, at this time, the first sensor 301 gives a reverse electric signal to the first driving assembly, the first driving assembly drives the air-inflation shaft 203 and the first deviation-correcting roller set 302 to move towards the direction close to the unwinding frame 2, and therefore, the deviation-correcting work of the pole.
First deviation correcting device 3 adopts first drive assembly simultaneous control inflatable shaft 203 and first deviation correcting roller set 302 to move together, position when adjusting pole piece 10 output, and then reaches the effect of rectifying a deviation, compares in prior art, can not drag pole piece 10, reduces deviation correcting device to the influence of pole piece 10, improves the output quality of pole piece 10.
As shown in fig. 2 and 5, the tension adjusting device 5 includes an adjusting guide rail 501 disposed on the unwinding frame 2, an adjusting roller 502 slidably connected to the adjusting guide rail 501, an adjusting cylinder 503 driving the adjusting roller 502 to slidably move along the adjusting guide rail 501, and an electric proportional valve 504 detecting a change in air pressure of the adjusting cylinder 503.
The specific working principle is as follows: when the pole piece 10 passes through the adjusting roller 502, tension is applied to the adjusting roller 502 to drive the piston of the adjusting cylinder 503 to move in the opposite direction, a standard air pressure value in the adjusting cylinder 503 is recorded by the electric appliance proportional valve 504, when the tension degree of the pole piece 10 changes, the air pressure of the adjusting cylinder 503 changes, the electric appliance proportional valve 504 detects the change and correspondingly adjusts the output air pressure of the adjusting cylinder 503 to maintain the tension of the adjusting pole piece 10 at a fixed value.
Third, second deviation rectifying device 7
As shown in fig. 2 and fig. 6, the second deviation rectifying device 7 includes a traveling deviation rectifying base 701 disposed on the unwinding frame 2, a roller mounting bracket 703 rotatably connected to the traveling deviation rectifying base 701 through a rotating shaft 702, a second deviation rectifying roller set 704 rotatably connected to the roller mounting bracket 703, a second driving assembly for driving the roller mounting bracket 703 to rotate around the rotating shaft 702, and a second sensor 705 disposed on the unwinding frame 2.
The second set of deflection correcting rollers 704 comprises two traveling deflection correcting rollers 706, both mounted on a roller mounting bracket 703; two cam followers 707 are arranged between the advancing deviation rectifying seat 701 and the roller mounting rack 703, the roller mounting rack 703 is provided with a convex column 708, and the advancing deviation rectifying seat 701 is provided with an arc-shaped groove 709 for the convex column 708 to slide;
the second driving component is a second motor for driving the rotation shaft 702 to rotate or a second electric cylinder for pushing the convex column 708, which is not shown in the figure due to its simple structure.
The specific working principle is as follows: the rotation skew of adopting two correction rollers 706 of marcing to rectify for the second time, it offsets through tension change, second sensor 705 is fixed on big board 1, second sensor 705's structure is the same with first sensor 301 with the detection principle, second sensor 705 sends the signal for PLC according to the condition of pole piece 10 skew, PLC control second drive assembly work, make projection 708 slide in arc wall 709, the tension that makes pole piece 10 both sides received is different, pole piece 10 just can be towards the lower one side skew of tension, and then reach the effect of rectifying, the principle of rectifying of secondary deviation correcting device 7 can refer to the utility model patent that the authorization notice number is CN 202167565U.
Fourth, buffer memory 8
As shown in fig. 2 and 7, the buffer device 8 includes a buffer guide 801 disposed on the unwinding frame 2, a buffer roller 802 slidably connected to the buffer guide 801, a buffer screw 803 and a buffer motor 804 for driving the buffer roller 802 to slidably move along the buffer guide 801.
The specific working principle is as follows: the air expansion shaft 203 discharges materials continuously, when the traction mechanism pulls the materials forwards, the materials are sent to the die cutting mechanism 11, the buffer motor 804 drives the buffer screw rod 803 to rotate, the buffer roller 802 is lifted upwards, the materials buffered in the buffer roller 802 are discharged, and the speed difference between the discharging speed of the air expansion shaft 203 and the speed of the traction device 903 is compensated; when the traction device 903 stops, that is, the die cutting mechanism 11 starts die cutting, the buffer motor 804 rotates to drive the buffer screw 803 to rotate, the buffer roller 802 moves downwards, the material discharged from the air expansion shaft 203 is buffered in the buffer device 8, and the process is repeated in this way, so that the tension of the pole piece 10 is kept constant under the intermittent cutting of the die cutting mechanism 11, and the die cutting precision is ensured.
Fifth and third deviation rectifying device 9
As shown in fig. 2, 8, 9 and 10, the die-cutting mechanism 11 includes a die-cutting bottom plate 1101, the third deviation rectifying device 9 includes a frame rail 901 disposed on the large plate 1 and allowing the unwinding frame 2 to slide on the large plate 1, a third driving assembly disposed on the large plate 1, a pulling device 903 fixedly connected to the unwinding frame 2 through an L-shaped connecting block 902, a third sensor 904 disposed on the die-cutting bottom plate 1101, and a pulling rail 905 disposed on the die-cutting bottom plate 1101 and allowing the pulling device 903 to slide on the die-cutting bottom plate 1101.
The traction device 903 is used for clamping the pole piece 10 and sending the pole piece 10 to the die cutting mechanism 11, and the third driving assembly is used for driving the unreeling frame 2 and the traction device 903 to synchronously and integrally slide on the large board 1.
The die-cutting mechanism 11 itself does not belong to the utility model provides a part of unwinding mechanism, but the traction guide 905 and the third sensor 904 of deviation correcting device 9 need install on the cross cutting bottom plate 1101 of die-cutting mechanism 11 for the third time.
The third driving assembly includes a third motor 906, a third lead screw 908 connected to the third motor 906 through a coupling 907, and a connecting member 909 screwed to the third lead screw 908 and fixedly connected to the unwinding frame 2, wherein one end of the third lead screw 908 far from the third motor 906 is rotatably connected to a movable end mount 910.
The specific working principle is as follows: the positions of the large plate 1 and the die cutting mechanism 11 are kept immovable, when the edge position of the pole piece 10 completely enters the third sensor 904, the third sensor 904 sends a signal to the third driving assembly, or sends a signal to the third driving assembly through a PLC, the third driving assembly drives the third screw 908 to rotate, so that the unreeling frame 2 moves towards the direction far from the third sensor 904 along the direction of the frame guide rail 901, and the unreeling frame 2 drives the traction device 903 to move together, so that the traction device 903 simultaneously moves towards the direction far from the third sensor 904, similarly, when the edge position of the pole piece 10 cannot be sensed by the third sensor 904, the unreeling frame 2 and the traction device 903 integrally move towards the direction near the third sensor 904, so that the pole piece 10 can be adjusted to the standard position no matter which direction the pole piece 10 deviates towards.
The drawing device 903 comprises a drawing mounting frame 911, a drawing roller 912 rotatably connected to the drawing mounting frame 911, an adhesive roller 913 arranged above the drawing roller 912, and a drawing motor (not shown in fig. 9, but the position thereof can be deduced) for driving the drawing roller 912, wherein the adhesive roller 913 and the drawing roller 912 jointly clamp the pole piece 10 and feed the pole piece 10 to the die-cutting mechanism 11.
The function of the traction device 903 is to utilize the rubber roller 913 and the traction roller 912 to clamp the pole piece 10 together, when moving along with the unreeling frame 2, the traction device 903 can bring the pole piece 10 to move together, if there is no clamping force of the traction device 903, the pole piece 10 of the unreeling frame 2 is likely to be separated from the guide roller on the unreeling frame 2 in the moving process of the unreeling frame 2.
The traction mounting frame 911 is provided with a first traction synchronizing wheel 914 and a second traction synchronizing wheel 915, an output shaft of the traction motor is connected with the first traction synchronizing wheel 914 through a speed reducer set, the end part of the traction roller 912 is connected with the second traction synchronizing wheel 915, and the first traction synchronizing wheel 914 and the second traction synchronizing wheel 915 synchronously rotate through a traction belt 916.
The output direction of the traction motor can be changed by adopting the first traction synchronizing wheel 914 and the second traction synchronizing wheel 915, so that the installation position of the traction motor is positioned in the traction installation frame 911, the installation space required by elements is further reduced, in addition, the traction motor is a servo motor, the rotating speed and the direction can be controlled through Plc, and the rotating speed of the traction roller 912 is adjusted, namely the speed of the pole piece 10 entering the die cutting mechanism 11 is adjusted.
The traction mounting frame 911 is provided with a traction cylinder 917, a vertical plate 918 and a longitudinal guide rail 919, the traction mounting frame is connected with the longitudinal guide rail 919 in a sliding manner, two ends of the rubber roller 913 are connected to the vertical plate 918 in a rotating manner, the traction cylinder 917 drives the vertical plate 918 to move along the direction of the longitudinal guide rail 919, and the rubber roller 913 is driven to be close to or far away from the traction roller 912.
The traction cylinder 917 can drive the vertical plate 918 and the rubber roller 913 to move in the direction of the longitudinal guide 919, so as to change the distance between the rubber roller 913 and the traction roller 912, and by adjusting the stroke of the traction cylinder 917, the rubber roller 913 exactly presses against the traction roller 912, and when the pole piece 10 passes through the space between the rubber roller 913 and the traction roller 912, a clamping force is applied to the pole piece 10.
The traction mounting frame 911 is provided with a transition plate 920, the transition plate 920 is positioned on one side of the traction roller 912 close to the die cutting mechanism 11, and the upper surface of the transition plate 920 is tangent to the highest position of the traction roller 912 or is 1-3cm lower than the highest position of the traction roller 912.
The pole piece 10 loses clamping force after passing through the traction device 903, and the transition plate 920 ensures that the pole piece 10 is conveyed into the die-cutting mechanism 11 to be straight, namely, accurately enters a die-cutting position; the upper surface of the transition plate 920 is tangent to the highest position of the drawing roller 912 to seamlessly receive the pole piece 10, and the highest position 1-3cm lower than the highest position of the drawing roller 912 is to avoid bending of the pole piece 10 caused by that the transition plate 920 is slightly higher than the drawing roller 912 due to errors in installation.
The mechanism and principle of the third sensor 904 are the same as those of the first sensor 301, and are not described in detail here.
The four frame guide rails 901 can share the load of the unreeling frame 2, and eight sliders in total are adopted to strengthen the connection relation between the unreeling frame 2 and the frame guide rails 901; in the transportation process, two edges of the supporting block are respectively fixed with the large plate 1 and the unreeling frame 2 so as to share the gravity borne by the frame guide rail 901.
The main technical effects of the third deviation correcting device 9 are as follows: the third sensor 904 is used for giving a signal, the third driving assembly controls the unreeling frame 2 and the traction device 903 to integrally move, compared with a traditional deviation correcting device, on one hand, the pole piece 10 cannot be dragged, the influence of the deviation correcting device on the quality of the pole piece 10 is avoided, on the other hand, after the deviation is corrected by the third deviation correcting device 9, the pole piece 10 is immediately conveyed to the die cutting mechanism 11 for die cutting, and the secondary deviation of the pole piece 10 after passing through other devices is avoided;
in addition, the traditional deviation correcting device has a delay property, namely, the deviation of the pole piece 10 entering the die cutting mechanism 11 is found, the traditional deviation correcting device corrects the deviation, but the deviation correcting device and the die cutting mechanism 11 have a section of the pole piece 10 which cannot be corrected in time.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. An unwinding mechanism is characterized by comprising a large plate (1), an unwinding frame (2) arranged on the large plate (1), an air expansion shaft (203) connected to the unwinding frame (2) in a sliding manner along the axis direction, and an unwinding assembly for driving the air expansion shaft (203) to unwind a pole piece (10), wherein the unwinding frame (2) is provided with a first deviation correcting device (3), a second deviation correcting device (7) and a third deviation correcting device (9), and the pole piece (10) is conveyed to a die cutting mechanism (11) after being sequentially subjected to deviation correction by the first deviation correcting device (3), the second deviation correcting device (7) and the third deviation correcting device (9);
the first-time deviation correcting device (3) comprises a first deviation correcting roller set (302), a first sensor (301) and a first driving assembly, the unreeling assembly is arranged on the first-time deviation correcting device (3), and the first driving assembly is used for driving the first deviation correcting roller set (302) and the air expansion shaft (203) to synchronously and axially slide;
the second deviation rectifying device (7) comprises a second deviation rectifying roller set (704), a second sensor (705) and a second driving assembly, and the second driving assembly is used for driving the second deviation rectifying roller set (704) to rotate;
the third-time deviation correcting device (9) comprises a traction device (903), a third sensor (904) and a third driving assembly, wherein the traction device (903) is used for clamping the pole piece (10) and sending the pole piece (10) to the die cutting mechanism (11), and the third driving assembly is used for driving the unreeling frame (2) and the traction device (903) to synchronously and integrally slide on the large plate (1).
2. The unwinding mechanism of claim 1, wherein the first deviation correcting device (3) further comprises an unwinding shaft mounting seat (303) mounted on the unwinding frame (2), an unwinding guide rail (304) disposed on the unwinding shaft mounting seat (303) and extending in a direction perpendicular to the unwinding frame (2), and a sliding plate (305) slidably engaged with the unwinding guide rail (304);
the unwinding assembly is arranged on the sliding plate (305), and the first driving assembly is arranged on the unwinding shaft mounting seat (303);
the first driving assembly comprises a first motor (309), a first screw rod (310) connected with an output shaft of the first motor (309), and a connecting plate (311) in threaded connection with the first screw rod (310), the connecting plate (311) is fixedly connected with a sliding plate (305), the end part, far away from the first motor (309), of the first screw rod (310) is rotatably connected onto a movable end seat (312), and the movable end seat (312) is installed on a unreeling shaft installation seat (303).
3. The unwinding mechanism according to claim 2, characterized in that the unwinding assembly comprises an unwinding motor (204), a reduction gear set (210) (205), and an unwinding mounting plate (206) mounted to a sliding plate (305);
the unreeling frame (2) is provided with a hollow moving shaft (313), the moving shaft (313) is connected with the unreeling frame (2) in a sliding mode through a sliding bearing, and the air expansion shaft (203) is rotatably connected inside the moving shaft (313);
unreel mounting panel (206) and install through unreeling synchronous wheel one (208) and unreel synchronous wheel two (209) of belt (207) synchronous revolution, unreel motor (204) and connect reduction gear set (210) (205), reduction gear set (210) (205) are connected and are unreeled synchronous wheel one (208) and drive and unreel synchronous wheel one (208) and rotate, the one end that the axle was kept away from inflatable shaft (203) is removed and is connected and unreel synchronous wheel two (209).
4. The unwinding mechanism as claimed in claim 1, wherein the first deviation rectification roller set (302) comprises a first deviation rectification follower roller (314), a second deviation rectification follower roller (315) and a third deviation rectification follower roller (316), and the pole piece (10) wound by the air shaft (203) passes through the first deviation rectification follower roller (314), the second deviation rectification follower roller (315) and the third deviation rectification follower roller (316) in sequence;
the rectification roller sets are respectively positioned on three vertexes of an obtuse triangle with a horizontal bottom edge, and the rectification follower rollers I (314) and II (315) are positioned at two end points of the bottom edge of the obtuse triangle.
5. Unwinding mechanism according to claim 1, wherein the second deviation correcting device (7) comprises a traveling deviation correcting base (701) disposed on the unwinding frame (2) and a roller mounting bracket (703) rotatably connected to the traveling deviation correcting base (701) via a rotating shaft (702), and the second deviation correcting roller set (704) comprises two traveling deviation correcting rollers (706) mounted on the roller mounting bracket (703);
two cam followers (707) are arranged between the advancing deviation rectifying seat (701) and the roller mounting rack (703), the roller mounting rack (703) is provided with a convex column (708), and the advancing deviation rectifying seat (701) is provided with an arc-shaped groove (709) for the convex column (708) to slide;
the second driving component is a second motor for driving the rotating shaft (702) to rotate or a second electric cylinder for pushing the convex column (708).
6. The unwinding mechanism according to claim 1, wherein the die cutting mechanism (11) comprises a die cutting bottom plate (1101), the third deviation rectifying device (9) further comprises a frame guide rail (901) which is arranged on the large plate (1) and used for the unwinding frame (2) to slide, and a traction guide rail (905) which is arranged on the die cutting bottom plate (1101) and used for the traction device (903) to slide;
the third driving assembly comprises a third motor (906), a third screw rod (908) connected with the third motor (906) through a coupler (907), and a connecting piece (909) in threaded connection with the third screw rod (908) and fixedly connected with the unreeling frame (2), wherein one end, far away from the third motor (906), of the third screw rod (908) is rotatably connected to a movable end base (910).
7. The unwinding mechanism of claim 1, wherein the traction device (903) comprises a traction mounting frame (911), a traction roller (912) rotatably connected to the traction mounting frame (911), a rubber roller (913) arranged above the traction roller (912), and a traction motor for driving the traction roller (912), the traction device (903) is fixedly connected with the unwinding frame (2) through an L-shaped connecting block (902), and the rubber roller (913) and the traction roller (912) clamp the pole piece (10) together and send the pole piece (10) to the die cutting mechanism (11).
8. The unwinding mechanism according to claim 7, wherein the traction mounting frame (911) is provided with a first traction synchronizing wheel (914) and a second traction synchronizing wheel (915), an output shaft of the traction motor is connected with the first traction synchronizing wheel (914) through a speed reducer set, the end of the traction roller (912) is connected with the second traction synchronizing wheel (915), and the first traction synchronizing wheel (914) and the second traction synchronizing wheel (915) synchronously rotate through a traction belt (916);
the traction mounting frame (911) is provided with a traction cylinder (917), a vertical plate (918) and a longitudinal guide rail (919), the traction mounting frame is connected with the longitudinal guide rail (919) in a sliding mode, two ends of the rubber roller (913) are rotatably connected to the vertical plate (918), the traction cylinder (917) drives the vertical plate (918) to move along the direction of the longitudinal guide rail (919), and the rubber roller (913) is driven to be close to or far away from the traction roller (912);
the drawing mounting frame (911) is provided with a transition plate (920), the transition plate (920) is positioned on one side of the drawing roll (912) close to the die cutting mechanism (11), and the upper surface of the transition plate (920) is tangent to the highest position of the drawing roll (912) or is 1-3cm lower than the highest position of the drawing roll (912).
9. The unwinding mechanism of claim 1, wherein the unwinding frame (2) is further provided with a splicing platform (4), a tension adjusting device (5), a dust removing device (6), a buffer device (8), a first CCD detection device (201), and a second CCD detection device (202);
the pole piece (10) is rolled out by the air expansion shaft (203), then sequentially passes through the first deviation correcting device (3), the tape splicing platform (4), the tension adjusting device (5), the dust removing device (6), the second deviation correcting device (7), the caching device (8) and the third deviation correcting device (9), and is sent to the die cutting mechanism (11) by the third deviation correcting device (9);
the first CCD detection device (201) and the second CCD detection device (202) are respectively used for detecting the double-sided condition of the pole piece (10) before entering the third deviation rectifying device (9).
10. The unwinding mechanism according to claim 9, wherein the tension adjusting device (5) comprises an adjusting guide rail (501) disposed on the unwinding frame (2), an adjusting roller (502) slidably connected to the adjusting guide rail (501), an adjusting cylinder (503) driving the adjusting roller (502) to slide along the adjusting guide rail (501), and an electric proportional valve (504) detecting a change in air pressure of the adjusting cylinder (503);
the buffer device (8) comprises a buffer guide rail (801) arranged on the unreeling frame (2), a buffer roller (802) connected to the buffer guide rail (801) in a sliding mode, a buffer screw rod (803) and a buffer motor (804) which drive the buffer roller (802) to slide along the buffer guide rail (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020896552.6U CN213409879U (en) | 2020-05-25 | 2020-05-25 | Unwinding mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020896552.6U CN213409879U (en) | 2020-05-25 | 2020-05-25 | Unwinding mechanism |
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| Publication Number | Publication Date |
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| CN213409879U true CN213409879U (en) | 2021-06-11 |
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| CN202020896552.6U Active CN213409879U (en) | 2020-05-25 | 2020-05-25 | Unwinding mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592275A (en) * | 2022-10-10 | 2023-01-13 | 深圳市诚捷智能装备股份有限公司（Cn） | Battery tab laser cutting machine |
-
2020
- 2020-05-25 CN CN202020896552.6U patent/CN213409879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592275A (en) * | 2022-10-10 | 2023-01-13 | 深圳市诚捷智能装备股份有限公司（Cn） | Battery tab laser cutting machine |
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Address after: No. 7 Tianmuhu Avenue, Kunlun Street, Liyang City, Changzhou City, Jiangsu Province 213300 Patentee after: Jiangsu Jiatuo New Energy Intelligent Equipment Co.,Ltd. Address before: 213300 Building 1, No. 588, Chengbei Avenue, Kunlun Street, Liyang City, Jiangsu Province Patentee before: Jiangsu Zhongguancun Jiatuo new energy equipment Co.,Ltd. |
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