Pole piece die cutting device

Abstract

The utility model discloses a pole piece die cutting device which comprises an unwinding mechanism, a feeding mechanism, a detecting mechanism and a die cutting mechanism, a pole piece material roll is placed on the unwinding mechanism, the unwinding mechanism unwinds the pole piece material roll to the feeding mechanism, the feeding mechanism drives a pole piece to be conveyed to the die cutting mechanism, and the detecting mechanism detects the pole piece material roll to the die cutting mechanism. The feeding mechanism comprises a driving roller, a feeding main plate and a belt wound on the driving roller and the feeding main plate, the driving roller and the unwinding mechanism are arranged in parallel, the feeding main plate is provided with a fixing part used for controlling deviation of the belt, and the detection mechanism is used for detecting the state of a pole piece. And the die cutting mechanism is used for carrying out die cutting on the pole piece. The fixing pin for fixing the feeding mechanism is arranged to fix the position of the belt, so that the belt is prevented from deviating to drive the pole piece to move, and the detection mechanism is prevented from reporting errors all the time to affect the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium ion battery, especially to a pole piece die cutting device. BACKGROUND

[0002] Lithium ion battery is a new generation of green high-energy battery with excellent performance, and has become one of the focuses of high-tech development. Lithium ion battery has the following characteristics: high voltage, high capacity, low consumption, no memory effect, no pollution, small size, small internal resistance, less self-discharge, and more cycle times. Due to the above characteristics, lithium ion battery is widely used in mobile phones, notebook computers, tablet computers and many other civilian and military fields.

[0003] At present, in the lithium battery industry, the pole piece needs to be die cut before the next process. The pole piece is usually transported by auxiliary feeding belt mechanism before being transported to the die cutting machine station. During the pole piece conveying process, the pole piece is prone to position deviation, and a detection mechanism is usually provided to detect whether the pole piece deviates to ensure that the position of the pole piece transported to the die cutting machine station is correct. However, the pole piece unwinding mechanism and the auxiliary feeding belt mechanism belt are not parallel during the transportation process, the auxiliary feeder will be displaced, which will cause the belt to deviate easily, so that the position of the pole piece transported to the belt changes all the time, and the detection mechanism will always report errors, which will affect the production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiency in prior art, and provides a pole piece die cutting device.

[0005] The utility model aims at overcoming the deficiency in prior art, and provides a pole piece die cutting device.

[0006] A pole piece die cutting device, comprising: a unwinding mechanism, a feeding mechanism, a detection mechanism and a die cutting mechanism, the pole piece roll is placed on the unwinding mechanism, the unwinding mechanism unwinds the pole piece roll to the feeding mechanism, the feeding mechanism drives the pole piece to be transported to the die cutting mechanism, the feeding mechanism includes a driving roller, a feeding main plate and a belt wound on the driving roller and the feeding main plate, the driving roller is arranged in parallel with the unwinding mechanism, the feeding main plate is provided with a fixing piece for controlling the belt deviation, the detection mechanism is used for detecting the state of the pole piece, and the die cutting mechanism is used for die cutting the pole piece.

[0007] In one embodiment, a fixing plate is arranged between the driving roller and the feeding main plate, two ends of the driving roller are respectively provided with connecting rods connected with two outer sides of the fixing plate, one end of the feeding main plate towards the driving roller is connected with the fixing plate, and the fixing piece is used for fixing the feeding main plate and the fixing plate.

[0008] In one of the embodiments, the feeding main plate is provided with a groove on the side facing the fixed plate, the groove is adapted to the width of the fixed plate, and the side of the fixed plate facing the groove is accommodated in the groove.

[0009] In one of the embodiments, the fixing member is a fixing pin, the fixing pin passes through the feeding main plate and the fixed plate from the outside of the feeding main plate, and the feeding main plate is provided with the fixing pin on both sides of the fixed plate.

[0010] In one of the embodiments, the feeding main plate and the fixed plate are provided with baffles on both sides, and the belt is located between the baffles of the fixed plate and the feeding main plate.

[0011] In one of the embodiments, a compression roller is fixed above the fixed plate, and the compression roller is used for pressing the pole piece transported onto the belt.

[0012] In one of the embodiments, the unwinding mechanism includes an unwinding roller and a feeding roller, the unwinding roller is used for placing a pole piece roll, the feeding roller is used for carrying the unwound pole piece, the feeding roller is arranged in parallel with the driving roller, and the feeding roller transports the pole piece onto the belt.

[0013] In one of the embodiments, the detection mechanism is a CCD image detection mechanism, and the detection mechanism is located on the side of the feeding main plate close to the die-cutting mechanism.

[0014] In one of the embodiments, the die-cutting mechanism includes an upper die and a lower die.

[0015] In one of the embodiments, a control mechanism is further included, and the control mechanism is electrically connected with the feeding mechanism, the detection mechanism and the die-cutting mechanism.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The pole piece die-cutting device fixes the position of the belt by the fixing pin of the fixed feeding mechanism, prevents the belt from moving and affecting the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments.

[0019] Figure 1 The structure diagram of the pole piece die-cutting device is provided.

[0020] Figure 2The utility model provides a kind of pole piece die cutting device in the structure schematic diagram of feeding main plate.

[0021] ILLUSTRATIONS:10, unwinding mechanism;11, unwinding roller;12, feeding roller;20, feeding mechanism;21, driving roller;22, feeding main plate;221, groove;222, perforation;23, belt;24, fixed plate;25, connecting rod;26, baffle;30, detection mechanism;40, die cutting mechanism;41, die cutting upper die;42, die cutting lower die;50, pole piece roll;60, fixed pin. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings.

[0023] A kind of pole piece die cutting device, refer to Figure 1 , including unwinding mechanism 10, feeding mechanism 20, detection mechanism 30 and die cutting mechanism 40, pole piece roll 50 is placed on unwinding mechanism 10, unwinding mechanism 10 unwinds pole piece roll 50 to feeding mechanism 20 on.Pole piece is transported to die cutting mechanism 40 by feeding mechanism 20, detection mechanism 30 is used to detect the state of pole piece, die cutting mechanism 40 is used to carry out die cutting operation to pole piece.Feeding mechanism 20 includes driving roller 21, feeding main plate 22 and belt 23 around driving roller 21 and feeding main plate 22, driving roller 21 is arranged in parallel with unwinding mechanism 10, and the pole piece unwound by unwinding mechanism 10 moves to feeding main plate 22 by belt 23 on driving roller 21.Fixing piece for controlling the offset of belt 23 is provided on feeding main plate 22, and the fixing piece is used to fix the position of feeding main plate 22, to prevent the position offset of pole piece transported to feeding main plate 22 and make detection mechanism 30 always error.It needs to be explained that fixed plate 24 is provided between driving roller 21 and feeding main plate 22, and connecting rod 25 connected with the two outer sides of fixed plate 24 is respectively provided at both ends of driving roller 21, and one end of feeding main plate 22 towards driving roller 21 is connected with fixed plate 24, and the fixing piece fixes feeding main plate 22 and fixed plate 24 to fix the position of driving roller 21, so that the position of belt 23 will not be offset.One end of driving roller 21 is provided with driving part, and the driving part controls the rotation of driving roller 21 to transmit belt 23 transmission, and in the embodiment, the driving part is motor.In the embodiment, the pole piece die cutting device further includes rack, which is not shown in the figure, and unwinding mechanism 10, feeding mechanism 20, detection mechanism 30 and die cutting mechanism 40 are all fixed on the rack.

[0024] Refer to Figure 1 And Figure 2The side of the feeding main plate 22 facing the fixed plate 24 is provided with a groove 221, the groove 221 is matched with the width of the fixed plate 24, and the side of the fixed plate 24 facing the groove 221 is accommodated in the groove 221. The fixing member is a fixing pin 60, the fixing pin 60 is sequentially arranged through the feeding main plate 22 and the fixed plate 24 from the outside of the feeding main plate 22, so as to fixedly connect the fixed plate 24 and the feeding main plate 22, thereby fixing the transmission position of the belt 23. The two outer sides of the feeding main plate 22 relative to the fixed plate 24 are provided with the fixing pin 60, so that the two sides of the fixed plate 24 are fixedly connected with the two sides of the feeding main plate 22 respectively. It should be noted that the fixing pin 60 is arranged through the feeding main plate 22 and the fixed plate 24 accommodated in the groove 221, and the feeding main plate 22 and the fixed plate 24 are both provided with a through hole 222 for the fixing pin 60 to pass through, and the fixing pin 60 is arranged in the through hole 222 of the feeding main plate 22 and the fixed plate 24.

[0025] Further, referring to Figure 1 , the two outer sides of the feeding main plate 22 and the fixed plate 24 are provided with a baffle 26, the belt 23 is located between the two baffle 26 of the fixed plate 24 and the feeding main plate 22, the baffle 26 limits the activity range of the belt 23 on the fixed plate 24 and the feeding main plate 22, so that the belt 23 is not easy to deviate.

[0026] Referring to Figure 1 , the upper side of the fixed plate 24 is provided with a compression roller, the compression roller is fixed on the upper side of the fixed plate 24, and the compression roller is used for pressing the pole piece transported to the belt 23, so that the pole piece transported to the die cutting mechanism 40 will not be bent.

[0027] Further, referring to Figure 1 , the unwinding mechanism 10 includes an unwinding roller 11 and a feeding roller 12, the unwinding roller 11 is used for placing the pole piece roll 50, and the feeding roller 12 is used for carrying the unwound pole piece. The feeding roller 12 is arranged in parallel with the driving roller 21, and the feeding roller 12 transports the pole piece to the belt 23 on the driving roller 21.

[0028] Further, referring to Figure 1 , the detection mechanism 30 is a CCD image detection mechanism 30, the detection mechanism 30 is located on the side of the feeding main plate 22 close to the die cutting mechanism 40, and the detection mechanism 30 is used for detecting the state of the pole piece, so as to ensure that the pole piece entering the die cutting mechanism 40 is in a correct state.

[0029] Further, referring to Figure 1 , the die cutting mechanism 40 includes a die cutting upper die 41 and a die cutting lower die 42, the die cutting upper die 41 and the die cutting lower die 42 are combined to form a cavity of the required pole piece, and the pole piece is transported between the die cutting upper die 41 and the die cutting lower die 42 through the feeding main plate 22, so that the pole piece is die cut into a corresponding shape.

[0030] Further, referring toFigure 1 The pole piece die-cutting device further comprises a control mechanism electrically connected with the feeding mechanism 20, the detection mechanism 30 and the die-cutting mechanism 40 respectively, and the control mechanism is used for ensuring the normal die-cutting of the pole piece and controlling the feeding mechanism 20 and the die-cutting mechanism 40 to stop when the detection mechanism 30 detects that the pole piece state is not correct.

[0031] The utility model discloses a fixed pin 60 of fixed feeding mechanism 20 is set to fix the position of belt 23, prevents the belt 23 and drives pole piece to move to avoid detection mechanism 30 always reports the error and influences production efficiency.

[0032] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the utility model concept, a plurality of deformation and improvement can be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be the appended claims.

Claims

1. A pole piece die cutting device characterized by, It includes: The unwinding mechanism (10) is placed on the pole piece roll (50), the unwinding mechanism (10) unwinds the pole piece roll (50) to the feeding mechanism (20), the feeding mechanism (20) drives the pole piece to transport to the die cutting mechanism (40), the feeding mechanism (20) includes a driving roller (21), a feeding main plate (22) and a belt (23) wound on the driving roller (21) and the feeding main plate (22), the driving roller (21) is arranged in parallel with the unwinding mechanism (10), the feeding main plate (22) is provided with a fixing part for controlling the offset of the belt (23), the detection mechanism (30) is used for detecting the state of the pole piece, and the die cutting mechanism (40) is used for die cutting the pole piece.

2. The pole piece die cutting apparatus of claim 1, wherein, The driving roller (21) and the feeding main plate (22) are provided with a fixed plate (24), both ends of the driving roller (21) are respectively provided with a connecting rod (25) connected with two outer sides of the fixed plate (24), one end of the feeding main plate (22) towards the driving roller (21) is connected with the fixed plate (24), and the fixing part is used for fixing the feeding main plate (22) and the fixed plate (24).

3. The pole piece die cutting apparatus of claim 2, wherein, The feeding main plate (22) is provided with a groove (221) on one side towards the fixed plate (24), the groove (221) is matched with the width of the fixed plate (24), and one side of the fixed plate (24) towards the groove (221) is accommodated in the groove (221).

4. The pole piece die cutting apparatus of claim 3, wherein, The fixing part is a fixed pin (60), the fixed pin (60) is sequentially arranged through the feeding main plate (22) and the fixed plate (24) from the outer side of the feeding main plate (22), and the feeding main plate (22) is provided with the fixed pin (60) relative to both outer sides of the fixed plate (24).

5. The pole piece die cutting apparatus of claim 2, wherein, The feeding main plate (22) and the fixed plate (24) are provided with baffles (26) on both outer sides, and the belt (23) is located between the baffles (26) on both sides of the fixed plate (24) and the feeding main plate (22).

6. The pole piece die cutting apparatus of claim 2, wherein, The fixed plate (24) is fixed with a compression roller above, and the compression roller is used for pressing the pole piece transported to the belt (23).

7. The pole piece die cutting apparatus of claim 1, wherein, The unwinding mechanism (10) includes an unwinding roller (11) and a feeding roller (12), the unwinding roller (11) is used for placing the pole piece roll (50), the feeding roller (12) is used for carrying the unwound pole piece, the feeding roller (12) is arranged in parallel with the driving roller (21), and the feeding roller (12) transports the pole piece to the belt (23).

8. The pole piece die cutting apparatus of claim 1, wherein, The detection mechanism (30) is a CCD image detection mechanism (30), and the detection mechanism (30) is located on one side of the feeding main plate (22) close to the die cutting mechanism (40).

9. The pole piece die cutting apparatus of claim 1, wherein, The die cutting mechanism (40) includes a die cutting upper die (41) and a die cutting lower die (42).

10. The pole piece die cutting apparatus of claim 1, wherein, The control mechanism is electrically connected with the feeding mechanism (20), the detecting mechanism (30) and the die-cutting mechanism (40) respectively.

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