Control device for controlling coating die head to automatically enter and exit

Abstract

The utility model discloses a control device for controlling a coating die head to automatically enter and exit, which comprises a discharging mechanism, a coating mechanism and a feeding mechanism, a pole piece or a foil is conveyed in the discharging mechanism, the coating mechanism comprises a coating die head, a coating roller and a plurality of rollers, the pole piece or the foil is output from the discharging mechanism and enters the coating mechanism for coating, and the feeding mechanism is used for feeding the pole piece or the foil. The feeding mechanism comprises a slurry barrel and a screw pump connected with the slurry barrel, a servo motor is arranged on one side of the coating die head and used for controlling the coating die head to enter and exit so as to coat pole pieces or foils, a first driving motor used for controlling the screw pump to supply materials to the coating die head is arranged at one end of the screw pump, and the discharging mechanism comprises a color sensor. The color sensor is used for detecting a pole piece or foil, the control device for controlling the coating die head to automatically enter and exit further comprises a controller, and the controller is electrically connected with the color sensor, the servo motor and the first driving motor. The automatic feeding and discharging device has the effect that the coating die head can automatically enter and exit according to conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field especially relates to a control device that controls automatic import and export of coating die. BACKGROUND

[0002] Lithium ion power battery has been widely applied in military and civilian small appliances such as mobile phone, portable computer, video camera, camera and the like due to the advantages of high energy density, high battery voltage, wide working temperature range, long cycle service life, environmental protection and the like.

[0003] With the continuous progress of science and technology, large-capacity power lithium ion battery has been applied in electric vehicles and become one of the main power energy of electric vehicles in the 21st century. The rapid development of new energy vehicle industry puts forward high requirements on the safety, environmental protection and large-current charge-discharge performance of lithium ion battery. In large-scale production, research shows that in order to improve the performance of the battery, the coating process of lithium ion battery manufacturing is particularly important.

[0004] At present, the coating machine used in the lithium battery industry is a reciprocating coating machine, the reciprocating coating machine has an A die head and a B die head, two operators are needed to monitor and operate the A die head and the B die head, when the foil is replaced or the A die head is abnormally withdrawn during the coating process, the B die head operator needs to identify and judge the single-sided or empty foil state of the pole piece with naked eyes, and then make the action of entering and exiting the B die head, this process cannot effectively control the number of single-sided pole pieces, resulting in a large number of single-sided pole pieces being scrapped, and an operator needs to be arranged for the B die head, causing labor cost loss. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects in the prior art, and provides a control device for controlling automatic import and export of coating die.

[0006] The utility model aims at overcoming the defects in the prior art, and provides a control device for controlling automatic import and export of coating die.

[0007] The application discloses a control device for controlling automatic entry and exit of a coating die, which comprises a feeding mechanism, a coating mechanism and a feeding mechanism, the feeding mechanism is used for conveying a pole piece or a foil, the coating mechanism comprises a coating die, a coating roller and a plurality of rollers, the pole piece or the foil is output from the feeding mechanism and enters the coating mechanism for coating, the feeding mechanism comprises a slurry barrel and a screw pump connected with the slurry barrel, one side of the coating die is provided with a servo motor, the servo motor is used for controlling entry and exit of the coating die to coat the pole piece or the foil, one end of the screw pump is provided with a first driving motor used for controlling the screw pump to feed the coating die, the feeding mechanism comprises a color sensor, and the color sensor is used for detecting the pole piece or the foil; the control device further comprises a controller, and the controller is electrically connected with the color sensor, the servo motor and the first driving motor.

[0008] In an embodiment, the feeding mechanism comprises a rack, and the color sensor is fixed to the rack.

[0009] In an embodiment, the color sensor is located on one side of the feeding mechanism close to the coating mechanism, the feeding mechanism is provided with a conveying roller, the pole piece or the foil is arranged on the conveying roller, and the color sensor is located directly above the conveying roller.

[0010] In an embodiment, the controller is a PLC controller.

[0011] In an embodiment, the coating die comprises an upper die and a lower die, a die cavity is formed between the upper die and the lower die, and the upper die and the lower die are formed with a die discharge port.

[0012] In an embodiment, a gasket is arranged between the upper die and the lower die.

[0013] In an embodiment, the plurality of rollers in the coating mechanism comprise a plurality of heads, a back roller, a rubber pinch roller and a guide roller, the pole piece or the foil is output from the feeding mechanism, passes through the plurality of heads, is arranged between the back roller and the rubber pinch roller and then is arranged on the coating roller.

[0014] In an embodiment, the back roller and the coating roller rotate in opposite directions, the coating die is located on one side of the coating roller, and the pole piece or the foil is located between the coating die and the coating roller.

[0015] In an embodiment, the back roller and the coating roller are provided with a second driving motor used for controlling rotation.

[0016] In one embodiment, the screw pump includes a feed inlet and a discharge outlet, the feed inlet of the screw pump is connected with the slurry barrel through a pipeline, and the discharge outlet of the screw pump is connected with the mold cavity through a pipeline.

[0017] Compared with the prior art, the utility model has at least the following advantages:

[0018] The control device for controlling automatic feeding and discharging of the coating die of the utility model realizes the effect of automatic feeding and discharging of the coating die through the color sensor, the PLC controller, the first driving motor and the servo motor, and the single-sided quantity of the pole piece is effectively controlled, so that the situation of a large number of single-sided pole pieces being scrapped due to the single-sided quantity of the pole piece is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced below.

[0020] Figure 1 The structure diagram of the control device for controlling automatic feeding and discharging of the coating die of the utility model is provided.

[0021] BRIEF DESCRIPTION OF DRAWINGS: 10, the discharging mechanism; 11, the rack; 12, the color sensor; 13, the conveying roller; 20, the coating mechanism; 21, the coating die; 211, the upper die; 212, the lower die; 213, the mold cavity; 214, the die discharge port; 215, the gasket; 22, the coating roller; 23, the servo motor; 24, the head; 25, the back roller; 26, the rubber clamp roller; 27, the guide roller; 28, the second driving motor; 30, the feeding mechanism; 31, the slurry barrel; 32, the screw pump; 33, the first driving motor. DETAILED DESCRIPTION

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

[0023] The control device for controlling automatic feeding and discharging of the coating die, referring to Figure 1, including a feeding mechanism 10, a coating mechanism 20 and a supply mechanism 30, the feeding mechanism 10 comprises a rack 11, the rack 11 transports a pole piece or a foil, the coating mechanism 20 comprises a coating die head 21, a coating roller 22 and a plurality of rollers, the pole piece or the foil is discharged from the feeding mechanism 10 and enters the coating mechanism 20 for coating. The supply mechanism 30 comprises a slurry barrel 31 and a screw pump 32 connected with the slurry barrel 31, the slurry barrel 31 contains the slurry to be coated, and the screw pump 32 is used to deliver the slurry to the coating die head 21 to coat the slurry on the pole piece or the foil. It should be noted that one side of the coating die head 21 is provided with a servo motor 23, the servo motor 23 is used to control the coating die head 21 to enter and exit to coat the pole piece or the foil, one end of the screw pump 32 is provided with a first driving motor 33 for controlling the screw pump 32 to supply the coating die head 21, and the cooperation of the first driving motor 33 and the servo motor 23 ensures the normal coating.

[0024] Referring to Figure 1 , the rack 11 is provided with a color sensor 12, the color sensor 12 is arranged opposite to the position of the pole piece or the foil transported out of the feeding mechanism 10, the color sensor 12 is used to detect the single-sided pole piece or the empty foil, since the color of the single-sided pole piece or the empty foil is different, the color sensor 12 can detect whether the feeding mechanism 10 discharges the single-sided pole piece or the empty foil at this time.

[0025] Further, referring to Figure 1 , the color sensor 12 is located on the side of the feeding mechanism 10 close to the coating mechanism 20, the feeding mechanism 10 is provided with a conveying roller 13, the pole piece or the foil is arranged on the conveying roller 13, and the color sensor 12 is located above the conveying roller 13 which transports the pole piece or the foil out of the feeding mechanism 10, so as to monitor the color of the discharged material in real time to determine whether the discharged material is a single-sided pole piece or an empty foil.

[0026] Referring to Figure 1The control device for automatically controlling the in-out of the coating die 21 further comprises a controller, which is a PLC controller, and the PLC controller is electrically connected with the color sensor 12, the servo motor 23 and the first driving motor 33. The color sensor 12 monitors the different colors between the single-sided pole piece and the empty foil in real time. Once the color signal changes, the color sensor 12 will immediately send a signal to the PLC controller, and then the PLC controller sends a current signal according to the color signal. After receiving the signal, the first driving motor 33 and the servo motor 23 control the pump speed of the screw pump 32 and the in-out action of the coating die 21 respectively, so as to realize the effect of automatically controlling the in-out of the coating die 21. The coating die 21 judges whether to coat according to different feeding conditions, so as to save manpower for judgment, and effectively control the situation that a large number of single-sided pole pieces are scrapped due to the single-sided quantity of the pole pieces. It should be noted that when the color sensor 12 detects that the material discharged from the discharging mechanism 10 is a single-sided pole piece, it informs the PLC controller to control the servo motor 23 and the first driving motor 33 to start working to coat the single-sided pole piece. When the color sensor 12 detects that the material discharged from the discharging mechanism 10 is empty foil, it means that the foil is empty, and informs the PLC controller to control the servo motor 23 and the first driving motor 33 to stop working.

[0027] With reference to Figure 1 The coating die 21 comprises an upper die 211 and a lower die 212, a die cavity 213 is formed between the upper die 211 and the lower die 212, and the upper die 211 and the lower die 212 are formed with a die discharge port 214. The coating die 21 cooperates with the coating roller 22, so that the slurry is uniformly coated on the pole piece or the foil.

[0028] Further, with reference to Figure 1 A gasket 215 is arranged between the upper die 211 and the lower die 212, and the gasket 215 is used for sealing between the upper die 211 and the lower die 212.

[0029] With reference to Figure 1 The plurality of rollers in the coating mechanism 20 comprises a plurality of heads 24, a back roller 25, a rubber pinch roller 26 and a guide roller 27. The pole piece or the foil is discharged from the discharging mechanism 10 and sequentially passes through the plurality of heads 24, is wound between the back roller 25 and the rubber pinch roller 26 and then is wound on the coating roller 22. The rotation direction of the back roller 25 is opposite to that of the coating roller 22, and the coating die 21 is located on one side of the coating roller 22, and the pole piece or the foil is located between the coating die 21 and the coating roller 22, so that the coating die 21 coats the pole piece or the foil wound on the coating roller 22 with slurry by in-out action. It should be noted that the coating mechanism 20 is provided with a fixing frame for respectively fixing the coating die 21, the coating roller 22 and the plurality of rollers.

[0030] Further, with reference to Figure 1The second driving motor 28 is arranged on the back roller 25 and the coating roller 22 to control the rotation of the back roller 25 and the coating roller 22, so that the coating roller 22 and the back roller 25 are driven to rotate by the second driving motor 28, and the pole piece or the foil is transported to the coating die head 21 for coating operation.

[0031] Further, referring to Figure 1 The screw pump 32 comprises a feeding port and a discharging port, the feeding port of the screw pump 32 is connected with the slurry barrel 31 through a pipeline, and the slurry in the slurry barrel 31 enters the screw pump 32 through the pipeline. The screw pump 32 is driven by the first driving motor 33 to pump out the slurry in the screw pump 32 to the coating roller 22.

[0032] Referring to Figure 1 The discharging port of the screw pump 32 is connected with the die cavity 213 through a pipeline, and the slurry pumped out by the screw pump 32 is transported to the die cavity 213 through the pipeline and is extruded through the die discharging port 214 between the upper die head 211 and the lower die head 212. The first driving motor 33 can control the speed of the slurry pumped out by the screw pump 32 to control the amount of slurry reaching the die cavity 213.

[0033] The color sensor 12 is arranged to monitor the single-sided pole piece and the empty foil discharged by the discharging mechanism 10 in real time. Once the color signal changes, the color sensor 12 will immediately send a signal to the PLC controller, and then the PLC controller will send a current signal according to the color signal. The first driving motor 33 and the servo motor 23 receive the signal and control the pump speed of the screw pump 32 and the in-out action of the coating die head 21 respectively to realize the automatic in-out effect of the coating die head 21. The coating die head 21 judges whether to coat according to different feeding conditions to save manpower and effectively control the single-sided quantity of the pole piece to cause a large number of single-sided pole pieces to be scrapped.

[0034] The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A control device for automatically advancing and retreating a coating die head, characterized in that, Including: The discharge mechanism (10), coating mechanism (20) and supply mechanism (30), the discharge mechanism (10) transports pole piece or foil material, the coating mechanism (20) includes coating die head (21), coating roller (22) and multiple rollers, the pole piece or foil material is output from the discharge mechanism (10) and enters the coating mechanism (20) and is coated, the supply mechanism (30) includes slurry barrel (31) and screw pump (32) connected with the slurry barrel (31), one side of the coating die head (21) is provided with servo motor (23), the servo motor (23) is used to control the coating die head (21) to enter and exit to coat pole piece or foil material, one end of the screw pump (32) is provided with first drive motor (33) for controlling the screw pump (32) to supply the coating die head (21), the discharge mechanism (10) includes color sensor (12), the color sensor (12) is used to detect the pole piece or foil material, the control device for controlling the coating die head to automatically enter and exit further includes controller, the controller is electrically connected with the color sensor (12), the servo motor (23) and the first drive motor (33).

2. The control device for automatically opening and closing a coating die according to claim 1, wherein The discharge mechanism (10) includes rack (11), and the color sensor (12) is fixed on the rack (11).

3. The control device for automatically opening and closing a coating die according to claim 2, wherein The color sensor (12) is located on the side of the discharge mechanism (10) close to the coating mechanism (20), the discharge mechanism (10) is provided with conveying roller (13), the pole piece or foil material is wound on the conveying roller (13), and the color sensor (12) is located directly above the conveying roller (13).

4. The control device for automatically opening and closing a coating die according to claim 1, wherein The controller is a PLC controller.

5. The control device for automatically opening and closing a coating die according to claim 1, wherein The coating die head (21) includes upper die head (211) and lower die head (212), the die cavity (213) is formed between the upper die head (211) and the lower die head (212), and the upper die head (211) and the lower die head (212) are formed with die head discharge port (214).

6. The control device for automatically opening and closing a coating die according to claim 5, wherein A gasket (215) is arranged between the upper die head (211) and the lower die head (212).

7. The control device for automatically opening and closing a coating die according to claim 1, wherein The multiple rollers in the coating mechanism (20) include multiple heads (24), back roller (25), rubber pinch roller (26) and guide roller (27), the pole piece or foil material is discharged through the discharge mechanism (10), passes through multiple heads (24), is wound between the back roller (25) and the rubber pinch roller (26), and is wound on the coating roller (22).

8. The control device for automatically opening and closing a coating die according to claim 7, wherein The rotation direction of the back roller (25) is opposite to that of the coating roller (22), and the coating die head (21) is located on one side of the coating roller (22), and the pole piece or foil material is located between the coating die head (21) and the coating roller (22).

9. The control device for automatically opening and closing a coating die according to claim 8, wherein Second drive motor (28) is arranged on the back roller (25) and the coating roller (22) for controlling rotation.

10. The control device for automatically opening and closing a coating die according to claim 5, wherein The screw pump (32) comprises a feed port and a discharge port, the feed port of the screw pump (32) is connected with the slurry barrel (31) through a pipeline, and the discharge port of the screw pump (32) is connected with the mold cavity (213) through a pipeline.

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