A device for removing bad pole pieces without diaphragm of a film winding machine

Abstract

The present invention relates to a device for removing bad pole pieces without a diaphragm of a film-making and winding machine, comprising a pole piece winding roller mechanism, a winding roller moving mechanism, and a waste material taking and transferring mechanism installed behind a panel of the film-making and winding machine. When the bad pole piece removal device is in operation, the winding roller moving mechanism drives the pole piece winding roller mechanism to move and extend out from the panel, and the pole piece winding roller mechanism rewinds the bad pole piece. After the rewinding is completed, the winding roller moving mechanism drives the pole piece winding roller mechanism to move and retract to the rear of the panel, and the waste material taking and transferring mechanism clamps the rewound bad pole piece and transfers it to a waste material removal area, which does not occupy the space in front of the panel and can remove the bad pole piece separately before winding, does not need to waste the diaphragm, and reduces the impact and pollution on the winding area.

Description

Technical Field

[0001] The invention relates to the field of lithium ion battery manufacturing equipment, and in particular to a device for removing bad pole pieces without diaphragms of a film-making and winding machine. Background Art

[0002] The film-making and winding machine, whose full name is lithium-ion battery film-making and winding machine, is a mechanical equipment used to manufacture lithium-ion batteries. Lithium-ion batteries are composed of positive and negative electrodes, diaphragms, and tabs. In the production process, it is inevitable that there are some defective electrodes, such as electrode waves, electrode breakage, electrode interface, electrode welding errors or no welding, and other defective electrodes. The film-making and winding machines on the market now do not have a special functional device for removing defective electrodes. The existing method of removing defective electrodes is to use a sensor to detect which section of the electrode is defective, and then the machine records this section of the electrode. Finally, after the electrode and the diaphragm are initially wound into a semi-finished battery cell, the semi-finished battery cell is directly marked as a defective product and then eliminated. However, doing so will undoubtedly consume a part of the diaphragm and exclude it together with the electrode, which will cause waste of the diaphragm, thereby increasing costs, and the defective electrode entering the winding needle will pollute the winding area. Summary of the invention

[0003] In view of the defects of the prior art, the present invention provides a device for removing bad pole pieces without a diaphragm, which does not occupy the space of the front panel of the film winding machine and can remove bad pole pieces separately in time. The specific technical scheme is as follows:

[0004] A device for removing defective electrodes without diaphragms of a film-making and winding machine comprises an electrode winding roller mechanism, a winding roller moving mechanism and a waste material taking and transferring mechanism installed behind a panel of the film-making and winding machine. The winding roller moving mechanism drives the electrode winding roller mechanism to move and extend out of or retract from the panel, the electrode winding roller mechanism rewinds the defective electrode, and the waste material taking and transferring mechanism clamps the rewound defective electrode and transfers it to a waste material removal area.

[0005] As a preferred solution of the present invention, the pole piece winding roller mechanism has two, respectively used for winding up the left pole piece and the right pole piece. A single pole piece winding roller mechanism includes a mounting plate, a winding motor, a connecting shaft, a roller mounting seat and a winding roller. The winding motor is installed at the rear bottom of the mounting plate, the winding motor drives the connecting shaft to rotate, the winding roller is installed at the front end of the roller mounting seat, the front end of the connecting shaft extends into the roller mounting seat to connect to the winding roller, the winding roller is provided with a socket for inserting the pole piece, and the panel is provided with a through hole for the winding roller to extend or retract.

[0006] As a preferred solution of the present invention, it also includes a winding and pressing wheel mechanism, which includes a pressing wheel cylinder, a rotating plate and a pressing wheel, the pressing wheel cylinder piston rod is connected to one end of the rotating plate, the middle part of the rotating plate is hinged to the roller mounting seat, and the pressing wheel is installed at the other end of the rotating plate.

[0007] As a preferred solution of the present invention, the winding roller moving mechanism has two parts, each of which is used to drive a single pole piece winding roller mechanism to move. The single winding roller moving mechanism includes a platform, a moving motor, a first pulley, a second pulley, a belt and a belt connecting plate. The moving motor is installed on the rear side of the platform, the first pulley is installed on the output shaft of the moving motor, and the second pulley is installed on the front side of the platform. The first pulley is connected to the second pulley through a belt drive, and one end of the belt connecting plate is installed on the belt connecting plate and the other end is connected to the mounting plate.

[0008] As a preferred solution of the present invention, the waste picking and transferring mechanism includes a rodless cylinder, a movable plate, a lifting cylinder, a lifting plate, a clamping cylinder and a clamping claw. The rodless cylinder drives the movable plate to move left and right. The lifting cylinder is installed in front of the movable plate. The lifting cylinder drives the lifting plate to move up and down. The clamping cylinder is installed in front of the lifting plate. The clamping cylinder drives the clamping claw to clamp the defective electrode after winding.

[0009] As a preferred solution of the present invention, a limit cylinder is installed behind the rodless cylinder, and the limit cylinder limits the moving position of the movable plate.

[0010] As a preferred solution of the present invention, the pole piece winding roller mechanism is located before the winding needle mechanism of the film making and winding machine to wind up the defective pole piece.

[0011] The beneficial effects of the present invention are as follows: when the device for removing bad pole pieces without diaphragms is working, the winding roller moving mechanism drives the pole piece winding roller mechanism to move and extend out from the panel, and the pole piece winding roller mechanism rewinds the bad pole piece. After the rewinding is completed, the winding roller moving mechanism drives the pole piece winding roller mechanism to move and retract behind the panel, and the waste picking and transferring mechanism clamps the rewound bad pole piece and transfers it to the waste removal area, which will not occupy the space in front of the panel, and can remove the bad pole piece separately before winding, without wasting diaphragms, thereby reducing the impact and pollution on the winding area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a stereogram of the present invention;

[0013] Figure 2 It is a stereogram of another viewing angle of the present invention;

[0014] Figure 3 is a stereoscopic view of the present invention installed behind a panel;

[0015] Figure 4 is a three-dimensional diagram of the pole piece winding roller mechanism of the present invention;

[0016] Figure 5 It is a structural schematic diagram of the winding and pressing wheel mechanism of the present invention;

[0017] Figure 6 is a perspective view of the winding roller moving mechanism of the present invention;

[0018] Figure 7 is a three-dimensional diagram of the waste material taking and transferring mechanism of the present invention;

[0019] Figure 8 It is a structural schematic diagram of the clamping cylinder of the present invention moving to different positions. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings:

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 3 As shown, a device for removing bad electrode sheets without diaphragms of a film-making winding machine comprises an electrode sheet winding roller mechanism 2, a winding roller moving mechanism 3, and a waste material taking and transferring mechanism 4 installed behind a panel 1 of the film-making winding machine, which can save space in front of the panel 1. The winding roller moving mechanism 3 drives the electrode sheet winding roller mechanism 2 to move and extend from the panel 1 or retract. When the bad electrode sheet removal device is working, the winding roller moving mechanism drives the electrode sheet winding roller mechanism 2 to move and extend from the panel 1, and the electrode sheet winding roller mechanism 2 rewinds the bad electrode sheet. After completion, the winding roller moving mechanism 3 drives the electrode winding roller mechanism 2 to move and retract behind the panel 1, and the waste picking and transferring mechanism 4 clamps the defective electrode after winding and transfers it to the waste exclusion area. A storage box or conveyor belt can be placed in the waste exclusion area to collect the defective electrode, and the defective electrode can be excluded separately before winding, without wasting diaphragm, reducing the impact and pollution on the winding area 6 where the winding needle is located. The electrode winding roller mechanism is located before the winding needle mechanism of the film making winding machine to wind up the defective electrode, and the winding needle mechanism is installed in the winding area 6.

[0024] like Figures 1 to 4As shown, the pole piece winding roller mechanism 2 has two for winding up the left pole piece A and the right pole piece B respectively. The single pole piece winding roller mechanism 2 comprises a mounting plate 21, a winding motor 22, a connecting shaft 23, a roller mounting seat 24 and a winding roller 25. The winding motor 22 is installed at the rear of the bottom of the mounting plate 21. The winding motor 22 drives the connecting shaft 23 to rotate. The winding roller 25 is installed at the front end of the roller mounting seat 24. The front end of the connecting shaft 23 extends into the roller mounting seat 24 to connect with the winding roller 25. The winding roller 25 is provided with a socket 25a for inserting the pole piece. The panel 1 is provided with a through hole for the winding roller to extend or retract. When the winding roller 25 extends from the through hole, the pole piece is inserted into the socket 25a. At this time, the winding motor 22 drives the winding roller 25 to rotate through the connecting shaft 23.

[0025] like Figure 1 , 2 As shown in , 5, the device for removing defective pole pieces without diaphragms also includes a winding and pressing wheel mechanism 7. The number of the winding and pressing wheel mechanisms 7 corresponds to the number of the pole piece winding roller mechanisms 2. The winding and pressing wheel mechanism 7 includes a pressing wheel cylinder 71, a rotating plate 72 and a pressing wheel 73. The pressing wheel cylinder piston rod is connected to one end of the rotating plate 72. The middle part of the rotating plate 72 is hinged to the roller mounting seat 24. The other end of the rotating plate 72 is installed with a pressing wheel 73. The pressing wheel cylinder 71 drives the rotating plate 72 to rotate, and the rotating plate 72 drives the pressing wheel 73 to press the winding roller 25.

[0026] like Figure 1 , 2 As shown in , 6, the winding roller moving mechanism 3 has two parts, each of which is used to drive a single pole piece winding roller mechanism to move. The single winding roller moving mechanism 3 includes a platform 31, a moving motor 32, a first pulley 33, a second pulley 34, a belt 35 and a belt connecting plate 36. The moving motor 32 is installed on the rear side of the platform 31, and the first pulley 33 is installed on the output shaft of the moving motor 32. The second pulley 34 is installed on the front side of the platform 31. The first pulley 33 is connected to the second pulley 34 through a belt 35. One end of the belt connecting plate 36 is installed on the belt connecting plate 36 and the other end is connected to the mounting plate 21. A slider is installed above the mounting plate 21, and the slider is slidably connected to the slide rail 37. The slide rail 37 is fixedly installed on the bottom of the platform 31. The moving motor 32 drives the first pulley 33 to rotate, and the first pulley 33 drives the belt 35 to rotate. The belt 35 drives the mounting plate 21 to move through the belt connecting plate 36, and the mounting plate 21 moves forward and backward with the winding roller 25.

[0027] like Figure 7As shown, the waste material taking and transferring mechanism 4 includes a rodless cylinder 41, a moving plate 42, a lifting cylinder 43, a lifting plate 44, a clamping cylinder 45 and a clamping claw 46. The rodless cylinder 41 drives the moving plate 42 to move left and right. The lifting cylinder 43 is installed in front of the moving plate 42. The lifting cylinder 43 drives the lifting plate 44 to move up and down. The clamping cylinder 45 is installed in front of the lifting plate 44. The clamping cylinder 45 drives the clamping claw 46 to clamp the defective electrode after winding. The limiting cylinder 47 is installed behind the rodless cylinder 41. The limiting cylinder 47 limits the moving position of the moving plate 42 so that the clamping cylinder 45 can stay as shown in FIG. Figure 8 The waste removal position, left pole piece clamping position, and right pole piece clamping position are shown.

[0028] The above content is a further detailed description of the present invention in combination with specific preferred implementation modes. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A device for removing bad pole pieces without diaphragms of a film-making and winding machine, characterized in that: It includes a pole piece winding roller mechanism, a winding roller moving mechanism, and a waste material taking and transferring mechanism installed behind the panel of the film making and winding machine. The winding roller moving mechanism drives the pole piece winding roller mechanism to move out of or retract from the panel. The pole piece winding roller mechanism rewinds the defective pole piece. The waste material taking and transferring mechanism clamps the rewound defective pole piece and transfers it to the waste material removal area. There are two pole piece winding roller mechanisms, which are used to wind up the left pole piece and the right pole piece respectively. A single pole piece winding roller mechanism comprises a mounting plate, a winding motor, a connecting shaft, a roller mounting seat and a winding roller. A winding motor is mounted at the rear of the bottom of the mounting plate. The winding motor drives the connecting shaft to rotate. A winding roller is mounted at the front end of the roller mounting seat. The front end of the connecting shaft extends into the roller mounting seat to connect with the winding roller. The winding roller is provided with a socket for inserting the pole piece, and the panel is provided with a through hole for the winding roller to extend or retract. There are two winding roller moving mechanisms, each used to drive a single pole piece winding roller mechanism to move. The single winding roller moving mechanism includes a platform, a moving motor, a first pulley, a second pulley, a belt and a belt connecting plate. The moving motor is installed on the rear side of the platform, the first pulley is installed on the output shaft of the moving motor, and the second pulley is installed on the front side of the platform. The first pulley is connected to the second pulley through a belt transmission. One end of the belt connecting plate is installed on the belt connecting plate and the other end is connected to the mounting plate. The waste material taking and transferring mechanism includes a rodless cylinder, a movable plate, a lifting cylinder, a lifting plate, a clamping cylinder and a clamping claw. The rodless cylinder drives the movable plate to move left and right. The lifting cylinder is installed in front of the movable plate. The lifting cylinder drives the lifting plate to move up and down. The clamping cylinder is installed in front of the lifting plate. The clamping cylinder drives the clamping claw to clamp the defective electrode after winding.

2. The device for removing defective pole pieces without diaphragms of a film-making and winding machine according to claim 1 is characterized in that: It also includes a winding and pressing wheel mechanism, which includes a pressing wheel cylinder, a rotating plate and a pressing wheel. The pressing wheel cylinder piston rod is connected to one end of the rotating plate, the middle of the rotating plate is hinged to the roller mounting seat, and the pressing wheel is installed at the other end of the rotating plate.

3. The device for removing defective pole pieces without diaphragms of a film-making and winding machine according to claim 1 is characterized in that: A limit cylinder is installed behind the rodless cylinder, and the limit cylinder limits the moving position of the moving plate.

4. The device for removing defective pole pieces without diaphragms of a film-making and winding machine according to claim 1 is characterized in that: The pole piece winding roller mechanism is located before the winding needle mechanism of the film winding machine to rewind defective pole pieces.

Images