Battery diaphragm base membrane heating and shaping device

Abstract

The utility model relates to a shaping device, in particular to a battery diaphragm base membrane heating and shaping device. The battery diaphragm base membrane heating and shaping device comprises a bottom plate, a shell I, a shell II, a shell III and the like, a first shell is fixedly connected to the right portion of the bottom plate, a third shell is fixedly connected to the left portion of the bottom plate, a second shell is fixedly connected to the upper portion of the third shell, and the left portion of the first shell is fixedly connected with the right portion of the second shell. According to the utility model, the cooling area is arranged in the shell II, so that the heated base film is cooled and shaped, and the base film is convenient to recover to normal temperature to be quickly blanked while the base film forming is accelerated; and the space on the right side is used for pre-cooling buffer treatment before the heated base film enters the cooling area on the left side of the partition plate, and the situation that the base film is directly cooled after being heated, uncontrollable shrinkage deformation is caused after the base film is subjected to cold airflow, and the forming effect is affected is avoided.

Description

Technical Field

[0001] The utility model relates to a shaping device, in particular to a battery diaphragm base film heating shaping device. Background Art

[0002] Battery separator refers to a layer of separator material between the positive and negative electrodes of the battery. It is a very critical part of the battery and has a direct impact on battery safety and cost. Its main function is to isolate the positive and negative electrodes and prevent electrons in the battery from passing freely, while allowing ions in the electrolyte to pass freely between the positive and negative electrodes.

[0003] Thermal shaping of the base film of the battery diaphragm is an important step in the production of the battery diaphragm. A Chinese patent with the publication number CN220368090U discloses a thermal shaping device for the production of lithium battery diaphragms, including a shaping device body, the shaping device body including a base, the top of the base is fixedly connected to a placement seat, the bottom of the placement seat surface is fixedly connected to a bottom frame, and the surface of the placement seat is installed with a waste heat recovery mechanism; the waste heat recovery mechanism includes a recovery box, and the recovery box is installed on the surface of the placement seat. The thermal shaping device for the production of lithium battery diaphragms is installed on the surface of the placement seat through the recovery box, and then the fixed plate is rotated, and the fixed plate drives the positioning jack to be inserted into the surface of the fixed column, and then the fixing bolt is threadedly connected to the threaded groove to fix the position of the fixed plate. The above-mentioned device can solve the problem that a large amount of surplus will be generated during the thermal shaping process of the diaphragm base film when the shaping device is in use, and the energy consumption can be reduced. However, when the device is in use, there is no cooling shaping mechanism after the base film is heated, and it is necessary to wait for the base film to cool down. During this process, subsequent processing cannot be carried out, which affects subsequent work.

[0004] In view of this, the utility model provides a battery diaphragm base film heating and shaping device which can continuously perform heating and shaping and cooling work, reduce the waiting time, reduce the impact on subsequent work steps, and improve work efficiency. Utility Model Content

[0005] In order to overcome the disadvantage that when the equipment is in use, there is no cooling and shaping mechanism for the base film after heating, and it is necessary to wait for the base film to cool down. During this process, subsequent processing cannot be carried out, which affects subsequent work. The purpose is to provide a battery diaphragm base film heating and shaping device that can perform heating, shaping and cooling work continuously, reduce waiting time, reduce the impact on subsequent work steps, and improve work efficiency.

[0006] The technical scheme of the utility model is: a battery diaphragm base film heating and shaping device, including a bottom plate, a shell one, a shell two, a shell three, a feed roller, a feeding roller, a heater, an air inlet box, an air outlet pipe, a partition one, a partition two, a cooling device, a discharge shaft one, a discharge shaft two, a gear set and a power set, the right part of the bottom plate is fixedly connected with the shell one, the left part of the bottom plate is fixedly connected with the shell three, the upper part of the shell three is fixedly connected with the shell two, the left part of the shell one is fixedly connected with the right part of the shell two, four feeding rollers are rotatably installed in the shell one and the shell two, and one feeding roller is rotatably installed in the shell three, the front and rear sides of the right part of the shell one are fixedly connected, the feed roller is rotatably installed between the support blocks one, the feed roller rotates in the shell one, and a feeding roller is fixedly installed at the lower part of the shell A heater, two air inlet boxes are fixedly connected to the heater, the two air inlet boxes are symmetrically installed in shell one front and back, and multiple air outlet ducts are evenly connected and communicated with the air inlet boxes. A partition plate 1 is sealed and fixedly connected to the left part of shell one, and a partition plate 2 is fixedly connected to the right part of shell two. A cooling device is fixedly installed on the left part of shell two, and the cooling device is connected to the inside of shell two through a pipeline. A discharge shaft 1 is rotatably connected in shell three, and a discharge shaft 2 is rotatably connected near the discharge shaft in shell three, and the discharge shaft 1 passes through shell three in front. A power group is installed at the front of shell three, and the power group consists of a pulley group and a transmission motor. The power group transmits the power of the transmission motor to the discharge shaft 1 through the pulley group, and the discharge shaft 1 and the discharge shaft 2 rotate in opposite directions through the engagement of the gear group.

[0007] As a further improvement of the solution, a guide plate is also included, and the upper part of the support block is fixedly connected with the guide plate.

[0008] As a further improvement of the scheme, it also includes sensor 1, sensor 2 and a warning light. Sensor 1 is installed at the lower right part of shell 1, sensor 2 is installed at the lower left part of shell 1, and a warning light is installed at the front part of shell 1. The warning light connects sensor 1 and sensor 2 through signals.

[0009] As a further improvement of the solution, a circulation device is also included. The circulation device is installed on the upper part of the shell one, and the circulation device is connected and communicated with the shell two through a pipeline.

[0010] As a further improvement of the solution, it also includes trimming rollers. The front and rear sides of the first discharge shaft are fixedly connected with trimming rollers, and the second discharge shaft is provided with grooves that fit the two trimming rollers.

[0011] The beneficial effects are as follows: 1. The utility model provides a cooling area in the second shell to cool and shape the heated base film, thereby accelerating the forming of the base film and facilitating the rapid unloading of the base film after it returns to normal temperature.

[0012] 2. The utility model divides the interior of the shell 2 by a partition 2, and the space on the right is used for pre-cooling buffer treatment of the heated base film before it enters the cooling area on the left side of the partition, to avoid direct cooling after heating, and the base film will be uncontrollably contracted and deformed after being exposed to the cold airflow, affecting the molding effect.

[0013] 3. The utility model sets the positions of the trimming roller and the grooves to cut the base film into the size of the finished product when the base film is discharged, and continuously performs heating, shaping, cooling and cutting to the required size, thereby reducing subsequent work steps and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 The cross-sectional view of the utility model is shown without the feeding roller.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the heater, air inlet box, air outlet pipe and other components of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the utility model's discharge shaft 2, gear set, power set and other components.

[0019] Figure 6 It is a plan view schematically showing the orientation of the object to be processed by the utility model.

[0020] In the accompanying drawings: 1-bottom plate, 2-shell one, 21-shell two, 22-shell three, 3-feed roller, 30-support block, 31-guide plate, 4-feed roller, 5-heater, 6-air inlet box, 7-air outlet pipe, 8-partition one, 81-partition two, 83-cooling device, 9-discharge shaft one, 91-trimming roller, 10-discharge shaft two, 11-gear set, 12-power set, 13-circulation device, 14-sensor one, 15-sensor two, 16-warning light. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0022] Embodiment 1: A battery separator base film heating and shaping device, such as Figure 1-6As shown, it includes a bottom plate 1, a shell 1 2, a shell 21, a shell 3 22, a feed roller 3, a feed roller 4, a heater 5, an air inlet box 6, an air outlet duct 7, a partition 1 8, a partition 2 81, a cooling device 83, a discharge shaft 1 9, a discharge shaft 2 10, a gear set 11 and a power set 12. The right part of the bottom plate 1 is fixedly connected to the shell 1 2, and the interior of the shell 1 2 is used for heating and shaping the base film. The left part of the bottom plate 1 is fixedly connected to the shell 3 22 for discharging the base film and installing the power device for telescopic base film. The upper part of the shell 3 22 is fixedly connected to the shell 2 21 set as a cooling area. The left part of the shell 1 2 is fixedly connected to the right part of the shell 2 21. The shell 1 2, the shell 2 21 and the shell 3 2 2 are made of harder materials and have good heat preservation effects. Shell 1 2 and shell 2 21 are both inclined, and the inclination angles of shell 1 2 and shell 2 21 are consistent. Four feeding rollers 4 are rotatably installed in shell 1 2 and shell 2 21, and a feeding roller 4 is rotatably installed in shell 3 22. The feeding rollers 4 are all provided with grooves of consistent depth and width for limiting the position of the base film during transmission. Support blocks 30 are fixedly connected to the front and rear sides of the right part of shell 1 2. Feed rollers 3 for guiding the base film to enter shell 1 2 are rotatably installed between the support blocks 30. Feed rollers 3 rotate in shell 1 2. A heater 5 is fixedly installed at the lower part of shell 1 2. Heater 5 When working, a relatively high temperature heat flow will be generated. Two air inlet boxes 6 are fixedly connected to the heater 5. The two air inlet boxes 6 are symmetrically installed in the shell 2 front and back. A plurality of air outlet pipes 7 are evenly connected and communicated with the air inlet boxes 6. The air outlet pipes 7 open downward to avoid direct blowing on the base film on the feeding roller 4, which causes uneven heating of the base film surface and wrinkles. The heat flow generated in the heater 5 is transported to the two air inlet boxes 6 and discharged into the shell 2 through the air outlet pipe 7. The left part of the shell 2 is sealed and fixedly connected with a partition 8, the right part of the shell 21 is fixedly connected with a partition 81, and the left part of the shell 21 is fixedly installed with a cooling device 83. The cooling device 83 is connected to the inside of the shell 21 through a pipeline. A discharge shaft 19 is rotatably connected in the shell body 3 22, and a discharge shaft 2 10 is rotatably connected in the shell body 3 22 near the discharge shaft 19. The discharge shaft 19 passes through the shell body 3 22 in front, and a power group 12 is installed at the front of the shell body 3 22. The power group 12 consists of a pulley group and a transmission motor. When the transmission motor is working, the running speed is uniform and slow. The power group 12 transmits the power of the transmission motor to the discharge shaft 19 through the pulley group, and the discharging shaft 19 and the discharging shaft 2 10 are rotated in opposite directions through the engagement of the gear group 11. The base film will penetrate between the discharging shaft 19 and the discharging shaft 2 10, and will be transmitted to the outside of the device through the rotation of the discharging shaft 19 and the discharging shaft 2 10.

[0023] When the battery separator base film needs to be heated and shaped, first, refer to Figure 6 , one end of the base film transported to the vicinity of the shaping device is passed through the feed shaft into the shell 2, and the base film is passed along Figure 6 The base film is placed on the feed roller 4 on the shell 1 2 and the shell 2 21 in the direction shown. During the process, it will pass through the openings at the lower part of the partition 1 8 and the upper part of the partition 2 81 in the shell 1 2, and finally one end of the base film will pass through between the discharge shaft 1 9 and the discharge shaft 2 10. The discharge shaft 1 9 and the discharge shaft 2 10 will tightly clamp the base film, and one end of the base film will pass out from the shell 3 22. It should be noted that before heating and shaping, the base film is arranged in the groove on the feed roller 4, and the two sides of the groove can limit the base film, and the tension of the base film arranged on each feed roller 4 is kept consistent, without being too tight or too loose, and in the shell The heater 5 on the shell 2 is turned on in advance before the base film is transported to heat the internal space of the shell 2 in advance, and the hot air is transported out of the shell 2 through the air outlet pipe to ensure that the temperature of each area in the shell 2 is consistent and the heating is uniform. The heating is carried out by hot air flow to reduce the influence of temperature difference in the area and component shielding on heating during the base film transportation. After the initial work is done, the transmission motor on the power group 12 is started, and the transmission motor rotates slowly and uniformly, and the discharge shaft 9 is driven by the pulley group. Under the action of the gear group 11, the discharge shaft 10 and the discharge shaft 9 rotate synchronously and in the opposite direction, and the discharge shaft 10 rotates synchronously and in the opposite direction. The base film between the inlet and outlet shaft 19 and the outlet shaft 2 10 is driven by the rolling shafts on the upper and lower sides and is transferred to the left side outside the device, and is rolled up by an external winding device. The base film that has penetrated into the shell 1 2 is stretched a certain multiple in the longitudinal and transverse directions under the pulling force of the feeding roller 4, so that the molecular chains or crystal planes are oriented and arranged in order in the direction parallel to the film plane. The air outlet pipe 7 continuously blows out hot air to maintain the temperature in the shell 1 2. The air outlet of the air outlet pipe 7 is in a vertical state relative to the bottom side of the shell 1 2 to prevent hot air from blowing directly on the base film, causing the base film surface to be wrinkled due to the direct blowing of hot air. The base film is subjected to heat setting work by heating treatment in a taut state to fix the macromolecular structure on the base film, and then the cooling device 83 on the shell 21 is started, and the low-temperature gas in the cooling device 83 will enter the space on the left side of the partition 81 in the shell 21. The space on the right side of the partition 81 is used for pre-cooling buffer treatment of the heated base film before it enters the cooling area on the left side of the partition to avoid uncontrollable shrinkage and deformation of the heated base film after being subjected to the colder airflow. The base film is continuously transmitted in the shell 1 2 and the shell 2 21 to complete the heating and cooling work. Finally, the formed film is cooled and formed and passed out of the device for winding.

[0024] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 and Figure 6 As shown, a guide plate 31 is also included. The upper part of the support block 30 is fixedly connected with the guide plate 31. The guide plate 31 can guide the base film entering the device so that it is centrally transmitted to the feed roller 3.

[0025] like Figure 2 , Figure 3 and Figure 6 As shown, it also includes sensor 14, sensor 2 15 and warning light 16. Sensor 14 is installed at the lower right part of shell 12, and sensor 14 monitors the temperature in shell 2 in real time. Sensor 2 15 is installed at the lower left part of shell 2, and sensor 2 15 performs appearance inspection on the surface of the base film after heating and shaping. Warning light 16 is installed at the front part of shell 2, and warning light 16 is connected to sensor 14 and sensor 2 15 through signals, and warning light 16 can flash.

[0026] like Figure 1 , Figure 2 and Figure 6 As shown, a circulation device 13 is also included. The circulation device 13 is installed on the upper part of the shell 1 2. The circulation device 13 is connected and communicated with the shell 2 21 through a pipeline. The circulation device 13 is used to circulate the external normal temperature air with the air in the shell 2 21.

[0027] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, it also includes a trimming roller 91. The trimming rollers 91 are fixedly connected to the front and rear sides of the discharge shaft 1 9. The discharge shaft 2 10 is provided with grooves that match the two trimming rollers 91. The trimming rollers 91 cooperate with the grooves on the discharge shaft 10 to cut the base film during feeding. The base film can be cut to the size of the finished product by setting the positions of the trimming rollers 91 and the grooves on the discharge shaft 2 10. When the base film is being transported, the guide plate 31 can guide the base film entering the device, so that when the base film is being transported, it can avoid inconsistent tension on the base film and offset position at the entrance of the shell, which causes the base film to be unable to be centered on the feed roller 3, affecting the normal feeding of the feed roller 4. At the same time, sensor 14 monitors the temperature inside the shell 2 in real time, and sensor 2 15 performs appearance inspection on the surface of the base film after heating and shaping. When the temperature inside the shell 2 is too different from the preset value or the base film has creases or cracks, the warning light 16 outside the shell 2 will flash to remind the staff and make adjustments. When the base film is in the shell 2 When the pre-cooling area in the shell 21 is transported, the circulation device 13 will circulate the air flow in the pre-cooling area in the shell 21, and circulate the outside normal temperature air with the air in the shell 21, so as to avoid the temperature of the pre-cooling area in the shell 21 to rise when the heated base film is continuously transported, thereby affecting the pre-cooling effect. At the same time, the edge cutting roller 91 and the groove on the discharge shaft 10 will cut off the edge of the base film when the base film is discharged. The base film can be cut to the size of the finished product by adjusting the position of the edge cutting roller 91 and the groove, and the heating, shaping, cooling and winding of the required size are carried out in succession, thereby reducing the subsequent work steps and improving work efficiency.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery diaphragm base film heating and shaping device, comprising a bottom plate (1), a shell 1 (2), a shell 2 (21), a shell 3 (22), a feed roller (3), a feeding roller (4), a heater (5), an air inlet box (6), an air outlet pipe (7), a partition 1 (8) and a partition 2 (81), wherein the right part of the bottom plate (1) is fixedly connected to the shell 1 (2), the left part of the bottom plate (1) is fixedly connected to the shell 3 (22), the upper part of the shell 3 (22) is fixedly connected to the shell 2 (21), the left part of the shell 1 (2) is fixedly connected to the right part of the shell 2 (21), four feeding rollers (4) are rotatably installed in the shell 1 (2) and the shell 2 (21), and the shell 3 ( 22) is rotatably mounted with a feeding roller (4), support blocks (30) are fixedly connected to the front and rear sides of the right side of the shell one (2), a feeding roller (3) is rotatably mounted between the support blocks (30), the feeding roller (3) rotates in the shell one (2), a heater (5) is fixedly mounted at the lower part of the shell one (2), two air inlet boxes (6) are fixedly connected to the heater (5), the two air inlet boxes (6) are symmetrically mounted in the shell one (2) front and back, a plurality of air outlet pipes (7) are evenly connected and communicated with the air inlet boxes (6), a partition plate one (8) is sealed and fixedly connected to the left side of the shell one (2), and a partition plate two (81) is fixedly connected to the right side of the shell two (21); Features: The invention also comprises a cooling device (83), a discharge shaft 1 (9), a discharge shaft 2 (10), a gear set (11) and a power set (12). The cooling device (83) is fixedly installed on the left part of the shell 2 (21). The cooling device (83) is communicated with the inside of the shell 2 (21) through a pipeline. The discharge shaft 1 (9) is rotatably connected to the shell 3 (22). The discharge shaft 2 (10) is rotatably connected to the shell 3 (22) near the discharge shaft 1 (9). The discharge shaft 1 (9) passes through the shell 3 (22) at the front. The power set (12) is installed at the front part of the shell 3 (22). The power set (12) is composed of a pulley set and a transmission motor. The power set (12) transmits the power of the transmission motor to the discharge shaft 1 (9) through the pulley set, and the discharge shaft 1 (9) and the discharge shaft 2 (10) are rotated in opposite directions through the meshing of the gear set (11).

2. A battery separator base film heating and shaping device as claimed in claim 1, characterized in that: It also includes a guide plate (31), and the upper part of the support block (30) is fixedly connected to the guide plate (31).

3. A battery separator base film heating and shaping device as claimed in claim 2, characterized in that: The invention also comprises a sensor 1 (14), a sensor 2 (15) and a warning light (16). The sensor 1 (14) is installed at the lower right part of the housing 1 (2), the sensor 2 (15) is installed at the lower left part of the housing 1 (2), and the warning light (16) is installed at the front part of the housing 1 (2). The warning light (16) is connected to the sensor 1 (14) and the sensor 2 (15) through a signal.

4. A battery separator base film heating and shaping device as claimed in claim 3, characterized in that: It also includes a circulation device (13). The circulation device (13) is installed on the upper part of the shell body (2). The circulation device (13) is connected and communicated with the shell body (21) through a pipeline.

5. A battery separator base film heating and shaping device as claimed in claim 4, characterized in that: It also includes a trimming roller (91), the front and rear sides of the first discharge shaft (9) are fixedly connected with the trimming roller (91), and the second discharge shaft (10) is provided with grooves that fit with the two trimming rollers (91).

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