Diaphragm thinning device

Abstract

The utility model relates to the technical field of diaphragm processing, in particular to a diaphragm thinning device which comprises an unwinding assembly, a winding assembly, a thinning assembly and a mold temperature assembly. The multiple sets of thinning assemblies are arranged, and the thinning assemblies are provided with gaps allowing the membranes to pass through and used for thinning the membranes. The unwinding assembly, the thinning assembly and the winding assembly are sequentially arranged in the conveying direction of a membrane. The mold temperature assembly communicates with the thinning assembly and is used for adjusting the temperature of the thinning assembly. The problem that the performance of a supercapacitor is affected due to the fact that the uniformity of the thickness of the activated carbon membrane is difficult to effectively guarantee because a single group of roller presses are usually adopted for extrusion membrane forming in the preparation of the activated carbon membrane is solved.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm processing technology, specifically to a diaphragm thinning device. Background Technology

[0002] Supercapacitors, with their high power density and rapid charge / discharge characteristics, are widely used in various fields, and activated carbon membranes play a crucial role in supercapacitors. The thickness uniformity of the activated carbon membrane has a significant impact on the performance of supercapacitors. First, poor thickness uniformity may lead to uneven charge distribution, affecting energy density and power density. Second, uneven thickness may increase internal resistance and reduce charge / discharge efficiency. Furthermore, inconsistent thickness may also affect the contact between the electrodes and the electrolyte, further degrading performance. Therefore, ensuring the uniformity of activated carbon membrane thickness is essential for improving the performance of supercapacitors.

[0003] In related technologies, the preparation of activated carbon membranes typically involves extrusion using a single set of roller presses, which makes it difficult to effectively ensure the uniformity of the activated carbon membrane thickness, thus affecting the performance of supercapacitors. Utility Model Content

[0004] This invention provides a membrane thinning device, which solves the problem that in the preparation of activated carbon membranes, a single set of roller presses is usually used for extrusion film formation, which makes it difficult to effectively ensure the uniformity of the activated carbon membrane thickness, thereby affecting the performance of supercapacitors.

[0005] In view of this, the present invention provides a film thinning device, including an unwinding assembly, a winding assembly, a thinning assembly, and a mold temperature assembly; the thinning assembly is provided in multiple sets, and the thinning assembly has a slit for the film to pass through, for thinning the film;

[0006] The unwinding assembly, the thinning assembly, and the winding assembly are arranged sequentially along the conveying direction of the film;

[0007] The mold temperature component is connected to the thinning component and is used to adjust the temperature of the thinning component.

[0008] In one optional embodiment, the thinning component includes a frame, a first pressure roller, a second pressure roller, and a drive component. Both the first and second pressure rollers are connected to the mold temperature component. The first and second pressure rollers are arranged parallel to each other. Both ends of the first pressure roller are connected to the frame via first bearing seats, and both ends of the second pressure roller are connected to the frame via second bearing seats. The first and second pressure rollers are spaced apart in the vertical direction to form the gap. The first bearing seat is slidably connected to the frame in the vertical direction and is driven to move in the vertical direction by the drive component.

[0009] In one optional embodiment, the thinning component further includes a first drive motor and a second drive motor disposed on the frame. The first drive motor is driven connected to the first pressure roller and is used to drive the first pressure roller to rotate. The second drive motor is driven connected to the second pressure roller and is used to drive the second pressure roller to rotate.

[0010] In one optional embodiment, the driving component is a lifting cylinder, and the cylinder shaft of the lifting cylinder is drivenly connected to the first bearing seat.

[0011] In one optional embodiment, the frame includes a base and two upright plates spaced apart on the base, with the first pressure roller and the second pressure roller both disposed between the two upright plates; the upright plates are provided with a vertical groove, the first bearing seat is slidably connected in the groove, and limiting plates are provided on both sides of the upright plates corresponding to the groove; the position of the limiting plates corresponds to the position of the first bearing seat, and is used to limit the first bearing seat in the axial direction of the first pressure roller.

[0012] In one optional embodiment, the first pressure roller and the second pressure roller have the same structure; the first pressure roller has a first cavity and a second cavity axially arranged inside it, and the first cavity covers the outside of the second cavity; one end of the first pressure roller and the second pressure roller are provided with a rotary joint; one end of the first cavity is connected to the medium inlet of the rotary joint, and the other end is connected to the second cavity; the end of the second cavity near the rotary joint is connected to the medium outlet of the rotary joint; the medium outlet and the medium inlet are both connected to the mold temperature assembly to form a circulation pipeline.

[0013] In one alternative implementation, the thinning components are provided in two sets.

[0014] In an optional embodiment, a tension adjustment component is further included, wherein a set of tension adjustment components is provided between the unwinding component and the thinning component, between two adjacent sets of the thinning components, and between the thinning component and the winding component, for adjusting the tension of the film.

[0015] In one optional embodiment, the tension adjustment assembly includes a swing roller, a guide roller, and a tension sensor; the swing roller and the guide roller are disposed on the conveying path of the diaphragm; the tension sensor is disposed on the guide roller and is communicatively connected to the swing roller, for cooperating with the swing roller to adjust the tension of the diaphragm.

[0016] In one optional embodiment, the mold temperature assembly includes multiple mold temperature controllers, with one mold temperature controller corresponding to each group of thinning components. The mold temperature controllers are connected to the thinning components and are used to adjust the temperature of the thinning components.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. In this utility model, by setting multiple sets of thinning components between the winding component and the unwinding component, the film is subjected to multiple compression and thinning processes through the gaps of the multiple sets of thinning components, which effectively ensures the consistency of the film thickness.

[0019] 2. In this utility model, the thinning component is heated by the mold temperature component to further improve the quality of the formed film, thereby ensuring the performance of the supercapacitor. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a diaphragm thinning device provided by this utility model;

[0022] Figure 2 A schematic diagram of the thinning component provided by this utility model;

[0023] Figure 3 A schematic diagram of the internal structure of the first pressure roller provided by this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Unwinding assembly; 2. Rewinding assembly; 3. Thinning assembly; 301. First pressure roller; 302. Second pressure roller; 303. Drive component; 304. First bearing housing; 305. Second bearing housing; 306. First drive motor; 307. Second drive motor; 308. Vertical plate; 309. Limiting plate; 4. Mold temperature assembly; 5. Diaphragm; 6. Tension adjustment assembly; 7. Rotary joint; 8. Medium inlet; 9. Medium outlet; 10. First cavity; 11. Second cavity. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a film thinning device is provided, including an unwinding assembly 1, a winding assembly 2, a thinning assembly 3, and a mold temperature assembly 4; multiple sets of thinning assemblies 3 are provided, and each thinning assembly 3 has a gap for the film 5 to pass through, for thinning the film 5; the unwinding assembly 1, the thinning assembly 3, and the winding assembly 2 are arranged sequentially along the conveying direction of the film 5; the mold temperature assembly 4 is connected to the thinning assembly 3 and is used to adjust the temperature of the thinning assembly 3.

[0032] In this embodiment, the film 5 is conveyed by the winding assembly 2 and the unwinding assembly 1. At the same time, multiple sets of thinning assemblies 3 are set between the winding assembly 2 and the unwinding assembly 1. The film 5 is subjected to multiple compression and thinning processes through the gaps of the multiple sets of thinning assemblies 3, which effectively ensures the consistency of the film 5 thickness. The number of thinning assemblies 3 can be set according to specific conditions. Compared with the setting of a single set of roller press, the uniformity of the thickness of the formed film 5 is effectively improved. At the same time, the thinning assemblies 3 are heated by the mold temperature assembly 4, which further improves the quality of the formed film 5, thereby ensuring the performance of the supercapacitor.

[0033] In one embodiment, such as Figure 2As shown, the thinning component 3 includes a frame, a first pressure roller 301, a second pressure roller 302, and a drive component 303. Both the first pressure roller 301 and the second pressure roller 302 are connected to the mold temperature component 4. The first pressure roller 301 and the second pressure roller 302 are arranged in parallel. Both ends of the first pressure roller 301 are connected to the frame through a first bearing seat 304, and both ends of the second pressure roller 302 are connected to the frame through a second bearing seat 305. The first pressure roller 301 and the second pressure roller 302 are spaced apart in the vertical direction to form a gap. The first bearing seat 304 is slidably connected to the frame in the vertical direction and is driven to move in the vertical direction by the drive component 303.

[0034] It should be noted that the drive unit 303 is mounted on the frame, and the output end of the drive unit 303 is drivenly connected to the first bearing housing 304.

[0035] In this embodiment, the first pressure roller 301 is rotatably mounted on the frame via the first bearing seat 304, and the second pressure roller 302 is rotatably mounted on the frame via the second bearing seat 305, so as to form a gap for the diaphragm 5 to pass through and to rotatably press and shape the diaphragm 5. At the same time, according to the thickness of the formed diaphragm 5, the first bearing seat 304 is driven to slide vertically on the frame via the drive member 303, thereby adjusting the size of the gap between the first pressure roller 301 and the second pressure roller 302 and improving the applicability.

[0036] Specifically, two drive components 303 are provided, and the two drive components 303 are respectively drivenly connected to the two first bearing seats 304.

[0037] In one embodiment, such as Figure 2 As shown, the thinning component 3 also includes a first drive motor 306 and a second drive motor 307 mounted on the frame. The first drive motor 306 is driven to the first pressure roller 301 and is used to drive the first pressure roller 301 to rotate. The second drive motor 307 is driven to the second pressure roller 302 and is used to drive the second pressure roller 302 to rotate.

[0038] In this embodiment, the rotation of the first pressure roller 301 and the second pressure roller 302 can be adjusted by the first drive motor 306 and the second drive motor 307 respectively, so as to thin the film 5 by pressure rollers and improve the consistency of thickness.

[0039] Specifically, such as Figure 2 As shown, the output end of the first drive motor 306 is driven and connected to the first pressure roller 301 through the first universal joint drive shaft, and the output end of the second drive motor 307 is driven and connected to the second pressure roller 302 through the second universal joint drive shaft, so as to facilitate transmission and at the same time have a certain degree of freedom to adjust the first pressure roller 301 to move, thereby improving the flexibility of adjustment and the stability during the transmission process.

[0040] In one embodiment, such as Figure 2 As shown, the driving component 303 is a lifting cylinder, and the cylinder shaft of the lifting cylinder is drivenly connected to the first bearing seat 304.

[0041] In this embodiment, the drive component 303 adopts a lifting cylinder to improve the stability of adjustment.

[0042] In one embodiment, such as Figure 2 As shown, the frame includes a base and two vertical plates 308 spaced apart on the base. The first pressure roller 301 and the second pressure roller 302 are both disposed between the two vertical plates 308. The vertical plates 308 are provided with grooves along the vertical direction. The first bearing seat 304 is slidably connected in the grooves. The two sides of the vertical plates 308 are provided with limiting plates 309 corresponding to the grooves. The position of the limiting plates 309 corresponds to the position of the first bearing seat 304 and is used to limit the first bearing seat 304 in the axial direction of the first pressure roller 301.

[0043] In this embodiment, both ends of the first pressure roller 301 are slidably connected to the grooves of the two vertical plates 308 through the first bearing seat 304, and both ends of the second pressure roller 302 are connected to the grooves of the two vertical plates 308 through the second bearing seat 305. At the same time, limiting plates 309 are provided on both sides of the vertical plates 308 to limit the first bearing seat 304 along the axial direction of the first pressure roller 301, further improving the stability of the first bearing seat 304 during the sliding process of the driving component 303 driving the first bearing seat 304.

[0044] In one embodiment, such as Figure 3 As shown, the first pressure roller 301 and the second pressure roller 302 have the same structure; the first pressure roller 301 has a first cavity 10 and a second cavity 11 axially arranged inside, and the first cavity 10 covers the outside of the second cavity 11; one end of the first pressure roller 301 and the second pressure roller 302 are provided with a rotary joint 7; one end of the first cavity 10 is connected to the medium inlet 8 of the rotary joint 7, and the other end is connected to the second cavity 11; the end of the second cavity 11 near the rotary joint 7 is connected to the medium outlet 9 of the rotary joint 7; the medium outlet 9 and the medium inlet 8 are both connected to the mold temperature component 4 to form a circulation pipeline.

[0045] It should be noted that the rotary joint 7 on the first pressure roller 301 is located at the end of the first pressure roller 301 that is away from the first drive motor 306, and the rotary joint 7 on the second pressure roller 302 is located at the end of the second pressure roller 302 that is away from the second drive motor 307.

[0046] In this embodiment, both the first pressure roller 301 and the second pressure roller 302 are connected to the mold temperature component 4 via rotary joints 7, so that the temperature medium can be input during the rotation of the first pressure roller 301 and the second pressure roller 302. The temperature medium in the mold temperature component 4 is input to the medium inlet 8 through the output end of the mold temperature component 4, and then input to the first cavity 10 through the medium inlet 8 for temperature regulation. The temperature medium then flows back to the input end of the mold temperature component 4 through the second cavity 11 and the medium outlet 9 to complete the circulation of the temperature medium and realize temperature regulation.

[0047] In one embodiment, such as Figure 1 As shown, the thinning component 3 is provided in two sets.

[0048] In this embodiment, the number of thinning components 3 is not specifically limited. Preferably, two sets of thinning components 3 are provided to improve the consistency of the thickness of the membrane 5 and avoid waste caused by setting too many. The specific number of thinning components 3 can be set according to actual needs.

[0049] In one embodiment, such as Figure 2 As shown, the membrane thinning device also includes a tension adjustment component 6. A tension adjustment component 6 is provided between the unwinding component 1 and the thinning component 3, between the two adjacent sets of thinning components 3 and between the thinning component 3 and the winding component 2, for adjusting the tension of the membrane 5.

[0050] In this embodiment, tension adjustment components 6 are provided between the unwinding component 1 and the thinning component 3, between two adjacent sets of thinning components 3, and between the thinning component 3 and the winding component 2, so as to adjust the tension of the film 5 in a timely manner during the conveying process, so that the tension of the film 5 during the conveying process meets the requirements, thereby ensuring the quality and efficiency of the film 5 forming.

[0051] In one embodiment, such as Figure 1 As shown, the tension adjustment assembly 6 includes a swing roller, a guide roller, and a tension sensor; the swing roller and the guide roller are arranged on the conveying path of the diaphragm 5; the tension sensor is arranged on the guide roller and is communicatively connected to the swing roller, and is used to adjust the tension of the diaphragm 5 in conjunction with the swing roller.

[0052] In this embodiment, the swing roller and the guide roller are set on the conveying path of the diaphragm 5. When the diaphragm 5 is conveyed, it passes through the guide roller and the swing roller. The tension of the diaphragm 5 is detected in real time by the tension sensor on the guide roller, and the tension information is fed back to the swing roller. By setting a tension threshold, when the detected actual tension value meets the tension threshold, there is no need to adjust the tension of the diaphragm 5; when the detected actual tension value does not meet the tension threshold, the tension of the diaphragm 5 is adjusted by the swing roller so that the tension of the diaphragm 5 meets the requirements and ensures the forming quality of the diaphragm 5.

[0053] In one embodiment, such as Figure 1 As shown, the mold temperature assembly 4 includes multiple mold temperature controllers. Each group of thinning components 3 is equipped with a corresponding mold temperature controller. The mold temperature controllers are connected to the thinning components 3 and are used to adjust the temperature of the thinning components 3.

[0054] In this embodiment, each group of thinning components 3 is equipped with a mold temperature controller to regulate the temperature of the thinning components 3 and improve the thinning effect.

[0055] Specifically, the mold temperature controller is provided with a first outlet and a second outlet for outputting the temperature medium, corresponding to the first pressure roller 301 and the second pressure roller 302, respectively. The first outlet and the second outlet are respectively connected to the medium inlet 8 of the two rotary joints 7 through pipes. The mold temperature controller is provided with a first inlet and a second inlet for circulating the temperature medium, corresponding to the first pressure roller 301 and the second pressure roller 302, respectively. The first inlet and the second inlet are respectively connected to the medium outlet 9 of the two rotary joints 7 through pipes to form a circulation pipeline.

[0056] Specifically, such as Figure 1 As shown, the temperature control machine is connected to the first pressure roller 301 and the second pressure roller 302 to adjust the temperature of the first pressure roller 301 and the second pressure roller 302 and improve the quality of the pressure rollers.

[0057] Specifically, the swing roller is positioned upstream of the passing roller to facilitate adjustment of the diaphragm tension based on the tension detected by the tension sensor.

[0058] Specifically, the unwinding assembly 1 includes an unwinding shaft and a first frame. The unwinding shaft is disposed on the first frame, and the thinned film 5 is wound onto the unwinding shaft.

[0059] Specifically, the winding assembly 2 includes a winding shaft and a second frame. The winding shaft is disposed on the second frame, and the thinned film 5 is wound onto the winding shaft.

[0060] The specific working principle of the membrane thinning device provided in this embodiment is as follows: The membrane 5 is unwound from the unwinding shaft and passes through the gaps in multiple sets of thinning components 3 in sequence. It is then thinned by the first pressure roller 301 and the second pressure roller 302 in cooperation with the pressure rollers. Then it is wound onto the winding shaft to complete the thinning of the membrane 5 and improve the uniformity of the membrane thickness. During this process, the temperature medium can be output from the mold temperature controller to the first pressure roller 301 and the second pressure roller 302 for circulation to regulate the temperature. At the same time, the tension of the membrane 5 during the conveying process is adjusted by the tension regulating component 6 to ensure the forming quality of the membrane 5. This solves the problem that in the preparation of activated carbon membrane 5, a single set of roller press is usually used for extrusion film formation, which makes it difficult to effectively ensure the uniformity of the thickness of the activated carbon membrane 5, thus affecting the performance of the supercapacitor.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A membrane thinning device, characterized by, The application relates to a film sheet thinning device, which comprises a film unwinding assembly (1), a film winding assembly (2), a film thinning assembly (3) and a mold temperature assembly (4); the film thinning assembly (3) is provided with multiple groups, and has a gap for the film sheet (5) to pass through and for the film sheet (5) to be thinned; The film unwinding assembly (1), the film thinning assembly (3) and the film winding assembly (2) are sequentially arranged along the conveying direction of the film sheet (5); The mold temperature assembly (4) is communicated with the film thinning assembly (3) and is used for adjusting the temperature of the film thinning assembly (3).

2. The membrane thinning device of claim 1, wherein The film thinning assembly (3) comprises a rack, a first compression roller (301), a second compression roller (302) and a driving member (303); the first compression roller (301) and the second compression roller (302) are communicated with the mold temperature assembly (4); the first compression roller (301) is parallel to the second compression roller (302); the two ends of the first compression roller (301) are connected with the rack through first bearing seats (304), and the two ends of the second compression roller (302) are connected with the rack through second bearing seats (305); the first compression roller (301) and the second compression roller (302) are spaced apart in the vertical direction to form the gap; the first bearing seat (304) is slidingly connected with the rack in the vertical direction and is driven to move in the vertical direction by the driving member (303).

3. The membrane thinning device of claim 2, wherein The film thinning assembly (3) further comprises a first driving motor (306) and a second driving motor (307) arranged on the rack; the first driving motor (306) is drivingly connected with the first compression roller (301) and is used for driving the first compression roller (301) to rotate; the second driving motor (307) is drivingly connected with the second compression roller (302) and is used for driving the second compression roller (302) to rotate.

4. The membrane thinning device of claim 2, wherein The driving member (303) is a lifting cylinder, and the cylinder shaft of the lifting cylinder is drivingly connected with the first bearing seat (304).

5. The membrane thinning device of claim 2, wherein The rack comprises a base and two vertical plates (308) which are spaced apart on the base; the first compression roller (301) and the second compression roller (302) are arranged between the two vertical plates (308); the vertical plate (308) is provided with a sliding groove in the vertical direction, the first bearing seat (304) is slidingly connected in the sliding groove, and the two sides of the vertical plate (308) are provided with limiting plates (309) corresponding to the sliding groove; the positions of the limiting plates (309) correspond to the positions of the first bearing seat (304) and the first bearing seat (304) is limited in the axial direction of the first compression roller (301).

6. The membrane thinning device of claim 2, wherein The first compression roller (301) and the second compression roller (302) are of the same structure; the first compression roller (301) is provided with a first cavity (10) and a second cavity (11) in the axial direction, and the first cavity (10) is wrapped outside the second cavity (11); one end of the first compression roller (301) and the second compression roller (302) is provided with a rotary joint (7); one end of the first cavity (10) is in communication with a medium inlet (8) of the rotary joint (7), and the other end is in communication with the second cavity (11); one end of the second cavity (11) close to the rotary joint (7) is in communication with a medium outlet (9) of the rotary joint (7); the medium outlet (9) and the medium inlet (8) are in communication with the mold temperature assembly (4) to form a circulating pipeline.

7. The membrane thinning device according to any one of claims 1 to 6, wherein The thinning assembly (3) is provided with two groups.

8. The membrane thinning device according to any one of claims 1 to 6, characterized in that, Further comprising a tension adjusting assembly (6), and one group of the tension adjusting assembly (6) is arranged between the unwinding assembly (1) and the thinning assembly (3), two groups of adjacent thinning assemblies (3), and the thinning assembly (3) and the winding assembly (2), for adjusting the tension of the film sheet (5).

9. The membrane thinning device of claim 8, wherein, The tension adjusting assembly (6) comprises a swing roller, a passing roller and a tension sensor; the swing roller and the passing roller are arranged on the conveying path of the film sheet (5); the tension sensor is arranged on the passing roller and is in communication connection with the swing roller, for cooperating with the swing roller to adjust the tension of the film sheet (5).

10. The membrane thinning device of claim 1, wherein The mold temperature assembly (4) comprises a plurality of mold temperature machines, and one mold temperature machine is arranged corresponding to each group of the thinning assembly (3); the mold temperature machine is in communication with the thinning assembly (3) for adjusting the temperature of the thinning assembly (3).

Images