Pole piece diaphragm preheating assembly, preheating device and thermal compounding device

Abstract

The utility model discloses a pole piece diaphragm preheating assembly which comprises a mounting seat, roll shaft supports are arranged at the two ends of the mounting seat respectively, preheating rollers in running fit with the roll shaft supports are mounted on the roll shaft supports, and a preheating belt used for being in contact fit with a belt material is sleeved between the two preheating rollers. And a first servo motor which is in transmission connection with the preheating roller is mounted on the mounting seat. The utility model further discloses a pole piece diaphragm preheating device which comprises a preheating assembly, and the pole piece diaphragm preheating assembly is adopted as the preheating assembly. The utility model also discloses a pole piece diaphragm thermal compounding device. According to the pole piece diaphragm preheating assembly, the preheating device and the thermal compounding device, the thermal compounding efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a composite device, in particular to a pole piece diaphragm preheating component, a preheating device and a thermal composite device. Background Art

[0002] The production methods of batteries / capacitors mainly include winding and lamination. Although the winding production process has the advantages of high speed and high efficiency, the pole pieces are severely bent after winding, resulting in poor quality stability and low volume energy density of the produced batteries / capacitors. The lamination production process produces batteries / capacitors by laminating pole pieces. The pole piece size can be precisely processed in advance, and the battery / capacitor products produced have a regular appearance, so the product performance is good. However, since the production efficiency of lamination is lower than that of winding, it seriously affects the development of the lamination process.

[0003] Specifically, in the existing thermal lamination technology, the pole piece and the diaphragm are first heated by a heating device, and then the pressure applied by the lamination roller group is used to laminate the pole piece and the diaphragm together to form a composite strip with a certain thickness. In the existing technology, since the pole piece is heated by radiation, the pole piece needs a long heating time, which reduces the conveying speed of the pole piece and the diaphragm, and limits the overall production efficiency of the lamination process. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a pole piece diaphragm preheating assembly, a preheating device and a thermal composite device, which can effectively improve the thermal composite efficiency.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model firstly proposes a pole piece diaphragm preheating assembly, comprising a mounting seat, wherein roller supports are respectively provided at both ends of the mounting seat, a preheating roller which is rotatably matched with the roller supports is mounted on the roller supports, a preheating belt which is used for contacting and matching with the strip is sleeved between the two preheating rollers, and a first servo motor which is transmission-connected to the preheating roller is mounted on the mounting seat.

[0007] Furthermore, the preheating assembly also includes a plurality of first radiation heating devices for heating the preheating belt.

[0008] Furthermore, the preheating assembly also includes a plurality of second radiation heating devices arranged on the other side of the strip opposite to the preheating strip.

[0009] Furthermore, the mounting seat is also provided with a first tension adjustment mechanism for adjusting the tension of the preheating belt.

[0010] Furthermore, the preheating roller is a hollow preheating roller, a first electric heating device is provided inside the preheating roller, and a first electric slip ring for supplying power to the first electric heating device is provided at one end of the preheating roller.

[0011] The utility model also proposes a pole piece diaphragm preheating device, comprising a preheating component, wherein the preheating component adopts the pole piece diaphragm preheating component as described above.

[0012] Furthermore, the preheating assembly comprises an upper preheating assembly located above the strip and a lower preheating assembly located below the strip, and the upper preheating assembly and the lower preheating assembly are staggered.

[0013] Furthermore, the upper preheating component is set to at least one, and the lower preheating component is set to at least one.

[0014] Furthermore, the upper preheating components and the lower preheating components are arranged alternately.

[0015] The utility model also proposes a pole piece diaphragm thermal composite device, comprising a preheating section located on the upstream side and a composite section located on the downstream side; the preheating section comprises a driving assembly and a preheating device, and the composite section comprises a composite assembly; the driving assembly is used to drive the strip to move, and the composite assembly is used to thermally composite the preheated strip; the preheating device is used to preheat the strip, and the preheating device adopts the pole piece diaphragm preheating device as described above.

[0016] Furthermore, it also includes a second tension adjustment mechanism for adjusting the tension of the strip.

[0017] The beneficial effects of the utility model are:

[0018] The pole piece diaphragm preheating device of the utility model utilizes a preheating component to preheat the strip; specifically, during operation, a first servo motor is utilized to drive the preheating roller to rotate, so that the speed of the preheating belt is consistent with the feeding speed of the strip, and the strip is brought into contact with the preheating belt, and the heat of the preheating belt is transferred to the strip through contact heat transfer, so that the strip is quickly heated to a set temperature.

[0019] The pole piece diaphragm thermal composite device of the utility model drives the strip to feed forward by arranging a driving component in the preheating section, and heats the strip by arranging a preheating device in the preheating section; specifically, the driving roller group drives the strip to feed forward, and drives the preheating roller to rotate at the same time, so that the speed of the preheating belt is consistent with the feeding speed of the strip, and the strip is brought into contact with the preheating belt, and the heat of the preheating belt is transferred to the strip through contact heat transfer, so that the strip is quickly heated to a set temperature; the strip heated to the set temperature is transported to the composite component to be composited into one; in this way, since the heating speed of the strip is improved, the thermal composite efficiency can be effectively improved.

[0020] The utility model also has the following technical effects:

[0021] The strip is composed of two layers of diaphragms with a pole piece located between the two layers of diaphragms. By staggering the upper preheating assembly and the lower preheating assembly, it is possible to avoid the preheating belt from exerting a large pressure on the strip, thereby preventing the diaphragm from wrinkling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model provides the following drawings for explanation:

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the pole piece diaphragm thermal composite device of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the preheating component;

[0025] Figure 3 It is a structural schematic diagram of the second tension adjustment mechanism.

[0026] Description of reference numerals:

[0027] 100-preheating assembly; 101-mounting seat; 102-roller support; 103-preheating roller; 104-preheating belt; 105-first radiation heating device; 106-second radiation heating device; 107-tension support; 108-vertical slide; 109-tension roller; 110-auxiliary roller; 111-first electric slip ring;

[0028] 200-driving assembly;

[0029] 301-tension roller frame; 302-tension roller; 303-second vertical track; 304-second slider; 305-tension roller seat; 306-tension adjustment frame; 307-tension adjustment cylinder;

[0030] 400 - Composite components. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0032] like Figure 1 As shown, the pole piece diaphragm thermal composite device of this embodiment includes a preheating section located on the upstream side and a composite section located on the downstream side. The preheating section includes a drive assembly 200 and a preheating device, and the composite section includes a composite assembly 400. Specifically, the drive assembly 200 is used to drive the strip 1 to move, the preheating device is used to heat the strip 1, and the composite assembly 400 is used to thermally composite the preheated strip 1. In this embodiment, two drive assemblies 200 are provided, and the preheating device is provided between the two drive assemblies 200.

[0033] Specifically, in this embodiment, the preheating device includes a preheating component 100. Specifically, the preheating component 100 of this embodiment adopts a pole piece diaphragm preheating component (hereinafter referred to as "preheating component"). Figure 2 As shown, the preheating assembly 100 includes a mounting seat 101, and roller supports 102 are respectively provided at both ends of the mounting seat 101. Preheating rollers 103 are mounted on the roller supports 102 to rotate with them, and a preheating belt 104 for contacting and cooperating with the strip 1 is set between the two preheating rollers 103. A first servo motor (not shown in the figure) that is transmission-connected to the preheating rollers 103 is installed on the mounting seat 101. In this embodiment, the preheating assembly 100 also includes a plurality of first radiation heating devices 105 for heating the preheating belt 104, so that the temperature of the preheating belt 104 is maintained within a set range. In this embodiment, the preheating component 101 also includes a plurality of second radiation heating devices 106 arranged on the other side of the strip 1 opposite to the preheating belt 104. The second radiation heating device 106 is used to directly perform non-contact heating on the strip 1. In this way, one side of the strip 1 is heated by contact with the preheating belt 104, and the other side is heated by non-contact with the second radiation heating device 106. By heating both sides of the strip 1 at the same time, the heating efficiency of the strip 1 can be improved.

[0034] In order to keep the tension of the preheating belt 104, the mounting seat 101 is also provided with a first tension adjustment mechanism for adjusting the tension of the preheating belt 104. Specifically, the first tension adjustment mechanism includes a tension support 107, and a vertical slide groove 108 is provided on the tension support 107, and a tension roller 109 is provided in the vertical slide groove 108. In this way, the tension of the preheating belt 104 is adjusted by adjusting the position of the tension roller 109 in the vertical slide groove 108 by utilizing the gravity of the tension roller 109 or installing an elastic element (not shown in the figure) on the tension support 107 to apply a flexible force to the tension roller 109. In this embodiment, auxiliary rollers 110 are also provided on both sides of the tension roller 109.

[0035] In this embodiment, the preheating roller 103 is a hollow preheating roller. A first electric heating device (not shown in the figure) is provided inside the preheating roller 103. A first electric slip ring 111 for supplying power to the first electric heating device is provided at one end of the preheating roller 103. The preheating roller 103 is heated by the first electric heating device to keep the temperature of the preheating roller 103 within a set range, thereby avoiding the preheating roller 103 absorbing heat from the preheating belt 104 due to the preheating roller 103 being too low in temperature, thereby ensuring that the temperature of the preheating belt 104 is more stable.

[0036] In this embodiment, the preheating device includes an upper preheating assembly located above the strip 1 and a lower preheating assembly located below the strip. The upper preheating assembly and the lower preheating assembly are offset from each other, so that the temperature consistency of the upper and lower sides of the strip 1 can be ensured. In particular, in this embodiment, the strip 1 includes two layers of diaphragms, and a pole piece is provided between the two layers of diaphragms. If the upper preheating assembly and the lower preheating assembly are aligned, the strip 1 is pressed and fixed between the two layers of preheating belts 104, which may easily cause defects such as wrinkles on the diaphragm on the surface of the strip 1; that is, in this embodiment, by offsetting the upper preheating assembly and the lower preheating assembly, the contact force between the strip 1 and the preheating belt 104 is small, which can meet the requirements of contact heat transfer and avoid wrinkles on the diaphragm on the surface of the strip 1. In this embodiment, the upper preheating component and the lower preheating component are respectively set to one. Of course, in some other embodiments, the upper preheating component and the lower preheating component can also be set to two or more. At this time, the upper preheating component and the lower preheating component are staggered to ensure that the heating temperature of the upper and lower surfaces of the strip is consistent.

[0037] The electrode diaphragm thermal composite device of this embodiment further includes a second tension adjustment mechanism for adjusting the tension of the strip 1. Figure 3As shown, the second tension adjustment mechanism of this embodiment includes a tension roller frame 301 and a tension roller 302. The tension roller frame 301 is provided with second vertical rails 303 respectively located at both ends of the tension roller 302, and the second vertical rail 303 is provided with a second slider 304 that slidably cooperates with the tension roller frame 303. The second slider 304 is provided with a tension roller seat 305, and both ends of the tension roller 302 are respectively rotatably cooperated with the tension roller seat 305. A tension adjustment frame 306 is provided between the two second sliders 304, and a tension adjustment cylinder 307 is installed on the tension roller frame 301, and the piston rod of the tension adjustment cylinder 307 is fixedly connected to the tension adjustment frame 306.

[0038] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A pole piece diaphragm preheating assembly, characterized in that: It includes a mounting seat, with roller supports at both ends of the mounting seat respectively, a preheating roller that rotates with the roller support is installed on the roller support, a preheating belt that contacts and cooperates with the strip is sleeved between the two preheating rollers, and a first servo motor that is transmission-connected to the preheating roller is installed on the mounting seat.

2. The electrode diaphragm preheating assembly according to claim 1, characterized in that: The preheating assembly further comprises a plurality of first radiation heating devices for heating the preheating belt.

3. The pole piece diaphragm preheating assembly according to claim 1, characterized in that: The preheating assembly further comprises a plurality of second radiation heating devices arranged on the other side of the strip opposite to the preheating strip.

4. The pole piece diaphragm preheating assembly according to claim 1, characterized in that: The mounting seat is also provided with a first tension adjustment mechanism for adjusting the tension of the preheating belt.

5. The pole piece diaphragm preheating assembly according to claim 1, characterized in that: The preheating roller is a hollow preheating roller, a first electric heating device is arranged inside the preheating roller, and a first electric slip ring for supplying power to the first electric heating device is arranged at one end of the preheating roller.

6. A pole piece diaphragm preheating device, characterized in that: It comprises a preheating component, and the preheating component adopts the pole piece diaphragm preheating component as described in any one of claims 1-5.

7. The electrode diaphragm preheating device according to claim 6, characterized in that: The preheating assembly comprises an upper preheating assembly located above the strip and a lower preheating assembly located below the strip, and the upper preheating assembly and the lower preheating assembly are staggered.

8. The electrode diaphragm preheating device according to claim 7 is characterized in that: The number of the upper preheating component is at least one, and the number of the lower preheating component is at least one.

9. The electrode diaphragm preheating device according to claim 8, characterized in that: The upper preheating components and the lower preheating components are arranged alternately.

10. A pole piece and diaphragm thermal composite device, characterized in that: It includes a preheating section located on the upstream side and a compounding section located on the downstream side; the preheating section includes a driving assembly and a preheating device, and the compounding section includes a compounding assembly; the driving assembly is used to drive the strip to move, and the compounding assembly is used to thermally compound the preheated strip; the preheating device is used to preheat the strip, and the preheating device adopts the electrode diaphragm preheating device as described in any one of claims 6 to 9.

11. The pole piece and diaphragm thermal composite device according to claim 10, characterized in that: A second tension adjustment mechanism for adjusting the tension of the strip is also included.

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