Tension detection structure used in sealed extraction tank

Abstract

The utility model relates to a tension detection structure used in a sealed extraction tank. The tension detection structure is installed on a wall plate in the extraction tank. The tension detection structure comprises a bearing seat, a tension roller and a tension sensor; the bearing seat is installed on the tension sensor, and tension roller shafts at the two tail ends of the tension roller are connected into bearing inner holes of the bearing seat respectively; when the diaphragm passes through the tension roller, the tension sensors at the two ends detect the diaphragm tension value between the extraction tanks. The tension detection structure is installed in each stage of extraction tank of an extraction system and can detect the tension of a diaphragm between each stage of tank in the extraction tank, the bearing seat is installed on the tension sensor, and the bearing inner hole of the bearing seat is connected with the tension roller shaft at the tail end of the tension roller; when the diaphragm passes through the tension roller, the tension sensors at the two ends can detect the diaphragm tension value between the extraction tanks.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detection devices, in particular to a tension detection structure for a sealed extraction tank. BACKGROUND

[0002] In a wet lithium battery diaphragm production process, the extraction tank in an extraction system is closed, and the tension of the diaphragm between the stages in the extraction tank affects the production efficiency of the diaphragm production line and the quality of the diaphragm. The prior art mainly adds passive tension rollers as tension detection mechanisms to detect the diaphragm tension before and after the extraction system, but cannot detect the diaphragm tension inside the extraction system.

[0003] Therefore, it is necessary to develop a tension detection structure for a sealed extraction tank to overcome the above difficulties. CONTENT OF THE UTILITY MODEL

[0004] The application aims to at least solve one of the technical problems existing in the prior art. To this end, the application provides a tension detection structure for a sealed extraction tank.

[0005] The application provides a tension detection structure for a sealed extraction tank, which is installed on a wall plate inside the extraction tank; the tension detection structure comprises a bearing seat, a tension roller and a tension sensor; the bearing seat is installed on the tension sensor, and the tension roller shafts at both ends of the tension roller are connected in the bearing inner holes of the bearing seat; wherein the tension sensors at both ends detect the diaphragm tension value between the extraction tanks when the diaphragm passes through the tension roller.

[0006] Optionally, the tension roller is set as a driven tension roller, which can rotate under the action of external power to provide auxiliary power required for producing the diaphragm and detect the diaphragm tension.

[0007] Optionally, the tension detection structure further comprises a driving motor, the output shaft of the driving motor is connected with the tension roller shaft at one end of the tension roller, and the driving motor is used for driving the tension roller to rotate in the bearing inner hole.

[0008] Optionally, the output shaft of the driving motor is connected with the tension roller shaft of the tension roller through a shaft coupling.

[0009] Optionally, the tension sensor has one bottom mounting hole on each of the left and right sides of the bottom, and the bottom mounting holes are used for fixing the tension sensor on a sensor fixing seat.

[0010] Optionally, the sensor fixing seat is installed on the wall plate of the extraction tank through a connecting seat; the connecting seat and the wall plate of the extraction tank are detachably connected.

[0011] Optionally, the connecting seat comprises a side connecting seat and a bottom connecting seat connected with the side connecting seat; the sensor fixing seat is in an L shape as a whole, the bottom of the sensor fixing seat is detachably connected to the bottom connecting seat, and the side of the sensor fixing seat is connected to the side connecting seat; and the side connecting seat is connected to the wall plate of the extraction tank by bolts.

[0012] Optionally, the side connecting seat is arranged outside the bearing seat, and a sealing member is arranged between the side connecting seat and the bearing seat.

[0013] Optionally, the sealing member is a sealing ring.

[0014] Optionally, the sealing ring is a fluororubber sealing ring.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] In the tension detection structure for sealing the extraction tank, the tension detection structure is installed in each stage of the extraction tank of the extraction system to detect the tension of the diaphragm between each stage of the extraction tank. Specifically, two tension sensors are used in pairs, the bearing seat is installed on the tension sensor, the tension roller shafts at the two ends of the tension roller are connected to the bearing inner holes of the bearing seat, and the tension sensors at the two ends can detect the tension value of the diaphragm between the extraction tanks when the diaphragm passes through the tension roller. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective view of a tension detection structure for sealing an extraction tank according to an embodiment of the application;

[0018] Figure 2 FIG. 2 is a front view of a tension detection structure for sealing an extraction tank according to an embodiment of the application;

[0019] Figure 3 FIG. 3 is a side view of a tension detection structure for sealing an extraction tank according to an embodiment of the application;

[0020] Figure 4 FIG. 4 is a partial view of a tension detection structure for sealing an extraction tank according to an embodiment of the application; Figure 1

[0021] Figure 5 FIG. 5 is another partial view of a tension detection structure for sealing an extraction tank according to an embodiment of the application; Figure 2

[0022] Figure 6 FIG. 6 is a partial view of a tension detection structure for sealing an extraction tank according to an embodiment of the application;​​Figure 3 ;

[0023] Figure 7 It is a schematic diagram of the principle of the tension detection structure in the embodiment of the application.

[0024] Reference signs: 10, tension detection structure; 11, bearing seat; 12, tension roller; 121, tension roller shaft; 13, tension sensor; 14, driving motor; 15, shaft coupling; 16, sensor fixing seat; 17, connecting seat; 18, sealing element. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application.

[0026] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the application, and only the components related to the application are shown in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component when actually implemented can be arbitrarily changed, and the layout pattern of the components can also be more complex.

[0027] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not define the limiting conditions for the implementation of the application, so they do not have technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the application, should still fall within the scope covered by the disclosed technical content of the application.

[0028] The embodiment of the application provides a tension detection structure used in a sealed extraction tank, mainly solving the problem that the tension of the diaphragm between each extraction tank in the extraction system cannot be detected in the production process of the wet lithium battery diaphragm.

[0029] The embodiment of the application provides a tension detection structure used in a sealed extraction tank, which is described in detail below. Please refer to Figures 1-6 The tension detection structure 10 is installed on the wall plate of the extraction tank, and the tension detection structure 10 comprises a bearing seat 11, a tension roller 12 and a tension sensor 13. The tension sensor 13 is used in pairs, the bearing seat 11 is installed on the tension sensor 13, the tension roller shaft 121 at both ends of the tension roller 12 is connected in the bearing inner hole of the bearing seat 11, and the bearing seat 11 supports the tension roller 12. Among them, when the diaphragm passes through the tension roller 12, the tension sensor 13 at both ends can detect the diaphragm tension value between the extraction tanks.

[0030] In the present embodiment, the tension detection structure 10 is installed on the wall plate in the extraction tank, and mainly comprises a bearing seat 11, a tension roller 12 and a tension sensor 13 (pillow type or flange type). The tension roller 12 is installed on the tension sensor 13 through the bearing seat 11. The tension sensor 13 needs to bear the load generated by the material tension and the weight load of the tension roller 12 itself. Therefore, when selecting the range of the tension sensor, the combined load of the two should be considered. In the present embodiment, the tension sensor 13 at both ends can detect the tension value of the diaphragm between the extraction tanks when the diaphragm passes through the tension roller 12. Thus, the problem that the tension of the diaphragm between the extraction tanks in the wet lithium battery diaphragm production process cannot be detected can be solved.

[0031] In some embodiments, the tension roller shaft 121 at the left and right ends of the tension roller 12 is respectively installed in the bearing inner hole of the bearing seat 11 of the two tension sensors 13. The two tension sensors 13 jointly support the tension roller 12. The two tension sensors 13 are jointly connected with a display instrument through a cable. The display instrument provides power supply for the two sensors and analyzes and processes the pressure signal returned by the sensors and displays on the screen.

[0032] In some embodiments, the tension roller 12 is set as a driven tension roller. It can rotate under the action of external power to provide auxiliary power required for producing diaphragm and detect the tension of the diaphragm. Compared with the passive tension roller 12 in the prior art, the tension roller 12 in the present embodiment is active. It can provide auxiliary power required for producing diaphragm and detect the tension of the diaphragm.

[0033] Please refer to Figure 1 and Figure 4 , in an implementable manner, the tension detection structure 10 further comprises a driving motor 14. The output shaft of the driving motor 14 is connected with the tension roller shaft 121 at one end of the tension roller 12, for driving the tension roller 12 to rotate in the bearing inner hole of the bearing seat 11. Therefore, through the power provided by the driving motor 14, the tension roller 12 can be driven to rotate, thereby providing auxiliary power required for producing diaphragm. Preferably, the output shaft of the driving motor 14 is connected with the tension roller shaft 121 at the end of the tension roller 12 through a coupling 15. The coupling 15 can be a spherical cage type universal coupling.

[0034] Please refer to Figure 1 , Figure 4 and Figure 6 , in some embodiments, the bottom of the tension sensor 13 has a bottom mounting hole on each of the left and right sides. The tension sensor 13 is fixed on a sensor fixing seat 16 through bolts in the bottom mounting hole. The sensor fixing seat 16 is integrally set as an L type.

[0035] In some embodiments, the sensor fixing seat 16 is connected to the wall plate of the extraction tank through the connecting seat 17, the connecting seat 17 comprises a side connecting seat 171 and a bottom connecting seat 172 connected with the side connecting seat 171, the bottom of the sensor fixing seat 16 is bolted to the bottom connecting seat 172, the side of the sensor fixing seat 16 is bolted to the side connecting seat 171, the side connecting seat 171 is provided with a clearance hole for the bearing seat 11 to extend and install, that is, the side connecting seat 171 is arranged outside the bearing seat 11, a circle of bolt mounting holes are arranged on the side connecting seat 171, and the side connecting seat 171 and the wall plate of the extraction tank are connected through bolts. Thus, the whole tension detection structure 10 can be fixed to the wall plates on both sides of the extraction tank through the arrangement of the connecting seat 17.

[0036] In some embodiments, as shown in Figures 4-6 The side connecting seat 171 and the bearing seat 11 are not in direct contact, and a sealing element 18 is arranged therebetween, so that the sealing between the bearing seat 11 and the side connecting seat 171 is realized, and the sealing condition is met. Preferably, the sealing element 18 is arranged as a sealing ring, and is a fluorine rubber sealing ring.

[0037] The implementation principle of the embodiment is as follows: as shown in Figure 7 The tension detection structure in the embodiment can detect the tension of the membrane between the stages in the extraction tank when the tension detection structure is installed in each stage of the extraction tank. Specifically, the lithium battery membrane C passes through the driving roller A1 and the driving roller A2 in the extraction tank A and the tension roller B1 and the driving roller B2 in the extraction tank B. When the membrane C passes through the tension roller B1, the membrane C is in a tension state during the winding process, and a tension is generated on the tension roller B1. The tension is transmitted to the bearing seat 11 and the tension sensor 13 below the bearing seat 11 through the tension roller B1, and then the tension value of the membrane between the extraction tanks A and B is detected through the tension sensors 13 at both ends. The driving roller A1 and the driving roller B2 are located below the extraction liquid level, the driving roller A2 and the tension roller B1 are located above the extraction liquid level, the lithium battery membrane enters from one end of the extraction tank and leaves from the other end, and the lithium battery membrane is wound on the surface of the driving roller and the tension roller in the extraction tank.

[0038] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0039] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A tension detection structure for use in a sealed extraction tank, characterized in that, The tension detection structure is installed on the wall panel inside the extraction tank; The tension detection structure (10) includes a bearing housing (11), a tension roller (12), and a tension sensor (13); The bearing housing (11) is mounted on the tension sensor (13), and the tension roller shafts (121) at both ends of the tension roller (12) are respectively connected to the bearing inner hole of the bearing housing (11); Among them, when the diaphragm passes through the tension roller (12), the tension sensors (13) at both ends detect the tension value of the diaphragm between the extraction tanks.

2. The tension detection structure according to claim 1, characterized in that, The tension roller (12) is configured as an active tension roller, which can rotate under the action of external power to provide the auxiliary power required for diaphragm production and to detect diaphragm tension.

3. The tension detection structure according to claim 2, characterized in that, The tension detection structure also includes a drive motor (14), the output shaft of which is connected to the tension roller shaft (121) at one end of the tension roller (12) for driving the tension roller (12) to rotate within the bearing bore.

4. The tension detection structure according to claim 3, characterized in that, The output shaft of the drive motor (14) is connected to the tension roller shaft (121) of the tension roller (12) via a coupling (15).

5. The tension detection structure according to claim 1, characterized in that, The tension sensor (13) has a bottom mounting hole on each of its left and right sides for fixing the tension sensor (13) onto the sensor mounting base (16).

6. The tension detection structure according to claim 5, characterized in that, The sensor mounting base (16) is mounted on the wall plate of the extraction tank via a connecting base (17); The connecting seat (17) and the wall panel of the extraction tank are detachably connected.

7. The tension detection structure according to claim 6, characterized in that, The connecting seat (17) includes a side connecting seat (171) and a bottom connecting seat (172) connected to the side connecting seat (171); The sensor mounting base (16) is L-shaped in general. The bottom of the sensor mounting base (16) is detachably connected to the bottom connecting base (172), and the side of the sensor mounting base (16) is connected to the side connecting base (171). The side connector (171) is bolted to the wall panel of the extraction tank.

8. The tension detection structure according to claim 7, characterized in that, The side connecting seat (171) is disposed on the outside of the bearing seat (11), and a seal (18) is provided between the side connecting seat (171) and the bearing seat (11).

9. The tension detection structure according to claim 8, characterized in that, The sealing element (18) is configured as a sealing ring.

10. The tension detection structure according to claim 9, characterized in that, The sealing ring is a fluororubber sealing ring.

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