Roller passing device and coating machine

Abstract

The utility model belongs to the technical field of pole piece coating, and particularly relates to a roller passing device and a coating machine, and the roller passing device comprises a winding mechanism, a roller passing mechanism and a roller passing mechanism, the traction roller is arranged at the downstream of the drying oven and the upstream of the winding mechanism, and the traction roller is used for pulling the pole piece to move; the speed adjusting mechanism comprises a rotating speed sensor and a rotating speed adjusting module, the rotating speed sensor is installed on the traction roller, and the rotating speed adjusting module is connected with the traction roller; the rotating speed sensor is used for detecting and identifying the rotating speed of the traction roller and feeding back the rotating speed to the rotating speed adjusting module; the rotating speed adjusting module is used for adjusting the rotating speed of the traction roller; the device has the beneficial effects that the rotating speed adjusting module is used for driving the traction roller to actively rotate and adjusting the rotating speed of the traction roller, so that the traction roller is not driven to rotate by the movement of the pole piece, the wrinkling risk of the pole piece and the pole lug can be reduced, and the phenomenon of warping of the pole lug can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of pole piece coating, and particularly relates to a roller passing device and a coating machine. Background Technique

[0002] At present, in the production process of negative pole piece coating, due to the oven temperature problem, the foil absorbs a large amount of heat. When the pole piece that quickly releases heat passes through the roller after leaving the oven, when the non-levelness and the rotation of the roller act on the pole piece at the same time, abnormalities such as the inner shrinkage of the middle pole ear, the folding of the film surface, and the folding of the pole ear will occur.

[0003] In the prior art, in order to solve the problem of pole ear wrinkling when the pole piece passes through the roller, usually the roller after the weighing instrument in the coating operation is bound so that it cannot rotate, thereby preventing the pole ear from further shrinking inward after the pole piece passes through the roller. Although such measures can effectively reduce the pole ear wrinkling situation, since the roller is fixed and does not rotate, the pole ear is easily scratched and stressed when the pole piece passes through the roller, resulting in the warping of the pole ear. Content of the Utility Model

[0004] The purpose of the utility model is to provide a roller passing device and a coating machine for solving the above problems aiming at the existing technical problems.

[0005] In view of this, the utility model provides a roller passing device, including:

[0006] A winding mechanism for winding the pole piece after passing through the oven;

[0007] A traction roller is arranged downstream of the oven and upstream of the winding mechanism, and the traction roller is used to traction the movement of the pole piece;

[0008] A rotational speed regulating mechanism, which includes a rotational speed sensor and a rotational speed regulating module. The rotational speed sensor is installed on the traction roller, and the rotational speed regulating module is connected to the traction roller;

[0009] Wherein, the rotational speed sensor is used to detect and identify the rotational speed of the traction roller and feedback it to the rotational speed regulating module, and the rotational speed regulating module is used to adjust the rotational speed of the traction roller.

[0010] Further, the rotational speed regulating module adjusts the rotational speed of the traction roller to v 2 , v 2 satisfies the relational expression: 0.2v 1 -5 ≤ v 2 ≤ 0.2v 1 +5, where v 1 is the movement speed of the pole piece.

[0011] Further, the rotational speed regulating module includes:

[0012] The driving module is connected to the traction roller and is used to control the rotation of the traction roller.

[0013] The control module is electrically connected to the rotational speed sensor and the driving module, and is used to control and adjust the operating power of the driving module.

[0014] Furthermore, the rotational speed adjustment module further includes:

[0015] The speed regulation module, and the control module is electrically connected to the driving module through the speed regulation module.

[0016] Furthermore, the driving module is a driving motor.

[0017] Furthermore, the control module is an electric cabinet box.

[0018] Furthermore, it further includes:

[0019] A plurality of guide roller mechanisms are respectively arranged upstream and downstream of the traction roller.

[0020] Furthermore, it further includes:

[0021] The flattening roller mechanism is arranged downstream of the oven.

[0022] Furthermore, it further includes:

[0023] The weighing instrument is arranged downstream of the flattening roller mechanism.

[0024] A coating machine includes the over-roller device of any one of the above.

[0025] The beneficial effect of the present utility model is:

[0026] The rotational speed adjustment module is used to drive the traction roller to rotate actively. The rotational speed sensor can detect the rotational speed of the traction roller and feedback it to the rotational speed adjustment module. When the rotational speed of the traction roller is inconsistent with that of the pole piece, the rotational speed adjustment module controls and adjusts the rotational speed of the traction roller to be consistent with the moving speed of the pole piece, so that the traction roller is not driven by the movement of the pole piece to rotate, which not only reduces the risk of wrinkling of the pole ear of the pole piece, but also prevents the phenomenon of pole ear warping. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the present utility model;

[0028] Figure 2 is the partial structural schematic diagram of the present utility model;

[0029] The marks in the figure are shown as:

[0030] 1. Rewinding mechanism; 2. Traction roller; 3. Rotation speed adjustment mechanism; 31. Rotation speed sensor; 32. Drive module; 33. Control module; 34. Speed regulation module; 4. Guide roller mechanism; 5. Flattening roller mechanism; 6. Weighing instrument; 7. Oven. Detailed implementation mode

[0031] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work belong to the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation modes, and are not intended to limit the exemplary implementation modes according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0033] Embodiment 1:

[0034] This embodiment provides a roller passing device, including:

[0035] A rewinding mechanism 1, and the rewinding mechanism 1 is used to rewind the pole piece after passing through the oven 7;

[0036] A traction roller 2, which is arranged downstream of the oven 7 and upstream of the rewinding mechanism 1, and the traction roller 2 is used to traction the movement of the pole piece;

[0037] A rotation speed adjustment mechanism 3, the rotation speed adjustment mechanism 3 includes a rotation speed sensor 31 and a rotation speed adjustment module, the rotation speed sensor 31 is installed on the traction roller 2, and the rotation speed adjustment module is connected to the traction roller 2;

[0038] Among them, the rotation speed sensor 31 is used to detect and identify the rotation speed of the traction roller 2 and feedback it to the rotation speed adjustment module, and the rotation speed adjustment module is used to control the rotation speed of the traction roller 2 to be consistent with the movement speed of the pole piece.

[0039] Further, the rotation speed adjustment module adjusts the rotation speed of the traction roller 2 to v 2 , v2 Satisfies the relation: 0.2v 1 -5 ≤ v 2 ≤ 0.2v 1 +5, where v 1 is the moving speed of the pole piece.

[0040] In this technical solution, as Figure 1 , 2 shown, after the pole piece is coated, it enters the oven 7 for drying. After drying, it is discharged from the oven 7 and wound by the winding mechanism 1. The traction roller 2 is arranged upstream of the winding mechanism 1 to play a role in pulling the pole piece discharged from the oven 7 and controlling the moving route of the pole piece. The rotation speed adjustment module controls the rotation speed of the traction roller 2. A rotation speed sensor 31 is arranged on the roller shaft of the traction roller 2. The rotation speed sensor 31 effectively detects and identifies the rotation speed of the traction roller 2, and then transmits the detected rotation speed to the rotation speed adjustment module. According to the moving speed of the pole piece, the rotation speed of the traction roller 2 can be first controlled to reach the optimal value through manual operation of the electric cabinet. The optimal value is v 2 , v 2 Satisfies the relation: 0.2v 1 -5 ≤ v 2 ≤ 0.2v 1 +5, where v 1 is the moving speed of the pole piece. The rotation speed adjustment module compares the received rotation speed value of the traction roller 2 with the above optimal value range. If the operation is abnormal and the rotation speed of the traction roller 2 exceeds the above range, the rotation speed adjustment module will adjust the rotation speed of the traction roller 2 to restore it to the above range. When the rotation speed of the traction roller 2 remains within the above range, the relative friction generated between the pole piece and the traction roller 2 can be reduced, thereby preventing abnormal situations such as the pole ear shrinking inward and the film surface folding when the coated pole piece passes through the traction roller 2, and also avoiding the traction roller 2 from scratching the pole ear of the pole piece and causing the pole ear to warp.

[0041] It is worth mentioning that the number of the traction rollers 2 can be multiple, which is set according to the actual moving path of the pole piece, and the rotation speed adjustment module can control and adjust the rotation speed of each traction roller 2.

[0042] To sum up, the rotation speed adjustment module is used to drive the traction roller 2 to rotate actively. The rotation speed sensor 31 can detect the rotation speed of the traction roller 2 and feedback it to the rotation speed adjustment module. The rotation speed adjustment module adjusts the rotation speed of the traction roller 2 to v 2 , v 2 Satisfies the relation: 0.2v 1 -5 ≤ v 2 ≤ 0.2v 1 +5, where v 1is the moving speed of the electrode sheet. When the rotation speed of the traction roller 2 exceeds the above range, the rotation speed adjustment module controls and adjusts the rotation speed of the traction roller 2 to resume within the above range, so that the traction roller 2 is not driven to rotate by the movement of the electrode sheet, which not only reduces the risk of wrinkling of the electrode tab of the electrode sheet, but also prevents the occurrence of the phenomenon of warping of the electrode tab.

[0043] It should be noted that the moving speed of the electrode sheet is v 1 , in actual production, according to different electrode sheet models and different coating processes, v 1 is generally in the range of 35 m / min - 65 m / min.

[0044] Embodiment 2:

[0045] This embodiment provides a roller passing device, which, in addition to including the technical solutions of the above embodiment, further has the following technical features.

[0046] Further, the rotation speed adjustment module includes:

[0047] A driving module 32, the driving module 32 is connected to the traction roller 2 and is used to control the rotation of the traction roller 2;

[0048] A control module 33, the control module 33 is electrically connected to the rotation speed sensor 31 and the driving module 32, and is used to control and adjust the operating power of the driving module 32.

[0049] Further, the rotation speed adjustment module further includes:

[0050] A speed adjustment module 34, the control module 33 is electrically connected to the driving module 32 through the speed adjustment module 34.

[0051] Further, the driving module 32 is a driving motor.

[0052] Further, the control module 33 is an electric cabinet box.

[0053] In this technical solution, after the rotation speed sensor 31 detects and identifies the rotation speed of the traction roller 2, it transmits the rotation speed value to the electric cabinet box. When the detected rotation speed value of the traction roller 2 is not within the preset rotation speed range value, the electric cabinet box controls the operation of the speed adjustment module 34, and the speed adjustment module 34 adjusts the operating power of the driving module 32, so that the rotation speed of the traction roller 2 is adjusted to a reasonable range value, thereby improving the situation of wrinkling of the electrode tab.

[0054] Embodiment 3:

[0055] This embodiment provides a roller passing device, which, in addition to including the technical solutions of the above embodiment, further has the following technical features.

[0056] Further, it further includes:

[0057] A plurality of guiding roller mechanisms 4 are respectively arranged upstream and downstream of the traction roller 2.

[0058] In this technical solution, guiding roller mechanisms 4 are arranged both upstream and downstream of the traction roller 2. The upstream guiding roller mechanism 4 guides the pole piece to move to the traction roller 2, and the downstream guiding roller mechanism 4 guides the pole piece to discharge from the traction roller 2. Through this structural design, it can ensure that the pole piece moves stably along a predetermined path without deviation, improve the pole piece conveying efficiency and production efficiency, and to a certain extent, it can also reduce the friction suffered by the pole piece and avoid damage to the pole piece.

[0059] Embodiment 4:

[0060] This embodiment provides a roller passing device, which, in addition to including the technical solution of the above embodiment, also has the following technical features.

[0061] Furthermore, it further includes:

[0062] A flattening roller mechanism 5 is arranged downstream of the oven 7.

[0063] In this technical solution, after the pole piece discharges from the oven 7, it is flattened and supported by the flattening roller mechanism 5, which can prevent the pole piece from wrinkling due to the too high discharge temperature of the oven 7. Moreover, through appropriate pressure and rolling action, the flattening roller mechanism 5 can effectively flatten the surface of the pole piece, remove the unevenness and air bubbles on the surface, so that the surface of the pole piece is smoother.

[0064] The flattening roller mechanism 5 can also help to flatten the coating slurry layer on the surface of the pole piece, make its distribution uniform, and contribute to eliminating the possible uneven thickness or local agglomeration of the coating liquid during the coating process, ensuring the uniformity of the coating layer on the entire surface of the pole piece.

[0065] Embodiment 5:

[0066] This embodiment provides a roller passing device, which, in addition to including the technical solution of the above embodiment, also has the following technical features.

[0067] Furthermore, it further includes:

[0068] A weighing instrument 6 is arranged downstream of the flattening roller mechanism 5.

[0069] In this technical solution, after the pole piece discharges from the oven 7, it reaches the weighing instrument 6. The weighing instrument 6 can measure and monitor the thickness of the coating on the surface of the pole piece to ensure that the coating thickness of the pole piece is within a predetermined range. In addition, the weighing instrument 6 can also detect the uniform distribution of the coating slurry on the surface of the pole piece. By continuously monitoring the uniformity during the coating process, the staff can adjust the equipment or coating process in time to avoid the occurrence of uneven coating.

[0070] Example 6:

[0071] This embodiment provides a coating machine, including a roll passing device described in any one of the above embodiments 1-5.

[0072] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A roller device, characterized in that: include: A winding mechanism (1), the winding mechanism (1) being used to wind up the pole piece after passing through the oven (7); A traction roller (2), the traction roller (2) being arranged downstream of the oven (7) and upstream of the winding mechanism (1), the traction roller (2) being used for traction of the pole piece; A speed regulating mechanism (3), the speed regulating mechanism (3) comprising a speed sensor (31) and a speed regulating module, the speed sensor (31) being mounted on the traction roller (2), and the speed regulating module being connected to the traction roller (2); The rotation speed sensor (31) is used to detect and identify the rotation speed of the traction roller (2) and feed it back to the rotation speed regulating module, and the rotation speed regulating module is used to regulate the rotation speed of the traction roller (2).

2. The roller device according to claim 1, characterized in that: The rotation speed regulating module regulates the rotation speed of the traction roller (2) to v2, and v2 satisfies the relationship: 0.2v1-5≤v2≤0.2v1+5, wherein v1 is the movement speed of the pole piece.

3. The roller device according to claim 1, characterized in that: The speed regulating module comprises: A driving module (32), the driving module (32) being connected to the traction roller (2) and being used to control the rotation of the traction roller (2); A control module (33) is electrically connected to the rotation speed sensor (31) and the drive module (32), and is used to control and adjust the operating power of the drive module (32).

4. The roller device according to claim 3, characterized in that: The speed regulating module also includes: A speed regulating module (34), wherein the control module (33) is electrically connected to the driving module (32) via the speed regulating module (34).

5. The roller device according to claim 3, characterized in that: The driving module (32) is a driving motor.

6. The roller device according to claim 3, characterized in that: The control module (33) is an electrical cabinet.

7. The roller device according to claim 1, characterized in that: Also includes: A plurality of guide roller mechanisms (4), wherein the plurality of guide roller mechanisms (4) are respectively arranged upstream and downstream of the traction roller (2).

8. The roller device according to claim 1, characterized in that: Also includes: A flattening roller mechanism (5), wherein the flattening roller mechanism (5) is arranged downstream of the drying oven (7).

9. The roller device according to claim 8, characterized in that: Also includes: A weighing meter (6), wherein the weighing meter (6) is arranged downstream of the flattening roller mechanism (5).

10. A coating machine, characterized in that: The invention comprises a roller device as claimed in any one of claims 1 to 9.

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