Winding mechanism based on improvement of copper foil winding yield

Abstract

The utility model discloses a winding mechanism based on improvement of copper foil winding yield. The winding mechanism comprises two mounting racks, the position adjusting device is arranged on the mounting frame; the compression roller is rotationally connected between the two position adjusting devices; the at least one tension guide roller is rotationally connected between the two position adjusting devices; the speed sensor is arranged on a conveying line of the copper foil and is used for detecting the conveying speed of the copper foil and transmitting a signal to the central processing unit; according to the copper foil winding device, the pressing roller is arranged above the winding roller, the tension guide roller is additionally arranged on one side of the winding roller, in the process that copper foil is wound on the winding roller, through cooperation of the first motor and the two-way lead screw, the position of the pressing roller is adjusted, and the position of the tension guide roller is adjusted through cooperation of the position adjusting device and the central processing unit. The compression roller and the tension guide roller always abut against the outer side of the copper foil roll, internal stress of the copper foil can be effectively released in an auxiliary mode, tension distribution of the whole width of the copper foil is more uniform, the phenomenon that high-roughness raw foil is wound and folded is improved, and the yield of the copper foil is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil production equipment, in particular to a winding mechanism for improving the yield rate of copper foil winding. Background Art

[0002] Controlling the uniformity of electroplating has always been a key technical challenge in copper foil production, which will directly affect the performance and yield of the final product. The crystal structure of the copper foil, the surface treatment process, the roughness of the raw foil, and the treatment during the winding process are all important factors affecting the quality of electroplating.

[0003] The roughness of the raw foil is relatively high, and the mountain-shaped structure on its surface is relatively three-dimensional. The three-dimensional mountain-shaped structure is very important for the growth of copper nodules. Therefore, in order to ensure the formation of copper nodules, the raw foil needs to have a high roughness. After the raw foil is formed, it will be rolled up on the winding roller. When the roughness of the raw foil is high, the friction between the raw foil and the winding roller, and between the raw foils, is relatively large. At this time, small fluctuations in basis weight deviation, uneven tension, poor extrusion and other factors will cause the internal stress of the raw foil to be unable to be released, and then the winding and folding phenomenon will occur, which seriously affects the yield of copper foil. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a winding mechanism based on improving the yield rate of copper foil winding.

[0005] The technical solution adopted by the utility model is: a winding mechanism based on improving the yield rate of copper foil winding, comprising two support seats, a winding roller is installed between the two support seats, the winding roller is used to wind up the copper foil continuously conveyed from the upstream, and form a copper foil roll, and the extension direction of the copper foil roll is set to be the long direction, and also includes:

[0006] Two mounting brackets;

[0007] A positioning device, arranged on the mounting frame;

[0008] The pressure roller is arranged along the length direction and is transferred between the two positioning devices;

[0009] At least one tension guide roller is arranged along the length direction and connected between the two positioning devices;

[0010] A speed sensor, installed on the conveying line of the copper foil, for detecting the conveying speed of the copper foil and transmitting the signal to a central processing unit;

[0011] The positioning device is used to cooperate with the central processor to adjust the positions of the pressure roller and the tension guide roller, the pressure roller is kept in contact with the top of the copper foil roll, and the tension guide roller is kept in contact with the outside of the copper foil roll.

[0012] The following also provides several optional methods, which are not additional limitations to the above overall solution, but only further supplements or optimizations. Without technical or logical contradictions, each optional method can be combined separately with the above overall solution, or multiple optional methods can be combined with each other.

[0013] Preferably, the position adjustment device includes:

[0014] A first motor, fixed on the mounting frame;

[0015] A bidirectional lead screw, arranged vertically, and one end thereof is fixed on the motor shaft of the first motor. The bidirectional lead screw has a positive thread portion and a reverse thread portion. A first slider is installed on the positive thread portion, and a second slider is installed on the reverse thread portion. A first bearing seat is fixedly provided on the first slider, and a second bearing seat is fixedly provided on the second slider. The tension guide roller is installed between the two first bearing seats, and the pressure roller is installed between the two second bearing seats.

[0016] Preferably, a coupling and a third bearing seat are fixed on the mounting frame. Among them, the coupling is installed between the motor shaft of the first motor and the bidirectional lead screw, and the third bearing seat is arranged at one end of the bidirectional lead screw away from the first motor.

[0017] Preferably, the winding roller is rotatably installed between two support seats, and a second motor is installed on the support seats. The second motor is used to drive the winding roller to rotate.

[0018] Preferably, the support seats are arranged on one side of the mounting frame.

[0019] More preferably, a second motor is installed on the mounting frame, and both ends of the winding roller are correspondingly arranged at the middle position of the bidirectional lead screw. The second motor is used to drive the winding roller to rotate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] By arranging a pressure roller above the winding roller, adding a tension guide roller on one side of the winding roller, and during the process of winding the copper foil on the winding roller, through the cooperation of the first motor and the bidirectional lead screw, the pressure roller and the tension guide roller are always kept in contact with the outside of the copper foil roll, which can effectively assist in releasing the internal stress of the copper foil and make the tension distribution of the entire width of the copper foil more uniform, thereby improving the phenomenon of folding during the winding of the high-roughness raw foil, and thus improving the copper foil yield to a certain extent. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 The overall plan view when the inner diameter of the copper foil roll is relatively large in an embodiment of the present application;

[0024] Figure 2 The overall plan view when the inner diameter of the copper foil roll is relatively small in an embodiment of the present application;

[0025] Figure 3 The side view of the winding roller, the pressing roller and the tension guide roller in an embodiment of the present application;

[0026] Figure 4 The assembled structure diagram of the support seat and the winding roller in an embodiment of the present application.

[0027] The labels in the drawings are: 1 - winding roller, 2 - tension guide roller, 3 - pressing roller, 4 - copper foil roll, 5 - mounting bracket, 6 - first motor, 7 - bidirectional lead screw, 71 - positive thread part, 72 - reverse thread part, 8 - first slider, 81 - first bearing seat, 9 - second slider, 91 - second bearing seat, 10 - support seat, 11 - coupling, 12 - third bearing seat, 13 - second motor.

[0028] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the drawings. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Specific implementation plan: see Figures 1-4 The utility model is a winding mechanism based on improving the yield rate of copper foil winding, comprising two support seats 10, a winding roller 1 is installed between the two support seats 10, the winding roller 1 is used to wind up the copper foil continuously conveyed from the upstream, and form a copper foil roll 4, the extension direction of the copper foil roll 4 is set as the longitudinal direction, and also includes:

[0033] Two mounting brackets 5;

[0034] A positioning device, arranged on the mounting frame 5;

[0035] The pressing roller 3 is arranged along the length direction and is connected between the two positioning devices;

[0036] At least one tension guide roller 2, arranged along the length direction and connected between the two positioning devices;

[0037] A speed sensor is installed on the conveying line of the copper foil to detect the conveying speed of the copper foil and transmit the signal to the central processor;

[0038] The positioning device is used to cooperate with the central processor to adjust the positions of the pressure roller 3 and the tension guide roller 2, so that the pressure roller 3 is kept in contact with the top of the copper foil roll 4, and the tension guide roller 2 is kept in contact with the outside of the copper foil roll 4.

[0039] As a preferred implementation of this embodiment, please refer to Figure 1 and Figure 2 In this embodiment, the positioning device includes:

[0040] A first motor 6 is fixed on the mounting frame 5;

[0041] The bidirectional screw rod 7 is arranged vertically and one end is fixed on the motor rod of the first motor 6. The bidirectional screw rod 7 has a positive thread portion 71 and a negative thread portion 72. The positive thread portion 71 is equipped with a first slider 8, and the negative thread portion 72 is equipped with a second slider 9. The first slider 8 is fixed with a first bearing seat 81, and the second slider 9 is fixed with a second bearing seat 91. The tension guide roller 2 is installed between the two first bearing seats 81, and the pressure roller 3 is installed between the two second bearing seats 91.

[0042] Working principle of the position adjustment device: The first motor 6 is electrically connected to the central processor. The central processor can calculate the increasing speed of the inner diameter of the copper foil roll 4 per unit time according to the copper foil conveying speed provided by the speed sensor and in combination with the pre-input copper foil thickness parameter, and control the rotation speed of the first motor 6 according to the increasing speed of the inner diameter of the copper foil roll 4.

[0043] Note that the linear speed of the coiling roller 1 for coiling the copper foil needs to be the same as the copper foil production speed of the copper foil production device, so as to achieve a high degree of synchronization in automated production. Therefore, it is necessary to detect the copper foil conveying speed (linear speed), and then calculate the increasing speed of the inner diameter of the copper foil roll 4 per unit time.

[0044] In addition, as the inner diameter of the copper foil roll 4 increases, the increasing speed of the inner diameter will gradually slow down. Therefore, the working rotation speed of the first motor 6 needs to be gradually reduced. When the first motor 6 works, it will drive the bidirectional lead screw 7 to rotate, so that the positive thread part 71 and the reverse thread part rotate in opposite directions. At this time, the first slider 8 moves downward, and the second slider 9 moves upward, thereby driving the tension guide roller 2 to move downward and the pressure roller 3 to move upward. During this process, since the downward movement distance of the tension guide roller 2 is synchronized with the downward movement distance of the pressure roller 3, during the process of the inner diameter of the copper foil roll 4 becoming larger, it can be ensured that the tension guide roller 2 always remains in contact with the lower part of the copper foil roll 4, and the guide roller always remains in contact with the upper part of the copper foil roll 4. Thus, during the copper foil coiling process, it can effectively assist in releasing the internal stress of the copper foil and make the tension distribution of the entire width of the copper foil more uniform.

[0045] It should be noted that the pressure roller 3 needs to be kept above the copper foil roll 4. However, in other embodiments, the position of the tension guide roller 2 can be changed, as long as it is ensured that it always remains in contact with the copper foil roll 4.

[0046] Please refer to Figure 1 , it can be seen that in this embodiment, a coupling 11 and a third bearing seat 12 are fixed on the mounting frame 5. Among them, the coupling 11 is installed between the motor rod of the first motor 6 and the bidirectional lead screw 7, and the third bearing seat 12 is arranged at one end of the bidirectional lead screw 7 away from the first motor 6.

[0047] Here, the setting of the coupling 11 and the third bearing seat 12 can make the rotation of the bidirectional lead screw 7 more stable.

[0048] Please refer to Figure 4 , it can be seen that in an embodiment, the coiling roller 1 is rotatably installed between two support seats 10, and a second motor 13 is installed on the support seats 10 for driving the coiling roller 1 to rotate.

[0049] In addition, the support seats 10 are arranged on one side of the mounting frame 5.

[0050] It should be noted that, referring to the above, since it is necessary to ensure that the winding linear speed of the winding roller 1 for winding the copper foil is the same as the copper foil production speed of the copper foil production device, as the inner diameter of the copper foil roll 4 increases, the operating speed of the second motor 13 needs to be gradually reduced. This is the prior art and will not be elaborated here.

[0051] In addition, to make the overall structure more compact, in another embodiment, the second motor 13 is installed on the mounting frame 5, and both ends of the winding roller 1 are correspondingly arranged at the middle position of the bidirectional lead screw 7. The second motor 13 is used to drive the winding roller 1 to rotate.

[0052] Here, by correspondingly arranging both ends of the winding roller 1 at the middle position of the bidirectional lead screw 7, it can be ensured that the first slider 8 and the second slider 9 will not touch the shaft rods at both ends of the winding roller 1 during the translation process. In addition, to ensure the stable installation and rotation of the winding roller 1, in this embodiment, the mounting frame 5 is provided with a bearing seat for the above-mentioned shaft rod to pass through.

[0053] The winding mechanism based on improving the qualified rate of copper foil winding of the present invention The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A winding mechanism for improving the yield rate of copper foil winding, comprising two support seats, a winding roller is installed between the two support seats, the winding roller is used to wind up the copper foil continuously conveyed from the upstream and form a copper foil roll, and the extension direction of the copper foil roll is set to be the longitudinal direction, characterized in that: Also includes: Two mounting brackets; A positioning device, arranged on the mounting frame; The pressure roller is arranged along the length direction and is transferred between the two positioning devices; At least one tension guide roller is arranged along the length direction and connected between the two positioning devices; A speed sensor, installed on the conveying line of the copper foil, for detecting the conveying speed of the copper foil and transmitting the signal to a central processing unit; The positioning device is used to cooperate with the central processor to adjust the positions of the pressure roller and the tension guide roller, the pressure roller is kept in contact with the top of the copper foil roll, and the tension guide roller is kept in contact with the outside of the copper foil roll.

2. A winding mechanism for improving the yield rate of copper foil winding according to claim 1, characterized in that: The position adjustment device comprises: a first motor fixed on a mounting frame; A bidirectional screw rod is arranged vertically and one end is fixed on the motor rod of the first motor. The bidirectional screw rod has a positive thread portion and a negative thread portion. A first slider is installed on the positive thread portion, and a second slider is installed on the negative thread portion. A first bearing seat is fixed on the first slider, and a second bearing seat is fixed on the second slider. The tension guide roller is installed between the two first bearing seats, and the pressure roller is installed between the two second bearing seats.

3. A winding mechanism for improving the copper foil winding yield rate according to claim 2, characterized in that: A coupling and a third bearing seat are fixed on the mounting frame, wherein the coupling is installed between the motor rod of the first motor and the bidirectional screw rod, and the third bearing seat is arranged at an end of the bidirectional screw rod away from the first motor.

4. A winding mechanism for improving the copper foil winding yield rate according to any one of claims 1 to 3, characterized in that: The winding roller is rotatably mounted between two support seats, and a second motor is mounted on the support seat. The second motor is used to drive the winding roller to rotate.

5. A winding mechanism for improving the copper foil winding yield rate according to claim 4, characterized in that: The support seat is arranged on one side of the mounting frame.

6. A winding mechanism for improving copper foil winding yield according to claim 3, characterized in that: A second motor is installed on the mounting frame, and the two ends of the winding roller are arranged correspondingly at the middle position of the bidirectional screw rod, and the second motor is used to drive the winding roller to rotate.

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