A device for continuously producing ultra-long meters of lithium battery copper foil to prevent foil breakage

Abstract

The present invention discloses a continuous production device for ultra-long meters of lithium battery copper foil with anti-breakage foil, belonging to the field of copper foil production technology. The device comprises a conveying platform, a copper foil conveying assembly installed on the conveying platform for conveying the copper foil, a tension detection device located on one side of the copper foil for detecting the tension of the copper foil, a longitudinal tension control assembly installed on the lower side of the copper foil, and a longitudinal tension control assembly comprising a first telescopic device, a fourth bracket, a slide, and a floating roller. One end of the first telescopic device is hinged to a support on the conveying platform, and the two ends of the fourth bracket are respectively connected to two slides. A floating roller is arranged to rotate simultaneously between the two slides. The displacement direction of the floating roller is parallel to the longitudinal direction of the copper foil. The copper foil is sequentially transmitted by a first transmission roller, a second transmission roller, a floating roller, and a third transmission roller before being output. The device of the present invention can timely and stably control the tension of the copper foil to ensure the quality and performance of the copper foil.

Description

Technical Field

[0001] The invention belongs to the technical field of copper foil production, and in particular relates to an ultra-long meter-long continuous production device for lithium battery copper foil that is anti-foil breakage. Background Art

[0002] Unstable copper foil tension during production can affect the foil's surface quality, thickness uniformity, and subsequent processing performance. Unstable tension can cause defects such as tearing, dents, and scratches, and in severe cases, can even affect the foil's yield and performance. While some existing equipment exists for measuring copper foil tension, timely and stable control of the tension to ensure quality and performance remains a pressing technical challenge. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a continuous production equipment for ultra-long meters of lithium battery copper foil that can prevent foil breakage, which can solve the above technical problems.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention discloses an ultra-long continuous production device for lithium battery copper foil with anti-foil breakage, comprising a conveying platform, a copper foil conveying assembly mounted on the conveying platform for conveying the copper foil, and a tension detection device located on one side of the copper foil for detecting the tension of the copper foil. The tension detection device can detect the longitudinal, transverse and normal tension of the copper foil respectively. A longitudinal tension control assembly, a transverse tension control assembly and a normal tension control assembly for the copper foil are mounted on the conveying platform; the copper foil conveying assembly comprises a first bracket mounted on the upper side of the conveying platform, a second bracket and a third bracket mounted on the side of the conveying platform, the first bracket, the second bracket and the third bracket being arranged on the upper side of the conveying platform. The first transmission roller, the second transmission roller and the third transmission roller are respectively installed on the bracket and the third bracket. The longitudinal tension control component is installed on the lower side of the copper foil. The longitudinal tension control component includes a first telescopic device, a fourth bracket, a slide, and a floating roller. One end of the first telescopic device is hinged on the support on the conveying platform, and the output end of the first telescopic device is connected to the fourth bracket. The two ends of the fourth bracket are respectively connected to two slides. A floating roller is matched between the two slides for simultaneous rotation. The displacement direction of the floating roller is parallel to the longitudinal direction of the copper foil. The copper foil is output after being transmitted by the first transmission roller, the second transmission roller, the floating roller and the third transmission roller in sequence.

[0006] Furthermore, the lateral tension control device includes a second telescopic device, a movable base, a support rod, a vertical cylinder, a first pressure plate, a second pressure plate and an elastic pressure assembly. One end of the second telescopic device is hinged to the conveying platform, and the output end of the second telescopic device is connected to the movable base. The movable base is connected to the vertical cylinder above through a support rod. The upper limit of the vertical cylinder is equipped with a first pressure plate, and the second pressure plate is slidably installed on the vertical cylinder. An elastic pressure assembly for elastically pressing the second pressure plate to the first pressure plate is installed in the vertical cylinder. The copper foil is clamped between the first pressure plate and the second pressure plate.

[0007] Furthermore, the elastic clamping assembly includes a core rod, a first end plate, a first slide rod, a spring, a second end plate, and a second slide rod. A vertical slide groove is provided on the surface of the vertical cylinder. The core rod is coaxially installed in the center of the vertical cylinder. The first end plate and the second end plate are separated by a sliding sleeve on the core rod. The first slide rod and the second slide rod are respectively fixed on the first end plate and the second end plate. The first slide rod and the second slide rod are slidably arranged in the slide groove. The second slide rod is pressed against the second compression plate after extending out of the slide groove.

[0008] Furthermore, the lower end of the core rod is threadedly connected to a threaded sleeve, and the upper end of the threaded sleeve abuts against the first end plate.

[0009] Furthermore, the normal tension control assembly includes a conveyor belt, a fourth transmission roller for tensioning the transmission belt, and a fifth bracket for supporting the fourth transmission roller. The lower surface of the transmission belt is pressed against the upper surface of the copper foil.

[0010] Furthermore, the fifth bracket is connected to the output end of the third telescopic device, and the third telescopic device is installed on the conveying platform.

[0011] Furthermore, the slide is slidably connected to a guide rod, the guide rod is parallel to the surface of the copper foil, and the guide rod is fixedly mounted on the conveying platform through a guide seat.

[0012] Furthermore, a blocking rod is fixedly connected to the outer end of the slide, a trigger rod is installed on the side of the blocking rod, the lower end of the trigger rod is connected to an angle sensor, and the angle sensor is connected to an alarm through a controller.

[0013] The beneficial effects of the present invention are:

[0014] The present invention discloses an ultra-long continuous production device for lithium battery copper foil with anti-foil breakage. By arranging a tension detection device, the longitudinal, transverse and normal tension of the copper foil can be detected respectively. The longitudinal tension control component, the transverse tension control component and the normal tension control component can control the longitudinal, transverse and normal tension of the copper foil respectively, so that the tension of the copper foil is more stable during the transportation process, thereby ensuring the quality of the copper foil and the subsequent processing performance requirements.

[0015] In the production equipment of the present invention, a second transmission roller and a third transmission roller are arranged parallel to each other. Since the floating roller is located between the second transmission roller and the third transmission roller, the copper foil is transmitted through the second transmission roller in sequence, and then connected to the third transmission roller after being tensioned by the floating roller. The floating roller plays a tensioning role at this time. Therefore, when the first telescopic device outputs linear displacement, under the action of the tension of each transmission roller and the conveying structure itself, the floating roller can drive the copper foil to extend or retract, thereby controlling and adjusting the longitudinal tension of the copper foil, and the control and adjustment are more convenient.

[0016] In the device disclosed by the present invention, since the displacement direction of the floating roller is parallel to the longitudinal direction of the copper foil, the stability of the tension control can be improved.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0019] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0020] Figure 2 It is a front view of the device of the present invention;

[0021] Figure 3 It is a structural diagram of the lateral tension control component;

[0022] Figure 4 This is an exploded view of the lateral tension control assembly;

[0023] Figure 5 for Figure 4 Enlarged view at point A;

[0024] Figure 6 It is a structural diagram of the longitudinal tension control component;

[0025] Figure 7Schematic diagram of the structure of the normal tension control component.

[0026] The markings in the accompanying drawings are as follows: conveying platform 1, copper foil conveying assembly 2, tension detection device 3, longitudinal tension control assembly 4, transverse tension control assembly 5, normal tension control assembly 6, copper foil 7, first bracket 8, second bracket 9, third bracket 10, first transmission roller 11, second transmission roller 12, third transmission roller 13, first telescopic device 14, fourth bracket 15, slide 16, floating roller 17, support 18, second telescopic device 19, movable base 20, support rod 21, vertical cylinder 22, first pressure plate 23, second pressure plate 24, core rod 25, first end plate 26, first slide bar 27, spring 28, second end plate 39, second slide bar 30, slide 31, threaded sleeve 32, conveyor belt 33, fourth transmission roller 34, fifth bracket 35, third telescopic device 36, guide rod 37, guide seat 38, baffle bar 39, touch rod 40, angle sensor 41. DETAILED DESCRIPTION

[0027] like Figures 1 to 7 As shown, the present invention is a continuous production equipment for ultra-long meters of lithium battery copper foil with anti-foil breakage, including a conveying platform 1, a copper foil conveying assembly 2 installed on the conveying platform 1 for conveying the copper foil 7, and a tension detection device 3 located on one side of the copper foil 7 for detecting the tension of the copper foil 7. The conveying platform 1 is square as a whole, and the upper surface is parallel to the horizontal plane. The copper foil conveying assembly 2 can provide conveying force to the copper foil 7 through the action of the active conveying roller.

[0028] Among them, the tension detection device 3 disclosed in the present invention can detect the longitudinal, transverse and normal tension of the copper foil 7 respectively. The tension detection device 3 can adopt the existing tension detection equipment, and can realize the tension detection of the copper foil 7 in three directions, wherein the longitudinal direction is the extension direction of the copper foil 7, the transverse direction is the width direction of the copper foil 7, and the normal direction is the direction perpendicular to the surface of the copper foil 7.

[0029] Furthermore, the conveying platform 1 disclosed in the present invention is equipped with a longitudinal tension control assembly 4, a transverse tension control assembly 5, and a normal tension control assembly 6 for the copper foil 7. The longitudinal tension control assembly 4, the transverse tension control assembly 5, and the normal tension control assembly 6 can respectively control the longitudinal, transverse, and normal tensions of the copper foil 7, thereby ensuring a more stable tension of the copper foil 7 during conveyance. Of course, the control here does not only refer to changing the tension of the copper foil 7, but also includes stabilizing the tension.

[0030] Specifically, the copper foil conveying assembly 2 disclosed in the present invention includes a first bracket 8 installed on the upper side of the conveying platform 1, a second bracket 9 and a third bracket 10 installed on the side of the conveying platform 1, the second bracket 9 and the third bracket 10 are both located on the right side of the conveying platform 1, the plane where the second bracket 9 and the third bracket 10 are located is parallel to the upper surface of the conveying platform 1, and the plane where the first bracket 8 is located is perpendicular to the upper surface of the conveying platform 1, and the first transmission roller 11, the second transmission roller 12 and the third transmission roller 13 are respectively installed on the first bracket 8, the second bracket 9 and the third bracket 10, and the second transmission roller 12 and the third transmission roller 13 are arranged in parallel and spaced apart.

[0031] In order to make the overall structure more compact, the present invention installs the longitudinal tension control component 4 on the lower side of the copper foil 7. The longitudinal tension control component 4 includes a first telescopic device 14, a fourth bracket 15, a slide 16, and a floating roller 17. The first telescopic device 14 adopts a cylinder and is controlled by a controller. One end of the first telescopic device 14 is hinged to the support 18 on the conveying platform 1, and the output end of the first telescopic device 14 is connected to the fourth bracket 15. The two ends of the fourth bracket 15 are respectively connected to the two slides 16. The two slides 16 rotate simultaneously with the floating roller 17. The displacement direction of the floating roller 17 is parallel to the longitudinal direction of the copper foil 7. The copper foil 7 is output after being transmitted by the first transmission roller 11, the second transmission roller 12, the floating roller 17 and the third transmission roller 13 in sequence. After being tensioned by the floating roller 17, it is connected to the third transmission roller 13. The floating roller 17 plays a tensioning role at this time. Therefore, when the first telescopic device 14 outputs linear displacement, under the tension of each transmission roller and the conveying structure itself, the floating roller 17 can drive the copper foil 7 to extend or retract, thereby controlling and adjusting the longitudinal tension of the copper foil 7, which is more convenient.

[0032] In this embodiment, the lateral tension control device includes a second telescopic device 19, a movable base 20, a support rod 21, a vertical cylinder 22, a first pressure plate 23, a second pressure plate 24 and an elastic pressure assembly. The second telescopic device 19 also uses a cylinder, which can drive the movable base 20 to move laterally. One end of the second telescopic device 19 is hinged to the conveying platform 1, and the output end of the second telescopic device 19 is connected to the movable base 20. The movable base 20 is connected to the vertical cylinder 22 above through the support rod 21. The upper limit of the vertical cylinder 22 is equipped with a first pressure plate 23, and the second pressure plate 24 is slidably installed on the vertical cylinder 22. An elastic pressure assembly for elastically pressing the second pressure plate 24 against the first pressure plate 23 is installed in the vertical cylinder 22. The copper foil 7 is clamped between the first pressure plate 23 and the second pressure plate 24. By providing a first and second compression plates 23, 24 that press against each other, the surface of the copper foil 7 can be elastically compressed. After the base 20 is moved laterally, the first and second compression plates 23, 24 can pull the surface of the copper foil 7 laterally to control the lateral tension. Of course, the distance that the second telescopic device 19 controls the movement of the movable base 20 corresponds to the lateral tension detection value, thus ensuring stable tension control.

[0033] The device of the present invention uses a compression plate made of rubber. The compression plate and the vertical cylinder 22 can rotate relative to each other, which also reduces the problem of surface damage of the copper foil 7 caused by excessive friction between the copper foil 7 and the compression plate. The outer edge of the compression plate is provided with an outward curved outer edge, which can better cooperate with the copper foil 7 and make the copper foil 7 more smoothly inserted.

[0034] In this embodiment, the elastic compression assembly includes a core rod 25, a first end plate 26, a first slide bar 27, a spring 28, a second end plate 39, and a second slide bar 30. A vertical slide groove 31 is provided on the surface of the vertical cylinder 22. The core rod 25 is coaxially mounted in the center of the vertical cylinder 22. The first end plate 26 and the second end plate 39 are slidingly sleeved on the core rod 25. The first end plate 26 and the second end plate 39 are respectively fixed with the first slide bar 27 and the second slide bar 30. The first slide bar 27 and the second slide bar 30 are slidably arranged in the slide groove 31. After the second slide bar 30 extends out of the slide groove 31, it is pressed against the second compression disc 24. The second slide bar 30 of the present invention provides elastic support force through the spring 28, which can elastically compress the second compression disc 24. The overall structure is compact and installation is more convenient.

[0035] In this embodiment, the lower end of the core rod 25 is threadedly connected to a threaded sleeve 32, and the upper end of the threaded sleeve 32 abuts against the first end plate 26. By rotating and axially moving the threaded sleeve 32, the initial preload of the spring 28 can be adjusted, thereby adjusting the clamping force between the first clamping plate 23 and the second clamping plate 24.

[0036] In this embodiment, the normal tension control assembly 6 includes a conveyor belt 33, a fourth transmission roller 34 for tensioning the conveyor belt, and a fifth bracket 35 for supporting the fourth transmission roller 34. The lower surface of the conveyor belt is pressed against the upper surface of the copper foil 7. By providing a conveyor belt 33 with a certain tension and attaching it to the upper surface of the copper foil 7, the normal tension of the copper foil 7 can be controlled, thereby reducing normal vibration of the copper foil 7 during transportation.

[0037] In this embodiment, the fifth bracket 35 is connected to the output end of the third telescopic device 36, and the third telescopic device 36 is installed on the conveying platform 1. By controlling the length of the third telescopic device 36, the pressing force of the conveyor belt 33 on the surface of the copper foil 7 can be controlled.

[0038] In this embodiment, the slide 16 is slidably connected to the guide rod 37, which is parallel to the surface of the copper foil 7 and fixedly mounted on the conveying platform 1 via a guide seat 38. The guide rod 37 guides the slide 16, which can make the movement of the floating roller 17 more stable.

[0039] In this embodiment, a stopper 39 is fixedly connected to the outer end of the slide 16. A trigger rod 40 is mounted on the side of the stopper 39. The lower end of the trigger rod 40 is connected to an angle sensor 41, which is connected to an alarm via a controller. When the slide 16 excessively moves, the stopper 39 triggers the trigger rod 40 to sound an alarm. This alarm stops the conveyance of the copper foil 7, allowing manual maintenance and repair of the device to avoid further economic losses.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A device for continuously producing ultra-long lengths of lithium battery copper foil with an anti-breakage feature, characterized by: The invention comprises a conveying platform, a copper foil conveying assembly installed on the conveying platform for conveying copper foil, and a tension detection device located on one side of the copper foil for detecting the tension of the copper foil, wherein the tension detection device can detect the longitudinal, transverse and normal tensions of the copper foil respectively. The conveying platform is equipped with a longitudinal tension control assembly, a transverse tension control assembly and a normal tension control assembly for the copper foil; the copper foil conveying assembly comprises a first bracket installed on the upper side of the conveying platform, a second bracket and a third bracket installed on the side of the conveying platform, a first transmission roller, a second transmission roller and a third transmission roller are installed on the first bracket, the second bracket and the third bracket respectively, the longitudinal tension control assembly is installed on the lower side of the copper foil, the longitudinal tension control assembly comprises a first telescopic device, a fourth bracket, a slide and a floating roller, one end of the first telescopic device is hinged to a support on the conveying platform, the output end of the first telescopic device is connected to the fourth bracket, the two ends of the fourth bracket are respectively connected to two slides, a floating roller is rotated between the two slides, the displacement direction of the floating roller is parallel to the longitudinal direction of the copper foil, and the copper foil passes through the first transmission roller, the second transmission roller, the floating roller and the third transmission roller in sequence. Output after transmission; the lateral tension control component includes a second telescopic device, a movable base, a support rod, a vertical cylinder, a first pressure plate, a second pressure plate and an elastic pressure component, one end of the second telescopic device is hinged to the conveying platform, the output end of the second telescopic device is connected to the movable base, the movable base is connected to the vertical cylinder above through the support rod, the upper limit of the vertical cylinder is equipped with a first pressure plate, the second pressure plate is slidably installed on the vertical cylinder, and an elastic pressure component for elastically pressing the second pressure plate to the first pressure plate is installed in the vertical cylinder, the copper foil is clamped between the first pressure plate and the second The cam is secured to the upper and lower ends of the cam, and the cam is secured to the lower ends of the cam when the cam is in a position to move relative to the first end of the cam.

2. The equipment for continuously producing ultra-long lengths of lithium battery copper foil with anti-foil breakage according to claim 1, characterized in that: The normal tension control assembly includes a transmission belt, a fourth transmission roller for tensioning the transmission belt, and a fifth bracket for supporting the fourth transmission roller. The lower surface of the transmission belt is pressed against the upper surface of the copper foil.

3. The equipment for continuously producing ultra-long meters of anti-breakage lithium battery copper foil according to claim 2, characterized in that: The fifth bracket is connected to the output end of the third telescopic device, and the third telescopic device is installed on the conveying platform.

4. The equipment for continuously producing ultra-long meters of anti-breakage lithium battery copper foil according to claim 1, characterized in that: The slide is slidably connected to a guide rod, the guide rod is parallel to the surface of the copper foil, and the guide rod is fixedly mounted on the conveying platform through a guide seat.

5. The equipment for continuously producing ultra-long meters of lithium battery copper foil with anti-foil breakage according to claim 1 is characterized in that: The outer end of the slide is fixedly connected to a blocking rod, a trigger rod is installed on the side of the blocking rod, the lower end of the trigger rod is connected to an angle sensor, and the angle sensor is connected to an alarm through a controller.

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