Non-contact immersion device and composite foil production system

Abstract

The invention discloses a non-contact liquid immersion device and a composite foil production system, and the non-contact liquid immersion device comprises a first liquid immersion tank, a second liquid immersion tank, a third liquid immersion tank and a third liquid immersion tank, the steering pipe body is arranged in the first immersion liquid tank, and the material entering the first immersion liquid tank leaves the first immersion liquid tank after passing through the steering pipe body; a cavity is formed in the steering pipe body, a plurality of liquid outlet holes are formed in the surface of the steering pipe body, and liquid flows out of the liquid outlet holes so that materials can float on the outer side of the pipe body to pass through the steering pipe body. And the liquid inlet pipeline is communicated with the liquid outlet hole through the cavity of the steering pipe body. Non-contact transmission liquid immersion and steering can be achieved, and when a material is a membrane material, strain of the material and friction to the surface of the material are reduced. The material can be protected, and tensile deformation and strain can be avoided. The material immersion effect and the material treatment quality are improved, and the corresponding immersion material conveying device is simpler and more convenient to maintain and replace, simple in structure and low in cost.

Description

Technical Field

[0001] This application relates to the technical field of immersion devices, and more specifically, to a non-contact immersion device and a composite foil production system. Background Art

[0002] In order to improve the surface characteristics of materials or pre-treat materials, during the processing of rolled materials, it is often accompanied by the process of unwinding and soaking in chemical liquids; for example, during the production of composite foils, it involves the treatment of passivation liquid. In such production processes, in order to facilitate composite or other processing processes, it is usually necessary to cooperate with upstream and downstream transmissions to keep the material in a stretched state. Based on this, in order to facilitate the film roll to enter the tank filled with liquid for immersion, guide rollers are usually arranged at the bottom of the tank to make the film roll turn into the tank and continue to be transmitted downstream after passing through the guide rollers. In this process, the material will inevitably come into contact with the roller surface during the immersion process, and may be stretched and deformed or damaged due to factors such as friction and stretching. At the same time, the guide rollers under the liquid often need to be sealed, which has problems such as complex structure, high cost, and difficult stability guarantee.

[0003] Therefore, there is an urgent need in the prior art for a non-contact immersion device to realize immersion treatment during the transmission process, improve the existing immersion feeding structure, and avoid the adverse effects caused by roller surface contact during the immersion process. Summary of the Invention

[0004] This application aims to overcome at least one of the above-mentioned deficiencies in the prior art, and provides a non-contact immersion device and a composite foil production system, which improve the immersion feeding structure, solve the adverse effects caused by contact with the roller during the transmission immersion process in the prior art, and improve the immersion effect and the quality of corresponding products.

[0005] The technical solution adopted in this application is that a non-contact immersion device includes: A first immersion tank, having an open tank body for containing liquid; A steering tube body, arranged in the first immersion tank, and the material entering the first immersion tank leaves the first immersion tank after passing around the steering tube body; a cavity is provided inside the steering tube body, and a plurality of liquid outlet holes are arranged on the surface of the steering tube body, and the liquid discharged from the plurality of liquid outlet holes makes the material float outside the steering tube body to pass through the steering tube body; A liquid inlet pipeline, which is communicated with the liquid outlet holes on the corresponding steering tube body through the cavity of the steering tube body.

[0006] In this application, the liquid inlet pipe supplies liquid to the liquid outlet holes, and the liquid jetting out from the liquid outlet holes forms a thrust area outward. When the material enters the first immersion tank, the multiple liquid outlet holes of the turning pipe cooperate to make the material float outside the turning pipe. At this time, the material shows a feeding process without contacting the turning pipe. At the same time, whether the material is on the side close to the turning pipe or the side far from the turning pipe, it can fully contact the liquid to achieve full treatment of the material. Based on the non-contact immersion device described in this application, non-contact turning can be achieved. When the material is a film material, it can reduce the stretching and frictional damage to the surface of the material. It is beneficial to protect the material itself and avoid stretching deformation, pulling damage, etc. In addition to ensuring the immersion effect of the material and the quality of the material, the corresponding immersion feeding device is simpler and more convenient to repair and replace, and structures such as transmission bearings, bearing seats, and guide rollers are cancelled, with a simple structure and low cost.

[0007] Specifically, the liquid inlet pipe supplies liquid to the liquid outlet holes, and the liquid sprayed outward from the liquid outlet holes forms an outward thrust based on the water pressure. When the material passes through the turning pipe, if the material turns through the lower side of the turning pipe, at this time, the material has an upward movement tendency due to the stretching of the upstream and downstream winding and unwinding. And at this time, the liquid outlet holes on the lower side of the turning pipe provide a downward thrust, so the material will stay below the turning pipe, float on the lower side of the turning pipe and continuously pass through the turning pipe. Similarly, when the material turns through the upper side of the turning pipe, there is the same process. The liquid outlet holes are arranged on the upper side of the turning pipe, and the material floats on the upper side of the pipe and continuously passes through the turning pipe. Among them, the gap between the material and the turning pipe can be adjusted by adjusting the water pressure of the liquid inlet pipe or the water pressure in cooperation with the stretching tension of the upstream and downstream of the material, etc.

[0008] A cavity is provided inside the turning pipe, and the liquid inlet pipe is communicated with the liquid outlet holes through the cavity. The turning pipe can be directly communicated with the liquid inlet pipe to form a convenient liquid outlet path. The liquid in the liquid inlet channel directly enters the cavity and is discharged outward from the liquid outlet holes. According to the requirements of the internal cavity, the corresponding pipe material of the turning pipe can also be selected.

[0009] Further, the liquid includes liquids such as passivation liquid. For example, in the post-processing process of common composite current collectors in the prior art, it involves the above-mentioned roller immersion process, including the passivation process. And this application is applied to the passivation liquid treatment. In addition to being convenient for improving the passivation effect, more importantly, it can avoid friction and surface loss of ultra-thin materials, and ensure the improvement of product quality.

[0010] Further, on the turning pipe, the liquid outlet holes are at least arranged in an array; in addition, it can also be further arranged in a rectangular arrangement, a mesh arrangement or a combined arrangement, etc., so as to uniformly discharge liquid outward to form an appropriate thrust; the liquid is uniformly fed and pushed longitudinally and horizontally to achieve the corresponding appropriate floating and pushing effect according to the actual effect.

[0011] Further, the diameter of the liquid outlet hole ranges from 0.8 to 2.2 mm; and / or, liquid outlet holes are provided both in the longitudinal direction and circumferentially of the steering pipe body; and / or, a groove-shaped liquid outlet groove is provided on the steering pipe body, the liquid outlet holes are arranged on the bottom surface of the liquid outlet groove, and the liquid outlet holes communicate with the liquid outlet groove; the liquid discharged from the liquid outlet holes is discharged outward through the liquid outlet groove. Setting the diameter facilitates controlling the range of the liquid outlet hydraulic pressure, and cooperating with the liquid outlet holes with a certain density distribution to achieve a relatively uniform outward thrust; and the liquid outlet holes are arranged in the liquid outlet groove, which facilitates forming a diffused pushing area outward through the liquid outlet groove. Only a small number of liquid outlet grooves need to be provided circumferentially to float and push the corresponding passing materials, and it is convenient to avoid the interference flow between adjacent liquid outlet holes circumferentially. The liquid outlet groove can be a liquid outlet groove whose length direction is consistent with the length direction of the steering pipe body.

[0012] Further, it includes a plurality of steering pipe bodies, and the material passes through the plurality of steering pipe bodies in an S-shaped path. Further, it includes more than three steering pipe bodies arranged in a staggered manner, so that the material passes through all the steering pipe bodies in an S-shaped path.

[0013] Further, a plurality of liquid outlet grooves are uniformly arranged at least circumferentially on the side of the steering pipe body where the material passes; that is, circumferentially of the steering pipe body, at least ensure that liquid outlet grooves are provided on the side where the material passes (the area where the material generates a counteracting force with the steering pipe body when passing through), which is convenient to provide a thrust opposite to the passing material through the liquid outlet holes and the liquid outlet grooves. The uniform arrangement is beneficial to uniformly act on each position of the material, so that the material floats uniformly outside the steering pipe body and avoids conditions such as offset caused by uneven thrust. Further, the liquid discharged from the plurality of liquid outlet grooves jointly forms a liquid outlet action area; further, the liquid outlet action area is opposite to the material passing through the steering pipe body, and the plurality of liquid outlet grooves are uniformly symmetrically distributed with the middle of the liquid outlet action area as the center. Taking the example that the material passes under the steering pipe body and the positions of the material on the entering side and the leaving side are symmetrical, then at least a plurality of liquid outlet grooves are provided on the lower side of the steering pipe body at this time, and the plurality of liquid outlet grooves are uniformly symmetrically distributed in the circumferential direction of the steering pipe body with the lower end of the steering pipe body as the symmetry center.

[0014] Further, the cross-sectional shape of the liquid outlet groove is an inverted trapezoid. Further still, the apex angle range of the inverted trapezoid is 90 to 150°. The liquid outlet groove can conduct and discharge the liquid from the liquid outlet holes in an outward diffusing manner, so as to form an outward diffusing thrust area. Further, the depth of the liquid outlet groove is 1 to 20 mm; when the steering pipe body is formed of a PPH pipe with a thin pipe wall, etc., the depth of the liquid outlet groove can be 1 to 2 mm. Further still, when the length of the liquid outlet groove in the longitudinal direction of the steering pipe body is short, a plurality of liquid outlet grooves can also be provided in the longitudinal direction of the steering pipe body.

[0015] Further, the width of the liquid outlet acting area in the circumferential direction accounts for more than 1 / 5 of the circumferential length of the steering pipe body; further, the width of the liquid outlet acting area in the circumferential direction accounts for more than 2 / 9 of the circumferential length of the steering pipe body; furthermore, the width of the liquid outlet acting area in the circumferential direction accounts for 2 / 9 - 2 / 3 of the circumferential length of the steering pipe body. To ensure the uniform distribution of the position of the liquid outlet acting material, a certain degree of coverage in the circumferential direction needs to be ensured; at the same time, to avoid the mutual interference of the liquid outlet holes at the edge positions of the liquid outlet acting area and unable to act uniformly, it is necessary to ensure that the width of the set liquid outlet acting area range is greater than the width of the actual material counteracting force area at this time, so that the liquid outlet holes corresponding to the edges of the actual material acting area are not the liquid outlet holes at the edge positions of the liquid outlet acting area.

[0016] Further, the width of the liquid outlet groove is 1 - 2.5 mm; and / or, in the length direction of the steering pipe body, the distance between adjacent liquid outlet holes is 5 - 15 mm. Specifically, when the liquid outlet holes are located in the liquid outlet groove, the distance between adjacent liquid outlet holes in the same liquid outlet groove is 5 - 15 mm; further, three liquid outlet grooves are symmetrically and uniformly arranged on the side circumference of the material of the steering pipe body; the central angle formed corresponding to the two outermost liquid outlet grooves is 100 - 120°; or, two liquid outlet grooves are symmetrically and uniformly arranged on the side circumference of the material of the steering pipe body; the central angle formed between the two liquid outlet grooves is 80 - 100°.

[0017] Further, a first inlet roller and a first outlet roller are respectively fixed on both sides of the first immersion tank. The material enters the first immersion tank through the first inlet roller and is guided downstream by the first outlet roller after leaving the first immersion tank.

[0018] Further, a second immersion tank is further included, and the first immersion tank is arranged in the second immersion tank; a liquid inlet pipe installation hole is provided on the side wall of the second immersion tank; the second immersion tank is provided with a liquid discharge port; the liquid inlet pipe and the liquid discharge port are connected through a circulation pump. Further, when the liquid outlet holes continuously discharge liquid to fill the first immersion tank, the excess liquid overflows from the upper end of the first immersion tank and enters the second immersion tank, and the liquid discharge port of the second immersion tank is discharged outward under the action of the circulation pump and finally circulates to the liquid inlet pipe. That is, in this application, the second immersion tank can be used as a containing space for liquid transition and is convenient for installing other components such as liquid inlet pipes.

[0019] Further, a second inlet roller and a second outlet roller are respectively fixed on both sides of the second immersion tank; the material moves towards the first immersion tank in the second immersion tank through the second inlet roller and is guided downstream by the second outlet roller after leaving the second immersion tank.

[0020] Further, the second inlet roller is higher than the first inlet roller; the second outlet roller is higher than the first outlet roller. Further, the material enters the first immersion tank through the second inlet roller and the first inlet roller, then leaves the first immersion tank after passing through the turning pipeline in the first immersion tank, and is guided downstream through the first outlet roller and the second outlet roller.

[0021] Further, the material passes by abutting against the first inlet roller and the first outlet roller through the same side surface. Further still, the material passes through the first inlet roller, the second inlet roller, the first outlet roller, and the second outlet roller through the same side surface. This enables all inlets and outlets to act only on one side of the material, avoiding contact with the other side and having an impact on the quality. For example, if there is an uncompounded side and a compounded side, it can act only on the compounded side, and at the same time, the turning pipe body can achieve non-contact feeding, thus basically completely avoiding the adverse effects on the material during the feeding process.

[0022] Further, the first immersion tank is provided with a liquid discharge port, and the inlet pipeline and the liquid discharge port are connected and communicated through a circulation pump. That is, in addition to the above-mentioned way of forming a circulation channel through the second immersion tank, by providing a liquid discharge port in the first immersion tank, a circulation path can also be realized.

[0023] Further, the turning pipe body is formed by a PPH pipe; and / or, a regulating valve for adjusting the water pressure is provided on the inlet pipeline; and / or, a filter column is provided on the inlet pipeline. Based on the hydraulic pushing principle of this application, using a PPH pipe can realize the feeding and turning of the material in the immersion tank, and based on the floating pushing mode of the turning pipe body of this application, no sealing, bearing seats, and complex roller structures are required; the turning pipe body is convenient to use an anti-corrosion material pipe body, and even when immersed in liquid for a long time, it can effectively achieve anti-corrosion and other effects, effectively reducing the equipment cost and maintenance difficulty. More importantly, the turning pipe body of this application does not require complex assembly structures such as sealed bearings, and a single turning pipe body occupies a small space, so multiple turning pipe bodies can be arranged in a smaller space, facilitating the material to pass through multiple turning pipe bodies, increasing the residence time in the immersion area, and fully improving the immersion effect. The regulating valve can be used to adjust the water pressure and further adjust the corresponding hydraulic floating degree. The filter column is convenient for filtering impurities that may be generated during the processing, thereby avoiding possible blockages and other conditions at the liquid outlet holes.

[0024] Another object of this application is to provide a composite foil production system, including the above-mentioned non-contact immersion device. Further, the composite foil includes a composite current collector.

[0025] Compared with the prior art, the beneficial effects of the present application are as follows: It can achieve contactless transmission for dipping and steering. When the material is a film material, it can reduce the stretching and frictional damage to the surface of the material, which is beneficial to protecting the material itself and avoiding stretching deformation and pulling. Moreover, it is convenient to achieve the maximum residence time within the limited space of the dipping tank, significantly improving the dipping effect. In addition to improving the dipping effect on the material and ensuring the material quality, the corresponding dipping and feeding device is simpler and more convenient for maintenance and replacement. Structures such as transmission bearings, bearing seats, and guide rollers are eliminated, with a simple structure, reduced cost, easy anti-corrosion, and long service life. That is, based on the contactless dipping device described in the present application, it can significantly improve the quality of the corresponding processed products and reduce the adverse effects during the feeding and dipping process. Compared with traditional equipment, it reduces the complexity and is conducive to maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a three-dimensional structure diagram of the contactless dipping device of the present application.

[0027] Figure 2 FIG. is a diagram showing the usage state of the contactless dipping device of the present application.

[0028] Figure 3 FIG. is a top view of the contactless dipping device of the present application.

[0029] Figure 4 FIG. is a schematic structural diagram (I) of the contactless dipping device of the present application.

[0030] Figure 5 FIG. is a schematic structural diagram (II) of the contactless dipping device of the present application.

[0031] Figure 6 FIG. is a three-dimensional structure diagram of the steering tube body of the present application.

[0032] Figure 7 FIG. is a front view of the steering tube body of the present application.

[0033] Figure 8 FIG. is a schematic diagram (I) of the floating and pushing effect of the steering tube body of the present application.

[0034] Figure 9 FIG. is a schematic diagram (II) of the floating and pushing effect of the steering tube body of the present application.

[0035] BRIEF DESCRIPTION OF THE DRAWINGS: Contactless dipping device 1000, first dipping tank 1100, first guiding roller 1110, first guiding and separating roller 1120, second dipping tank 1200, second guiding roller 1210, second guiding and separating roller 1220, steering tube body 1300, liquid outlet hole 1310, liquid outlet groove 1320, liquid outlet action area 1330, liquid inlet pipeline 1400, material 1500, central angle α. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The accompanying drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. To better illustrate the following embodiments, some components in the drawings will be omitted, enlarged, or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the following described embodiments are some embodiments of the present invention, rather than all embodiments, and are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. 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. Those not specified in the embodiments are carried out according to conventional conditions or conditions recommended by the manufacturer. Those reagents or instruments not specified by the manufacturer can be obtained as conventional products through commercial purchase. Example 1

[0038] As Figures 1 - 5 shown, this embodiment discloses a non-contact immersion device 1000, including: A first immersion tank 1100, having an open tank body for containing liquid; A turning pipe body 1300, arranged in the first immersion tank 1100, and the material 1500 entering the first immersion tank 1100 leaves the first immersion tank 1100 after passing around the turning pipe body 1300; and a plurality of liquid outlet holes 1310 are arranged on the turning pipe body 1300, and the plurality of liquid outlet holes 1310 cooperate to discharge liquid so that the material 1500 floats outside the turning pipe body 1300 to pass through the turning pipe body 1300; in this embodiment, a plurality of turning pipe bodies 1300 are included, and the plurality of turning pipe bodies 1300 are arranged in a staggered manner, so that the material 1500 passes through all the turning pipe bodies 1300 in an S-shaped path; A liquid inlet pipeline 1400, communicating with the liquid outlet holes 1310; in this embodiment, a cavity is provided in the turning pipe body 1300, and the liquid inlet pipeline 1400 communicates with the liquid outlet holes 1310 through the cavity of the turning pipe body 1300.

[0039] And in this embodiment, the turning pipe body 1300 is formed by a PPH pipe; a regulating valve (not shown in the figure) for adjusting the water pressure is provided on the liquid inlet pipeline 1400; a filter column (not shown in the figure) is provided on the liquid inlet pipeline 1400.

[0040] As Figure 8 、 9As shown, in the present application, the liquid inlet pipe 1400 supplies liquid to the liquid outlet holes 1310, and the liquid jetting out from the liquid outlet holes 1310 forms a thrust area outward. When the material 1500 enters the first immersion tank 1100, the cooperation of multiple liquid outlet holes 1310 of the driving roller body enables the material 1500 to float outside the steering pipe body 1300. At this time, the material 1500 presents a feeding process without contacting the steering pipe body 1300. At the same time, whether the material 1500 is on the side close to the steering pipe body 1300 or the side far from the steering pipe body 1300, it can fully contact the liquid to achieve full treatment of the material 1500. Specifically, the liquid inlet pipe 1400 supplies liquid to the liquid outlet holes 1310, and the liquid sprayed outward from the liquid outlet holes 1310 forms an outward thrust based on the water pressure; when the material 1500 passes through the steering pipe body 1300, if the material 1500 turns under the steering pipe body 1300, at this time, the material 1500 has a tendency to move upward due to the stretching of the upstream and downstream winding and unwinding, and the liquid outlet holes 1310 on the lower side of the steering pipe body 1300 at this time provide a downward thrust, then the material 1500 will stay below the steering pipe body 1300, float on the lower side of the steering pipe body 1300 and continuously pass through the steering pipe body 1300. Among them, the gap between it and the steering pipe body 1300 can be adjusted by adjusting the water pressure of the liquid inlet pipe 1400 and / or the stretching tension of the upstream and downstream of the material 1500. The liquid includes liquids such as passivation liquid. For example, the present application can be applied to passivation liquid treatment.

[0041] In this embodiment, a cavity is provided inside the steering pipe body 1300, and the liquid inlet pipe 1400 is communicated with the liquid outlet holes 1310 through the cavity. The steering pipe body 1300 can be directly communicated with the liquid inlet pipe 1400, and the liquid in the liquid inlet channel directly enters the cavity and is discharged outward from the liquid outlet holes 1310. According to the requirements of the internal cavity, a suitable pipe material for the steering pipe body 1300 can also be selected. On the steering pipe body 1300, the liquid outlet holes 1310 are at least arranged in an array; in addition, it can also be further arranged in a rectangular arrangement, a mesh arrangement or a combined arrangement, etc., so as to uniformly discharge liquid outward to form an appropriate thrust; achieve a corresponding appropriate floating and thrusting effect according to the actual effect; in this embodiment, it can be arranged in a regular array of rectangles.

[0042] Such as Figure 6 、 7As shown, in addition to directly forming a pushing structure by using the liquid outlet hole 1310 on the surface, in order to improve the floating push stability and controllability, in this embodiment, a groove-shaped liquid outlet groove 1320 is provided on the steering pipe body 1300; the liquid outlet hole 1310 is arranged at the bottom surface of the liquid outlet groove 1320, and both ends of the liquid outlet hole 1310 communicate with the liquid outlet groove 1320 and the cavity; the diameter range of the liquid outlet hole 1310 is 0.8 - 2.2 mm. Through the cooperation of the liquid outlet hole 1310 and the liquid outlet groove 1320, a diffused pushing area can be formed outward for the liquid outlet, and only a small number of liquid outlet grooves 1320 need to be arranged in the circumferential direction to float and push the corresponding passing material 1500, and avoid the interference flow between adjacent liquid outlet holes 1310 in the circumferential direction, etc. The depth of the liquid outlet groove 1320 is 1 - 20 mm; when the steering pipe body 1300 is formed of a thin-walled PPH pipe or the like, the depth of the liquid outlet groove 1320 can be 1 - 2 mm. In addition to directly arranging a through groove in the length direction of the steering pipe body 1300, when the length of the liquid outlet groove 1320 in the length direction of the steering pipe body 1300 is short, multiple liquid outlet grooves 1320 can be arranged in the length direction of the steering pipe body 1300 according to actual needs to cover the overall length of the steering pipe body 1300 (not shown in the figure). In addition, in addition to arranging the conventional liquid outlet groove with a rectangular cross-section, in order to increase the action range of the liquid outlet groove 1320, the cross-sectional shape of the liquid outlet groove 1320 can also be an inverted trapezoid, and the apex angle range of the inverted trapezoid is 90 - 150°, that is, a cross-sectional shape that expands outward in a trumpet shape.

[0043] As Figure 7 , 8 shown, at least a plurality of liquid outlet grooves 1320 are evenly arranged on the circumferential side of the steering pipe body 1300 where the material 1500 passes; at least to ensure that the liquid outlet grooves 1320 are arranged on the side where the material 1500 passes (the area where the material 1500 generates a counteracting force with the steering pipe body 1300 when passing), and a thrust opposite to the passing material 1500 is provided through the liquid outlet hole 1310 and the liquid outlet groove 1320. The plurality of liquid outlet grooves 1320 together form a liquid outlet action area 1330 (this area at least forms a barrier similar to a liquid film to resist the corresponding passing material 1500); the liquid outlet action area 1330 faces the material 1500 passing through the steering pipe body 1300, and the plurality of liquid outlet grooves 1320 are evenly and symmetrically distributed with the middle of the liquid outlet action area 1330 as the center.

[0044] In this embodiment, to ensure a certain degree of coverage in the circumferential direction and that the length of the liquid outlet action area 1330 in the circumferential direction is greater than the length of the counteracting force area of the actual material 1500 (to avoid unstable edge thrust in the liquid outlet action area 1330 when the lengths are the same in the circumferential direction), it can be configured such that the length of the liquid outlet action area 1330 in the circumferential direction accounts for more than 1 / 5 of the circumferential length of the steering tube body 1300; more specifically, the width of the liquid outlet action area 1330 in the circumferential direction accounts for more than 2 / 9 of the circumferential length of the steering tube body 1300; or it is controlled that the length of the liquid outlet action area 1330 in the circumferential direction accounts for 2 / 9 - 2 / 3 of the circumferential length of the steering tube body 1300.

[0045] In this embodiment, the width of the liquid outlet groove 1320 is 1 - 2.5 mm; in the length direction of the steering tube body 1300, the distance between adjacent liquid outlet holes 1310 is 5 - 15 mm; on this basis, two or three liquid outlet grooves can be provided in the circumferential direction in this embodiment. For example, three liquid outlet grooves 1320 are symmetrically and evenly arranged on the side circumference where the material 1500 of the steering tube body 1300 passes through. The central angle α formed corresponding to each other between the two outer liquid outlet grooves 1320 is 100 - 120°, as Figure 7 、 8 shown; another example is that two liquid outlet grooves 1320 are symmetrically and evenly arranged on the side circumference where the material 1500 of the steering tube body 1300 passes through; the central angle α formed corresponding to each other between the two liquid outlet grooves 1320 is 80 - 100°, as Figure 9 shown.

[0046] Such as Figures 2 - 5As shown, the first immersion tank 1100 is respectively fixed with a first introduction roller 1110 and a first deflection roller 1120 on both sides. The material 1500 enters the first immersion tank 1100 through the first introduction roller 1110, and is guided downstream through the first deflection roller 1120 after leaving the first immersion tank 1100. In this embodiment, a second immersion tank 1200 is also included, and the first immersion tank 1100 is arranged in the second immersion tank 1200; the side wall of the second immersion tank 1200 is provided with a liquid inlet pipe 1400 installation hole; the second immersion tank 1200 is provided with a liquid discharge port (not shown in the figure); the liquid inlet pipe 1400 and the liquid discharge port are connected through a circulation pump. When the liquid discharge hole 1310 continuously fills the first immersion tank 1100, the excess liquid overflows from the upper end of the first immersion tank 1100 and enters the second immersion tank 1200. The liquid outlet of the second immersion tank 1200 is discharged outwardly under the action of the circulation pump and finally circulates to the liquid inlet pipe 1400. The second introduction roller 1210 and the second deflection roller 1220 are fixed on both sides of the second immersion tank 1200; the second introduction roller 1210 is higher than the first introduction roller 1110; the second deflection roller 1220 is higher than the first deflection roller 1120. The material 1500 enters the first immersion tank 1100 through the second introduction roller 1210 and the first introduction roller 1110, and then leaves the first immersion tank 1100 after passing through the turning pipe in the first immersion tank 1100, and is guided downstream through the first deflection roller 1120 and the second deflection roller 1220. In the above-mentioned passing process, the material 1500 can pass through the first introduction roller 1110, the second introduction roller 1210, the first deflection roller 1120, and the second deflection roller 1220 through the same side.

[0047] In addition to the overflow of the aforementioned first immersion tank 1100 into the second immersion tank 1200 and the drainage through the second immersion tank 1200, drainage can also be achieved based on the separate first immersion tank 1100, that is, a drainage port is directly provided in the first immersion tank 1100, and the liquid inlet pipe 1400 and the drainage port are connected through a circulation pump. Example 2

[0048] This embodiment discloses a composite foil production system, including the aforementioned non-contact immersion device 1000; the composite foil includes a composite current collector.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A contactless immersion device, characterized in that, Comprising: A first immersion tank, having an open tank body for containing liquid; A turning pipe body, arranged in the first immersion tank, and the material entering the first immersion tank leaves the first immersion tank after passing around the turning pipe body; a cavity is provided in the turning pipe body, and a plurality of liquid outlet holes are arranged on the surface of the turning pipe body, and the liquid discharged from the plurality of liquid outlet holes makes the material float outside the turning pipe body to pass through the turning pipe body; A liquid inlet pipe, communicating with the liquid outlet holes through the cavity of the turning pipe body.

2. The contactless immersion device according to claim 1, wherein The diameter range of the liquid outlet holes is 0.8 - 2.2 mm; and / or, a groove-shaped liquid outlet groove is provided on the turning pipe body, the liquid outlet holes are arranged on the bottom surface of the liquid outlet groove, and the liquid outlet holes communicate with the liquid outlet groove.

3. The non-contact immersion device according to claim 2, wherein At least a plurality of liquid outlet grooves are uniformly arranged in the circumferential direction on the side where the material of the turning pipe body passes; further, the plurality of liquid outlet grooves jointly form a liquid outlet action area; further, the liquid outlet action area faces the material passing through the turning pipe body, and the plurality of liquid outlet grooves are uniformly symmetrically distributed with the middle of the liquid outlet action area as the center.

4. The non-contact immersion device according to claim 3, wherein The circumferential length of the liquid outlet action area accounts for more than 1 / 5 of the circumferential length of the turning pipe body; further, the circumferential length of the liquid outlet action area accounts for more than 2 / 9 of the circumferential length of the turning pipe body; furthermore, the circumferential length of the liquid outlet action area accounts for 2 / 9 - 2 / 3 of the circumferential length of the turning pipe body.

5. The contactless immersion device according to claim 2, characterized in that, The width of the liquid outlet groove is 1 - 2.5 mm; and / or, in the length direction of the turning pipe body, the distance between adjacent liquid outlet holes is 5 - 15 mm; further, three liquid outlet grooves are symmetrically and uniformly arranged in the circumferential direction on the side where the material of the turning pipe body passes; the central angle formed corresponding between the two outer liquid outlet grooves is 100 - 120°; or, two liquid outlet grooves are symmetrically and uniformly arranged in the circumferential direction on the side where the material of the turning pipe body passes; the central angle formed corresponding between the two liquid outlet grooves is 80 - 100°.

6. The contactless immersion device according to claim 1, wherein A first inlet roller and a first outlet roller are respectively fixed on both sides of the first immersion tank, and the material enters the first immersion tank through the first inlet roller and then leaves the first immersion tank under the guidance of the first outlet roller.

7. The non-contact immersion device according to any one of claims 1 to 6, characterized in that, It further includes a second immersion tank, and the first immersion tank is arranged in the second immersion tank; the second immersion tank is provided with a liquid discharge port; the liquid inlet pipe and the liquid discharge port are connected through a circulation pump; and / or, an installation hole for the liquid inlet pipe is provided on the side wall of the second immersion tank; further, a second inlet roller and a second outlet roller are respectively fixed on both sides of the second immersion tank; the material moves towards the first immersion tank in the second immersion tank through the second inlet roller and then leaves the second immersion tank under the guidance of the second outlet roller.

8. The contactless immersion device according to any one of claims 1 to 6, characterized in that The first immersion tank is provided with a liquid discharge port, and the liquid inlet pipe and the liquid discharge port are connected through a circulation pump.

9. The contactless immersion device according to any one of claims 1 to 8, characterized in that, The turning pipe body is formed by a PPH pipe; and / or, a regulating valve for adjusting the water pressure is provided on the liquid inlet pipe; and / or, a filter column is provided on the liquid inlet pipe.

10. A composite foil production system, characterized in that, Comprising the non-contact immersion device according to any one of claims 1 - 9.

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