Membrane material splicing table and device and rewinding machine

Abstract

The utility model belongs to the technical field of current collector membrane material manufacturing, and particularly relates to a membrane material splicing table and device and a rewinding machine. The membrane material splicing table comprises an adsorption base, a movable pressing strip and a limiting block. The adsorption base comprises a base plate and an adsorption structure, the adsorption structure is connected to the base plate, and an adsorption area is formed on the plane where the surface of one side of the base plate in the film thickness direction is located; the movable pressing strips are connected to the adsorption base and located on the two opposite sides of the adsorption area in the extending direction of the membrane material, and the movable pressing strips can adjust the gap between the movable pressing strips and the base plate in the thickness direction of the membrane material so that the membrane material can penetrate through and are used for attaching the membrane material to the plane where the adsorption area is located. The limiting blocks are arranged at the two ends, in the width direction of the membrane material, of the movable pressing strips, at least one of the limiting blocks at the two ends is detachably connected with the movable pressing strips, and the installation position can be adjusted in the width direction of the membrane material relative to the movable pressing strips. The limiting blocks calibrate the two ends of the to-be-spliced membrane material in the width direction, and the uniformity of the end face of a coiled material formed after the membrane material is rolled is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of current collector film material manufacturing, and particularly relates to a film material splicing table, device and rewinder. Background Art

[0002] Vacuum evaporation coating is the main production method for composite current collector film materials. However, during the coating process, the metal liquid surface is often unstable, and the liquid surface boils, causing metal droplets to splash onto the surface of the composite current collector film material and forming bump defects on the composite current collector film material, which has an adverse impact on the product appearance and subsequent coating process.

[0003] In actual production, generally, the composite current collector film material is cut and then spliced. The cutting position of the composite current collector film material is the position where the bump height is greater than the screening size. In this way, the part of the position with unqualified bump height is cut off, and then the bump height of the composite current collector film material is controlled within a suitable range, improving the surface quality of the composite current collector film material.

[0004] The existing film splicing platform is difficult to ensure the alignment of both ends in the width direction of the film material after splicing, resulting in deviation in the flatness of the end face of the coiled material after winding, and even leading to re-winding. Summary of the Utility Model

[0005] This application provides a film material splicing table, device and rewinder to solve the technical problem that the existing film splicing platform is difficult to align both ends in the width direction of the film material.

[0006] According to one aspect of this application, a film material splicing table is provided, which includes an adsorption base, a movable pressure strip and a limiting block. The adsorption base includes a base plate and an adsorption structure. The adsorption structure is connected to the base plate and forms an adsorption area on the plane of one side surface of the base plate in the film material thickness direction; the movable pressure strip is connected to the adsorption base and is located on opposite sides of the adsorption area in the film material extension direction. The movable pressure strip can adjust the gap for the film material to pass through in the film material thickness direction with the base plate, and is used to attach the film material to the plane where the adsorption area is located; the limiting blocks are arranged at both ends of each movable pressure strip in the film material width direction, and at least one of the limiting blocks at both ends is detachably connected to the movable pressure strip, and can adjust the installation position in the film material width direction relative to the movable pressure strip.

[0007] In an optional solution of this application, the movable pressure strip includes a pressure strip and a driving device. Both ends of the pressure strip are connected with a driving device; the pressure strip and the driving device are respectively located on opposite sides of the base plate in the film material thickness direction. The pressure strip and the adsorption area are on the same side and extend in the film material width direction; the driving device is arranged on the base plate and can drive the pressure strip to approach or move away from the base plate, and both ends of the pressure strip are detachably connected with limiting blocks.

[0008] In an alternative embodiment of the present application, the pressing strip includes a pressing strip body and a first magnetic strip; the first magnetic strip is disposed at both ends of the pressing strip body, and the first magnetic strips at both ends extend along the width direction of the film material and can be magnetically connected to the limiting blocks at both ends.

[0009] In an alternative embodiment of the present application, the pressing strip further includes a rubber strip, and the rubber strip is attached to the side wall of the pressing strip body close to the base plate.

[0010] In an alternative embodiment of the present application, the adsorption structure includes a first adsorption plate and a second adsorption plate; the first adsorption plate and the second adsorption plate are spaced apart on the base plate in the film material extension direction, and the outer surfaces of the first adsorption plate and the second adsorption plate are aligned with one side surface of the base plate to form an adsorption area; both the first adsorption plate and the second adsorption plate are provided with adsorption through holes capable of communicating with the negative pressure generator to form a negative pressure suction force in the adsorption area.

[0011] In an alternative embodiment of the present application, the adsorption base further includes a plurality of gas path connectors; the base plate is provided with a first negative pressure groove and a second negative pressure groove, and the first negative pressure groove and the second negative pressure groove are spaced apart in the film material extension direction; the first adsorption plate covers the opening side of the first negative pressure groove, and the second adsorption plate covers the opening side of the second negative pressure groove; the plurality of gas path connectors are disposed on the base plate and on the opposite side of the adsorption area, and each negative pressure groove is correspondingly connected to at least one gas path connector to connect to the negative pressure generator through the gas path connector.

[0012] In an alternative embodiment of the present application, the base plate is provided with a slit, and the slit is located between the first adsorption plate and the second adsorption plate and extends along the width direction of the film material.

[0013] In an alternative embodiment of the present application, the adsorption base further includes a second magnetic strip, and the second magnetic strip is disposed on the base plate and on both sides of the adsorption area in the width direction of the film material.

[0014] According to another aspect of the present application, there is provided a film material splicing device including an outer support frame and the above-mentioned film material splicing table; the outer support frame includes a first roller, a second roller, a first cross beam and columns, the first roller, the first cross beam and the second roller are spaced apart in the film material extension direction, and the columns are disposed at both ends of the first roller, the second roller and the first cross beam; the film material splicing table is disposed on the first cross beam and between the first roller and the second roller.

[0015] According to still another aspect of the present application, there is provided a rewinder including an incoming roll module, a winding roll module and the above-mentioned film material splicing device; the incoming roll module is used to wind the film material after passing through the film material splicing device via the winding roll module.

[0016] In summary, the film material splicing table, device and rewinder provided by the present application have at least the following beneficial effects:

[0017] The film material splicing table includes an adsorption base, a movable pressing strip and a limiting block. The adsorption base includes a base plate and an adsorption structure. Other components of the film material splicing table except the base plate are arranged based on this adsorption base. Among them, the adsorption structure is fixedly installed on the base plate, and an adsorption area is formed on the plane where the surface of the base plate is located. This adsorption area can adsorb the film material.

[0018] Movable pressing strips are arranged on the opposite sides of the adsorption area in the direction of the film material. The movable pressing strips on both sides are fixedly installed on the base plate and form a gap through which the film material can pass with the base plate. The movable pressing strip can change the gap formed between it and the base plate through which the film material passes, so as to attach the film material to the plane where the adsorption area is located.

[0019] For any one of the movable pressing strips, limiting blocks can be detachably connected to both ends in the width direction of the film material. At least one of the limiting blocks at both ends is detachably connected. By adjusting the detachably connected limiting block, the distance between the limiting blocks at both ends in the width direction of the film material is changed, so that the limiting blocks at both ends just meet at both ends of the film material. In this way, the two ends of the film material to be spliced can be aligned in the width direction, and the end face of the coil formed after the film material is wound can be ensured to have good neatness, avoiding rewinding.

[0020] Secondly, since the gap between the limiting blocks at both ends is adjustable, the film material splicing table can also adapt to film materials of different widths and has high versatility. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of a film material splicing device provided according to one embodiment of the present application;

[0023] Figure 2 For Figure 1 Assembly drawing of the film material splicing table and the first cross beam in

[0024] Figure 3 For Figure 2 Schematic diagram of the movable pressing strip in

[0025] Figure 4a For Figure 2 Schematic diagram of the adsorption base from a perspective in

[0026] Figure 4b ForFigure 4a Schematic diagram of the adsorption base in another perspective;

[0027] Figure 4c is Figure 4a Cross-sectional view of the adsorption base at B-B in;

[0028] Figure 5 Schematic diagram of a rewinder provided according to one embodiment of the present application.

[0029] The reference numerals are as follows:

[0030] 1000, film splicing device; 2000, incoming roll module; 3000, winding roll module;

[0031] 100, film splicing table;

[0032] 10, adsorption base; 11, base plate; 12, adsorption structure; 121, first adsorption plate; 122, second adsorption plate; 13, gas path connector; 14, second magnetic strip; 15, hanging rack; A, adsorption area; C1, first negative pressure groove; C2, second negative pressure groove; C3, slit;

[0033] 20, movable pressure strip; 21, pressure strip; 211, pressure strip body; 212, first magnetic strip; 22, driving device; 23, screw;

[0034] 30, limit block;

[0035] 400, outer support frame;

[0036] 401, first roller; 402, second roller; 403, first cross beam; 404, column; 405, second cross beam;

[0037] 410, inner support frame; 411, support platform;

[0038] 500, film. Detailed implementation manners

[0039] In the present application, features limited by "first" and "second" for descriptive purposes only should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Features limited by "first" and "second" may explicitly or implicitly include at least one of the limited features. When the description of "a plurality" appears, it generally means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0040] In this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of this specification, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] Figure 1 FIG. is a schematic diagram of a film splicing device 1000 provided according to one embodiment of this application. Please refer to Figure 1 , the film splicing device 1000 includes an outer support frame 400 and a film splicing table 100.

[0043] The outer support frame 400 includes a first roller 401, a second roller 402, a first cross beam 403, and columns 404. The first roller 401, the first cross beam 403, and the second roller 402 are arranged at intervals in the film extension direction, and the columns 404 are arranged at both ends of the first roller 401, the second roller 402, and the first cross beam 403. The film splicing table 100 is arranged on the first cross beam 403 and located between the first roller 401 and the second roller 402.

[0044] In this embodiment, the outer support frame 400 can be spliced by pipe fittings, profiles, etc., and is specifically a frame structure formed by enclosing and splicing at least the first roller 401, the second roller 402, the first cross beam 403, and the columns 404.

[0045] Among them, the first roller 401, the first cross beam 403, and the second roller 402 are arranged at intervals in the film extension direction. The number of columns 404 is 2, and both ends of the first roller 401, both ends of the first cross beam 403, and both ends of the second roller 402 are respectively connected to the columns 404 on both sides.

[0046] In a specific application, the first roller 401, the first cross beam 403, and the second roller 402 are all arranged to extend along the width direction of the film material. In this way, the film material 500 can bypass the first roller 401 along the extension direction, pass through the film splicing table 100, and then bypass the second roller 402.

[0047] Both the first roller 401 and the second roller 402 are rotatably connected to the column 404, so as to ensure the smoothness of the film material 500 during the conveying process.

[0048] In Figure 1 In the illustrated embodiment, the outer support frame 400 is a rectangular planar frame spliced by multiple rods. Of course, it is not limited to the illustrated embodiment. For example, it can also be a trapezoidal planar frame. It should be noted that in Figure 1 As shown, the extension direction of the film material only indicates the extension direction of the film material section between the first roller 401 and the second roller 402, which is also the length direction of the column 404. The width direction of the film material is the axial direction of the roller, and the thickness direction of the film material is the width direction of the column.

[0049] In a further optional embodiment, the film splicing device 1000 further includes an inner support frame 410, which is enclosed and spliced by multiple rods. The outer support frame 400 further includes a second cross beam 405. The second cross beam 405 and the first cross beam 403 are located on opposite sides of the second roller 402 in the film material extension direction. Both ends of the second cross beam 405 are connected to the columns 404 on both sides.

[0050] The inner support frame 410 is connected to the second cross beam 405 and is located inside the outer support frame 400. A support platform 411 is formed on one side of the inner support frame 410 close to the second roller 402. The support platform 411 is used to install a scraper (not shown in the figure). The distance between the scraper and the second roller 402 is the screening dimension of the height of the convex points on the film material surface.

[0051] It should be understood that the film material 500 wound around the second roller 402 is located between the second roller 402 and the scraper. At the position where the height of the convex points on the film material 500 exceeds the screening dimension height, the scraper intercepts the convex points from passing through, thus resulting in a film breaking phenomenon, that is, the film material 500 is cut off. In addition, the film material 500 here can be a composite current collector film material, but of course it is not limited to this.

[0052] In the illustrated embodiment, the inner support frame 410 is also a rectangular planar frame, and its size is smaller than that of the outer support frame 400, and it is ensured that the inner support frame 410 can be installed inside the outer support frame 400. In a specific application, except for the first roller 401 and the second roller 402, all the rods used to form the outer support frame 400 and the inner support frame 410 are made of aluminum profiles, which have the advantages of light weight and good seismic resistance.

[0053] Figure 2 For Figure 1 the assembly drawing of the film splicing table 100 and the first cross beam 403 in Figure 2 , the film splicing table 100 includes an adsorption base 10, a movable pressing strip 20 and a limiting block 30. The adsorption base 10 includes a base plate 11 and an adsorption structure 12. The adsorption structure 12 is connected to the base plate 11 and forms an adsorption area A on the plane where one side surface of the base plate 11 is located.

[0054] The movable pressing strip 20 is connected to the adsorption base 10 and is located on opposite sides of the adsorption area A in the film extension direction. The movable pressing strip 20 can adjust the gap for the film 500 to pass through in the film thickness direction of the base plate 11, so as to attach the film 500 to the plane where the adsorption area A is located.

[0055] The limiting blocks 30 are arranged at both ends of each movable pressing strip 20 in the film width direction. At least one of the limiting blocks 30 at both ends is detachably connected to the movable pressing strip 20, and the relative movable pressing strip 20 can adjust the installation position in the film width direction.

[0056] In this embodiment, other component members of the film splicing table 100 except the base plate 11 are arranged based on the adsorption base 10. Among them, the adsorption structure 12 is fixedly installed on the base plate 11, and the adsorption structure 12 forms an adsorption area A on the plane where the surface of the base plate 11 is located, and the adsorption area A can adsorb the film 500.

[0057] The movable pressing strips 20 are arranged on opposite sides of the adsorption area A in the film direction. The movable pressing strips 20 on both sides are fixedly installed on the base plate 11 and form a gap for the film 500 to pass through with the base plate 11. Specifically, the film 500 can bypass the first roller 401, then pass through the gap between the base plate 11 and the movable pressing strip 20, pass through the adsorption area A, and then bypass the second roller 402.

[0058] The movable pressing strip 20 can change the gap formed between it and the base plate 11 for the film 500 to pass through, so as to attach the film 500 to the plane where the adsorption area A is located. In this way, even if there is no adsorption force for adsorbing the film 500 in the adsorption area A, the film 500 will not fall off the base plate 11.

[0059] Further, for any one of the movable pressing strips 20, both ends thereof in the width direction of the film material can be detachably connected with limiting blocks 30, and at least one of the limiting blocks 30 at both ends is detachably connected. By adjusting the detachably connected limiting block 30, the distance between the limiting blocks 30 at both ends in the width direction of the film material is changed, so that the limiting blocks 30 at both ends just abut against both ends of the film material 500. In this way, the two ends of the film material to be spliced can be aligned in the width direction, and the end face of the coil formed after the film material 500 is wound can have good neatness, avoiding rewinding again.

[0060] Secondly, since the gap between the limiting blocks 30 at both ends is adjustable, the film material splicing table 100 can also adapt to film materials 500 with different widths, having high versatility.

[0061] Figure 3 For Figure 2 the schematic diagram of the movable pressing strip 20 in []. In a further optional embodiment, the movable pressing strip 20 includes a pressing strip 21 and a driving device 22, and driving devices 22 are connected to both ends of the pressing strip 21.

[0062] The pressing strip 21 and the driving device 22 are respectively located on opposite sides of the base plate 11 in the thickness direction of the film material. The pressing strip 21 and the adsorption area A are on the same side and extend in the width direction of the film material.

[0063] The driving device 22 is arranged on the base plate 11 and can drive the pressing strip 21 to approach or move away from the base plate 11. Both ends of the pressing strip 21 can be detachably connected with limiting blocks 30.

[0064] In this embodiment, each movable pressing strip 20 is at least composed of a pressing strip 21 and a driving device 22. The pressing strip 21 and the driving device 22 are located on opposite sides of the base plate 11 in the thickness direction of the film material, and the pressing strip 21 extends along the width direction of the film material and is on the same side as the adsorption area A.

[0065] The gap through which the film material 500 can pass between the movable pressing strip 20 and the base plate 11 mentioned above refers to the gap between the pressing strip 21 and the base plate 11. For the pressing strip 21 in each movable pressing strip 20, it is driven by the driving devices 22 connected to both ends of the pressing strip 21. Specifically, the pressing strip 21 approaches or moves away from the base plate 11 under the drive of the driving device 22, thereby changing the gap between the pressing strip 21 and the base plate 11.

[0066] In the illustrated embodiment, the driving device 22 is a cylinder and is fixedly installed at the corner of the base plate 11. Its piston rod passes through the base plate 11 and is connected to the pressing strip 21 by a screw 23. The screw 23 here is preferably an anti-dropping screw.

[0067] Furthermore, in this embodiment, the limiting blocks 30 at both ends are detachably connected to the pressure strip 21, which is more conducive to flexible adjustment.

[0068] In a further optional embodiment, the pressure strip 21 includes a pressure strip body 211 and a first magnetic attraction strip 212. The first magnetic attraction strips 212 are arranged at both ends of the pressure strip body 211. The first magnetic attraction strips 212 at both ends extend along the width direction of the film material and can be magnetically connected to the limiting blocks 30 at both ends.

[0069] In this embodiment, the pressure strip 21 at least includes a pressure strip body 211 and a first magnetic attraction strip 212. The number of the first magnetic attraction strips 212 is 2, and they are respectively fixedly installed at both ends of the pressure strip body 211. The detachable connection is realized through the first magnetic attraction strip 212 and the limiting block 30.

[0070] Specifically, the limiting block 30 is provided with a magnetic attraction component. The pressure strip 21 and the limiting block 30 are detachably connected through a magnetic attraction connection method, and the adjustment by the magnetic attraction connection method is quick and convenient. The magnetic attraction component here can be a magnet, an iron block, etc. Of course, it is not limited to using the magnetic attraction connection method to realize the detachable connection. For example, the detachable connection can also be realized by using a plug pin, a screw connection, etc.

[0071] In a further optional embodiment, the pressure strip 21 further includes a rubber strip (not shown in the figure), and the rubber strip is attached to the side wall of the pressure strip body 211 close to the base plate 11.

[0072] In this embodiment, a rubber strip is provided on the side wall of the pressure strip body 211 close to the base plate 11. When the pressure strip 21 presses the film material 500 on the adsorption area A, the rubber strip on the pressure strip body 211 contacts the film material 500, avoiding damage to the film material 500 and ensuring the quality of the film material 500.

[0073] Figure 4a For Figure 2 the schematic diagram of the adsorption base 10 in a perspective view. Figure 4b For Figure 4a the schematic diagram of the adsorption base 10 in another perspective view. Figure 4c For Figure 4a the cross-sectional view of the adsorption base 10 at B-B. Please refer to Figure 4a - Figure 4b .

[0074] In some optional embodiments, the adsorption structure 12 includes a first adsorption plate 121 and a second adsorption plate 122. The first adsorption plate 121 and the second adsorption plate 122 are arranged on the base plate 11 at intervals in the film material extension direction. The outer surface of the first adsorption plate 121 and the outer surface of the second adsorption plate 122 are aligned with one side surface of the base plate 11 to form an adsorption area A. Both the first adsorption plate 121 and the second adsorption plate 122 are provided with adsorption through holes capable of communicating with the negative pressure generator to form a negative pressure suction force in the adsorption area A.

[0075] In this embodiment, the adsorption structure 12 at least includes a first adsorption plate 121 and a second adsorption plate 122, which are fixedly mounted on the base plate 11 and spaced apart in the extension direction of the film material, and their outer surfaces are aligned with one side surface of the base plate 11 to form an adsorption area A. That is, the adsorption area A is in a plane as much as possible to avoid wrinkles on the film material 500 due to adsorption.

[0076] Specifically, both adsorption plates are provided with adsorption through holes, and these adsorption through holes are connected to negative pressure generators, and negative pressure suction can be formed under the action of the negative pressure generator. It should be noted that the negative pressure generator here can be, for example, a vacuum pump, a negative pressure pump, etc.

[0077] In a specific application, the aperture of the adsorption through-holes is very small, that is, they are all microporous structures, ensuring that no pit marks are formed on the film material 500 when the film material 500 is adsorbed. In addition, the entire adsorption plate is covered with adsorption through-holes, ensuring that the adsorption force formed by the adsorption through-holes is evenly distributed on the entire adsorption plate.

[0078] In a further optional embodiment, the adsorption base 10 further includes a plurality of gas path connectors 13. The base plate 11 is provided with a first negative pressure groove C1 and a second negative pressure groove C2, and the first negative pressure groove C1 and the second negative pressure groove C2 are arranged at intervals in the extension direction of the film material.

[0079] The first adsorption plate 121 covers the opening side of the first negative pressure tank C1 , and the second adsorption plate 122 covers the opening side of the second negative pressure tank C2 .

[0080] A plurality of gas circuit connectors 13 are disposed on the base plate 11 and are located at opposite sides of the adsorption area A. Each negative pressure groove is correspondingly connected to at least one gas circuit connector 13 so as to be connected to a negative pressure generator through the gas circuit connector 13 .

[0081] In this embodiment, the base plate 11 is provided with a first negative pressure groove C1 and a second negative pressure groove C2 at intervals in the extension direction of the membrane material. The first negative pressure groove C1 is used to fix the first adsorption plate 121 , and the second negative pressure groove C2 is used to fix the second adsorption plate 122 .

[0082] Specifically, the opening side of the first negative pressure tank C1 is covered by the first adsorption plate 121, and the opening side of the second negative pressure tank C2 is covered by the second adsorption plate 122. In addition, the first negative pressure tank C1 and the second negative pressure tank C2 are provided with through holes on the opposite sides of the corresponding adsorption plates for installing corresponding gas circuit connectors 13, and the negative pressure generator is connected via a pipeline through the gas circuit connector 13.

[0083] In this way, the negative pressure generator can form a negative pressure environment in the first negative pressure groove C1 and the second negative pressure groove C2, and generate adsorption force on the film material 500 through the adsorption through holes of the adsorption plate.

[0084] It should be noted that the film splicing device further includes a control module, which is used to control the negative pressure generator, the driving device 22, etc. to perform operations. When the driving device 22 is a cylinder, the control module here is a pneumatic control module, which can be composed of various pneumatic control valves. Of course, it is not limited to this, and it can be adjusted according to the actual application situation.

[0085] In a further optional embodiment, the base plate 11 is provided with a slit C3, which is located between the first adsorption plate 121 and the second adsorption plate 122, and the slit C3 extends along the width direction of the film.

[0086] In this embodiment, after the film 500 is cut by the scraper on the inner support frame 410, an upper part of the film and a lower part of the film are formed. The cut ends of the upper part of the film and the lower part of the film are not neat. The cut ends of the upper part of the film and the lower part of the film can be pulled to the adsorption area A and pass through the movable pressure strips 20 on both sides, so as to be fixed by the cooperation of the movable pressure strips 20 and the adsorption area A. In this way, the cut ends of the upper part of the film and the lower part of the film overlap in the adsorption area A and cover the slit C3.

[0087] The overlapping film can be cut along the slit C3 by a tool to form neat cut ends on the upper part of the film and the lower part of the film that can be spliced and aligned, and the part with the bump height exceeding the screening size can also be cut off.

[0088] In some optional embodiments, the adsorption base 10 further includes a second magnetic strip 14, and the second magnetic strip 14 is arranged on the base plate 11 and is located on both sides of the adsorption area A in the width direction of the film.

[0089] In this embodiment, the adsorption base 10 further has two second magnetic strips 14, and the two second magnetic strips 14 are respectively arranged on both sides of the adsorption area A in the width direction of the film. The second magnetic strip 14 can cooperate with the magnetizable member to fix the rubber strip, and the rubber strip is used to align and bond the neat cut ends of the upper part of the film and the lower part of the film together, so as to realize the alignment and splicing after screening out the part with unqualified bump height. It should be noted that the magnetizable member includes, for example, magnets, iron blocks, etc., which can be selected according to requirements.

[0090] In some optional embodiments, the adsorption base 10 further includes at least one hanging rack 15, and the hanging rack 15 is connected to the base plate 11 and is located on the opposite side of the adsorption area A. The hanging rack 15 is used for detachably connecting with the first cross beam 403.

[0091] In this embodiment, the hanging bracket 15 can be detachably connected to the first cross beam 403, so as to adjust the position of the entire adsorption base 10 on the first cross beam 403, adapt to the position of the film material 500 for adjustment, and ensure that the film material 500 can overlap with the adsorption area A.

[0092] In the illustrated embodiment, the number of the hanging brackets 15 is two and they are arranged at intervals in the width direction of the film material. The hanging bracket 15 is provided with through holes for fixing with screws. Of course, it is not limited thereto. For example, it can also be fixed by pins or the like.

[0093] To better understand this solution, the process of splicing the film material 500 by the film material splicing device 1000 will be elaborated in detail below.

[0094] Under normal operating conditions, the film material 500 bypasses the first roller 401, passes through the gap between the base plate 11 and the pressing strip 21 and the adsorption area A, and then bypasses the second roller 402.

[0095] When the bumps on the film material 500 that exceed the screening size pass through the gap formed by the second roller 402 and the scraper on the inner support frame 410, the film material 500 is cut off to form an upper part of the film material and a lower part of the film material.

[0096] At this time, the upper part of the film material and the lower part of the film material are pulled out and passed through the pressing strips 21 on both sides, and then the pressing strips 21 are driven by the driving device 22 to be fixed. Moreover, the width position of the film material is calibrated by the limiting blocks 30 on both sides, so that the two sides in the width direction of the upper part of the film material and the lower part of the film material are aligned.

[0097] And, the adsorption area A generates negative pressure to adsorb the overlapping film material 500, so that the film material 500 is flattened and then the overlapping film material 500 is cut by the cutter, so that the upper part of the film material and the lower part of the film material form a flush cut end extending along the width direction of the film material. Correspondingly, the unqualified part of the bump height is cut off.

[0098] The negative pressure of the adsorption area A is turned off, so that the upper part of the film material and the lower part of the film material can be lifted at the adsorption area part, and the rubber strip covering the cut seam C3 is fixed by the magnetic part cooperating with the second magnetic strips 14 on both sides, and the adhesive surface of the rubber strip faces the film material 500.

[0099] The adsorption area A generates negative pressure, and the upper part of the film material and the lower part of the film material are spliced on the rubber strip. When the two are in a straightened state, the flush cut ends can be aligned. Another rubber strip is manually pasted on the opposite side of the rubber strip to cover the joint seam of the two, and the protruding part of the rubber strip in the width direction of the film material is trimmed.

[0100] Finally, the negative pressure of the adsorption area A is turned off and the pressing strip 21 is lifted, so that the winding operation can be continued and the bump detection can be continued.

[0101] Figure 5 Schematic diagram of a rewinder provided according to one embodiment of the present application. Please refer to Figure 5 On the other hand, the present application also provides a rewinder, which includes an unwinding roller module 2000, a winding roller module 3000, and the above-mentioned film splicing device 1000.

[0102] The unwinding roller module 2000 is used to unwind the film material 500 through the film splicing device 1000 and then wind it through the winding roller module 3000.

[0103] Specifically, the unwinding roller module 2000 is used to unwind the coil material formed by the film material 500, splice it after removing the unqualified sections with thickness not meeting the screening size through the film splicing device 1000, and then rewind it through the winding roller module 3000 to obtain a coil material meeting the required conditions.

[0104] Obviously, this rewinder has all the advantages brought by the above-mentioned film splicing device 1000, and will not be repeated here. It should be noted that both the unwinding roller module 2000 and the winding roller module 3000 here can be roller modules driven by a motor as a power source.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A membrane material splicing station, characterized in that: include: An adsorption base (10) comprises a base plate (11) and an adsorption structure (12), wherein the adsorption structure (12) is connected to the base plate (11) and forms an adsorption area (A) on a plane where a surface of one side of the base plate (11) in a film material thickness direction is located; Active pressure strips (20) connected to the adsorption base (10) and located on opposite sides of the adsorption area (A) in the extension direction of the film material, the active pressure strips (20) being capable of adjusting a gap with the base plate (11) in the thickness direction of the film material for the film material (500) to pass through, so as to fit the film material (500) to the plane where the adsorption area (A) is located; and The limit blocks (30) are arranged at both ends of each movable pressure strip (20) in the width direction of the film material, and at least one of the limit blocks (30) at the two ends is detachably connected to the movable pressure strip (20), and the installation position relative to the movable pressure strip (20) can be adjusted in the width direction of the film material.

2. The membrane material splicing station according to claim 1, characterized in that: The movable pressure strip (20) comprises a pressure strip (21) and a driving device (22), and both ends of the pressure strip (21) are connected to the driving device (22); The pressure strip (21) and the driving device (22) are respectively located on opposite sides of the base plate (11) in the thickness direction of the film material, and the pressure strip (21) and the adsorption area (A) are located on the same side and extend in the width direction of the film material; The driving device (22) is arranged on the base plate (11) and is capable of driving the pressure strip (21) to move closer to or farther away from the base plate (11); both ends of the pressure strip (21) are detachably connected to the limit blocks (30).

3. The membrane material splicing station according to claim 2, characterized in that: The pressure strip (21) comprises a pressure strip body (211) and a first magnetic attraction strip (212); The first magnetic strips (212) are arranged at two ends of the pressure strip body (211), and the first magnetic strips (212) at both ends are extended along the width direction of the film material and can be magnetically connected to the limit blocks (30) at both ends.

4. The membrane material splicing station according to claim 3, characterized in that: The pressure strip (21) further comprises a rubber strip, wherein the rubber strip is attached to a side wall of the pressure strip body (211) close to the base plate (11).

5. The membrane material splicing station according to claim 1, characterized in that: The adsorption structure (12) comprises a first adsorption plate (121) and a second adsorption plate (122); The first adsorption plate (121) and the second adsorption plate (122) are arranged on the base plate (11) at intervals in the extension direction of the film material, and the outer surface of the first adsorption plate (121) and the outer surface of the second adsorption plate (122) are aligned with one side surface of the base plate (11) to form the adsorption area (A); The first adsorption plate (121) and the second adsorption plate (122) are both provided with adsorption through holes capable of communicating with a negative pressure generator, so as to form negative pressure suction in the adsorption area (A).

6. The membrane material splicing station according to claim 5, characterized in that: The adsorption base (10) further comprises a plurality of gas path connectors (13); The base plate (11) is provided with a first negative pressure groove (C1) and a second negative pressure groove (C2), and the first negative pressure groove (C1) and the second negative pressure groove (C2) are arranged at intervals in the extension direction of the membrane material; The first adsorption plate (121) covers the opening side of the first negative pressure tank (C1), and the second adsorption plate (122) covers the opening side of the second negative pressure tank (C2); A plurality of the gas circuit connectors (13) are arranged on the base plate (11) and are located on the opposite side of the adsorption area (A), and each negative pressure groove is connected to at least one gas circuit connector (13) so as to be connected to a negative pressure generator via the gas circuit connector (13).

7. The membrane material splicing station according to claim 5, characterized in that: The base plate (11) is provided with a slit (C3), the slit (C3) is located between the first adsorption plate (121) and the second adsorption plate (122), and the slit (C3) is extended along the width direction of the membrane material.

8. The membrane material splicing station according to claim 1, characterized in that: The adsorption base (10) further comprises a second magnetic attraction strip (14), wherein the second magnetic attraction strip (14) is arranged on the base plate (11) and is located on both sides of the adsorption area (A) in the width direction of the film material.

9. A membrane material splicing device, characterized in that: It comprises an external support frame (400) and a membrane material splicing table (100) according to any one of claims 1 to 8; The outer support frame (400) comprises a first roller (401), a second roller (402), a first crossbeam (403) and a column (404); the first roller (401), the first crossbeam (403) and the second roller (402) are arranged at intervals in the extension direction of the film material; the column (404) is arranged at both ends of the first roller (401), the second roller (402) and the first crossbeam (403); The film material splicing platform (100) is arranged on the first crossbeam (403) and is located between the first roller (401) and the second roller (402).

10. A rewinding machine, characterized in that: It comprises a reel-in roller module (2000), a reel-in roller module (3000), and a film material splicing device (1000) according to claim 9; The reel-in roller module (2000) is used to reel the film material (500) through the reel-in roller module (3000) after the film material (500) passes through the film material splicing device (1000).

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