Diaphragm feeding equipment

Abstract

The present invention discloses a membrane feeding device, which includes: a membrane tape roll, which is configured to wind a membrane tape; a membrane tape cutting device, which is configured to cut a membrane tape released from the membrane tape roll; a membrane carrying device, which is configured to receive a membrane cut from the membrane tape by the membrane tape cutting device; a membrane tape traction device, which is configured to clamp the end of the membrane tape and pull the clamped membrane tape through the membrane tape cutting device and then lay the membrane tape on the membrane carrying device; a membrane adsorption device, which is configured to adsorb the membrane carried on the membrane carrying device, and when the adsorbed membrane is released on a battery string formed by stacking welding strips and battery cells, the released membrane is hot-pressed. The membrane feeding device provided by the present invention can conveniently and efficiently stack membranes on the battery string.

Description

Technical Field

[0001] The present invention relates to the technical field of battery string production, and in particular to a membrane feeding device. Background Art

[0002] At present, traditional solar cells use the grid lines on them to lead the photocurrent in the cell to the outside of the cell. Considering the final conductivity, the current grid lines are mostly printed with silver paste. According to different printing processes, solar cells are divided into three-busbar, four-busbar and multi-busbar.

[0003] For the above-mentioned three-busbar, four-busbar and multi-busbar solar cells, currently, multiple welding strips are respectively welded to the busbars of the solar cell by flux, so as to obtain a battery string composed of several battery cells connected in series, and finally realize the conversion of light energy into electrical energy. However, the battery string obtained by welding the welding strips to the busbars not only has a large shading area, which affects the photoelectric conversion efficiency, but also has a high silver paste cost.

[0004] In order to overcome the above problems, busbar-less crystalline silicon solar cells have emerged. The manufacturing process for connecting busbar-less cells in series is to provide upper and lower membranes on both sides of the cell string formed by stacking welding strips and cells.

[0005] Therefore, in order to stack a membrane on a battery string formed by stacking battery cells and welding ribbons, it is necessary to design a device capable of stacking a membrane on the battery string. Summary of the invention

[0006] The object of the present invention is to provide a membrane feeding device for stacking membranes on a battery string.

[0007] In order to achieve the above object, the present invention provides a diaphragm feeding device, the diaphragm feeding device comprising:

[0008] A film tape roll, the film tape roll being configured for winding the film tape;

[0009] A film tape cutting device, the film tape cutting device is configured to cut the film tape released from the film tape roll;

[0010] A film sheet carrying device, the film sheet carrying device is configured to receive the film sheet cut from the film strip by the film strip cutting device;

[0011] A film tape pulling device, which is configured to clamp the end of the film tape and pull the clamped film tape through the film tape cutting device and then lay the film tape on the film sheet carrying device;

[0012] The membrane adsorption device is configured to adsorb the membrane carried by the membrane carrying device, and to perform hot pressing on the released membrane when releasing the adsorbed membrane on a battery string formed by stacking welding strips and battery cells.

[0013] Optionally, the film feeding device further comprises a film tape buffer device, the film tape buffer device comprises a first guide wheel, a second guide wheel and a buffer wheel located between the first guide wheel and the second guide wheel, the rotating shaft of the buffer wheel is configured to be movable along a track, and the track and a line connecting the first guide wheel and the second guide wheel form a preset angle;

[0014] The film tape released from the film tape roll is sequentially wound around the first guide wheel, the buffer wheel and the second guide wheel. When the buffer wheel moves along the track away from the first guide wheel and the second guide wheel, it buffers the film tape released from the film tape roll. When providing the film tape to the film tape cutting device, the buffer wheel moves along the track toward the first guide wheel and the second guide wheel to release the buffered film tape.

[0015] Optionally, the film tape cutting device comprises a frame, a pressing mechanism and a cutting mechanism installed on the frame, the cutting mechanism is arranged at the rear side of the pressing mechanism, the film tape passes through the pressing mechanism and the cutting mechanism in sequence from the front side of the pressing mechanism, and when the pressing mechanism presses the film tape, the cutting mechanism cuts the film tape;

[0016] The clamping mechanism comprises a lower pressing plate and an upper pressing plate located above the lower pressing plate and capable of moving up and down relative to the lower pressing plate; wherein the lower pressing plate extends toward the rear side of the clamping mechanism to form an extension portion that exceeds the upper pressing plate, and at least two notches recessed toward the front side are arranged at intervals along the edge of the edge of the extension portion toward the rear side;

[0017] The film tape pulling device comprises a mounting frame and at least two clamping mechanisms mounted on the mounting frame, each clamping mechanism corresponding to a notch groove of the film tape cutting device;

[0018] When the film tape is laid on the lower pressing plate of the clamping mechanism and extends to the extension portion, each clamping mechanism of the film tape traction device clamps the film tape in the corresponding notch groove and tractions the film tape through the cutting mechanism.

[0019] Optionally, a flexible layer is provided on the bottom surface of the upper pressing plate.

[0020] Optionally, the cutting mechanism includes a lower cutting knife and a lower driving mechanism for driving the lower cutting knife to move up and down;

[0021] The cutting mechanism also includes an upper cutter located above the lower cutter and an upper driving mechanism for driving the upper cutter to move up and down relative to the lower cutter;

[0022] Wherein, a limiting component is arranged on the frame, and the limiting component is arranged to limit the upward movement of the lower cutter to prevent the lower cutter from exceeding the upper surface of the lower pressing plate.

[0023] Optionally, the diaphragm carrying device includes a carrying plate capable of adsorbing the diaphragm, and at least one cutting knife is provided on the carrying plate and moves along the width direction of the carried diaphragm, and the cutting knife divides the entire diaphragm on the carrying plate into at least two diaphragms; wherein a strip groove is provided on the carrying plate for the cutting knife to move.

[0024] Optionally, the film carrier device further comprises a moving mechanism for driving the carrier plate to move between the film strip cutting device and the film adsorption device.

[0025] Optionally, the film adsorption device includes at least two adsorption components, each adsorption component is used to adsorb a film after being divided on the carrying plate;

[0026] The membrane adsorption device further comprises a driving mechanism for driving two adjacent adsorption components to move away from each other.

[0027] Optionally, the membrane adsorption device includes an adsorption component for adsorbing the membrane on the membrane supporting device, and the adsorption component includes an adsorption plate with adsorption holes arranged at the bottom and an electric heating rod above the adsorption plate for heating the adsorption plate.

[0028] Optionally, a flexible layer is provided below the adsorption plate.

[0029] Optionally, the film tape cutting device, the film tape pulling device, and the film sheet adsorption device are respectively configured to be able to be raised and lowered relative to the film sheet carrying device.

[0030] By adopting the membrane feeding equipment provided by the present invention, the membrane can be conveniently and efficiently stacked on the battery string formed by stacking the battery sheets and the welding strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a film sheet feeding device according to one embodiment of the present invention (the film tape traction device is in a state of clamping the film tape at the film tape cutting device);

[0032] Figure 2 Another structural schematic diagram of the membrane feeding device (the membrane tape traction device is in a state of traction film tape being laid on the membrane carrying device);

[0033] Figure 3 It is another structural schematic diagram of the film feeding device (a state in which the carrying plate of the film carrying device moves to the bottom of the film adsorption device, and the film tape traction device moves toward the film tape cutting device);

[0034] Figure 4 It is a structural schematic diagram of a film tape cutting device;

[0035] Figure 5 for Figure 4 The structure schematic diagram of the film tape cutting device shown is viewed from the other side;

[0036] Figure 6 It is a schematic diagram of a structure in which a diaphragm carrying device is movably mounted on a back plate;

[0037] Figure 7 It is a structural schematic diagram of a carrying plate of a diaphragm carrying device;

[0038] Figure 8 It is a structural schematic diagram of the membrane adsorption device;

[0039] Fig. 9 It is a schematic diagram of the structure of a film tape pulling device pulling the film tape from a film tape cutting device.

[0040] Description of Reference Numerals

[0041] 1-film strip roll; 2-buffer device; 21-first guide wheel; 22-second guide wheel; 23-buffer wheel; 24-track; 3-film strip cutting device; 31-pressing mechanism; 311-upper pressing plate; 312-lower pressing plate; 3121-extension part; 3122-notch groove; 313-flexible layer; 314-upper pressing plate driving cylinder; 32-cutting mechanism; 321-upper cutter; 322-lower cutter; 323-upper cutter mounting frame; 324-lower driving cylinder; 325-upper driving cylinder; 33-frame; 34-guide wheel; 35-limiting component; 36-lifting cylinder; 4-membrane belt traction device; 41-upper chuck; 42-lower chuck; 43-upper chuck driving cylinder; 44-mounting frame; 5-diaphragm bearing device; 51-bearing plate; 511-main board; 512-adsorption plate; 513-strip groove; 52-synchronous belt; 53-first slider; 54-toothed block; 55-first motor; 56-pipe connector; 57-scratching knife; 6-diaphragm adsorption device; 61-mounting frame; 62-adsorption component; 63-flexible layer; 64-slide rail; 65-second slider; 66-screw mechanism; 7-back plate. DETAILED DESCRIPTION

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0043] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known structures, methods, devices, implementations, materials or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0044] For ease of description, spatially relative terms such as "upper", "lower", "left", "right", etc. may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the elements described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can also be positioned in other ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used here can be interpreted accordingly.

[0045] The present invention provides a diaphragm feeding device, which comprises:

[0046] A film tape roll 1, wherein the film tape roll 1 is configured to be used for winding a film tape;

[0047] A film tape cutting device 3, the film tape cutting device 3 is configured to cut the film tape released from the film tape roll 1;

[0048] A film sheet carrying device 5, the film sheet carrying device 5 is configured to receive the film sheet cut from the film tape by the film tape cutting device 3;

[0049] The film tape pulling device 4 is configured to clamp the end of the film tape and pull the clamped film tape through the film tape cutting device 3 and then lay the film tape on the film sheet carrying device 5;

[0050] The membrane adsorption device 6 is configured to adsorb the membrane carried by the membrane carrying device 5, and to perform hot pressing on the released membrane when releasing the adsorbed membrane onto a battery string formed by stacking welding strips and battery cells.

[0051] By using the membrane feeding equipment provided by the present invention, the membrane can be conveniently and efficiently stacked on the battery string formed by stacking battery cells and welding strips, and the membrane can be hot-pressed on the battery string.

[0052] The membrane feeding device provided by the present invention is described in detail below according to a specific implementation manner and in conjunction with the accompanying drawings.

[0053] In a specific embodiment, the film feeding equipment also includes a film tape buffer device 2, and the film tape released from the film tape roll 1 is first buffered in the film tape buffer device 2, and the film tape provided to the film tape cutting device 3 is the film tape released from the film tape buffer device 2.

[0054] Specifically, Figure 1 As shown, the film tape caching device 2 includes a first guide wheel 21, a second guide wheel 22 and a buffer wheel 23 located between the first guide wheel 21 and the second guide wheel 22. The rotating shaft of the buffer wheel 23 is configured to be able to move along a track 24. The track 24 forms a preset angle with the line connecting the first guide wheel 21 and the second guide wheel 22. Preferably, the track 24 is perpendicular to the line connecting the first guide wheel 21 and the second guide wheel 22.

[0055] The film tape released from the film tape roll 1 is sequentially wound around the first guide wheel 21, the buffer wheel 23 and the second guide wheel 22. When the buffer wheel 23 moves along the track 24 away from the first guide wheel 21 and the second guide wheel 22, it buffers the film tape released from the film tape roll 1. When providing the film tape to the film tape cutting device 3, the buffer wheel 23 moves along the track 24 toward the first guide wheel 21 and the second guide wheel 22 to release the buffered film tape.

[0056] The film tape cache device 2 may also include a sensor. When the buffer wheel 23 moves toward the first guide wheel 21 and the second guide wheel 22 to a preset position to trigger the sensor, the buffer wheel 23 moves away from the first guide wheel 21 and the second guide wheel 22, and drives the film tape roll 1 to rotate by a motor to release a predetermined length of film tape.

[0057] During operation, when the film tape is pulled by the film tape traction device 4 and passed through the film tape cutting device 3, the buffer wheel 23 of the film tape buffer device 2 moves toward the first guide wheel 21 and the second guide wheel 22. When it moves to the trigger sensor (at this time, the film tape buffer device 2 releases a predetermined length of the film tape), the film tape roll 1 is driven by the motor to rotate to release the predetermined length of the film tape, and the buffer wheel 23 moves away from the first guide wheel 21 and the second guide wheel 22 to buffer the predetermined length of the film tape released by the film tape roll 1.

[0058] The film tape cutting device 3 comprises a frame 33, a pressing mechanism 31 and a cutting mechanism 32 installed on the frame 33. The cutting mechanism 32 is arranged at the rear side of the pressing mechanism 31. The film tape passes through the pressing mechanism 31 and the cutting mechanism 32 in sequence from the front side of the pressing mechanism 31. When the pressing mechanism 31 presses the film tape, the cutting mechanism 32 cuts the film tape.

[0059] The clamping mechanism 31 includes a lower clamping plate 312 and an upper clamping plate 311 located above the lower clamping plate 312 and capable of moving up and down relative to the lower clamping plate 312. Specifically, the lower clamping plate 312 is fixed on the mounting frame 33, and the upper clamping plate driving cylinder 314 drives the upper clamping plate 311 to move up and down to clamp or loosen the film tape extending between the upper clamping plate and the lower clamping plate. A flexible layer 313 is provided on the surface of the upper clamping plate 311 facing the lower clamping plate 312, so that the film tape will not be damaged when being clamped.

[0060] In addition, a guide wheel 34 for guiding the film tape is provided on the front side of the clamping mechanism 31 . The film tape extends from below the guide wheel 34 into between the upper and lower pressing plates of the clamping mechanism 31 , which can facilitate laying of the film tape on the lower pressing plate 312 .

[0061] The cutting mechanism 32 includes a lower cutting blade 322 and a lower driving mechanism for driving the lower cutting blade 322 to move up and down. The lower driving mechanism is preferably as follows: Figure 4 The lower drive cylinder 324 is shown located on both sides of the lower cutter; the cutting mechanism 32 also includes an upper cutter 321 located above the lower cutter 322 and an upper drive mechanism that drives the upper cutter 321 to move up and down relative to the lower cutter 322. The upper drive mechanism is preferably as follows Figure 4 The upper driving cylinder 325 shown has a cylinder body mounted on the frame 33, and a driving end connected to an upper cutter mounting frame 323 on which an upper cutter 321 is mounted. The upper driving cylinder 325 drives the upper cutter 321, and the lower driving cylinder 324 drives the lower cutter 322 to move toward each other to cut the film strip.

[0062] Preferably, a limiting component 35 is provided on the frame 33, and the limiting component 35 is configured to limit the upward movement of the lower cutter 322 to prevent the lower cutter 322 from exceeding the upper surface of the lower pressing plate 312. In other words, when the upper cutter 321 and the lower cutter 322 cut the film tape laid on the lower pressing plate 312, the lower cutter 322 cannot exceed the upper surface of the lower pressing plate 312, so as to avoid affecting the cutting quality of the film tape when the lower cutter moves upward and exceeds the lower pressing plate 312.

[0063] After the upper and lower cutting knives cut the film tape, the clamping mechanism of the film tape traction device 4 is required to clamp the film tape and traction the film tape to move. Therefore, it is necessary to set the end of the film tape to extend toward the film tape traction device 4 to extend the lower pressure plate 312 to facilitate the clamping mechanism of the film tape traction device 4 to clamp the end of the film tape. However, if the film tape is extended too long, the film tape is very likely to sag and it is very likely to cause the film tape to bend. If the distance the film tape is extended is too small, it is difficult for the clamping mechanism to clamp the film tape.

[0064] In order to solve the above problem, in this embodiment, an extension portion 3121 extending beyond the upper pressing plate 311 is formed on the lower pressing plate 312 toward the rear side of the clamping mechanism 31, and at least two notches 3122 recessed toward the front side are arranged at intervals along the edge of the edge of the extension portion 3121 toward the rear side; the film strip pulling device 4 includes a mounting frame 44 and at least two clamping mechanisms mounted on the mounting frame 44, wherein the clamping mechanism may include an upper clamp 41 and a lower clamp 42, and the upper clamp driving cylinder 43 drives the upper clamp 41 to move toward the lower clamp 42 to clamp the film strip, and each clamping mechanism corresponds to a notch 3122 of the film strip cutting device 3. In this way, when the film strip is laid on the lower pressing plate 312 of the clamping mechanism 31 and extends to the extension portion 3121, each clamping mechanism of the film strip pulling device 4 clamps the film strip in the corresponding notch 3122 and pulls the film strip through the cutting mechanism 32. Therefore, by designing the notch groove 3122, the clamping mechanism can conveniently clamp the film tape while preventing the film tape from sagging.

[0065] In this embodiment, the specific structure of the diaphragm supporting device 5 is as follows: Figure 6 and Figure 7 As shown, the diaphragm carrying device 5 includes a carrying plate 51 capable of adsorbing the diaphragm, and the carrying plate 51 is provided with at least one cutting knife 57 that moves along the width direction of the carried diaphragm, and the cutting knife 57 divides the whole diaphragm on the carrying plate 51 into at least two diaphragms 100; wherein, the carrying plate 51 is provided with a strip groove 513 for the cutting knife 57 to move.

[0066] Specifically, Figure 7 As shown, the carrier plate 51 includes a main body 511 and an adsorption plate 512 fixed on the main body 511 for adsorbing the membrane. The upper surface of the adsorption plate 512 is provided with adsorption holes, and a suction channel connected to the adsorption holes is provided inside the adsorption plate 512. Figure 7 The figure shows a pipe joint 56 connected to the suction channel, which enables the adsorption plate 512 to adsorb the membrane by sucking gas.

[0067] The main body 511 is provided with a strip groove 513, and each adsorption plate 512 is fixed on one side of the strip groove 513 ( Figure 7 Only one adsorption plate 512 is shown in the figure, the cutter 57 is installed at one end of the main body 511, and a driving mechanism for driving the cutter 57 to move in the strip groove 513 is provided at the bottom of the main body 511. The driving mechanism can be a screw mechanism or a synchronous belt driven by a motor, and the cutter 57 is driven by the synchronous belt to move. Figure 6 In one embodiment, the first motor 55 drives the synchronous belt, and the synchronous belt drives the cutting knife 57 to move.

[0068] In this embodiment, the film carrier 5 further includes a moving mechanism for driving the carrier plate 51 to move between the film strip cutting device 3 and the film adsorption device 6. When the film carrier 5 moves to a position close to the film strip cutting device 3, it carries the cut film, and then moves to the film adsorption device 6, where the film adsorption device 6 adsorbs the film carried on the film carrier 5.

[0069] Among them, preferably, Figure 6 As shown, the moving mechanism includes a motor, a pulley driven by the motor, and a synchronous belt 52 wound around the pulley, the carrier plate 51 is connected to the toothed block 54 through a first slider 53, the first slider 53 is slidably connected to the back plate 4, and the toothed block 54 is meshed with the synchronous belt 52 through teeth, so that the toothed block 54 meshed with teeth drives the carrier plate 51 to move during the operation of the synchronous belt 52. Of course, the moving mechanism can also adopt, for example, a screw mechanism.

[0070] In this embodiment, the film tape cutting device 3 , the film tape pulling device 4 , and the film sheet adsorption device 6 are respectively arranged to be able to be raised and lowered relative to the film sheet carrying device 5 .

[0071] Specifically, the film tape traction device 4 is configured to be able to be raised and lowered. When the film tape traction device 4 moves to the film tape cutting device 3, it is raised and lowered to a height corresponding to the lower pressure plate 3 of the film tape cutting device 3 to clamp the film tape. After the clamped film tape is moved to be laid on the film sheet supporting device 5, the clamping mechanism 31 of the film tape cutting device 3 clamps the film tape. At this time, the film tape cutting device 3 and the film tape traction device 4 can be driven to descend a predetermined distance at the same time, so that the film tape can be attached to the supporting plate 51 of the film sheet cutting device 5, and then the cutting mechanism 32 of the film tape cutting device 3 cuts the film tape.

[0072] After the carrying plate 51 of the film carrying device 5 carries the cut film, the cutting knife 57 is driven to move along the strip groove 513 to divide the film on the film carrying device 5 into at least two films 100 (such as Figure 6 Then, the carrying plate 51 is driven by the moving mechanism to move to the bottom of the film adsorption device 6 (as shown in FIG. Figure 3 As shown), the membrane is adsorbed by the membrane adsorption device 6.

[0073] The film tape traction device 4 returns to the film tape cutting device 1 to clamp the film tape. In order to avoid the film tape traction device 4 from scratching the supporting plate 51 of the film sheet supporting device 5 during movement, the film tape traction device 4 is driven to rise to a position higher than the supporting plate 51, and then moves toward the direction of the film tape cutting device 3. When moving to the film tape cutting device 3, it descends to a preset position to clamp the film tape.

[0074] The specific structure of the membrane adsorption device 6 is as follows: Figure 8As shown, the film adsorption device 6 includes a mounting frame 61 and at least two adsorption components 62 mounted on the mounting frame 61, and each adsorption component 62 is used to adsorb a film after being divided on the carrier plate 51;

[0075] The membrane adsorption device 6 also includes a driving mechanism for driving two adjacent adsorption components 62 to move away from each other, such as Figure 8 As shown, a slide rail 64 is provided on the mounting frame 61, and a second slider 65 is provided on the adsorption component 62. One of the adsorption components 62 can be fixed relative to the mounting frame 61, and the other adsorption components 62 can be movable, or each adsorption component 62 can be movable, and the movable adsorption component 62 is connected to the second slider 65 that slides with the slide rail 64 and the corresponding driving mechanism, and the adsorption component 62 is driven to move by the driving mechanism. The driving mechanism can be a lead screw mechanism 66 driven by a motor, or it can be a cylinder.

[0076] Among them, the distance between adjacent adsorption components 62 can be determined according to the distance between adjacent ends of welding strips in the battery string. In this way, after at least two membranes adsorbed by the membrane adsorption device 6 are separated from each other, each membrane can be placed on a corresponding welding strip group of the battery string.

[0077] Preferably, the adsorption component 62 of the membrane adsorption device 6 includes an adsorption plate with adsorption holes arranged at the bottom and an electric heating rod for heating the adsorption plate above the adsorption plate 63. In this way, after the adsorption plate 63 releases the adsorbed membrane on the battery string, the adsorption plate 63 heats the released membrane, thereby hot-pressing and fixing the membrane on the battery string.

[0078] Preferably, a flexible layer 63 is provided below the adsorption plate, and the flexible layer 63 can be provided to prevent the diaphragm from being damaged while compressing the diaphragm.

[0079] The specific process of using the diaphragm feeding device provided by the present invention to feed the diaphragm is described below:

[0080] First, if Figure 1 As shown, the film tape released from the film tape roll 1 is sequentially wound around the first guide wheel 21, the buffer wheel 23 and the second guide wheel 23 of the film tape buffer device 2, and extends into the film tape cutting device 3;

[0081] The motor drives the film tape roll 1 to rotate and release the film tape of a predetermined length. During the process of releasing the film tape, the buffer wheel 23 of the film tape buffer device 2 moves away from the first guide wheel 21 and the second guide wheel 22 to buffer the film tape of the predetermined length.

[0082] The film tape traction device 4 clamps the film tape at the rear side of the film tape cutting device 3 and tractions the film tape to move (at this time, the buffer wheel 23 moves toward the first guide wheel 21 and the second guide wheel 22 to release a predetermined length of the film tape). After the film tape is laid on the film sheet supporting device 5, the clamping mechanism 31 of the film tape cutting device 3 clamps the film tape, and then the film tape cutting device 3 and the film tape traction device 4 are respectively lowered by a preset distance, so that the film tape is attached to the film sheet supporting device 5. Figure 1 and Fig. 9 The figure shows the state where the film tape pulling device 4 clamps the film tape at the film tape cutting device 3. Figure 2 The figure shows a state where the film tape pulling device 4 pulls the film tape and moves it to lay the film tape on the film sheet carrying device 5 .

[0083] Then, the cutting mechanism 32 of the film strip cutting device 3 cuts the film strip, and the cut film is adsorbed on the carrying plate 51 of the film sheet carrying device 5, and the cutting knife 57 is driven to move, so as to divide the whole film on the carrying plate 51 into at least two film sheets;

[0084] The film tape pulling device 4 moves upward, returns from above the carrying plate 51 to the film tape cutting device 3 to clamp and pull the film tape again;

[0085] The carrying plate 51 of the film carrying device 5 moves to the bottom of the film adsorption device 6, and each adsorption component 62 of the film adsorption device 6 adsorbs a film from the carrying plate 51 respectively;

[0086] After the adsorption components 62 of the membrane adsorption device 6 are separated from each other by a preset distance, the membrane adsorption device 6 releases the adsorbed membrane on the battery string and hot-presses the released membrane on the battery string.

[0087] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A membrane feeding device, characterized in that: The membrane feeding equipment comprises: a film tape roll, the film tape roll being configured for winding the film tape; A film tape cutting device, the film tape cutting device is configured to cut the film tape released from the film tape roll, the film tape cutting device comprises a frame, a pressing mechanism and a cutting mechanism installed on the frame, the cutting mechanism is arranged at the rear side of the pressing mechanism, the film tape passes through the pressing mechanism and the cutting mechanism in sequence from the front side of the pressing mechanism, and when the pressing mechanism presses the film tape, the cutting mechanism cuts the film tape; the pressing mechanism comprises a lower pressing plate and an upper pressing plate located above the lower pressing plate and capable of moving up and down relative to the lower pressing plate; A film sheet carrying device, the film sheet carrying device is configured to receive the film sheet cut from the film strip by the film strip cutting device; A film tape pulling device, the film tape pulling device is configured to clamp the end of the film tape and pull the clamped film tape through the film tape cutting device and then lay the film tape on the film sheet carrying device; A membrane adsorption device, the membrane adsorption device is configured to adsorb the membrane carried by the membrane carrying device, and when releasing the adsorbed membrane on a battery string formed by stacking welding ribbons and battery cells, hot press the released membrane; A film tape caching device, the film tape caching device comprising a first guide wheel, a second guide wheel and a buffer wheel located between the first guide wheel and the second guide wheel, wherein the rotating shaft of the buffer wheel is configured to be movable along a track, and the track forms a preset angle with a line connecting the first guide wheel and the second guide wheel; The film tape released from the film tape roll is wound around the first guide wheel, the buffer wheel and the second guide wheel in sequence, and the buffer wheel buffers the film tape released from the film tape roll when it moves along the track away from the first guide wheel and the second guide wheel. When providing the film tape to the film tape cutting device, the buffer wheel moves along the track toward the first guide wheel and the second guide wheel to release the buffered film tape.

2. The membrane feeding device according to claim 1, characterized in that: The lower pressing plate extends toward the rear side of the clamping mechanism to form an extension portion that exceeds the upper pressing plate, and at least two notch grooves recessed toward the front side are arranged at intervals along the edge of the extension portion facing the rear side; The film tape pulling device comprises a mounting frame and at least two clamping mechanisms mounted on the mounting frame, each of the clamping mechanisms corresponding to one of the notch grooves of the film tape cutting device; When the film tape is laid on the lower pressing plate of the clamping mechanism and extends to the extending portion, each clamping mechanism of the film tape traction device clamps the film tape in the corresponding notch groove and pulls the film tape through the cutting mechanism.

3. The membrane feeding device according to claim 1, characterized in that: A flexible layer is arranged on the bottom surface of the upper pressing plate.

4. The membrane feeding device according to claim 1, characterized in that: The cutting mechanism comprises a lower cutting knife and a lower driving mechanism for driving the lower cutting knife to move up and down; The cutting mechanism further comprises an upper cutting knife located above the lower cutting knife and an upper driving mechanism for driving the upper cutting knife to move up and down relative to the lower cutting knife; Wherein, a limiting component is arranged on the frame, and the limiting component is arranged to limit the upward movement of the lower cutter to prevent the lower cutter from exceeding the upper surface of the lower pressing plate.

5. The membrane feeding device according to claim 1, characterized in that: The membrane carrier device includes a carrier plate capable of adsorbing the membrane, and the carrier plate is provided with at least one cutting knife that moves along the width direction of the carried membrane, and the cutting knife divides the entire membrane on the carrier plate into at least two membranes; wherein the carrier plate is provided with a strip groove for the cutting knife to move.

6. The membrane feeding device according to claim 5, characterized in that: The film carrier device also includes a moving mechanism for driving the carrier plate to move between the film tape cutting device and the film adsorption device.

7. The membrane feeding device according to claim 5, characterized in that: The film adsorption device comprises at least two adsorption components, each of which is used to adsorb one of the divided films on the carrier plate; The membrane adsorption device further comprises a driving mechanism for driving two adjacent adsorption components to move away from each other.

8. The membrane feeding device according to claim 1, characterized in that: The membrane adsorption device includes an adsorption component for adsorbing the membrane on the membrane supporting device, and the adsorption component includes an adsorption plate with adsorption holes arranged at the bottom and an electric heating rod above the adsorption plate for heating the adsorption plate.

9. The membrane feeding device according to claim 8, characterized in that: A flexible layer is arranged below the adsorption plate.

10. The membrane feeding device according to any one of claims 1 to 9, characterized in that: The film tape cutting device, the film tape pulling device, and the film sheet adsorption device are respectively arranged to be able to be lifted and lowered relative to the film sheet carrying device.

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