Composite film stripping and recycling device

Abstract

The embodiment of the utility model discloses a composite film stripping and recycling device. The device comprises an unwinding mechanism which is configured to release a composite film material roll with at least two film layers so as to form a composite film belt for conveying; the stripping mechanism is arranged at the downstream of the unwinding mechanism along the conveying direction of the composite film belt, and the stripping mechanism is configured to separate the at least two film layers from each other so as to divide the passing composite film belt into at least two base material film belts and convey the at least two base material film belts; and the winding mechanism is arranged on the downstream of the stripping mechanism in the conveying direction of the at least two base material film belts, the winding mechanism comprises at least two sets of winding assemblies, and each set of winding assembly is configured to wind one base material film belt in the at least two base material film belts. According to the embodiment of the invention, the technical problem of how to peel and recycle the multi-layer composite film so as to reduce the cost is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module production, and in particular to a composite film stripping and recycling device. BACKGROUND

[0002] Currently, the structure of the photovoltaic reflective film is a multi-layer composite film, mainly composed of a reflective base film layer and an EVA layer. The prior art adopts a film coating process when combining the reflective base film layer and the EVA layer, and the reflective base film layer and the EVA layer are compounded together by an EVA special extrusion compound machine.

[0003] However, in the process of combining the reflective base film layer and the EVA layer by the film coating process, a large amount of reflective base film and EVA is consumed to debug the equipment in order to make the reflective film product meet the technical requirements, and these debugging materials cannot be recycled and processed. At the same time, air bubbles are inevitably generated between the reflective base film layer and the EVA layer during the film coating, or the thickness of the EVA layer on the film coating cannot meet the requirements, resulting in unqualified products that cannot be reworked and can only be scrapped, causing waste and increasing costs. CONTENT OF THE INVENTION

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a composite film stripping and recycling device and method to solve the technical problem of how to strip and recycle the multi-layer composite film to reduce costs.

[0005] The present application provides a composite film stripping and recycling device, comprising:

[0006] A unwinding mechanism configured to release a composite film roll having at least two film layers to form a composite film belt for conveying;

[0007] A stripping mechanism arranged downstream of the unwinding mechanism along the conveying direction of the composite film belt, the stripping mechanism being configured to separate the at least two film layers from each other to divide the passing composite film belt into at least two base material film belts, and to convey the at least two base material film belts;

[0008] A winding mechanism arranged downstream of the stripping mechanism along the conveying direction of the at least two base material film belts, the winding mechanism comprising at least two groups of winding assemblies, each group of winding assemblies being configured to wind one of the at least two base material film belts.

[0009] In one embodiment of the above-mentioned composite film stripping and recycling device,

[0010] The unwinding mechanism comprises an unwinding frame and an air expansion shaft, the air expansion shaft being installed on the unwinding frame, and the air expansion shaft being configured to fix the composite film roll at a unwinding position of the unwinding frame and release the composite film roll by rotating.

[0011] In one embodiment of the composite film stripping and recycling device described above,

[0012] The unwinding mechanism further comprises a feeding assembly, the feeding assembly comprising a driving member and a lifting member, the driving member being configured to drive the lifting member to rotate so as to transport the composite film roll to be recycled to the unwinding position.

[0013] In one embodiment of the composite film stripping and recycling device described above,

[0014] The unwinding mechanism further comprises a deviation rectifying assembly, the deviation rectifying assembly comprising a deviation rectifying sensor and a guide assembly, the deviation rectifying sensor being arranged at the discharge end of the unwinding mechanism and being configured to detect the deviation position of the composite film strip between the discharge end of the unwinding mechanism and the receiving end of the stripping mechanism; the unwinding frame is mounted on the guide assembly, and the guide assembly is configured to drive the unwinding frame to move according to the deviation position detected by the deviation rectifying sensor, so that the discharge end of the unwinding mechanism and the receiving end of the stripping mechanism are in the same vertical plane.

[0015] In one embodiment of the composite film stripping and recycling device described above,

[0016] The stripping mechanism comprises at least two groups of stripping assemblies, each group of stripping assemblies comprising a stripping roller and a stripping guide roller, the stripping roller being configured to receive one of the at least two separated substrate film strips and be pulled to the corresponding stripping guide roller, the stripping guide roller being configured to guide the substrate film strip to the corresponding winding assembly.

[0017] In one embodiment of the composite film stripping and recycling device described above,

[0018] The stripping assembly comprises a first stripping assembly and a second stripping assembly, the first stripping assembly and the second stripping assembly being arranged in parallel and symmetrically, and the guide directions of the stripping guide rollers of the first stripping assembly and the second stripping assembly being opposite.

[0019] In one embodiment of the composite film stripping and recycling device described above,

[0020] The stripping mechanism further comprises two oppositely arranged stripping pressure rollers, the stripping pressure rollers being arranged at the front sequence position of the stripping roller, and the two stripping pressure rollers being configured to flatten the composite film strip passing therebetween, the distance between the two stripping pressure rollers being equal to the thickness of the composite film strip.

[0021] In one embodiment of the composite film stripping and recycling device described above,

[0022] The stripping mechanism further comprises a pulling mechanism, the pulling mechanism being configured to transport the composite film strip from the unwinding mechanism to the stripping mechanism.

[0023] In one embodiment of the composite film stripping and recycling device described above,

[0024] The winding mechanism comprises a winding frame, and the at least two groups of winding assemblies are installed on the winding frame. Each group of the winding assemblies comprises a winding shaft and a winding pressure roller. The winding shaft is configured to wind a strip of base material film, and the winding pressure roller is configured to apply pressure to the strip of base material film entering the corresponding winding shaft to make the strip of base material film enter the winding shaft smoothly.

[0025] The one or more embodiments of the present application described above have at least one or more of the following beneficial effects:

[0026] In the implementation of the technical solutions of the present application, through the cooperation of the unwinding mechanism, the stripping mechanism and the winding mechanism, the composite film strip is separated into the original base material film after passing through the stripping mechanism, and automatic classification and recycling are realized through the corresponding winding mechanism. The recycled base material film can be reused, thereby greatly reducing the material cost.

[0027] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0028] The disclosure of the present application will become more readily apparent from the following description with reference to the accompanying drawings. As those skilled in the art will readily appreciate, the drawings are not intended to limit the scope of this application in any way. Furthermore, like reference numerals are intended to represent similar and / or analogous components throughout the drawings.

[0029] Figure 1 is a structural schematic diagram of a composite film stripping and recycling device according to one embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the main steps of a composite film stripping and recycling method according to one embodiment of the present application. DETAILED DESCRIPTION

[0031] Some embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.

[0032] As described in the background, in the process of combining the existing reflective base film layer and the EVA layer by using the lamination process, in order to make the reflective film product meet the technical requirements, a large amount of reflective base film and EVA need to be consumed for debugging equipment, and these debugging materials cannot be recycled; at the same time, bubbles are inevitably generated between the reflective base film layer and the EVA layer during lamination, or the thickness of the EVA layer on the lamination cannot meet the requirements, resulting in unqualified products, which cannot be reworked, but only can be scrapped, causing waste and increasing cost. Based on this, the application provides a film stripping and recycling device to solve the above problems.

[0033] Referring to the drawings Figure 1 , Figure 1 is a structural schematic diagram of a composite film stripping and recycling device according to an embodiment of the application. As shown in Figure 1 , in one or more embodiments, the composite film stripping and recycling device of the application comprises: an unwinding mechanism 100 configured to release a composite film roll 400 having at least two film layers to form a composite film strip 410 for conveying; a stripping mechanism 200 arranged downstream of the unwinding mechanism 100 along the conveying direction of the composite film strip 410, the stripping mechanism 200 being configured to separate the at least two film layers from each other to divide the passing composite film strip 410 into at least two base material film strips, and to convey the at least two base material film strips; and a winding mechanism 300 arranged downstream of the stripping mechanism 200 along the conveying direction of the at least two base material film strips, the winding mechanism 300 comprising at least two groups of winding assemblies, each group of winding assemblies being configured to wind one of the at least two base material film strips.

[0034] Specifically, in the present application, the composite film can be a reflective film, which includes a base film layer and an EVA layer. Therefore, the base material film strips after the separation of the composite film strip 410 include a base film strip 411 formed by the base film layer and an EVA film strip 412 formed by the EVA layer.

[0035] An optional working process of the composite film stripping and recycling device of the present embodiment is as follows: the unqualified reflective film roll is fixedly placed on the unwinding mechanism 100, the unwinding mechanism 100 can release the reflective film roll to form a film strip of the reflective film, the film strip of the reflective film passes through the stripping mechanism 200 and is divided into a base film strip 411 and an EVA film strip 412 at the stripping mechanism 200, and finally the two film strips are fixed on the corresponding winding assemblies, respectively, and are wound by the winding assemblies. During the operation process, power can be provided by the winding assemblies to drive the film strips to move in the winding, so that the unwinding mechanism 100 releases the roll, and further, the power provided by each winding assembly needs to be consistent, so that the film strips can move smoothly in each mechanism.

[0036] The composite film stripping and recycling device provided by the embodiment of the application can separate the composite film strip into the original base material film strip after the composite film strip passes through the stripping mechanism 200 and realize automatic classification and recycling through the corresponding winding mechanism. The recycled base material film strip can be reused, thereby greatly reducing the material cost.

[0037] In one embodiment, as shown in Figure 1 The unwinding mechanism 100 includes an unwinding frame 101 and an air inflation shaft 102. The air inflation shaft 102 is installed on the unwinding frame 101. The air inflation shaft 102 is configured to fix the composite film roll 400 at the unwinding position of the unwinding frame 101 and release the composite film roll 400 by rotating. During use, the composite film roll 400 is first placed at the unwinding position, the air inflation shaft 102 serves as an unwinding part, the unwinding position is the installation position of the air inflation shaft 102, the composite film roll 400 is installed on the air inflation shaft 102, the air inflation shaft 102 is inflated, the surface of the air inflation shaft 102 can protrude to clamp the core of the composite film roll 400 after high-pressure inflation, thereby fixing the composite film roll 400. After the air inflation shaft 102 is deflated, the surface part thereof quickly retracts into the shaft, and the roll can be removed.

[0038] In one possible embodiment, as shown in Figure 1 The unwinding mechanism 100 further includes a feeding assembly. The feeding assembly includes a driving part 103 and a lifting part 104. The driving part 103 is configured to drive the lifting part 104 to rotate, so that the lifting part 104 transports the composite film roll 400 to be recycled to the unwinding position. Specifically, the driving part 103 can be a pneumatic cylinder, and the lifting part 104 can be a feeding lifting arm. The driving end of the pneumatic cylinder is connected to the feeding lifting arm, so that the feeding lifting arm can rotate around the fixed shaft (the circular part in the lifting part 104 shown in the figure). During feeding, the driving end of the pneumatic cylinder is extended to push down the feeding lifting arm (toward the ground), place the composite film roll 400 on the feeding lifting arm, retract the driving shaft of the pneumatic cylinder, and lift the feeding lifting arm toward the unwinding position. After reaching the unwinding position, the composite film roll 400 is fixed by the air inflation shaft 102, and the feeding is completed.

[0039] In one possible embodiment, some auxiliary rollers can be placed on the unwinding frame 101 according to actual needs to support the film strip, guide the moving direction of the film strip, or make the film strip fully and evenly expand during movement. Figure 1The support roller 107, the first guide roller 108 and the second guide roller 109 in the unwinding mechanism 100, the support roller 107 is mainly used to support the composite film strip 410 coming out from the composite film roll 400, the film strip passes through the first guide roller 108 towards the ground direction and then passes through the second guide roller 109 to guide the film strip to output in the horizontal direction parallel to the ground, a third guide roller 110 corresponding to the second guide roller 109 and having the same radius is arranged at the feeding end of the stripping mechanism 200, the third guide roller 110 is used to butt joint the film strip from the unwinding mechanism 100 and guide the film strip to the stripping mechanism 200, in order to ensure the smooth movement of the film strip and prevent the film strip from sliding out when the film strip passes through the second guide roller 109, the discharge end of the second guide roller 109 and the receiving end of the third guide roller 110 need to be in the same horizontal position, and the second guide roller 109 and the third guide roller 110 can be aligned in the vertical plane. It should be understood that the present example is not a limitation on the specific number and position of the guide rollers, support rollers and other rollers, and in actual use, reasonable settings can be made according to the space requirements and the specific feeding position of the stripping mechanism 200, as long as the smooth movement of the film strip between the unwinding mechanism 100 and the stripping mechanism 200 is ensured.

[0040] Further, in order to ensure the smooth movement of the film strip between the unwinding mechanism 100 and the stripping mechanism 200, in one possible embodiment, as shown in FIG. 2, the unwinding mechanism 100 and the stripping mechanism 200 are arranged in the same vertical plane, and the film strip passes through the second guide roller 109 and the third guide roller 110 in the same vertical plane. Figure 1As shown, the unwinding mechanism 100 further comprises a deviation rectifying assembly, which comprises a deviation rectifying sensor 105 and a guide assembly. The deviation rectifying sensor 105 is arranged at the discharge end of the unwinding mechanism 100 and is configured to detect the deviation position of the composite film strip 410 between the discharge end of the unwinding mechanism 100 and the receiving end of the stripping mechanism 200. The unwinding frame 101 is mounted on the guide assembly, which is configured to drive the unwinding frame 101 to move according to the deviation position detected by the deviation rectifying sensor 105, so that the discharge end of the unwinding mechanism 100 and the receiving end of the stripping mechanism 200 are in the same vertical plane. Specifically, the deviation rectifying sensor 105 can be arranged near the position close to the feeding end of the second guide roller 109. When the composite film strip 410 deviates between the discharge end of the unwinding mechanism 100 and the receiving end of the stripping mechanism 200, i.e., the second guide roller 109 and the third guide roller 110 are not in the same vertical plane, the deviation rectifying sensor 105 can detect the deviation of the film strip. The guide assembly in the present application can include a base 1061, a slide rail, and guide wheels 1062 mounted on both sides of the bottom of the unwinding frame 101. The arrangement direction of the slide rail is perpendicular to the unwinding direction of the unwinding mechanism 100, i.e., perpendicular to the vertical plane in which the second guide roller 109 and the third guide roller 110 are located. The guide wheels 1062 are slidingly mounted in the slide rail. The guide wheels 1062 can drive the unwinding frame 101 to move forward and backward along the direction of the slide rail. When the film strip deviates between the discharge end of the unwinding mechanism 100 and the receiving end of the stripping mechanism 200, the deviation rectifying sensor 105 can detect the deviation angle or the deviation distance. According to the detection signal, the control system of the unwinding mechanism controls the guide wheels 1062 to drive the unwinding frame 101 to move forward and backward, so that the second guide roller 109 and the third guide roller 110 are in the same vertical plane, i.e., the second guide roller 109 and the third guide roller 110 are aligned in the vertical plane. During the running process of the film strip, transverse slip does not occur.

[0041] In one embodiment, as shown in Figure 1 The stripping mechanism 200 comprises at least two groups of stripping assemblies. Each group of stripping assemblies comprises a stripping roller 201 and a stripping guide roller 202. The stripping roller 201 is configured to receive one of the at least two separated substrate film strips and pull it to the corresponding stripping guide roller 202. The stripping guide roller 202 is configured to guide the substrate film strip to the corresponding winding assembly. Specifically, before the composite film strip 410 is initially installed into the stripping roller 201, each film layer of the composite film strip 410 can be separated by instruments or manually, forming different substrate film strips. Each substrate film strip corresponds to a stripping roller 201 and passes through a stripping guide roller 202 to guide a winding assembly for winding.

[0042] In one possible embodiment, as shown in Figure 1As shown, the stripping assembly includes a first stripping assembly and a second stripping assembly, the first stripping assembly and the second stripping assembly are arranged in parallel and symmetrically, and the guide directions of the stripping guide rollers 202 of the first stripping assembly and the second stripping assembly are opposite. Specifically, in the present application, the composite film strip 410 is a reflective film strip, and after the reflective film strip is stripped and separated, there are two base film strips, which are a base film strip 411 and an EVA film strip 412. The base film strip 411 can be separated by the first stripping assembly arranged above and wound to the winding assembly above. The EVA film strip can be pulled to the winding assembly below by the second stripping assembly arranged below the first stripping assembly. Since the base film strip 411 and the EVA film strip 412 are transported by separating the same film strip, in order to ensure the smooth running of the entire film strip and the smooth winding, the first stripping assembly and the second stripping assembly need to be parallel and symmetric to each other, so that the winding speed and the film strip running speed are consistent. In the present application, only the initial section of the reflective film strip is mechanically or manually stripped and installed on the corresponding stripping assembly and winding assembly. The remaining reflective film roll is automatically separated after running to the stripping mechanism 200, and is automatically wound to the winding assembly, thereby effectively improving the stripping efficiency and recycling efficiency of the reflective film and saving labor costs.

[0043] In one possible implementation, as shown in Figure 1 The stripping mechanism 200 further includes two oppositely arranged stripping pressure rollers 203 arranged in front of the stripping rollers 201. The two stripping pressure rollers 203 are configured to flatten the composite film strip 410 passing therebetween. The distance between the two stripping pressure rollers 203 is equal to the thickness of the composite film strip 410. The reflective film is flattened before being stripped, so that the stress is uniform, which plays a role in flattening and fixing, so as to facilitate the subsequent stripping roller 201 to automatically separate the subsequent film strip. Further, the discharge positions of the two oppositely arranged stripping pressure rollers 203 correspond to the center symmetry line of the two stripping rollers 201, which is beneficial to improve the uniformity of flattening and stress, so that the separated base film strip is uniformly stressed, which is more beneficial to the automatic separation of the film strip.

[0044] In one possible implementation, as shown in Figure 1 The stripping mechanism 200 further includes a pulling mechanism 204 configured to transport the composite film strip 410 from the unwinding mechanism 100 to the stripping mechanism 200. Specifically, the pulling mechanism 204 can be a pulling shaft, which is powered to rotate and drive the composite film strip 410 to move from the unwinding mechanism 100 to the stripping mechanism 200, and specifically to the two stripping pressure rollers 203 for flattening.

[0045] In one possible implementation, as shown in Figure 1As shown, the winding mechanism 300 includes a winding frame 301, at least two sets of winding assemblies are installed on the winding frame 301, each set of winding assemblies includes a winding shaft 302 and a winding pressure roller 303, the winding shaft 302 is configured to wind a strip of base material film, and the winding pressure roller 303 is configured to apply pressure to the base material film entering the corresponding winding shaft 302 to make the base material film enter the winding shaft 302 flat. Specifically, the winding pressure roller 303 is arranged at the feeding position of the corresponding winding shaft 302, and can apply pressure to the base material film during winding to avoid wrinkles during winding. During use, for example Figure 1 As shown, the base film strip 411 is pulled to the upper winding shaft 302 after passing through the upper peeling guide roller 202. In order to make the base film strip 411 flat between the peeling guide roller 202 and the winding shaft 302, a winding shaft 302 is installed between the peeling guide roller 202 and the winding shaft 302 and is biased upward to lift the base film strip 411 upward, so that the base film strip 411 receives upward pressure, which can avoid wrinkles during winding. The principle of applying pressure to the EVA film strip 412 in the lower winding assembly is the same, and the direction is opposite.

[0046] In one possible implementation, the composite film peeling and recycling device further includes a control system, the control system includes a control panel and a controller, the controller is configured to control the running speed of the pulling shaft and / or the winding shaft and / or control the tension of the winding and unwinding shaft according to the parameters input by the control panel, the parameters include the initial diameter, the film thickness, the running linear speed, the initial tension and the taper of the winding and unwinding, etc. In order to improve the smooth separation and winding of the film strip and the stable operation of the whole device, the controller is configured to automatically adjust the corresponding winding and unwinding linear speed and angular speed, and the winding and unwinding speed can be controlled in real time through the panel during operation. Further, after the installation of the composite film roll 400 is completed, the diameter and film thickness are measured, the initial parameters of the roll are input through the control panel, and the controller is configured to calculate the real-time radius during operation according to the initial diameter, the film thickness and the running linear speed, and to match the appropriate real-time tension of the winding and unwinding according to the change of the real-time radius. The larger the diameter, the greater the tension required, and the smaller the diameter, the smaller the tension required. Therefore, the winding shaft needs to increase the tension according to the change of the real-time radius during winding to control the tightness of the winding, and the unwinding shaft of the unwinding mechanism needs to gradually reduce the tension during operation. At the same time, the change of the tension will also affect the friction degree of the material when passing through the roller, and affect the performance of the material itself. Therefore, appropriate tension can effectively reduce the loss of the material during movement.

[0047] Reference Figure 1Another optional working process of the composite film stripping and recycling device of the embodiment is as follows: installation: the reflective film roll to be recycled is moved to the unwinding position by the cylinder-driven feeding lifting arm, the reflective film roll is fixed by inflation of the air inflation shaft 102, one end of the roll is pulled out and sequentially passes through the supporting roller 107, the first guide roller 108, the second guide roller 109, the third guide roller 110, the traction shaft and some guide rollers arranged additionally, enters the stripping pressure roller 203, the EVA layer and the reflective base film layer of the initial section of the reflective film tape are stripped manually, after stripping, the base film tape 411 is wound around the upper stripping roller 201 and passes through the corresponding stripping guide roller 202, and the initial end of the base film tape 411 is fixed on the paper tube of the upper winding shaft 302 by the adhesive tape or double-sided adhesive tape and other fixing means, and the EVA film tape 412 is also wound around the lower stripping roller and stripping guide roller and fixed on the paper tube of the lower winding shaft 302, finally, the winding pressure roller is installed between the corresponding stripping guide roller 202 and the winding shaft 302, and pressure is applied to each base material film tape to make it wind smoothly.

[0048] Use: the diameter of the reflective film roll on the unwinding position is measured, and the thickness of the reflective film is measured, the initial operating parameters such as speed, winding and unwinding tension and taper of the traction shaft and the winding shaft 302 are set according to the diameter and thickness of the roll, the winding is started, mainly driven by the traction shaft, and the winding shaft 302 assists to provide winding power, if necessary, the winding shaft 302 can independently provide the whole power, and the film tape is moved when rotating, the reflective film tape is separated and pulled apart by the corresponding stripping roller 201 after passing through the two stripping pressure rollers 203, the automatic base material film stripping is realized, and then the corresponding stripping guide roller 202 pulls the reflective film tape to the corresponding winding shaft 302 for winding.

[0049] During the installation and use, the deviation sensor 105 is arranged at the unwinding position of the unwinding mechanism 100, the guide wheel can drive the whole unwinding frame 101 to move according to the relative deviation position of the film tape sensed by the deviation sensor 105, so that the reflective film tape does not appear to slide transversely when it is unwound from the unwinding end, and the specific alignment requirements and process are as described above, and repeated descriptions are omitted.

[0050] Further, the application provides a composite film stripping and recycling method, which comprises the following steps:

[0051] The unqualified composite film is subjected to film layer stripping and recycling based on the composite film stripping and recycling device, and at least two kinds of base materials after separation are obtained.

[0052] The at least two kinds of base materials are recycled and utilized according to their corresponding properties.

[0053] Specifically, the unqualified composite film refers to the unqualified product after compounding, such as insufficient bonding force, abnormal EVA thickness after compounding, bubbles after lamination, or abnormal EVA formula, etc. The unqualified composite film is separated by the composite film stripping and recycling device.

[0054] In one embodiment, with reference to Figure 2 After the reflective film passes through the composite stripping and recycling device, the separated base film and EVA are obtained. The base film is detected by technical means for its performance, such as using a spectrophotometer to test whether the reflectivity and optical density of the base film meet the standard, or using a metallographic microscope to test whether the reflective layer structure of the base film of the reflective film is damaged, or using a tensile testing machine to test the mechanical properties of the material, such as elongation at break and tensile strength. According to the actual performance requirements, if the base film of the reflective film meets the product requirements, it can be reworked and the base film of the reflective film and the EVA are compounded again; if the base film of the reflective film can only meet the requirements of the debugging machine, it can be used for debugging the machine, thereby greatly reducing the cost; the separated EVA can be processed and then granulated by an EVA granulator, or directly processed to realize the purpose of reducing cost.

[0055] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0056] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0057] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A composite film peeling and recycling apparatus, characterized by comprising: The application relates to a composite film recycling device. The device comprises: a unwinding mechanism configured to release a composite film roll with at least two film layers to form a composite film belt for conveying; a stripping mechanism arranged downstream of the unwinding mechanism along the conveying direction of the composite film belt, the stripping mechanism being configured to separate the at least two film layers from each other to divide the passing composite film belt into at least two substrate film belts and convey the at least two substrate film belts; 2. The composite film peeling and recycling apparatus according to claim 1, characterized by a winding mechanism arranged downstream of the stripping mechanism along the conveying direction of the at least two substrate film belts, the winding mechanism comprising at least two sets of winding assemblies, each set of the winding assemblies being configured to wind one of the at least two substrate film belts.

3. The composite film peeling and recycling apparatus according to claim 2, characterized by The unwinding mechanism comprises a unwinding frame and an air inflation shaft mounted on the unwinding frame, the air inflation shaft being configured to fix the composite film roll at a unwinding position of the unwinding frame and release the composite film roll by rotating.

4. The composite film peeling and recycling apparatus according to claim 2, characterized by The unwinding mechanism further comprises a feeding assembly, the feeding assembly comprising a driving member and a lifting member, the driving member being configured to drive the lifting member to rotate so that the lifting member transports the composite film roll to be recycled to the unwinding position.

5. The composite film peeling and recycling apparatus according to claim 1, characterized by The unwinding mechanism further comprises a deviation rectifying assembly, the deviation rectifying assembly comprising a deviation rectifying inductor and a guide assembly, the deviation rectifying inductor being arranged at a discharge end of the unwinding mechanism and being configured to detect the deviation position of the composite film belt between the discharge end of the unwinding mechanism and a receiving end of the stripping mechanism; the unwinding frame being mounted on the guide assembly, the guide assembly being configured to drive the unwinding frame to move according to the deviation position detected by the deviation rectifying inductor so that the discharge end of the unwinding mechanism and the receiving end of the stripping mechanism are in the same vertical level.

6. The composite film peeling and recycling apparatus according to claim 5, wherein The stripping mechanism comprises at least two sets of stripping assemblies, each set of the stripping assemblies comprising a stripping roller and a stripping guide roller, the stripping roller being configured to receive one of the at least two substrate film belts after separation and be pulled to the corresponding stripping guide roller, the stripping guide roller being configured to guide the substrate film belt to the corresponding winding assembly.

7. The composite film peeling and recycling apparatus according to claim 5, wherein The stripping assemblies comprise a first stripping assembly and a second stripping assembly, the first stripping assembly and the second stripping assembly being arranged in parallel and symmetrically, the guide directions of the stripping guide rollers of the first stripping assembly and the second stripping assembly being opposite.

8. The composite film peeling and recycling apparatus according to any one of claims 1 to 7, characterized by The stripping mechanism further comprises two oppositely arranged stripping pressure rollers, the stripping pressure rollers being arranged at the front sequence position of the stripping rollers, the two stripping pressure rollers being configured to flatten the composite film belt passing therebetween, the distance between the two stripping pressure rollers being equal to the thickness of the composite film belt. The stripping mechanism further comprises a pulling mechanism, the pulling mechanism being configured to convey the composite film belt from the unwinding mechanism to the stripping mechanism.

9. The composite film peeling and recycling apparatus according to claim 1, characterized by The winding mechanism comprises a winding frame, at least two groups of winding assemblies are installed on the winding frame, each group of winding assemblies comprises a winding shaft and a winding pressure roller, the winding shaft is configured to wind a strip of base material film, and the winding pressure roller is configured to apply pressure to the base material film entering the corresponding winding shaft to make the base material film enter the winding shaft smoothly.

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