Unreeling device of solar EVA (Ethylene Vinyl Acetate) laying machine

Abstract

The utility model provides an unwinding device of a solar EVA (Ethylene Vinyl Acetate) laying machine and belongs to the field of crystalline solar cell processing. Comprising a discharging deviation rectifying mechanism, a rotary discharging mechanism, a traction mechanism, a tensioning mechanism and a hot melting mechanism, the rotary discharging mechanism, the traction mechanism, the tensioning mechanism and the hot melting mechanism are all arranged on the discharging deviation rectifying mechanism, the hot melting mechanism is arranged at the upper end of the rotary discharging mechanism, and the traction mechanism is arranged at the rear end of the hot melting mechanism. And the tensioning mechanism is arranged below the traction mechanism. Compared with the prior art, automatic connection can be carried out when a first roll of roll material is unwound and a second roll of roll material is unwound, continuous unwinding is guaranteed, deviation of a material film can be corrected when the second roll of EVA roll material is unwound and enters the next procedure, the laying efficiency of the laying machine is improved, and the automation degree of the laying machine is improved.

Description

Technical Field

[0001] The utility model belongs to the field of crystal solar cell processing, and more specifically, relates to an unwinding device for a solar EVA laying machine. Background Art

[0002] A crystal solar cell panel is a device that converts solar energy into electrical energy using the photovoltaic effect. Crystal solar cell panels, also known as photovoltaic solar cell panels, usually consist of multiple photovoltaic cells that absorb sunlight and convert it into direct current electrical energy. These panels can be installed on the roofs, ground, or other suitable areas of buildings for power generation or power supply. As an important means of clean energy generation, photovoltaic solar cell panels are receiving increasing attention and widespread application. Globally, governments and enterprises are investing in photovoltaic power generation projects to reduce dependence on traditional fossil fuels, reduce environmental pollution, and promote sustainable development.

[0003] During the process of crystal solar cell processing and production, it is usually necessary to unwind EVA and then lay it on the battery photovoltaic glass plate. The existing unwinding devices of EVA laying machines usually adopt the form of unwinding a single roll of EVA coil material. After one roll of EVA coil material is unwound, the second roll of EVA coil material is unwound. When using the existing unwinding device of a solar EVA laying machine for unwinding, since the first coil material and the second coil material are disconnected, during automated laying, it is necessary to connect them before continuing the operation. The existing unwinding device usually needs to stop the machine to connect the head of the coil material with the tail of the first coil material when unwinding the second coil material. Using the existing unwinding device, continuous production cannot be carried out, and there are also defects such as difficult coil alignment during the connection process. In view of this, the utility model provides an unwinding device for a solar EVA laying machine. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides an unwinding device for a solar EVA laying machine, which can automatically connect when the first coil material is unwound and the second coil material is unwound, ensure continuous unwinding, and can correct the deviation of the film when the second coil of EVA coil material is fed into the next process, improve the laying efficiency of the laying machine, and improve the automation level of the laying machine.

[0005] The utility model is realized through the following technical solutions:

[0006] An unwinding device for a solar EVA laying machine includes

[0007] a feeding deviation correction mechanism for correcting the deviation of the film when the second coil of EVA coil material is fed into the next process;

[0008] A rotating feeding mechanism is provided on the feeding deviation rectifying mechanism for driving the EVA coil to feed.

[0009] A hot melting mechanism is provided on the feeding deviation rectifying mechanism and at the upper end of the rotating feeding mechanism for fusing the joint of the second EVA coil and the tail of the first EVA coil.

[0010] A traction mechanism is provided on the feeding deviation rectifying mechanism and at the rear end of the hot melting mechanism for driving the fed EVA film to be transported.

[0011] A tensioning mechanism is provided on the feeding deviation rectifying mechanism and below the traction mechanism for tensioning and adjusting the EVA film.

[0012] As a preferred technical solution, the feeding deviation rectifying mechanism includes a base, a deviation rectifying actuator, a left side plate and a right side plate. The deviation rectifying actuator is arranged on the base. The left side plate and the right side plate are slidably connected to the base. The movable end of the deviation rectifying actuator is fixedly connected to the right side plate. The left side plate and the right side plate are connected by a support rod.

[0013] As a preferred technical solution, a scale is provided on the support rod.

[0014] As a preferred technical solution, the rotating feeding mechanism includes a feeding motor and a rotating assembly. The feeding motor is in transmission connection with the rotating assembly.

[0015] As a preferred technical solution, the traction mechanism includes a traction motor, a traction roller and a pressing roller. The traction motor is in transmission connection with the traction roller. The pressing roller is arranged above the traction roller.

[0016] As a preferred technical solution, width adjustment sliders, slide rails and width adjustment cylinders are respectively arranged on both sides of the pressing roller. The width adjustment sliders are fixedly connected to the pressing roller. The width adjustment sliders are slidably connected to the slide rails. The width adjustment cylinders are arranged on the slide rails. The movable end of the width adjustment cylinder is fixedly connected to the width adjustment slider.

[0017] As a preferred technical solution, the tensioning mechanism includes a rotating shaft, a swing arm, a first tensioning roller and a second tensioning roller. The swing arm is rotatably connected to the rotating shaft. The first tensioning roller and the second tensioning roller are arranged on the swing arm.

[0018] As a preferred technical solution, the hot melting mechanism includes a hot melting device, a pressing plate and a lifting device. The pressing plate is arranged above the hot melting device. The lifting devices are arranged on both sides of the pressing plate and are connected to the pressing plate.

[0019] Beneficial effects:

[0020] By arranging a feeding deviation correction mechanism, the rotary feeding mechanism, the traction mechanism, the tensioning mechanism and the hot melting mechanism are all arranged on the feeding deviation correction mechanism. The EVA coil is fed by the rotary feeding mechanism, the EVA film is traction-transmitted by the traction mechanism, and the EVA film is tension-adjusted by the tensioning mechanism. After the first roll of EVA coil is fed, when the second roll of EVA coil is loaded and fed, the joint of the second roll of EVA coil is aligned with the tail of the first roll of EVA coil. After alignment, it is fused by the hot melting mechanism, and when the second roll of EVA coil is fed into the next process, it is corrected by the feeding deviation correction mechanism to correct the deviation of the film. Through the above method, automatic connection can be realized when the first roll of coil is unrolled and the second roll of coil is unrolled, ensuring continuous unrolling without stopping, improving the feeding efficiency and the stability of product quality. Description of the drawings

[0021] Figure 1 It is a three-dimensional structure diagram of an unwinding device of a solar EVA laying machine;

[0022] Figure 2 It is a structure diagram of the feeding deviation correction mechanism;

[0023] Figure 3 It is a structure diagram of the rotary feeding mechanism;

[0024] Figure 4 It is a structure diagram of the traction mechanism;

[0025] Figure 5 It is a structure diagram of the tensioning mechanism;

[0026] Figure 6 It is a structure diagram of the hot melting mechanism.

[0027] Reference signs in the drawings:

[0028] 1. Feeding deviation correction mechanism; 11. Base; 12. Deviation correction actuator; 13. Left side plate; 14. Right side plate; 15. Support rod; 2. Rotary feeding mechanism; 21. Feeding motor; 22. Rotary assembly; 3. Traction mechanism; 31. Traction motor; 32. Traction roller; 33. Pressing roller; 34. Width adjustment cylinder; 35. Width adjustment slider; 36. Slide rail; 4. Tensioning mechanism; 41. Rotating shaft; 42. Swing arm; 43. First tensioning roller; 44. Second tensioning roller; 5. Hot melting mechanism; 51. Pressing plate; 52. Hot melting device; 53. Lifting device. Detailed implementation manners

[0029] To further disclose the technical solution of the present utility model, a clear and complete description of a rewinding device for a solar EVA laying machine will be given below with reference to the accompanying drawings.

[0030] It should be noted that the terms such as "inside", "middle", and "one" cited in this specification are only for the convenience of clear narration, rather than for limiting the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope of implementation of the present utility model. This is stated first.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0032] Embodiment:

[0033] Please refer to Figures 1 to 6 Specifically refer to the attached Figure 1 , the present utility model provides a rewinding device for a solar EVA laying machine, including a feeding deviation correction mechanism 1 for correcting the deviation of the film when the second roll of EVA coil is fed into the next process, a rotary feeding mechanism 2 for driving the EVA coil to feed, a hot melt mechanism 5 for fusing the joint of the second roll of EVA coil and the tail of the first roll of EVA coil, a traction mechanism 3 for driving the EVA film after feeding to be transmitted, and a tensioning mechanism 4 for tension adjustment of the EVA film. The rotary feeding mechanism 2, the traction mechanism 3, the tensioning mechanism 4, and the hot melt mechanism 5 are all arranged on the feeding deviation correction mechanism 1. The hot melt mechanism 5 is arranged at the upper end of the rotary feeding mechanism 2. The traction mechanism 3 is arranged at the rear end of the hot melt mechanism 5. The tensioning mechanism 4 is arranged below the traction mechanism 3.

[0034] During operation, by setting up a material unloading and correcting mechanism 1, and by setting the rotary unloading mechanism 2, the traction mechanism 3, the tensioning mechanism 4 and the hot melt mechanism 5 on the material unloading and correcting mechanism 1, the EVA coil is transmitted to the rotary unloading mechanism 2 through the lifting device for unloading the EVA coil. After the EVA coil passes through the hot melt mechanism 5, the EVA material film is pulled and transmitted by the traction mechanism 3, and the EVA material film is tensioned and adjusted by the tensioning mechanism 4, and finally connected to the next process; after the first roll of EVA coil is unloaded, when the second roll of EVA coil is loaded and unloaded, the joint of the second roll of EVA coil is aligned with the tail of the first roll of EVA coil, and after alignment, they are fused through the hot melt mechanism 5, and when the second roll of EVA coil is unloaded and enters the next process, the material unloading and correcting mechanism 1 is used to correct the deviation of the material film. It should be noted that after the EVA coil on the rotary unloading mechanism 2 is unloaded, the empty material roller can be removed and replaced with a new roll.

[0035] For details, please refer to the attached Figure 2 The unwinding and deflection-correcting mechanism 1 includes a base 11, a deflection-correcting actuator 12, a left side plate 13, and a right side plate 14. The deflection-correcting actuator 12 is mounted on the base 11. The left and right sides 13 and 14 are slidably connected to the base 11. The movable end of the deflection-correcting actuator 12 is fixedly connected to the right side plate 14. The left and right sides 13 and 14 are connected by a support rod 15. During operation, the PLC detects the deflection of the discharged film based on the sensor of the next process and feeds back a signal to the deflection-correcting actuator 12. The deflection-correcting actuator 12 then drives the right and left sides 14 and 13 to deflect, thereby correcting the deflection of the film. If the PLC detects that the second roll of EVA material is deflected to the left, the deflection-correcting actuator 12 drives the right and left sides 14 and 13 to the right as a whole, thus achieving deflection correction.

[0036] Specifically, the support rod 15 is provided with a scale, and the scale is provided to make the deviation correction more accurate.

[0037] For details, please refer to the attached Figure 3 The rotary unloading mechanism 2 includes a unloading motor 21 and a rotating assembly 22. The unloading motor 21 is in transmission connection with the rotating assembly 22. The unloading is achieved by driving the rotating assembly 22 through the unloading motor 21.

[0038] For details, please refer to the attached Figure 4 The traction mechanism 3 includes a traction motor 31, a traction roller 32 and a pressure roller 33. The traction motor 31 is transmission-connected to the traction roller 32. The pressure roller 33 is arranged above the traction roller 32. The traction motor 31 drives the traction roller 32 to transmit the EVA material film after unloading, and the pressure roller 33 is used to press it.

[0039] Specifically, width adjustment sliders 35, slide rails 36 and width adjustment cylinders 34 are respectively arranged on both sides of the pressing roller 33. The width adjustment slider 35 is fixedly connected to the pressing roller 33. The width adjustment slider 35 is slidably connected to the slide rail 36. The width adjustment cylinder 34 is arranged on the slide rail 36, and the movable end of the width adjustment cylinder 34 is fixedly connected to the width adjustment slider 35. By driving the width adjustment slider 35 to slide up and down on the slide rail 36 through the width adjustment cylinder 34, the distance between the pressing roller 33 and the traction roller 32 can be adjusted to achieve width adjustment.

[0040] Specifically, please refer to the attached Figure 5 , the tensioning mechanism 4 includes a rotating shaft 41, a swing arm 42, a first tensioning roller 43 and a second tensioning roller 44. The swing arm 42 is rotatably connected to the rotating shaft 41. The first tensioning roller 43 and the second tensioning roller 44 are arranged on the swing arm 42. By swinging the swing arm 42, the first tensioning roller 43 and the second tensioning roller 44 through the rotating shaft 41, the EVA film is tightened to achieve the tensioning action.

[0041] Specifically, please refer to the attached Figure 6 , the hot melting mechanism 5 includes a hot melting device 52, a pressing plate 51 and a lifting device 53. The pressing plate 51 is arranged above the hot melting device 52. The lifting device 53 is arranged on both sides of the pressing plate 51 and is connected to the pressing plate 51. After the joint of the second roll of EVA coil material is aligned with the tail of the first roll of EVA coil material, the pressing plate 51 is pressed on the hot melting device 52 through the lifting device 53, and then the hot melting device 52 is started to fuse the joint to achieve material change.

[0042] Through the above structure, the utility model can automatically connect when the first roll of coil material is unwound and the second roll of coil material is unwound, ensuring continuous unwinding without stopping, improving the feeding efficiency and the stability of product quality.

[0043] The utility model is not limited to the above embodiments. If various changes or deformations of the utility model do not depart from the spirit and scope of the utility model, and if these changes and deformations belong to the scope of the claims of the utility model and equivalent technologies, the utility model also includes these deformations and changes.

Claims

1. A unwinding device for a solar EVA laying machine, characterized in that: include The unwinding correction mechanism is used to correct the deviation of the film when the second roll of EVA material is unwound and enters the next process; A rotary unloading mechanism is provided on the unloading and deviation-correcting mechanism, and is used to drive the EVA coil to unload; A hot melt mechanism is provided on the material unwinding and correcting mechanism and at the upper end of the rotary unwinding mechanism, and is used to fuse the joint of the second roll of EVA material with the tail of the first roll of EVA material; A traction mechanism is provided on the unloading and correcting mechanism and at the rear end of the hot-melt mechanism, and is used to drive the unloaded EVA film for transmission; The tensioning mechanism is arranged on the material unwinding and deviation-correcting mechanism and below the traction mechanism, and is used for tensioning and adjusting the EVA material film.

2. The unwinding device of the solar EVA laying machine according to claim 1, characterized in that: The material discharge correction mechanism includes a base, a correction actuator, a left plate and a right plate. The correction actuator is arranged on the base. The left plate and the right plate are slidably connected to the base. The movable end of the correction actuator is fixedly connected to the right plate. The left plate and the right plate are connected by a support rod.

3. The unwinding device of the solar EVA laying machine according to claim 2, characterized in that: The support rod is provided with a scale.

4. The unwinding device of the solar EVA laying machine according to claim 1, characterized in that: The rotary discharge mechanism includes a discharge motor and a rotation assembly, and the discharge motor is transmission-connected to the rotation assembly.

5. The unwinding device of the solar EVA laying machine according to claim 1, characterized in that: The traction mechanism includes a traction motor, a traction roller and a pressure roller. The traction motor is in transmission connection with the traction roller, and the pressure roller is arranged above the traction roller.

6. The unwinding device of the solar EVA laying machine according to claim 5, characterized in that: A width adjustment slider, a slide rail and a width adjustment cylinder are respectively provided on both sides of the pressure roller. The width adjustment slider is fixedly connected to the pressure roller, and the width adjustment slider is slidably connected to the slide rail. The width adjustment cylinder is provided on the slide rail, and the movable end of the width adjustment cylinder is fixedly connected to the width adjustment slider.

7. The unwinding device of the solar EVA laying machine according to claim 1, characterized in that: The tensioning mechanism includes a rotating shaft, a swing arm, and a first tensioning roller and a second tensioning roller. The swing arm is rotatably connected to the rotating shaft, and the first tensioning roller and the second tensioning roller are arranged on the swing arm.

8. The unwinding device of the solar EVA laying machine according to claim 1, characterized in that: The hot melt mechanism includes a hot melt device, a pressing plate and a lifting device. The pressing plate is arranged above the hot melt device, and the lifting device is arranged on both sides of the pressing plate and connected to the pressing plate.

Images