Adhesive film heating equipment

Abstract

The utility model provides adhesive film heating equipment. The adhesive film heating equipment comprises a traction assembly, a plurality of heating assemblies, a heat dissipation assembly, a plurality of first temperature detection pieces and a control assembly. The traction assembly is configured to pull the adhesive film; the multiple heating assemblies are sequentially arranged in the traction direction of the adhesive film, each heating assembly comprises two heating devices, and the two heating devices of any heating assembly are arranged on the two opposite sides of the adhesive film correspondingly; the heat dissipation group is configured to dissipate heat of the heating devices of the plurality of heating assemblies; the plurality of first temperature detection pieces are arranged corresponding to the plurality of heating assemblies, and the first temperature detection pieces are configured to detect the temperature of a heating area between the two heating devices of the corresponding heating assemblies; the control assembly is in signal connection with the multiple first temperature detection pieces and used for collecting the temperature of each heating area, the control assembly is further in signal connection with the multiple heating assemblies, and the control assembly controls the heating state of the heating assemblies forming the heating areas based on the temperature of the heating areas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of adhesive film processing, in particular to an adhesive film heating device. BACKGROUND

[0002] In the heating process of adhesive film, single-side infrared heating is mostly used, and the local or one-side heating temperature of the adhesive film is insufficient, which can easily cause quality problems such as bubbles or wrinkles in the adhesive film. CONTENT OF THE INVENTION

[0003] The present application provides an adhesive film heating device to solve the problem of quality problems in the heating process of adhesive film in the known technology.

[0004] The present application provides an adhesive film heating device, comprising a traction assembly, a plurality of heating assemblies, a heat dissipation assembly, a plurality of first temperature detection members, and a control assembly; the traction assembly is configured to pull the adhesive film; the plurality of heating assemblies are sequentially arranged along the traction direction of the adhesive film, and each heating assembly comprises two heating devices, and the two heating devices of any one heating assembly are arranged on opposite sides of the adhesive film; the heat dissipation assembly is configured to dissipate heat from the heating devices of the plurality of heating assemblies; the plurality of first temperature detection members are arranged corresponding to the plurality of heating assemblies, and the first temperature detection member is configured to detect the temperature of the heating area between the two heating devices of the corresponding heating assembly; the control assembly is signal connected to the plurality of first temperature detection members for collecting the temperature of each heating area, and the control assembly is also signal connected to the plurality of heating assemblies, and based on the temperature of the heating area, the control assembly controls the heating state of the heating assembly forming the heating area.

[0005] In a possible implementation, the control assembly is pre-set with a first temperature threshold, and the control assembly is configured to compare the first temperature signal of the heating area detected by the first temperature detection member with the first temperature threshold;

[0006] Based on the comparison result, the control assembly controls the heating power of the two heating devices of the heating assembly forming the heating area.

[0007] In a possible implementation, the heating temperatures of the two heating devices of the same heating assembly are the same.

[0008] In a possible implementation, the heat dissipation assembly comprises a plurality of heat dissipation members, and each heating device in the plurality of heating assemblies is provided with a corresponding heat dissipation member, and the heat dissipation side of the heat dissipation member is arranged away from the adhesive film on the side of the heating device.

[0009] In a possible implementation, the film heating device further comprises a plurality of second temperature detecting members, each of the heating assemblies is provided with a corresponding second temperature detecting member, and the second temperature detecting member is configured to detect the temperature of the corresponding heating device.

[0010] In a possible implementation, the control assembly is signal connected with the plurality of second temperature detecting members, and is configured to collect the temperature of each heating device. The control assembly is further signal connected with the plurality of heat dissipation members, and is configured to control the heat dissipation state of the heat dissipation member corresponding to the heating device based on the temperature of the heating device.

[0011] In a possible implementation, the control assembly is provided with a second temperature threshold value, and is configured to compare the second temperature signal of the heating device detected by the second temperature detecting member with the second temperature threshold value.

[0012] Based on the comparison result, the control assembly controls the heat dissipation power of the heat dissipation member corresponding to the heating device.

[0013] In a possible implementation, the film heating device further comprises a plurality of power supply assemblies, and the plurality of power supply assemblies are provided corresponding to the plurality of heating assemblies. The power supply assembly is configured to supply power to two heating devices corresponding to the power supply assembly through a power supply line, and the power supply line is provided with a fuse.

[0014] In a possible implementation, the film heating device further comprises a mounting assembly, and the mounting assembly comprises a first mounting member and a second mounting member. The first mounting member and the second mounting member are provided in a spaced manner, and the film moves between the first mounting member and the second mounting member.

[0015] The heating devices of the plurality of heating assemblies located on the same side of the film are mounted on the first mounting member, and another heating device of the plurality of heating assemblies located on the other side of the film is mounted on the second mounting member.

[0016] In a possible implementation, the mounting assembly further comprises a distance adjusting mechanism, and the distance adjusting mechanism is configured to adjust the distance between the first mounting member and the second mounting member.

[0017] The adhesive film heating device of the present application can heat the adhesive film from both sides by setting multiple heating assemblies, each of which is composed of two heating devices arranged at intervals, to ensure uniform heating of the adhesive film from both sides. In addition, the temperature of the heating area formed by each heating assembly can be detected in real time by the first temperature detection member, and the detected temperature signal is uploaded to the control assembly. The control assembly then adjusts the heating state of the corresponding heating assembly according to the current temperature of each heating area to ensure that the temperature of the adhesive film in different heating areas remains approximately the same, thereby ensuring uniform heating of the adhesive film and preventing quality problems. At the same time, the present application sets a heat dissipation assembly to dissipate heat from the heating devices of multiple heating assemblies, thereby avoiding overheating of the heating devices and other problems such as equipment aging, and improving the service life of the adhesive film heating device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic diagram of the adhesive film heating device of the present application in an embodiment.

[0019] Figure 2 The control schematic diagram of the adhesive film heating device of the present application in an embodiment.

[0020] Figure 3 The structure schematic diagram of the mounting assembly of the adhesive film heating device of the present application in an embodiment.

[0021] Figure 4 The structure schematic diagram of the mounting assembly of the adhesive film heating device of the present application in another view of an embodiment.

[0022] Main element symbol explanation: 100, adhesive film heating device; X, first direction; Y, second direction; 10, heating assembly; 11, heating device; 12, heating area; 20, adhesive film; 30, traction assembly; 40, heat dissipation assembly; 41, heat dissipation member; 50, control assembly; 60, first temperature detection member; 70, second temperature detection member; 80, mounting assembly; 81, first mounting member; 82, second mounting member; 83, spacing adjustment mechanism; 831, bottom plate; 832, screw slide; 8321, screw; 8322, screw block; 833, guide rail.

[0023] The following specific implementation will further illustrate the present application in conjunction with the above drawings. Specific implementation

[0024] The following description will refer to the accompanying drawings to provide a more complete picture of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. The same reference numerals denote the same or similar components.

[0025] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0026] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0027] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 2 As shown, this embodiment provides a film heating device 100, installed on a film production line, for heating the cured film 20 to improve its appearance quality and physical properties. Furthermore, the film heating device 100 can also be used for a secondary heating process of the semi-finished film 20. The film 20 can be an encapsulation film for photovoltaic modules, or a thin film 20 requiring high heating precision.

[0029] The film heating device 100 includes a traction component 30, multiple heating components 10, a heat dissipation component 40, multiple first temperature detection components 60, and a control component 50.

[0030] The traction assembly 30 is configured to traction the rubber film 20, and the traction assembly 30 can adopt a roller traction machine. Along the traction direction of the rubber film 20, a plurality of heating assemblies 10 are sequentially arranged, and the traction direction of the rubber film 20 is set as the first direction X. The heating assembly 10 includes two heating devices 11, and along the second direction Y, the two heating devices 11 of any one heating assembly 10 are arranged on opposite sides of the rubber film 20, that is, the heating region 12 formed between the two heating devices 11 of the rubber film 20 moves, and the second direction Y is perpendicular to the first direction X.

[0031] The heat dissipation assembly is configured to dissipate heat from the heating devices 11 of the plurality of heating assemblies 10. A plurality of first temperature detection members 60 are arranged corresponding to the plurality of heating assemblies 10, and the first temperature detection member 60 is configured to detect the temperature of the heating region 12 between the two heating devices 11 of the corresponding heating assembly 10. The control assembly 50 is signal connected to the plurality of first temperature detection members 60 for collecting the temperature of each heating region 12, and the control assembly 50 is also signal connected to the plurality of heating assemblies 10, and based on the temperature of the heating region 12, the control assembly 50 controls the heating state of the heating assembly 10 forming the heating region 12.

[0032] Thus, the rubber film heating equipment 100 of the present application can heat the rubber film 20 on both sides by arranging a plurality of heating assemblies 10, and each heating assembly 10 is composed of two heating devices 11 arranged at intervals, which can ensure uniform heating of both sides of the rubber film 20. In addition, the temperature of the heating region 12 formed by each heating assembly 10 can be detected in real time by the first temperature detection member 60, and the detected temperature signal can be uploaded to the control assembly 50, and the control assembly 50 can adjust the heating state of the corresponding heating assembly 10 according to the current temperature of each heating region 12, so as to ensure that the zone parts of the rubber film 20 located in different heating regions 12 maintain approximately the same temperature, thereby ensuring uniform heating of the rubber film 20 and avoiding quality problems. At the same time, the present application sets the heat dissipation assembly 40, which can dissipate heat from the heating devices 11 of the plurality of heating assemblies 10, thereby avoiding overheating of the heating devices 11 and other problems such as equipment aging, and improving the service life of the rubber film heating equipment 100.

[0033] Please refer to Figures 1 to 2 In an embodiment, along the first direction X, a plurality of heating assemblies 10 are arranged in sequence. The two heating devices 11 of the same heating assembly 10 are arranged in alignment along the second direction Y, and the heating temperature of the two heating devices 11 of the same heating assembly 10 is the same, so as to ensure that each zone part of the rubber film 20 is uniformly and continuously heated, and to ensure that the two sides of the rubber film 20 are uniformly heated.

[0034] Thus, the double-sided multi-temperature zone design avoids local temperature difference of the rubber film 20, reduces defects such as bubbles and wrinkles, and improves the qualified rate of finished products by 10%-15%.

[0035] In the embodiment, the number of heating assemblies 10 can be twelve, ten or other numbers, and the specific number can be selected according to actual needs.

[0036] The heating device 11 adopts an infrared heater, and a heating surface of the infrared heater faces the adhesive film 20. The infrared heater includes a shell and an infrared radiation structure arranged in the shell. An opening is arranged on a side of the shell close to the adhesive film 20, and infrared radiation energy generated by the infrared radiation structure is radiated to the adhesive film 20 from the opening. The heating temperature of the heating device 11 is normal temperature to 710°C, and the specific temperature can be adjusted according to the production process of the adhesive film 20. For example, the heating temperature of the EVA adhesive film 20 can be set to 300 to 500°C.

[0037] Further, the heating device 11 adopts an infrared emissivity ceramic coating, and the infrared thermal radiation efficiency is improved by more than 15%. The shell of the heating device 11 is internally integrated with metal heat-distributing fins, so as to ensure uniform temperature distribution of the heating device 11 and reduce uneven heating of the adhesive film 20 caused by temperature difference of the heating member.

[0038] In the embodiment, the control assembly 50 is pre-set with a first temperature threshold value, and the control assembly 50 is configured to compare the first temperature signal of the heating area 12 detected by the first temperature detection member 60 with the first temperature threshold value. Based on the comparison result, the control assembly 50 controls the heating power of the two heating devices 11 of the heating assembly 10 forming the heating area 12.

[0039] When the temperature value of the first temperature signal received by the control assembly 50 is greater than the first temperature threshold value, the control assembly 50 controls the two heating devices 11 forming the heating area 12 to reduce the heating power until the temperature value of the detected first temperature signal is approximately the same as the first temperature threshold value.

[0040] When the temperature value of the first temperature signal received by the control assembly 50 is less than the first temperature threshold value, the control assembly 50 controls the two heating devices 11 forming the heating area 12 to increase the heating power until the temperature value of the detected first temperature signal is approximately the same as the first temperature threshold value.

[0041] In addition, the adhesive film heating equipment 100 further includes an adhesive film 20 processing quality monitoring device, which can be a thickness gauge, a surface defect visual detector or an online infrared thermal imager. The adhesive film 20 processing quality monitoring device is used to monitor the surface quality of the adhesive film 20, and upload the monitored surface quality of the adhesive film 20 to the control assembly 50. The control assembly 50 controls the individual heating assembly 10 to be turned off or turned on according to the surface quality of the adhesive film 20, or adjusts the heating temperature of the corresponding heating area 12 of each heating assembly 10.

[0042] It is worth noting that the first temperature threshold value corresponding to the heating area 12 formed by each heating assembly 10 can be the same or set to different values based on the production requirements of the adhesive film 20.

[0043] In the embodiment, the adhesive film heating device 100 further comprises a plurality of power supply assemblies corresponding to the plurality of heating assemblies 10, and the power supply assemblies are configured to supply power to the two heating devices 11 of the corresponding power supply assembly through a power supply line, and a fuse is arranged on the power supply line to form an overheating feedback mechanism. If there is an abnormally high temperature or other problems, the fuse will automatically disconnect, thereby ensuring the safety of the equipment and personnel and eliminating the risk of equipment overload and high temperature.

[0044] In addition, the heating area 12 corresponding to each heating assembly 10 uses an independent temperature control device in cooperation with a thermocouple feedback mechanism, and the temperature control precision error is ≤±5℃, and the idle temperature zone can be closed as needed, which can reduce the energy consumption of the traditional device by 20%-30%.

[0045] In the embodiment, the power supply assembly can also be provided with a thermal relay (for monitoring the abnormal current of the heating element) and a power-off protection module. When the current is less than a preset threshold value, the power-off protection module can accurately determine the alarm area of the faulty heating device 11, identify the power failure of the partition heating device 11 in time and trigger the handling mechanism (such as local power failure, sound and light alarm). At the same time, a fault self-diagnosis system is provided, which can detect the working state of the heating device 11 and the first temperature detection member 60 in real time, automatically alarm and locate the fault point when abnormal, and reduce the risk of equipment downtime.

[0046] Please refer to Figures 1 to 2 In an embodiment, the heat dissipation assembly 40 comprises a plurality of heat dissipation members 41, and each heating device 11 in the plurality of heating assemblies 10 is provided with a corresponding heat dissipation member 41, and the heat dissipation side of the heat dissipation member 41 is arranged away from the adhesive film 20.

[0047] The adhesive film heating device 100 further comprises a plurality of second temperature detection members 70, and each heating device 11 in the plurality of heating assemblies 10 is provided with a corresponding second temperature detection member 70, and the second temperature detection member 70 is configured to detect the temperature of the corresponding heating device 11.

[0048] The heat dissipation member 41 is a heat dissipation fan, and the heat dissipation fan is arranged towards the shell of the corresponding heating device 11 to dissipate heat from the shell through the heat dissipation fan, thereby dissipating heat from the heating device 11 and avoiding overheating of the heating device 11. The shell of the heating device 11 can be made of stainless steel, which can improve the heat dissipation efficiency and prolong the service life of the shell of the heat dissipation device.

[0049] In the embodiment, the control assembly 50 is signal connected with the plurality of second temperature detecting members 70 for collecting the temperature of each heating device 11, and the control assembly 50 is also signal connected with the plurality of heat dissipating members 41. Based on the temperature of the heating device 11, the control assembly 50 controls the heat dissipation state of the heat dissipating member 41 corresponding to the heating device 11.

[0050] The control assembly 50 is preset with a second temperature threshold value, and the control assembly 50 is configured to compare the second temperature signal of the heating device 11 detected by the second temperature detecting member 70 with the second temperature threshold value. Based on the comparison result, the control assembly 50 controls the heat dissipation power of the heat dissipating member 41 corresponding to the heating device 11.

[0051] When the temperature value of the second temperature signal received by the control assembly 50 is greater than the second temperature threshold value, the control assembly 50 controls the heat dissipating member 41 corresponding to the heating device 11 to increase the heat dissipation power (for example, to increase the air volume or air speed), until the temperature value of the detected second temperature signal is approximately the same as the second temperature threshold value.

[0052] In this way, by adopting the stainless steel shell for the heating device 11 and cooperating with the heat dissipation fan design, the service life of the equipment is extended to 3-5 years, the automatic temperature control reduces the frequency of manual adjustment, and the labor cost and the risk of operation error are reduced.

[0053] Please combine Figure 3 and Figure 4 In an embodiment, the adhesive film heating equipment 100 further comprises a mounting assembly 80, the mounting assembly 80 comprises a first mounting member 81 and a second mounting member 82, the first mounting member 81 and the second mounting member 82 are arranged at intervals, and the adhesive film 20 moves between the first mounting member 81 and the second mounting member 82. The heating devices 11 of the plurality of heating assemblies 10 located on the same side of the adhesive film 20 are mounted on the first mounting member 81, and another heating device 11 of the plurality of heating assemblies 10 located on the other side of the adhesive film 20 is mounted on the second mounting member 82.

[0054] In the second direction Y, the first mounting member 81 and the second mounting member 82 are arranged at intervals, the first mounting member 81 and the second mounting member 82 can adopt a bracket structure, and the first mounting member 81 and the second mounting member 82 are arranged in the first direction X. The plurality of heating devices 11 located on one side of the adhesive film 20 are closely mounted on the first mounting member 81 in the first direction X, and the plurality of heating devices 11 located on the other side of the adhesive film 20 are closely mounted on the second mounting member 82 in the first direction X.

[0055] In the embodiment, the mounting assembly 80 further comprises a spacing adjustment mechanism 83, the spacing adjustment mechanism 83 is configured to adjust the spacing between the first mounting member 81 and the second mounting member 82.

[0056] The distance adjusting mechanism 83 comprises a bottom plate 831, a screw sliding table 832 and two guide rails 833. In the first direction X, the two guide rails 833 are arranged at intervals, and the guide rails 833 are mounted on the bottom plate 831 in the second direction Y. The screw sliding table 832 is located between the two guide rails 833, and the screw sliding table 832 is arranged in the second direction Y. The screw 8321 of the screw sliding table 832 adopts a two-section structure, the threads of the two-section structure of the screw 8321 are opposite in direction, and the two-section structure of the screw 8321 is provided with a screw block 8322 threadedly matched therewith. The first mounting piece 81 and the second mounting piece 82 are respectively connected to the two screw blocks 8322, so as to drive the first mounting piece 81 and the second mounting piece 82 to move close to or away from each other in the second direction Y through the two screw blocks 8322. In addition, the first mounting piece 81 and the second mounting piece 82 are in sliding fit with the two guide rails 833, so as to guide the first mounting piece 81 and the second mounting piece 82 to slide in the second direction Y through the two guide rails 833.

[0057] In the foregoing, the specific embodiments of the present application are described with reference to the drawings. However, it should be understood by those skilled in the art that various changes and replacements can be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and replacements are all within the scope defined by the present application.

Claims

1. An adhesive film heating apparatus, characterized by, The application relates to a rubber film heating device. The device comprises a traction assembly configured to traction the rubber film, a plurality of heating assemblies arranged in sequence along the traction direction of the rubber film, each of the heating assemblies comprising two heating devices, the two heating devices of any one of the heating assemblies being arranged on opposite sides of the rubber film, a heat dissipation assembly configured to dissipate heat from the heating devices of the heating assemblies, a plurality of first temperature detecting members corresponding to the heating assemblies, each of the first temperature detecting members being configured to detect the temperature of a heating area between the two heating devices of the corresponding heating assembly, and a control assembly signal-connected to the first temperature detecting members and configured to collect the temperature of each of the heating areas, the control assembly being further signal-connected to the heating assemblies and configured to control the heating state of the heating assemblies based on the temperature of the heating areas. The control assembly is preset with a first temperature threshold, and is configured to compare a first temperature signal of the heating area detected by the first temperature detecting member with the first temperature threshold. Based on the comparison result, the control assembly controls the heating power of the two heating devices of the heating assembly forming the heating area. The two heating devices of the same heating assembly have the same heating temperature. The heat dissipation assembly comprises a plurality of heat dissipation members, each of the heating devices of the heating assemblies being provided with a corresponding heat dissipation member, and the heat dissipation side of the heat dissipation member being arranged on the side of the heating device away from the rubber film.

2. The film heating apparatus of claim 1, wherein The rubber film heating device further comprises a plurality of second temperature detecting members, each of the heating devices of the heating assemblies being provided with a corresponding second temperature detecting member, and the second temperature detecting member being configured to detect the temperature of the corresponding heating device. The control assembly is signal-connected to the second temperature detecting members and configured to collect the temperature of each of the heating devices, and is further signal-connected to the heat dissipation members and configured to control the heat dissipation state of the heat dissipation member corresponding to the heating device based on the temperature of the heating device.

3. The film heating apparatus of claim 1, wherein The control assembly is preset with a second temperature threshold, and is configured to compare a second temperature signal of the heating device detected by the second temperature detecting member with the second temperature threshold.

4. The film heating apparatus of claim 1, wherein Based on the comparison result, the control assembly controls the heat dissipation power of the heat dissipation member corresponding to the heating device.

5. The film heating apparatus of claim 4, wherein The rubber film heating device further comprises a plurality of power supply assemblies corresponding to the heating assemblies, each of the power supply assemblies being configured to supply power to the two heating devices of the corresponding power supply assembly through a power supply line, and a fuse being arranged on the power supply line.

6. The film heating apparatus of claim 5, wherein The rubber film heating device further comprises a mounting assembly comprising a first mounting member and a second mounting member, the first mounting member being arranged at a distance from the second mounting member, and the rubber film moving between the first mounting member and the second mounting member.

7. The film heating apparatus of claim 6, wherein ​ ​ 8. The film heating apparatus of claim 1, wherein ​ 9. The film heating apparatus of claim 1, wherein ​ The heating devices of the heating assemblies located on the same side of the adhesive film are mounted on the first mounting member, and the heating devices of the heating assemblies located on the other side of the adhesive film are mounted on the second mounting member.

10. The film heating apparatus of claim 9, wherein The mounting assembly further comprises a distance adjustment mechanism configured to adjust the distance between the first mounting member and the second mounting member.

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