A constant temperature preheating box for black adhesive film

Abstract

The utility model discloses a kind of bottom black adhesive film constant-temperature preheating boxes, it includes preheating box body, heating component being set in preheating box body inside, temperature control box is arranged on preheating box body, temperature control box includes electrically connected MCU, temperature sensor, preheating box body two ends are provided with preheating box side plate, preheating box side plate is respectively provided with side plate opening, heating component is hollow structure, heating component includes radiation heating block, radiation heating block is connected with heating element, heating element and MCU are electrically connected.The bottom black adhesive film constant-temperature preheating box provided by the utility model is improved by various structures, the heating component designed in improvement design is designed as the rectangular box shape of two sides opening, it is installed parallel to preheating box body, can make heat evenly radiate, ensure that bottom black adhesive film upper surface and lower surface are evenly heated, without local overheating or supercooling point, effectively improve the quality of pre-treatment.

Description

Technical Field

[0001] This utility model relates to the field of preheating box technology, and in particular to a constant temperature preheating box with a black adhesive film bottom. Background Technology

[0002] In the manufacturing of electronic products, black adhesive film is widely used for bonding and fixing precision components. Before the lamination process of this type of adhesive film, it is usually preheated at a constant temperature. Preheating at a constant temperature can increase the tackiness of the activated adhesive film surface and improve its initial adhesion. However, in existing technologies, preheating of the black adhesive film often results in problems such as bubbles and warping due to excessively high temperatures. Utility Model Content

[0003] To solve the above-mentioned technical problems, the constant temperature preheating box for the black adhesive film provided by this utility model has made many structural improvements. The improved heating component is designed as a rectangular box with openings on both sides and is installed parallel to the body of the preheating box. Combined with a hollow radiant heating block made of high thermal conductivity materials such as aluminum alloy or copper alloy, it can radiate heat evenly, ensuring that the top and bottom of the black adhesive film are heated evenly without local overheating or undercooling points, thus effectively improving the quality of pretreatment.

[0004] This utility model is achieved using the following technical solution:

[0005] A constant temperature preheating chamber with a black adhesive film includes a preheating chamber body and a heating component disposed inside the preheating chamber body. A temperature control box is disposed on the preheating chamber body for configuring temperature control parameters. The temperature control box includes an MCU and a temperature sensor electrically connected to each other. Preheating chamber side plates are disposed at both ends of the preheating chamber body, and the side plates are respectively provided with side plate openings. The heating component has a hollow structure and includes a radiant heating block connected to a heating element, which is electrically connected to the MCU.

[0006] Preferably, the preheating box body and the heating component are both rectangular boxes with openings on both sides. The heating component is fixedly connected to the preheating box body through a heating block bracket, and the heating component is parallel to the preheating box body.

[0007] Preferably, the temperature control box panel is provided with a temperature display screen and control buttons, both of which are electrically connected to the MCU.

[0008] Preferably, the temperature sensor is disposed on the top surface of the radiant heating block.

[0009] Preferably, the heating element includes a PTC heating element, which in turn includes a PTC ceramic heating element.

[0010] Preferably, the side plate opening on one side is connected to an input dust removal component, which includes an electrostatic dust removal box, and an upper dust removal brush roller and a lower dust removal brush roller are provided inside the electrostatic dust removal box.

[0011] Preferably, dust removal roller support rods are provided on both sides inside the electrostatic dust removal box, and the upper dust removal brush roller and the lower dust removal brush roller are adjustablely mounted on the dust removal roller support rods.

[0012] Preferably, the opening of the side plate on the other side is connected to an output support component, the output support component including an output support box, and a support brush roller is provided inside the output support box.

[0013] Preferably, air supply holes are provided on the top and bottom surfaces of the radiant heating block.

[0014] Preferably, a circulating fan is provided corresponding to the air supply hole, and the circulating fan is a normal temperature fan or a hot air fan.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features several structural improvements. The redesigned heating component is a rectangular box with openings on both sides, installed parallel to the preheating chamber body. Combined with a hollow radiant heating block made of highly thermally conductive materials such as aluminum or copper alloy, it ensures uniform heat radiation, guaranteeing even heating of the black adhesive film from both the top and bottom, eliminating localized overheating or underheating points and effectively improving pretreatment quality. The side plate openings at both ends of the preheating chamber body allow the black adhesive film to pass through continuously and smoothly, adapting to assembly line operations without interrupting production for batch preheating, thus improving production efficiency. The improved air supply vents and circulating fan design create a hot air convection heating system that simultaneously heats the black adhesive film from both the top and bottom, solving problems such as insufficient heat penetration and large temperature differences between the surface and interior caused by thick adhesive film, low ambient temperature, or high transmission speed. This invention improves upon several structural aspects by incorporating an electrostatic dust removal box before the preheating component. Upper and lower dust-removing brush rollers remove dust and foreign matter attracted by electrostatic forces from the upper and lower surfaces of the base black adhesive film, preventing impurities from solidifying on the back of the film after preheating. This also prevents the generation of odors during heating and improves the product's appearance. The improved output support component uses a support brush roller with soft bristles to support and guide the activated, viscous adhesive film surface after preheating, preventing deformation after the base black adhesive film softens and protecting the pretreated adhesive surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this embodiment;

[0018] Figure 2This is a schematic diagram of the overall structure on the left side of this embodiment;

[0019] Figure 3 This is a three-dimensional structural diagram from the left perspective of this embodiment;

[0020] Figure 4 This is a three-dimensional structural diagram of the side panel of the preheating box in this embodiment;

[0021] Figure 5 This is a three-dimensional structural diagram of the preheating box body and the radiant heating block in this embodiment;

[0022] Figure 6 This is a three-dimensional structural diagram of the preheating box body and the radiant heating block from the right side in this embodiment;

[0023] Figure 7 This is a three-dimensional structural diagram of the preheating box body and the radiant heating block from the left side in this embodiment;

[0024] Figure 8 This is a three-dimensional structural diagram of the heating component in this embodiment;

[0025] Figure 9 This is a three-dimensional structural diagram of the radiant heating block in this embodiment.

[0026] Explanation of the reference numerals in the figure:

[0027] 1. Preheating chamber body; 11. Temperature control box; 12. Temperature sensor; 13. Preheating chamber side panel; 14. Side panel opening; 15. Temperature display screen; 16. Control buttons; 17. Adjustable support legs;

[0028] 2. Heating component; 21. Radiant heating block; 22. Heating block support; 23. Heating element; 24. Air outlet; 25. Circulating fan;

[0029] 3. Input dust removal components; 31. Electrostatic dust removal box; 32. Auxiliary roller support rod; 33. Upper dust removal brush roller; 34. Lower dust removal brush roller;

[0030] 4. Output support components; 41. Output support box; 42. Support brush roller. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] Example 1

[0033] See Figures 1 to 9The constant temperature preheating box for black adhesive film provided in this embodiment includes: a preheating box body 1 and a heating component 2 disposed inside the preheating box body 1; a temperature control box 11 is disposed on the preheating box body 1, and the temperature control box 11 is used to configure temperature control parameters.

[0034] The temperature control box 11 includes an electrically connected MCU and a temperature sensor 12. The preheating box body 1 has preheating box side plates 13 at both ends, and the preheating box side plates 13 are respectively provided with side plate openings 14. The heating component 2 has a hollow structure and includes a radiant heating block 21. The radiant heating block 21 is connected to a heating element 23, and the heating element 23 is electrically connected to the MCU.

[0035] Preferably, the preheating box body 1 and the heating component 2 are both rectangular boxes with openings on both sides. The heating component 2 is made of aluminum alloy or copper alloy. The heating component 2 is fixedly connected to the preheating box body 1 through the heating block bracket 22. The heating component 2 is parallel to the preheating box body 1.

[0036] The temperature control box 11 has a temperature display screen 15 and control buttons 16 on its panel. Both the temperature display screen 15 and control buttons 16 are electrically connected to the MCU.

[0037] The constant temperature preheating chamber for the black adhesive film in this embodiment features several structural improvements. The redesigned heating component is a rectangular box with openings on both sides, installed parallel to the preheating chamber body. Combined with a hollow radiant heating block made of high thermal conductivity materials such as aluminum alloy or copper alloy, it can radiate heat evenly, ensuring uniform heating of the black adhesive film on both the top and bottom, without localized overheating or underheating points, effectively improving the quality of pretreatment. The side plate openings at both ends of the preheating chamber body allow the black adhesive film to pass through the preheating chamber continuously and smoothly, adapting to assembly line operations without interrupting production for batch preheating, thus improving production efficiency.

[0038] Example 2

[0039] See Figures 1 to 9 The constant temperature preheating box with black adhesive film provided in this embodiment is an improvement on the basis of embodiment 1. The side plate opening 14 on one side is connected to the input dust removal component 3. The input dust removal component 3 includes an electrostatic dust removal box 31. The electrostatic dust removal box 31 is provided with an upper dust removal brush roller 33 and a lower dust removal brush roller 34. Dust removal roller support rods 32 are provided on both sides of the electrostatic dust removal box 31. The upper dust removal brush roller 33 and the lower dust removal brush roller 34 are adjustablely mounted on the dust removal roller support rods 32.

[0040] The upper dust removal brush roller 33 and the lower dust removal brush roller 34 respectively brush away the dust and foreign matter attached to the upper and lower surfaces of the bottom black adhesive film by electrostatic adsorption.

[0041] The side plate opening 14 on the other side is connected to an output support component 4, which includes an output support box 41, and a support brush roller 42 is provided inside the output support box 41.

[0042] Example 3

[0043] See Figures 1 to 9 The bottom black film constant temperature preheating box provided in this embodiment is an improvement on the above embodiment. The temperature sensor 12 is set on the top surface of the radiant heating block 21. The temperature sensor 12 is used to monitor the temperature of the radiant heating block 21 in real time and feed the signal back to the temperature control box 11.

[0044] Preferably, the temperature display screen 15 and control button 16 are located on the outer wall of the preheating box body 1, and are used to display the real-time temperature, set temperature and equipment status, and to allow operators to input commands.

[0045] Preferably, the heating element 23 includes a PTC heating element, wherein the PTC heating element includes a PTC ceramic heating element;

[0046] Preferably, the radiant heating block 21 is fixedly installed inside the preheating box body 1 by the heating block bracket 22, and the heating element 23 is encapsulated inside. The radiant heating block 21 mainly transfers heat to the bottom black film through radiation.

[0047] Example 4

[0048] See Figures 1 to 9 The bottom black film constant temperature preheating box provided in this embodiment is an improvement on the above embodiment. The radiant heating block 21 is a rectangular box with openings at both ends. Air supply holes 24 are respectively provided on the upper and lower surfaces of the radiant heating block 21.

[0049] Preferably, a circulating fan 25 is provided at the bottom of the air outlet 24 at the lower part of the radiant heating block 21; the circulating fan 25 blows hot air from the bottom through the air outlet 24 to the bottom surface of the black adhesive film, thereby heating the bottom surface of the black adhesive film.

[0050] Preferably, a circulating fan 25 is provided on the upper part of the air outlet 24 of the radiant heating block 21; the circulating fan 25 is a normal temperature fan, and the circulating fan 25 blows the hot air from the top to the top surface of the bottom black film through the air outlet 24, thereby heating the top surface of the bottom black film.

[0051] Preferably, when the bottom black film is thick or the room temperature is low, relying solely on the radiation heating block 21 for radiation heating may result in insufficient heat. By setting up air supply holes 24 and circulating fans 25 to provide double-sided air heating for the bottom black film, the preheating efficiency is further improved.

[0052] Preferably, when the bottom black film is conveyed quickly, the circulating fan 25 is a hot air blower, and a PTC heating element 23 is provided at the air outlet of the hot air blower; at this time, the circulating fan 25 blows hot air, and at the same time, the bottom black film is heated on both sides to make up for the problem of insufficient heat of the radiant heating block 21.

[0053] Example 5

[0054] See Figures 1 to 9 The constant temperature preheating box for the base black adhesive film provided in this embodiment is an improvement on the above embodiment. The supporting brush roller 42 uses its soft bristles to support and guide the preheated base black adhesive film, avoiding scratching the activated and sticky adhesive film surface. Preferably, the bottom of the preheating box body 1 is provided with adjustable support legs 17.

[0055] In operation, the operator sets the desired preheating temperature using control button 16. After the equipment starts, the black adhesive film is introduced through the side plate opening 14 and enters the electrostatic dust removal box 31. The black adhesive film passes between the upper dust removal brush roller 33 and the lower dust removal brush roller 34. These two brush rollers are in close contact with the upper and lower surfaces of the film, respectively, and remove dust, fibers, and other small foreign objects adsorbed on the surface of the film due to static electricity through physical brushing. One side of the black adhesive film is an adhesive side, and the other side is a backing adhesive side. A protective film is provided on the adhesive side. If the backing adhesive side adsorbs dust, fibers, and other small foreign objects, it will not only easily produce odors when heated, but also affect the appearance and quality of the product. The upper and lower dust removal brush rollers are adjustablely installed through the dust removal roller support rod 32 to accommodate films of different thicknesses, ensuring the dust removal effect while avoiding excessive compression or damage to the film. After dust removal, the black adhesive film passes through the side plate opening 14 and enters the preheating box body 1. Temperature sensor 12, mounted on radiant heating block 21, monitors the temperature of the heating block in real time and feeds the data back to MCU. MCU compares the measured temperature with the set temperature and dynamically adjusts heating element 23 to ensure that the temperature of radiant heating block remains constant within the set range. Heating element 23, once powered on, heats radiant heating block 21 to the set temperature. Since the radiant heating block is made of highly thermally conductive aluminum or copper alloy and designed as a rectangular box parallel to the path of the black adhesive film, it acts as a uniform planar heat source, radiating heat to the upper and lower surfaces of the adhesive film. When the production line speed is extremely high or the ambient temperature is low, and the radiant preheating temperature is insufficient, the heating function of circulating fan 25 can be activated to blow out hot air. The hot air convection can supplement the heat, compensating for the insufficient radiant heating and ensuring that the adhesive film produced at a relatively high speed can still reach the activation temperature required by the process. The uniformly preheated black adhesive film is led out from the side plate opening 14 on the other side. Support brush roller 42 uses its soft bristles to support and guide the black adhesive film into the next process.

[0056] In summary, the above embodiments of this utility model, through various structural improvements, feature an improved heating component designed as a rectangular box with openings on both sides, installed parallel to the preheating box body. Combined with a hollow radiant heating block made of highly thermally conductive materials such as aluminum alloy or copper alloy, this design ensures uniform heat radiation, guaranteeing even heating of the bottom black adhesive film both above and below, eliminating localized overheating or underheating points and effectively improving pretreatment quality. The side plate openings at both ends of the preheating box body allow the bottom black adhesive film to pass through continuously and smoothly, adapting to assembly line operations without interrupting production for batch preheating, thus improving production efficiency. The improved design of the air supply holes and circulating fan in this utility model forms a hot air convection heating system, capable of simultaneously heating the bottom black adhesive film from both the top and bottom, solving the problems of insufficient heat penetration and large temperature differences between the surface and interior caused by thick adhesive film, low ambient temperature, or high transmission speed. This invention improves upon several structural aspects by incorporating an electrostatic dust removal box before the preheating component. Upper and lower dust-removing brush rollers remove dust and foreign matter attracted by electrostatic forces from the upper and lower surfaces of the base black adhesive film, preventing impurities from solidifying on the back of the film after preheating. This also prevents the generation of odors during heating and improves the product's appearance. The improved output support component uses a support brush roller with soft bristles to support and guide the activated, viscous adhesive film surface after preheating, preventing deformation after the base black adhesive film softens and protecting the pretreated adhesive surface.

[0057] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A constant temperature preheating chamber with a black adhesive film, comprising a preheating chamber body and a heating component disposed inside the preheating chamber body, characterized in that: The preheating box body is equipped with a temperature control box, which includes an electrically connected MCU and a temperature sensor. The preheating box body has preheating box side plates at both ends, and the preheating box side plates are respectively provided with side plate openings. The heating component is a hollow structure, which includes a radiant heating block. The radiant heating block is connected to a heating element, and the heating element is electrically connected to the MCU.

2. The constant temperature preheating box with black adhesive film as described in claim 1, characterized in that: The preheating box body and the heating component are both rectangular boxes with openings on both sides. The heating component is fixedly connected to the preheating box body through a heating block bracket and is parallel to the preheating box body.

3. The constant temperature preheating chamber with black adhesive film as described in claim 1, characterized in that: The temperature control box panel is equipped with a temperature display screen and control buttons, both of which are electrically connected to the MCU.

4. The constant temperature preheating chamber with black adhesive film as described in claim 1, characterized in that: The temperature sensor is located on the top surface of the radiant heating block.

5. The constant temperature preheating chamber for black adhesive film according to claim 1, characterized in that: The heating element includes a PTC heating element, which in turn includes a PTC ceramic heating element.

6. The constant temperature preheating chamber with black adhesive film as described in claim 1, characterized in that: The side panel opening on one side is connected to an input dust removal component, which includes an electrostatic dust removal box, and an upper dust removal brush roller and a lower dust removal brush roller are installed inside the electrostatic dust removal box.

7. The constant temperature preheating chamber for black adhesive film according to claim 6, characterized in that: Dust removal roller support rods are provided on both sides inside the electrostatic dust removal box, and the upper dust removal brush roller and the lower dust removal brush roller are adjustablely mounted on the dust removal roller support rods.

8. The constant temperature preheating box with black adhesive film as described in claim 6, characterized in that: The side plate opening on the other side is connected to an output support component, which includes an output support box and a support brush roller is provided inside the output support box.

9. The constant temperature preheating chamber with black adhesive film as described in claim 1, characterized in that: The radiant heating block has air supply holes on its top and bottom surfaces, respectively.

10. The constant temperature preheating chamber for black adhesive film according to claim 9, characterized in that: Each air outlet is equipped with a corresponding circulating fan, which can be a normal temperature fan or a hot air fan.

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