Mobile phone module bending device

Abstract

The utility model relates to the technical field of AMOLED display screens, in particular to a mobile phone module bending device which comprises a machining platform (1). A heating module is arranged on the processing platform (1); the heating module is arranged on one side of the mobile phone module (2); the heating module is installed on the processing platform, the temperature is raised to a set value and is kept constant, the temperature is conducted to a glue coating layer (UV glue) on the surface of the twisted area, the glue layer is heated to be softened, and then terminal bending is carried out; according to the method, the problem that the stress of the twist area is too large under the condition that the thickness of the glue is not uniform and the glue cannot be reworked can be effectively solved, and the yield of the bending process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of AMOLED display screens, and in particular to a mobile phone module bending device. Background Art

[0002] In the AMOLED module flexible screen bending process, the equipment bends the FPCA onto the back of the phone screen with high precision, and then adheres the FPCA adhesive to the copper foil surface on the back of the screen by maintaining pressure. However, using the traditional bending process, the thickness specification of the glue (UV glue) coating in the twisted area must be strictly controlled before the terminal bending process can be put into operation. Otherwise, the uneven thickness of the glue (UV glue) coating will cause excessive stress in the twisted area of the terminal during the bending process, which may cause the internal circuit of the twisted area to break, resulting in product damage and cost losses to the company.

[0003] After searching, the applicant found that the Chinese patent document with publication number CN111113866A disclosed on May 8, 2020, an OLED flexible screen bending machine, including: a base, a fixed seat and a flip platform, a servo motor is fixedly arranged on the side of the fixed seat; a screen placement platform, a four-axis electric fine-tuning platform is arranged between the screen placement platform and the base; a positioning camera, which is arranged directly above the screen placement platform; a controller, which is fixed on the base; this device also cannot solve the above technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing mobile phone bending device. Utility Model Content

[0005] The purpose of the utility model is to provide a mobile phone module bending device that can avoid excessive stress in the twist area of the flexible screen terminal.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a mobile phone module bending device, including a processing platform; a heating module is provided on the processing platform; and the heating module is provided on one side of the mobile phone module.

[0007] The heating module includes a heating block; the heating block is arranged on the side of the processing platform and at one end close to the top surface of the processing platform.

[0008] A constant temperature control box is provided in the processing platform; the heating block is connected to the constant temperature control box.

[0009] The heating block is provided with a thermocouple; the thermocouple is connected to the constant temperature control box.

[0010] The heating block is provided with a temperature control switch; the temperature control switch is connected to the constant temperature control box.

[0011] The constant temperature control box includes a temperature control board; the thermocouple is connected to the temperature control board; and the heating block is connected to the temperature control board via the temperature control switch.

[0012] A first mounting groove is provided on the side of the processing platform; the heating block is installed in the first mounting groove; a second mounting groove is provided in the processing platform; and the constant temperature control box is arranged in the second mounting groove.

[0013] A display screen is provided on the side of the processing platform; the display screen is connected to the temperature control board.

[0014] The mobile phone module includes a flexible screen; a terminal is provided on one side of the flexible screen; a twisted area is provided between the flexible screen and the terminal; the flexible screen is arranged on the top of the processing platform and on the side of the processing platform close to the heating block; the twisted area is arranged on the top of the heating block.

[0015] The heating block is an aluminum block; the temperature control switch is a snap-type temperature control switch; the thermocouple is a K-type thermocouple; and the temperature control board is a single-chip computer board.

[0016] The beneficial effects of this application are:

[0017] 1. The present application provides a heating module on the processing platform; when the glue coating on the twisted area of the terminal is too thick, the terminal is bent directly at this time, and the pipeline in the twisted area will be subjected to greater stress, resulting in rupture of the internal pipeline; the heating module is installed on the processing platform to heat up to a set value and maintain a constant temperature, and the temperature is transmitted to the glue layer (UV glue) on the surface of the twisted area, so that the glue layer is heated and softened, and then the terminal is bent; it can effectively solve the problem of excessive stress in the twisted area of the terminal due to uneven glue thickness and the inability to rework the glue, and can improve the yield rate of the bending process.

[0018] 2. The heating module of the present application includes a heating block, a thermocouple and a temperature control switch; the module uses the principle of generating heat energy from electric energy, and the thermocouple maintains a constant temperature through circuit feedback; according to the characteristics of the glue layer (UV glue) in the twist area, the temperature of the constant temperature module on the terminal bending platform is set to 65°C before product processing. When the constant temperature reaches this temperature, the product can be put into equipment processing; it effectively guarantees the product yield and reduces cost losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a structural diagram of the bending device of the mobile phone module.

[0021] Figure 2 This is a perspective view of the internal structure of the bending device of the mobile phone module.

[0022] Figure 3 This is a schematic diagram of the working status of the mobile phone module bending device.

[0023] The marks in the above figure are:

[0024] The following are marked in the figure:

[0025] 1. Processing platform, 101. First installation slot, 102. Second installation slot,

[0026] 2. Mobile phone module, 201. Flexible screen, 202. Terminal, 203. Twist area,

[0027] 3. Heating block, 301, thermocouple, 302, temperature control switch,

[0028] 4. Constant temperature control box, 401. Temperature control panel, 402. Display screen. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate its implementation.

[0030] Figure 1 The mobile phone module bending device shown includes a processing platform 1; a heating module is provided on the processing platform 1; and the heating module is provided on one side of the mobile phone module 2.

[0031] The heating module is installed on the processing platform 1, and the temperature is raised to a set value and maintained constant. The temperature is transmitted to the glue layer (UV glue) on the surface of the twisted area 203, so that the glue layer is softened by the heat, and then the terminal 202 is bent. This can effectively solve the problem of excessive stress in the twisted area 203 due to uneven glue thickness and the inability to rework the glue, and can improve the yield rate of the bending process.

[0032] The heating module includes a heating block 3 ; the heating block 3 is arranged on the side of the processing platform 1 and at one end close to the top surface of the processing platform 1 .

[0033] The heating block 3 is a long aluminum alloy block, using a 36V DC heating method to ensure safety, and the power is selected to be 400W; the heating block 3 is arranged on the side of the processing platform 1 and along the middle of the top edge of the processing platform 1.

[0034] The processing platform 1 includes a constant temperature control box 4 ; the heating block 3 is connected to the constant temperature control box 4 .

[0035] The constant temperature control box 4 is a square box installed below the working area of the processing platform 1. The power supply in the constant temperature control box 4 is connected to the heating block 3. After the power is turned on, the heating block 3 will start to heat up. It will take 3 to 5 minutes to reach a constant temperature and maintain it at 65°.

[0036] The heating block 3 is provided with a thermocouple 301 ; the thermocouple 301 is connected to the constant temperature control box 4 .

[0037] The thermocouple 301 is a K-type thermocouple with a measurement range of 0 to 100° C. The thermocouple 301 can measure the temperature of the heating block 3 in real time and feed back the actual temperature to the constant temperature control box 4 , which controls the heating block 3 to maintain a constant temperature of 65°.

[0038] The heating block 3 is provided with a temperature control switch 302 ; the temperature control switch 302 is connected to the constant temperature control box 4 .

[0039] The temperature control switch 302 is made of two metal layers with different thermal expansion coefficients. The temperature control switch 302 is connected between the heating block 3 and the constant temperature control box 4. When the temperature rises to the set value, the different thermal expansion degrees of the two layers of metal cause the bimetallic strip to bend, thereby triggering the spring to operate, disconnecting the circuit and playing the role of overheat protection. When the temperature drops, the bimetallic strip will return to its original state, the contacts will reclose, and the circuit will be connected again. The over-temperature protection temperature of the temperature control switch 302 is 65°C, DC 100V, 1A specification.

[0040] The constant temperature control box 4 includes a temperature control board 401 ; the thermocouple 301 is connected to the temperature control board 401 ; and the heating block 3 is connected to the temperature control board 401 via a temperature control switch 302 .

[0041] The temperature control board 401 is a single-chip microcomputer board that can receive and process the temperature signal input by the thermocouple 301, thereby controlling the power supply and heating of the heating block 3; when the temperature exceeds the set value, the temperature control switch 302 will automatically disconnect the circuit connection between the heating block 3 and the temperature control board 401 to prevent the heating block 3 from continuing to heat up; when the temperature is within the set range, the temperature control switch 302 ensures that the circuit is normally connected and performs normal heating work.

[0042] A first mounting groove 101 is provided on the side of the processing platform 1 ; the heating block 3 is installed in the first mounting groove 101 ; a second mounting groove 102 is provided in the processing platform 1 ; and the constant temperature control box 4 is provided in the second mounting groove 102 .

[0043] The first mounting groove 101 is a strip-shaped groove and is provided on the side of the processing platform 1; a wiring hole is provided at the end of the first mounting groove 101; the first mounting groove 101 can provide an installation position for the heating block 3; and the wiring hole is connected to the second mounting groove 102 and the constant temperature control box 4, which can facilitate circuit routing; the second mounting groove 102 is a square groove and is provided inside the processing platform 1.

[0044] A display screen 402 is provided on the side of the processing platform 1 ; the display screen 402 is connected to the temperature control board 401 .

[0045] The display screen 402 is arranged on the side wall of the processing platform 1, which can display the working status of the heating block 3 in real time; it can display the real-time temperature and whether any abnormality information occurs to the staff; the staff can also adjust the heating temperature and switch the power supply by touching the display screen 402.

[0046] The mobile phone module 2 includes a flexible screen 201; a terminal 202 is provided on one side of the flexible screen 201; a twisted area 203 is provided between the flexible screen 201 and the terminal 202; the flexible screen 201 is arranged on the top of the processing platform 1, and is arranged on the side of the processing platform 1 close to the heating block 3; the twisted area 203 is arranged on the top of the heating block 3.

[0047] The twisted area 203 is arranged between the flexible screen 201 and the terminal 202; the flexible screen 201 is placed in the top processing area of the processing platform 1; the twisted area 203 is suspended above the heating block 3, and the glue-coated surface of the twisted area 203 is placed downward; the heating block 3 heats the air to rise, thereby heating the glue-coated surface of the twisted area 203, thereby softening the UV glue. At this time, the bending jig moves upward from the bottom of the terminal 202, rotating the terminal 202 and the twisted area 203 180°, and fitting them to the back panel of the flexible screen 201.

[0048] The heating block 3 is an aluminum block; the temperature control switch 302 is a snap-type temperature control switch; the thermocouple 301 is a K-type thermocouple; and the temperature control board 401 is a single-chip computer board.

[0049] The aluminum block has good thermal conductivity and can achieve rapid and uniform heating. The snap-action temperature switch can respond quickly to temperature changes and has a fast action speed, which can timely control temperature fluctuations. It is also low in cost, stable in performance, and high in precision. The K-type thermocouple has good linearity, large thermoelectromotive force, and high sensitivity, and the measurement is stable and accurate.

[0050] The specific workflow of this utility model is as follows:

[0051] After the constant temperature plate 401 controls the power supply to be turned on, the heating block 3 begins to heat up, and it takes 3 to 5 minutes to reach a constant temperature and maintain it at 65°; the flexible screen 201 is placed on the top processing area of the processing platform 1; the twisted area 203 is suspended above the heating block 3, and the glued surface of the twisted area 203 is placed downward; the heated air of the heating block 3 rises, thereby heating the glued surface of the twisted area 203, thereby softening the UV glue. At this time, the bending jig moves upward from the bottom of the terminal 202, rotating the terminal 202 and the twisted area 203 180°, and fitting them to the back panel of the flexible screen 201.

[0052] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A mobile phone module bending device, characterized by: It comprises a processing platform (1); a heating module is provided on the processing platform (1); the heating module is provided on one side of the mobile phone module (2); The heating module comprises a heating block (3); the heating block (3) is arranged on the side of the processing platform (1) and at one end close to the top surface of the processing platform (1); The mobile phone module (2) comprises a flexible screen (201); a terminal (202) is provided on one side of the flexible screen (201); a twisted area (203) is provided between the flexible screen (201) and the terminal (202); the flexible screen (201) is provided on the top of the processing platform (1) and on a side of the processing platform (1) close to the heating block (3); the twisted area (203) is provided on the top of the heating block (3).

2. A mobile phone module bending device according to claim 1, characterized in that: A constant temperature control box (4) is provided in the processing platform (1); the heating block (3) is connected to the constant temperature control box (4).

3. A mobile phone module bending device according to claim 2, characterized in that: The heating block (3) is provided with a thermocouple (301); the thermocouple (301) is connected to the constant temperature control box (4).

4. A mobile phone module bending device according to claim 3, characterized in that: The heating block (3) is provided with a temperature control switch (302); the temperature control switch (302) is connected to the constant temperature control box (4).

5. A mobile phone module bending device according to claim 4, characterized in that: The constant temperature control box (4) includes a temperature control plate (401); the thermocouple (301) is connected to the temperature control plate (401); and the heating block (3) is connected to the temperature control plate (401) via the temperature control switch (302).

6. A mobile phone module bending device according to claim 5, characterized in that: A first mounting groove (101) is provided on the side of the processing platform (1); the heating block (3) is installed in the first mounting groove (101); a second mounting groove (102) is provided in the processing platform (1); and the constant temperature control box (4) is arranged in the second mounting groove (102).

7. A mobile phone module bending device according to any one of claims 5-6, characterized in that: A display screen (402) is provided on the side of the processing platform (1); the display screen (402) is connected to the temperature control plate (401).

8. A mobile phone module bending device according to claim 7, characterized in that: The heating block (3) is an aluminum block; the temperature control switch (302) is a snap-type temperature control switch; the thermocouple (301) is a K-type thermocouple; and the temperature control board (401) is a single-chip computer board.

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