Anti-arch-reversing pressure maintaining device for folding screen

Abstract

The utility model provides an anti-arch-reversing pressure maintaining device for a folding screen. The anti-arch-reversing pressure maintaining device comprises a base, an upper die and a pressing device. The upper die is arranged on the base, and the upper die and the base are enclosed to form a pressing area for accommodating the folding screen mobile phone; the pressing device is located between the base and the upper die, and a pressing strip is arranged on the face, facing the base, of the pressing device in a protruding mode. The folding screen anti-arch pressure maintaining device provided by the utility model applies pressure to the folding screen mobile phone to solidify glue so as to stably connect the folding screen and the rotating shaft, so that the tension between the folding screen and the rotating shaft is stable, the occurrence of anti-arch is avoided, the structural reliability of the folding screen mobile phone is ensured, and the service life of the folding screen mobile phone is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of mobile equipment processing, and in particular relates to a folding screen anti-reverse arch pressure maintaining device. Background Art

[0002] The folding screen mobile phone includes a folding screen and a mobile phone middle frame. The folding screen includes a first screen and a second screen. The mobile phone middle frame includes a first mounting frame installed corresponding to the first screen, a second mounting frame installed corresponding to the second screen, and a rotating shaft connecting the first mounting frame and the second mounting hole. A rotating shaft cover is installed on the side of the rotating shaft away from the folding screen. In the production process of the folding screen mobile phone, after the folding screen is assembled, the folding screen needs to be attached to the mobile phone middle frame through a glue layer. After the attachment is completed, the mobile phone middle frame and the screen are placed under pressure for a certain period of time to maintain pressure to ensure that the adhesion is firm. In large-scale production, the operator places the attached mobile phone middle frame and the folding screen on a jig and presses them together through pneumatic tooling. During the pressing process, due to the squeezing effect on both ends of the folding screen, it is easy to produce an anti-arch in the middle, resulting in uneven force in the folding area of ​​the folding screen mobile phone, increasing the wear and fatigue of the folding screen. Long-term anti-arching is easy to cause the folding part of the folding screen to have problems such as deepening creases, abnormal display, and touch failure, thereby shortening the normal service life of the screen. In addition, the anti-arching of the folding screen may also affect the internal circuits and components, increasing the risk of damage. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a folding screen anti-arching pressure-maintaining device, which applies pressure to various parts of the folding screen and eliminates the arching during the pressing process, thereby ensuring the flatness of the folding screen during the pressure-maintaining process.

[0004] The utility model provides a folding screen anti-backward arching and pressure maintaining device, comprising a base, an upper mold and a pressing device; the upper mold is arranged on the base, and the upper mold and the base are enclosed to form a pressing area for accommodating a folding screen mobile phone; the pressing device is located between the base and the upper mold, and a pressure strip is provided on a side of the pressing device protruding toward the base.

[0005] In the folding screen anti-rebound pressure maintaining device provided by the utility model, the base and the upper mold form a pressing area, and the folding screen mobile phone is accommodated in the pressing area. The pressing device is used to apply pressure to the folding screen and the middle frame of the mobile phone, and discharge the air between the glue layer and the folding screen, and between the glue layer and the middle frame of the mobile phone, and continue to apply pressure to maintain the pressure. The pressure strip is used to press on the position of the folding screen that is prone to reverse arching, and squeeze the position to solidify the glue, so as to stably connect the folding screen and the rotating shaft, so that the tension between the folding screen and the rotating shaft is stable, and reverse arching is avoided, thereby ensuring the structural reliability of the folding screen mobile phone and extending its service life.

[0006] Furthermore, the pressing strip is located in the middle of the pressing device and corresponds to the middle of the folding screen of the folding screen mobile phone. Since the two ends of the folding screen are easily arched in the middle under the extrusion effect, a rib is provided at the corresponding position of the pressing device to extrude and discharge air to eliminate the arch.

[0007] Furthermore, the pressing device includes a pressing plate, and the pressing strip is arranged in the middle of the pressing plate; the area of the pressing plate is not less than the area of the folding screen. The pressing plate is used to apply uniform pressure to each part of the folding screen.

[0008] Furthermore, the pressing strip extends along the width direction of the folding screen, and the length of the pressing strip is not less than the width of the folding screen. The pressing strip is arranged at the position where the folding screen is prone to arching and applies a certain pressure along the width direction of the folding screen.

[0009] Furthermore, the height of the pressing strip is 0.1 - 0.2 mm. If the height of the pressing strip is too high, it is easy to cause the entire pressing plate to warp, which is not conducive to applying uniform pressure to each part of the folding screen. If the height of the pressing strip is too low, it cannot ensure that the air is discharged by applying pressure to eliminate the arch.

[0010] Furthermore, a limiting frame is convexly arranged on the surface of the base facing the upper die, and the limiting frame and the base form a pressing area. The limiting frame is used to limit the folding screen mobile phone to prevent displacement during the pressing process.

[0011] Furthermore, the top surface of the limiting frame is arc-shaped and adapted to the shape of the edge of the folding screen. Through the arc-shaped top surface of the limiting frame, the folding screen is limited by the limiting frame, and a certain support is provided for the folding screen by the limiting frame, achieving a better pressing effect.

[0012] Furthermore, the pressing area sequentially includes a first limiting area adapted to the shape of the folding screen, a rotating shaft cover limiting area, and a second limiting area along the length direction of the base. According to the shape of the folding screen, the pressing area can limit the folding screen.

[0013] Further, a first limiting rib and a second limiting rib are provided on a surface of the base facing the upper mold, and both the first limiting rib and the second limiting rib are located within the limiting frame; a first limiting area is formed by enclosing the limiting frame, the first limiting rib, and the base, and a second limiting area is formed by enclosing the limiting frame, the second limiting rib, and the base; a second limiting area is formed by enclosing the limiting frame, the first limiting rib, the second limiting rib, and the base; a rotating shaft cover limiting area is formed by enclosing the limiting frame, the first limiting rib, the second limiting rib, and the base; the height of the limiting frame is higher than the height of the folding screen mobile phone, and both the first limiting rib and the second limiting rib are used to abut against the folding screen mobile phone. The limiting frame is used to limit the folding screen mobile phone, and the first limiting rib abuts against the folding screen mobile phone, so that the first mounting frame of the folding screen mobile phone is limited and supported, and the first limiting rib abuts against the folding screen mobile phone, so that the second mounting frame of the folding screen mobile phone is limited and supported; since the height of the limiting frame is higher than the height of the folding screen mobile phone, during pressing, the folding screen mobile phone abuts against and is supported by the limiting frame, and it is in a separated state from the base, and the rotating shaft cover of the folding screen mobile phone is accommodated in the rotating shaft cover limiting area. Since the rotating shaft cover protrudes relative to the folding screen, the folding screen mobile phone is in a separated state from the base, leaving a protruding space for the rotating shaft cover for clearance.

[0014] Further, the folding screen anti - arch and pressure - maintaining device further includes a plurality of first magnetic - attracting members and a plurality of second magnetic - attracting members. The plurality of first magnetic - attracting members are arranged on a surface of the upper mold facing the base, and the plurality of second magnetic - attracting members are arranged on a surface of the base facing the upper mold; the position of each first magnetic - attracting member corresponds to the position of a second magnetic - attracting member, and each first magnetic - attracting member is magnetically fixed to a second magnetic - attracting member. The first magnetic - attracting member and the second magnetic - attracting member are magnetically fixed, so that the upper mold and the base are firmly connected, and the pressing plate provides a stable pressure for the folding screen mobile phone.

[0015] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the folding screen anti - arch and pressure - maintaining device.

[0017] Figure 2 is an exploded view of the folding screen anti - arch and pressure - maintaining device.

[0018] Figure 3 is a schematic structural diagram of the base.

[0019] Figure 4 is a schematic structural diagram of the pressing strip.

[0020] Figure 5 is Figure 4Enlarged view of location A.

[0021] Figure 6 It is a schematic structural diagram of another angle of the pressing strip.

[0022] Figure 7 It is Figure 3 Enlarged view of location B.

[0023] Figure 8 It is a schematic structural diagram of a folding screen mobile phone.

[0024] Figure 9 It is a schematic structural diagram of the middle frame of a folding screen mobile phone.

[0025] Figure 10 It is a pressing schematic diagram of a folding screen mobile phone.

[0026] Figure 11 It is Figure 10 Enlarged view of location C. Detailed implementation manners

[0027] The following further elaborates on the embodiments of the present utility model in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described herein are only used to explain the embodiments of the present utility model, rather than limiting the embodiments of the present utility model. Additionally, it should be noted that for the sake of description, only parts related to the embodiments of the present utility model are shown in the drawings, rather than all the structures.

[0028] Furthermore, the terms first, second, third, etc. in the specification and claims are only used for the purpose of differentiating the description of the same technical features, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features, nor necessarily describing the order or time sequence. The terms can be interchanged under appropriate circumstances. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features.

[0029] Similarly, the terms "fixed" and "connected" are also used in the specification and claims, and should not be understood as being limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in the device or system. It means that there is a path between device A and device B, which can be a path including other devices or tools.

[0030] Example 1

[0031] This embodiment provides a folding screen anti - arch pressure - maintaining device, Figure 1 It is a schematic structural diagram of a folding screen anti - arch pressure - maintaining device, Figure 2 It is an exploded view of a folding screen anti - arch pressure - maintaining device, Figure 3 It is a schematic structural diagram of the base. Please refer toFigures 1 - 3 The folding screen anti-reverse arch pressure-maintaining device comprises a base 1, an upper mold 2 and a pressing device 3; the upper mold 2 is arranged on the base 1, and the upper mold 2 and the base 1 enclose a pressing area 8 for accommodating a folding screen mobile phone;

[0032] Figure 4 This is a schematic diagram of the structure of the layering strip. Figure 5 yes Figure 4 A magnified image. Figure 6 This is a schematic diagram of the structure of the layering strip from another angle. Please refer to Figures 4 - 6 The pressing device 3 is located between the base 1 and the upper mold 2 , and a pressure strip 4 is provided on a protruding side of the pressing device 3 facing the base 1 .

[0033] In the folding screen anti-arching pressure maintaining device provided in this embodiment, the base 1 and the upper mold 2 form a pressing area 8, and the folding screen mobile phone is accommodated in the pressing area 8. The pressing device is used to apply pressure to the folding screen 91 and the mobile phone middle frame 92 to discharge the air between the glue layer and the folding screen 91 and between the glue layer and the mobile phone middle frame, and continue to apply pressure to maintain pressure. The pressure strip 4 is used to press on the easy-arching position of the folding screen 91 to solidify the glue to stably connect the folding screen and the rotating shaft, so that the tension between the folding screen and the rotating shaft is stable, and arching is avoided, thereby ensuring the structural reliability of the folding screen mobile phone and extending the service life of the device.

[0034] See also Figures 4 - 6 In this embodiment, the pressure strip 4 is located in the middle of the pressing device 3, and is used to correspond to the middle of the folding screen 91 of the folding screen mobile phone. During the bonding process between the middle frame of the mobile phone and the folding screen, glue is dispensed on the middle frame of the mobile phone to form a glue layer. The middle of the folding screen 91 is a bending area, which needs to maintain a high degree of adhesion and flatness. Since the two ends of the folding screen are squeezed, it is easy to form a certain height of arch in the middle. Therefore, in the folding screen mobile phone structure, a connecting part is set in the middle of the avoidance area between the folding screen and the rotating shaft, and hot melt glue is dispensed on the connecting part, so that the connecting part generates tension on the folding screen, thereby avoiding the occurrence of arch in the bending area of ​​the folding screen. In order to make the connecting part generate stable pulling force on the folding screen, the folding screen anti-reverse arch pressure maintaining device provided in this embodiment is used for pressure maintaining. The pressing device 3 is provided with a pressure strip 4 on a side protruding toward the base 1 to provide continuous pressure on the hot melt adhesive. The pressure is maintained for 4 hours before being removed. During the pressure maintaining process, the hot melt adhesive solidifies to stably connect the folding screen and the rotating shaft, so that the pulling force between the folding screen and the rotating shaft is stable, thereby avoiding reverse arching, ensuring the structural reliability of the folding screen mobile phone and extending its service life.

[0035] In another embodiment, the number of the pressing strips 4 is at least three, which are respectively located at the two side edges and the middle of the pressing device 3 .

[0036] See also Figures 4 - 6In this embodiment, the pressing device 3 includes a pressing plate, and the pressing strip 4 is arranged in the middle of the pressing plate; the area of ​​the pressing plate is not less than the area of ​​the folding screen 91. The pressing plate is used to apply uniform pressure to all parts of the folding screen 91.

[0037] See also Figures 4 - 6 In this embodiment, the pressure strip 4 is extended along the width direction of the folding screen 91, and the length of the pressure strip 4 is not less than the width of the folding screen 91. The pressure strip 4 is set at the position of the folding screen 91 that is easy to bend, and applies a certain pressure along the width direction of the folding screen 91.

[0038] In this embodiment, the height of the pressure strip 4 is 0.1-0.2 mm. If the height of the pressure strip 4 is too high, it is easy to cause the entire pressure plate to tilt, which is not conducive to applying uniform pressure to all parts of the folding screen 91. If the height of the pressure strip 4 is too low, it is impossible to ensure that the air is removed by applying pressure to eliminate the back arch.

[0039] In one embodiment, the pressure strip 4 is a silicone member having a certain hardness to apply pressure while preventing the folding screen 91 from being over-extruded and damaged.

[0040] See also Figures 4 - 6 In one embodiment, the height of the layering strip 4 gradually decreases from the middle to both sides to form an arc side surface.

[0041] Figure 7 yes Figure 3 For an enlarged view of point B, see Figure 3 and Figure 7 In this embodiment, a limit frame 5 is provided on one side of the base 1 facing the upper mold 2, and the limit frame 5 and the base 1 form a pressing area 8. The limit frame 5 is used to limit the folding screen mobile phone to avoid displacement during the pressing process.

[0042] In this embodiment, the top surface of the limiting frame 5 is arc-shaped and adapted to the edge shape of the folding screen 91. Through the arc-shaped top surface of the limiting frame 5, the folding screen 91 is limited by the limiting frame 5, and the limiting frame 5 provides certain support to the folding screen 91, achieving a better pressing effect.

[0043] In this embodiment, the pressing area 8 includes a first limiting area 81, a rotation axis cover limiting area 82 and a second limiting area 83 along the length direction of the base 1, which are adapted to the shape of the folding screen 91. According to the shape of the folding screen 91, the pressing area 8 can limit the folding screen 91.

[0044] Figure 8 This is a schematic diagram of the structure of a folding screen mobile phone. Figure 9 This is a schematic diagram of the structure of the mobile phone middle frame 92 of the folding screen mobile phone, please refer to Figures 8 - 9, in this embodiment, on the side of the base 1 facing the upper die 2, there are a first limiting rib 6 and a second limiting rib 7, and both the first limiting rib 6 and the second limiting rib 7 are located within the limiting frame 5; the limiting frame 5, the first limiting rib 6 and the base 1 enclose a first limiting area 81, and the limiting frame 5, the second limiting rib 7 and the base 1 enclose a second limiting area 83; the limiting frame 5, the first limiting rib 6, the second limiting rib 7 and the base 1 enclose a second limiting area 83; the limiting frame 5, the first limiting rib 6, the second limiting rib 7 and the base 1 enclose a rotating shaft cover limiting area 82; the height of the limiting frame 5 is higher than the height of the folding screen mobile phone, and both the first limiting rib 6 and the second limiting rib 7 are used to abut against the folding screen mobile phone. Figure 10 is a pressing schematic diagram of a folding screen mobile phone, Figure 11 is Figure 10 an enlarged view of the C position, please refer to Figures 8 - 11 , the limiting frame 5 is used to limit the folding screen mobile phone, the first limiting rib 6 abuts against the folding screen mobile phone, so that the first mounting frame 921 of the folding screen mobile phone is limited and supported, and the first limiting rib 6 abuts against the folding screen mobile phone, so that the first mounting frame 922 of the folding screen mobile phone is limited and supported; since the height of the limiting frame 5 is higher than the height of the folding screen mobile phone, during pressing, the folding screen mobile phone abuts against the limiting frame 5 and is supported, and it is in a separated state from the base 1, and the rotating shaft cover 923 of the folding screen mobile phone is accommodated in the rotating shaft cover limiting area 82. Since the rotating shaft cover 923 protrudes relative to the folding screen 91, the folding screen mobile phone is in a separated state from the base 1, leaving a protruding space for the rotating shaft cover 923 for clearance. This clearance method is applicable to mobile phones of various specifications, and can accommodate rotating shaft covers 923 of various different heights, without adjusting the rotating shaft cover limiting area 82 according to the height of the rotating shaft cover 923 of the mobile phone.

[0045] In another embodiment, the base 1 is provided with a first groove, a rotating shaft cover limiting groove and a second groove, which are respectively used to accommodate the first mounting frame 921, the rotating shaft cover 923 and the first mounting frame 922 of the folding screen mobile phone. In order to match the shape of the folding screen mobile phone, the depth of the rotating shaft cover limiting groove is greater than the depths of the first groove and the second groove.

[0046] In this embodiment, the folding screen anti-arch pressure maintaining device further includes a plurality of first magnetic members and a plurality of second magnetic members. The plurality of first magnetic members are arranged on the side of the upper die 2 facing the base 1, and the plurality of second magnetic members are arranged on the side of the base 1 facing the upper die 2; the position of each first magnetic member corresponds to the position of a second magnetic member, and each first magnetic member is magnetically fixed to a second magnetic member. The first magnetic member and the second magnetic member are magnetically fixed, so that the upper die 2 and the base 1 are firmly connected, and the pressing plate provides a stable pressure for the folding screen mobile phone.

[0047] In one embodiment, the first magnetic members are evenly distributed on the edge of the upper die 2, and the second magnetic members are evenly distributed on the edge of the base 1.

[0048] In the structure of a foldable screen mobile phone, by arranging a connecting part in the middle of the avoidance area between the foldable screen and the rotating shaft, and dotting hot melt adhesive on the connecting part, the connecting part generates a pulling force on the foldable screen, thereby avoiding the occurrence of reverse arch in the bending area of the foldable screen. In order to make the connecting part generate a stable pulling force on the foldable screen, the foldable screen anti-reverse arch pressure-holding device provided in this embodiment is used for pressure-holding. A pressure strip 4 with a height of 0.1-0.2 mm is convexly arranged on the side of the pressure-holding device 3 facing the base 1. After pressure-holding for 4 hours, it is disassembled to cure the glue, so that the pulling force between the foldable screen and the rotating shaft is stable, thereby avoiding the occurrence of reverse arch, ensuring the structural reliability of the foldable screen mobile phone and extending its service life.

[0049] The present utility model is not limited to the above embodiments. If various modifications or deformations of the present utility model do not depart from the spirit and scope of the present utility model, and if these modifications and deformations fall within the scope of the claims of the present utility model and equivalent technical scope, then the present utility model also intends to include these modifications and deformations.

Claims

1. A folding screen anti - arch pressure - maintaining device, characterized in that: It includes a base, an upper die and a pressing device; the upper die is arranged on the base, and the upper die and the base enclose a pressing area for accommodating a folding - screen mobile phone; The pressing device is located between the base and the upper die, and a pressing strip is convexly arranged on the surface of the pressing device facing the base.

2. The folding screen anti - arch pressure - maintaining device according to claim 1, characterized in that: The pressing strip is located in the middle of the pressing device and is used to correspond to the middle of the folding screen of the folding - screen mobile phone.

3. The folding screen anti - arch pressure - maintaining device according to claim 2, characterized in that: The pressing device includes a pressing plate, and the pressing strip is arranged in the middle of the pressing plate; the area of the pressing plate is not less than the area of the folding screen.

4. The folding screen anti - arch pressure - maintaining device according to claim 3, characterized in that: The pressing strip extends along the width direction of the folding screen, and the length of the pressing strip is not less than the width of the folding screen.

5. The folding screen anti - arch pressure - maintaining device according to claim 1, characterized in that: The height of the pressing strip is 0.1 - 0.2 mm.

6. The folding screen anti - arch pressure - maintaining device according to any one of claims 1 - 5, characterized in that: A limiting frame is convexly arranged on the surface of the base facing the upper die, and the limiting frame and the base form a pressing area.

7. The folding screen anti - arch pressure - maintaining device according to claim 6, characterized in that: The top surface of the limiting frame is arc - shaped and is adapted to the shape of the edge of the folding screen.

8. The folding screen anti - arch pressure - maintaining device according to claim 7, characterized in that: The pressing area sequentially includes a first limiting area adapted to the shape of the folding screen, a rotating shaft cover limiting area and a second limiting area along the length direction of the base.

9. The folding screen anti - arch pressure - maintaining device according to claim 8, characterized in that: A first limiting rib and a second limiting rib are arranged on the surface of the base facing the upper die, and both the first limiting rib and the second limiting rib are located within the limiting frame; the limiting frame, the first limiting rib and the base enclose a first limiting area, the limiting frame, the second limiting rib and the base enclose a second limiting area; the limiting frame, the first limiting rib, the second limiting rib and the base enclose a rotating shaft cover limiting area; The height of the limiting frame is higher than the height of the folding - screen mobile phone, and both the first limiting rib and the second limiting rib are used to abut against the folding - screen mobile phone.

10. The folding screen anti - arch pressure - maintaining device according to claim 1, characterized in that: It further includes a plurality of first magnetic - attraction parts and a plurality of second magnetic - attraction parts. A plurality of the first magnetic - attraction parts are arranged on the surface of the upper die facing the base, and a plurality of the second magnetic - attraction parts are arranged on the surface of the base facing the upper die; the position of each first magnetic - attraction part corresponds to the position of a second magnetic - attraction part, and each first magnetic - attraction part is magnetically fixed to each first magnetic - attraction part.

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