Anti-dazzling screen chamfering forming die

Abstract

The utility model discloses an anti-dazzling screen chamfer forming die which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a plurality of hydraulic telescopic rods, the telescopic ends of the hydraulic telescopic rods are jointly and fixedly connected with a top plate, and the lower end of the top plate is provided with a forming assembly. The supporting mechanism comprises two electric telescopic rods symmetrically installed at the upper end of the bottom plate, the telescopic ends of the two electric telescopic rods are jointly and fixedly connected with a supporting plate, a columnar groove is formed in the middle of the supporting plate, and a hollow column is fixedly connected to the inner bottom of the columnar groove; and the two guide mechanisms are both located above the bottom plate. When the chamfer forming die is specifically used, the belt material is limited by adopting negative pressure adsorption during forming, so that the damage to the belt material is reduced on the basis of ensuring the limiting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of light shielding sheet processing, in particular to a light shielding sheet chamfering forming die. Background Art

[0002] The shading sheet is used around the backlight modules of various TFT-LCDs. The function of the shading sheet is to make the light source display evenly through the shading sheet, so that the intensity of the light exposure is within the controllable range. For mobile phones among electronic products, the use of the shading sheet is to adjust and optimize the light in the electronic display to achieve ideal density and uniformity, further greatly optimizing the experience of mobile phones and electronic products. The function of the shading sheet is not only to make the display light dense and uniform. Because different materials are used, the functions of shading sheets of different materials are similar. However, according to tests by scientific research institutions, the shading sheet has functions and characteristics such as heat conduction, buffering, backlighting, waterproofing, and friction resistance. It can be widely used in electronic watches, computers, LCD TV peripheral modules, playing important roles such as heat conduction, buffering, backlighting, waterproofing, and friction resistance.

[0003] In order to make the chamfering of the shading sheet more uniform, the utility model patent with publication number CN219095352U discloses a shading sheet chamfering forming die, which relates to the field of forming die technology, including a lower die base, four support columns are fixedly installed on the top of the lower die base, an upper die base is fixedly installed between the tops of the four support columns, an upper mold plate is fixedly installed at the bottom center of the upper die base, four electric telescopic rods are fixedly inserted at the bottom of the upper mold plate, two dampers are fixedly installed at the bottom of the upper mold plate, the outer walls of the two dampers are movably sleeved with spring bodies, one side of the outer walls of the two spring bodies is fixedly mounted with support plates, and the output ends of the two dampers are fixedly sleeved with support plates;

[0004] However, during actual use, we found that the above device does not limit the profile, which makes it easy for the shading strip to be unstable during processing, thereby affecting the chamfering and punching, and easily causing the overall quality of the shading sheet to be reduced. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and to propose a light-shielding sheet chamfering forming die. When the chamfering forming die is used in practice, negative pressure adsorption is used to limit the strip during forming. In this way, damage to the strip is reduced while ensuring the limiting effect.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A sunshade chamfering forming mold comprises a base plate, the upper end of which is fixedly connected to a plurality of hydraulic telescopic rods, the telescopic ends of the plurality of hydraulic telescopic rods are commonly fixedly connected to a top plate, and a forming assembly is installed at the lower end of the top plate; a support mechanism, the support mechanism comprises two electric telescopic rods symmetrically installed on the upper end of the base plate, the telescopic ends of the two electric telescopic rods are commonly fixedly connected to the support plate, a columnar groove is provided in the middle of the support plate, and a hollow column is fixedly connected to the inner bottom of the columnar groove; and two guide mechanisms, both of which are located above the base plate.

[0008] Preferably, the guide mechanism comprises two vertical plates symmetrically fixedly connected to the upper end of the bottom plate, and a guide roller is rotatably connected between the two vertical plates.

[0009] Preferably, the two guide rollers are respectively located on the left and right sides of the support plate.

[0010] Preferably, the upper end surface height of the support plate is the same as the upper end surface height of the hollow column.

[0011] Preferably, a plurality of first adsorption ports are provided on the inner top of the hollow column, two hollow cavities are symmetrically provided in the support plate, and a plurality of second adsorption ports are provided on the inner top of the two hollow cavities.

[0012] Preferably, the inner bottom spaces of the two second adsorption ports are connected to a first connecting pipe, the inner bottom spaces of the hollow column are connected to a second connecting pipe, a negative pressure pump is installed at the upper end of the bottom plate, and the second connecting pipe and the other end of the two first connecting pipes are connected to the air inlet end of the negative pressure pump.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] During the forming process, the shading tape can be negatively adsorbed by using multiple first adsorption ports and second adsorption ports. The negative pressure suction has a good limiting effect and will not damage the shading tape, thereby avoiding damage to the tape due to limiting and improving the overall quality. In addition, when the shading tape moves, the lower end face contacts the two guide rollers but does not contact the support plate, reducing contact friction and avoiding damage to the shading tape caused by friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a chamfering forming die for a light shielding sheet proposed in the present invention;

[0016] Figure 2 for Figure 1 sectional view of

[0017] Figure 3 for Figure 2 Enlarged view of point A.

[0018] In the figure: 1 bottom plate, 2 hydraulic telescopic rod, 3 top plate, 4 forming assembly, 5 vertical plate, 6 guide roller, 7 support plate, 8 negative pressure pump, 9 electric telescopic rod, 10 hollow cavity, 11 first connecting pipe, 12 second connecting pipe, 13 hollow column, 14 first adsorption port, 15 second adsorption port. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-Figure 3 A light shield chamfering forming die includes a base plate 1, a plurality of hydraulic telescopic rods 2 are fixedly connected to the upper end of the base plate 1, the telescopic ends of the plurality of hydraulic telescopic rods 2 are fixedly connected to a top plate 3, and a forming assembly 4 is mounted on the lower end of the top plate 3. The forming assembly 4 is a prior art, specifically the rotating motor, fixed base, circular cutting blade, and chamfering gear part of the utility model patent with publication number CN219095352U;

[0021] Among them, it also includes a supporting mechanism, which includes two electric telescopic rods 9 symmetrically installed on the upper end of the base plate 1, the telescopic ends of the two electric telescopic rods 9 are commonly fixedly connected to the support plate 7, a cylindrical groove is provided in the middle of the support plate 7, and a hollow column 13 is fixedly connected to the inner bottom of the cylindrical groove. The two guide rollers 6 are respectively located on the left and right sides of the support plate 7, and a plurality of first adsorption ports 14 are provided on the inner top of the hollow column 13. Two hollow cavities 10 are symmetrically provided in the support plate 7, and a plurality of second adsorption ports 15 are provided on the inner top of the two hollow cavities 10. The inner bottom spaces of the two second adsorption ports 15 are both connected with a first connecting pipe 11, and the inner bottom spaces of the hollow columns 13 are both connected with a second connecting pipe 12. A negative pressure pump 8 is installed on the upper end of the base plate 1, and a one-way valve is installed on the air inlet end of the negative pressure pump 8 to prevent gas backflow. The second connecting pipe 12 and the other end of the two first connecting pipes 11 are commonly connected to the air inlet end of the negative pressure pump 8;

[0022] It also includes two guide mechanisms, both of which are located above the base plate 1. The guide mechanism includes two vertical plates 5 symmetrically fixedly connected to the upper end of the base plate 1. A guide roller 6 is rotatably connected between the two vertical plates 5. The two guide rollers 6 are respectively located on the left and right sides of the support plate 7. A winding and unwinding structure not shown in the figure is also provided for unwinding and winding the shading tape.

[0023] In the present invention, in actual use, the shading tape is displaced to the top of the support plate 7 through the winding and unwinding structure, and then the two electric telescopic rods 9 are started to extend, so that the support plate 7 is moved up, so that the lower end surface of the support plate 7 is in contact with the lower end surface of the shading tape. At this time, the negative pressure pump 8 is started, and the multiple first adsorption ports 14 and second adsorption ports 15 are matched to perform negative pressure adsorption and position limiting on the shading tape. Then the negative pressure pump 8 is turned off, the hydraulic telescopic rod 2 is started to retract, and the forming assembly 4 is started at the same time to perform chamfering and forming. After the forming is completed, the multiple hydraulic telescopic rods 2 are started to extend, so that the forming assembly 4 can be adjusted. The molded component 4 moves up, and then the electric telescopic rod 9 is started to retract, so that the support plate 7 moves down to the initial position. Since the shading tape is not in contact with the support plate 7 at this time, the multiple second suction ports 15 no longer contact the shading tape, so the negative pressure disappears and the limit is released. The staff removes the shading sheet formed on the hollow column 13, and then starts the winding and unwinding structure to allow the shading tape to move again. It should be noted that when the shading tape moves, the lower end face contacts the two guide rollers 6, but does not contact the support plate 7, which reduces the contact friction and avoids the damage of the shading tape caused by friction.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A light shield chamfering forming die, characterized in that: include: A bottom plate (1), the upper end of the bottom plate (1) is fixedly connected to a plurality of hydraulic telescopic rods (2), the telescopic ends of the plurality of hydraulic telescopic rods (2) are commonly fixedly connected to a top plate (3), and a molding assembly (4) is installed at the lower end of the top plate (3); A support mechanism, the support mechanism comprising two electric telescopic rods (9) symmetrically mounted on the upper end of a base plate (1), the telescopic ends of the two electric telescopic rods (9) being fixedly connected to a support plate (7), a columnar groove being provided in the middle of the support plate (7), and a hollow column (13) being fixedly connected to the inner bottom of the columnar groove; Two guide mechanisms, both of which are located above the bottom plate (1).

2. A light shielding sheet chamfering forming die according to claim 1, characterized in that: The guide mechanism comprises two vertical plates (5) symmetrically fixedly connected to the upper end of the bottom plate (1), and a guide roller (6) is rotatably connected between the two vertical plates (5).

3. The light shielding sheet chamfering forming die according to claim 2, characterized in that: The two guide rollers (6) are respectively located on the left and right sides of the support plate (7).

4. The light shielding sheet chamfering forming die according to claim 1, characterized in that: The upper end surface height of the support plate (7) is the same as the upper end surface height of the hollow column (13).

5. The light shielding sheet chamfering forming die according to claim 1, characterized in that: The inner top of the hollow column (13) is provided with a plurality of first adsorption ports (14), and two hollow cavities (10) are symmetrically arranged in the support plate (7), and the inner tops of the two hollow cavities (10) are both provided with a plurality of second adsorption ports (15).

6. The light shielding sheet chamfering forming die according to claim 5, characterized in that: The inner bottom spaces of the two second adsorption ports (15) are both connected to a first connecting pipe (11), the inner bottom spaces of the hollow column (13) are both connected to a second connecting pipe (12), a negative pressure pump (8) is installed at the upper end of the bottom plate (1), and the second connecting pipe (12) and the other end of the two first connecting pipes (11) are jointly connected to the air inlet end of the negative pressure pump (8).

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