CN201274537Y

CN201274537Y - Concave die for manufacturing liquid crystal screen board

Info

Publication number: CN201274537Y
Application number: CNU2008201869103U
Authority: CN
Inventors: 王新勇
Original assignee: YANGZHOU GUANGLIN ELECTRONICS CO Ltd
Current assignee: YANGZHOU GUANGLIN ELECTRONICS CO Ltd
Priority date: 2008-09-16
Filing date: 2008-09-16
Publication date: 2009-07-15
Anticipated expiration: 2018-09-16

Abstract

The utility model relates to a female mould for manufacturing a liquid crystal display panel, and relates to a female mould which is provided with a mould orifice that is matched with the male mould, wherein, the upper surface of the female mould is provided with at least one circle of drawing ribs that are arranged at the outer side of the mould orifice, and the height of the drawing rib is smaller than the thickness of the liquid crystal display panel. For the upper surface of the female mould is provided with at least one circle of drawing ribs that are arranged at the outer side of the mould orifice, when performing the punching operation, the periphery of the processed area of the liquid crystal display panel is isolated by the drawing ribs, so that the liquid crystal display panel is affected small punching stress, and the periphery of the processed area of the liquid crystal display panel is free from the deformation, thereby ensuring the planeness of the liquid crystal display panel, and ensuring that the liquid crystal display panel conforms to the quality requirement of the product, and greatly improving the rate of the finished product.

Description

Make the die of liquid crystal screen

Technical field

The utility model relates to a kind of die, relates in particular to a kind of die of making liquid crystal screen.

Background technology

Liquid crystal screen is the strutting piece that is used for fixing various circuit boards and components and parts in the LCD TV, its flatness is had relatively high expectations, punch process is adopted in the processing of liquid crystal screen now, under the effect of mould, most of material of liquid crystal screen machining area is subjected to the effect of biaxial stress, tangentially with vertically both direction generation elongation strain, make the attenuation of machining area material thickness, it is big that surface area becomes, form satisfactory pit, but in the stamping press process, inevitably be affected simultaneously around the liquid crystal screen machining area and deform, make the liquid crystal screen plane be subjected to bending like this, flatness is difficult to be guaranteed, the defect rate height causes production cost to increase substantially.

The utility model content

The utility model is at above-mentioned defective, purpose be to provide a kind of can make the liquid crystal screen machining area around influenced by punching press little, thereby can improve the die of the flatness of liquid crystal screen.

The technical solution of the utility model is: the utility model is provided with the die orifice that cooperates with punch, is provided with the rib that draws that a circle is in the die orifice outside on the die upper surface at least, draws the thickness of the height of rib less than liquid crystal screen.

The utility model is provided with at least one circle that is in the die orifice outside and draws rib on the die upper surface, like this when carrying out stamping press, being drawn rib around the liquid crystal screen machining area cuts off, make it be subjected to stamping press minimum, the liquid crystal screen machining area does not produce stress all around and is out of shape, guaranteed the flatness of liquid crystal screen, made it to meet the product quality requirement, the finished product rate increases substantially.

Description of drawings

Fig. 1 is the protruding membrane structure schematic diagram that cooperates with recessed film

1 is that belling drift, 2 is for suppressing plate among the figure;

Fig. 2 is the structural representation of liquid crystal screen

3 is liquid crystal screen among the figure;

Fig. 3 is a structural representation of the present utility model

4 for drawing rib, 5 for recessed film among the figure.

Embodiment

The utility model is provided with the die orifice that cooperates with punch, and what be provided with at least on die 5 upper surfaces that a circle is in the die orifice outside draws rib 4, draws the thickness of the height of rib 4 less than liquid crystal screen 3.

During the utility model work, the belling drift 1 of protruding film is descending, punching press liquid crystal screen 3 is to size, the plate 2 that suppresses on the punch contacts with liquid crystal screen 3 upper surfaces, liquid crystal screen 3 is not produced vertically beats, guarantee stamping quality, the rib 4 that draws that is arranged on simultaneously on the die 5 isolates machining area from other zone of liquid crystal screen 3, reduce the impulse force of stamping press to the non-machining area in the liquid crystal screen 3, the flatness of liquid crystal screen 3 is guaranteed, and the rib 4 that draws of the present utility model is circle-shaped, the dead in line of its axis and die 5 die orifices, for guaranteeing stamping quality, multi-turn is set draws rib 4 all around can to prolong die 5 upper surfaces.

Claims

1, makes the die of liquid crystal screen, be provided with the die orifice that cooperates with punch, it is characterized in that, be provided with the rib that draws that a circle is in the die orifice outside on the die upper surface at least, draw the thickness of the height of rib less than liquid crystal screen.