CN101677380A - Plunger for preparing liquid crystal screen - Google Patents
Plunger for preparing liquid crystal screen Download PDFInfo
- Publication number
- CN101677380A CN101677380A CN200810196125A CN200810196125A CN101677380A CN 101677380 A CN101677380 A CN 101677380A CN 200810196125 A CN200810196125 A CN 200810196125A CN 200810196125 A CN200810196125 A CN 200810196125A CN 101677380 A CN101677380 A CN 101677380A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal screen
- plunger
- circle
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A plunger for preparing a liquid crystal screen relates to a plunger. The plunger comprises a belling punch head, the outside circle of the belling punch head is circumferentially provided with a spring blinder plate with a flat lower surface, the lower surface of the spring blinder plate is provided with at least one circle of drawing ribs, when plunger is in stamping, the drawing ribs contact with the liquid crystal screen, and the height of the drawing ribs is less than the thickness of the liquid crystal screen. The plunger of the invention arranges at least one circle of drawing ribs on the lower surface of the spring blinder plate so that when performing stamping operation, the periphery of the liquid crystal screen processing area can be separated by the drawing ribs, the suffered stamping is little and the periphery of the liquid crystal screen processing area does not generate stress to deform, thus ensuring the flatness of the liquid crystal screen, meeting the product quality requirements of the liquid crystal screen and largely increasing the product yield.
Description
Technical field
The present invention relates to a kind of punch, relate in particular to a kind of punch 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 protruding hole, 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.
Summary of the invention
The present invention is directed to 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 punch of the flatness of liquid crystal screen.
Technical scheme of the present invention is: the present invention includes the belling drift, external circumferential one circle of belling drift is provided with the plate that suppresses that lower surface is the plane, the lower surface that suppresses plate is provided with at least one circle and draws rib, suppress the plate lower surface during punch punching press and contact, draw the thickness of the height of rib less than liquid crystal screen with liquid crystal screen.
The present invention is provided with at least one circle and draws rib suppressing the plate lower 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 a structural representation of the present invention
1 is that belling drift, 2 is for suppressing plate, 3 for drawing rib among the figure;
Fig. 2 is the structural representation of liquid crystal screen
4 is liquid crystal screen among the figure;
Fig. 3 is the structural representation of the recessed film that cooperates with protruding film
Embodiment
The present invention includes belling drift 1, external circumferential one circle of belling drift 1 be provided with lower surface be the plane suppress plate 2, the lower surface that suppresses plate 2 is provided with at least one circle and draws rib 3, suppresses plate 2 lower surfaces during the punch punching press and contacts with liquid crystal screen 4, draws the thickness of the height of rib 3 less than liquid crystal screen 4.
When the present invention works, the belling drift 1 of protruding film is descending, punching press liquid crystal screen 4 is to size, the plate 2 that suppresses on the punch contacts with liquid crystal screen 4 upper surfaces, liquid crystal screen 4 is not produced vertically beats, guarantee stamping quality, being arranged on the rib 3 that draws that suppresses on the plate 2 simultaneously isolates machining area from other zone of liquid crystal screen 4, the flatness of liquid crystal screen 4 is guaranteed, the rib 3 that draws of the present invention is circle-shaped, the dead in line of its axis and belling drift 1, multi-turn is set draws rib 3 all around in order to guarantee stamping quality, can prolong suppressing plate 2 lower surfaces.
Claims (1)
1, a kind of punch of making liquid crystal screen, comprise the belling drift, it is characterized in that, external circumferential one circle of belling drift is provided with the plate that suppresses that lower surface is the plane, the lower surface that suppresses plate is provided with at least one circle and draws rib, suppress the plate lower surface during punch punching press and contact, draw the thickness of the height of rib less than liquid crystal screen with liquid crystal screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810196125A CN101677380A (en) | 2008-09-16 | 2008-09-16 | Plunger for preparing liquid crystal screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810196125A CN101677380A (en) | 2008-09-16 | 2008-09-16 | Plunger for preparing liquid crystal screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101677380A true CN101677380A (en) | 2010-03-24 |
Family
ID=42029766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810196125A Pending CN101677380A (en) | 2008-09-16 | 2008-09-16 | Plunger for preparing liquid crystal screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101677380A (en) |
-
2008
- 2008-09-16 CN CN200810196125A patent/CN101677380A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204912510U (en) | Automobile parts stamping die's side sizing die | |
| CN105522057A (en) | Automotive part mould | |
| CN204724719U (en) | Monoblock type shallow recessing, shallow drawing module backboard mould | |
| CN104384352B (en) | A kind of manufacture can the continuous stamping die of threading device antenna terminal | |
| CN102284620B (en) | Bilateral hole turnup structure of double-hole shielding cover progressive die | |
| CN203076454U (en) | Continuous stamping die for bottle cap | |
| CN204604456U (en) | A kind of die cutting die with floating location structure | |
| CN101677380A (en) | Plunger for preparing liquid crystal screen | |
| CN201274537Y (en) | Concave die for manufacturing liquid crystal screen board | |
| CN201274536Y (en) | Convex die for manufacturing liquid crystal screen board | |
| CN106345877A (en) | Sheet metal part convex hull making process and special mold | |
| CN205309094U (en) | Whole stamping forming cold -working mould of trapezoidal gauge apron | |
| CN201290143Y (en) | Mold for producing liquid crystal screen plate | |
| CN202169316U (en) | Punching and forming integrated mould | |
| CN101677378A (en) | Mould for preparing liquid crystal screen | |
| CN204892738U (en) | Auto parts proximal edge symmetry hole flanging mould | |
| CN205110545U (en) | Stamping die is used in turn -ups thickness different product processing in shirt rim | |
| CN101677379A (en) | Cavity block for preparing liquid crystal screen | |
| CN102728709A (en) | Method for machining anti-fake aluminum cover and drawing mold | |
| CN205183505U (en) | Bending angle finely tunes forming device | |
| CN105215193A (en) | The Product processing diel that shirt rim flange thickness is different and processing method | |
| CN110523844A (en) | A kind of progressive die process for stamping of tubulose thin-walled parts | |
| CN205362473U (en) | A device for auto parts are plastic in advance | |
| CN214417469U (en) | Adjustable stamping boss forming die structure | |
| CN203830502U (en) | Economical tool for shallow drawing of metal sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100324 |