阅读说明：本技术 一种u形槽铂铑合金漏板 (U-shaped groove platinum-rhodium alloy bushing ) 是由 郭振强 袁坚 王兵兵 王瑞璞 淮旭光 何聪 李诗文 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种U形槽铂铑合金漏板,属于柔性玻璃成型设备技术领域,铂铑合金漏板包括槽体,槽体的底板上开设有用来通过玻璃液的狭缝,狭缝的长度方向与槽体的长度方向相同,关键在于：所述的狭缝沿长度方向从一端到另一端分为依次衔接的第一宽度渐变缝、中间等宽缝、第二宽度渐变缝,第一宽度渐变缝和第二宽度渐变缝的宽度都是由靠近中间等宽缝的一端向另一端逐渐减小。这种中间宽、两端窄的狭缝,可以有效减薄玻璃带的边部厚度,使玻璃的有效宽度比例增大,玻璃板的外观更加平整。(The invention discloses a platinum-rhodium alloy bushing with a U-shaped groove, belonging to the technical field of flexible glass forming equipment, and the platinum-rhodium alloy bushing comprises a groove body, wherein a bottom plate of the groove body is provided with a slit for glass liquid to pass through, the length direction of the slit is the same as that of the groove body, and the key points are as follows: the slit is divided into a first width gradually-changing slit, a middle equal-width slit and a second width gradually-changing slit which are sequentially connected from one end to the other end along the length direction, and the widths of the first width gradually-changing slit and the second width gradually-changing slit are gradually reduced from one end close to the middle equal-width slit to the other end. The slit with the wide middle and the narrow two ends can effectively reduce the thickness of the edge of the glass strip, so that the effective width proportion of the glass is increased, and the appearance of the glass plate is smoother.)

1. The utility model provides a U-shaped groove platinum rhodium bushing, includes cell body (1), offers slit (2) that are used for passing through glass liquid on bottom plate (1-1) of cell body (1), and the length direction of slit (2) is the same with the length direction of cell body (1), its characterized in that: the slit (2) is divided into a first width gradually-changing seam (2-1), a middle equal-width seam (2-2) and a second width gradually-changing seam (2-3) which are sequentially connected from one end to the other end along the length direction, and the widths of the first width gradually-changing seam (2-1) and the second width gradually-changing seam (2-3) are gradually reduced from one end close to the middle equal-width seam (2-2) to the other end.

2. The U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: the lengths of the first gradual width change seam (2-1) and the second gradual width change seam (2-3) are equal to each other and are L1, the total length of the slit (2) is L, and the ratio of L1: l ═ 5-15: 100.

3. the U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: the slit (2) is positioned in the middle of the bottom plate (1-1), and the length ratio of the slit (2) to the bottom plate (1-1) is (85-95): 100.

4. the U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: the groove body (1) comprises side plates (1-2) located on two sides of the slit (2), the side plates (1-2) are divided into a first thickness gradient plate (1-3), a middle equal-thickness plate (1-4) and a second thickness gradient plate (1-5) which are sequentially connected from one end to the other end along the length direction, the thicknesses of the first thickness gradient plate (1-3) and the second thickness gradient plate (1-5) are gradually reduced from one end close to the middle equal-thickness plate (1-4) to the other end, and the outer walls of the first thickness gradient plate (1-3), the middle equal-thickness plate (1-4) and the second thickness gradient plate (1-5) are located on the same plane.

5. The U-shaped groove platinum rhodium bushing as set forth in claim 4, wherein: the thickness of the middle equal-thickness plate (1-4) is 2-4mm, and the thickness of the first thickness gradually-changing plate (1-3) is equal to that of the second thickness gradually-changing plate (1-5) and is more than or equal to 1 mm.

6. The U-shaped groove platinum rhodium bushing as set forth in claim 4, wherein: the lengths of the first thickness gradually-changing plate (1-3) and the second thickness gradually-changing plate (1-5) are equal to each other w1, the total length of the side plates (1-2) is w, w 1: w ═ 10-25: 100.

7. a U-channel platinum rhodium bushing according to claim 3, wherein: the plate root generators (3) are arranged below two ends of the slit (2), each plate root generator (3) comprises an arc-shaped guide plate (3-1) protruding towards the other end, baffles (3-2) are arranged on two sides of each arc-shaped guide plate (3-1), the baffles (3-2) and the arc-shaped guide plates (3-1) are matched to form a U-shaped structure with an opening facing the other end of the slit (2), and the inner wall of the U-shaped structure is directly contacted with the end part of a glass belt flowing out of the slit (2) to form a plate root guide surface.

8. The U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: chamfers (1-6) are arranged at the bottoms of the groove bodies (1) positioned at the two sides of the slit (2); or the wall thickness b1 of the groove body (1) at the outlet end of the slit (2) is reduced to 0.1-0.2 mm.

9. The U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: the outer walls of the two ends of the tank body (1) are provided with electrode ears (4), and the electrode ears (4) are connected with the transformer by means of soft copper bars or hard copper bars.

10. The U-shaped channel platinum rhodium bushing as set forth in claim 1, wherein: the platinum accounts for 80-90% of the weight of the plate of the platinum-rhodium alloy bushing, and the balance is rhodium.

Technical Field

The invention belongs to the technical field of flexible glass forming equipment, and relates to a bushing, in particular to a platinum-rhodium alloy bushing with a U-shaped groove.

Background

The flexible glass is ultrathin glass with the thickness of less than or equal to 0.1mm and capable of realizing a roll-to-roll process. Flexible glass can be bent while having the hardness, transparency, heat resistance, electrical insulation, gas impermeability, and mechanical and chemical properties of glass that are stable in oxidizing and light environments. The high temperature resistance of the flexible glass can meet the requirement that part of optoelectronic devices need to be subjected to high temperature treatment, and the outstanding bending property and winding property of the flexible glass enable the continuous roll-to-roll printing process to be adopted to prepare various optoelectronic devices, so that the flexible glass is a preferable base material of the future flexible printing optoelectronic devices and can possibly cause the essential revolution and leap of the flexible display and solar cell industries.

Several glass companies around the world have exhibited flexible glass samples and have formed a technical monopoly. In recent years, China has developed a lot in the aspect of ultrathin plate glass, but research and development of flexible glass are not carried out yet, independent innovation is needed, and research and development force is rapidly put into and increased.

The current methods for producing flexible glass include float process, overflow process, secondary drawing process and slit down-draw process. In the float process, the glass liquid floating on the tin liquid is thinned by adopting an edge roller, and due to the action of surface tension, the difficulty of thinning the glass in the horizontal direction is very high. The overflow method is that homogeneous glass liquid flows into an overflow groove, overflows from two sides and flows down along side bricks to be converged into a glass plate, the thickness of the plate root of the overflow method is as high as 1cm, and the plate root is difficult to be thinned to be less than 0.1mm by a drawing device. The secondary drawing method is to reheat the glass original sheet and draw and thin the glass by a drawing roller, and the secondary drawing method can draw flexible glass with the thickness less than 0.1mm, but the secondary drawing method cannot realize continuous production due to process limitation, and is difficult to realize industrialization. The slit down-draw method is characterized in that homogeneous glass liquid melted in a forming chamber is heated by a platinum-rhodium alloy bushing plate and then flows out of a slit, and then a glass plate is drawn under the control of a drawing roller.

In the slit down-draw method experiment process, the unreasonable structural design of the platinum-rhodium bushing plate is found to cause the effective width proportion of the glass to be lower.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention designs the U-shaped groove platinum rhodium bushing, which can effectively reduce the thickness of the edge of a glass belt, increase the effective width proportion of glass and enable the appearance of a glass plate to be smoother.

The invention adopts the specific technical scheme that: the utility model provides a U-shaped groove platinum rhodium bushing, includes the cell body, offers the slit that is used for passing through the glass liquid on the bottom plate of cell body, and the length direction of slit is the same with the length direction of cell body, and the key lies in: the slit is divided into a first width gradually-changing slit, a middle equal-width slit and a second width gradually-changing slit which are sequentially connected from one end to the other end along the length direction, and the widths of the first width gradually-changing slit and the second width gradually-changing slit are gradually reduced from one end close to the middle equal-width slit to the other end.

The lengths of the first and second gradual width slits are equal to each other and are L1, the total slit length is L, L1: l ═ 5-15: 100.

the slit is positioned in the middle of the bottom plate, and the length ratio of the slit to the bottom plate is (85-95): 100.

the slot body including the curb plate that is located the slit both sides, the curb plate divide into the first thickness gradual change board, middle equal thickness board, the second thickness gradual change board that link up in proper order from one end to the other end along length direction, first thickness gradual change board and second thickness gradual change board all reduce to the other end by the one end that is close to middle equal thickness board gradually, the outer wall of first thickness gradual change board, middle equal thickness board, second thickness gradual change board is in on the coplanar.

The thickness of the middle equal-thickness plate is 2-4mm, and the thickness of the first thickness gradually-changing plate is equal to that of the second thickness gradually-changing plate and is more than or equal to 1 mm.

The lengths of the first thickness gradually-changing plate and the second thickness gradually-changing plate are equal to each other and are w1, the total length of the side plates is w, w 1: w ═ 10-25: 100.

all be provided with the plate root generater in the below at slit both ends, the plate root generater of each end all is including the bellied arc guide plate to the other end, and the both sides of arc guide plate all are provided with the baffle, and the baffle forms the U-shaped structure of opening towards the slit other end with the cooperation of arc guide plate, and the inner wall of U-shaped structure directly forms the plate root water conservancy diversion face with the contact of the glass area tip that flows out by the slit.

Chamfers are arranged at the bottoms of the groove bodies positioned at the two sides of the slit; alternatively, the wall thickness b1 of the slot at the outlet end of the slit is reduced to 0.1-0.2 mm.

The outer walls of the two ends of the tank body are provided with electrode ears, and the electrode ears are connected with the transformer by means of soft copper bars or hard copper bars.

The platinum accounts for 80-90% of the weight of the plate of the platinum-rhodium alloy bushing, and the balance is rhodium.

The invention has the beneficial effects that: divide into the first width gradual change seam, middle isopachous seam, the second width gradual change seam that link up in proper order along length direction from one end to the other end with the slit, the width of first width gradual change seam and second width gradual change seam all reduces to the other end gradually by the one end that is close to middle isopachous seam, and the width of this kind of middle width, the narrow slit in both ends can effectively attenuate the limit portion thickness in glass area, makes the effective width proportion increase of glass, and the outward appearance of glass board is more level and more smooth.

The invention adopts the design of the side plates with thick middle and thin two sides, so that the heating power at the two ends of the bushing plate is higher, and the phenomenon that the temperature of glass liquid in the bushing plate is high in the middle and low at the two ends can be effectively prevented.

The invention arranges the chamfer angle at the bottom of the groove body, or reduces the thickness of the bottom of the groove body, thereby effectively preventing the glass stripe phenomenon.

The invention reasonably designs the proportion of the length of the slit and the length of the bushing plate, and can effectively prevent the glass from gasping with the cooperation of the slit and the arc-shaped plate root generator.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the slit structure of the present invention.

Fig. 3 is a schematic structural view of a side plate according to the present invention.

Fig. 4 is a schematic structural diagram of the plate root generator in the present invention.

Fig. 5 is a schematic view of a connection structure of the plate root generator and the trough body in the invention.

FIG. 6 is a first structural view of the trough of the present invention.

FIG. 7 is a second structural view of the trough of the present invention.

Fig. 8 is a schematic structural view of the present invention in a specific use.

In the attached drawings, 1 represents a trough body, 1-1 represents a bottom plate, 1-2 represents a side plate, 1-3 represents a first thickness gradient plate, 1-4 represents a middle equal thickness plate, 1-5 represents a second thickness gradient plate, 1-6 represents a chamfer, 1-7 represents a plug, 2 represents a slit, 3 represents a plate root generator, 3-1 represents an arc-shaped guide plate, 3-2 represents a baffle, 4 represents an electrode ear, 5 represents a positioning plate, 6 represents a forming chamber, 7 represents a glass belt, 8 represents a drawing roller, and 9 represents a guide roller.

Detailed Description

The invention is described in detail below with reference to the following figures and specific embodiments: