CN207358841U - One kind grinding break bar and substrate milling apparatus - Google Patents

Abstract

It the utility model is related to display manufacturing technology field, open a kind of grinding break bar and substrate milling apparatus.Including the first grind section and the second grind section being distributed along the axis direction of the grinding break bar；First grind section includes a grinding cylinder, and the axis of the grinding cylinder is overlapped with the axis of the grinding break bar；Second grind section includes at least one grinding groove, the annular groove that each grinding groove overlaps for axis with the axis of the grinding break bar.Grinding cylinder can polish flat the irregularities of substrate edges, therefore the probability of substrate edges breakage can be reduced when the corner angle to substrate edges are polished, and then can improve easily caused in process of lapping substrate edges breakage, and then cause substrate production yield decline the problem of.

Description

One kind grinding break bar and substrate milling apparatus

Technical field

Display manufacturing technology field is the utility model is related to, more particularly to a kind of grinding break bar and substrate milling apparatus.

Background technology

In the manufacturing process of display panel, need to by cut off operation by substrate independent one by one by whole glass substrate Middle separation, the edge for the substrate after preventing cut-out from separating crack or other defect, also need to be ground process, with to point The side of substrate from after is ground, to reduce the probability that the edge of substrate produces defect.Need to use in grinding process and grind Grinding wheel is ground substrate, shown in Figure 1, and Fig. 1 is a kind of structural representation for grinding break bar commonly used in the prior art Figure, the grinding break bar are rotary structure, including 8 rough lapping grooves and 2 fine lapping grooves, during grinding process, will be cut The edge for the substrate having no progeny, which is first put into a rough lapping groove, carries out rough lapping, then the edge of the substrate after rough lapping is put into one Fine lapping is carried out in a fine lapping groove, you can complete the process of lapping to substrate.But the edge shape of the substrate due to just having cut off Shape is irregular, therefore the shape of substrate edges can not be completely corresponding with the shape of rough lapping groove, simultaneously because rough lapping groove is ground Speed is ground, the amount of grinding in the unit interval is larger, substrate edges breakage is easily caused in process of lapping, and then cause substrate Production yield decline.

Utility model content

The utility model provides a kind of grinding break bar and substrate milling apparatus, to solve grinding knife of the prior art The problem of taking turns and substrate edges breakage easily caused in process of lapping, and then causing the production yield of substrate to decline.

To achieve the above object, the utility model provides following technical solution：

One kind grinding break bar, including the first grind section and second of the axis direction distribution along the grinding break bar are ground Portion；

First grind section includes a grinding cylinder, the axis of the axis of the grinding cylinder and the grinding break bar Overlap；

Second grind section includes at least one grinding groove, and each grinding groove is axis and the axis for grinding break bar The annular groove of coincidence.

In grinding break bar provided by the utility model, the first grind section and the second grinding are being equipped with along its axis direction Portion, the first grind section include grinding cylinder, and the second grind section includes at least one grinding groove.In grinding provided by the utility model During break bar is ground substrate, the edge for cutting off the substrate after separating is ground on grinding cylinder first, After the irregularities at the edge of substrate is polished flat, then the edge of substrate is positioned in grinding groove, to substrate edges Corner angle are polished.Since grinding cylinder can polish flat the irregularities of substrate edges, to substrate edges Corner angle can reduce the probability of substrate edges breakage when being polished, and then can improve and easily cause substrate edges in process of lapping and break The problem of damaging, and then causing the production yield of substrate to decline.

Alternatively, along the axis direction of the grinding break bar, the length of first grind section is ground more than described second The length in mill portion.

Alternatively, along the axis direction of the grinding break bar, the length of the grinding cylinder is the grinding break bar institute 300-500 times of the thickness for the substrate that need to be processed.

Alternatively, along the axis direction of the grinding break bar, the length of the grinding cylinder is 6-10mm.

Alternatively, the roughness of the grinding cylinder is more than the roughness of the cell wall of each grinding groove.

Alternatively, second grind section includes the 3-5 grinding grooves being distributed along the axis direction of the grinding break bar.

Alternatively, the roughness of the cell wall of the 3-5 grinding groove is identical.

Alternatively, the roughness of the cell wall of the 3-5 grinding groove is different.

Alternatively, the radial section of each grinding groove is triangle, trapezoidal or arc.

The utility model additionally provides a kind of substrate milling apparatus, including the grinding break bar such as above-mentioned technical proposal offer.

Brief description of the drawings

Fig. 1 is a kind of structure diagram for grinding break bar commonly used in the prior art；

Fig. 2 is the structure diagram for the grinding break bar that the utility model embodiment provides；

Fig. 3 is the operation principle schematic diagram of the grinding cylinder for the grinding break bar that the utility model embodiment provides；

Fig. 4 is the operation principle schematic diagram of the grinding groove for the grinding break bar that the utility model embodiment provides.

Reference numeral：

01, rough lapping groove；02, fine lapping groove；03, substrate；10, the first grind section；

11, grind cylinder；20, the second grind section；21, grinding groove.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

A kind of grinding break bar is present embodiments provided, to solve grinding break bar of the prior art in process of lapping easily The problem of causing substrate edges damaged, and then causing the production yield of substrate to decline.

Shown in Figure 2, Fig. 2 is the structure diagram of grinding break bar provided in this embodiment, which includes edge The first grind section 10 and the second grind section 20 of its axis direction distribution；First grind section 10 includes a grinding cylinder 11, grinds The axis in grinding column face 11 is overlapped with grinding the axis of break bar；Second grind section 20 includes 3 grinding grooves, 21,3 21 edges of grinding groove The axis direction distribution of break bar is ground, each grinding groove 21 is the annular groove that axis is overlapped with grinding the axis of break bar, specifically, The cell wall of each annular groove is abradant surface.

It is shown in Figure 3 during grinding break bar provided in this embodiment is ground substrate, first will cut-out The edge of substrate 03 after separation is ground on grinding cylinder 11, and the irregularities at the edge of substrate 03 is polished flat Or after tending to be smooth, it is shown in Figure 4, then the edge of substrate 03 is positioned in grinding groove 21, to the corner angle at 03 edge of substrate Polish, you can by the edge grinding of substrate 03 into required shape.Since grinding cylinder 11 can be by 03 edge of substrate not Rule section polishes flat, therefore can reduce the general of 03 edge breakage of substrate when the corner angle to 03 edge of substrate are polished Rate, and then can improve and 03 edge breakage of substrate is easily caused in process of lapping, and then cause what the production yield of substrate 03 declined Problem.

Existing grinding break bar carries out rough lapping, each 21 feasibility study of grinding groove using rough lapping groove 21 to the edge of substrate 03 03 limited amount of substrate of mill, by taking the grinding break bar shown in Fig. 1 as an example, which includes 8 rough lapping grooves 21, with each Exemplified by rough lapping groove 21 can grind 200 substrates 03, then triturable 03 quantity of substrate of 8 rough lapping grooves 21 is 1600.And Grinding break bar provided in this embodiment carries out rough lapping using grinding cylinder 11 to 03 edge of substrate, can improve making for grinding break bar It is specifically, shown in Figure 3 with number, in process of lapping, first by grinding cylinder 11 the top part to substrate 03 Edge is polished, and after the access times of 11 the top part of grinding cylinder reach capacity, can be moved up grinding break bar necessarily Distance, using grinding cylinder 11 other parts polish 03 edge of substrate, in specific implementation repeat the process until Whole grinding cylinder 11 all arrives at the access times limit.By setting the axial length of grinding cylinder 11, then grinding can be improved The access times of break bar.Specifically, the minimum value for the distance that grinding break bar moves up every time is equal with the thickness of substrate 03, specific real Shi Zhong, to ensure the polishing effect at substrate 03 edge and improving the utilization rate of grinding cylinder 11, grind that break bar moves up every time away from From the thickness that should be slightly bigger than substrate 03, specifically, by taking the thickness of substrate 03 is 0.2mm as an example, then grind what break bar moved up every time Distance can be 0.25mm.Using the existing grinding break bar shown in Fig. 1 as contrast, 8 rough lapping grooves 21 of the grinding break bar it is whole Body axial length is generally 10mm, and grinding break bar provided in this embodiment is in the case where overall axial length is constant, due to A grinding groove 21 is added in the second milling zone, then the length of the grinding cylinder 11 of the first milling zone has subtracted compared with existing It is small, grind using the axial length of the grinding cylinder 11 of grinding break bar provided in this embodiment as 8mm and every time break bar grinding 200 Exemplified by moving up 0.25mm after a substrate 03, then number workable for the grinding cylinder 11 of grinding break bar provided in this embodiment is： 8/0.25 × 200=6400 (secondary), compared with existing grinding break bar, grinding break bar provided in this embodiment improves its use Number, service life is longer, and then can improve the production capacity of single grinding break bar, and reduces in process of lapping to grinding break bar Number is replaced, reduces production cost.

For the access times of increase grinding cylinder 11, the axial length of grinding cylinder 11 should be increased, grinding the whole of break bar In the case that body axial length is certain, in a kind of optional embodiment, along the axis direction of grinding break bar, the first grind section 10 length is more than the length of the second grind section 20, in order to make the increase of the axial length of grinding cylinder 11.Specifically, ground on edge On the axis direction of grinding wheel, the length of grinding cylinder 11 is the 300-500 of the thickness of the substrate 03 of processing needed for grinding break bar Times, specifically such as 300 times, 400 times or 500 times, the access times of cylinder 11 are ground with further increase.Due to common at present The thickness of substrate 03 is 0.2mm or so, then correspondingly, along the axis direction of grinding break bar, the length of the first grind section 10 is 6-10mm, concretely 6mm, 7mm, 8mm, 9mm, 10mm.

To improve to the grinding efficiency at 03 edge of substrate, in a kind of optional embodiment, the roughness of cylinder 11 is ground More than the roughness of the cell wall of each grinding groove 21, then at the irregular shape part at 03 edge of substrate of polishing, cylinder is ground 11 quickly can polish flat 03 edge of substrate, and then can improve grinding efficiency, and grinding groove 21 then can be to the edge of substrate 03 Carry out fine lapping.

The minimum number of the grinding groove 21 of second grind section 20 should be one, and except 3 grinding grooves 21 shown in Fig. 2 Outside embodiment, in specific implementation, the quantity of the grinding groove 21 of the second grind section 20 should be according to the grinding of the first grind section 10 The access times of cylinder 11 are configured, so that the service life of grinding groove 21 is equal with the service life for grinding cylinder 11 or connects Closely, to avoid the waste of grinding break bar is caused, specifically, the second grind section 20 includes 3-5 along the axis direction for grinding break bar The grinding groove 21 of distribution.

When the second grind section 20 has 3-5 grinding groove 21, the roughness of the side wall of multiple grinding grooves 21 can be identical Can be different, to adapt to the grinding demand of different substrates 03.

In specific implementation, according to the shape at 03 edge of substrate of required formation, the radial section of each grinding groove 21 can be Triangle, trapezoidal or arc.Shown in Figure 2 in the present embodiment, the radial section of each grinding groove 21 is trapezoidal.Need It is bright, due to having polished the part at 03 edge of substrate when being ground on grinding cylinder 11 to 03 edge of substrate, then When carrying out fine lapping to 03 edge of substrate in grinding groove 21, only the corner angle at 03 edge of substrate can be ground, it is every to reduce The milling area of a grinding groove 21, and then increase the access times of each grinding groove 21.

Based on same inventive concept, a kind of substrate milling apparatus is originally additionally provided, including as what above-described embodiment provided grinds Grinding wheel.The substrate milling apparatus produces damaged probability when can equally reduce substrate edges grinding, and can reduce grinding break bar Replacement number, its specific implementation repeats no more referring to above-mentioned implementation.

Obviously, those skilled in the art the utility model embodiment can be carried out various modification and variations without departing from The spirit and scope of the utility model.In this way, if these modifications and variations of the utility model belong to the utility model right It is required that and its within the scope of equivalent technologies, then the utility model be also intended to include these modification and variations including.

Claims (10)

1. one kind grinding break bar, it is characterised in that including along it is described grinding break bar axis direction be distributed the first grind section and Second grind section；

First grind section includes a grinding cylinder, the axis weight of the axis of the grinding cylinder and the grinding break bar Close；

Second grind section includes at least one grinding groove, and each grinding groove overlaps for axis with the axis of the grinding break bar Annular groove.

2. grinding break bar according to claim 1, it is characterised in that described along the axis direction of the grinding break bar The length of first grind section is more than the length of second grind section.

3. grinding break bar according to claim 2, it is characterised in that described along the axis direction of the grinding break bar The length for grinding cylinder is grind the thickness of the substrate of processing needed for break bar 300-500 times.

4. grinding break bar according to claim 3, it is characterised in that described along the axis direction of the grinding break bar The length for grinding cylinder is 6-10mm.

5. grinding break bar according to claim 1, it is characterised in that the roughness of the grinding cylinder is more than described each The roughness of the cell wall of grinding groove.

6. grinding break bar according to claim 1, it is characterised in that second grind section includes 3-5 and ground along described The grinding groove of the axis direction distribution of grinding wheel.

7. grinding break bar according to claim 6, it is characterised in that the roughness phase of the cell wall of the 3-5 grinding groove Together.

8. grinding break bar according to claim 6, it is characterised in that the roughness of the cell wall of the 3-5 grinding groove is not Together.

9. grinding break bar according to claim 6, it is characterised in that the radial section of each grinding groove is triangle, ladder Shape or arc.

10. a kind of substrate milling apparatus, it is characterised in that grind break bar including such as claim 1-9 any one of them.