CN212763829U - Cutting blade for PVB (polyvinyl butyral) interlayer film of toughened glass - Google Patents
Cutting blade for PVB (polyvinyl butyral) interlayer film of toughened glass Download PDFInfo
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- CN212763829U CN212763829U CN202021833617.9U CN202021833617U CN212763829U CN 212763829 U CN212763829 U CN 212763829U CN 202021833617 U CN202021833617 U CN 202021833617U CN 212763829 U CN212763829 U CN 212763829U
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Abstract
A cutting blade for a toughened glass PVB interlayer film has a peripheral cutting edge in the shape of more than three equilateral polygons; the cutting blade comprises a straight edge and an arc edge, wherein the arc edge is positioned at the intersection of the adjacent straight edges; when the cutting blade of the utility model cuts the PVB interlayer film, the cutting blade rotates at a high speed, the arc blade and the straight blade nearby the arc blade are used for cutting the PVB interlayer film, the cutting process is actually interrupted, namely, the contact friction time of the cutting blade and the PVB interlayer film in the cutting process is reduced, and the opportunity of generating powder scrap is reduced, thereby achieving the purpose of reducing the powder scrap generated in the cutting process; use the utility model discloses a toughened glass PVB intermediate layer film cutting blade can reduce the quantity that cutting PVB intermediate layer film in-process cuttings produced in a large number, through cooperating other clean scraps removing measures, has greatly improved laminated glass's quality, has brought good economic benefits for the enterprise.
Description
Technical Field
The utility model relates to an intermediate layer toughened glass production technical field, concretely relates to toughened glass PVB intermediate layer film cutting blade.
Background
In the existing production process of laminated toughened glass, a cutting blade of a PVB laminated film adopts a circular cutting blade; in the cutting process, the circular cutting blade rotates at a high speed, cutting feeding is carried out simultaneously, and the PVB interlayer film is cut according to a set size; however, in the cutting process of the circular cutting blade, the circular cutting blade and the PVB laminated film are always in contact and friction, a large amount of dust can be generated, if the dust is not completely treated and falls in the middle of the laminated glass, the transparency of the laminated glass can be affected, the quality of the laminated glass is reduced, and the economic benefit of enterprises is reduced, but at present, no method for thoroughly solving or improving the problem exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background technology, the utility model discloses a cutting blade for a toughened glass PVB interlayer film, the shape of the peripheral cutting edge of the cutting blade is more than three equilateral polygons; the cutting blade comprises a straight edge and an arc edge, wherein the arc edge is positioned at the intersection of the adjacent straight edges; when the cutting blade of the utility model cuts the PVB interlayer film, the cutting blade rotates at a high speed, the arc blade and the straight blade nearby the arc blade are used for cutting the PVB interlayer film, the cutting process is actually interrupted, namely, the contact friction time of the cutting blade and the PVB interlayer film in the cutting process is reduced, and the opportunity of generating powder scrap is reduced, thereby achieving the purpose of reducing the powder scrap generated in the cutting process; use the utility model discloses a toughened glass PVB intermediate layer film cutting blade can reduce the quantity that cutting PVB intermediate layer film in-process cuttings produced in a large number, through cooperating other clean scraps removing measures, has greatly improved laminated glass's quality, has brought good economic benefits for the enterprise.
In order to realize the utility model aims at, the utility model adopts the following technical scheme: a cutting blade for a PVB interlayer film of a laminated tempered glass production line is used for cutting the PVB interlayer film of the laminated tempered glass production line, the cutting blade is in a sheet shape, the shape of the peripheral cutting edge of the cutting blade is an equilateral polygon, and a mounting hole is formed in the middle of the cutting blade; the cutting edge of the equilateral polygon is used for replacing the existing circular cutting edge, when the cutting blade rotates at high speed to cut the PVB interlayer film, the cutting process is actually interrupted, namely the contact friction time of the cutting blade and the PVB interlayer film in the cutting process is reduced, so that the opportunity of generating powder scraps is reduced; the mounting hole in the middle is used for mounting and fixing the cutting blade on the high-speed rotating driving shaft.
Further, the cutting blade comprises a flat straight edge and a circular arc edge, wherein the circular arc edge is positioned at the intersection of the adjacent flat straight edges, namely the circular arc edge is naturally formed by the intersection of the flat straight edges; the number of the flat edges is more than three, in practical application, the number of the flat edges is generally selected from 3 to 6, when the number of the flat edges exceeds 6, the shape of the cutting blade begins to approach to a circular shape, the contact friction time between the cutting blade and the PVB laminated film in the cutting process is prolonged, and therefore the effect of reducing the number of the powder scraps is reduced.
Furthermore, two sides of the straight edge are symmetrical planes, and the included angle is 15-30 degrees; the symmetrical plane cutting edge is adopted to ensure that the cutting blade avoids generating additional lateral force in the cutting process so as to improve the stability of the cutting process and improve the alignment of a cutting seam; the included angle of the symmetrical planes on the two sides of the straight edge is selected to be 15-30 degrees, so that the cutting blade has smaller cutting force and higher structural strength, the specific angle selection is related to the number and the material selection of the straight edges of the cutting blade, if the number of the straight edges of the cutting blade is larger and the comprehensive mechanical property of the material is better, a smaller angle can be selected, otherwise, a larger angle is selected; intersecting planes on two sides of the adjacent straight edges to form intersecting lines, performing R-angle treatment on the intersecting lines to naturally form an arc edge, wherein the arc edge is an approximate arc, the arc angle radius of the arc edge is determined by the included angle of symmetrical planes on two sides of the straight edge and the arc radius of the intersecting lines subjected to R-angle treatment, and the R-angle radius of the intersecting lines is 15-20 mm; taking a regular triangular cutting blade as an example, the included angle of the symmetrical planes on the two sides of the straight edge is 30 degrees, the intersection line is subjected to R angle processing with the radius of 20 mm, and the approximate arc radius of the arc edge is about 6 mm.
Furthermore, the flat straight edge and the arc edge are provided with passivated arcs, and the radius of the passivated arcs is 0.05-0.1 mm; the purpose of setting up the passivation circular arc is that prevent that straight sword, circular arc sword from too sharp, can influence cutting blade's life on the contrary.
Further, mounting bosses are symmetrically arranged in the middle of the cutting blade, and mounting holes are formed in the middle of the mounting bosses; because the thickness of the cutting blade is thin, the installation lug boss is arranged to improve the rigidity of the cutting blade as a whole.
Furthermore, the cutting blade is subjected to integral quenching treatment, so that the integral rigidity and strength of the cutting blade are improved, the service performance of the cutting blade is improved, and the service life of the cutting blade is prolonged.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a cutting blade for toughened glass PVB interlayer films, the shape of the peripheral cutting edge of the cutting blade is more than three equilateral polygons; the cutting blade comprises a straight edge and an arc edge, wherein the arc edge is positioned at the intersection of the adjacent straight edges; when the cutting blade of the utility model cuts the PVB interlayer film, the cutting blade rotates at a high speed, the arc blade and the straight blade nearby the arc blade are used for cutting the PVB interlayer film, the cutting process is actually interrupted, namely, the contact friction time of the cutting blade and the PVB interlayer film in the cutting process is reduced, and the opportunity of generating powder scrap is reduced, thereby achieving the purpose of reducing the powder scrap generated in the cutting process; use the utility model discloses a toughened glass PVB intermediate layer film cutting blade can reduce the quantity that cutting PVB intermediate layer film in-process cuttings produced in a large number, through cooperating other clean scraps removing measures, has greatly improved laminated glass's quality, has brought good economic benefits for the enterprise.
Drawings
FIG. 1 is a schematic diagram of a cutting blade of a PVB laminated film for tempered glass in use;
FIG. 2 is a schematic view showing the continuous contact friction between PVB film during the cutting process with a circular blade;
FIG. 3 is an appearance view of a cutting blade of a PVB laminated film of tempered glass;
FIG. 4 is a schematic cross-sectional view of a cutting blade of a PVB laminated film for tempered glass;
FIG. 5 is an enlarged view of part A;
FIG. 6 is a schematic view showing the contact friction condition between a cutting blade and a PVB film during the cutting process of a PVB interlayer film of tempered glass;
FIG. 7 is a schematic view showing the situation that a cutting blade of a PVB interlayer film of toughened glass is separated from a PVB film in a cutting process;
FIG. 8 is a schematic external view of the embodiment.
In the figure: 1. a cutting blade; 1.1, a straight edge; 1.2, arc edge; 1.3, mounting a boss; 1.4, passivating the arc; 1.3.1, mounting holes.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A cutting blade for a PVB interlayer film of a toughened glass production line is used for cutting the PVB interlayer film of the interlayer toughened glass production line, the cutting blade 1 is in a sheet shape, the shape of the peripheral cutting edge of the cutting blade is an equilateral polygon, and a mounting hole 1.3.1 is arranged in the middle of the cutting blade; the cutting blade 1 comprises a flat straight edge 1.1 and an arc edge 1.2, wherein the arc edge 1.2 is positioned at the intersection of the adjacent flat straight edges 1.1; the number of the 1.1 straight blades is 3-6; two sides of the straight edge 1.1 are symmetrical planes, and the included angle is 15-30 degrees; intersecting planes on two sides of the adjacent straight blades 1.1 to form intersecting lines, performing R-angle treatment on the intersecting lines to naturally form arc blades 1.2, wherein the radius of the arc angle of each arc blade 1.2 is determined by the radius of the arc of the intersecting line subjected to the R-angle treatment, and the radius of the R-angle of the intersecting lines is 15-20 mm; the straight edge 1.1 and the arc edge 1.2 are provided with passivated arcs, and the radius of the passivated arcs is 0.05-0.1 mm; the middle of the cutting blade 1 is symmetrically provided with mounting bosses 1.3, and the middle of the mounting bosses 1.3 is provided with mounting holes 1.3.1; the cutting blade 1 is subjected to integral quenching treatment.
The first embodiment is as follows:
a cutting blade for a toughened glass PVB interlayer film has an equilateral triangle peripheral cutting edge shape and comprises three flat edges 1.1 and three arc edges 1.2; the included angle of the symmetrical planes on the two sides of the flat straight edge 1.1 is 30 degrees, the radius of the processing arc angle of the intersecting line formed by the intersection of the planes on the two sides of the adjacent flat straight edge 1.1 is 20 mm, the approximate radius of the arc edge 1.2 is 6 mm, and the radius of the passivated arc of the flat straight edge 1.1 and the arc edge 1.2 is 0.05 mm.
Example two:
a cutting blade for toughened glass PVB interlayer films has an equilateral hexagonal peripheral cutting edge shape and comprises six flat edges 1.1 and six circular arc edges 1.2; the included angle of the symmetrical planes on the two sides of the flat straight edge 1.1 is 20 degrees, the radius of the processing arc angle of the intersecting line formed by the intersection of the planes on the two sides of the adjacent flat straight edge 1.1 is 15 mm, the approximate radius of the arc edge 1.2 is 7 mm, and the radius of the passivated arc of the flat straight edge 1.1 and the arc edge 1.2 is 0.1 mm.
Finally, supplement the explanation, except the utility model discloses an equilateral polygon cutting blade form, also can adopt the mode of fluting on circular cutting blade to reduce the contact friction time of cutting blade and PVB intermediate layer film in the cutting process, nevertheless because of its fluting department blade processing technology is complicated, so do not record in the utility model's the claim.
The part of the utility model not detailed is prior art.
Claims (6)
1. The utility model provides a cutting blade of toughened glass PVB intermediate layer film for the cutting of intermediate layer toughened glass production line PVB intermediate layer film, characterized by: the cutting blade (1) is sheet-shaped, the shape of the peripheral cutting edge of the cutting blade is an equilateral polygon, and a mounting hole (1.3.1) is arranged in the middle of the cutting blade.
2. A cutting blade for a tempered glass PVB interlayer film as claimed in claim 1, wherein: the cutting blade (1) comprises flat straight edges (1.1) and circular arc edges (1.2), wherein the circular arc edges (1.2) are positioned at the intersection of the adjacent flat straight edges (1.1); the number of the straight blades (1.1) is more than three.
3. A cutting blade for a tempered glass PVB interlayer film as claimed in claim 2, wherein: two sides of the straight edge (1.1) are symmetrical planes, and the included angle is 15-30 degrees; the planes on the two sides of the adjacent straight blades (1.1) are intersected to form intersecting lines, R-angle processing is carried out on the intersecting lines, the arc blades (1.2) are naturally formed, the arc angle radius of the arc blades (1.2) is determined by the included angle of the symmetrical planes on the two sides of the straight blades (1.1) and the arc radius of the intersecting lines subjected to the R-angle processing, and the R-angle radius of the intersecting lines is 15-20 mm.
4. A cutting blade for a tempered glass PVB interlayer film as claimed in claim 2, wherein: the straight blade (1.1) and the arc blade (1.2) are provided with passivated arcs, and the radius of the passivated arcs is 0.05-0.1 mm.
5. A cutting blade for a tempered glass PVB interlayer film as claimed in claim 1, wherein: the middle of the cutting blade (1) is symmetrically provided with a mounting boss (1.3), and the middle of the mounting boss (1.3) is provided with a mounting hole (1.3.1).
6. A cutting blade for a tempered glass PVB interlayer film as claimed in claim 1, wherein: the cutting blade (1) is subjected to integral quenching treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833617.9U CN212763829U (en) | 2020-08-28 | 2020-08-28 | Cutting blade for PVB (polyvinyl butyral) interlayer film of toughened glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833617.9U CN212763829U (en) | 2020-08-28 | 2020-08-28 | Cutting blade for PVB (polyvinyl butyral) interlayer film of toughened glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212763829U true CN212763829U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021833617.9U Active CN212763829U (en) | 2020-08-28 | 2020-08-28 | Cutting blade for PVB (polyvinyl butyral) interlayer film of toughened glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212763829U (en) |
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2020
- 2020-08-28 CN CN202021833617.9U patent/CN212763829U/en active Active
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