CN109177122B - Hot bending forming method and forming device for organic glass - Google Patents
Hot bending forming method and forming device for organic glass Download PDFInfo
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- CN109177122B CN109177122B CN201810753355.6A CN201810753355A CN109177122B CN 109177122 B CN109177122 B CN 109177122B CN 201810753355 A CN201810753355 A CN 201810753355A CN 109177122 B CN109177122 B CN 109177122B
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- organic glass
- bending
- softened
- infrared heating
- treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
Abstract
The invention discloses a hot bending forming method and a device for organic glass, which comprises the following steps: s1, providing a flat organic glass; s2, moving the organic glass to the position below the infrared heating pipe, and heating and softening the organic glass; s3, placing the organic glass after being heated and softened in a bending clamp for forming to obtain 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a bulge is arranged between every two adjacent grooves; and two ends of the organic glass after being heated and softened are respectively embedded into the grooves. According to the invention, the organic glass is heated and softened by adopting the infrared heating pipe, and the heated and softened organic glass is placed in the specific bending clamp for forming to form the 3D organic glass. The surface quality of the organic glass after forming is good, the yield is high, the force does not need to be controlled during bending, the bending speed is high, and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of hot-bending organic glass products, in particular to a hot-bending forming method and a forming device for organic glass.
Background
Methyl methacrylate, commonly known as organic glass, has excellent light transmission, can transmit more than 92 percent of sunlight, has higher mechanical strength, excellent heat resistance and cold resistance, corrosion resistance, good insulating property, stable size and easy forming, and has wide application in the fields of car lamps, instrument parts, optical lenses, decorative gifts, advertising lamp boxes and the like. The organic glass is softer than inorganic glass, and the same thickness can be folded and wound in an enlarged angle, so that the 3D organic glass after being thermally bent can meet larger R angle tolerance or arch height tolerance.
In the past, a method for bending a flat organic glass includes: the flat organic glass is cut into a predetermined size and shape, placed on a bending mold in a heating furnace provided in an atmospheric environment, and heated to a softening temperature of the organic glass plate that can be bent, whereby the flat organic glass is deformed into an outer shape following the shape of the bending mold by its own weight or a weight loaded on the flat organic glass. However, the above method has the following disadvantages: (1) because the surface of the bending die is contacted with the organic glass, the surface quality of the formed organic glass is poor, and what is on the bending die can be projected to the surface of the organic glass, so that the subsequent treatment work is heavy; (2) the hot bending is carried out by using a heating furnace and a fine bending die, and the cost is very high.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a hot bending forming method and a forming device for organic glass.
The technical problem to be solved by the invention is realized by the following technical scheme:
a hot bending forming method of organic glass comprises the following steps:
s1, providing a flat organic glass;
s2, moving the organic glass to a position below the infrared heating pipe by a preset distance, and heating and softening the organic glass;
s3, placing the organic glass after being heated and softened in a bending clamp for forming to obtain 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a bulge is arranged between every two adjacent grooves; and two ends of the organic glass after being heated and softened are respectively embedded into the grooves.
Further, the bending clamp is made of a bakelite plate.
The luminous heating device is a plurality of far infrared heating pipes arranged side by side
Further, the heating and softening time in step S2 is 25-35 min.
Further, before step S2, the method further includes: and carrying out surface treatment on the organic glass.
Further, the surface treatment comprises one or more of hardening treatment, anti-glare treatment, anti-reflection treatment and anti-fingerprint treatment.
The invention also provides a hot bending forming device for organic glass, which comprises:
an infrared heating tube for generating a high temperature required to soften the organic glass;
the bending clamp is arranged below the infrared heating pipe and used for fixing the softened organic glass to form 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a protrusion is arranged between every two adjacent grooves.
The invention has the following beneficial effects:
according to the invention, the organic glass is heated and softened by adopting the infrared heating pipe, and the heated and softened organic glass is placed in the specific bending clamp for forming to form the 3D organic glass. In the invention, only two ends of the organic glass are contacted with the bending clamp, so that the formed organic glass has good surface quality and high yield, and the bending speed and the efficiency are high without controlling the force during bending; the two ends of the organic glass are embedded into different grooves, so that the 3D organic glass with different specifications is obtained, and the universality is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention.
In the figure: 1. infrared heating pipe, 2, the anchor clamps of bending, 3, organic glass.
Detailed Description
The present invention will be described in detail with reference to examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
Example 1
A hot bending forming method of organic glass comprises the following steps:
s1, providing a flat organic glass;
s2, moving the organic glass to a position below the infrared heating pipe by a preset distance, and heating and softening the organic glass;
s3, placing the organic glass after being heated and softened in a bending clamp for forming to obtain 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a bulge is arranged between every two adjacent grooves; and two ends of the organic glass after being heated and softened are respectively embedded into the grooves.
The bending clamp disclosed by the invention is simple in structure, and the two ends of the organic glass after being heated and softened are respectively embedded into the grooves of the bending clamp, so that the organic glass can be bent. Only two ends of the organic glass are contacted with the bending clamp, the surface quality of the formed organic glass is good, the yield is high, force does not need to be controlled during bending, the bending speed is high, and the efficiency is high; the two ends of the organic glass are embedded into different grooves, so that the 3D organic glass with different specifications is obtained, and the universality is high.
The bending clamp is preferably made of bakelite plates. According to the invention, the bakelite plate is used as a material of the bending clamp, so that the manufacturing cost of the clamp is low, and the bakelite plate can not be bonded with softened organic glass contacted with the bending clamp, thereby being beneficial to improving the surface quality of the formed organic glass.
It should be noted that the infrared heating pipe may be one infrared heating pipe, or may be a plurality of infrared heating pipes arranged side by side.
In the invention, the infrared heating pipe and the organic glass are arranged in parallel.
In the invention, the infrared heating pipe is used as the heater, and the heating furnace has the characteristics of excellent quality, high thermal efficiency, quick temperature rise, energy and electricity conservation, long service life and the like, and is a green and safe heating mode compared with the existing heating furnace.
In the invention, the heating time is controlled by the temperature of the infrared heating pipe and the distance between the infrared heating pipe and the organic glass, and generally, the shorter the distance is, the higher the temperature is, the shorter the time for heating and softening the organic glass is. The heating softening time, the heating temperature and the distance between the heating pipe and the organic glass are not particularly limited, and the organic glass can be heated and softened. Preferably, the time for heat softening in step S2 is 25-35min, and more preferably, the time for heat softening is 30 min.
Before step S2, the method further includes: and carrying out surface treatment on the organic glass, wherein the surface treatment comprises one or more of hardening treatment, anti-dazzle treatment, anti-reflection treatment and anti-fingerprint treatment. Through surface treatment, the 3D organic glass obtained by molding can also have one or more functions of hardening, anti-glare, anti-fouling and anti-reflection functions.
The hardening process may be, but is not limited to, applying a hardening agent cured by UV to the surface of the organic glass to form a hardened layer.
Glare is a poor lighting phenomenon, when the brightness of an external light source is extremely high or the brightness difference between a background and a display screen is large, glare is generated, visual discomfort can be caused when a consumer uses the anti-glare lamp, and the visual discomfort in use can be avoided through anti-glare treatment. The anti-glare treatment may be, but is not limited to, etching the surface of the organic glass to form an uneven shape on the surface, so that the surface is changed from specular reflection to diffuse reflection, thereby having an anti-glare effect.
The anti-reflection treatment can improve the transmittance of the product and reduce the external reflection. Specifically, the anti-reflection treatment refers to forming an anti-reflection film on the surface of the organic glass through a coating process. The antireflection film can enable light rays to generate multi-beam interference in the film by matching the refractive index and the thickness of the base material, so that the light rays destructively interfere on the upper surface of the antireflection film and constructively interfere on the lower surface of the antireflection film, and the purpose of antireflection is achieved.
The anti-fingerprint treatment is to prevent pollutants from being easily attached to the surface of the product, so that the anti-fingerprint treatment has the effects of fingerprint prevention (grease on hands of people) and oil stain prevention. Specifically, the anti-fingerprint treatment is to form an anti-fingerprint layer on the surface of the organic glass through a coating process. The anti-fingerprint layer is made of hydrophobic and oleophobic groups, wherein the hydrophobic and oleophobic groups reduce the surface energy of the organic glass surface, so that the organic glass surface has high-efficiency waterproof performance and oil-proof performance. When water stains or oil stains contact the surface of the organic glass, the stains can be easily cleaned due to the lower surface energy of the organic glass surface, and an antifouling function is achieved.
In the invention, the surface treatment is firstly carried out on the flat organic glass, so that the surface of the flat organic glass has one or more functions of a hardening function, an anti-dazzle function, an antifouling function and an anti-reflection function, and then the organic glass is bent, so that the 3D organic glass with uniform hardening effect, anti-dazzle effect, antifouling effect and anti-reflection function is formed. The problems of uneven hardening effect, anti-glare effect, anti-fouling effect and anti-reflection effect directly formed on the 3D organic glass in the prior art are solved.
Example 2
Referring to fig. 1, a device for hot bending organic glass includes:
an infrared heating tube for generating a high temperature required to soften the organic glass;
the bending clamp is arranged below the infrared heating pipe and used for fixing the softened organic glass to form 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a protrusion is arranged between every two adjacent grooves.
The organic glass comprises an organic glass body and is characterized in that a functional layer is arranged on the surface of the organic glass body, and the functional layer comprises one or more of a hardening layer, an anti-glare layer, an anti-reflection film and an anti-fingerprint layer.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (6)
1. A hot bending forming method of organic glass comprises the following steps:
s1, providing a flat organic glass;
s2, moving the organic glass to a position below the infrared heating pipe by a preset distance, and heating and softening the organic glass; the infrared heating pipe is used for generating high temperature required for softening the organic glass;
s3, placing the organic glass after being heated and softened in a bending clamp for forming to obtain 3D organic glass; the bending clamp is arranged below the infrared heating pipe and used for fixing the softened organic glass to form 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a bulge is arranged between every two adjacent grooves; and two ends of the organic glass after being heated and softened are respectively embedded into the grooves.
2. The hot roll forming method according to claim 1, wherein the time for heat softening in step S2 is 25 to 35 min.
3. A method of hot bend forming according to claim 1, wherein the bending jig is made of bakelite.
4. The hot roll forming method according to claim 1, further comprising, before step S2: and carrying out surface treatment on the organic glass.
5. The method of hot roll forming according to claim 4, wherein the surface treatment comprises one or more of a hardening treatment, an anti-glare treatment, an anti-reflection treatment, and an anti-fingerprint treatment.
6. A device for hot-bending and forming organic glass, comprising:
an infrared heating tube for generating a high temperature required to soften the organic glass;
the bending clamp is arranged below the infrared heating pipe and used for fixing the softened organic glass to form 3D organic glass; the bending fixture comprises a fixture body in a plate-shaped structure, a plurality of grooves distributed in an array mode are formed in the upper surface of the fixture body, and a protrusion is arranged between every two adjacent grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753355.6A CN109177122B (en) | 2018-07-10 | 2018-07-10 | Hot bending forming method and forming device for organic glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753355.6A CN109177122B (en) | 2018-07-10 | 2018-07-10 | Hot bending forming method and forming device for organic glass |
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| Publication Number | Publication Date |
|---|---|
| CN109177122A CN109177122A (en) | 2019-01-11 |
| CN109177122B true CN109177122B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810753355.6A Active CN109177122B (en) | 2018-07-10 | 2018-07-10 | Hot bending forming method and forming device for organic glass |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086968B (en) * | 2019-04-15 | 2020-10-16 | 维沃移动通信有限公司 | Camera module, preparation method of front camera lampshade and terminal equipment |
| CN111844698A (en) * | 2020-08-03 | 2020-10-30 | 江苏后羿航空工业有限公司 | Method for hot bending and forming organic glass |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01286819A (en) * | 1988-05-13 | 1989-11-17 | Nippon Alum Mfg Co Ltd | Bend forming method of cover for wall surface guard |
| CN202943873U (en) * | 2012-12-12 | 2013-05-22 | 者渝芸 | Organic plate bending device |
| CN203063105U (en) * | 2012-12-27 | 2013-07-17 | 昆山艾诺美航天材料有限公司 | Assistant mould for pre-forming aerial organic glass |
| CN106827477A (en) * | 2017-03-28 | 2017-06-13 | 桂林医学院 | The device of lucite hot bending folding |
| CN206749027U (en) * | 2017-05-02 | 2017-12-15 | 海门市钢鑫汽车配件有限公司 | A kind of flexible sheet Bending Mould |
| CN207327580U (en) * | 2017-10-26 | 2018-05-08 | 戚建平 | Bender for plastic sheets |
| CN107971370A (en) * | 2017-11-27 | 2018-05-01 | 张炜 | A kind of portable manual bender |
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