CN109336372A - A kind of processing method of windshield - Google Patents
A kind of processing method of windshield Download PDFInfo
- Publication number
- CN109336372A CN109336372A CN201811269577.7A CN201811269577A CN109336372A CN 109336372 A CN109336372 A CN 109336372A CN 201811269577 A CN201811269577 A CN 201811269577A CN 109336372 A CN109336372 A CN 109336372A
- Authority
- CN
- China
- Prior art keywords
- windshield
- bent
- lower die
- convex surface
- windshield 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
Abstract
The processing method that the present invention discloses a kind of windshield, including pretreatment, form and anneal and etc., in forming step, bending windshield is carried out using the flexure plane in the adjustable convex surface cooperation lower die of radian in upper mold, and heating system is provided on flexure plane, emphasis heating is carried out using the heating system region big to windshield Curvature varying, so that the soft formation effect of this part is greater than the region of other radius of curvature, improve the efficiency of bending, so that entire upper die and lower die are easier for entire windshield to be folded into the shape of needs, the strength problem of entire glass is kept simultaneously；In addition, effectively eliminating windshield generated stress after bending also using annealing stage by stage, the problem of later period stress after molding is concentrated, product is caused to be broken is reduced.
Description
Technical field
The present invention relates to technical field of glass materials more particularly to a kind of processing methods of windshield.
Background technique
The development of modern ships external form and the development of glass technology are closely bound up.Especially the front windshield of yacht uses
Single-piece is bent windshield, has abandoned the windshield of plane.The windshield generally all does the big of integral width formula
Curved face type has certain radian up and down, some also need to agree with the shape of yacht, has continuous curve surface.This curved surface
No matter glass from process or from the point of view of the cooperation of assembly, is all a kind of product that technical requirements are very high.Existing market
For upper ordinary windscreen preparation process there are product bubble is more, chemical property is unstable, and bending part stress is concentrated, and the later period is easy
Many defects such as fracture.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of easy to process, good forming effect, structure are steady
A kind of processing method of fixed windshield.
The technical solution adopted by the present invention to solve the technical problems are as follows:
A kind of processing method of windshield, comprising:
Molding windshield plate to be bent is carried out pre-cleaning and cuts to predetermined size by step 1；
Step 2 prepares glass bending molding equipment, including the preheating chamber set gradually and annealing chamber, preheating chamber and annealing
The molding die that can be slided therebetween is provided between room, molding die includes upper die and lower die, is provided in lower die curved
Curved surface, flexure plane, which is located at, is connected with heating system, the convex surface in engagement flex face is provided in upper mold, the radian on convex surface can gradually become
Greatly, after upper die and lower die molding, flexure plane can cooperate convex surface to carry out bending molding windshield plate to be bent；
The windshield plate to be bent of well cutting in step 1 is sent to preheating chamber and preheats by step 3, preheating temperature
Degree is 180~250 DEG C, preheating time 10-15min, so that windshield plate to be bent softens；
Molding die is put into preheating chamber by step 4, and the windshield plate to be bent softened in step 3 is put into
Onto lower die, preheating room temperature is adjusted between 200~250 DEG C；Upper mold is slowly molded with lower die, while the radian on convex surface is gradually
Become larger, convex surface outwardly protrudes and gradually press to the windshield plate to be bent of softening the flexure plane in lower die, in lower die
Windshield plate to be bent is opened and heated to heating system, and heating temperature is 240~270 DEG C；Upper mold and lower die molding are completed
Afterwards, outwardly convex is continued on convex surface, until windshield plate to be bent is pressed against flexure plane by convex surface completely, and keeps fitting shape
State 1-2min；For convex surface retraction until convex surface is kept completely separate with flexure plane, convex surface is raised again until by cowl to be bent
Material is pressed against flexure plane until fitting completely, repeats 2~3 times aforesaid operations, until windshield plate to be bent is formed completely；
Step 5 will be bent qualitative windshield plate and be sent into annealing together with molding die in step 4
Room, and anneal by 20~50 DEG C/h of rate, the annealing rate of heating system is 20~40 DEG C/h；To cowl
The surface temperature of material reaches 40~60 DEG C, and the temperature of heating system is also after 40~60 DEG C, and upper die and lower die die sinking is taken out
Curved windshield plate is completed, the bending of windshield is completed.
As an improvement of the above technical solution, air bag is provided in step 2 in upper mold, convex surface is arranged in air bag and flexure plane
The side of cooperation, air bag are connected with hot gas room by regulating valve, and hot gas room can convey hot gas, hot gas by regulating valve into air bag
Temperature is controlled by hot gas room.
As an improvement of the above technical solution, the heating system in step 2 is provided with the heating tube being embedded in flexure plane
Road, heating pipe are connect by control valve with hot gas room, are heated pipeline close to the side of flexure plane working face and are provided with fumarole,
Heating pipeline sprays hot gas to the windshield plate on flexure plane by fumarole and heats.
As an improvement of the above technical solution, step 4 can also be the cowl to be bent that will soften in step 3
Material is put into lower die, and the radian on convex surface increases to consistent with the radian of flexure plane, and upper mold is slowly molded with lower die, and convex surface is outside
It protrudes and the windshield plate to be bent of softening is gradually pressed into the flexure plane in lower die, the heating system in lower die is opened simultaneously
Windshield plate to be bent is heated, heating temperature is 240~270 DEG C；After the completion of upper mold and lower die molding, convex surface will be to be bent
Windshield plate is pressed against flexure plane completely, and keeps fit-state 1-2min；Upper die and lower die die sinking, convex surface and flexure plane
Separation, upper mold mold again with lower die molding, repeat 2~3 times aforesaid operations, until windshield plate to be bent is completely fixed
Type.
As an improvement of the above technical solution, further include step 6, by the windshield plate of brake forming according to preset
Specification progress is secondary to be cut, and corrects seamed edge.
The beneficial effects of the present invention are as follows:
The processing method of this windshield is carried out curved using the flexure plane in the adjustable convex surface cooperation lower die of radian in upper mold
Windshield is rolled over, and is provided with heating system on flexure plane, utilizes the heating system region big to windshield Curvature varying
Emphasis heating is carried out, so that the soft formation effect of this part is greater than the region of other radius of curvature, the efficiency of bending is improved, makes
It obtains entire upper die and lower die to be easier for entire windshield to be folded into the shape of needs, while the intensity of entire glass being kept to ask
Topic；In addition, windshield generated stress after bending is effectively eliminated also using annealing stage by stage, after reducing later period molding
Stress concentrate, the problem of causing product to be broken.
Specific embodiment
A kind of processing method of windshield of the invention, comprising:
Molding windshield plate to be bent is carried out pre-cleaning and cuts to predetermined size by step 1；
Step 2 prepares glass bending molding equipment, including the preheating chamber set gradually and annealing chamber, preheating chamber and annealing
The molding die that can be slided therebetween is provided between room, molding die includes upper die and lower die, is provided in lower die curved
Curved surface, flexure plane, which is located at, is connected with heating system, the convex surface in engagement flex face is provided in upper mold, the radian on convex surface can gradually become
Greatly, after upper die and lower die molding, flexure plane can cooperate convex surface to carry out bending molding windshield plate to be bent；
The windshield plate to be bent of well cutting in step 1 is sent to preheating chamber and preheats by step 3, preheating temperature
Degree is 180~250 DEG C, preheating time 10-15min, so that windshield plate to be bent softens；
Molding die is put into preheating chamber by step 4, and the windshield plate to be bent softened in step 3 is put into
Onto lower die, preheating room temperature is adjusted between 200~250 DEG C；Upper mold is slowly molded with lower die, while the radian on convex surface is gradually
Become larger, convex surface outwardly protrudes and gradually press to the windshield plate to be bent of softening the flexure plane in lower die, in lower die
Windshield plate to be bent is opened and heated to heating system, and heating temperature is 240~270 DEG C；Upper mold and lower die molding are completed
Afterwards, outwardly convex is continued on convex surface, until windshield plate to be bent is pressed against flexure plane by convex surface completely, and keeps fitting shape
State 1-2min；For convex surface retraction until convex surface is kept completely separate with flexure plane, convex surface is raised again until by cowl to be bent
Material is pressed against flexure plane until fitting completely, repeats 2~3 times aforesaid operations, until windshield plate to be bent is formed completely；
Step 5 will be bent qualitative windshield plate and be sent into annealing together with molding die in step 4
Room, and anneal by 20~50 DEG C/h of rate, the annealing rate of heating system is 20~40 DEG C/h；To cowl
The surface temperature of material reaches 40~60 DEG C, and the temperature of heating system is also after 40~60 DEG C, and upper die and lower die die sinking is taken out
Curved windshield plate is completed, the bending of windshield is completed.
Air bag is provided in step 2 in upper mold, the side of air bag and flexure plane cooperation is arranged in convex surface, and air bag passes through adjusting
Valve is connected with hot gas room, and hot gas room can convey hot gas by regulating valve into air bag, and hot air temperature is controlled by hot gas room.
In this application, the heating system in step 2 is provided with the heating pipe being embedded in flexure plane, and heating pipe is logical
It crosses control valve to connect with hot gas room, heating pipeline is provided with fumarole close to the side of flexure plane working face, and heating pipeline passes through
Fumarole is to the windshield plate injection hot gas on flexure plane and heats.Wherein softened by the way of spraying hot gas
Glass makes heating effect more preferably uniform, stepped temperature gradient, while the generated of traditional local heating being avoided to answer
Power problem.
In addition, in another embodiment in the application, step 4 can also be the gear to be bent that will soften in step 3
Wind glass board material is put into lower die, and the radian on convex surface increases to consistent with the radian of flexure plane, and upper mold is slowly molded with lower die,
Convex surface outwardly protrudes and gradually presses to the windshield plate to be bent of softening the flexure plane in lower die, the heating system in lower die
Windshield plate to be bent is opened and heated to system, and heating temperature is 240~270 DEG C；After the completion of upper mold and lower die molding, convex surface
Windshield plate to be bent is pressed against flexure plane completely, and keeps fit-state 1-2min；Upper die and lower die die sinking, convex surface
It is separated with flexure plane, upper mold molds again with lower die molding, 2~3 times aforesaid operations is repeated, until windshield plate to be bent
Sizing completely.In this embodiment, more easy in this manner, but the windshield processed is real compared to upper one
Apply that an effect is slightly worse, but the later period molding of entire windshield and intensity are also in reasonable range.
In addition, further include in the application step 6, by the windshield plate of brake forming according to preset specification carry out two
It is secondary to cut, and correct seamed edge.In this application, the windshield cut in advance can generally select the rule more slightly larger than predetermined size
Lattice avoid bending process contracting from becoming.Due to there is the case where deformation bend windshield when, results in and cut in advance
There is the process become large-sized in windshield, it is therefore desirable to carry out the secondary windshield for cutting, entire bending being come out
Meet predetermined size.
The processing method of this windshield is carried out curved using the flexure plane in the adjustable convex surface cooperation lower die of radian in upper mold
Windshield is rolled over, and is provided with heating system on flexure plane, utilizes the heating system region big to windshield Curvature varying
Emphasis heating is carried out, so that the soft formation effect of this part is greater than the region of other radius of curvature, the efficiency of bending is improved, makes
It obtains entire upper die and lower die to be easier for entire windshield to be folded into the shape of needs, while the intensity of entire glass being kept to ask
Topic；In addition, windshield generated stress after bending is effectively eliminated also using annealing stage by stage, after reducing later period molding
Stress concentrate, the problem of causing product to be broken.
The above, only better embodiment of the invention, but the present invention is not limited to above-described embodiments, as long as
The technical effect of the present invention is achieved by any identical or similar means for it, all should belong to protection scope of the present invention.
Claims (5)
1. a kind of processing method of windshield characterized by comprising
Molding windshield plate to be bent is carried out pre-cleaning and cuts to predetermined size by step 1；
Step 2 prepares glass and is bent molding equipment, including the preheating chamber set gradually and annealing chamber, preheating chamber and annealing chamber it
Between be provided with the molding die that can be slided therebetween, molding die includes upper die and lower die, be provided with flexure plane in lower die,
Flexure plane, which is located at, is connected with heating system, and the convex surface in engagement flex face is provided in upper mold, and the radian on convex surface can become larger, on
After mould and lower die molding, flexure plane can cooperate convex surface to carry out bending molding windshield plate to be bent；
The windshield plate to be bent of well cutting in step 1 is sent to preheating chamber and preheats by step 3, and preheating temperature is
180~250 DEG C, preheating time 10-15min, so that windshield plate to be bent softens；
Molding die is put into preheating chamber by step 4, and the windshield plate to be bent softened in step 3 is put into down
On mould, preheating room temperature is adjusted between 200~250 DEG C；Upper mold is slowly molded with lower die, while the radian on convex surface gradually becomes
Greatly, convex surface outwardly protrudes and gradually presses to the windshield plate to be bent of softening the flexure plane in lower die, adding in lower die
Windshield plate to be bent is opened and heated to hot systems, and heating temperature is 240~270 DEG C；After the completion of upper mold and lower die molding,
Outwardly convex is continued on convex surface, until windshield plate to be bent is pressed against flexure plane by convex surface completely, and keeps fit-state
1-2min；For convex surface retraction until convex surface is kept completely separate with flexure plane, convex surface is raised again until by windshield plate to be bent
Flexure plane is pressed against until fitting completely, repeats 2~3 times aforesaid operations, until windshield plate to be bent is formed completely；
Step 5 will be bent qualitative windshield plate and be sent into annealing chamber together with molding die in step 4, and
It anneals by 20~50 DEG C/h of rates, the annealing rate of heating system is 20~40 DEG C/h；To windshield plate
Surface temperature reaches 40~60 DEG C, and the temperature of heating system is also after 40~60 DEG C, and upper die and lower die die sinking, which is taken out, have been completed
Curved windshield plate, completes the bending of windshield.
2. a kind of processing method of windshield according to claim 1, which is characterized in that setting in upper mold in step 2
There is air bag, the side of air bag and flexure plane cooperation is arranged in convex surface, and air bag is connected with hot gas room by regulating valve, and hot gas room can lead to
It overregulates valve and conveys hot gas into air bag, hot air temperature is controlled by hot gas room.
3. a kind of processing method of windshield according to claim 2, which is characterized in that the heating system in step 2
It is provided with the heating pipe being embedded in flexure plane, heating pipe is connect by control valve with hot gas room, heats pipeline close to curved
The side of curved surface working face is provided with fumarole, and heating pipeline sprays heat to the windshield plate on flexure plane by fumarole
Gas is simultaneously heated.
4. a kind of processing method of windshield according to claim 1, which is characterized in that step 4 can also be that will walk
The windshield plate to be bent softened in rapid 3 is put into lower die, and the radian on convex surface increases to the radian one with flexure plane
It causes, upper mold is slowly molded with lower die, and convex surface outwardly protrudes and gradually presses to the windshield plate to be bent of softening in lower die
Flexure plane, the heating system in lower die opens and heats windshield plate to be bent, and heating temperature is 240~270 DEG C；On
After the completion of mould and lower die molding, windshield plate to be bent is pressed against flexure plane by convex surface completely, and keeps fit-state 1-
2min；Upper die and lower die die sinking, convex surface are separated with flexure plane, and upper mold molds again with lower die molding, repeat 2~3 times above-mentioned behaviour
Make, until windshield plate to be bent is formed completely.
5. a kind of processing method of windshield according to claim 1, which is characterized in that further include step 6, will be bent
Molding windshield plate is cut according to the progress of preset specification is secondary, and corrects seamed edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269577.7A CN109336372A (en) | 2018-10-29 | 2018-10-29 | A kind of processing method of windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269577.7A CN109336372A (en) | 2018-10-29 | 2018-10-29 | A kind of processing method of windshield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109336372A true CN109336372A (en) | 2019-02-15 |
Family
ID=65312344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811269577.7A Pending CN109336372A (en) | 2018-10-29 | 2018-10-29 | A kind of processing method of windshield |
Country Status (1)
| Country | Link |
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| CN (1) | CN109336372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704351A (en) * | 2020-07-13 | 2020-09-25 | 郑州福耀玻璃有限公司 | Car front bumper pressing forming process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801780Y (en) * | 2005-06-06 | 2006-08-02 | 江松伟 | Continuous glass thermobending furnace |
| CN107500515A (en) * | 2017-09-30 | 2017-12-22 | 重庆市顺华安全玻璃有限公司 | Windshield pane bending apparatus |
| CN107673589A (en) * | 2017-09-30 | 2018-02-09 | 重庆市顺华安全玻璃有限公司 | A kind of method of windshield bending forming |
| CN108191222A (en) * | 2018-03-26 | 2018-06-22 | 东莞市银泰玻璃有限公司 | A kind of glass bending process |
-
2018
- 2018-10-29 CN CN201811269577.7A patent/CN109336372A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801780Y (en) * | 2005-06-06 | 2006-08-02 | 江松伟 | Continuous glass thermobending furnace |
| CN107500515A (en) * | 2017-09-30 | 2017-12-22 | 重庆市顺华安全玻璃有限公司 | Windshield pane bending apparatus |
| CN107673589A (en) * | 2017-09-30 | 2018-02-09 | 重庆市顺华安全玻璃有限公司 | A kind of method of windshield bending forming |
| CN108191222A (en) * | 2018-03-26 | 2018-06-22 | 东莞市银泰玻璃有限公司 | A kind of glass bending process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704351A (en) * | 2020-07-13 | 2020-09-25 | 郑州福耀玻璃有限公司 | Car front bumper pressing forming process |
| CN111704351B (en) * | 2020-07-13 | 2022-09-16 | 郑州福耀玻璃有限公司 | Car front bumper pressing forming process |
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| PB01 | Publication | ||
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Application publication date: 20190215 |