CN1170665C - Production method of silicone rubber pressure roller of teflon film and its equipment - Google Patents
Production method of silicone rubber pressure roller of teflon film and its equipment Download PDFInfo
- Publication number
- CN1170665C CN1170665C CNB991239946A CN99123994A CN1170665C CN 1170665 C CN1170665 C CN 1170665C CN B991239946 A CNB991239946 A CN B991239946A CN 99123994 A CN99123994 A CN 99123994A CN 1170665 C CN1170665 C CN 1170665C
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- China
- Prior art keywords
- mould
- teflon film
- silicon rubber
- pressure roll
- rubber
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 37
- 239000004809 Teflon Substances 0.000 title claims abstract description 32
- 229920006362 Teflon® Polymers 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000004945 silicone rubber Substances 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 6
- 238000013040 rubber vulcanization Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- 239000011247 coating layer Substances 0.000 description 8
- 210000004907 gland Anatomy 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a device for producing silicon rubber pressure rollers with teflon films, which comprises two component rubber material cylinders A, B and a toning material cylinder C, wherein the upper part of the toning material cylinder C is connected with a pressing machine by a pipeline; the rubber material cylinders A, B and the toning material cylinder C are respectively connected with a pressure meter and are respectively connected to a mixer by pipelines; a pipeline from the mixer to a feed opening of a forming mold is provided with a rubber injection valve and a pressure relief device; the forming mold is vertically arranged up and down, and the feed opening is formed on the lower part of the mold. The present invention has the advantages of simple producing technique, easy and convenient operation, high production efficiency and qualified rate of products and low production cost.
Description
Technical field
The present invention relates to the silicon rubber pressure roll process units and the process thereof of the used teflon film of a kind of duplicator fusing system, especially a kind of silicon rubber pressure roll process units and method thereof that does not need teflon film evacuation process, that yield rate and production efficiency are all higher.
Background technology
Fluorine-coating layer silicon rubber pressure roll mainly is used on the fixing device of duplicator.Fluorine-coating layer is meant at silicon rubber pressure roll outer surface and is coated with Teflon film.When duplicator is worked, this pressure roll be cooperate the high temperature fixing roller with toner securely photographic fixing on copy paper, and guarantee the clear of copy and cleaning.Therefore, fluorine-coating layer silicon rubber pressure roll is widely used on the fixing device of various duplicators as an important accessory of duplicator.For these years, the production method of existing fluorine-coating layer silicon rubber pressure roll is being continued to use steps such as mantle, component A, B and colorant vacuumize at blender E mixing, high-pressure pump D pressure injecting glue, vacuum equipment G on roller core F, discharge pressure release, constant temperature vulcanizing treatment, wherein of paramount importancely be exactly, in high-pressure pump D injecting glue, cooperate utilizing vacuum equipment D to vacuumize in the pressure roll mould F, it is not have bubble to produce in teflon film and silicon rubber in order to guarantee, sizing material enriches, therefore any surface finish will be evacuated the space of cast silica gel before injecting glue.Because evacuation process is comparatively complicated, the unstability of operation easily causes substandard products.In addition, it is also more to vacuumize the equipment that need to cooperate, and structures such as the used equipment formation of corresponding existing processes, pressure roll mould are numerous and diverse especially, the production cost height, as shown in Figure 1.The production mould basic structure of existing fluorine-coating layer silicon rubber pressure roll as shown in Figure 2, its sleeve a one end is provided with trim ring b, the other end is provided with and covers c, lid c is provided with charging aperture d and exhaust outlet e, trim ring b bottom is provided with sealing chassis (not shown), the chassis is provided with from the gland of two ends clamping sleeve and assembly thereof with the two ends of lid c, and two glands are connected in series with stay bolt, uses the affixed (not shown) of nut more respectively from two ends.When producing fluorine-coating layer silicon rubber pressure roll, earlier roller core is put into sleeve, respectively that the gland at trim ring b, lid c, chassis and two ends is affixed, again material is pressed into from charging aperture d, bleed from exhaust outlet e simultaneously, prevent that bubble from producing; After material feeding is finished, each assembly is pulled down successively, ejected fluorine-coating layer silicon rubber pressure roll.Because this structural elements is more, produce when using, not only operation is comparatively numerous and diverse, production efficiency is low, and service life is shorter, and the cost of mould own is higher, has this mould structure almost not have positioner again, therefore exist roller core to locate defectives such as inaccurate, this is a principal element that causes silicon rubber pressure roll defect rate higher.And because the depanning difficulty, the easier pressure roll surface folding that causes becomes substandard products.Have again, existing apparatus is provided with relief valve on the injecting glue pipeline, the effect of relief valve is to finish when injecting glue, closed rubber injecting valve I after, open relief valve G, bleed off the silica gel in the pipeline, to reduce the pressure silica gel in the pipeline, can unload mould, the basic structure of its system is as shown in Figure 1, so so more increased the complexity of operation, the silica gel wastage of material is very big simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of silicon rubber pressure roll production method and device thereof of teflon film, its production technology is more simplified, and is simple to operation, production efficiency, product percent of pass height, and production cost is lower.
The object of the present invention is achieved like this:
A kind of silicon rubber pressure roll process units of teflon film, comprise that two component sizing material tube A, B and toning material tube C top connect forcing press by pipeline, sizing material tube A, B and toning material tube C are connected to Pressure gauge respectively, and sizing material tube A, B and toning material tube C all are connected to blender by pipeline, blender to the pipeline between the mould charging aperture is provided with rubber injecting valve and pressure relief device, mould is for vertically installing up and down, and charging aperture is in the bottom of mould.
Described mould comprises sleeve, two glands; Two glands are respectively upper and lower clamp nut, and the outer wall at sleeve two ends is provided with the screw thread that matches with upper and lower clamp nut inwall, and upper and lower clamp nut central authorities offer hole; The two ends of sleeve is provided with upper and lower mould post, and the two ends inwall of upper and lower mould post base and sleeve is fitted, and upper and lower mould post cylinder passes upper and lower clamp nut central hole respectively; The counterdie post is hollow, offers charging aperture on the cylinder.
Described mould sleeve two ends inwall is provided with the chamfering inclined-plane, and upper and lower mould post is the inclined-plane of corresponding applying with the contact-making surface of sleeve.
Described pressure relief device is an automatic decompression device.
Described pressure relief device is a piston, and the catch bar of piston stretches out gum-injecting port, can correspondence closely insert the mould charging aperture, and the catch bar axle center of piston is hollow perforation.
A kind of silicon rubber pressure roll production method that is applied to the teflon film of said apparatus comprises the steps:
A, teflon film is enclosed within on the roller core;
B, the roller core that will be with teflon film are put into the pressure roll mould;
C, mould is installed on the equipment;
D, silicon rubber is clamp-oned the charging aperture that pipe outlet is connected to the mould bottom;
The two-component silicone rubber raw material that e, adjustment mix is opened rubber injecting valve;
F, upwards push injecting glue from the bottom of mould, reinforced in roller core and teflon film cover, air is squeezed in roller core and the teflon film cover, and discharge naturally makes progress;
G, close rubber injecting valve, unload injected rubber hose from mould;
H, the mould that injecting glue is finished are put into insulating box, carry out silicon rubber vulcanization and handle;
I, unload mould, pressure release;
J, pushing tow take out the pressure roll blank;
K, to the blank shaping.
Vulcanizing treatment among the above-mentioned steps h is to carry out under 180-200 ℃ 30-40 minute.
From technique scheme as can be known, the present invention has saved the step that vacuumizes, and has improved crucial forming die structure greatly, has solved pipeline pressure release problem dexterously, it is simple to have method technology, apparatus structure is reasonable, and is easy and simple to handle, the production efficiency height, the product defect rate is low, better quality, characteristics such as product cost is low, and use the present invention can also save raw material well.
Description of drawings
Fig. 1 constitutes schematic diagram for prior art processes;
Fig. 2 is existing pressure roll forming die structure schematic diagram;
Fig. 3 constitutes schematic diagram for technology of the present invention;
Fig. 4 is a pressure roll forming die structure schematic diagram of the present invention;
Fig. 5 is a release pressure piston structure schematic diagram of the present invention.
The specific embodiment
Referring to Fig. 3, device of the present invention is a kind of silicon rubber pressure roll process units of teflon film, it comprises that two component sizing material tube A, B and toning material tube C top are by pipeline cut-in pressure machine D, sizing material tube A, B and toning material tube C are connected to Pressure gauge respectively, how much for preparing burden can realize that pressure is big according to the adjusting of pressure, and charging is many, pressure is little, and batching is few.Sizing material tube A, B and toning material tube C pipeline all are connected to blender E by pipeline, (technical parameters such as sizing material A, B, colorant C and required pressure meet the requirement of product standard for component A, B and colorant C, repeating no more in this) pipeline by separately is depressed into blender, and blender E fully mixes the three.Pipeline behind the blender E meets rubber injecting valve I, and rubber injecting valve I is provided with pressure relief device G to the pipeline between the mould F charging aperture, and the sizing material that mixes passes through rubber injecting valve I, pressure relief device G to mould F.The equipment that has omitted the prior art key in this device constitutes---vaccum-pumping equipment, simplified production technology greatly, and improve production efficiency and product quality has reduced cost.
Referring to Fig. 4, the fluorine-coating layer silicon rubber pressure roll mould in the device of the present invention, it comprises sleeve 1, two glands, the assemblies such as lid that saved trim ring, chassis and had exhaust outlet.Two glands at these two ends are respectively upper and lower clamp nut 2,3, and the outer wall at sleeve 1 two ends is provided with the screw thread that matches with upper and lower clamp nut 2,3 inwalls, and upper and lower clamp nut 2,3 can directly be socketed in sleeve 1 termination.Upper and lower clamp nut 2,3 central authorities offer hole.The two ends of sleeve 1 is provided with upper and lower mould post 4,5, and the two ends inwall of upper and lower mould post 4,5 bases and sleeve 1 is fitted, and upper and lower mould post 4,5 cylinders pass upper and lower clamp nut 2,3 central hole respectively; Counterdie post 5 is hollow, offers charging aperture 6 on the cylinder.
During use, roller core 7 is put Teflon film, insert in the sleeve 1, respectively upper and lower mould post 4,5 cylinders are passed upper and lower clamp nut 2,3 central hole, mould post base is supported in sleeve 1 two-port, and upper and lower clamp nut 2,3 and sleeve 1 screw togather and tighten, and entire die is interposed on the equipment, conveying pipeline is aimed at charging aperture 6, and forced feed gets final product.In the time of need taking out the silicon rubber pressure roll 8 of moulding, open the upper and lower clamp nut 2,3 at two ends respectively, support out silicon rubber pressure roll 8 and get final product.Whole operation is very simple.
For improving the airtight applying of upper and lower mould post 4,5 and sleeve 1, and can ensure the roller core accurate positioning, eliminate the hard gouging abrasion between 1 mouthful of inwall of upper and lower mould post and sleeve, sleeve 1 two-port inwall is provided with the chamfering inclined-plane, and upper and lower mould post 4,5 is the inclined-plane of corresponding applying with the contact-making surface of sleeve 1.Can airtightly better combine between upper and lower like this mould post 4,5 tops and sleeve 1 port inner wall, and reduced between upper and lower mould post 4,5 tops and sleeve 1 port inner wall hard grind and wiped, prolonged the service life of upper and lower mould post 4,5 and sleeve 1.
Referring to Fig. 5, the pipeline between rubber injecting valve I and the mould F charging aperture 6 is provided with pressure relief device G.Pressure relief device G is a piston 9, and the catch bar 10 of piston 9 stretches out gum-injecting port, can correspondence insert mould charging aperture 6, and catch bar 10 axle center of piston are hollow perforation.When taking off mould F, piston 9 is subjected to the ejection of loine pressure, moves to the gum-injecting port place, in the process of pressure release gum-injecting port is clogged, and avoids a large amount of raw materials to drain waste.When installing mould F once more, the charging aperture 6 ejector ram catch bars 10 of mould F push sprue with piston 9, can carry out normal material feeding.This structure has not only been saved raw material, and has simplified the pressure release operation, utilizes piston automatically to finish this work.
Method of the present invention is a kind of silicon rubber pressure roll production method of teflon film, and it comprises the following step
1, go forward in that teflon film is enclosed within roller core, can be the same with existing method on roller core material, the inwall of coating adhesive teflon film handle and the unanimity of specification requirement such as wall thickness and prior art;
2, the roller core that will be with teflon film is put into the pressure roll mould, the good cover of airtight, fixed installation;
3, mould is installed on the equipment;
4, silicon rubber is clamp-oned the charging aperture that the pipe outlet is connected to the mould bottom;
5, the two components that adjustment process blender mixes and the silicon rubber material raw material of colorant are opened rubber injecting valve, the pressurization injecting glue;
6, upwards push injecting glue from the bottom of mould, reinforced in roller core and teflon film cover, air is squeezed in roller core and the teflon film cover, upwards discharges naturally.At this moment, can make slowly upwards ejection of silica gel, though be airtight in the mould from the bottom injecting glue, but because the effect of pressure is arranged, silica gel is by ejection at leisure, in the process of ejection silica gel, air in the mould is along with airtight cavity body of mould inwall is extruded, and air can successfully be got rid of.Because of the cementation of silica gel self, under the pressure ejection, it is solidifiable that silica gel has arrived the wall mouth, therefore can too much not overflow inwall, thereby omitted the step that mould is vacuumized, the omission of this step is simplified and technological process greatly, has saved to vacuumize and corollary equipment;
7, close rubber injecting valve, unload injected rubber hose, utilize the pressure relief device releasing pressure automatically to regulate simultaneously from mould;
8, the mould that injecting glue is finished is put into insulating box, carries out silicon rubber vulcanization and handles; Vulcanizing treatment was carried out under 180-200 ℃ 30-40 minute;
9, dismantle mould, pushing tow takes out the pressure roll blank;
10,, whole work are promptly finished in the silica gel cutting of wall mouth bonding to the blank shaping.
Claims (5)
1, a kind of silicon rubber pressure roll process units of teflon film, it is characterized in that, it comprises that two component sizing material tube A, B and toning material tube C top connect forcing press by pipeline, sizing material tube A, B and toning material tube C are connected to Pressure gauge respectively, and sizing material tube A, B and toning material tube C pipeline are all by the same blender that is connected to, blender to the pipeline between the mould charging aperture is provided with rubber injecting valve and pressure relief device, mould is for vertically installing up and down, and charging aperture is in the bottom of mould.
2, the silicon rubber pressure roll process units of teflon film according to claim 1, it is characterized in that: described pressure relief device is an automatic decompression device.
3, the silicon rubber pressure roll process units of teflon film according to claim 2, it is characterized in that: described pressure relief device is a piston, the catch bar of piston stretches out gum-injecting port, can correspondence closely insert the mould charging aperture, and the catch bar axle center of piston is hollow perforation.
4, a kind of silicon rubber pressure roll production method of teflon film is characterized in that: in the silicon rubber pressure roll process units as the arbitrary described teflon film of claim 1-3, comprise the steps:
A, teflon film is enclosed within on the roller core;
B, the roller core that will be with teflon film are put into the pressure roll mould;
C, mould is installed on the equipment;
D, silicon rubber is clamp-oned the charging aperture that pipe outlet is connected to the mould bottom;
The two-component silicone rubber raw material that e, adjustment mix is opened rubber injecting valve;
F, upwards push injecting glue from the bottom of mould, reinforced in roller core and teflon film cover, air is squeezed in roller core and the teflon film cover, and discharge naturally makes progress;
G, close rubber injecting valve, unload injected rubber hose from mould;
H, the mould that injecting glue is finished are put into insulating box, carry out silicon rubber vulcanization and handle;
I, unload mould, pressure release;
J, pushing tow take out the pressure roll blank;
K, to the blank shaping.
5, the silicon rubber pressure roll production method of teflon film according to claim 4, it is characterized in that: vulcanizing treatment was carried out under 180-200 ℃ 30-40 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991239946A CN1170665C (en) | 1999-11-23 | 1999-11-23 | Production method of silicone rubber pressure roller of teflon film and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991239946A CN1170665C (en) | 1999-11-23 | 1999-11-23 | Production method of silicone rubber pressure roller of teflon film and its equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1303766A CN1303766A (en) | 2001-07-18 |
| CN1170665C true CN1170665C (en) | 2004-10-13 |
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ID=5283095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991239946A Expired - Fee Related CN1170665C (en) | 1999-11-23 | 1999-11-23 | Production method of silicone rubber pressure roller of teflon film and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1170665C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308130C (en) * | 2003-04-15 | 2007-04-04 | 陈贤斌 | Production method of coated pressure roll |
| CN112238560A (en) * | 2020-10-09 | 2021-01-19 | 天津工业大学 | Injection molding method and device for preparing large-size high-temperature-resistant and high-pressure-resistant expansion coating capsule by adopting ultra-high-viscosity silicone rubber |
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1999
- 1999-11-23 CN CNB991239946A patent/CN1170665C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1303766A (en) | 2001-07-18 |
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Granted publication date: 20041013 Termination date: 20091223 |