CN1095011A - Injection molding new process of long steel pipe lining rubber and device - Google Patents
Injection molding new process of long steel pipe lining rubber and device Download PDFInfo
- Publication number
- CN1095011A CN1095011A CN 93110697 CN93110697A CN1095011A CN 1095011 A CN1095011 A CN 1095011A CN 93110697 CN93110697 CN 93110697 CN 93110697 A CN93110697 A CN 93110697A CN 1095011 A CN1095011 A CN 1095011A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- injection
- rubber
- push
- line
- 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.)
- Pending
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The present invention relates to method and device in long steel pipe inwall line with rubber material and moulding.
The present invention overlaps 9 from the sizing material import through charging with the fluidised sizing material that is heated, the endoporus of feed cylinder 11, the line with rubber gap that injection head 2 injects between steel pipes 5 and the injection head 2.Simultaneously, feed cylinder 11, injection head 2 are done gyration, line with rubber is carried out under dynamic situation, push cylinder 14 drives steel pipe 5 and travels longitudinally from right to left through push-and-pull folder 3, left module cover 4, make the steel pipe total length all serve as a contrast the glue-line of the even matter uniform thickness of last layer from left to right, the steel pipe of lining gluing is sent into vulcanization process, and the sulfuration back is extracted plug, i.e. steel tubing moulding out.Thereby solved the problem of the continuous line with rubber of long steel pipe.
Description
The present invention relates to process and device in long steel pipe inwall line with rubber material and moulding.
Having under the special occasions such as burn into serious wear, adopt general steel pipe, cast iron pipe is not satisfy to require, and to adopt the pipeline of special substances such as stainless steel tube, plastic tube, or the material that another kind can use under special circumstances on the common steel tube liner, as rubber, plastics, fiberglass etc.At present, the method for lining plastics has a lot, as: being that the plastic tube of making is inlayed the pipe the inside among CN87107640A, the CN1032812A, can be to apply one deck plastic lining in the pipe below 350 millimeters with diameter among the CN2044207U; And rubber lining is manual operations always, and rubber slab is affixed on the steel pipe inwall, inflation pressurization then, the sulfuration of heating.Rubber lining shortcoming is more in the pipe that this technology is made: the resistance that inner-walls of duct is rough, fluid is subjected to is big, and rubber combines insecure with tube wall, and seam crossing easily exposes metal pipe-wall, and pipeline life is shorter; The out-of-flatness of pipeline end face line with rubber layer need add rubber sheet gasket during installation, makes troubles to installation.Patent 91106633.0 is a kind of extruding rubber liner of steel tube methods, it is that the rubber material base is placed in the material chamber, apply certain pressure then, the material fluidised sizing material that is heated in the chamber is clamp-oned in the gap between steel pipe and the mandrel by the material feeding plate, treated that it is moulding that mandrel is taken out in vulcanization of rubber typing back.Though this method has solved manually operated some shortcoming, but have a fatal weakness: when that pushed sizing material exactly, stroke was long, and resistance is big, just can not guarantee line with rubber technology so that steel pipe length surpasses certain limit, so it generally only is adapted to the short steel pipes below 1 meter; And this technology is not separated line with rubber and sulfuration, so that the cycle is long, efficient is low.
The objective of the invention is to overcome above-mentioned shortcoming, injection molding new process of a kind of long steel pipe lining rubber and device are provided.
The present invention is achieved in that the fluidised sizing material that is heated is overlapped 9 from the sizing material import through charging, the endoporus of feed cylinder 11, the line with rubber gap that injection head 2 injects between steel pipes 5 and the injection head 2.Motor and transmission system 10 drive injection head 2 through feed cylinder 11 and do gyration simultaneously; Push cylinder 14 drives steel pipe 5 and travels longitudinally from right to left through push-and-pull folder 3, left module cover 4, makes the steel pipe total length all serve as a contrast the glue-line of the even matter uniform thickness of last layer from left to right.In addition, injection pushing oil cylinder 13 is through transiting rod 12, pushing head 15 promotes fluidization sizing material 6 and impels it to be moved to the left, improve injection pressure, and on plug 1, scribble lubricant, and scribble bonding agent on steel pipe 5 inwalls, increase the flowability between sizing material and the plug, the relative stability and the viscosity of sizing material and steel pipe 5 inwalls are beneficial to line with rubber.
Below in conjunction with accompanying drawing in detail the present invention is described in detail:
Device of the present invention is made up of main system, push-pull system, accessory system, heating thermoregulating system.Main system partly is made up of fluidization sizing material 6, charging cover 9, feed cylinder 11, injection head 2, plug 1, left module cover 4, steel pipe 5, right die cap 8, motor and transmission system 10 etc.; Push-pull system is by push cylinder 14, and push-and-pull presss from both sides 3, and left module cover 4, steel pipe 5, and right die cap 8 is formed; Accessory system is made up of injection pushing oil cylinder 13, transiting rod 12, pushing head 15; The cushioning thermoregulating system is a double dot dash line part in the accompanying drawing, and sequence number is 7; Fluidization sizing material 6 enters feed cylinder 11 through the sizing material import by charging cover 9, injection head 2 and inject gap between steel pipe 5 and the injection head 2, the injection portion of injection head 2 radially is provided with the oblique injection flow passage that several inclined holes are made sizing material, injection stroke is short, resistance is little, and during injection, gas can be discharged smoothly by the gap between left module cover 4 and the steel pipe 5.Injection head 2 be a close-coupled with feed cylinder 11, and with steel pipe 5 contact positions a plurality of sealpiston-rings is set radially, guaranteeing certain injection pressure, and can prevent the backflow of pressurized fluidised form sizing material.Charging is overlapped 9 endoporus peripheries annular hopper is set, and the part that feed cylinder 11 is fed cover 9 containings radially is provided with several holes, makes charging smooth, adopts high pressure sealing between charging cover 9 and the feed cylinder 11, and the line with rubber sealing is reliable.
After the used sizing material of lining section of a pipe all is injected into feed cylinder 11 inner chambers, motor and transmission system 10 drive feed cylinders 11, injection head 2, plug 1 are done gyration, line with rubber is carried out under dynamical state, increase the adhesiveness between sizing material and the steel pipe inwall like this, reduced the viscosity between injection head and the sizing material layer.Adopt shaft shoulder nut to connect between push cylinder 14 and the push-and-pull folder 3, and push-and-pull folder 3 is striden and is enclosed within on the left module cover 4, and add taper pin between them and locate.Push cylinder 14 is moved to the left through push-and-pull folder 3, left module cover 4 drive steel pipes 5 and right die cap, and injection pushing oil cylinder 13 is through transiting rod 12, and pushing head 15 promotes fluidization sizing material 6 and is moved to the left, and improves injection pressure, increases its flowability, is beneficial to line with rubber.Limit line with rubber like this, the limit push-and-pull, make whole steel pipe serve as a contrast the glue-line of the even matter uniform thickness of last layer from left to right, simultaneously, the steel pipe both ends are also by the smooth glue-line of lining last layer, and in the stopping time in line with rubber, pushing head 15 can be released the residue sizing material in the feed cylinder 11, influences its continuation use admittedly to prevent that sulfuration from doing.When steel pipe socket after finishing line with rubber on the plug 1 and removing, the piston rod of push cylinder and push-and-pull folder 3 cover connection is again gone up a new cover and is treated lined steel pipe die cover core bar system, and steel pipe and die cap are drawn in duty from left to right, so that line with rubber next time.Between plug 1 and the injection head 2, the articulation of axial end portion T shape primary-secondary type has been adopted in connecting between the piston rod of injection pushing oil cylinder 13 and the transiting rod 12.According to the variation of steel pipe specification, the corresponding variation will appear in the dimensions of left and right sides die cap, plug, injection head, feed cylinder, charging cover, pushing head, transiting rod.Heating thermoregulating system required heat and temperature when line with rubber is provided, and make adjustment as the case may be.
Method of the present invention has the following steps:
1, required sizing material being carried out fluidization handles;
2, plug 1 appearance is coated lubricant, steel pipe 5 inwalls are coated bonding agent;
3, steel pipe 5 and left module cover 4, right die cap 8 are fixed together, and they are enclosed within on the plug together, place plug position as shown in drawings then.
4, start push cylinder 14, the steel pipe 5 and the left and right die cap 4,8 that are enclosed within on the plug are drawn in duty as shown in drawings from left to right;
5, start the heating thermoregulating system;
6, the fluidization sizing material is injected the line with rubber place through sizing material import, charging cover 9, feed cylinder 11, injection head 2;
7, start injection pushing oil cylinder 13, with transiting rod 12, pushing head 15 promotes left.Starter motor and transmission system drive feed cylinder 11 simultaneously, and injection head 2 rotates; Startup push cylinder 14 drive steel pipes etc. at the uniform velocity are moved to the left;
8, served as a contrast a pipe after, injection pushing oil cylinder 13 stops to promote left, removes this steel pipe 5 and plug 1 thereof and they are sent into the constant voltage baking, extracts plug out, i.e. steel tubing moulding.
After changing new steel pipe and mandrel, can carry out above-mentioned line with rubber circulation again, just this moment, motor and transmission system have been in duty.According to the concrete condition and the needs of line with rubber, in the stopping time in line with rubber, release with residue sizing material in the feed cylinder 11 or near the sizing material that solidifies.
The present invention has following advantage:
1, line with rubber separates with sulfuration and carries out, install simple and easy, line with rubber efficient height;
2, injection stroke is short, and resistance is little, does at the uniform velocity lengthwise movement during steel pipe lining rubber, thus line with rubber pressure not the reason pipe increase and increase, especially be adapted to long steel pipe lining rubber.
3, it is big effectively to inject line with rubber pressure, has been coated with bonding agent in addition, and rubber and steel pipe walls are bonding firmly.
4, rubber is 100% to the area coverage of steel pipe inwall, finished product densification, no seam, pipeline long service life.
5, rubber lining smooth surface, thickness is even, and the resistance of ducting is little.
6, be lined with smooth rubber cushion simultaneously on the pipe flange end face, during installation, do not need to add gasket seal in addition, repair and replacement are very convenient.
Claims (3)
1, the injection molding method of a kind of long steel pipe inwall line with rubber, it is characterized in that: the fluidised sizing material 6 that will be heated overlaps 9 from the sizing material import through charging, the endoporus of feed cylinder 11, the line with rubber gap that injection head 2 injects between steel pipe 5 and the injection head 2, simultaneously, motor and transmission system 10 drive injection head 2 through feed cylinder 11 and do gyration; Push cylinder 14 is through push-and-pull folder 3, left module cover 4 drives steel pipe 5 and travels longitudinally from right to left, injection pushing oil cylinder 13 is through transiting rod 12, pushing head 15 promotes fluidization sizing material 6 and impels it to be moved to the left, improve injection pressure, thereby make the steel pipe total length evenly serve as a contrast the glue-line of the even matter uniform thickness of last layer from left to right.Plug, the i.e. moulding of steel pipe rubber lining are taken out in baking typing under constant voltage then.
2, method according to claim 1 is characterized in that: the mandrel outer surface scribbles lubricant, and the steel pipe inwall scribbles bonding agent.
3, the device of a kind of long steel pipe inwall line with rubber moulding is made up of main system, push-pull system, accessory system, heating thermoregulating system.Main system comprises fluidization sizing material 6, charging cover 9, feed cylinder 11, injection head 2, plug 1, left module cover 4, steel pipe 5, right die cap 8, motor and transmission system 10; Push-pull system mainly comprises: push cylinder 14, push-and-pull folder 3 and left module cover 4, steel pipe 5, right die cap 8; Accessory system comprises: injection pushing oil cylinder 13, transiting rod 12, pushing head 15; Heating thermoregulating system 7 is characterized in that:
A. the injection site of injection head 2 radially is provided with several inclined holes, as the oblique injection flow passage of sizing material; And a plurality of sealpiston-rings are being set with steel pipe 5 contact position radial direction.
B. be provided with belt hopper in the endoporus of charging cover 9, feed cylinder 11 is contained partly radially has several holes, so that sizing material enters.
C. connecting between plug 1 and the injection head 2, the articulation of axial end portion T shape primary-secondary type is all adopted in connecting between the piston rod of transiting rod 12 and injection pushing oil cylinder 13.
D. injection head 2 is close-coupled with feed cylinder 11, is driven by motor and transmission system 10 and does gyration.Adopt shaft shoulder nut to connect between push cylinder 14 and the push-and-pull folder 3, and push-and-pull folder 3 is striden and is enclosed within on the left module cover 4, and add taper pin between them and locate.
E. injection pushes oil cylinder 13, and by transiting rod 12, pushing head 15 promotes fluidization sizing materials 6; According to the variation of steel pipe specification, can correspondingly adopt the transiting rod 12 and the pushing head 15 of different size specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110697 CN1095011A (en) | 1993-05-11 | 1993-05-11 | Injection molding new process of long steel pipe lining rubber and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110697 CN1095011A (en) | 1993-05-11 | 1993-05-11 | Injection molding new process of long steel pipe lining rubber and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1095011A true CN1095011A (en) | 1994-11-16 |
Family
ID=4988534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93110697 Pending CN1095011A (en) | 1993-05-11 | 1993-05-11 | Injection molding new process of long steel pipe lining rubber and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095011A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729726A (en) * | 2016-05-04 | 2016-07-06 | 浙江海洋大学 | Preparation method of rubber lined three-screw pump |
| CN109130242A (en) * | 2018-08-10 | 2019-01-04 | 单卫军 | A kind of production method of frp lining composite steel tube and sealing and connection structure |
| CN109261454A (en) * | 2018-10-29 | 2019-01-25 | 湖北世纪伟业防腐科技有限公司 | A kind of lining plastic equipment and lining plastic method |
| CN114347458A (en) * | 2021-12-12 | 2022-04-15 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
-
1993
- 1993-05-11 CN CN 93110697 patent/CN1095011A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729726A (en) * | 2016-05-04 | 2016-07-06 | 浙江海洋大学 | Preparation method of rubber lined three-screw pump |
| CN105729726B (en) * | 2016-05-04 | 2018-04-24 | 浙江海洋大学 | A kind of preparation method of line with rubber three screw pump |
| CN109130242A (en) * | 2018-08-10 | 2019-01-04 | 单卫军 | A kind of production method of frp lining composite steel tube and sealing and connection structure |
| CN109130242B (en) * | 2018-08-10 | 2021-07-06 | 单卫军 | Manufacturing method of glass fiber reinforced plastic lining composite steel pipe and sealing and connecting structure |
| CN109261454A (en) * | 2018-10-29 | 2019-01-25 | 湖北世纪伟业防腐科技有限公司 | A kind of lining plastic equipment and lining plastic method |
| CN109261454B (en) * | 2018-10-29 | 2024-03-26 | 湖北世纪伟业防腐科技有限公司 | Plastic lining equipment and plastic lining method |
| CN114347458A (en) * | 2021-12-12 | 2022-04-15 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
| CN114347458B (en) * | 2021-12-12 | 2023-12-12 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1099951C (en) | Valve element driving mechanism for injection moulding equipment | |
| US5309947A (en) | Apparatus for lining an inside wall of a sewer pipe | |
| CN1295044C (en) | Barrel assembly | |
| CN86103196A (en) | The extrusion equipment that early progressive engages | |
| WO2006002743A1 (en) | Method for the continuous production of a composite pipe comprising a pipe collar, composite pipe, and device for carrying out said method and producing said composite pipe | |
| CN104290230B (en) | Overall feeding goes out lid formula bottle cap compression molding forming machine | |
| CN101410619A (en) | Piston pump for thick matter | |
| CN1095011A (en) | Injection molding new process of long steel pipe lining rubber and device | |
| CN1023691C (en) | Method for forming tubing utilizing suction and pneumatic pressure at surface of cooling plug | |
| CN109927265B (en) | Continuous processing and forming equipment and process for Kela pipe | |
| CN1715029A (en) | One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush | |
| US4997613A (en) | Method for installing end caps on tubular members | |
| CN1367075A (en) | Production method of steel-plastics composite pipe whose exterior is galvanized and interior is lined with polyethylene | |
| AU2008200548B1 (en) | An Apparatus and Method for Internally Lining an Elongate Member | |
| CN107176474A (en) | A kind of extruded type device for transporting objects | |
| CN110774554A (en) | One-time reaction extrusion molding production line for acrylic plates | |
| CN209851530U (en) | Krah pipe continuous processing shaping equipment | |
| CN213383094U (en) | Large-diameter polymer pipeline hasp winding forming equipment | |
| US4923663A (en) | Method of lining tubular members including rolling and crushing a liner | |
| DE19505984A1 (en) | Combined plasticiser, injection piston and valving system improves uniformity in injection moulding | |
| US5992467A (en) | Liner reduction system using pressurized dies and apparatus therefor | |
| CN1277101A (en) | Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) | |
| CN115178638A (en) | Auxiliary heating extrusion forming device and process for prefabricated three-way joint | |
| CN1030544A (en) | Be used for producing continuously the device of heat-shrinkable cress linked resin tub | |
| CN200970863Y (en) | vulcanizing mould for groove pipe joint sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |