CN112392975A - Bidirectional sealing wear-resistant lining polyurethane knife gate valve and processing technology thereof - Google Patents
Bidirectional sealing wear-resistant lining polyurethane knife gate valve and processing technology thereof Download PDFInfo
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- CN112392975A CN112392975A CN202011108780.3A CN202011108780A CN112392975A CN 112392975 A CN112392975 A CN 112392975A CN 202011108780 A CN202011108780 A CN 202011108780A CN 112392975 A CN112392975 A CN 112392975A
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- valve
- flashboard
- gate plate
- valve body
- resistant lining
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 35
- 239000004814 polyurethane Substances 0.000 title claims abstract description 35
- 238000012545 processing Methods 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000003698 laser cutting Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000007790 scraping Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 238000004073 vulcanization Methods 0.000 claims description 20
- 230000001788 irregular Effects 0.000 claims description 16
- 238000005422 blasting Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- 210000000078 claw Anatomy 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000002585 base Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a bidirectional sealing wear-resistant lining polyurethane knife gate valve and a processing technology thereof, wherein the bidirectional sealing wear-resistant lining polyurethane knife gate valve comprises a valve body and is characterized in that: the laser cutting gate is characterized in that a liquid flow hole is formed in the valve body, bosses are arranged on two sides of the liquid flow hole respectively, lining polyurethane is arranged on the surface of the liquid flow hole, arc-shaped scraping pieces are arranged above the liquid flow hole, a gate plate is arranged in the middle of the valve body and matched with the arc-shaped scraping pieces, a valve rod is arranged on one gate plate, a valve rod nut is arranged on the surface of the valve rod, supports are arranged on two sides of the valve rod nut respectively, a hand wheel is arranged at the top of each support and is in spiral connection with the valve rod nut, and a required gate plate generating material is installed on a laser cutting workbench surface to perform laser cutting on the gate plate.
Description
Technical Field
The invention relates to the technical field of polyurethane knife gate valves and processing technologies thereof, in particular to a bidirectional sealing wear-resistant lining polyurethane knife gate valve and a processing technology thereof.
Background
Along with the gradual increase of petroleum to offshore exploitation and the gradual promotion of related chemical industries such as coal chemical industry and the like, the demand on acid-base corrosion resistance conveying pipelines is gradually increased, seawater corrosion and chemical acid-base corrosion on components such as valves on pipelines are very serious, the development of valves capable of resisting strong acid-base corrosion is an important subject of the development of current valves, the current methods generally adopt materials such as nickel-base alloy and nickel-copper alloy, and simultaneously comprise ways such as porcelain lining and rubber lining, the existing advantages have disadvantages, the related alloy materials are adopted, the cost is high, the material property and the corrosion resistance are single, the existing materials are only resistant to acid corrosion and only resistant to alkali corrosion, the selection is very exquisite, the service life is not long, the rubber lining valve is pressed by an outer die in the lining process, the process is complex, and the like, so that the design practicability is high, and the product processing and assembling cost is reduced A gate valve and a process for manufacturing the same are necessary.
Disclosure of Invention
The invention aims to provide a bidirectional sealing wear-resistant lining polyurethane knife gate valve and a processing technology thereof, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a wear-resisting inside lining polyurethane knife gate valve of two-way seal and processing technology thereof, includes the valve body, its characterized in that: the inside of valve body is provided with the liquid flow hole, the both sides in liquid flow hole are provided with the boss respectively, the surface in liquid flow hole is provided with inside lining polyurethane, and when pipeline and valve body installation, boss and pipeline contact cooperation can support around the pipeline, prevent that liquid from revealing through liquid flow hole liquid when the pipeline, because the inside lining polyurethane of installing of liquid flow hole, can avoid valve body and liquid medium's direct contact, extension valve life, better sealed effect.
Further, the top in liquid flow hole is provided with the arc doctor-bar, the centre of valve body is provided with the flashboard, the flashboard cooperatees with the arc doctor-bar, when the flashboard rebound, because the flashboard both sides all have liquid medium, because some liquid medium viscosity are higher can be glutinous in the flashboard both sides, because the arc doctor-bar supports the both sides of flashboard, can scrape down the higher liquid medium of viscidity of flashboard both sides, prevent that the flashboard is because of the too much impairement of viscidity medium.
Further, one of flashboard is provided with the valve rod, the surface of valve rod is provided with valve-stem nut, valve-stem nut's both sides are provided with the support respectively, the top of support is provided with the hand wheel, hand wheel and valve-stem nut are threaded connection, and when the hand wheel was rotatory, drive valve rod rebound through valve-stem nut, the valve rod drives the flashboard rebound, makes inside the flashboard shifted out the valve body, makes the liquid medium circulation in the pipeline, resets the flashboard through rotatory hand wheel after the work finishes, can block the liquid medium circulation.
A processing technology of a bidirectional sealing wear-resistant lining polyurethane knife gate valve comprises the steps of firstly, laser cutting; clamping the flashboard; thirdly, sand throwing treatment is carried out on the surface of the flashboard blank; step four, gluing an adhesive; step five, entering a drying tunnel; step six, preheating and pouring the prepolymer; step seven, entering a drying tunnel; step eight, vulcanization treatment; step nine, demolding; step ten, post-vulcanization treatment.
Further, step one will be required flashboard generation material and install on laser cutting's table surface, carry out laser and cut out the flashboard, adopt laser cutting, punch, improve work efficiency, promote product quality, utilize laser equipment accurate, high-efficient, stable outstanding characteristic, overcome artificial not enough, catered to enterprise raise the efficiency, reduce cost's demand.
Further, the second step includes the following steps:
1) placing the cut gate plate between the first quart claw and the second claw;
2) the rotation degree of the disc is controlled, the circular boss on the disc is rotated to the horizontal direction from the vertical direction, the first connecting rod and the second connecting rod are driven to rotate, the first clamping jaw and the second clamping jaw are pulled to be opened and closed to clamp the flashboard, and the flashboard is prevented from falling off from the first clamping jaw and the second clamping jaw to influence subsequent work;
3) when the flashboards are clamped by the first clamping jaw and the second clamping jaw, the first clamping jaw and the second clamping jaw are fixed by the clamping grooves of the first clamping jaw and the second clamping jaw in the shell;
4) the motor of one side rotation axis of shell controls the rotation axis and drives the shell at the uniform velocity rotatoryly to it is rotatory to drive the flashboard, and when jack catch one and jack catch two are fixed with the shell, rotating electrical machines provide the electric energy and make the flashboard rotate at the uniform velocity further, step three includes following step:
1) the rotating shaft rotates to drive the connecting rod II to rotate, so that the connecting rod I rotates, the connecting rod I rotates to drive the irregular ball block to rotate, the movable rod can be pushed by utilizing the irregular shape of the surface of the irregular ball block, the movable rod moves leftwards when the convex surface of the irregular ball block abuts against the movable rod, and the movable rod moves rightwards when the concave surface of the irregular ball block abuts against the movable rod, so that the shot blasting pipe can swing leftwards and rightwards;
2) the moving rod moves to push the shot blasting pipe to swing left and right, so that shot blasting can be evenly impacted on the surface of the gate plate, the surface of the gate plate is in a cross pattern, the shot blasting can increase the mechanical strength, the wear resistance, the fatigue resistance and the corrosion resistance of the gate plate, and the surface of the gate plate is in a cross pattern, so that liquid magazines can be prevented from being adhered to the surface of the gate plate;
3) the used shot blasting flows into a collecting box, and can be recycled after collection.
Further, the fourth step includes the following steps:
1) when shot blasting is finished, the first connecting rod is disconnected with the connecting rod, the trapezoidal grooves on the two sides of the moving strip are matched with the trapezoidal lugs of the support to guide and limit, the gear is controlled to rotate to be meshed with the gear on the surface of the moving strip, and the moving strip is pushed to move into the shell;
2) the movable strip is arranged below the adhesive pipeline, the adhesive flows into the groove of the movable strip to the roller, the extrusion roller rotates under the action of gravity when the adhesive in the groove reaches a certain weight, and the springs on the two sides of the roller are extruded to be opened, so that the adhesive flows to the surface of the gate plate from between the two rollers in a thin strip mode, and the adhesive is prevented from falling into the surface of the gate plate once to cause excessive adhesive on the surface of the gate plate;
3) at the moment, the gate plate rotates at a constant speed, and the adhesive uniformly flows into the surface of the gate plate.
Further, in the fifth step, the gate plate is rotated into the drying box through the rotary column, and the adhesive on the surface of the gate plate is dried.
Further, step six, step seven, step eight, step nine, step ten, put the stock mould into the valve body, pour the prepolymer into the stock mould through the sprue gate, put whole stock mould and valve body into the drying-machine after pouring to dry, the whole is put into vulcanization processing equipment to carry out vulcanization processing to the stoving completion, demold after vulcanization processing is accomplished, put the valve body after demolding into vulcanization processing equipment again after the completion and vulcanize, take out the valve body after the processing is accomplished, polyurethane inside lining is formed to the surface in the valve body this moment, according to the characteristic of polyurethane material, the flexible production technology of lining polyurethane sword pouring has been designed, product processing assembly cost has been reduced, the degree of flexibility of processing has been greatly increased.
Compared with the prior art, the invention has the following beneficial effects: the processing and assembling cost of the product is reduced, and the invention,
(1) by arranging the lining polyurethane on the surface of the liquid flowing hole, when the pipeline and the valve body are installed, the boss is in contact fit with the pipeline and can abut against the periphery of the pipeline, so that liquid leakage when the liquid passes through the pipeline through the liquid flowing hole is prevented;
(2) the laser cutting is adopted, so that the working efficiency is improved, the product quality is improved, the outstanding characteristics of precision, high efficiency and stability of laser equipment are utilized, the defect of labor is overcome, and the requirements of enterprises on improving the efficiency and reducing the cost are met;
(3) through being provided with irregular ball piece and carriage release lever, the carriage release lever moves rightwards when the concave surface of irregular ball piece supports the carriage release lever and can make the peening pipe horizontal hunting, makes the peening can strike on average on the surface of flashboard, makes the surface of flashboard be the cross striation, and the peening can increase the mechanical strength and the wearability, the antifatigue and the corrosion resistance of flashboard, and the surface of flashboard is the surface of cross striation flashboard and is the cross striation can prevent that the magazine of liquid from gluing on the flashboard surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall elevational view of the present invention;
FIG. 2 is a schematic view of the process of the present invention;
FIG. 3 is a schematic view of the gate clamping process of the present invention;
FIG. 4 is a schematic view of the surface sanding process of the gate plate blank of the present invention;
FIG. 5 is a schematic diagram of the adhesive application process of the present invention;
FIG. 6 is an overall perspective view of the valve body and gate of the present invention;
FIG. 7 is a schematic view of a sizing die of the present invention;
FIG. 8 is a schematic side view of a moving strip of the present invention;
in the figure: 1. a first clamping jaw; 2. a second jaw; 3. a first connecting rod; 4. a disc; 5. a second connecting rod; 6. a shot pipe; 7. irregular ball blocks; 8. a pouring hole; 9. a shutter plate; 10. a valve body; 11. a boss; 12. a support; 13. a hand wheel; 14. a valve stem; 15. a valve stem nut; 16. an arc-shaped scraping blade; 17. a liquid flow aperture; 18. a circular boss; 19. a first connecting rod; 20. a second connecting rod; 21. a travel bar; 22. shaping a mould; 23. searching a collection box; 24. a housing; 25. an adhesive conduit; 26. a gear; 27. a moving bar; 28. a support frame; 29. a roller; 30. and (4) rotating the column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: the utility model provides a wear-resisting inside lining polyurethane knife gate valve of two-way seal and processing technology thereof, includes valve body 10, its characterized in that: the liquid flow hole 17 is formed in the valve body 10, the bosses 11 are respectively arranged on two sides of the liquid flow hole 17, lining polyurethane is arranged on the surface of the liquid flow hole 17, when a pipeline is installed on the valve body 10, the bosses 11 are in contact fit with the pipeline and can abut against the periphery of the pipeline, liquid leakage when the liquid passes through the liquid flow hole 17 and passes through the pipeline is prevented, and the lining polyurethane is arranged in the liquid flow hole 17, so that the direct contact between the valve body and a liquid medium can be avoided, the service life of the valve is prolonged, and a better sealing effect is achieved;
as shown in fig. 1, an arc-shaped scraping blade 16 is arranged above a liquid flow hole 17, a gate plate 9 is arranged in the middle of a valve body 10, the gate plate 9 is matched with the arc-shaped scraping blade 16, when the gate plate 9 moves upwards, because liquid media are arranged on two sides of the gate plate 9, and because some liquid media are sticky on two sides of the gate plate 9 due to high viscosity, the arc-shaped scraping blade 16 is abutted against two sides of the gate plate 9, the liquid media with high viscosity on two sides of the gate plate 9 can be scraped, and the gate plate is prevented from being damaged due to excessive viscosity media;
as shown in fig. 1, a valve rod 14 is arranged on one of the gate plates 9, a valve rod nut 15 is arranged on the surface of the valve rod 14, brackets 12 are respectively arranged on two sides of the valve rod nut 15, a hand wheel 13 is arranged on the top of the bracket 12, the hand wheel 13 and the valve rod nut 15 are in screw connection, when the hand wheel 13 rotates, the valve rod 14 is driven by the valve rod nut 15 to move upwards, the valve rod 14 drives the gate plate 9 to move upwards, the gate plate 9 is moved out of the valve body, so that liquid media in a pipeline can flow, and after the operation is finished, the gate plate 9 is reset by rotating the hand wheel 13;
a processing technology of a bidirectional sealing wear-resistant lining polyurethane knife gate valve comprises the steps of firstly, laser cutting; clamping the flashboard; thirdly, sand throwing treatment is carried out on the surface of the flashboard blank; step four, gluing an adhesive; step five, entering a drying tunnel; step six, preheating and pouring the prepolymer; step seven, entering a drying tunnel; step eight, vulcanization treatment; step nine, demolding; step ten, post-vulcanization treatment;
firstly, mounting a required flashboard generation material on a laser-cut working table surface, carrying out laser cutting on the flashboard 9, carrying out laser cutting and punching, improving the working efficiency, improving the product quality, overcoming the defect of labor by utilizing the outstanding characteristics of precision, high efficiency and stability of laser equipment, and meeting the requirements of enterprises on improving the efficiency and reducing the cost;
as shown in fig. 2 and 3, step two includes the following steps:
1) placing the cut gate plate 9 between the quart claw I1 and the claw II 2;
2) the disc 4 is controlled to rotate 180 degrees, the circular boss 18 on the disc 4 rotates from the vertical direction to the horizontal direction, the connecting rod I3 and the connecting rod II 5 are driven to rotate, the claw I1 and the claw II 2 are pulled to be opened and closed to clamp the flashboard 9, and the flashboard 9 is prevented from falling off from the claw I1 and the claw II 2 to influence subsequent work;
3) when the flashboard 9 is clamped by the first jaw 1 and the second jaw 2, the grooves of the first jaw 1 and the second jaw 2 are buckled in the shell 19 to fix the first jaw 1 and the second jaw 2;
4) the motor is used for controlling the rotating shaft to drive the shell 19 to rotate at a constant speed on one side of the shell 19, so that the flashboard 9 is driven to rotate, and when the first jaw 1, the second jaw 2 and the shell 19 are fixed, the rotating motor provides electric energy to enable the flashboard 9 to rotate at a constant speed;
as shown in fig. 2 and 4, step three includes the following steps:
1) the rotating shaft rotates to drive the second connecting rod 20 to rotate, so that the first connecting rod 19 rotates, the first connecting rod 19 rotates to drive the irregular ball block 7 to rotate, the movable rod 21 can be pushed by utilizing the irregular shape of the surface of the irregular ball block 17, the movable rod moves leftwards when the convex surface of the irregular ball block 17 abuts against the movable rod 21, and the movable rod moves rightwards when the concave surface of the irregular ball block 17 abuts against the movable rod 21, so that the shot blasting pipe can swing leftwards and rightwards 6;
2) the moving rod 21 moves to push the shot blasting pipe 6 to swing left and right, so that shot blasting can evenly strike the surface of the gate plate 9, the surface of the gate plate 9 is cross-shaped, the mechanical strength, the wear resistance, the fatigue resistance and the corrosion resistance of the gate plate 9 can be improved by shot blasting, and liquid magazines can be prevented from being adhered to the surface of the gate plate 9 by the cross-shaped surface of the gate plate 9;
3) the used shot is flowed into the collection box 23 and can be recycled after collection.
The fourth step shown in fig. 2 and 5 comprises the following steps:
1) when the shot blasting is finished, the first connecting rod 19 and the second connecting rod 20 are disconnected, the trapezoidal grooves on the two sides of the moving strip are matched with the trapezoidal lugs of the bracket 28 to guide and limit, the control gear 26 rotates to be meshed with the gear on the surface of the moving strip 27, and the moving strip 27 is pushed to move into the shell 24;
2) the moving strip 27 is arranged below the adhesive pipeline 25, the adhesive flows into the groove of the moving strip 25 to the roller 29 at the moment, the squeezing roller rotates under the action of gravity when the adhesive in the groove reaches a certain weight, and the springs on two sides of the roller 29 are squeezed open, so that the adhesive flows to the surface of the gate plate 9 from between the two rollers 29 in a thin strip mode, and the adhesive is prevented from falling into the surface of the gate plate 9 once to cause excessive adhesive on the surface of the gate plate 9;
3) at the moment, the gate plate 9 rotates at a constant speed, and the adhesive uniformly flows into the surface of the gate plate 9;
fifthly, rotating the gate plate 9 into a drying box through a rotating column 30, and drying the adhesive on the surface of the gate plate 9;
as shown in fig. 6 and 7, step six, step seven, step eight, step nine and step ten, the sizing die 22 is placed in the valve body 10, the prepolymer is poured into the sizing die 22 through the pouring hole 8, the integral sizing die 22 and the valve body 10 are placed in a dryer for drying after pouring is completed, the whole body is placed in a vulcanization treatment device for vulcanization treatment after drying is completed, demolding is performed after vulcanization treatment is completed, the valve body 10 after demolding is placed in the vulcanization device for vulcanization after demolding is completed, the valve body 10 is taken out after treatment is completed, a polyurethane lining is formed on the inner surface of the valve body 10 at the moment, a lining polyurethane knife pouring flexible production process is designed according to the characteristics of a polyurethane material, the product processing and assembling cost is reduced, and the processing flexibility degree is greatly increased.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a wear-resisting inside lining polyurethane knife gate valve of two-way seal, includes valve body (10), its characterized in that: the valve is characterized in that a liquid flowing hole (17) is formed in the valve body (10), bosses (11) are respectively arranged on two sides of the liquid flowing hole (17), and lining polyurethane is arranged on the surface of the liquid flowing hole (17).
2. The bi-directional sealing wear-resistant lining polyurethane knife gate valve of claim 1, wherein: arc-shaped scraping blades (16) are arranged above the liquid flowing holes (17), a flashboard (9) is arranged in the middle of the valve body (10), and the flashboard (9) is matched with the arc-shaped scraping blades (16).
3. The bi-directional sealing wear-resistant lining polyurethane knife gate valve of claim 2, wherein: one of flashboard (9) is provided with valve rod (14), the surface of valve rod (14) is provided with valve-stem nut (15), the both sides of valve-stem nut (15) are provided with support (12) respectively, the top of support (12) is provided with hand wheel (13), hand wheel (13) and valve-stem nut (15) are threaded connection.
4. A processing technology of a bidirectional sealing wear-resistant lining polyurethane knife gate valve comprises the steps of firstly, laser cutting; clamping the flashboard; thirdly, sand throwing treatment is carried out on the surface of the flashboard blank; step four, gluing an adhesive; step five, entering a drying tunnel; step six, preheating and pouring the prepolymer; step seven, entering a drying tunnel; step eight, vulcanization treatment; step nine, demolding; step ten, post-vulcanization treatment.
5. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, characterized in that: and step one, mounting the required gate plate generation material on a laser-cut working table surface, and carrying out laser cutting on the gate plate (9).
6. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, is characterized in that: the second step comprises the following steps:
1) placing the cut gate plate (9) between the first quart claw (1) and the second claw (2);
2) the disc (4) is controlled to rotate 180 degrees, a circular boss (18) on the disc (4) rotates to the horizontal direction from the vertical direction, the first connecting rod (3) and the second connecting rod (5) are driven to rotate, and the first jaw (1) and the second jaw (2) are pulled to be opened to be closed to clamp the flashboard (9);
3) when the flashboard (9) is clamped by the first jaw (1) and the second jaw (2), the grooves of the first jaw (1) and the second jaw (2) are buckled in the shell (19) to fix the first jaw (1) and the second jaw (2);
4) and a motor of a rotating shaft at one side of the shell (19) controls the rotating shaft to drive the shell (19) to rotate at a constant speed, so that the flashboard (9) is driven to rotate.
7. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, characterized in that: the third step comprises the following steps:
1) the rotating shaft rotates to drive the second connecting rod (20) to rotate, so that the first connecting rod (19) rotates, the first connecting rod (19) rotates to drive the irregular ball block (7) to rotate, and the movable rod (21) can be pushed by utilizing the irregular shape of the surface of the irregular ball block (17);
2) the moving rod (21) moves to push the shot blasting pipe (6) to swing left and right, so that shot blasting can be evenly impacted on the surface of the gate plate (9), and the surface of the gate plate (9) is in a cross shape;
3) the used shot blast flows into a collecting box (23) and can be recycled after collection.
8. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, characterized in that: the fourth step comprises the following steps:
1) when shot blasting is finished, the first connecting rod (19) and the second connecting rod (20) are disconnected, the trapezoidal grooves on the two sides of the moving strip are matched with the trapezoidal lugs of the supporting frame (28) to guide and limit, the gear (26) is controlled to rotate to be meshed with the gear on the surface of the moving strip (27), and the moving strip (27) is pushed to move into the shell (24);
2) the moving strip (27) is arranged below the adhesive pipeline (25), the adhesive flows into the groove of the moving strip (27) and onto the roller (29), the roller (29) is extruded to rotate under the action of gravity when the adhesive in the groove reaches a certain weight, and springs on two sides of the roller (29) are extruded to be opened, so that the adhesive flows to the surface of the flashboard (9) from between the two rollers (29) in a thin strip mode;
3) at the moment, the gate plate (9) rotates at a constant speed, and the adhesive uniformly flows into the surface of the gate plate (9).
9. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, characterized in that: and step five, rotating the gate plate (9) into the drying box through the rotating column (30), and drying the adhesive on the surface of the gate plate (9).
10. The processing technology of the bi-directional sealing wear-resistant lining polyurethane knife gate valve according to claim 4, characterized in that: step six, step seven, step eight, step nine, step ten, put the sizing die (22) into valve body (10), pour into prepolymer into sizing die (22) through pouring hole (8), put whole sizing die (22) and valve body (10) into the drying-machine after pouring and dry, the whole is put into the vulcanization processing equipment and is carried out the vulcanization processing to the stoving completion, carry out the drawing of patterns after the vulcanization processing is accomplished, valve body (10) after drawing of patterns is put into the vulcanization processing equipment and is carried out the vulcanization after the drawing of patterns is accomplished, take out valve body (10) after the processing is accomplished, polyurethane inside lining is formed to the surface in valve body (10) this moment.
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| CN202011108780.3A CN112392975B (en) | 2020-10-16 | 2020-10-16 | Machining process of bidirectional-sealing wear-resistant lining polyurethane knife gate valve |
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| CN202011108780.3A CN112392975B (en) | 2020-10-16 | 2020-10-16 | Machining process of bidirectional-sealing wear-resistant lining polyurethane knife gate valve |
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| CN112392975B CN112392975B (en) | 2022-08-23 |
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|---|---|
| CN112392975B (en) | 2022-08-23 |
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Address after: 325000 No.8 Xingyu Road, Konggang New District, Longwan District, Wenzhou City, Zhejiang Province Applicant after: Qisheng Valve Co.,Ltd. Address before: 325000 No.8 Xingyu Road, Konggang New District, Longwan District, Wenzhou City, Zhejiang Province Applicant before: Wenzhou Chisun Valve Manufacture Co.,Ltd. |
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