CN212653748U

CN212653748U - Butterfly valve fluorine lining die

Info

Publication number: CN212653748U
Application number: CN202020909763.9U
Authority: CN
Inventors: 徐聘; 徐建强; 夏军; 沈裕华; 叶美琴
Original assignee: Suzhou Dongshan Anticorrosion Instrument Valve Co ltd
Current assignee: Suzhou Dongshan Anticorrosion Instrument Valve Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-03-05
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a butterfly valve fluorine lining die, which belongs to the technical field of valve fluorine lining processing, and comprises a lower die, wherein the lower end of the lower die is provided with a cylindrical cavity, the upper end of the lower die is provided with a plurality of rotating shaft holes which are arranged in an equidistant array, a pressing block rotating shaft is fixedly connected in the rotating shaft holes through a pressing block bearing, the upper end of the pressing block rotating shaft is fixedly connected with a pressing block, the lower end of the pressing block rotating shaft is fixedly connected with a pressing block gear, the pressing block gear is positioned in the cavity at the lower end of the lower die, the quick clamping and the disassembly of a valve body can be realized, a worm wheel is driven to rotate by a hexagonal bolt head at the front end of a rotating worm, so that the pressing block is driven to rotate through a transmission structure consisting of a driven gear and the pressing block gear, the tip of the pressing block is clamped on a lower end, the valve body is firmly fixed, the disassembly and the assembly are convenient, and the working efficiency is greatly improved.

Description

Butterfly valve fluorine lining die

Technical Field

The utility model relates to a valve lining fluorine processing technology field, more specifically say, relate to butterfly valve lining fluorine mould.

Background

The fluorine lining equipment adopts advanced scientific method and patent technology to integrate steel and plastic equipment into a whole, is a novel container, has the mechanical strength performance of steel products, and has the advantages of corrosion resistance of tetrafluoro, no scaling and difficult growth of microorganisms. The product has the advantages of ensuring the purity of the conveying medium and the like, and is the best corrosion-resistant product for replacing lining rubber, glass lining and glass fiber reinforced plastics at present. The service life of the pipeline exceeds that of a stainless steel pipeline, and the pipeline is an ideal anti-corrosion pipeline for conveying acid, alkali, salt, gas, ore pulp and the like. But the price is only one fourth of that of the stainless steel pipe, and the stainless steel pipe is extracted from various anticorrosive pipes;

the compression moulding technology for fluorine-lined valve includes such steps as putting a certain amount of fluoroplastic (powder, particles, fibres, flakes, chips, etc.) in mould cavity, closing, heating in heating furnace to a certain temp., and smelting under pressure to slowly fill the whole mould cavity to obtain the shape of mould cavity. Along with plasticization, mixing and dispersion in a mould, the melt gradually loses fluidity and becomes an infusible body structure to become a solid, and the mould is opened after being cooled to a certain temperature to form a finished product, thereby completing the mould pressing process.

In the existing butterfly valve fluorine lining processing process, the die and the valve body are connected through bolts, so that the installation is complex, the disassembly difficulty is high, and the butterfly valve processing efficiency and the finished product quality are greatly influenced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a butterfly valve lining fluorine mould, it can realize quick clamping and dismantlement valve body, hexagonal bolt head through rotatory worm front end drives the worm wheel and rotates, thereby drive the briquetting rotation through the transmission structure that driven gear and briquetting gear are constituteed, make the most advanced joint of briquetting on the lower extreme flange seat of valve body, and the screw-thread fit between lower extreme through the mold core and the mold core fixed orifices will go up the mould and compress tightly fixedly with the upper end of valve body, firmly fix the valve body, easy dismounting, and the work efficiency is greatly improved.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The butterfly valve fluorine lining die comprises a lower die, wherein a cylindrical cavity is formed in the lower end of the lower die, a plurality of rotating shaft holes are formed in the upper end of the lower die, the rotating shaft holes are arranged in an equidistant array mode, a pressing block rotating shaft is fixedly connected into each rotating shaft hole through a pressing block bearing, a pressing block is fixedly connected to the upper end of each pressing block rotating shaft, a pressing block gear is fixedly connected to the lower end of each pressing block rotating shaft, the pressing block gear is located in the cavity in the lower end of the lower die, a transmission rotating shaft is fixedly connected to the center of the upper end of the cavity of the lower die, a driven gear and a worm wheel are connected to the transmission rotating shaft in a key mode, the driven gear is located on the upper side of the worm wheel and meshed with the pressing block gears, the worm wheel is;

the valve body has been seted up at the upper end center of lower mould, and the upper end of lower mould has placed the valve body, threaded connection has the lower extreme of mold core in the mold core fixed orifices, the upper end of mold core passes through mold core bearing and last mould fixed connection, and the mold core is located fixedly connected with rubber mould on the outer wall of last mould downside, the upper end of mold core is located the top fixedly connected with stopper of last mould, and the upper end center fixedly connected with pressure interface of stopper.

Further, the briquetting passes through threaded connection in the upper end of briquetting pivot, and the clamp splice has been cup jointed to the upper end of briquetting pivot, the clamp splice is located between briquetting and the lower mould, and the outside of clamp splice offsets with the lower extreme outside of valve body, can adapt to not unidimensional valve body through changing the clamp splice for the suitability of mould is wider.

Further, the lower extreme of stopper is close to outside department fixedly connected with snap ring, and goes up the position that the upper end of mould corresponds the snap ring and seted up annular groove, annular groove and snap ring phase-match, annular groove and snap ring ensure the position stability of mold core, prevent the mold core skew, improve the finished product precision.

Furthermore, an upper die base plate is arranged between the lower end of the upper die and the upper end of the valve body in a cushioning mode, and the sealing performance between the upper die and the valve body is improved.

Furthermore, the upper end fixedly connected with tetrafluoro sealing pad of lower mould improves the resistance to wear of lower mould, improves mould life.

Furthermore, the unfolding spiral angle of the worm is smaller than the contact friction angle of the worm wheel and the worm, so that the worm wheel and the worm are self-locked and are not fixed at convenient positions.

Further, the mold core is hollow structure, and the inner wall of rubber mould is connected with the inner chamber of mold core, the upper end of mold core is connected with the pressure device output through pressure interface, can pressurize the rubber mould of mold core outer wall through pressure interface for the tetrafluoro inside lining is compressed tightly at the valve body inner wall.

Furthermore, thrust bearings are used for the pressing block bearing and the die core bearing, the pressing block bearing and the die core bearing are convenient for a die to use, and the valve body is fixed more firmly.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can realize quick clamping and dismantle the valve body, and the hexagonal bolt head through rotatory worm front end drives the worm wheel and rotates to drive the briquetting through the transmission structure that driven gear and briquetting gear are constituteed and rotate, make the most advanced joint of briquetting on the lower extreme flange seat of valve body, and the screw-thread fit through between the lower extreme of mold core and the mold core fixed orifices will go up the mould and compress tightly fixedly with the upper end of valve body, firmly fix the valve body, easy dismounting has improved work efficiency greatly.

(2) The briquetting passes through threaded connection in the upper end of briquetting pivot, and the upper end of briquetting pivot has cup jointed the clamp splice, and the clamp splice is located between briquetting and the lower mould, and the outside of clamp splice offsets with the lower extreme outside of valve body, can adapt to not unidimensional valve body through changing the clamp splice for the suitability of mould is wider.

(3) The lower extreme of stopper is close to outside department fixedly connected with snap ring, and goes up the position that the upper end of mould corresponds the snap ring and seted up annular groove, and annular groove and snap ring phase-match, annular groove and snap ring ensure the position stability of mold core, prevent the mold core skew, improve the finished product precision.

(4) An upper die base plate is arranged between the lower end of the upper die and the upper end of the valve body in a cushioning mode, and the sealing performance between the upper die and the valve body is improved.

(5) The upper end fixedly connected with tetrafluoro is sealed fills up, improves the resistance to wear of lower mould, improves mould life.

(6) The expansion helical angle of the worm is smaller than the contact friction angle of the worm wheel and the worm, so that the worm wheel and the worm are self-locked and are not fixed at convenient positions.

(7) The mold core is hollow structure, and the inner wall of rubber mould is connected with the inner chamber of mold core, and the upper end of mold core is passed through pressure interface and is connected with the pressure equipment output, can pressurize the rubber mould of mold core outer wall through pressure interface for the tetrafluoro inside lining is compressed tightly at the valve body inner wall.

(8) The briquetting bearing and the die core bearing use thrust bearings, and the briquetting bearing and the die core bearing facilitate the use of a die and fix the valve body more firmly.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

fig. 2 is a schematic top view of the middle and lower molds of the present invention;

FIG. 3 is a schematic view of a cross-sectional structure of the lower end of the middle and lower dies of the present invention;

FIG. 4 is a schematic perspective view of the mold core of the present invention;

fig. 5 is the structure schematic diagram of the lower die for clamping the valve body.

The reference numbers in the figures illustrate:

the die comprises a lower die 1, a rotating shaft hole 2, a pressing block rotating shaft 3, a clamping block 4, a pressing block 5, a pressing block bearing 6, a pressing block gear 7, a transmission rotating shaft 8, a driven gear 9, a worm wheel 10, a worm 11, a valve body 12, a die core 13, an upper die 14, a rubber die 15, a limiting block 16, a pressure interface 17, a die core bearing 18, a clamping ring 19, an upper die base plate 20 and a die core fixing hole 21.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-5, a fluorine lining die for a butterfly valve, referring to fig. 1, fig. 2 and fig. 5, comprises a lower die 1, a cylindrical cavity is formed at the lower end of the lower die 1, a plurality of rotating shaft holes 2 are formed at the upper end of the lower die 1, the plurality of rotating shaft holes 2 are arranged in an equidistant array, a tetrafluoro gasket is fixedly connected to the upper end of the lower die 1, the wear resistance of the lower die 1 is improved, the service life of the die is prolonged, a briquetting rotating shaft 3 is fixedly connected to the rotating shaft holes 2 through a briquetting bearing 6, a briquetting 5 is fixedly connected to the upper end of the briquetting rotating shaft 3, a briquetting gear 7 is fixedly connected to the lower end of the briquetting rotating shaft 3, the briquetting 5 is connected to the upper end of the briquetting rotating shaft 3 through a screw thread, a clamping block 4 is sleeved on the upper end of the briquetting rotating shaft 3, the clamping block 4 is located between the briquetting 5 and the lower, the applicability of the die is wider, and the briquetting gear 7 is positioned in a cavity at the lower end of the lower die 1;

referring to fig. 1 and 3, a transmission rotating shaft 8 is fixedly connected to the center of the upper end of a cavity of a lower die 1, a driven gear 9 and a worm wheel 10 are connected to the transmission rotating shaft 8 in a key manner, the driven gear 9 is located on the upper side of the worm wheel 10, the driven gear 9 is meshed with a plurality of briquetting gears 7, the worm wheel 10 is meshed with a worm 11, the worm 11 is fixedly connected to the side wall of the lower die 1 penetrating through the lower die 1, the front end of the worm 11 is fixedly connected with the head of a hexagonal bolt, and the expansion helix angle of the worm 11 is smaller than the contact friction angle between the worm wheel 10 and the worm 11, so that the worm wheel 10 and the;

referring to fig. 1 and 4, a mold core fixing hole 21 is formed in the center of the upper end of the lower mold 1, a valve body 12 is disposed at the upper end of the lower mold 1, the lower end of a mold core 13 is connected to the mold core fixing hole 21 through a thread, the upper end of the mold core 13 is fixedly connected to the upper mold 14 through a mold core bearing 18, a rubber mold 15 is fixedly connected to the outer wall of the mold core 13 located at the lower side of the upper mold 14, the mold core 13 is of a hollow structure, the inner wall of the rubber mold 15 is connected to the inner cavity of the mold core 13, the upper end of the mold core 13 is connected to the output end of a pressurizing device through a pressure port 17, the rubber mold 15 on the outer wall of the mold core 13 can be pressurized through the pressure port 17, so that the tetrafluoro lining is pressed against the inner wall of the valve body, an upper mold pad 20 is padded between the lower, and the center fixedly connected with pressure interface 17 in the upper end of stopper 16, the lower extreme of stopper 16 is close to outside department fixedly connected with snap ring 19, and go up the position that the upper end of mould 14 corresponds snap ring 19 and seted up annular groove, annular groove and snap ring 19 phase-match, annular groove and snap ring 19 ensure the position stability of mold core 13, prevent mold core 13 skew, improve the finished product precision, briquetting bearing 6 and mold core bearing 18 use footstep bearing, briquetting bearing 6 and mold core bearing 18 make things convenient for the mould to use, fix valve body 12 more firmly.

When the valve body 12 is installed, the lower end of the valve body 12 is clamped between clamping blocks 4 at the upper end of a lower die 1, the front end of a worm 11 is rotated through a wrench, a transmission rotating shaft 8 is driven to rotate through a worm wheel 10, a plurality of pressing block gears 7 are driven to rotate through a driven gear 9, the small end of a pressing block 5 is pressed on a flange seat at the lower end of the valve body 12, the lower end of the valve body 12 is fixed, the lower end of a mold core 13 is inserted from the upper end of the valve body 12, the lower end of the mold core 13 is aligned with a mold core fixing hole 21, a limiting block 16 is rotated, the lower end of the mold core 13 is screwed into the mold core fixing hole 21, the mold core 13 applies downward pressure to an upper mold 14 through the limiting block 16, the upper mold 14 is pressed on the upper end of the valve body 12, the valve body 12 is fixed in a mold, the limiting block 16 is directly rotated during, the hexagonal bolt head through rotatory worm front end drives the worm wheel and rotates to drive the briquetting through the transmission structure that driven gear and briquetting gear are constituteed and rotate, make the most advanced joint of briquetting on the lower extreme flange seat of valve body, and the screw-thread fit between lower extreme and the mold core fixed orifices through the mold core will go up the mould and compress tightly fixedly with the upper end of valve body, firmly fix the valve body, easy dismounting has improved work efficiency greatly.

The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. Butterfly valve lining fluorine mould, including lower mould (1), its characterized in that: the lower end of the lower die (1) is provided with a cylindrical cavity, the upper end of the lower die (1) is provided with a plurality of rotating shaft holes (2), the rotating shaft holes (2) are arranged in an equidistant array, a pressing block rotating shaft (3) is fixedly connected in the rotating shaft holes (2) through a pressing block bearing (6), a pressing block (5) is fixedly connected at the upper end of the pressing block rotating shaft (3), a pressing block gear (7) is fixedly connected at the lower end of the pressing block rotating shaft (3), the pressing block gear (7) is positioned in the cavity at the lower end of the lower die (1), a transmission rotating shaft (8) is fixedly connected at the center of the upper end of the cavity of the lower die (1), the transmission rotating shaft (8) is connected with a driven gear (9) and a worm wheel (10) in a key mode, the driven gear (9) is positioned at the upper side of the worm wheel (10), the driven gear (9) is meshed with the pressing, the worm (11) is fixedly connected to the side wall of the lower die (1) penetrating through the lower die (1), and the front end of the worm (11) is fixedly connected with the head of a hexagonal bolt;

mold core fixed orifices (21) have been seted up at the upper end center of lower mould (1), and valve body (12) have been placed to the upper end of lower mould (1), threaded connection has the lower extreme of mold core (13) in mold core fixed orifices (21), the upper end of mold core (13) is through mold core bearing (18) and last mould (14) fixed connection, and mold core (13) is located fixedly connected with rubber mold (15) on the outer wall of last mould (14) downside, the upper end of mold core (13) is located fixedly connected with stopper (16) of top department of last mould (14), and the upper end center fixedly connected with pressure interface (17) of stopper (16).

2. The butterfly valve fluorine lining mold of claim 1, wherein: briquetting (5) are through threaded connection in the upper end of briquetting pivot (3), and the upper end of briquetting pivot (3) has cup jointed clamp splice (4), clamp splice (4) are located between briquetting (5) and lower mould (1), and the outside of clamp splice (4) offsets with the lower extreme outside of valve body (12).

3. The butterfly valve fluorine lining mold of claim 1, wherein: the lower extreme of stopper (16) is close to outside department fixedly connected with snap ring (19), and goes up the position that the upper end of mould (14) corresponds snap ring (19) and seted up annular groove, annular groove and snap ring (19) phase-match.

4. The butterfly valve fluorine lining mold of claim 1, wherein: an upper die base plate (20) is padded between the lower end of the upper die (14) and the upper end of the valve body (12).

5. The butterfly valve fluorine lining mold of claim 1, wherein: the upper end of the lower die (1) is fixedly connected with a tetrafluoro gasket.

6. The butterfly valve fluorine lining mold of claim 1, wherein: the unfolding spiral angle of the worm (11) is smaller than the friction angle of the contact between the worm wheel (10) and the worm (11).

7. The butterfly valve fluorine lining mold of claim 1, wherein: the mold core (13) is of a hollow structure, the inner wall of the rubber mold (15) is connected with the inner cavity of the mold core (13), and the upper end of the mold core (13) is connected with the output end of the pressurizing device through a pressure interface (17).

8. The butterfly valve fluorine lining mold of claim 1, wherein: the press block bearing (6) and the die core bearing (18) use thrust bearings.