CN215282930U - Vulcanization rubber lining mold of butterfly valve body - Google Patents
Vulcanization rubber lining mold of butterfly valve body Download PDFInfo
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- CN215282930U CN215282930U CN202120845594.1U CN202120845594U CN215282930U CN 215282930 U CN215282930 U CN 215282930U CN 202120845594 U CN202120845594 U CN 202120845594U CN 215282930 U CN215282930 U CN 215282930U
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Abstract
The utility model discloses a butterfly valve body vulcanize lining rubber mold belongs to valve processing technology field. The rubber lining mold comprises a lower mold, a middle mold, an upper mold and two shaft hole insert rods, wherein the lower mold, the middle mold, the upper mold, a valve body and the shaft hole insert rods enclose a rubber lining mold cavity, a circular boss is coaxially arranged on the upper side of the middle mold, and a circular groove matched with the circular boss is coaxially arranged on the lower side of the upper mold; a plurality of guide holes are formed in the circular boss around the circle center of the circular boss, and a plurality of guide rods matched with the guide holes are arranged on the lower side of the circular groove; a metal sealing ring is arranged between the lower side of the outer edge of the upper die and the outer side of the upper flange of the valve body, the metal sealing ring is a circular ring matched with the upper flange, a plurality of spring slots are uniformly distributed on the upper side of the metal sealing ring around the circle center of the metal sealing ring, and a plurality of springs matched with the spring slots are arranged on the lower side of the outer edge of the upper die; when the upper die is installed, the metal sealing ring is pressed on the upper flange by the spring 13, the circular boss is inserted into the circular groove, the guide rod is inserted into the corresponding guide hole, and the spring is inserted into the corresponding spring slot.
Description
Technical Field
The utility model belongs to the technical field of the valve processing, in particular to butterfly valve body vulcanize rubber lining mould, especially relate to a vulcanize rubber lining mould of big specification valve body (diameter is greater than 1500 mm).
Background
For large-size valve bodies, vulcanization lining rubber can be carried out on the inner wall of the valve body and the inner side of the flange end face (according to requirements). The vulcanization lining of current butterfly valve body is glued the mould and is included the lower mould usually, well mould, go up mould and two shaft hole inserted bars etc, the lower mould, well mould and last mould are the ring structure (with the coaxial setting of valve body) and the shape cooperation of shape and lining, shaft hole inserted bar (pole) and the shaft hole cooperation of valve body and its shaft hole that passes the corresponding side insert and establish on well mould, two shaft hole inserted bars insert respectively and establish in the relative both sides of well mould and all follow the radial setting of valve body, the effect of shaft hole inserted bar has two: firstly, blocking the shaft hole, and secondly, centering the mold; the lower mould, the middle mould and the upper mould are respectively arranged on the lower part, the middle part and the upper part of the valve body, and the lower part, the middle part and the upper part of the valve body are enclosed into a rubber lining mould cavity together with the valve body and the shaft hole inserted bar, the upper side of the middle mould is coaxially provided with a circular boss, the lower side of the upper mould is coaxially provided with a circular groove matched with the circular boss (slightly larger than the circular boss), and the circular boss and the circular groove are arranged in a centering way so as to ensure the upper mould.
The existing rubber lining process comprises the following steps: when the mould is assembled to prepare a vulcanized valve seat, firstly, the rubber raw material is made into a small flat shape, then the small flat shape is manually placed into a rubber lining mould cavity of the mould, then the mould is installed, and finally the mould is placed on a vulcanizing machine for vulcanization.
The applicant finds that rubber easily overflows from the space between the upper die and the upper flange of the valve body in the processes of assembling and vulcanizing the upper die when the valve body is vulcanized and lined with rubber, and the valve body has the defects of rubber waste, poor vulcanization effect, cleaning after vulcanization and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the embodiment of the utility model provides a butterfly valve body vulcanize rubber lining mould, rubber spills over when can avoiding going up the mould installation and vulcanize. The technical scheme is as follows:
the embodiment of the utility model provides a vulcanization rubber lining mould of butterfly valve body, including lower mould 1, well mould 2, upper die 3 and two shaft hole inserted bars 4, shaft hole inserted bar 4 and the shaft hole cooperation of valve body 5 and its shaft hole that passes corresponding side insert and establish on well mould 3, lower mould 1, well mould 2 and upper die 3 locate the lower part, middle part and the upper portion of valve body 5 respectively and it encloses into the rubber lining die cavity with valve body 5 and shaft hole inserted bar 4, the upside of well mould 2 is coaxial to be equipped with circular boss 6, the downside of upper die 3 is coaxial to be equipped with circular slot 7 with circular boss 6 complex; a plurality of guide holes 8 are formed in the circular boss 6 around the circle center of the circular boss, and a plurality of guide rods 9 matched with the guide holes 8 are arranged on the lower side of the circular groove 7; a metal sealing ring 11 is arranged between the lower side of the outer edge of the upper die 3 and the outer side of an upper flange 10 of the valve body 5, the metal sealing ring 11 is a circular ring matched with the upper flange 10, a plurality of spring slots 12 are uniformly distributed on the upper side of the metal sealing ring around the circle center of the metal sealing ring, a plurality of springs 13 matched with the spring slots 12 are arranged on the lower side of the outer edge of the upper die 3, and the guide hole 8, the guide rod 9, the spring slots 12 and the springs 13 are all vertically arranged; when the upper die 3 is installed, the metal sealing ring 11 is pressed on the upper flange 10 by the spring 13, the circular boss 6 is inserted into the circular groove 7, the guide rod 9 is inserted into the corresponding guide hole 8, and the spring 13 is inserted into the corresponding spring slot 12.
Specifically, the guide hole 8 in the embodiment of the present invention is a circular hole, the guide rod 9 is a circular rod, and the spring insertion groove 12 is a circular groove.
Specifically, the number of the guide holes 8 and the guide rods 9 in the embodiment of the present invention is 4, and the number of the spring slots 12 and the number of the springs 13 are equal to each other and are all greater than 15.
Specifically, the metal sealing ring 11 in the embodiment of the present invention is a stainless steel ring, which is coaxially disposed with the upper flange 10, and has an outer diameter the same as that of the upper flange 10.
Specifically, middle mould 2 in the embodiment of the present invention is fixed on lower mould 1.
Preferably, the inner end of the shaft hole inserted rod 4 in the embodiment of the present invention is a three-step cylinder 14; a sealing surface forming die 15 is sleeved on a first step cylinder of the three-step cylinder 14, and a second step cylinder and a third step cylinder of the three-step cylinder are inserted on the middle die 2; the sealing surface forming die 15 is a circular ring, the outer diameter of the sealing surface forming die is the same as that of the shaft hole inserted bar 4, the peripheral surface of the sealing surface forming die is a corrugated surface arranged along the axis direction of the sealing surface forming die, and the corrugated surface is arranged between the shaft hole inserted bar 4 and the middle die 2; two step circular holes 16 matched with the three step cylinders 14 are arranged at two sides of the middle die 2 along the radial direction.
Preferably, the shaft hole inserted rod 4 in the embodiment of the present invention is coaxially provided with a heating structure 17, and a pull rod hole 18 is provided outside and outside the valve body 5 along the radial direction thereof.
Preferably, the embodiment of the present invention provides an annular groove 19 is provided on the upper side of the upper die 3 and around the circular groove 7, the annular groove 19 is provided coaxially with the upper die 3 and is provided with a plurality of reinforcing ribs 20 along the radial direction of the upper die 3, and the guide rod 9 is fixed on the reinforcing ribs 20.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides a rubber lining mould for the vulcanization of a butterfly valve body, which can avoid the rubber overflow when the upper mould is installed and vulcanized; specifically, the guide hole and the guide rod ensure that the upper die always moves downwards just opposite to the middle die, and the metal sealing ring is always pressed on the upper flange by matching with the spring.
Drawings
Fig. 1 is a schematic structural diagram of a vulcanized rubber lining mold of a butterfly valve body provided by an embodiment of the present invention;
fig. 2 is a top view of a vulcanized rubber lining mold of a butterfly valve body provided by an embodiment of the present invention;
fig. 3 is a side view of a vulcanized rubber lining mold of a butterfly valve body provided by an embodiment of the present invention;
fig. 4 is a cross-sectional view of a vulcanized rubber lining mold of a butterfly valve body provided by the embodiment of the invention;
FIG. 5 is a schematic view of the upper die and valve body combination;
FIG. 6 is a schematic view of a partial structure of a middle mold;
FIG. 7 is a schematic view of the construction of the shaft hole insert rod;
fig. 8 is a schematic structural view of a seal surface forming die.
In the figure: the device comprises a lower die 1, a middle die 2, an upper die 3, a 4-shaft hole inserted rod, a 5-valve body, a 6-circular boss, a 7-circular groove, a 8-guide hole, a 9-guide rod, a 10-upper flange, 11-metal sealing rings, 12-spring slots, 13-springs, 14-three-step stepped cylinders, 15-sealing-surface forming dies, 16-two-step stepped circular holes, 17-heating structures, 18-pull-rod holes, 19-ring grooves and 20-reinforcing ribs.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-8, the embodiment of the utility model provides a butterfly valve body vulcanize lining rubber mold, including lower mould 1, well mould 2, go up mould 3 and two shaft hole inserted bars 4 etc, shaft hole inserted bar 4 and valve body 5's shaft hole cooperation and its shaft hole that passes corresponding side insert and establish on well mould 3 (middle part), lower mould 1, well mould 2 and last mould 3 locate the lower part of valve body 5 respectively, middle part and upper portion and its enclose into lining rubber mold cavity with valve body 5 and shaft hole inserted bar 4, well mould 2's the coaxial circular boss 6 that is equipped with of upside, go up the coaxial circular groove 7 with circular boss 6 complex that is equipped with of downside of mould 3. The structure is basically the same as that of the existing vulcanized rubber lining die, and the difference is that: in this embodiment, the circular boss 6 is provided with a plurality of guide holes 8 (located on the same circle concentric with the circular boss 6) around the center of the circle, and the lower side of the circular groove 7 (top) is provided with a plurality of guide rods 9 (slightly smaller than the guide holes 8, and each guide hole 8 is correspondingly provided with one guide rod 9) matched with the guide hole 8. Go up and be equipped with metal seal ring 11 between the outer fringe downside of mould 3 and the (terminal surface) outside of the last flange 10 of valve body 5, metal seal ring 11 is for the ring and its upper side wall with last flange 10 complex have a plurality of spring slot 12 (be located same and the concentric circle of last flange 10) around its centre of a circle evenly distributed, the outer fringe downside of going up mould 3 is equipped with a plurality of and spring slot 12 complex spring 13 (every spring slot 12 corresponds and sets up a spring 13), bullport 8, guide bar 9, spring slot 12 and the equal vertical setting of spring 13. When the upper die 3 is installed, the metal sealing ring 11 is pressed on the upper flange 10 by the spring 13, the circular boss 6 is inserted into the circular groove 7, the guide rod 9 is inserted into the corresponding guide hole 8, and the spring 13 is inserted into the corresponding spring slot 12.
Specifically, referring to fig. 1 to 5, the guide hole 8 in the embodiment of the present invention is a circular hole, the guide rod 9 is a circular rod, and the spring insertion groove 12 is a circular groove.
Specifically, referring to fig. 1 to 5, the number of the guide holes 8 and the guide rods 9 in the embodiment of the present invention is 4 (the included angle between adjacent guide holes is 90 °), and the number of the spring slots 12 and the number of the springs 13 are equal to each other and are greater than 15 (uniformly distributed) to ensure the effect.
Specifically, the metal sealing ring 11 in the embodiment of the present invention is a stainless steel ring, which is disposed coaxially with the upper flange 10, and has an outer diameter the same as that of the upper flange 10, and an inner side of the stainless steel ring is outside a convex ring (outside of the rubber lining on the end surface of the upper flange 10) on the upper flange 10.
Specifically, referring to fig. 4, the middle mold 2 in the embodiment of the present invention is fixed to the lower mold 1.
Preferably, referring to fig. 1, 3-5 and 7-8, the inner end of the shaft-hole inserted rod 4 in the embodiment of the present invention is a three-step cylinder 14 (the diameter gradually decreases from the outside to the inside). The first-step stepped cylinder (counted from outside to inside, and the rear same) of the third-step stepped cylinder 14 is sleeved with a (coaxially fixed) sealing surface forming die 15 for forming a sealing surface on the valve body 5, and the second-step and third-step stepped cylinders thereof are inserted on the middle die 2. The sealing surface forming die 15 is a circular ring (coaxially arranged with the shaft hole inserted bar 4), the outer diameter (wave crest) of the sealing surface forming die is the same as the outer diameter of the shaft hole inserted bar 4 (outside), the outer peripheral surface of the sealing surface forming die is a corrugated surface (the shape of the corrugated surface is matched with the sealing surface to be formed) arranged along the axis direction of the sealing surface forming die, and the sealing surface forming die is arranged between the shaft hole inserted bar 4 (the step surface of the first step) and the middle die 2. Two-step stepped circular holes 16 matched with three-step stepped cylinders 14 (second-step and third-step stepped cylinders) are radially arranged on two sides (the included angle between the two sides is 180 degrees) of the middle die 2.
Preferably, referring to fig. 1, 3-5 and 7, a heating structure 17 (e.g., a heating rod) is coaxially disposed inside the shaft-hole inserted rod 4 in the embodiment of the present invention, and a pull rod hole 18 (a pull rod is inserted to take out the shaft-hole inserted rod 4, with or without penetrating the heating structure 17) is disposed outside and outside the valve body 5 along a radial direction thereof.
Preferably, referring to fig. 1 and 2, the upper side of the upper mold 3 and surrounding the circular groove 7 in the embodiment of the present invention is provided with a ring groove 19 to reduce the weight of the upper mold 3, the ring groove 19 is coaxially arranged with the upper mold 3 and is provided therein with a plurality of reinforcing ribs 20 along the radial direction of the upper mold 3 to enhance the strength of the upper mold 3, and the upper portion of the guide rod 9 (where the corresponding position is provided with the reinforcing ribs 20, the number of the reinforcing ribs 20 is 8) is fixed on the reinforcing ribs 20.
In this embodiment, "first", "second", and "third" only have a distinguishing function, and have no other special meaning.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The vulcanization rubber lining mold of the butterfly valve body comprises a lower mold (1), a middle mold (2), an upper mold (3) and two shaft hole insert rods (4), wherein the shaft hole insert rods (4) are matched with the shaft holes of the valve body (5) and penetrate through the shaft holes on the corresponding sides and are inserted in the middle mold (3), the lower mold (1), the middle mold (2) and the upper mold (3) are respectively arranged at the lower part, the middle part and the upper part of the valve body (5) and enclose a rubber lining mold cavity with the valve body (5) and the shaft hole insert rods (4), a circular boss (6) is coaxially arranged at the upper side of the middle mold (2), and a circular groove (7) matched with the circular boss (6) is coaxially arranged at the lower side of the upper mold (3); the device is characterized in that a plurality of guide holes (8) are formed in the circular boss (6) around the circle center of the circular boss, and a plurality of guide rods (9) matched with the guide holes (8) are arranged on the lower side of the circular groove (7); a metal sealing ring (11) is arranged between the lower side of the outer edge of the upper die (3) and the outer side of an upper flange (10) of the valve body (5), the metal sealing ring (11) is a circular ring matched with the upper flange (10), a plurality of spring slots (12) are uniformly distributed on the upper side of the metal sealing ring around the circle center of the metal sealing ring, a plurality of springs (13) matched with the spring slots (12) are arranged on the lower side of the outer edge of the upper die (3), and the guide hole (8), the guide rod (9), the spring slots (12) and the springs (13) are vertically arranged; when the upper die (3) is installed, the metal sealing ring (11) is pressed on the upper flange (10) by a spring (13), the circular boss (6) is inserted into the circular groove (7), the guide rod (9) is inserted into the corresponding guide hole (8), and the spring (13) is inserted into the corresponding spring slot (12).
2. The vulcanization lining rubber mold of a butterfly valve body according to claim 1, characterized in that the guide hole (8) is a round hole, the guide rod (9) is a round rod, and the spring insertion groove (12) is a round groove.
3. The vulcanization lining rubber mold of butterfly valve body according to claim 1, characterized in that the number of guide holes (8) and guide rods (9) is 4, the number of spring slots (12) and springs (13) is equal and is greater than 15.
4. The vulcanization lining rubber mold of a butterfly valve body according to claim 1, characterized in that the metal sealing ring (11) is a stainless steel ring, which is arranged coaxially with the upper flange (10) and has the same outer diameter as the upper flange (10).
5. The vulcanization lining rubber mold of the butterfly valve body according to claim 1, characterized in that the middle mold (2) is fixed on the lower mold (1).
6. The vulcanization lining rubber mold of butterfly valve body of claim 1, characterized in that, the inner end of said shaft hole inserted link (4) is a three-step cylinder (14); a sealing surface forming die (15) is sleeved on a first step cylinder of the third step cylinder (14), and a second step cylinder and a third step cylinder of the third step cylinder are inserted on the middle die (2); the sealing surface forming die (15) is a circular ring, the outer diameter of the sealing surface forming die is the same as that of the shaft hole inserted bar (4), the peripheral surface of the sealing surface forming die is a corrugated surface arranged along the axis direction of the sealing surface forming die, and the sealing surface forming die is arranged between the shaft hole inserted bar (4) and the middle die (2); two step circular holes (16) matched with the three step cylinders (14) are arranged along the radial direction of the two sides of the middle die (2).
7. The vulcanization lining rubber mold of butterfly valve body of claim 6, characterized in that, the shaft hole inserted rod (4) is provided with a heating structure (17) coaxially therein, and outside the valve body (5) is provided with a pull rod hole (18) along its radial direction.
8. The vulcanization lining rubber mold of butterfly valve body according to claim 1, characterized in that the upper side of the upper mold (3) and around the circular groove (7) is provided with a ring groove (19), the ring groove (19) is coaxial with the upper mold (3) and inside it is provided with a plurality of ribs (20) along the radial direction of the upper mold (3), and the guide rod (9) is fixed on the ribs (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120845594.1U CN215282930U (en) | 2021-04-23 | 2021-04-23 | Vulcanization rubber lining mold of butterfly valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120845594.1U CN215282930U (en) | 2021-04-23 | 2021-04-23 | Vulcanization rubber lining mold of butterfly valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215282930U true CN215282930U (en) | 2021-12-24 |
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ID=79537679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120845594.1U Active CN215282930U (en) | 2021-04-23 | 2021-04-23 | Vulcanization rubber lining mold of butterfly valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215282930U (en) |
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2021
- 2021-04-23 CN CN202120845594.1U patent/CN215282930U/en active Active
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