CN116372097A

CN116372097A - Anti-deformation control device and control method for precisely-cast butterfly valve body

Info

Publication number: CN116372097A
Application number: CN202310295868.8A
Authority: CN
Inventors: 戈怀民; 倪国勇; 曹峤; 杨建�; 藤征楠
Original assignee: Jiangsu Wanheng Casting Industry Co ltd
Current assignee: Jiangsu Wanheng Casting Industry Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-07-04
Anticipated expiration: 2043-03-23
Also published as: CN116372097B

Abstract

The utility model provides a fine casting butterfly valve body anti-deformation controlling means and control method thereof, includes the cooling tank, the cooling chamber has been seted up to the cooling tank inside, this cooling chamber upper end is open, and be equipped with first rotor in cooling chamber upper end opening part, be equipped with the second rotor in cooling chamber bottom, it is equipped with the conveyer belt to surround outside through first rotor and second rotor, this conveyer belt outside is equipped with a plurality of fixture, the outer end of this first rotor middle part pivot is equipped with first drive wheel, this first drive wheel passes through the conveyer belt and connects on the second drive wheel, this second drive wheel is connected at driving motor, this driving motor installs on the cooling tank lateral wall. The wax pattern is driven by the conveying belt to be dynamically cooled in the cooling box, namely, in the cooling process, the wax pattern can move up and down and turn over, and the outside of the wax pattern and the cooling liquid generate certain friction, so that the heat exchange is more facilitated, and the wax pattern is further promoted to be rapidly cooled.

Description

Anti-deformation control device and control method for precisely-cast butterfly valve body

Technical Field

The invention relates to the technical field of butterfly valve casting, in particular to an anti-deformation control device and method for a precisely-cast butterfly valve body.

Background

In order to meet the precision casting requirement of the butterfly valve, a wax casting method is adopted in the conventional mode at present, namely, the wax pattern of the butterfly valve is cast firstly, sand is attached after accurate correction, the wax is melted out to form a required model after die copying, and a finished product is taken out after the sand die is destroyed after pouring. In the process, after the wax pattern is cast, cooling treatment is required due to higher temperature.

The large-caliber butterfly valve body is structurally characterized in that the flange of the valve rod of the butterfly valve body and the inner cavity of the valve body deform in the wax-type cooling production process, so that the size of a casting does not meet the requirement of a casting diagram, the flange is out-of-round and deformed, the inner cavity of the valve body contracts, further, the casting is difficult to reshape to a qualified size, scrapping is caused, the manufacturing cost is increased, and the delivery period is prolonged.

In order to solve the problems, the invention provides an anti-deformation control device and a control method for a precisely cast butterfly valve body.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the problems in the prior art, adapt to the actual needs, and provide an anti-deformation control device and a control method for a precisely cast butterfly valve body, so as to solve the technical problems.

(2) Technical proposal

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the anti-deformation control device for the precision casting butterfly valve body comprises a cooling box, wherein a cooling cavity is formed in the cooling box, the upper end of the cooling cavity is open, a first rotating wheel is arranged at the opening of the upper end of the cooling cavity, a second rotating wheel is arranged at the bottom of the cooling cavity, a transmission belt is arranged outside the transmission belt in a surrounding manner through the first rotating wheel and the second rotating wheel, a plurality of clamping mechanisms are arranged outside the transmission belt, a first driving wheel is arranged at the outer end of a rotating shaft in the middle of the first rotating wheel and connected to a second driving wheel through a transmission belt, the second driving wheel is connected to a driving motor, and the driving motor is arranged on the outer side wall of the cooling box; the driving belt is provided with a protection component on the outer side, the upper end of the protection component is provided with a positioning wheel, and the positioning wheel is arranged at the outer end of the first driving wheel.

Preferentially, the clamping mechanism comprises a top sleeve arranged on the outer side wall of the transmission belt, a plurality of strip-shaped grooves are uniformly formed in the side wall of the top sleeve, a top block is arranged on the outer side wall of the top sleeve in a surrounding manner, and a conical plug is arranged in the middle of the top sleeve; the support plate that top cover one side was equipped with two and arranges from top to bottom, and the guide way has been seted up to one side of this backup pad middle part towards top cover, has seted up on this guide way inside wall with backup pad length direction parallel arrangement's first bar hole, has seted up on this guide way lateral wall with backup pad length direction slope setting's second bar hole, is equipped with the depression bar between two backup pads, and the both ends alternates in first bar downthehole about the depression bar, the downthehole slip of second bar is equipped with the roof, and connects through the flexible band between depression bar and the roof.

Preferentially, the protection subassembly includes the guard bar, this guard bar up end is equipped with the card axle to the locating wheel, this card axle cooperates with the draw-in groove around setting up at the locating wheel periphery, this guard bar lower extreme rotation is connected with the push away the wheel, this one end of push away wheel middle part pivot is equipped with pushes away the frame, this push away the frame middle part and slides and wear to be equipped with the gag lever post, this push away the vertical guide bar that is equipped with of frame lower extreme, this guide bar wears to establish in the uide bushing, this uide bushing is established on the cooler bin lateral wall, and the peripheral cover of guide bar in uide bushing top is equipped with first spring, this guide bar lower extreme is equipped with swing handle, this cooler bin lateral wall edge is equipped with the shelves pole.

Preferably, the protective bar has a first corner portion which is bent toward the inside of the belt and a second corner portion which is bent toward the outside of the belt; a second spring is arranged between the two opposite first corner parts, and a baffle shaft is arranged on the inner side of the first corner parts.

Preferably, the first rotating wheel and the second rotating wheel are both sprockets, and sprocket tooth grooves which are matched and connected with the sprockets are formed in the edges of the two sides of the width direction of the conveying belt.

Preferentially, the inner side of the push wheel is provided with a limit roller.

A control method of an anti-deformation control device of a precision casting butterfly valve body comprises the following steps:

firstly, horizontally placing a butterfly valve wax pattern, sleeving an inner cavity of a valve body of the butterfly valve wax pattern into the periphery of a top sleeve, clamping a valve rod of the butterfly valve wax pattern between two supporting plates, enabling the inner side of the valve rod of the butterfly valve wax pattern to abut against a pressing rod, continuously pushing the pressing rod along with the wax pattern to move inwards along a first strip-shaped hole, simultaneously, pulling a top plate by the pressing rod through a flexible belt, enabling the top plate to move inwards along a second strip-shaped hole, enabling the second strip-shaped hole to be obliquely arranged, further enabling the top plate to move inwards while facing the wax pattern until the top plate is tightly pressed on the side part where the wax pattern valve body and the valve rod meet, then pushing the top sleeve into the top sleeve through a conical plug in a rotating mode, outwards expanding the top sleeve, and further enabling the top block to prop against the inner cavity wall of the butterfly valve wax pattern, and limiting the position of the wax pattern. In the process of clamping the valve rod of the wax-type butterfly valve between the two support plates, the valve rod is propped against the pressure rod and is attached to the outer side surface of the pressure rod, in the process of continuously pushing the wax-type butterfly valve into the valve rod, the pressure rod does not move relatively before the valve rod and the pressure rod, and further, the appearance of the wax-type valve rod is not damaged, meanwhile, the flexible belt connected through the pressure rod pulls the top plate to move inwards, and the top plate is gradually compressed on the plane where the valve body is connected with the valve rod (the top plate is compressed without being excessively, so that the outside of the wax-type is prevented from being damaged), and the flange connected with the valve rod is propped against the outer side surface of the support plate;

step two, after the wax pattern above the transmission belt is fixed, the swing handle swings by a certain angle, the limit of the stop lever to the swing handle is released, the pushing frame is lifted up through the rebound action of the first spring, the transmission belt is in an inverted V shape, and then the transmission belt is extruded through the pushing wheel to play a tensioning role, and meanwhile, the protection rod is lifted up under the pushing of the pushing frame, so that the limit of the clamping shaft to the positioning wheel is released, and the transmission belt is restarted. When the conveyor belt is required to stop running, the swing handle is pressed down.

(3) The beneficial effects are that:

A. and (3) injecting cooling liquid into the cooling cavity of the cooling box, and cooling the wax pattern by the cooling liquid. At present, the conventional wax pattern cooling method simply puts the wax pattern in cooling liquid for treatment, the cooling efficiency is lower, and the wax pattern is deformed due to the physical phenomenon of thermal expansion and cold contraction in the cooling process. Particularly, the problem that the flange of the valve rod hole and the inner cavity of the valve body of the large-specification butterfly valve body are easy to deform in the cooling process is solved. According to the invention, the butterfly valve wax pattern is horizontally placed, the inner cavity of the valve body is sleeved on the periphery of the top sleeve, the valve rod is clamped between the two supporting plates, the inner side of the valve rod of the butterfly valve wax pattern is abutted against the pressure rod, the pressure rod moves inwards along the first strip-shaped hole along with the continuous pushing of the wax pattern, meanwhile, the pressure rod pulls the top plate by using the flexible belt, so that the top plate moves inwards along the second strip-shaped hole, and further, the top plate moves towards the wax pattern while moving inwards until the top plate is pressed on the side part where the wax pattern valve body and the valve rod are connected, then the conical plug is rotationally pushed into the top sleeve to expand the top sleeve outwards, and further, the top block is utilized to prop against the inner cavity wall of the butterfly valve, so that the position of the wax pattern is limited to shrink, and deformation of the valve rod and the valve body inner cavity of the wax pattern butterfly valve due to cold shrinkage can be effectively avoided in the process of putting the wax pattern into cooling liquid. In addition, the wax pattern is driven by the conveying belt to be dynamically cooled in the cooling box, namely, in the cooling process, the wax pattern can move up and down and turn over, and certain friction is generated between the outside of the wax pattern and cooling liquid, so that the heat exchange is facilitated, and the wax pattern is further promoted to be rapidly cooled.

B. Because of the low hardness of wax, deformation is easily generated when the wax is excessively pressed and rubbed from the outside. In the scheme of the invention, in the process of clamping the valve rod of the wax-type butterfly valve between the two supporting plates, the valve rod is propped against the compression rod and is attached to the outer side surface of the compression rod, in the process of continuously pushing the wax-type butterfly valve, the compression rod does not move relatively before the compression rod, and further, the compression rod cannot damage the appearance of the wax-type butterfly valve, meanwhile, the flexible belt connected through the compression rod pulls the top plate to move inwards, and because the top plate moves in the inclined hole, the top plate can be gradually compressed on the plane where the valve body is connected with the valve rod (the compression can be carried out without excessively, the damage to the outside of the wax-type butterfly valve is avoided), and the flange connected with the valve rod is propped against the outer side surface of the supporting plate, so that the valve rod is propped up, and the deformation of the valve rod and the flange caused by cold shrinkage in the cooling process is avoided. The fixing and mounting of the wax pattern are rapid and convenient, and the outside of the wax pattern is not damaged.

C. When the wax pattern is fixed, the transmission belt in the running process is required to be stopped, and after a plurality of fixed positions outside the transmission belt are fixed on the wax-type butterfly valve, the transmission belt is required to be run. In the scheme of the invention, the transmission belt is loosely wound on the first driving wheel and the second driving wheel, namely, the transmission belt can not run under the condition of no external force, the swing handle is blocked below the blocking rod, and the positioning wheel can be limited to rotate through the clamping shaft at the moment, so that the position of the first rotating wheel is fixed, the transmission belt is prevented from rotating, and the wax pattern is conveniently fixed through the clamping mechanism. After the wax-type fixing position above the transmission belt is set, the swing handle swings by a certain angle, the limit of the stop lever to the swing handle is released, the push frame is lifted up through the rebound action of the first spring, the transmission belt is in an inverted V shape, the transmission belt is extruded through the push wheel to play a tensioning role, and meanwhile, the protection lever is lifted up under the push of the push frame, so that the limit of the clamping shaft to the positioning wheel is released, and the transmission belt is restarted. When the conveyor belt is required to stop running, the swing handle is pressed down.

D. Through first corner and the second corner on the guard bar, can play the guard action to the drive belt, avoid the drive belt to stop when constantly opening, because of the abrupt change of power, make the drive belt collapse outward, and cause equipment can not normally work, the condition emergence of accidental injury staff even.

Drawings

FIG. 1 is a schematic perspective view of an anti-deformation control device for a precisely cast butterfly valve body;

FIG. 2 is a cross-sectional view of an anti-deformation control device for a precision casting butterfly valve body according to the invention;

FIG. 3 is a schematic diagram of the positioning wheel of the fine casting butterfly valve body anti-deformation control device;

FIG. 4 is a schematic diagram of the structure of a push wheel of the fine casting butterfly valve body anti-deformation control device;

FIG. 5 is a schematic view of the structure of a support plate in the mounted state of a wax-type butterfly valve of the fine casting butterfly valve body deformation preventing control device of the invention;

FIG. 6 is a schematic diagram of the structure of a compression bar in the mounted state of a wax-free butterfly valve of the fine casting butterfly valve body deformation preventing control device of the invention.

The reference numerals are as follows:

the device comprises a cooling box, a first rotating wheel, a second rotating wheel, a 4-conveying belt, a 5-clamping mechanism, a 51-jacking sleeve, a 52-strip-shaped groove, a 53-jacking block, a 54-conical plug, a 55-supporting plate, a 56-guide groove, a 57-first strip-shaped hole, a 58-second strip-shaped hole, a 59-pressing rod, a 60-top plate, a 6-first driving wheel, a 7-conveying belt, a 8-second driving wheel, a 9-driving motor, a 10-protection component, a 101-protection rod, 1011-first corner parts, 1012-second corner parts, a 102-clamping shaft, a 103-pushing wheel, a 104-pushing frame, a 105-limiting rod, a 106-guide rod, a 107-guide sleeve, a 108-first spring, a 109-swinging handle, a 200-blocking rod, a 201-second spring, a 202-blocking shaft, a 203-limiting roller and a 11-positioning wheel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

The invention is further illustrated below with reference to figures 1-6 and examples:

in this embodiment, as shown in fig. 1-6, a deformation control device for a precision casting butterfly valve body comprises a cooling box 1, wherein a cooling cavity is formed inside the cooling box 1, the upper end of the cooling cavity is open, a first rotating wheel 2 is arranged at the opening of the upper end of the cooling cavity, a second rotating wheel 3 is arranged at the bottom of the cooling cavity, a transmission belt 4 is wound around the periphery of the first rotating wheel 2 and the second rotating wheel 3, a plurality of clamping mechanisms 5 are arranged outside the transmission belt 4, a first driving wheel 6 is arranged at the outer end of a middle rotating shaft of the first rotating wheel 2, the first driving wheel 6 is connected to a second driving wheel 8 through a transmission belt 7, the second driving wheel 8 is connected to a driving motor 9, and the driving motor 9 is arranged on the outer side wall of the cooling box 1; the outside of the driving belt 7 is provided with a protection component 10, the upper end of the protection component 10 is provided with a positioning wheel 11, and the positioning wheel 11 is arranged at the outer end of the first driving wheel 6. The cooling chamber of the cooling tank 1 is filled with a cooling liquid, and the wax pattern is cooled by the cooling liquid. At present, the conventional wax pattern cooling method simply puts the wax pattern in cooling liquid for treatment, the cooling efficiency is lower, and the wax pattern is deformed due to the physical phenomenon of thermal expansion and cold contraction in the cooling process. Particularly, the problem that the flange of the valve rod hole and the inner cavity of the valve body of the large-specification butterfly valve body are easy to deform in the cooling process is solved. In the invention, the butterfly valve wax pattern is horizontally placed, the inner cavity of the valve body is sleeved on the periphery of the top sleeve 51, the valve rod is clamped between the two supporting plates 55, the inner side of the valve rod of the butterfly valve wax pattern is abutted against the pressure rod 59, the pressure rod 59 moves inwards along the first strip-shaped hole 57 along with the continuous pushing of the wax pattern, meanwhile, the pressure rod 59 pulls the top plate 60 by using the flexible belt, the top plate 60 moves inwards along the second strip-shaped hole 58, and further, the top plate 60 moves inwards while facing the wax pattern until the top plate 60 is tightly pressed on the side part where the wax pattern valve body and the valve rod are connected, then the conical plug 54 is rotationally pushed into the top sleeve 51 to expand the top sleeve 51 outwards, and further, the top block 53 is abutted against the inner cavity wall of the wax pattern of the butterfly valve, so that the positions of the wax pattern are limited, and deformation of the valve rod and the inner cavity of the wax pattern butterfly valve can be effectively avoided in the process of putting the wax pattern into cooling liquid for cooling treatment. In addition, the wax pattern is driven by the conveying belt 4 to be dynamically cooled in the cooling box 1, namely, the wax pattern can move up and down and turn over in the cooling process, and certain friction is generated between the outside of the wax pattern and the cooling liquid, so that the heat exchange is facilitated, and the wax pattern is further promoted to be rapidly cooled.

In this embodiment, the clamping mechanism 5 includes a top cover 51 disposed on an outer sidewall of the conveyor belt 4, a plurality of strip-shaped grooves 52 are uniformly distributed on the sidewall of the top cover 51, a top block 53 is disposed around the outer sidewall of the top cover 51, and a conical plug 54 is disposed in the middle of the top cover 51; two supporting plates 55 are arranged up and down on one side of the top sleeve 51, a guide groove 56 is formed in the middle of the supporting plate 55 and faces one side of the top sleeve 51, a first strip-shaped hole 57 which is parallel to the length direction of the supporting plate 55 is formed in the inner side wall of the guide groove 56, a second strip-shaped hole 58 which is inclined to the length direction of the supporting plate 55 is formed in the outer side wall of the guide groove 56, a pressing rod 59 is arranged between the two supporting plates 55, the upper end and the lower end of the pressing rod 59 are inserted into the first strip-shaped hole 57, a top plate 60 is arranged in the second strip-shaped hole 58 in a sliding mode, and the pressing rod 59 is connected with the top plate 60 through a flexible belt. Because of the low hardness of wax, deformation is easily generated when the wax is excessively pressed and rubbed from the outside. In the scheme of the invention, in the process of clamping the valve rod of the wax-type butterfly valve between the two support plates 55, the valve rod is abutted against the compression rod 59 and is attached to the outer side surface of the compression rod 59, in the process of continuously pushing the wax-type butterfly valve, the compression rod 59 does not cause damage to the appearance of the wax-type butterfly valve before the compression rod 59, meanwhile, the flexible belt connected through the compression rod 59 pulls the top plate 60 to move inwards, and the top plate 60 gradually presses on the plane where the valve body and the valve rod are connected (pressing can be performed without damaging the outside of the wax-type butterfly valve excessively), and the flange connected with the valve rod is abutted against the outer side surface of the support plate 55, so that the valve rod is braced tightly, and the valve rod and the flange are prevented from deforming due to cold shrinkage in the cooling process. The fixing and mounting of the wax pattern are rapid and convenient, and the outside of the wax pattern is not damaged.

In this embodiment, the protection assembly 10 includes a protection rod 101, a clamping shaft 102 is disposed on an upper end of the protection rod 101 facing the positioning wheel 11, the clamping shaft 102 is matched with a clamping groove around the periphery of the positioning wheel 11, a push wheel 103 is rotatably connected to a lower end of the protection rod 101, a push frame 104 is disposed at one end of a middle rotating shaft of the push wheel 103, a limit rod 105 is slidably disposed in the middle of the push frame 104, a guide rod 106 is vertically disposed at a lower end of the push frame 104, the guide rod 106 is disposed in a guide sleeve 107 in a penetrating manner, the guide sleeve 107 is disposed on a side wall of the cooling tank 1, a first spring 108 is disposed on a periphery of the guide rod 106 above the guide sleeve 107 in a sleeved manner, a swing handle 109 is disposed at a lower end of the guide rod 106, and a stop rod 200 is disposed at an edge of the side wall of the cooling tank 1. When the wax pattern is fixed, the transmission belt 4 is stopped in the running process, and after the plurality of fixed positions outside the transmission belt 4 are fixed, the transmission belt 4 is run. In the solution of the present invention, the transmission belt 7 is loosely wound around the first driving wheel 6 and the second driving wheel 8, that is, the transmission belt 7 cannot operate without external force, as shown in fig. 1, the swing handle 109 is kept under the stop lever 200, and the positioning wheel 11 can be limited to rotate by the clamping shaft 102, so that the position of the first rotating wheel 2 is fixed, the rotation of the transmission belt 4 is avoided, and the wax pattern fixing operation by the clamping mechanism 5 is facilitated. After the wax pattern above the conveyor belt 4 is fixed, the swing handle 109 is swung by a certain angle, the limit of the stop lever 200 to the swing handle 109 is released, the pushing frame 104 is lifted up through the rebound action of the first spring 108, the conveyor belt 7 is in an inverted V shape, the conveyor belt 7 is extruded through the pushing wheel 103 to play a tensioning role, and meanwhile, the protection rod 101 is lifted up under the pushing of the pushing frame 104, so that the limit of the clamping shaft 102 to the positioning wheel 11 is released, and the conveyor belt 4 is restarted. When it is necessary to stop the operation of the conveyor belt 4, the swing handle 109 is pressed down.

In this embodiment, the guard bar 101 has a first corner 1011 and a second corner 1012, the first corner 1011 being bent toward the inside of the belt 7, and the second corner 1012 being bent toward the outside of the belt 7; a second spring 201 is provided between two opposing first corner portions 1011, and a stopper shaft 202 is provided inside the first corner portions 1011. Through the first corner 1011 and the second corner 1012 on the protection rod 101, the protection effect on the driving belt 7 can be achieved, and the situation that the driving belt 7 is suddenly changed due to force when the driving belt 7 is continuously started and stopped, so that the driving belt 7 is outwards collapsed, and the equipment cannot work normally, and even the working personnel are accidentally injured is avoided.

In this embodiment, the first rotating wheel 2 and the second rotating wheel 3 are both sprockets, and sprocket tooth slots connected with the sprockets in a matching manner are provided at two side edges of the width direction of the transmission belt 4. The transmission belt 4 is prevented from slipping due to the large bearing weight, and the transmission efficiency is ensured.

In this embodiment, a limiting roller 203 is disposed inside the push wheel 103. For defining the distance of the pusher 104 from the outer wall of the cooling box 1.

firstly, the butterfly valve wax pattern is horizontally placed, the inner cavity of the valve body is sleeved on the periphery of the top sleeve 51, the valve rod of the butterfly valve wax pattern is clamped between the two supporting plates 55, the inner side of the valve rod of the butterfly valve wax pattern is abutted against the pressing rod 59, the pressing rod 59 moves inwards along the first strip-shaped hole 57 along with the continuous pushing of the wax pattern, meanwhile, the pressing rod 59 pulls the top plate 60 by using the flexible belt, the top plate 60 moves inwards along the second strip-shaped hole 58, and further, the top plate 60 moves inwards while facing the wax pattern until the top plate 60 is tightly pressed on the side part where the wax pattern valve body and the valve rod meet, then the conical plug 54 is rotationally pushed into the top sleeve 51, the top sleeve 51 expands outwards, and further, the top block 53 pushes against the inner cavity wall of the butterfly valve wax pattern, and therefore the position of the wax pattern is limited. In the process of clamping the valve rod of the wax-type butterfly valve between the two support plates 55, the valve rod is abutted against the pressure rod 59 and is attached to the outer side face of the pressure rod 59, in the process of continuously pushing the wax-type butterfly valve, the pressure rod 59 does not move relatively before the pressure rod 59, and further, the shape of the wax-type butterfly valve is not damaged by the pressure rod 59, meanwhile, the flexible belt connected through the pressure rod 59 pulls the top plate 60 to move inwards, and because the top plate 60 moves in the inclined hole, the top plate 60 is gradually pressed on the plane where the valve body is connected with the valve rod (the pressing is enough, the damage to the outer part of the wax-type is avoided), and the flange connected with the valve rod is abutted against the outer side face of the support plate 55;

step two, after the wax pattern above the conveyor belt 4 is fixed, the swing handle 109 is swung by a certain angle, the limit of the stop lever 200 to the swing handle 109 is released, the pushing frame 104 is lifted up through the rebound action of the first spring 108, the conveyor belt 7 is in an inverted V shape, the conveyor belt 7 is extruded through the pushing wheel 103 to play a tensioning role, and meanwhile, the protection rod 101 is lifted up under the pushing of the pushing frame 104, so that the limit of the clamping shaft 102 to the positioning wheel 11 is released, and the conveyor belt 4 is restarted. When it is necessary to stop the operation of the conveyor belt 4, the swing handle 109 is pressed down.

The invention has the beneficial effects that:

the cooling chamber of the cooling tank 1 is filled with a cooling liquid, and the wax pattern is cooled by the cooling liquid. At present, the conventional wax pattern cooling method simply puts the wax pattern in cooling liquid for treatment, the cooling efficiency is lower, and the wax pattern is deformed due to the physical phenomenon of thermal expansion and cold contraction in the cooling process. Particularly, the problem that the flange of the valve rod hole and the inner cavity of the valve body of the large-specification butterfly valve body are easy to deform in the cooling process is solved. In the invention, the butterfly valve wax pattern is horizontally placed, the inner cavity of the valve body is sleeved on the periphery of the top sleeve 51, the valve rod is clamped between the two supporting plates 55, the inner side of the valve rod of the butterfly valve wax pattern is abutted against the pressure rod 59, the pressure rod 59 moves inwards along the first strip-shaped hole 57 along with the continuous pushing of the wax pattern, meanwhile, the pressure rod 59 pulls the top plate 60 by using the flexible belt, the top plate 60 moves inwards along the second strip-shaped hole 58, and further, the top plate 60 moves inwards while facing the wax pattern until the top plate 60 is tightly pressed on the side part where the wax pattern valve body and the valve rod are connected, then the conical plug 54 is rotationally pushed into the top sleeve 51 to expand the top sleeve 51 outwards, and further, the top block 53 is abutted against the inner cavity wall of the wax pattern of the butterfly valve, so that the positions of the wax pattern are limited, and deformation of the valve rod and the inner cavity of the wax pattern butterfly valve can be effectively avoided in the process of putting the wax pattern into cooling liquid for cooling treatment. In addition, the wax pattern is driven by the conveying belt 4 to be dynamically cooled in the cooling box 1, namely, the wax pattern can move up and down and turn over in the cooling process, and certain friction is generated between the outside of the wax pattern and the cooling liquid, so that the heat exchange is facilitated, and the wax pattern is further promoted to be rapidly cooled.

Because of the low hardness of wax, deformation is easily generated when the wax is excessively pressed and rubbed from the outside. In the scheme of the invention, in the process of clamping the valve rod of the wax-type butterfly valve between the two support plates 55, the valve rod is abutted against the compression rod 59 and is attached to the outer side surface of the compression rod 59, in the process of continuously pushing the wax-type butterfly valve, the compression rod 59 does not cause damage to the appearance of the wax-type butterfly valve before the compression rod 59, meanwhile, the flexible belt connected through the compression rod 59 pulls the top plate 60 to move inwards, and the top plate 60 gradually presses on the plane where the valve body and the valve rod are connected (pressing can be performed without damaging the outside of the wax-type butterfly valve excessively), and the flange connected with the valve rod is abutted against the outer side surface of the support plate 55, so that the valve rod is braced tightly, and the valve rod and the flange are prevented from deforming due to cold shrinkage in the cooling process. The fixing and mounting of the wax pattern are rapid and convenient, and the outside of the wax pattern is not damaged.

When the wax pattern is fixed, the transmission belt 4 is stopped in the running process, and after the plurality of fixed positions outside the transmission belt 4 are fixed, the transmission belt 4 is run. In the solution of the present invention, the transmission belt 7 is loosely wound around the first driving wheel 6 and the second driving wheel 8, that is, the transmission belt 7 cannot operate without external force, as shown in fig. 1, the swing handle 109 is kept under the stop lever 200, and the positioning wheel 11 can be limited to rotate by the clamping shaft 102, so that the position of the first rotating wheel 2 is fixed, the rotation of the transmission belt 4 is avoided, and the wax pattern fixing operation by the clamping mechanism 5 is facilitated. After the wax pattern above the conveyor belt 4 is fixed, the swing handle 109 is swung by a certain angle, the limit of the stop lever 200 to the swing handle 109 is released, the pushing frame 104 is lifted up through the rebound action of the first spring 108, the conveyor belt 7 is in an inverted V shape, the conveyor belt 7 is extruded through the pushing wheel 103 to play a tensioning role, and meanwhile, the protection rod 101 is lifted up under the pushing of the pushing frame 104, so that the limit of the clamping shaft 102 to the positioning wheel 11 is released, and the conveyor belt 4 is restarted. When it is necessary to stop the operation of the conveyor belt 4, the swing handle 109 is pressed down.

Through the first corner 1011 and the second corner 1012 on the protection rod 101, the protection effect on the driving belt 7 can be achieved, and the situation that the driving belt 7 is suddenly changed due to force when the driving belt 7 is continuously started and stopped, so that the driving belt 7 is outwards collapsed, and the equipment cannot work normally, and even the working personnel are accidentally injured is avoided.

Working principle:

The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a smart butterfly valve body anti-deformation controlling means that casts, including cooling tank (1), its characterized in that, cooling tank (1) is inside to be seted up the cooling chamber, this cooling chamber upper end is opened, and be equipped with first rotor (2) in cooling chamber upper end opening part, be equipped with second rotor (3) in cooling chamber bottom, be equipped with conveyer belt (4) around through first rotor (2) and second rotor (3) periphery, this conveyer belt (4) outside is equipped with a plurality of fixture (5), the outer end of this first rotor (2) middle part pivot is equipped with first drive wheel (6), this first drive wheel (6) are connected on second drive wheel (8) through conveyer belt (7), this second drive wheel (8) are connected at driving motor (9), this driving motor (9) are installed on cooling tank (1) lateral wall; the outside of the driving belt (7) is provided with a protection component (10), the upper end of the protection component (10) is provided with a positioning wheel (11), and the positioning wheel (11) is arranged at the outer end of the first driving wheel (6).

2. The fine casting butterfly valve body deformation prevention control device according to claim 1, wherein: the clamping mechanism (5) comprises a top sleeve (51) arranged on the outer side wall of the transmission belt (4), a plurality of strip-shaped grooves (52) are uniformly distributed on the side wall of the top sleeve (51), a top block (53) is arranged on the outer side wall of the top sleeve (51) in a surrounding mode, and a conical plug (54) is arranged in the middle of the top sleeve (51); the utility model discloses a flexible belt structure, including top cover (51) and roof, support board (55) that top cover (51) one side was equipped with two upper and lower arrangements, guide slot (56) have been seted up towards one side of top cover (51) in the middle part of this support board (55), first bar hole (57) with support board (55) length direction parallel arrangement have been seted up on this guide slot (56) inside wall, second bar hole (58) with support board (55) length direction slope setting have been seted up on this guide slot (56) lateral wall, be equipped with depression bar (59) between two support boards (55), and both ends alternate about depression bar (59) in first bar hole (57), the second bar hole (58) internal sliding is equipped with roof (60), and connect through the flexible belt between depression bar (59) and roof (60).

3. The fine casting butterfly valve body deformation prevention control device according to claim 2, wherein: the protection assembly (10) comprises a protection rod (101), a clamping shaft (102) is arranged on the upper end face of the protection rod (101) towards a positioning wheel (11), the clamping shaft (102) is matched with a clamping groove around the periphery of the positioning wheel (11), the lower end of the protection rod (101) is rotationally connected with a push wheel (103), one end of a middle rotating shaft of the push wheel (103) is provided with a push frame (104), the middle of the push frame (104) is slidably provided with a limiting rod (105), the lower end of the push frame (104) is vertically provided with a guide rod (106), the guide rod (106) is arranged in a guide sleeve (107) in a penetrating mode, the guide sleeve (107) is arranged on the side wall of the cooling box (1), a first spring (108) is arranged on the periphery of the guide rod (106) above the guide sleeve (107), the lower end of the guide rod (106) is provided with a swing handle (109), and the side wall edge of the cooling box (1) is provided with a baffle rod (200).

4. A precision casting butterfly valve body deformation prevention control device as claimed in claim 3, wherein: the guard bar (101) has a first corner (1011) and a second corner (1012), the first corner (1011) being bent toward the inside of the belt (7), the second corner (1012) being bent toward the outside of the belt (7); a second spring (201) is provided between two first corner sections (1011) which are arranged opposite to each other, and a stopper shaft (202) is provided inside the first corner sections (1011).

5. The fine casting butterfly valve body deformation prevention control device according to claim 1, wherein: the first rotating wheel (2) and the second rotating wheel (3) are respectively provided with a chain wheel, and chain wheel tooth grooves which are matched and connected with the chain wheels are formed in the edges of the two sides of the width direction of the transmission belt (4).

6. A precision casting butterfly valve body deformation prevention control device as claimed in claim 3, wherein: and a limiting roller (203) is arranged on the inner side of the push wheel (103).

7. A control method of the fine casting butterfly valve body deformation prevention control device according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:

firstly, a butterfly valve wax pattern is horizontally placed, an inner cavity of a valve body of the butterfly valve wax pattern is sleeved on the periphery of a top sleeve (51), a valve rod of the butterfly valve wax pattern is clamped between two supporting plates (55), the inner side of the valve rod of the butterfly valve wax pattern is abutted against a pressing rod (59), the pressing rod (59) moves inwards along a first strip-shaped hole (57) along with continuous pushing of the wax pattern, meanwhile, the pressing rod (59) pulls a top plate (60) through a flexible belt, the top plate (60) moves inwards along a second strip-shaped hole (58), and the second strip-shaped hole (58) is obliquely arranged, so that the top plate (60) moves towards the wax pattern while moving inwards until the top plate (60) is pressed on the side part where the wax pattern valve body and the valve rod meet, then the tapered plug (54) is rotationally pushed into the top sleeve (51), the top sleeve (51) is outwards expanded, and then the top block (53) is pushed against the inner cavity wall of the butterfly valve pattern, and therefore the position of the wax pattern is limited. In the process of clamping the valve rod of the wax-type butterfly valve between the two support plates (55), the valve rod is propped against the compression rod (59) and is attached to the outer side surface of the compression rod (59), in the process of continuously pushing the wax-type butterfly valve, the compression rod (59) does not move relatively before the compression rod (59), the appearance of the wax-type butterfly valve is not damaged, meanwhile, the flexible belt connected through the compression rod (59) pulls the top plate (60) to move inwards, and because the top plate (60) moves in the inclined hole, the top plate (60) is gradually pressed on the plane where the valve body is connected with the valve rod, and the flange connected with the valve rod is propped against the outer side surface of the support plate (55);

step two, after the wax pattern above the transmission belt (4) is fixed, the swing handle (109) swings by a certain angle, the limit of the stop lever (200) to the swing handle (109) is released, the pushing frame (104) is lifted up through the rebound action of the first spring (108), the transmission belt (7) is in an inverted V shape, the transmission belt (7) is extruded through the pushing wheel (103) to play a tensioning role, and meanwhile, the protection rod (101) is lifted up under the pushing of the pushing frame (104), so that the limit of the clamping shaft (102) to the positioning wheel (11) is released, and the transmission belt (4) is restarted. When the conveyor belt (4) is required to stop running, the swing handle (109) is pressed down.