CN116197379A - Sand mould forming die for inner cavity sand core of butterfly valve body - Google Patents

Abstract

The invention discloses a sand mould forming mould for a sand core in an inner cavity of a butterfly valve body, which relates to the technical field of forming moulds and comprises a lower mould mechanism, wherein an upper driving mechanism and a lower driving mechanism are fixedly arranged between the outer surface walls of the lower mould mechanism. According to the invention, after the heat conducting plate and the sealing plate are clamped with each other, a finished cooling groove channel can be formed after the first cooling groove and the second cooling groove, under the action of the control valve, the connecting pipe and the cooling groove channel can be communicated, so that dry ice is conveyed into the channel, the heat at the top of the heat conducting plate can be effectively transferred downwards, after the dry ice is contacted with the heat, the heat can be effectively adsorbed in the vaporization process, and then generated gas can be discharged from the output pipe, and the cooling treatment of castings can be accelerated in the cooling mode, so that the cooling time is effectively shortened, and the sound field efficiency is improved.

Description

A sand mold forming mold for a sand core in the inner cavity of a butterfly valve

technical field

The invention relates to the technical field of forming molds, in particular to a sand mold forming mold for a sand core in the inner cavity of a butterfly valve.

Background technique

Butterfly valve, also known as flap valve, is a regulating valve with simple structure, which can be used for switching control of low-pressure pipeline medium. A kind of valve, the valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment.

Sand casting is a widely used form of casting. As the name suggests, sand is used to make molds. Sand mold casting needs to put the finished part model or wooden model (pattern) in the sand, then fill the sand around the pattern, and take out the pattern after opening the box to form the mold.

In the prior art, for example, the Chinese patent application is: a kind of coated sand forming mold in CN 113134571 A, including a shell assembly, a temperature adjustment assembly, and a material injection assembly, wherein the shell assembly includes an upper mold and a lower mold, and the upper mold The interior of the mold and the lower mold includes a molding cavity; the temperature regulating component is placed inside the shell component, including a temperature regulating plate located at the end of the forming cavity and a temperature regulating channel placed inside the shell component and the temperature regulating plate. The temperature is regulated between the temperature plate and the inside of the shell assembly; the injection assembly is communicated with the shell assembly through the collecting valve, and the runoff pipes connected to each collecting valve. The coated sand forming mold provided by the invention can balance the surface temperature of the casting during the casting process through the temperature adjustment component, and accelerate the cooling of the mold after the casting is completed, thereby reducing the processing and casting time and saving costs. Various modifiers need to be injected during processing. Since the time for adding modifiers is different, there is an injection unit, which can add modifiers within a preset time to improve production efficiency.

Although the above-mentioned equipment can reduce processing and casting time, save costs, and can add modifiers within the preset time to improve production efficiency, when introducing high-temperature liquid into the interior of the sand mold, the coated sand mold is generally left to stand , allowing it to cool naturally, which will lead to a long cooling time, and the coated sand mold after pouring is also left to cool, which will make the cooling time of the casting long, which will affect the production efficiency.

Contents of the invention

The purpose of the present invention is to provide a sand mold for forming a sand core in the inner cavity of a butterfly valve to solve the above-mentioned background technology. It is proposed that after the raw material injection molding of the equipment is completed, the internal castings are likely to be naturally statically cooled, and the cooling time is likely to be too long. Long, the problem that affects production efficiency.

In order to achieve the above object, the present invention provides the following technical solutions: a sand mold forming mold for a sand core in the inner cavity of a butterfly valve, including a lower mold mechanism, and an upper and lower drive mechanism is fixedly installed between the outer and outer walls of the lower mold mechanism. Two left and right driving mechanisms are fixedly installed on the outer wall of the lower mold mechanism, and a cooling mechanism is fixedly installed on one side of the outer wall of the lower mold mechanism;

The cooling mechanism includes two installation racks, a dry refrigerator is fixedly installed between the tops of the two installation racks, and the top of the dry refrigerator is fixedly connected with an injection pipe, and the inner and outer walls of the injection pipe are movable A sealing plug is inserted, a control valve is fixedly communicated with the bottom of the dry refrigerator, and a connecting pipe is fixedly communicated with an output end of the control valve.

Preferably, the lower mold mechanism includes two support frames, two support columns are fixedly inserted at the bottom of the two support frames, and a sealing plate is fixedly installed on the top of the two support frames, and the sealing plate A first cooling groove is opened at the bottom of the inner wall of the plate, and a connecting port is opened on one side of the outer wall of the sealing plate, the output end of the connecting port is fixedly connected with an output pipe, and the output end of the output pipe is fixedly connected with a dust cover .

Preferably, a temperature-conducting plate is movably embedded between the inner and outer walls of the sealing plate, a second cooling groove is provided at the bottom of the temperature-conducting plate, and two connecting blocks are fixedly installed on the outer wall of the temperature-conducting plate , One side of the outer wall of the two connecting blocks is provided with embedding grooves.

Preferably, one side of the outer wall of the two connecting blocks is provided with a first sliding groove, and the inner surface walls of the two first sliding grooves are all slidably embedded with a first sliding bar, and the two first sliding grooves A lower mold is fixedly installed between the outer walls of the bars.

Preferably, one side of the outer wall of the lower mold is provided with two fixing grooves, the inner surface walls of the two fixing grooves are movably embedded with fixing blocks, and the outer walls of the two fixing blocks are fixedly installed on one side. There are side plates, and two second sliding bars are fixedly installed on the outer wall of the side plates.

Preferably, the up and down driving mechanism includes four sliding seats, and the insides of the four sliding seats are all provided with moving grooves, and the insides of the four moving grooves are all slidably embedded with a first linkage plate, and the four sliding seats Electric telescopic rods are fixedly installed inside the sliding seats, and the output ends of the four electric telescopic rods are all fixedly connected to the bottom of the first linkage plate.

Preferably, an upper mold is fixedly installed between the outer walls of the four first linkage plates, an injection block is fixedly installed on the bottom of the upper mold, and two embedded blocks are fixedly installed on the outer wall of the upper mold.

Preferably, the left and right driving mechanisms include two U-shaped frames, and a set of second sliding grooves are provided on the tops of the two U-shaped frames, and the inner surfaces of the two sets of the second sliding grooves are slidingly embedded. There are sliders.

Preferably, a second linkage plate is fixedly installed between the outer walls of the two sets of sliders, and a cylinder is fixedly inserted on one side of the outer walls of the two second linkage plates.

Preferably, one side of the outer wall of the two connecting blocks is fixedly connected to one side of the outer wall of the two sets of sliding seats, the outer wall of the sealing plate is fixedly connected to the outer wall side of the two U-shaped frames, and the mounting frame One side of the outer wall of the sealing plate is fixedly connected to one side of the outer wall of the sealing plate, and the outer walls of the two embedded blocks are movably inserted in the inside of the embedded groove, and the output end of the connecting pipe is connected to the first cooling groove and the second cooling groove. The input ends of the cooling grooves communicate with each other, and the outer wall of the injection block is movably inserted in the lower mold and the side plate.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, under the action of the lower mold mechanism and the cooling mechanism, firstly, after the temperature guide plate and the sealing plate are engaged with each other, a complete cooling groove channel can be formed after the first cooling groove and the second cooling groove, and the control valve Under the action of the connecting pipe and the channel of the cooling tank, the connection between the connecting pipe and the channel of the cooling tank can be realized, so that the dry ice can be transported to the inside of the channel, and the heat conduction plate can effectively transfer the heat at the top downward. When the dry ice comes into contact with this heat , can be instantly vaporized, and the heat can be effectively adsorbed during this vaporization process, and the gas generated subsequently can be discharged from the output pipe, and through this cooling method, the cooling process of the casting can be accelerated, thus effectively The cooling time is shortened, which in turn improves the efficiency of the sound field.

In the present invention, under the action of the lower mold mechanism and the left and right driving mechanisms, firstly, the two cylinders can respectively drive the lower mold and the side plates to move in opposite directions, so that the two can be separated, and the separation between the molded modules and the fixed mold can be achieved. The molding surface is simple to facilitate demoulding, and the cylinder can effectively remove the forming mold from the inside of the overall device, thereby facilitating the removal of the product.

In the present invention, under the action of the lower mold mechanism and the upper and lower driving mechanism, firstly, the equipment can be driven to perform self-adjustment processing through the action of the equipment itself, and the integrated production of injection molding, cooling, demoulding, and integration can effectively reduce labor costs. The process of operation not only saves costs, but also greatly improves the efficiency of product production.

Description of drawings

Fig. 1 is the front view structure stereogram in the sand mold molding die of a kind of butterfly valve inner cavity sand core of the present invention;

Fig. 2 is the perspective view of the bottom view structure in the sand mold molding die of a butterfly valve inner cavity sand core of the present invention;

Fig. 3 is a split view of the lower mold mechanism in the sand mold forming mold of the inner cavity sand core of a butterfly valve valve of the present invention;

Fig. 4 is a split view of the upper and lower drive mechanisms in the sand mold forming mold of the inner cavity sand core of a butterfly valve valve of the present invention;

Fig. 5 is an exploded view of the left and right driving mechanisms in the sand mold forming mold of the inner cavity sand core of a butterfly valve according to the present invention;

Fig. 6 is an exploded view of the cooling mechanism in the sand mold forming mold of the inner cavity sand core of a butterfly valve according to the present invention;

Fig. 7 is a bottom perspective view of the structure of the heat conducting plate in the sand mold forming mold for the inner cavity sand core of a butterfly valve according to the present invention.

Among the figure: 1, lower mold mechanism; 101, support frame; 102, support column; 103, sealing plate; 104, first cooling tank; 105, connection port; 106, output pipe; 107, dust cover; 108, guide Warming plate; 109, second cooling groove; 110, connecting block; 111, embedding groove; 112, first sliding groove; 113, first sliding bar; 114, lower mold; 115, fixing groove; 116, fixing block; 117, side panel; 118, second slide bar;

2. Up and down driving mechanism; 201, sliding seat; 202, moving slot; 203, first linkage plate; 204, electric telescopic rod; 205, upper mold; 206, injection block; 207, embedded block;

3. Left and right driving mechanism; 301, U-shaped frame; 302, second slide groove; 303, slider; 304, second linkage plate; 305, cylinder;

4. Cooling mechanism; 401. Mounting frame; 402. Dry refrigerator; 403. Injection tube; 404. Sealing plug; 405. Control valve; 406. Connecting tube.

Implementation

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described implementation regulations are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example

Referring to Fig. 1-Fig. 7: a sand mold forming mold for sand cores in the inner cavity of butterfly valves, including a lower mold mechanism 1, an upper and lower driving mechanism 2 is fixedly installed between the outer and outer walls of the lower mold mechanism 1, and the lower mold mechanism 1 Two left and right driving mechanisms 3 are fixedly installed on the outer wall of the lower mold mechanism 1, and a cooling mechanism 4 is fixedly installed on one side of the outer wall of the lower mold mechanism 1;

The cooling mechanism 4 includes two installation frames 401, a dry refrigerator 402 is fixedly installed between the tops of the two installation frames 401, and the top of the dry refrigerator 402 is fixedly connected with an injection molding tube 403, and the inner and outer walls of the injection molding tube 403 are movably inserted. A sealing plug 404 is provided, a control valve 405 is fixedly connected to the bottom of the dry refrigerator 402, and a connecting pipe 406 is fixedly connected to the output end of the control valve 405;

Firstly, under the action of the control valve 405, the communication process between the connecting pipe 406 and the dry refrigerator 402 can be realized, and under the action of this communication, the dry ice inside the dry refrigerator 402 can be effectively transported to the first cooling tank 104 and the inner surface wall of the second cooling tank 109, and the dry ice raw material can be added to the inside of the dry refrigerator 402 through the injection tube 403, and the sealing plug 404 and the injection tube 403 can be effectively embedded and engaged to keep the injection tube 403 sealed state.

Example

As shown in Figures 1-3, the lower mold mechanism 1 includes two support frames 101, the bottom of the two support frames 101 are fixedly inserted with two support columns 102, and the tops of the two support frames 101 are fixedly installed with a seal plate 103, the bottom of the inner wall of the sealing plate 103 is provided with a first cooling tank 104, one side of the outer wall of the sealing plate 103 is provided with a connection port 105, the output end of the connection port 105 is fixedly connected with an output pipe 106, and the output end of the output pipe 106 is fixed Connected with a dust cover 107, a temperature conducting plate 108 is movably embedded between the inner and outer walls of the sealing plate 103, and the bottom of the temperature conducting plate 108 is provided with a second cooling groove 109, and the outer wall of the temperature conducting plate 108 is fixedly installed with two One connecting block 110, one side of the outer wall of the two connecting blocks 110 is provided with an embedding groove 111, one side of the outer wall of the two connecting blocks 110 is provided with a first sliding groove 112, and the inner surfaces of the two first sliding grooves 112 The walls are slidably embedded with first slide bars 113, and a lower mold 114 is fixedly installed between the outer walls of the two first slide bars 113. Two fixing grooves 115 are provided on one side of the outer wall of the lower mold 114, and the two fixing grooves The inner surface walls of 115 are movably embedded with fixed blocks 116, and a side plate 117 is fixedly installed between one side of the outer walls of the two fixed blocks 116, and two second sliding bars 118 are fixedly installed on the outer walls of the side plates 117;

In use, when the device is in the molding process, the heat generated can be effectively conducted through the bottom of the heat conduction plate 108, and this heat enters between the first cooling groove 104 and the second cooling groove 109, dry ice and After the two phases are in contact, the heat is effectively absorbed by the volatilization of the dry ice, so as to realize its cooling and cooling treatment, and the generated mist will pass through the output end of the output pipe 106, and the dust cover 107 can be connected with the output pipe 106. The connection can effectively isolate the external dust from the outside, avoiding the problem of entering the interior of the equipment and causing blockage of the internal passage.

Example

According to Fig. 2-Fig. 7, the upper and lower driving mechanism 2 includes four sliding seats 201, and the insides of the four sliding seats 201 are all provided with moving grooves 202, and the insides of the four moving grooves 202 are all slidably embedded with the first linkage Plate 203, the inside of four sliding seats 201 are fixedly equipped with electric telescopic rods 204, and the output ends of the four electric telescopic rods 204 are fixedly connected with the bottom of the first linkage plate 203, the appearance of the four first linkage plates 203 An upper mold 205 is fixedly installed between the walls, an injection block 206 is fixedly installed on the bottom of the upper mold 205, two embedded blocks 207 are fixedly installed on the outer wall of the upper mold 205, and the left and right driving mechanisms 3 include two U-shaped frames 301 , the tops of the two U-shaped frames 301 are provided with a set of second slide grooves 302, the inner surface walls of the two sets of second slide grooves 302 are slidingly embedded with sliders 303, and the outer walls of the two sets of sliders 303 are both The second linkage plate 304 is fixedly installed, and the outer wall sides of the two second linkage plates 304 are fixedly inserted with the cylinder 305, and the outer wall sides of the two connecting blocks 110 are fixedly connected with the outer wall sides of the two sets of sliding seats 201 , the outer wall of the sealing plate 103 is fixedly connected to one side of the outer wall of the two U-shaped frames 301, one side of the outer wall of the mounting frame 401 is fixedly connected to the outer wall of the sealing plate 103, and the outer walls of the two embedded blocks 207 are all movable Inserted inside the embedding groove 111, the output end of the connecting pipe 406 communicates with the input end between the first cooling groove 104 and the second cooling groove 109, and the outer wall of the injection molding block 206 is movably inserted between the lower mold 114 and the second cooling groove 109. the interior of the side panel 117;

First, under the action of the two cylinders 305, the lower mold 114 and the side plate 117 can be respectively driven to move in opposite directions. In the process of merging with each other, a completed notch can be formed in it to become an injection molding groove. After merging, the two A fixed block 116 can be movably embedded in the inside of the fixed groove 115, and can realize the connection process between the side plate 117 and the lower mold 114, thereby maintaining the stable state of the connection.

The use method and working principle of this device: at the beginning of the operation of the equipment, firstly, the four cylinders 305 can drive the four first linkage plates 203 and the upper mold 205 between each other to move downward through their own stretchability, so as to keep the injection molding The block 206 and the bottom are embedded and engaged with each other, and then the raw material is injected into the cavity through the external injection molding equipment. After the raw material injection molding is completed, a high temperature will be generated, and under the transfer of the heat conducting plate 108, this heat can be dissipated Effectively transfer to the bottom, and the heat can effectively stay between the inner surface wall of the first cooling tank 104 and the second cooling tank 109, the dry ice can be poured into the inside of the dry refrigerator 402 through the injection molding tube 403 for storage, and the pouring is completed Afterwards, the sealing plug 404 is movably inserted inside the injection molding tube 403, which can keep the sealing line of the injection molding tube 403 and effectively prevent dust from entering the inside of the dry refrigerator 402, and then the control valve 405 is opened to realize the connection between the tube 406 and the dry refrigerator. 402, and then the dry ice is transported through it, so as to enter between the inner surface walls of the first cooling tank 104 and the second cooling tank 109, and after contacting with this heat, it volatilizes and absorbs heat, thereby continuously maintaining the equipment Cooling treatment, and the mist generated in the dust process can be discharged through the output pipe 106 on the other side, and the function of the dust cover 107 is to realize the communication with the output pipe 106, which can effectively isolate the external dust from the outside and avoid Entering the inside of the equipment will cause blockage of the internal passage. After the injection molded product is cooled, under the action of the two cylinders 305, the lower mold 114 and the side plate 117 can be driven to move in opposite directions to realize the separation between the two. , keeping the product placed inside the lower mold 114, and then the cylinder 305 drives the lower mold 114 to move outward, so that the lower mold 114 and the internal product are removed from the inside of the overall equipment, so that the staff can take out the cooled product outside processing, and after the lower mold 114 and the side plate 117 are combined, the two fixing blocks 116 can be movably embedded in the inside of the fixing groove 115, and the connection process between the side plate 117 and the lower mold 114 can be realized, thereby maintaining this connection In a stable state, the equipment integrates injection molding, cooling, demoulding, and integrated production, which can effectively reduce the manual operation process, not only save costs, but also greatly improve the efficiency of product production.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (10)

1. A sand mould forming die of butterfly valve body inner chamber psammitolite, its characterized in that: the device comprises a lower die mechanism (1), wherein an upper driving mechanism and a lower driving mechanism (2) are fixedly arranged between the outer surface walls of the lower die mechanism (1), two left driving mechanisms and two right driving mechanisms (3) are fixedly arranged on the outer surface walls of the lower die mechanism (1), and a cooling mechanism (4) is fixedly arranged on one side of the outer wall of the lower die mechanism (1);

the cooling mechanism (4) comprises two mounting frames (401), a dry refrigerator (402) is fixedly mounted between the tops of the mounting frames (401), an injection molding pipe (403) is fixedly communicated with the tops of the dry ice boxes (402), a sealing plug (404) is movably inserted between inner surface walls of the injection molding pipe (403), a control valve (405) is fixedly communicated with the bottoms of the dry ice boxes (402), and a connecting pipe (406) is fixedly communicated with the output end of the control valve (405).

2. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 1, wherein: lower mould mechanism (1) is including two support frames (101), two the bottom of support frame (101) is all fixed to be inserted two support columns (102), two the top fixed mounting of support frame (101) has closing plate (103), first cooling tank (104) have been seted up to the inner wall bottom of closing plate (103), connector (105) have been seted up on outer wall one side of closing plate (103), the output fixed intercommunication of connector (105) has output tube (106), the output fixed intercommunication of output tube (106) has dust cover (107).

3. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 2, wherein: the heat conduction plate (108) is movably embedded between the inner surface walls of the sealing plates (103), a second cooling groove (109) is formed in the bottom of the heat conduction plate (108), two connecting blocks (110) are fixedly arranged on the outer surface walls of the heat conduction plate (108), and embedded grooves (111) are formed in one sides of the outer walls of the two connecting blocks (110).

4. A sand mould forming die for a butterfly valve body inner cavity sand core according to claim 3, characterized in that: the outer wall sides of the two connecting blocks (110) are provided with first sliding grooves (112), the inner surface walls of the two first sliding grooves (112) are respectively embedded with a first sliding strip (113) in a sliding mode, and a lower die (114) is fixedly arranged between the outer surface walls of the two first sliding strips (113).

5. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 4, wherein: two fixed slots (115) are formed in one side of the outer wall of the lower die (114), fixed blocks (116) are movably embedded in the inner surface walls of the two fixed slots (115), a side plate (117) is fixedly arranged between one side of the outer wall of each fixed block (116), and two second sliding strips (118) are fixedly arranged on the outer surface walls of the side plates (117).

6. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 5, wherein: the upper driving mechanism (2) comprises four sliding seats (201), the interior of each sliding seat (201) is provided with a moving groove (202), the interior of each moving groove (202) is provided with a first linkage plate (203) in a sliding embedded mode, the interior of each sliding seat (201) is provided with an electric telescopic rod (204) in a fixed mode, and the output ends of the four electric telescopic rods (204) are fixedly connected with the bottom of each first linkage plate (203).

7. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 6, wherein: an upper die (205) is fixedly arranged between the outer surface walls of the four first linkage plates (203), an injection molding block (206) is fixedly arranged at the bottom of the upper die (205), and two embedded blocks (207) are fixedly arranged on the outer surface walls of the upper die (205).

8. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 7, wherein: the left-right driving mechanism (3) comprises two U-shaped frames (301), a group of second sliding grooves (302) are formed in the tops of the two U-shaped frames (301), and sliding blocks (303) are embedded in the inner surface walls of the two groups of second sliding grooves (302) in a sliding mode.

9. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 8, wherein: a second linkage plate (304) is fixedly arranged between the outer surface walls of the two groups of sliding blocks (303), and an air cylinder (305) is fixedly inserted at one side of the outer wall of each second linkage plate (304).

10. The sand mold forming mold for the inner cavity sand core of the valve body of the butterfly valve according to claim 9, wherein: the two outer wall sides of connecting block (110) are fixedly connected with outer wall sides of two groups of sliding seats (201), the outer surface wall of sealing plate (103) is fixedly connected with outer wall sides of two U-shaped frames (301), outer wall sides of mounting frame (401) are fixedly connected with outer wall sides of sealing plate (103), the outer surface wall of embedded block (207) is movably inserted into embedded groove (111), the output end of connecting pipe (406) is communicated with the input ends of first cooling groove (104) and second cooling groove (109) and the outer surface wall of injection molding block (206) is movably inserted into the lower die (114) and side plate (117).

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