阅读说明：本技术 一种硅溶胶模壳干燥系统 (Silica sol mould shell drying system ) 是由 魏建涛 魏波涛 于 2021-10-08 设计创作，主要内容包括：一种涉及熔模铸造技术领域的硅溶胶模壳干燥系统,包含由支撑架和传送链构成用于传送蜡模的循环传送链装置,以及用于风干蜡模外包裹的硅溶胶模壳的风干箱,还包含挂接机构和沾浆池；所述循环传送链装置传送链的链身通过铰链组件均布间隔铰接有多个用于挂接蜡模的挂接机构,且铰链组件的铰接轴与循环传送链装置的传送链长度方向轴线对应平行；所述挂接机构包含能够对应插接而组成一个整体的插接组件Ⅰ和插接组件Ⅱ,插接组件Ⅰ包含一端与铰链组件对应铰接的插接管；本发明结构简单,生产效率高,能够实现在蜡模外表自动上硅溶胶涂料以及在硅溶胶涂层自动覆盖石英砂的操作,有效降低了操作人员的劳动强度。(A silica sol mould shell drying system relates to the technical field of investment casting, and comprises a circulating conveying chain device which is composed of a supporting frame and a conveying chain and used for conveying a wax mould, an air drying box for air-drying the silica sol mould shell wrapped outside the wax mould, a hanging mechanism and a slurry dipping pool; a plurality of hanging mechanisms for hanging wax molds are uniformly and alternately hinged to a chain body of the conveying chain of the circulating conveying chain device through hinge components, and hinge shafts of the hinge components are correspondingly parallel to the length direction axis of the conveying chain of the circulating conveying chain device; the hanging mechanism comprises a plug-in component I and a plug-in component II which can be correspondingly plugged to form a whole, wherein the plug-in component I comprises a plug-in pipe with one end correspondingly hinged with the hinge component; the automatic coating device has the advantages of simple structure and high production efficiency, can realize the operation of automatically coating the silica sol coating on the outer surface of the wax mould and automatically covering the silica sol coating with quartz sand, and effectively reduces the labor intensity of operators.)

1. The utility model provides a silica sol mould shell drying system, contains by support frame and conveying chain constitution be used for conveying circulation conveying chain device (1) of wax matrix (2) to and be used for air-drying the air-dry case (6) of the silica sol mould shell of outer parcel of wax matrix (2), characterized by: also comprises a hanging mechanism (3) and a slurry tank (4); the chain body of the conveying chain of the circulating conveying chain device (1) is uniformly hinged with a plurality of hanging mechanisms (3) for hanging the wax molds (2) at intervals through hinge components (7), and hinged shafts of the hinge components (7) are correspondingly parallel to the length direction axis of the conveying chain of the circulating conveying chain device (1);

the hanging mechanism (3) comprises a plug-in component I and a plug-in component II which can be correspondingly plugged to form a whole, the plug-in component I comprises a plug-in pipe (3-1) with one end correspondingly hinged to the hinge component (7), the other end of the plug-in pipe (3-1) is provided with a plurality of openings at intervals around the axis of the plug-in pipe (3-1) near the end part, the openings are internally and slidably connected with sliding blocks (3-2), a mandrel (3-3) is movably plugged at one end of the plug-in pipe (3-1) corresponding to the sliding blocks (3-2), the position of the mandrel (3-3) corresponding to the sliding blocks (3-2) is a conical structure capable of pushing the sliding blocks (3-2) out of the openings of the plug-in pipe (3-1), and the small head end of the conical structure faces the hinge component (7);

one end of the sliding block (3-2) corresponding to the core shaft (3-3) is an inclined plane correspondingly matched with the conical structure of the core shaft (3-3), the other end of the sliding block (3-2) is provided with a groove, and a ring-shaped tension spring (3-4) for preventing the sliding block (3-2) from separating from the opening of the insertion pipe (3-1) is sleeved at the position of the insertion pipe (3-1) corresponding to the groove of the sliding block (3-2); a plug (3-5) is installed at one end of the insertion pipe (3-1) departing from the hinge assembly (7), and a spring (3-6) used for pushing the mandrel (3-3) is arranged between the corresponding mandrel (3-3) and the plug (3-5) in the insertion pipe (3-1); a movable sleeve (3-7) is movably sleeved at one end of the insertion pipe (3-1) corresponding to the mandrel (3-3) and deviating from the plug (3-5), a pin (3-8) penetrating through the insertion pipe (3-1) and correspondingly and fixedly connected with the mandrel (3-3) is arranged in the movable sleeve (3-7), and a strip-shaped groove (3-9) capable of enabling the movable sleeve (3-7) to drive the pin (3-8) to move along the axis of the insertion pipe (3-1) is arranged at the position of the insertion pipe (3-1) corresponding to the pin (3-8);

the plug-in component II comprises a butt-joint rod (3-10), one end of the butt-joint rod (3-10) is provided with a blind hole which can be correspondingly and movably plugged with one end of the plug-in pipe (3-1) deviating from the hinge component (7), and an annular groove (3-11) which can be correspondingly clamped with the sliding block (3-2) is arranged in the open end of the blind hole; the other end of the butt joint rod (3-10) is coaxially and rotatably connected with a mold handle (3-12) used for connecting the wax mold (2);

a slurry dipping pool (4) containing silica sol coating, a sand box (8) containing quartz sand and an air drying box (6) are sequentially arranged below the circulating conveying chain device (1) along the conveying direction of the circulating conveying chain device (1); bending rails (9) which are used for enabling the hanging mechanism (3) to enter the slurry dipping pool (4) or the sand box (8) to swing upwards along hinge shafts of hinge assemblies (7) at the front edge of the slurry dipping pool (4) or the sand box (8) and to freely droop after entering the slurry dipping pool (4) or the sand box (8) are arranged at positions, corresponding to the slurry dipping pool (4) and the sand box (8), of a support frame body of the circulating conveying chain device (1);

bottom interval is equipped with a plurality of gas blow pipes (11) that are used for blowing up quartz sand in sand box (8), gas blow pipe (11) intercommunication has the air pump that can supply air with the pulse mode, sand box (8) top all is equipped with dust cage (10) that are used for the dust absorption along circulation conveying chain device (1) conveying chain direction of transfer axis both sides intermediate position, and the cover mouth both sides of dust cage (10) leave the interval respectively with between sand box (8) both ends inner wall, dust cage (10) intercommunication has the dust catcher.

2. A silica sol form drying system as set forth in claim 1, wherein: the handle bodies of the die handles (3-12) are coaxially and tightly connected with friction wheels (3-13) which can be correspondingly in friction fit with the bending tracks (9).

3. A silica sol form drying system as set forth in claim 2, wherein: the rail surface of the bending rail (9) is in parallel contact with the rim surface of the friction wheel (3-13).

4. A silica sol form drying system as set forth in claim 2, wherein: the top of the air drying box (6) is provided with a friction track which can be in friction fit with the friction wheels (3-13).

5. A silica sol form drying system as set forth in claim 1, wherein: the air drying box (6) is of a groove-shaped structure which enables the wax mould (2) to penetrate through the middle, a plurality of air outlets are arranged on two inner groove walls of the air drying box (6) of the groove-shaped structure in an aligned mode, and a dehumidifying device is arranged in the air drying box (6).

6. A silica sol form drying system as set forth in claim 1, wherein: the circulating conveying chain device (1) is in a U-shaped structural layout, and the air drying box (6) is in a U-shaped bending structure correspondingly matched with the U-shaped circulating conveying chain device (1).

7. A silica sol form drying system as set forth in claim 1, wherein: top all is equipped with guide plate (5) along circulation transfer chain device (1) transfer chain direction of transfer axis both sides intermediate position in thick liquid pond (4), and guide plate (5) both ends respectively with be stained with between the inner wall of thick liquid pond (4) both ends leave the interval, be stained with thick liquid pond (4) interior bottom and be equipped with the thick liquid pump that is used for taking out bottom silica sol coating to guide plate (5) face in thick liquid pond (4).

8. A silica sol form drying system as set forth in claim 1, wherein: one end of the plug (3-5) departing from the spring (3-6) is of a spherical structure, and the inner edge of the blind hole orifice of the butt joint rod (3-10) is provided with a chamfer structure.

9. A silica sol form drying system as set forth in claim 1, wherein: a torsion spring used for keeping the inserting pipe (3-1) vertical is sleeved on a shaft body of the hinge assembly (7) with a hinge shaft corresponding to two sides of the inserting pipe (3-1).

10. A silica sol form drying system as set forth in claim 1, wherein: the pipe body of the butt joint rod (3-10) and the sleeve body of the movable sleeve (3-7) are provided with anti-skid grains.

Technical Field

The invention relates to the technical field of investment casting and lost foam casting, in particular to a silica sol formwork drying system.

Background

As is known, investment casting using a silica sol mold shell means that a meltable mold is made of a fusible material (such as industrial paraffin), a plurality of layers of silica sol coatings are coated on the meltable mold, and the silica sol coatings are dried and hardened to form an integral mold shell, because the wax mold is easily affected by high temperature, the silica sol mold shell needs to be dried by air so as to improve the strength of the mold shell; the existing silica sol formwork manufacturing process is basically that an operator manually immerses a wax mould into a slurry dipping pool filled with silica sol coating to enable a layer of silica sol coating to be adhered to the surface of the wax mould, then a layer of quartz sand is scattered on the surface of the silica sol coating, then the wax mould is hung on a circulating conveyor chain, the circulating conveyor chain drives the wax mould to enter an air drying box to air-dry the silica sol coating to form a silica sol coating, and then the circulation is repeated until the thickness of the silica sol coating reaches the design requirement to form the silica sol formwork, so that the labor intensity of the operator is high, the production efficiency is low, and the phenomenon is a problem to be solved by the technical personnel in the field;

chinese patent (publication number: CN 202192232U) discloses a slurry dipping system for a silica sol shell, which comprises a catenary conveyor line, a lifting hook, a lifting appliance, a wax mold and a slurry dipping pool, wherein the lower end of the lifting hook is hinged with the upper end of the lifting appliance, the wax mold is connected with the lower end of the lifting appliance, a roller is arranged on the outer wall of the lifting appliance, and the roller can drive the wax mold to synchronously rotate; in actual production, the wax mold and the lifting appliance are connected and operated complicatedly, the wax mold is easy to damage, and the labor burden of operators is increased;

chinese patent (publication number: CN 202192231U) discloses an automatic sand spraying system for a silica sol shell, which comprises a horizontally arranged catenary conveyor line, a lifting hook, a lifting appliance, a wax mold and a sand spraying machine, wherein the wax mold is in the horizontal direction and enters the sand spraying machine, the sand spraying machine sprays sand, and the fact that the wax mold of the patent cannot achieve the effect of fully and uniformly spraying the sand, particularly, the end face of the bottom of the wax mold cannot be effectively attached with quartz sand and slurry accumulation is easily formed is found in actual production.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses a silica sol mold shell drying system.

In order to achieve the purpose, the invention adopts the following technical scheme:

a silica sol mould shell drying system comprises a circulating conveying chain device which is composed of a supporting frame and a conveying chain and used for conveying a wax mould, an air drying box used for air-drying the silica sol mould shell wrapped outside the wax mould, a hanging mechanism and a slurry dipping pool; a plurality of hanging mechanisms for hanging wax molds are uniformly and alternately hinged to a chain body of the conveying chain of the circulating conveying chain device through hinge components, and hinge shafts of the hinge components are correspondingly parallel to the length direction axis of the conveying chain of the circulating conveying chain device;

the hanging mechanism comprises a splicing component I and a splicing component II which can be correspondingly spliced to form a whole, the splicing component I comprises a splicing pipe with one end correspondingly hinged with the hinge component, a plurality of openings are arranged at the position, close to the end part, of the other end of the splicing pipe at intervals around the axis of the splicing pipe, sliding blocks are connected in the openings in a sliding mode, a mandrel is movably spliced at one end, corresponding to the sliding blocks, of the splicing pipe, the position, corresponding to the sliding blocks, of the mandrel is of a conical structure capable of pushing the sliding blocks out of the openings of the splicing pipe, and the small head end of the conical structure faces towards the hinge component;

one end of the sliding block, corresponding to the mandrel, is an inclined plane correspondingly matched with the conical structure of the mandrel, the other end of the sliding block is provided with a groove, and the position of the splicing tube, corresponding to the groove of the sliding block, is sleeved with an annular tension spring for preventing the sliding block from being separated from the opening of the splicing tube; a plug is arranged at one end of the inserting pipe, which is far away from the hinge assembly, and a spring for pushing the core shaft is arranged between the corresponding core shaft and the plug in the inserting pipe; a movable sleeve is movably sleeved at one end of the insertion pipe, which corresponds to the mandrel and deviates from the plug, a pin penetrating through the insertion pipe and correspondingly and tightly connected with the mandrel is arranged in the movable sleeve, and a strip-shaped groove which can enable the movable sleeve to drive the pin to move along the axis of the insertion pipe is arranged at the position of the insertion pipe, which corresponds to the pin;

the plug-in component II comprises a butt-joint rod, one end of the butt-joint rod is provided with a blind hole which can be correspondingly and movably plugged with one end of the plug-in pipe, which is far away from the hinge component, and an open end of the blind hole is internally provided with a ring groove which can be correspondingly clamped with the sliding block; the other end of the butt joint rod is coaxially and rotatably connected with a mold handle used for connecting a wax mold;

a slurry dipping pool containing silica sol coating, a sand box containing quartz sand and an air drying box are sequentially arranged below the circulating conveying chain device along the conveying direction of the circulating conveying chain device; bending rails which are used for enabling the hanging mechanism to enter the slurry dipping pool or the sand box to swing upwards along hinge assembly hinge shafts and to freely droop after entering the slurry dipping pool or the sand box are arranged at the positions, corresponding to the slurry dipping pool and the sand box, of the support frame body of the circulating conveying chain device;

the bottom interval is equipped with a plurality of gas blow pipes that are used for blowing up quartz sand in the sand box, and the gas blow pipe intercommunication has the air pump that can supply air with the pulse mode, and the sand box top all is equipped with the dust cage that is used for the dust absorption along the central point in cyclic transfer chain device conveying direction axis both sides, and the cover mouth both sides of dust cage leave the interval respectively with between the sand box both ends inner wall, and the dust cage intercommunication has the dust catcher.

Preferably, the die shank body is coaxially and tightly connected with a friction wheel which can be in friction fit with the bending rail correspondingly.

Preferably, the track surface of the bent track is in parallel contact with the rim surface of the friction wheel.

Preferably, the top of the air drying box is provided with a friction track capable of being in friction fit with a friction wheel.

Preferably, the air drying box is of a groove-shaped structure which enables the wax mould to penetrate through the middle of the air drying box, a plurality of air outlets are arranged on two inner groove walls of the air drying box in the groove-shaped structure in an aligned mode, and a dehumidifying device is arranged in the air drying box.

Preferably, the circulating transmission chain device is in a U-shaped structural layout, and the air drying box is in a U-shaped bending structure correspondingly matched with the U-shaped circulating transmission chain device.

Preferably, be stained with thick liquid pond top and all be equipped with the guide plate along the conveying direction axis intermediate position of endless conveyor chain device conveying direction axis in the thick liquid pond, and the guide plate both ends respectively with be stained with leave the interval between the inner wall of thick liquid pond both ends, be stained with the thick liquid pond bottom and be equipped with the thick liquid pump that is used for being stained with the thick liquid pond bottom silica sol coating in the thick liquid pond and take out to the guide plate face.

Preferably, one end, deviating from the spring, of the plug is of a spherical structure, and a chamfer structure is arranged on the inner edge of the orifice of the blind hole of the butt joint rod.

Preferably, a torsion spring for keeping the inserting pipe vertical is sleeved on the hinge shaft of the hinge assembly corresponding to the shaft bodies on the two sides of the inserting pipe.

Preferably, the butt joint rod pipe body and the sleeve body of the movable sleeve are both provided with anti-skid grains.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the silica sol formwork drying system disclosed by the invention has the advantages that the structure is simple, the production efficiency is high, the operation of automatically coating silica sol paint on the outer surface of a wax mould and automatically covering quartz sand on the silica sol coating can be realized, and the labor intensity of operators is effectively reduced; the hanging mechanism comprises a plug-in component I and a plug-in component II which can be correspondingly plugged to form a whole, during plugging operation, the movable sleeve can be controlled to drive the mandrel to move away from the hinge component along the axis of the plug-in pipe, so that the sliding block retracts into the corresponding opening of the plug-in pipe, the blind hole of the butt-joint rod and one end of the plug-in pipe, which is far away from the hinge component, can be correspondingly plugged, then the movable sleeve is loosened, the mandrel is pushed through the spring, so that the mandrel moves close to the hinge component along the axis of the plug-in pipe, the sliding block is pushed out of the corresponding opening of the plug-in pipe, the sliding block is correspondingly clamped with the annular groove, and the corresponding plugging of the plug-in component I and the plug-in component II can be realized, the structure is simple, the operation is convenient, and the operation efficiency can be effectively improved;

the positions of the support frame body of the circulating conveying chain device corresponding to the slurry dipping pool and the sand box are respectively provided with a bending track which is used for enabling the hanging mechanism to enter the slurry dipping pool or the sand box to swing upwards along the hinge assembly hinge shaft and to freely droop after entering the slurry dipping pool or the sand box, so that a wax mould can automatically enter and exit the slurry dipping pool and the sand box in the conveying process;

in addition, the handle body of the mold handle is coaxially and fixedly connected with a friction wheel which can be in friction fit with the bending track correspondingly, namely the friction wheel can drive the mold handle along the bending track to further drive the wax mold to rotate, so that the silica sol coating and the quartz sand can be uniformly adhered to the outer surface of the wax mold; the air-dry roof portion be equipped with can with friction pulley friction fit's friction track, after the wax matrix entered the air-dry case promptly, the friction pulley rolled along the friction track to drive the wax matrix and rotate, make the wax matrix catch wind evenly, and can make the even drying of wax matrix outward appearance silica sol mould shell, increase drying efficiency.

Drawings

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the hitch mechanism;

FIG. 4 is a schematic view of the hitch mechanism in a disengaged state;

FIG. 5 is a schematic view of the structure of a slurry tank;

FIG. 6 is a schematic view of the construction of the flask.

In the figure: 1. a circulating conveyor chain device; 2. wax pattern; 3. a hanging mechanism; 3-1, inserting a pipe; 3-2, a sliding block; 3-3, a mandrel; 3-4, a ring-shaped tension spring; 3-5, a plug; 3-6, a spring; 3-7, a movable sleeve; 3-8, pins; 3-9, strip-shaped grooves; 3-10, a butt joint rod; 3-11, ring grooves; 3-12, a die shank; 3-13, friction wheel; 4. a slurry dipping tank; 5. a baffle; 6. an air drying box; 7. a hinge assembly; 8. a sand box; 9. bending the track; 10. a dust collection cover; 11. and an air blowing pipe.

Detailed Description

The present invention will be explained in detail by the following embodiments, and the purpose of disclosing the invention is to protect all technical improvements within the scope of the present invention, in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and it is convenient to describe the present invention, and it is not intended to indicate or imply that the referred device or element must have a specific orientation.

With reference to the attached drawings 1-6, a silica sol formwork drying system comprises a circulating conveyor chain device 1 which is composed of a support frame and a conveyor chain and used for conveying a wax mold 2, an air drying box 6 which is used for air drying the silica sol formwork wrapped outside the wax mold 2, a hanging mechanism 3 and a slurry dipping pool 4; the chain body of the conveying chain of the circulating conveying chain device 1 is uniformly and alternately hinged with a plurality of hanging mechanisms 3 for hanging the wax molds 2 through hinge assemblies 7, and hinged shafts of the hinge assemblies 7 are correspondingly parallel to the length direction axis of the conveying chain of the circulating conveying chain device 1, namely, the hanging mechanisms 3 can only swing towards two sides of the conveying direction axis of the conveying chain of the circulating conveying chain device 1;

the hanging mechanism 3 comprises a plug-in component I and a plug-in component II which can be correspondingly plugged to form a whole, the plug-in component I comprises a plug-in pipe 3-1 with one end correspondingly hinged with the hinge component 7, the other end of the plug-in pipe 3-1 is provided with a plurality of openings at intervals around the axis of the plug-in pipe 3-1 near the end part, the openings are internally and slidably connected with sliding blocks 3-2, one end of the plug-in pipe 3-1 corresponding to the sliding blocks 3-2 is movably plugged with a mandrel 3-3, the position of the mandrel 3-3 corresponding to the sliding blocks 3-2 is a conical structure which can push the sliding blocks 3-2 out of the openings of the plug-in pipe 3-1, and the small end of the conical structure faces the hinge component 7, namely, when the mandrel 3-3 moves close to the hinge assembly 7 along the axis of the splicing tube 3-1, the sliding block 3-2 can be ejected out of a corresponding opening of the splicing tube 3-1;

one end of the sliding block 3-2, corresponding to the core shaft 3-3, is an inclined surface correspondingly matched with the conical structure of the core shaft 3-3, the other end of the sliding block 3-2 is provided with a groove, and the position of the splicing tube 3-1, corresponding to the groove of the sliding block 3-2, is sleeved with an annular tension spring 3-4 for preventing the sliding block 3-2 from separating from the opening of the splicing tube 3-1, namely when the core shaft 3-3 moves away from the hinge assembly 7 along the axis of the splicing tube 3-1, the annular tension spring 3-4 can pull the sliding block 3-2 to contract towards the inside of the splicing tube 3-1; a plug 3-5 is arranged at one end of the insertion tube 3-1 departing from the hinge assembly 7, a spring 3-6 for pushing the core shaft 3-3 is arranged between the corresponding core shaft 3-3 and the plug 3-5 in the insertion tube 3-1, namely the core shaft 3-3 can be pushed by the spring 3-6, so that the core shaft 3-3 can push the slide block 3-2 out of a corresponding opening of the insertion tube 3-1; a movable sleeve 3-7 is movably sleeved at one end of the plug pipe 3-1, which is opposite to the plug 3-3, of the mandrel 3-3, a pin 3-8 which penetrates through the plug pipe 3-1 and is correspondingly and fixedly connected with the mandrel 3-3 is arranged in the movable sleeve 3-7, a strip-shaped groove 3-9 which enables the movable sleeve 3-7 to drive the pin 3-8 to move along the axis of the plug pipe 3-1 is arranged at the position of the plug pipe 3-1, which corresponds to the pin 3-8, namely the movable sleeve 3-7 can drive the mandrel 3-3 to move along the axis of the plug pipe 3-1, so that the slide block 3-2 is controlled to extend out of or retract into a corresponding opening of the plug pipe 3-1;

the splicing component II comprises a splicing rod 3-10, one end of the splicing rod 3-10 is provided with a blind hole which can be correspondingly and movably spliced with one end of the splicing tube 3-1 departing from the hinge component 7, the open end of the blind hole is internally provided with a ring groove 3-11 which can be correspondingly spliced with the slide block 3-2, namely, during the splicing operation, the movable sleeve 3-7 can be controlled to drive the mandrel 3-3 to move away from the hinge component 7 along the axis of the splicing tube 3-1, so that the slide block 3-2 retracts into a corresponding opening of the splicing tube 3-1, the blind hole of the splicing rod 3-10 and one end of the splicing tube 3-1 departing from the hinge component 7 can be correspondingly spliced, then the movable sleeve 3-7 is loosened, the mandrel 3-3 is pushed through a spring 3-6, so that the mandrel 3-3 moves close to the hinge component 7 along the axis of the splicing tube 3-1, the sliding block 3-2 is pushed out of a corresponding opening of the insertion pipe 3-1, so that the sliding block 3-2 is correspondingly clamped with the annular groove 3-11, and the corresponding insertion of the insertion component I and the insertion component II can be realized, the structure is simple, the operation is convenient, and the operation efficiency can be effectively improved; according to the requirement, one end of the plug 3-5, which is far away from the spring 3-6, is of a spherical structure, the inner edge of the orifice of the blind hole of the butt joint rod 3-10 is provided with a chamfer structure, so that the plugging operation of the plugging component I and the plugging component II can be facilitated, the rapid butt joint is realized, and when the plug 3-5 is correspondingly contacted with the bottom of the blind hole of the butt joint rod 3-10, the opening of the plugging pipe 3-1 is corresponding to the annular groove 3-11, so that the sliding block 3-2 is corresponding to the annular groove 3-11, and the convenience of the corresponding plugging of the plugging component I and the plugging component II is further improved; the pipe body of the butt joint rod 3-10 and the sleeve body of the movable sleeve 3-7 are provided with anti-slip lines, so that the operation hand feeling of an operator can be effectively improved, and the butt joint rod 3-10 or the movable sleeve 3-7 can be prevented from accidentally slipping; the other end of the butt joint rod 3-10 is coaxially and rotatably connected with a mold handle 3-12 used for connecting the wax mold 2, namely, one end of the mold handle 3-12, which is far away from the butt joint rod 3-10, can be inserted into the wax mold 2 when the wax mold 2 is manufactured, and the wax mold 2 is cooled and shaped and then is fixedly connected with the mold handle 3-12 into a whole, so that the wax mold 2 can be transferred through the mold handle 3-12;

a slurry dipping pool 4 containing silica sol coating, a sand box 8 containing quartz sand and an air drying box 6 are sequentially arranged below the circulating conveying chain device 1 along the conveying direction of the circulating conveying chain device 1; the positions of the support frame body of the circulating conveying chain device 1 corresponding to the slurry dipping pool 4 and the sand box 8 are both provided with a bending track 9 which is used for leading the hanging mechanism 3 to enter the slurry dipping pool 4 or the sand box 8 and to deflect upwards along a hinge shaft of a hinge assembly 7 at the front edge of the sand dipping pool 4 or the sand box 8, namely, the hanging mechanism 3 can swing upwards before entering the slurry dipping pool 4 or the sand box 8 under the guiding action of the bending track 9, so that the lowest end of the wax mold 2 is higher than the top of the slurry dipping pool 4 or the sand box 8, the circulating conveying chain device 1 drives the hanging mechanism 3 to further drive the wax mold 2 to continue to advance, the hanging mechanism 3 freely droops along the bending track 9 after the wax mold 2 is positioned above the slurry dipping pool 4 or the sand box 8, so that the wax mold 2 can automatically enter the slurry dipping pool 4 or the sand box 8 and leave the slurry dipping pool 4 or the sand box 8 by the same action, and ensure that the liquid level of the silica sol coating in the slurry dipping pool 4 can submerge the wax mold 2, so that a layer of silica sol coating can be automatically adhered to the surface of the wax mould 2;

a plurality of air blowing pipes 11 used for blowing the quartz sand in the sand box 8 are arranged at intervals at the bottom in the sand box 8, the air blowing pipes 11 are communicated with an air pump capable of supplying air in a pulse mode, dust collection hoods 10 used for collecting dust are arranged at the middle positions of two sides of the axis of the top of the sand box 8 along the conveying direction of the conveying chain device 1, intervals are reserved between two sides of a hood opening of each dust collection hood 10 and the inner walls of two ends of the sand box 8 respectively, the dust collection hoods 10 are communicated with a dust collector, namely, after a wax mold 2 with a layer of silica sol coating adhered to the surface enters the sand box 8, the air pump is started to blow air in a pulse mode, the quartz sand in the sand box 8 is blown up through the air blowing pipes 11, the quartz sand can be adhered to the silica sol coating on the outer surface of the wax mold 2, the pulse type air blowing can prevent the quartz sand in the sand box 8 from being blown out to pollute the air, meanwhile, the dust collector is started to collect dust through the dust collection hoods 10, and prevent the quartz sand in the sand box 8 from floating randomly, causing air pollution; after quartz sand is adhered to the outer surface of the silica sol coating, the circulating conveying chain device 1 drives the hanging mechanism 3 to further drive the wax mold 2 to continue to advance, so that the wax mold 2 enters the air drying box 6, the silica sol coating on the outer surface of the wax mold 2 is air-dried and shaped, a silica sol mold shell is formed, the circulation is repeated, the silica sol mold shell on the outer surface of the wax mold 2 is thickened layer by layer, the inserting assembly II can be taken down until the thickness of the silica sol mold shell on the outer surface of the wax mold 2 meets the design requirement, and the next process is carried out;

in addition, the mold handles 3-12 are coaxially and fixedly connected with friction wheels 3-13 which can be in friction fit with the bending rail 9 correspondingly, namely the friction wheels 3-13 can drive the mold handles 3-12 along the bending rail 9 to further drive the wax mold 2 to rotate, so that silica sol paint and quartz sand can be uniformly adhered to the outer surface of the wax mold 2; the track surface of the bending track 9 is in parallel contact with the rim surface of the friction wheel 3-13, namely the track surface of the bending track 9 can be correspondingly twisted according to the running track of the friction wheel 3-13, so that the track surface of the bending track 9 is in parallel contact with the rim surface of the friction wheel 3-13, the friction wheel 3-13 can roll along the track surface of the bending track 9, and the wax mold 2 is driven to rotate along the axis of the mold handle 3-12; the top of the air drying box 6 is provided with a friction track which can be in friction fit with the friction wheels 3-13, namely, after the wax mould 2 enters the air drying box 6, the friction wheels 3-13 roll along the friction track, so that the wax mould 2 is driven to rotate, the wax mould 2 is uniformly ventilated, the silica sol mould shell on the surface of the wax mould 2 can be uniformly dried, and the drying efficiency is increased; the air drying box 6 is of a groove-shaped structure which enables the wax mold 2 to penetrate through the middle, a plurality of air outlets are arranged on two inner groove walls of the air drying box 6 of the groove-shaped structure in an aligned mode, a dehumidifying device is arranged in the air drying box 6 and can enable air blown out from the air drying box 6 to be kept dry, drying efficiency and drying uniformity are further improved, and shell cracking caused by uneven drying is avoided;

the circulating conveying chain device 1 is in a U-shaped structural layout, the air drying box 6 is in a U-shaped bending structure correspondingly matched with the U-shaped circulating conveying chain device 1, and the lengths of the circulating conveying chain device 1 and the air drying box 6 can be effectively lengthened, so that the hanging amount of the wax mould 2 is increased, the length of an air drying treatment section is increased, the air drying treatment effect is ensured, the production efficiency is improved, and meanwhile, the occupied area of the circulating conveying chain device 1 is reduced; a torsion spring for keeping the inserting pipe 3-1 vertical is sleeved on a shaft body of the hinge assembly 7, wherein the hinge shaft corresponds to two sides of the inserting pipe 3-1; namely, the connecting pipe 3-1 can be kept vertical under the action of the torsion spring after being separated from the bending track 9, so that the phenomenon that the wax mold 2 collides with other objects due to accidents caused by random swing of the hanging mechanism 3 in the process of conveying through the circulating conveying chain device 1 is avoided;

be stained with 1 transfer chain direction of transfer axis of top edge circulation transfer chain device in thick liquid pond 4 intermediate position all is equipped with guide plate 5, and 5 both ends of guide plate respectively with be stained with leave the interval between the inner wall of 4 both ends in thick liquid pond, be stained with the thick liquid pond 4 bottom and be equipped with the thick liquid pump that is used for taking out to 5 faces of guide plate the bottom silica sol coating in the thick liquid pond 4 will be stained with, make through the thick liquid pump and be stained with the silica sol coating in the thick liquid pond 4 and can circulate from top to bottom, avoid being stained with the phenomenon that the layering appears precipitating in the silica sol coating in the thick liquid pond 4.

When the silica sol mold shell drying system is implemented, the movable sleeve 3-7 can be controlled to drive the mandrel 3-3 to move away from the hinge assembly 7 along the axis of the insertion pipe 3-1 to enable the sliding block 3-2 to retract into the corresponding opening of the insertion pipe 3-1, the blind hole of the butt joint rod 3-10 and one end of the plug pipe 3-1 departing from the hinge component 7 can be correspondingly plugged, then the movable sleeve 3-7 is loosened, the mandrel 3-3 is pushed through the spring 3-6, thereby leading the mandrel 3-3 to move close to the hinge assembly 7 along the axis of the insertion pipe 3-1, ejecting the sliding block 3-2 out of the corresponding opening of the insertion pipe 3-1, leading the sliding block 3-2 to be correspondingly clamped with the annular groove 3-11, and hanging the wax mould 2 on the chain body of the conveying chain of the circulating conveying chain device 1; the circulating conveying chain device 1 drives the wax mould 2 to sequentially enter the slurry dipping pool 4, the sand box 8 and the air drying box 6, silica sol coating is adhered, quartz sand is adhered and air drying operation is carried out, so that a silica sol mould shell is formed on the outer surface of the wax mould 2, circulating conveying is carried out, and the wax mould 2 can be taken down until the thickness of the silica sol mould shell on the outer surface of the wax mould 2 meets the design requirement.

The invention is not described in detail in the prior art, and it is apparent to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.