阅读说明：本技术 一种消失模铸造型壳烘干加固处理方法 (Drying and reinforcing treatment method for lost foam casting shell ) 是由 汤鹏飞 葛佳乐 于 2020-06-12 设计创作，主要内容包括：本发明涉及一种消失模铸造型壳烘干加固处理方法,包括底板、承放台、承放装置和推挤装置,底板上端安装有承放台,承放台上端中部安装有承放装置,承放装置外侧前后对称设置有推挤装置,推挤装置通过螺纹配合的方式与承放台连接。本发明可以解决现有的设备在针对阶梯圆柱形的铸造型壳进行夹持加固时,不能对铸造型壳进行夹持,铸造型壳在烘干时易出现倾斜倒下的现象,在对铸造型壳夹持时易对铸造型壳侧壁造成破坏,从而减少了材料的浪费,同时,不能从内部对铸造型壳进行夹持,由于铸造型壳外表面与设备的接触,从而降低了铸造型壳外表面与烘干室内空气的接触面积,易出现铸造型壳表面烘干程度不一致的现象等问题。(The invention relates to a drying and reinforcing treatment method for lost foam casting shells, which comprises a bottom plate, a bearing platform, a bearing device and a pushing device, wherein the bearing platform is arranged at the upper end of the bottom plate, the bearing device is arranged in the middle of the upper end of the bearing platform, the pushing devices are symmetrically arranged at the front and back of the outer side of the bearing device, and are connected with the bearing platform in a thread fit mode. The invention can solve the problems that the existing equipment can not clamp the casting shell when clamping and reinforcing the stepped cylindrical casting shell, the casting shell is easy to fall down in an inclined way when drying, the side wall of the casting shell is easy to damage when clamping the casting shell, thereby reducing the waste of materials, meanwhile, the casting shell can not be clamped from the inside, and the contact area between the outer surface of the casting shell and the air in a drying chamber is reduced due to the contact between the outer surface of the casting shell and the equipment, the phenomenon that the drying degree of the surface of the casting shell is inconsistent is easy to occur, and the like.)

1. The drying and reinforcing treatment method for the lost foam casting shell uses a lost foam casting shell drying and reinforcing device which comprises a bottom plate (1), a bearing platform (2), a bearing device (3) and a pushing device (4), and is characterized in that: the concrete method for reinforcing the shell by adopting the shell drying and reinforcing equipment is as follows:

s1, equipment detection: before the equipment is used, the equipment is subjected to routine inspection in a manual mode;

s2, material placement: manually selecting a casting shell with a stepped cylindrical shape, and placing the casting shell with the stepped cylindrical shape on the pushing device (4);

s3, clamping and reinforcing: the pushing device (4) pushes the stepped cylindrical casting shell into the bearing device (3), the bearing device (3) supports and fixes the casting shell, and then the pushing device (4) is reset manually;

s4, drying: placing the equipment in a drying chamber in a manual or mechanical auxiliary mode, and drying the casting shell in the drying chamber;

s5, collecting and warehousing: manually taking the casting shell dried in the step S4 out of the bearing device (3), collecting the casting shell in a centralized manner, and storing the casting shell in a warehouse;

the upper end of the bottom plate (1) is provided with a bearing platform (2), the middle part of the upper end of the bearing platform (2) is provided with a bearing device (3), pushing devices (4) are symmetrically arranged at the front and back of the outer side of the bearing device (3), and the pushing devices (4) are connected with the bearing platform (2) in a thread fit mode;

the bearing and placing device (3) comprises a bearing and placing plate (31), connecting strips (32), a threaded rod (33), a connecting circular plate (34), an air outlet rod (35), an adjusting mechanism (36), a sliding rod (37), a supporting mechanism (38) and a limiting mechanism (39), wherein the bearing and placing plate (31) is installed on the upper end surface of the bearing and placing platform (2), the connecting strips (32) are symmetrically installed on the front and back of the outer end surface of the bearing and placing plate (31), circular holes are uniformly formed in the connecting strips (32), the outer ends of the connecting strips (32) are uniformly provided with the threaded rod (33), a circular hole is formed in the middle of the threaded rod (33), the connecting circular plate (34) is installed at the outer end of the threaded rod (33), the air outlet rod (35) is installed at the outer end of the connecting circular plate (34), the adjusting mechanism (36) is connected to the inside of the air outlet, a sliding rod (37) is arranged in the rectangular groove, the outer surface of the sliding rod (37) is connected with a supporting mechanism (38) in a sliding fit mode, a limiting mechanism (39) is arranged on the outer side of the supporting mechanism (38), the limiting mechanism (39) is connected with a connecting circular plate (34) in a sliding fit mode, and the inner end of the limiting mechanism (39) is connected with a threaded rod (33) in a threaded fit mode;

the adjusting mechanism (36) comprises an adjusting rod (361), a rotating bulge (362), a circular ring seat (363), a clamping head (364), a clamping spring (365), an adjusting plate (366) and an adjusting spring (367), wherein the adjusting rod (361) is connected with the air outlet rod (35) in a sliding fit mode, the rotating bulge (362) is installed on the outer surface of the adjusting rod (361), the circular ring seat (363) is arranged on the outer surface of the rotating bulge (362), the circular ring seat (363) is installed on the outer surface of the adjusting rod (361), circular holes are uniformly formed in the outer surface of the circular ring seat (363), the clamping head (364) is connected inside the circular hole in a sliding fit mode, the clamping spring (365) is connected between the clamping head (364) and the circular ring seat (363), the adjusting plate (366) is installed at the outer end of the adjusting rod (361), circular through holes are uniformly formed in the adjusting plate (366), a high-, an adjusting spring (367) is connected between the inner end of the adjusting plate (366) and the air outlet rod (35).

2. The drying and reinforcing treatment method for the lost foam casting shell according to claim 1, characterized in that: push device (4) including pushing frame (41), pushing plate (42), half round platform (43) and feed screw (44), pushing frame (41) be connected with holding platform (2) through sliding fit's mode, push frame (41) side wall inner end face on evenly installing and push plate (42), pushing plate (42) inboard is provided with half round platform (43), half round platform (43) are installed on pushing frame (41) lower wall, push frame (41) lower extreme is connected with feed screw (44) through screw-thread fit's mode, feed screw (44) are connected with holding platform (2) through the bearing.

3. The drying and reinforcing treatment method for the lost foam casting shell according to claim 1, characterized in that: supporting mechanism (38) including bracing piece (381), supporting spring (382), jacking pole (383) and cardboard (384), bracing piece (381) be connected with slide bar (37) through sliding fit's mode, be connected with supporting spring (382) between bracing piece (381) and connection plectane (34), jacking pole (383) is installed to bracing piece (381) inner, jacking pole (383) is connected with connection plectane (34) through sliding fit's mode, jacking pole (383) and play gas pole (35) sliding connection are provided with the gyro wheel on jacking pole (383), cardboard (384) are installed to bracing piece (381) outer end, be provided with high temperature resistant rubber sleeve on bracing piece (381) the surface.

4. The drying and reinforcing treatment method for the lost foam casting shell according to claim 1, characterized in that: stop gear (39) including thread bush (391), wire rope (392), limiting plate (393) and spacing spring (394), thread bush (391) be connected with threaded rod (33) through screw-thread fit's mode, thread bush (391) section of thick bamboo outer surface evenly installs wire rope (392), the wire rope (392) other end is connected with limiting plate (393), limiting plate (393) are connected with connection plectane (34) through sliding fit's mode, evenly be provided with the rectangle through-hole on limiting plate (393), be connected with spacing spring (394) between connection plectane (34) and limiting plate (393).

5. The drying and reinforcing treatment method for the lost foam casting shell according to claim 1, characterized in that: the bearing plate (31) is evenly provided with rectangular grooves, the side walls of the rectangular grooves are provided with holes, the holes are connected with the circular holes, and reinforcing ribs are symmetrically arranged at the lower end of the bearing plate (31).

6. The drying and reinforcing treatment method for the lost foam casting shell according to claim 1, characterized in that: and air outlet holes are uniformly formed in the air outlet rod (35), and the air outlet holes are in sliding fit with the clamping head (364).

Technical Field

The invention relates to the technical field of lost foam casting, in particular to a drying and reinforcing treatment method for a lost foam casting shell.

Background

The lost foam casting is a novel casting method, and mainly comprises the steps of bonding and combining paraffin or foam models with similar sizes and shapes to form a model cluster, coating refractory paint on the model cluster, drying the model cluster, burying the model cluster in dry quartz sand for vibration modeling, pouring under negative pressure to gasify the model, enabling liquid metal to occupy the position of the model, and forming a casting after solidification and cooling; the lost foam casting has the characteristics of high casting size precision, accurate shape and size, good internal and external quality and the like.

At present, when the existing equipment is used for clamping and reinforcing a casting shell in a stepped cylindrical shape, the following defects generally exist: 1. the existing equipment can not clamp the casting shell, the casting shell is easy to fall down in an inclined way when being dried, and the side wall of the casting shell is easy to be damaged when the casting shell is clamped, so that the waste of materials is reduced; 2. the existing equipment can not clamp the casting shell from the inside, and because the contact between the outer surface of the casting shell and the equipment reduces the contact area between the outer surface of the casting shell and the air in a drying chamber, the phenomenon that the drying degree of the surface of the casting shell is inconsistent can easily occur, and the inside of the casting shell can not be directly dried, so that the drying efficiency of the casting shell is reduced.

Disclosure of Invention

Technical problem to be solved

The invention can solve the problems that the prior device can not clamp the casting shell when clamping and reinforcing the stepped cylindrical casting shell, the casting shell is easy to incline and fall down when drying, the side wall of the casting shell is easy to damage when clamping the casting shell, thereby reducing the waste of materials, meanwhile, the casting shell can not be clamped from the inside, the contact area between the outer surface of the casting shell and the air in a drying chamber is reduced due to the contact between the outer surface of the casting shell and the device, the phenomenon that the drying degree of the surface of the casting shell is inconsistent is easy to occur, and the interior of the casting shell can not be directly dried, thereby reducing the drying efficiency of the casting shell, and the like.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme that the drying and reinforcing treatment method for the lost foam casting shell uses the drying and reinforcing equipment for the lost foam casting shell, the shell drying and reinforcing equipment comprises a bottom plate, a bearing platform, a bearing device and a pushing device, and the specific method for reinforcing the shell by adopting the shell drying and reinforcing equipment is as follows:

s1, equipment detection: before the equipment is used, the equipment is subjected to routine inspection in a manual mode;

s2, material placement: manually selecting a casting shell with a stepped cylindrical shape, and placing the casting shell with the stepped cylindrical shape on a pushing device;

s3, clamping and reinforcing: the pushing device pushes the stepped cylindrical casting shell into the bearing device, the bearing device supports and fixes the casting shell, and then the pushing device is manually reset;

s4, drying: placing the equipment in a drying chamber in a manual or mechanical auxiliary mode, and drying the casting shell in the drying chamber;

s5, collecting and warehousing: and (4) manually taking the casting shell dried in the step (S4) out of the bearing device, collecting the casting shell in a centralized manner, and storing the casting shell in a warehouse.

The upper end of the bottom plate is provided with a bearing platform, the middle part of the upper end of the bearing platform is provided with a bearing device, the front and back of the outer side of the bearing device are symmetrically provided with pushing devices, and the pushing devices are connected with the bearing platform in a thread fit mode.

The bearing and placing device comprises a bearing and placing plate, a connecting strip, a threaded rod, a connecting circular plate, an air outlet rod, an adjusting mechanism, a sliding rod, a supporting mechanism and a limiting mechanism, wherein the bearing and placing plate is arranged on the upper end surface of a bearing and placing platform, the connecting strip is symmetrically arranged on the front and back of the outer end surface of the bearing and placing plate, circular holes are uniformly formed in the connecting strip, the threaded rod is uniformly arranged at the outer end of the connecting strip, the circular hole is formed in the middle of the threaded rod, the connecting circular plate is arranged at the outer end of the threaded rod, the air outlet rod is connected with the adjusting mechanism in a sliding fit manner inside, a rectangular groove is uniformly formed in the outer end of the connecting circular plate, the sliding rod is arranged inside the rectangular groove, the outer surface of the sliding rod is connected with the supporting mechanism in a sliding fit manner, the limiting mechanism is arranged on the outer, during specific work, firstly, the limiting mechanism is manually rotated according to the size of the casting shell, the limiting mechanism is subjected to size adjustment, then the casting shell is placed into the pushing device in a manual mode, the pushing device pushes the casting shell into the outer side of the supporting mechanism, the adjusting mechanism is matched with the pushing device to drive the supporting mechanism to expand, the function of supporting and clamping is achieved, the adjusting mechanism is matched with the pushing device and clamps the side wall of the casting shell in the transmission process, damage to the casting shell during clamping is avoided, the supporting mechanism is matched with the limiting mechanism, damage to the side wall of the casting shell during clamping is avoided, finally, the pushing device and the limiting mechanism are manually reset, the drying area of the casting shell is increased, and the drying efficiency is improved.

The adjusting mechanism comprises an adjusting rod, a rotating bulge, a circular ring seat, a clamping head, a clamping spring, an adjusting plate and an adjusting spring, wherein the adjusting rod is connected with the air outlet rod in a sliding fit manner, the rotating bulge is arranged on the outer surface of the adjusting rod, the circular ring seat is arranged on the outer surface of the adjusting rod and is uniformly provided with a circular hole, the inner part of the circular hole is connected with the clamping head in a sliding fit manner, the clamping spring is connected between the clamping head and the circular ring seat, the outer end of the adjusting rod is provided with the adjusting plate, circular through holes are uniformly formed in the adjusting plate, the outer end of the adjusting plate is provided with a high-temperature resistant rubber pad, the adjusting spring is connected between the inner end of the adjusting plate and the air outlet rod, when the adjusting mechanism works, the pushing device drives the casting shell to be matched, the clamping head is matched with the air outlet rod to realize the function of clamping and fixing, so that the function of supporting and clamping the casting shell is realized.

Preferably, the pushing device comprises a pushing frame, a pushing plate, a semi-circular table and a feeding screw rod, the pushing frame is connected with the bearing platform in a sliding fit mode, the pushing plate is uniformly installed on the inner end face of the side wall of the pushing frame, the semi-circular table is arranged on the inner side of the pushing plate and installed on the lower wall of the pushing frame, the lower end of the pushing frame is connected with the feeding screw rod in a thread fit mode, the feeding screw rod is connected with the bearing platform through a bearing, firstly, a casting shell is placed on the semi-circular table in a manual mode, then, the feeding screw rod is manually rotated, the feeding screw rod drives the pushing frame to feed, and finally, after the casting shell is fixed by the supporting mechanism, the pushing frame is manually reset.

Preferably, supporting mechanism include bracing piece, supporting spring, jacking rod and cardboard, the bracing piece pass through sliding fit's mode and be connected with the slide bar, be connected with supporting spring between bracing piece and the connection plectane, jacking rod is installed to bracing piece inner, jacking rod passes through sliding fit's mode and is connected with the connection plectane, jacking rod and air outlet rod sliding connection, be provided with the gyro wheel on the jacking rod, the cardboard is installed to the bracing piece outer end, be provided with high temperature resistant rubber sleeve on the bracing piece surface, concrete during operation, rotatory arch drives the bracing piece through jacking rod and expands to the realization supports the chucking function to casting shell.

Preferably, stop gear include thread bush, wire rope, limiting plate and spacing spring, the thread bush pass through screw-thread fit's mode and be connected with the threaded rod, wire rope is evenly installed to the thread bush surface, the wire rope other end is connected with the limiting plate, the limiting plate passes through sliding fit's mode and is connected with the connection plectane, evenly be provided with the rectangle through-hole on the limiting plate, be connected with spacing spring between connection plectane and the limiting plate, concrete during operation, according to the manual thread bush that rotates of the size of casting shell, the thread bush passes through wire rope and drives the limiting plate and carry out size adjustment, thereby with the bracing piece cooperation, avoid casting shell lateral wall to cause destruction, afterwards, manual rotation thread bush, spacing spring drives the limiting.

Preferably, hold and to put the board on evenly be provided with the rectangle recess, be provided with the hole on the rectangle recess lateral wall, the hole is connected with circular port, holds and to put board lower extreme symmetry and be provided with the strengthening rib, concrete work is real, the rectangle recess is convenient for the gas entering of drying chamber and is cast the intracavity of shell to the drying efficiency of cast shell has been improved.

Preferably, the air outlet rod is evenly provided with air outlet holes, the air outlet holes are in sliding fit with the clamping head, and when the air outlet device works, air in the drying chamber conveniently enters the inner cavity of the casting shell through the air outlet holes, so that the drying efficiency of the casting shell is improved.

(III) advantageous effects

1. The drying and reinforcing treatment method for the lost foam casting shell can clamp the casting shell, so that the phenomenon that the casting shell falls down in an inclined mode during drying is avoided, and the side wall of the casting shell can be prevented from being damaged during clamping of the casting shell, so that the waste of materials is reduced;

2. according to the drying and reinforcing treatment method for the lost foam casting shell, the adopted bearing device can clamp the casting shell from the inside, so that the contact area between the outer surface of the casting shell and the air in a drying chamber is increased, the phenomenon that the drying degree of the surface of the casting shell is inconsistent is avoided, the inside of the internal casting shell can be dried at the same time, and the drying efficiency of the casting shell is improved;

3. the drying and reinforcing treatment method for the lost foam casting shell provided by the invention adopts a multi-station mode, so that the drying efficiency of the casting shell is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a left side view of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 3 in accordance with the present invention;

FIG. 6 is an enlarged view of the invention taken in the direction of N in FIG. 5;

fig. 7 is an enlarged view of the invention in the direction X of fig. 5.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 7, in order to achieve the above object, the present invention adopts the following technical solution, a drying and reinforcing method for lost foam casting shell, which uses a drying and reinforcing apparatus for lost foam casting shell, the drying and reinforcing apparatus for lost foam casting shell includes a bottom plate 1, a bearing platform 2, a bearing device 3 and an extruding device 4, and the specific method for reinforcing shell by using the drying and reinforcing apparatus for lost foam casting shell is as follows:

s1, equipment detection: before the equipment is used, the equipment is subjected to routine inspection in a manual mode;

s2, material placement: manually selecting a casting shell of a stepped cylindrical shape, and placing the casting shell of the stepped cylindrical shape on the pushing device 4;

s3, clamping and reinforcing: the pushing device 4 pushes the stepped cylindrical casting shell into the bearing device 3, the bearing device 3 supports and fixes the casting shell, and then the pushing device 4 is manually reset;

s4, drying: placing the equipment in a drying chamber in a manual or mechanical auxiliary mode, and drying the casting shell in the drying chamber;

s5, collecting and warehousing: the casting shell dried in step S4 is manually taken out from the storage device 3, collected in a centralized manner, and stored in a warehouse.

The upper end of the bottom plate 1 is provided with a bearing platform 2, the middle part of the upper end of the bearing platform 2 is provided with a bearing device 3, pushing devices 4 are symmetrically arranged at the front and back of the outer side of the bearing device 3, and the pushing devices 4 are connected with the bearing platform 2 in a threaded fit mode.

The bearing and placing device 3 comprises a bearing and placing plate 31, a connecting strip 32, a threaded rod 33, a connecting circular plate 34, an air outlet rod 35, an adjusting mechanism 36, a sliding rod 37, a supporting mechanism 38 and a limiting mechanism 39, wherein the bearing and placing plate 31 is installed on the upper end surface of the bearing and placing platform 2, the connecting strip 32 is symmetrically installed on the front and back of the outer end surface of the bearing and placing plate 31, circular holes are evenly formed in the connecting strip 32, the threaded rod 33 is evenly installed at the outer end of the connecting strip 32, a circular hole is formed in the middle of the threaded rod 33, the connecting circular plate 34 is installed at the outer end of the threaded rod 33, the air outlet rod 35 is installed at the outer end of the connecting circular plate 34, the adjusting mechanism 36 is connected inside the air outlet rod 35 in a sliding fit mode, a rectangular groove is evenly formed in the outer end of the connecting circular plate 34, the sliding rod, the limiting mechanism 39 is connected with the connecting circular plate 34 in a sliding fit mode, the inner end of the limiting mechanism 39 is connected with the threaded rod 33 in a threaded fit mode, during specific work, firstly, the limiting mechanism 39 is manually rotated according to the size of a casting shell, the size of the limiting mechanism 39 is adjusted, then, the casting shell is placed into the pushing device 4 in a manual mode, the pushing device 4 pushes the casting shell into the outer side of the supporting mechanism 38, the adjusting mechanism 36 is matched with the pushing device 4 to drive the supporting mechanism 38 to expand, so that the supporting and clamping functions are realized, in addition, the adjusting mechanism 36 is matched with the pushing device 4, the side wall of the casting shell is clamped in the transmission process, the casting shell is prevented from being damaged in the clamping process, the supporting mechanism 38 is matched with the limiting mechanism 39, the side wall of the casting shell is prevented from being damaged in the clamping process, and finally, the pushing device 4 and the limiting mechanism 39 are reset manually, so that the drying area of the casting shell is increased, and the drying efficiency is improved.

Bear and put board 31 on evenly be provided with the rectangle recess, be provided with the hole on the rectangle recess lateral wall, the hole is connected with the circular port, bear and put board 31 lower extreme symmetry and be provided with the strengthening rib, concrete work is real, the rectangle recess is convenient for the gas entering of drying chamber and is cast the intracavity of shell to the drying efficiency of cast shell has been improved.

The air outlet rod 35 is evenly provided with air outlet holes, the air outlet holes are in sliding fit with the clamping heads 364, and when the air outlet rod works, air in the drying chamber can enter the inner cavity of the casting shell conveniently through the air outlet holes, so that the drying efficiency of the casting shell is improved.

The adjusting mechanism 36 comprises an adjusting rod 361, a rotating protrusion 362, a circular ring seat 363, a clamping head 364, a clamping spring 365, an adjusting plate 366 and an adjusting spring 367, the adjusting rod 361 is connected with the air outlet rod 35 in a sliding fit manner, the rotating protrusion 362 is installed on the outer surface of the adjusting rod 361, the circular ring seat 363 is arranged on the outer surface of the rotating protrusion 362, circular holes are evenly formed in the outer surface of the adjusting rod 361, the clamping head 364 is connected inside the circular holes in a sliding fit manner, the clamping spring 365 is connected between the clamping head 364 and the circular ring seat 363, the adjusting plate 366 is installed at the outer end of the adjusting rod 361, circular through holes are evenly formed in the adjusting plate 366, a high-temperature resistant rubber pad is arranged at the outer end of the adjusting plate 366, the adjusting spring 367 is connected between the inner end of the adjusting plate 366 and the air outlet rod 35, and during specific work, the pushing, the adjusting plate 366 drives the supporting mechanism 38 to expand by rotating the protrusion 362, and the clamping head 364 is matched with the air outlet rod 35 to realize the function of clamping and fixing, so that the function of supporting and clamping the casting shell is realized.

Supporting mechanism 38 include the bracing piece 381, supporting spring 382, jacking pole 383 and cardboard 384, the bracing piece 381 be connected with slide bar 37 through sliding fit's mode, be connected with supporting spring 382 between bracing piece 381 and the connection plectane 34, jacking pole 383 is installed to bracing piece 381 inner, jacking pole 383 is connected with connection plectane 34 through sliding fit's mode, jacking pole 383 and air outlet rod 35 sliding connection, be provided with the gyro wheel on jacking pole 383, cardboard 384 is installed to bracing piece 381 outer end, be provided with high temperature resistant rubber sleeve on the bracing piece 381 outer surface, during specific work, rotatory arch 362 drives bracing piece 381 through jacking pole 383 and expands, thereby realize supporting the function of chucking to the casting shell.

Stop gear 39 include thread bush 391, wire rope 392, limiting plate 393 and spacing spring 394, thread bush 391 be connected with threaded rod 33 through screw-thread fit's mode, thread bush 391 barrel surface evenly installs wire rope 392, the wire rope 392 other end is connected with limiting plate 393, limiting plate 393 is connected with connection plectane 34 through sliding fit's mode, evenly be provided with the rectangle through-hole on the limiting plate 393, be connected with spacing spring 394 between connection plectane 34 and the limiting plate 393, in the concrete during operation, according to the manual rotation thread bush 391 of the size of casting type shell, thread bush 391 drives limiting plate 393 through wire rope 392 and carries out size adjustment, thereby cooperate with bracing piece 381, avoid casting type shell lateral wall to cause the destruction, afterwards, manual rotation thread bush 391, spacing spring 394 drives limiting plate 393 and resets.

The pushing device 4 comprises a pushing frame 41, a pushing plate 42, a semicircular table 43 and a feeding screw 44, the pushing frame 41 is connected with the bearing platform 2 in a sliding fit mode, the pushing plate 42 is uniformly installed on the inner end face of the side wall of the pushing frame 41, the semicircular table 43 is arranged on the inner side of the pushing plate 42, the semicircular table 43 is installed on the lower wall of the pushing frame 41, the feeding screw 44 is connected to the lower end of the pushing frame 41 in a thread fit mode, the feeding screw 44 is connected with the bearing platform 2 through a bearing, firstly, a casting shell is placed on the semicircular table 43 in a manual mode, then, the feeding screw 44 is manually rotated, the pushing frame 41 is driven by the feeding screw 44 to feed, and finally, after the casting shell is fixed by the supporting mechanism 38, the pushing frame 41 is manually reset.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.