阅读说明：本技术 一种反击式制砂机 (Counterattack formula system sand machine ) 是由 鲁培 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种反击式制砂机,包括制砂机壳体,所述制砂机壳体的左上端固定连接有第一连接板,所述固定块的上端开设有用于锁紧的固定槽,所述防尘机构包括呈“L”形结构且下端外表面设置有螺纹的安装杆、贴合设置在风罩下端的固定板、固定连接在所述固定板中部的防尘网和螺纹连接在所述安装杆外表面的限位套,所述筛板安装在固定框的中部,所述固定框上端的左右两侧均固定连接有定位块,所述定位块插接在连接架中部的连接孔中。该反击式制砂机,能够实现自动上料,大大节省了人力,能够在制砂过程中对产生的灰尘进行吸收,保护现场操作人员的身体健康,并且可对所制成的砂进行充分筛分,提高砂的精细度。(The invention discloses a counterattack type sand making machine which comprises a sand making machine shell, wherein a first connecting plate is fixedly connected to the left upper end of the sand making machine shell, a fixing groove for locking is formed in the upper end of the fixing block, a dustproof mechanism comprises an installation rod which is of an L-shaped structure, a thread is arranged on the outer surface of the lower end of the installation rod, a fixing plate which is attached to the lower end of a fan cover, a dustproof net which is fixedly connected to the middle of the fixing plate and a limiting sleeve which is connected to the outer surface of the installation rod in a threaded mode, a sieve plate is installed in the middle of the fixing frame, positioning blocks are fixedly connected to the left side and the right side of the upper end of the fixing frame, and the positioning blocks are inserted into connecting holes in the middle of a connecting frame. This reaction type system sand machine can realize automatic feeding, has saved the manpower greatly, can absorb the dust that produces at the system sand in-process, and protection site operation personnel's is healthy to can carry out abundant screening to the sand of making, improve the fineness of sand.)

1. An impact sand making machine, comprising:

the sand making machine comprises a sand making machine shell (1), wherein the left upper end of the sand making machine shell (1) is fixedly connected with a first connecting plate (2), the right end of the first connecting plate (2) is welded with a fixing block (3) with a limiting effect, and the upper end of the fixing block (3) is provided with a fixing groove (4) for locking;

the dustproof mechanism (13) comprises an L-shaped mounting rod (14) with threads on the outer surface of the lower end, a fixing plate (15) attached to the lower end of the fan cover (12), a dustproof net (16) fixedly connected to the middle of the fixing plate (15), and a limiting sleeve (17) in threaded connection with the outer surface of the mounting rod (14);

the dust screen (16) and the fixing plate (15) form a dismounting structure with the mounting rod (14) at the lower end of the fan cover (12) through the limiting sleeve (17), and the mounting rod (14) is inserted into through holes at the left end and the right end of the fixing plate (15);

the screen plate (24) is installed in the middle of the fixing frame (25), positioning blocks (26) are fixedly connected to the left side and the right side of the upper end of the fixing frame (25), the positioning blocks (26) are inserted into connecting holes in the middle of the connecting frame (27), and the left end and the right end of the connecting frame (27) are connected with the output end of the electric telescopic rod (28);

wherein, the electric telescopic rods (28) are respectively arranged at the left side and the right side of the lower end of the sand making machine shell (1).

2. The impact sand making machine according to claim 1, wherein: a conveying device (5) for feeding is arranged on the left side of the sand making machine shell (1), the lower end of the conveying device (5) is fixedly connected with a fixing frame (6) with a supporting function, and a rotating wheel (7) is installed at the lower end of the fixing frame (6);

wherein, the right upper end of the conveying device (5) is fixedly connected with a second connecting plate (8).

3. The impact sand making machine according to claim 2, wherein: the left end of the second connecting plate (8) is fixedly connected with a connecting block (9) in a T-shaped structure, the second connecting plate (8) is connected with the first connecting plate (2) through a connecting mechanism (10), and the second connecting plate (8) and the connecting mechanism (10) are used for installing and fixing the sand making machine shell (1) and the conveying device (5);

wherein, a disassembly structure is formed between the sand making machine shell (1) and the conveying device (5) through a connecting mechanism (10).

4. The impact sand making machine according to claim 3, wherein: the connecting mechanism (10) comprises a connecting rod (1001) in an L-shaped structure, a connecting spring (1002) sleeved on the outer surface of the middle part of the connecting rod (1001), a connecting sleeve (1003) fixedly connected to the movable end of the connecting spring (1002), a limiting block (1004) fixedly connected to the upper end of the connecting sleeve (1003) in a hollow structure, and a connecting bolt (1005) in threaded connection with the upper end of the limiting block (1004);

wherein, the connecting bolt (1005) is inserted in the middle of the fixing groove (4).

5. The impact sand making machine according to claim 4, wherein: the limiting block (1004) is sleeved outside the fixing block (3) with a limiting effect, the limiting block (1004) and the connecting rod (1001) form a relative sliding structure through the connecting sleeve (1003), and the connecting rod (1001) is inserted in the middle of the connecting sleeve (1003);

wherein, the connecting rod (1001) is sleeved at the middle part of the connecting block (9).

6. The impact sand making machine according to claim 1, wherein: an exhaust fan (11) is installed at the upper end of the sand making housing (1), the exhaust fan (11) is connected with a fan cover (12) through a pipeline, a movable column (22) with an adjusting function is inserted at the right upper end of the sand making housing (1), the lower end of the movable column (22) is rotatably connected with an adjusting block (21), and the movable column (22) is connected with an auxiliary block (23) in a threaded mode;

wherein, the auxiliary block (23) is welded at the upper right end of the sand making machine shell (1).

7. The impact sand making machine according to claim 6, wherein: the lower end of the adjusting block (21) is hinged with a mounting plate (19) with mounting, the lower end of the mounting plate (19) is provided with impact plates (20) at equal intervals, the left lower side of the impact plates (20) is provided with a crusher (18), and the crusher (18) is rotatably connected to the middle part of the sand making machine shell (1);

the mounting plate (19) drives the impact plate (20) to form a turnover structure inside the sand making machine shell (1).

8. The impact sand making machine according to claim 1, wherein: the upper end of the connecting frame (27) is fixedly connected with a connecting column (29) in a vertical state, the middle of the upper end of the connecting column (29) is inserted with a cross rod (30), and the cross rods (30) are respectively and fixedly connected to the left end and the right end of a connecting frame (31);

wherein, the connecting frame (31) is fixedly connected on the inner side wall of the sand making machine shell (1), and the connecting frame (31) is positioned below the crusher (18).

9. The impact sand making machine according to claim 8, wherein: the connecting frame (27) forms a relative left-right sliding structure through a connecting column (29), a cross rod (30) and a connecting frame (31), the left end and the right end of the lower end of the connecting frame (27) are fixedly connected with fixing columns (33) with threads on the outer surfaces, and the left end and the right end of each fixing column (33) are provided with auxiliary rods (34) with limiting effects;

wherein the auxiliary rod (34) is fixedly connected to the connecting frame (27).

10. The impact sand making machine according to claim 9, wherein: a sliding structure is formed between the auxiliary rod (34) and a movable plate (32) with the L-shaped longitudinal section, the movable plates (32) are respectively inserted at the left end and the right end of the fixed frame (25), and one end of the movable plate (32) far away from the vertical central axis of the sieve plate (24) is provided with a fixed sleeve (35) in an attaching manner;

wherein, the fixed sleeve (35) is in threaded connection with the outer surface of the fixed column (33).

Technical Field

The invention relates to the technical field of sand making machines, in particular to a counterattack type sand making machine.

Background

The counterattack type sand making machine is one of sand making machines, the sand making machine is used for crushing various medium-hardness solid materials to produce artificial machine-made sand, and provides high-quality sand stone materials for industries such as highways, railways, water conservancy, airports, buildings, cement, metallurgy and the like, compared with the traditional sand making machine, the counterattack type sand making machine has the advantages that the prepared sand is fine in granularity and high in quality, can meet the requirements of sand used in various industries, and is very wide in use;

however, the existing counterattack type sand making machine still has the following defects:

1. in the actual use process of the existing impact sand making machine, manual feeding is usually adopted, the feeding process is time-consuming and labor-consuming, the actual sand making efficiency is affected, more manpower is needed, and the labor intensity is higher;

2. in the actual sand making process, the existing impact sand making machine has large dust, so that the dust in the working environment flies, the physical health of field operation workers is influenced, and the practicability is not high;

3. present counterattack formula system sand machine, after the system sand is accomplished, inconvenient sand to making fully filters, and filterable efficiency is not high, and it is comparatively inconvenient to the impurity clearance of crossing off the filter simultaneously, complex operation.

Therefore, we propose a counterattack sand maker in order to solve the problems set forth above.

Disclosure of Invention

The invention aims to provide a counterattack type sand making machine, and aims to solve the problems that in the actual using process of the existing counterattack type sand making machine provided by the background art, manual feeding is generally adopted, the feeding process is time-consuming and labor-consuming, the actual sand making efficiency is influenced, more manpower is needed, the labor intensity is higher, in the actual sand making process, dust is larger, dust in the working environment flies, the body health of field operation workers is influenced, the practicability is not high, after the sand making is finished, the manufactured sand is inconvenient to be fully filtered, the filtering efficiency is not high, meanwhile, filtered impurities are inconvenient to clean, and the operation is complicated.

In order to achieve the purpose, the invention provides the following technical scheme: a counterattack type sand making machine comprises a sand making machine shell, wherein a first connecting plate is fixedly connected to the left upper end of the sand making machine shell, a fixing block with a limiting effect is welded at the right end of the first connecting plate, and a fixing groove for locking is formed in the upper end of the fixing block;

the dustproof mechanism comprises an installation rod which is of an L-shaped structure, a fixing plate which is attached to the lower end of the fan cover, a dustproof net which is fixedly connected to the middle of the fixing plate and a limiting sleeve which is in threaded connection with the outer surface of the installation rod, wherein the outer surface of the lower end of the installation rod is provided with threads;

the dust screen and the fixed plate form a detachable structure at the lower end of the fan cover through a limiting sleeve and an installation rod, and the installation rod is inserted into through holes at the left end and the right end of the fixed plate;

the screen plate is installed in the middle of the fixing frame, the left side and the right side of the upper end of the fixing frame are fixedly connected with positioning blocks, the positioning blocks are inserted into connecting holes in the middle of the connecting frame, and the left end and the right end of the connecting frame are connected with the output end of the electric telescopic rod;

wherein, electric telescopic handle installs respectively in the left and right sides of system sand machine casing lower extreme.

Preferably, a conveying device for feeding is arranged on the left side of the sand making machine shell, the lower end of the conveying device is fixedly connected with a fixing frame with a supporting function, and a rotating wheel is mounted at the lower end of the fixing frame;

and the right upper end of the conveying device is fixedly connected with a second connecting plate.

Preferably, a connecting block in a T-shaped structure is fixedly connected to the left end of the second connecting plate, the second connecting plate is connected with the first connecting plate through a connecting mechanism, and the second connecting plate and the connecting mechanism are used for installing and fixing the sand making machine shell and the conveying device;

wherein, constitute the dismantlement structure through coupling mechanism between sand making machine casing and the conveyer.

Preferably, the connecting mechanism comprises a connecting rod in an L-shaped structure, a connecting spring sleeved on the outer surface of the middle part of the connecting rod, a connecting sleeve fixedly connected to the movable end of the connecting spring, a limiting block in a hollow structure fixedly connected to the upper end of the connecting sleeve, and a connecting bolt in threaded connection with the upper end of the limiting block;

wherein, the connecting bolt is inserted in the middle of the fixing groove.

Preferably, the limiting block is sleeved outside the fixing block with a limiting effect, a relative sliding structure is formed between the limiting block and the connecting rod through the connecting sleeve, and the connecting rod is inserted in the middle of the connecting sleeve;

wherein, the connecting rod sleeve is arranged in the middle of the connecting block.

Preferably, an exhaust fan is installed at the upper end of the sand making machine shell, the exhaust fan is connected with the fan cover through a pipeline, a movable column with an adjusting function is inserted into the right upper end of the sand making machine shell, the lower end of the movable column is rotatably connected with an adjusting block, and the movable column is connected with the auxiliary block in a threaded mode;

wherein, the auxiliary block is welded at the upper right end of the sand making machine shell.

Preferably, the lower end of the adjusting block is hinged with a mounting plate with mounting function, the lower end of the mounting plate is provided with impact plates at equal intervals, the left lower side of the impact plate is provided with a crusher, and the crusher is rotatably connected to the middle part of the sand making machine shell;

wherein, the mounting panel drives the impact plate and constitutes flip structure in the inside of system sand machine casing.

Preferably, the upper end of the connecting frame is fixedly connected with a connecting column in a vertical state, the middle part of the upper end of the connecting column is inserted with a cross rod, and the cross rods are respectively and fixedly connected to the left end and the right end of the connecting frame;

wherein, the connecting frame fixed connection is on the inside wall of system sand casing body, the connecting frame is located the below of cracker.

Preferably, the connecting frame forms a relative left-right sliding structure through the connecting column and between the cross rod and the connecting frame, the left end and the right end of the lower end of the connecting frame are fixedly connected with fixing columns with threads on the outer surfaces, and the left end and the right end of each fixing column are provided with auxiliary rods with limiting effects;

wherein, the auxiliary rod is fixedly connected on the connecting frame.

Preferably, a sliding structure is formed between the auxiliary rod and a movable plate with an L-shaped longitudinal section, the movable plates are respectively inserted at the left end and the right end of the fixed frame, and one end of the movable plate, which is far away from the vertical central axis of the sieve plate, is provided with a fixed sleeve in an attaching manner;

wherein, the fixed sleeve is in threaded connection with the outer surface of the fixed column.

Compared with the prior art, the invention has the beneficial effects that: the impact sand making machine has the advantages that in the actual use process, the conveying device can be conveniently connected with the sand making machine shell through the connecting mechanism, the second connecting plate and the first connecting plate, automatic feeding can be realized through the arrangement of the conveying device, manual feeding is not needed, manpower is greatly saved, dust generated in the sand making process can be absorbed through the arrangement of the exhaust fan, the air cover and the dustproof mechanism, dust flying is avoided, the body health of field operators is protected, the sieve plate is driven to move left and right in the sand making machine shell through the connecting frame, the made sand is fully screened, the fineness of sand is improved, the sand is more uniform, meanwhile, the sieve plate forms a dismounting structure in the sand making machine shell through the fixing frame and the movable plate, and screened impurities can be dismounted and cleaned, the practicability is high, the operation is convenient, and the use is very convenient;

1. the automatic feeding device is provided with a conveying device, a second connecting plate, a first connecting plate and a connecting mechanism, the first connecting plate is fixedly connected to the upper left end of the sand making machine shell, the second connecting plate is fixedly connected to the upper right end of the conveying device, and the second connecting plate is connected with the first connecting plate through the connecting mechanism, so that the conveying device can be conveniently and rapidly installed at the corresponding position of the left end of the sand making machine shell;

2. the dust removal device is provided with the air exhauster, the fan cover and the dustproof mechanism, air is exhausted through the dustproof mechanism, dust generated in the sand making process can be sucked away, the dust is prevented from flying, the body health of field operation workers is influenced, meanwhile, the dust is prevented from entering the air exhauster and damaging the air exhauster through the arrangement of the dustproof net, the dustproof net forms a disassembly structure at the lower end of the fan cover, the dustproof net can be disassembled and cleaned conveniently, the fan cover is prevented from being blocked, and therefore a better dust removal effect is achieved, and the practicability is high;

3. be equipped with the sieve, link and fly leaf, through the setting of sieve, can sieve the sand of making, and the link drives the sieve and removes about the inside of making the sand machine casing, can make the screening that the sand can be rapider, the efficiency of screening has been improved, the flow of whole system sand has been promoted, the structure is dismantled through the inside constitution of fly leaf at the sand machine casing to the sieve simultaneously, impurity to the screening that can be very convenient is cleared up, moreover, the steam generator is simple in structure, and is very convenient to use.

Drawings

FIG. 1 is a front view of a cutaway structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a sectional view of the adjusting block, the movable column and the auxiliary block;

FIG. 4 is a front view of the connecting mechanism of the present invention;

FIG. 5 is a schematic view of a connection structure of the connecting rod, the connecting sleeve and the connecting block according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 7 is a front view of the connection between the dust-proof mechanism and the fan housing;

FIG. 8 is an enlarged view of the structure of FIG. 1 at C according to the present invention;

FIG. 9 is a schematic bottom view of the connecting frame, the auxiliary rod and the movable plate of the present invention;

FIG. 10 is a front view of the sectional structure of the fixed frame and the movable plate of the present invention;

FIG. 11 is a front view of the connection of the connecting frame, the connecting column and the connecting frame.

In the figure: 1. a sand making machine shell; 2. a first connecting plate; 3. a fixed block; 4. fixing grooves; 5. a conveying device; 6. a fixed mount; 7. a rotating wheel; 8. a second connecting plate; 9. connecting blocks; 10. a connecting mechanism; 1001. a connecting rod; 1002. a connecting spring; 1003. connecting sleeves; 1004. a limiting block; 1005. a connecting bolt; 11. an exhaust fan; 12. a fan housing; 13. a dust-proof mechanism; 14. mounting a rod; 15. a fixing plate; 16. a dust screen; 17. a limiting sleeve; 18. a crusher; 19. mounting a plate; 20. a counterattack plate; 21. an adjusting block; 22. a movable post; 23. an auxiliary block; 24. a sieve plate; 25. a fixing frame; 26. positioning blocks; 27. a connecting frame; 28. an electric telescopic rod; 29. connecting columns; 30. a cross bar; 31. a connecting frame; 32. a movable plate; 33. fixing a column; 34. an auxiliary lever; 35. and (4) fixing sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: a counterattack type sand making machine comprises a sand making machine shell 1, a dustproof mechanism 13 and a sieve plate 24.

When the impact sand making machine is used, firstly, a sand making machine shell 1 shown in the figure 1 is placed at a corresponding place, the lower end of a conveying device 5 is fixedly connected with a fixing frame 6 with a supporting function, the lower end of the fixing frame 6 is provided with a rotating wheel 7, the conveying device 5 is moved to a position close to the sand making machine shell 1 through the rotating wheel 7, as shown in the figure 2, the right upper end of the conveying device 5 is fixedly connected with a second connecting plate 8, the left end of the sand making machine shell 1 is fixedly connected with a first connecting plate 2, the left end of the second connecting plate 8 is fixedly connected with a connecting block 9 in a T-shaped structure, and the second connecting plate 8 is connected with the first connecting plate 2 through a connecting mechanism 10;

as shown in fig. 4 and 5, the connecting mechanism 10 includes a connecting rod 1001 in an "L" shape, a connecting spring 1002 sleeved on the outer surface of the middle portion of the connecting rod 1001, a connecting sleeve 1003 fixedly connected to the movable end of the connecting spring 1002, a limiting block 1004 in a hollow structure fixedly connected to the upper end of the connecting sleeve 1003, and a connecting bolt 1005 screwed to the upper end of the limiting block 1004, wherein the connecting rod 1001 is sleeved outside the connecting block 9;

through sliding the connecting sleeve 1003, the connecting spring 1002 elastically deforms, the limiting block 1004 is aligned to the fixed block 3, then the connecting sleeve 1003 is loosened, the connecting spring 1002 restores to elastically deform, the limiting block 1004 is sleeved outside the fixed block 3, then the connecting bolt 1005 in threaded connection with the upper end of the limiting block 1004 is rotated, the lower end of the connecting bolt 1005 is inserted into the fixing groove 4, the limiting block 1004 is locked and limited, through the arrangement of the connecting mechanism 10, the second connecting plate 8 and the first connecting plate 2 can be conveniently fixed, and therefore the conveying device 5 is attached to and installed at the left end of the sand making machine shell 1;

the raw materials required by sand making are fed into the shell 1 of the sand making machine through the conveying device 5, automatic feeding can be achieved, manual feeding is not needed, labor is greatly saved, feeding efficiency is improved, the sand making process is accelerated, meanwhile, the upper end of the conveying device 5 is connected with the baffle, falling in the feeding process is prevented through the arrangement of the baffle, and a better feeding effect is achieved;

as shown in fig. 1 and 3, a movable column 22 connected to the middle of an auxiliary block 23 through a rotating screw thread is provided, the movable column 22 and an adjusting block 21 are rotated, and the adjusting block 21 is hinged to a mounting plate 19, so that the mounting plate 19 drives an impact plate 20 to turn inside a sand making machine shell 1, the angle of the impact plate 20 is adjusted according to the actual processing situation, and a better sand making effect is achieved, a crusher 18 is rotatably connected inside the sand making machine shell 1, the rear end of the crusher 18 is connected with a driving motor installed at the rear end of the sand making machine shell 1, which is not shown in the figure, so that the crusher 18 is driven to rotate inside the sand making machine shell 1, the raw material is crushed, and the raw material is impacted by the impact plate 20, crushed for multiple times, and processed correspondingly;

in order to avoid dust flying, as shown in fig. 1, 6 and 7, an exhaust fan 11 is installed at the upper end of a sand making housing 1, the exhaust fan 11 is connected with a fan housing 12 through a pipeline, and the exhaust fan 11 is used for exhausting air, so that dust can be sucked away and prevented from flying, harm is caused to the health of field operators, meanwhile, a dustproof mechanism 13 is arranged at the lower end of the fan housing 12, and the dustproof mechanism 13 comprises an installation rod 14 which is in an L-shaped structure, the outer surface of the lower end of the installation rod is provided with threads, a fixing plate 15 which is attached to the lower end of the fan housing 12, a dustproof net 16 which is fixedly connected to the middle of the fixing plate 15, and a limiting sleeve 17 which is connected to the outer surface of the installation rod 14 through threads;

through the arrangement of the dust screen 16, dust can be prevented from entering the exhaust fan 11 and damaging the exhaust fan 11, and meanwhile, when the dust on the dust screen 16 is excessive, the limiting sleeve 17 connected to the lower end of the installation rod 14 in an L-shaped structure through rotating threads can be separated from the installation rod 14, the limiting sleeve 17 loosens the fixation of the fixing plate 15, so that the dust screen 16 and the limiting sleeve 17 are disassembled at the lower end of the fan housing 12, the dust on the dust screen 16 is cleaned, the dust screen 16 is prevented from being blocked, a better dust-proof effect is achieved, after the cleaning is completed, the installation rod 14 is inserted into a corresponding groove on the fixing plate 15, the fixing plate 15 is fixed through threaded connection between the limiting sleeve 17 and the installation rod 14, and the installation of the dust screen 16 is completed;

as shown in fig. 1, 8 and 11, a connecting frame 31 is arranged below the crusher 18, a sieve plate 24 is arranged at the lower end of the connecting frame 31, the sand made can fall on the sieve plate 24 completely through the arrangement of the connecting frame 31, the sand is sieved through the arrangement of the sieve plate 24, the sand is more uniform, the sieve plate 24 is arranged in the middle of a fixed frame 25, a positioning block 26 is fixedly connected to the upper end of the fixed frame 25, the positioning block 26 is inserted into a connecting frame 27, electric telescopic rods 28 are arranged at the left end and the right end of the connecting frame 27, the connecting frame 27 is pushed by the electric telescopic rods 28 to drive the sieve plate 24 to move left and right inside the sand maker shell 1, a connecting column 29 is fixedly connected to the upper end of the connecting frame 27, the connecting column 29 and a cross rod 30 slide left and right, the sand can be sieved through the sieve plate 24 more rapidly, and the sieving efficiency is greatly improved, the practicability is high;

the screened sand is discharged through the lower end of the shell 1 of the sand making machine, in the whole sand making process, and after the use is finished, the power supply is turned off, and a door at the front side of the lower end of the sand making machine shell 1 is opened, which is not shown in the figure, as shown in figures 8, 9 and 10, the fixed sleeve 35 which is connected on the fixed column 33 through rotating the screw thread can loosen the limit of the fixed sleeve 35 to the movable plate 32 which is in an L-shaped structure, pull the movable plate 32, so that the movable plate 32 slides on the auxiliary rod 34, the movable plate 32 moves to one end far away from the vertical central axis of the sieve plate 24, so that the movable plate 32 is separated from the fixed frame 25, at this time, the fixed frame 25 drives the screen plate 24 to move downwards due to the gravity, the positioning block 26 is separated from the connecting frame 27, the sieve plate 24 is disassembled, so that impurities screened on the sieve plate 24 can be conveniently cleaned, the operation is convenient, and the use is very convenient;

after the cleaning is finished, the positioning block 26 is aligned to the groove in the connecting frame 27, the positioning block 26 is inserted into the groove in the middle of the connecting frame 27, the movable plates 32 are inserted into the left end and the right end of the fixed frame 25, the movable plates 32 are limited through the fixed sleeve 35, the fixed frame 25 and the screen plate 24 are installed, and the box door on the lower side of the front end of the sand making machine shell 1 is closed, so that the sand making machine shell is very convenient to use.

The details which are not described in the present specification belong to the prior art known to those skilled in the art, the standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the drawings, the specific connection mode of each part adopts the conventional means of bolt, rivet, welding, etc. which are mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.