CN112264392B

CN112264392B - Casting molding dust-cleaning and sand-removing structure using mechanical mode

Info

Publication number: CN112264392B
Application number: CN202010924911.9A
Authority: CN
Inventors: 潘明
Original assignee: Linqing Jinguang Machinery Manufacturing Co ltd
Current assignee: LINQING JINGUANG MACHINERY MANUFACTURING CO.,LTD.
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2022-01-18
Anticipated expiration: 2040-09-05
Also published as: CN112264392A

Abstract

The invention relates to the technical field of casting molding, and discloses a casting molding dust-cleaning and sand-removing structure by using a mechanical mode, which comprises a casting table, wherein a mold is placed on the upper surface of the casting table, the upper surface of the side end of the casting table is rotatably connected with a connecting block, a meshing disc is movably clamped on the surface of the inner ring at the bottom end of the connecting block, a first shifting sheet is fixedly connected on the surface of the inner ring of the meshing disc, a first ratchet wheel is movably connected on the inner ring of the meshing disc, a lead screw is movably clamped on the inner ring of the first ratchet wheel, a threaded ring is fixedly connected on the surface of the inner ring at the upper end of the connecting block, a spray shaft is rotatably connected at the upper end of the lead screw, a spray gun is fixedly connected at the outer end of the spray shaft, and a gear is fixedly connected on the outer ring of the spring shaft. This utilize casting molding dust cleaning sand removal structure of mechanical system uses through the cooperation of lead screw, screw ring and spray gun to the automatic effect of removing sand to the sand casting mould has been reached in the casting molding.

Description

Casting molding dust-cleaning and sand-removing structure using mechanical mode

Technical Field

The invention relates to the technical field of casting molding, in particular to a casting molding dust and sand removing structure in a mechanical mode.

Background

In the sand casting of the casting molding, a sand mold die which is just pressed needs to be sprayed on the surface, particularly a pouring surface of the sand mold die by using a compressed air spray gun, and sand grains and dust remained on the surface of a casting are blown away by using high-speed flowing air, so that the phenomenon that the accuracy of a poured finished product is too low and even the poured casting is damaged due to the sand grains in the later pouring process is avoided. Common sand removal in the current stage adopts a mode of manually using an air spray gun, and the operation is required to be carried out after the operation of a mould and a sand mould is stopped, so that the whole process is low in efficiency, and the missed parts are easy to cause the defective products.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a casting molding dust and sand removing structure in a mechanical mode, which has the advantages of high sand removing efficiency and thorough sand removing of a mold and solves the problems of low sand removing efficiency, incomplete sand removing and easy part leakage of the mold.

(II) technical scheme

In order to realize the purposes of high sand removing efficiency and thorough sand removing of the mould, the invention provides the following technical scheme: a casting molding dust-cleaning sand-removing structure utilizing a mechanical mode comprises a casting table, wherein a mold is placed on the upper surface of the casting table, a connecting block is rotatably connected to the upper surface of the side end of the casting table, a meshing disc is movably clamped on the surface of the inner ring at the bottom end of the connecting block, a first shifting sheet is fixedly connected to the surface of the inner ring of the meshing disc, a first ratchet wheel is movably connected to the inner ring of the meshing disc, a lead screw is movably clamped on the inner ring of the first ratchet wheel, a threaded ring is fixedly connected to the surface of the inner ring at the upper end of the connecting block, a spray shaft is rotatably connected to the upper end of the lead screw, a spray gun is fixedly connected to the outer end of the spray shaft, a second shifting sheet is fixedly connected to the side end of the spray shaft, a limiting block is fixedly connected to the outer ring of the spray shaft, a second ratchet wheel is movably connected to the outer ring of the spray shaft, an arc groove is formed in the outer ring of the second ratchet wheel, and a spring shaft is fixedly connected to the outer ring of the spray shaft, the outer ring of the spring shaft is fixedly connected with a gear, the outer ring of the spraying shaft is fixedly connected with a ball valve, and the side end of the spraying gun is fixedly connected with a corrugated pipe.

Preferably, the inner ring surface of the connecting block and the outer ring surface of the meshing disc are provided with threads, and the two structures are meshed and connected with each other through the threads.

Preferably, the first shifting piece is fixedly connected to the surface of the inner ring of the meshing disc through a spring, the number of the first shifting piece is three, the first shifting piece and the third shifting piece are uniformly distributed by taking the axis of the meshing disc as a reference, and the second shifting piece and the third shifting piece are arranged in the same way.

Preferably, the meshing disc is mutually clamped with a groove formed in the surface of the outer ring of the screw rod through a ball movably connected with the surface of the inner ring.

Preferably, the groove formed in the surface of the screw rod is a bidirectional groove.

Preferably, the spray gun is filled with high-pressure gas from the outside from the side end.

Preferably, the limiting block is movably clamped inside the arc groove, and the radian of the arc groove is not greater than sixty degrees.

Preferably, the connecting blocks and the screw rods are arranged in a structure directly connected with the connecting blocks and the screw rods, and the connecting blocks and the screw rods are divided into two groups and are symmetrically distributed on two sides of the casting table respectively by taking the casting table as a reference.

Preferably, the ball valve is movably connected in the pipe of the spray gun.

Preferably, the inner ring of the threaded ring is intermeshed with the gear.

(III) advantageous effects

Compared with the prior art, the invention provides a casting modeling dust and sand removing structure by using a mechanical mode, which has the following beneficial effects:

1. this utilize casting molding dust cleaning sand removal structure of mechanical system uses through the cooperation of lead screw, screw ring and spray gun to reach the automatic effect of removing sand to the sand casting mould in the casting molding, thereby replaced artifical manual flow that uses the spray gun to remove sand, saved the in-service use time of whole foundry goods.

2. This utilize casting molding dust cleaning sand removal structure of mechanical system uses through the cooperation of meshing dish, ratchet one, plectrum one, ratchet two, plectrum two, spring shaft, gear and ball valve to reach the effect of accurate sand removal, the automatic structure of sand removal above the cooperation has improved the efficiency and the quality of the sand removal of mould, has certain practical value in the in-service use process.

Drawings

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

FIG. 2 is an enlarged schematic view of the invention at point A in FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is a schematic rear cross-sectional view of the construction of the spray gun of the present invention;

fig. 5 is a schematic cross-sectional view of a meshing disk structure of the present invention.

In the figure: 1. casting a platform; 2. a mold; 3. connecting blocks; 4. meshing the disc; 5. a first shifting sheet; 6. a first ratchet wheel; 7. a screw rod; 8. a threaded ring; 9. spraying a shaft; 10. a spray gun; 11. a second poking sheet; 12. a limiting block; 13. a second ratchet wheel; 14. an arc groove; 15. a spring shaft; 16. a gear; 17. a ball valve; 18. a bellows.

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. 1-5, a casting mold dust-cleaning and sand-removing structure using a mechanical method comprises a casting table 1, a mold 2 is placed on the upper surface of the casting table 1, a connecting block 3 and a screw rod 7 are rotatably connected to the upper surface of the side end of the casting table 1, and the two connecting blocks and the screw rod are directly connected to form a structure, and the two connecting blocks are two groups in total and are respectively and symmetrically distributed on two sides of the casting table 1 by taking the casting table 1 as a reference. The design that two spray guns 10 are intercrossed can improve the effect of sand removal deashing, avoids appearing the sand removal dead angle.

The movable joint in bottom inner circle surface of connecting block 3 has and meshes dish 4, and the inner circle surface of connecting block 3 and the outer lane surface of meshing dish 4 are seted up threadedly, and two structures pass through screw thread intermeshing and connect. The connecting block 3 can drive the meshing disc 4 to rotate through the threads when rotating.

The inner ring surface of the meshing disk 4 is fixedly connected with a first shifting piece 5, the first shifting piece 5 is fixedly connected to the inner ring surface of the meshing disk 4 through springs, the number of the first shifting piece 5 is three, the first shifting piece and the third shifting piece are uniformly distributed by taking the axis of the meshing disk 4 as a reference, and the second shifting piece 11 is the same. The design of a plurality of plectrums has improved the stability of interlock between the structure.

The inner ring of the meshing disc 4 is movably connected with a first ratchet wheel 6, the inner ring of the first ratchet wheel 6 is movably clamped with a screw rod 7, and the meshing disc 4 is mutually clamped with a groove formed in the outer ring surface of the screw rod 7 through balls movably connected with the surface of the inner ring. The balls can reduce the friction force generated between the structures while ensuring that the meshing disc 4 and the screw rod 7 are stably meshed and driven with each other. The groove formed in the surface of the screw rod 7 is a bidirectional groove. When the meshing disc 4 rotates in a single direction, the meshing disc can reciprocate up and down under the guide of the bidirectional groove of the screw rod 7.

The surface of the inner ring at the upper end of the connecting block 3 is fixedly connected with a threaded ring 8, and the inner ring of the threaded ring 8 is meshed with a gear 16. When the vertical position of the connecting block 3 is changed, if the threaded ring 8 contacts the gear 16, the gear 16 drives the spray shaft 9 to rotate.

The upper end of the screw rod 7 is rotatably connected with a spray shaft 9, the outer end of the spray shaft 9 is fixedly connected with a spray gun 10, and high-pressure gas is introduced into the spray gun 10 from the outside through the side end. High-pressure gas is injected to the surface of the mold 2 through the injection gun 10 with the ball valve 17 opened.

Spout two 11 of side fixedly connected with plectrum of axle 9, spout outer lane fixedly connected with stopper 12 of axle 9, stopper 12 activity joint is in the inside of arc groove 14, and the radian of arc groove 14 is not more than sixty degrees. The stop 12 and the arc groove 14 cooperate to limit the maximum rotational angle of the spray gun 10.

The outer ring of the spraying shaft 9 is movably connected with a second ratchet wheel 13, the outer ring of the second ratchet wheel 13 is provided with an arc groove 14, the outer ring of the second ratchet wheel 13 is fixedly connected with a spring shaft 15, the outer ring of the spring shaft 15 is fixedly connected with a gear 16, the outer ring of the spraying shaft 9 is fixedly connected with a ball valve 17, the ball valve 17 is movably connected in the pipe of the spraying gun 10 under the normal condition, the ball valve 17 blocks the gas circulation in the spraying gun 10, and when the ball valve 17 rotates, high-pressure gas is sprayed out from the spraying gun 10 through the ball valve 17.

A bellows 18 is fixedly connected to a side end of the spray gun 10. Bellows 18 may dampen changes in the length and angle of the gas tube conducting gas as lance 10 is rotated.

The working principle is as follows: the whole equipment is powered by an external motor, and the whole equipment structure is driven to operate by the meshing disc 4. When the meshing disc 4 rotates in a single direction, the screw rods 7 clamped can reciprocate in the vertical direction, the spray gun 10 is symmetrical in structure, the two screw rods 7 can be limited mutually, and the casting table 1 can drive the mold 2 to ascend or descend. In addition, the rotation directions of the two meshing discs 4 are synchronous and opposite, so that the casting table 1 and other structures are driven to move synchronously.

In the process that the connecting block 3 is driven to ascend by the meshing disc 4, because the latch directions of the first poking sheet 5 and the first ratchet 6 are opposite, the meshing disc 4 can drive the connecting block 3 to rotate synchronously, meanwhile, the threaded ring 8 drives the gear 16 to rotate, the gear 16 drives the spray gun 10 to change the spray angle of the spray nozzle, the spray angle is changed from a far point to a near point of the mold 2, and meanwhile, the spring shaft 15 is compressed. The gear 16 synchronously drives the spray shaft 9 to rotate, the ball valve 17 is driven to rotate through the second shifting piece 11 and the second ratchet 13, the gas of the spray gun 10 is conducted, and the high-pressure gas is sprayed out.

Until the top department that the wire rod 7 recess was seted up is moved to nibbling dish 4, nibbling dish 4 drives other structures and begins the downstream, because the characteristic of two-way recess, nibbling dish 4 direction of rotation changes this moment, will no longer drive two ratchet 13 rotations when driving two 11 rotations of plectrum, reverse drive gear 16 downwards at threaded ring 8, when resetting spray gun 10 angle, take place the conflict when avoiding rotating between the structure, plectrum one 5 and ratchet 6 are in the same place, avoid connecting block 3 antiport to influence nibbling dish 4. Furthermore, due to the disengagement between the threaded ring 8 and the gear 16, the spring shaft 15 returns and simultaneously brings the ball valve 17 back to its original angle, thus blocking the lance 10. Thus, the sand and ash removing process of the surface of the mould 2 is completed.

In the practical structure, the upper limit position of the groove of the screw rod 7 needs to be reasonably adjusted so as to avoid position conflict of the structures of the rest spray guns 10 of the connecting block 3 in the moving process. In addition, the invention only relates to the sand removing step of the sand casting, and the processes of pressing, pushing, transporting and the like of the mould 2 can be completed in the process of making vertical movement of the casting table 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an utilize mechanical system's casting molding dust cleaning sand removal structure, includes and casts platform (1), its characterized in that: a mold (2) is placed on the upper surface of the casting table (1), a connecting block (3) is rotatably connected to the upper surface of the side end of the casting table (1), a meshing disc (4) is movably clamped on the surface of the inner ring at the bottom end of the connecting block (3), a first shifting sheet (5) is fixedly connected to the surface of the inner ring of the meshing disc (4), a first ratchet wheel (6) is movably connected to the inner ring of the meshing disc (4), a lead screw (7) is movably clamped on the inner ring of the first ratchet wheel (6), a threaded ring (8) is fixedly connected to the surface of the inner ring at the upper end of the connecting block (3), a spraying shaft (9) is rotatably connected to the upper end of the lead screw (7), a spraying gun (10) is fixedly connected to the outer end of the spraying shaft (9), a second shifting sheet (11) is fixedly connected to the side end of the spraying shaft (9), a limiting block (12) is fixedly connected to the outer ring of the spraying shaft (9), a second ratchet wheel (13) is movably connected to the outer ring of the spraying shaft (9), an arc groove (14) is formed in the outer ring of the second ratchet wheel (13), a spring shaft (15) is fixedly connected to the outer ring of the second ratchet wheel (13), a gear (16) is fixedly connected to the outer ring of the spring shaft (15), a ball valve (17) is fixedly connected to the outer ring of the spray shaft (9), and a corrugated pipe (18) is fixedly connected to the side end of the spray gun (10).

2. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the inner ring surface of the connecting block (3) and the outer ring surface of the meshing disc (4) are provided with threads, and the two structures are meshed and connected through the threads.

3. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the first shifting piece (5) is fixedly connected to the surface of the inner ring of the meshing disc (4) through springs and is three, the first shifting piece and the third shifting piece are uniformly distributed by taking the axis of the meshing disc (4) as a reference, and the second shifting piece (11) is the same in principle.

4. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the meshing disc (4) is mutually clamped with a groove formed in the surface of the outer ring of the screw rod (7) through a ball movably connected with the surface of the inner ring.

5. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the groove formed in the surface of the screw rod (7) is a bidirectional groove.

6. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the spray gun (10) is filled with high-pressure gas from the outside from the side end.

7. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the limiting block (12) is movably clamped inside the arc groove (14), and the radian of the arc groove (14) is not more than sixty degrees.

8. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the connecting blocks (3) and the screw rods (7) are arranged in a structure directly connected with the connecting blocks and the screw rods, and the connecting blocks and the screw rods are divided into two groups, and the two groups are respectively and symmetrically distributed on two sides of the casting table (1) by taking the casting table (1) as a reference.

9. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the ball valve (17) is movably connected in the pipe of the spray gun (10).

10. The cast molding dust and sand removing structure by using a mechanical method according to claim 1, wherein: the inner ring of the threaded ring (8) is meshed with the gear (16).