CN110899615A

CN110899615A - Molding sand breaker for casting

Info

Publication number: CN110899615A
Application number: CN201911232754.9A
Authority: CN
Inventors: 李小强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-03-24

Abstract

The invention relates to the technical field of auxiliary devices for casting, and discloses a molding sand crushing device for casting, which comprises a shell, wherein a first fixed block is arranged in the shell, a first screen is fixedly connected between the first fixed blocks, the middle part of the first screen is connected with a spring, a second fixed block is arranged below the first fixed block, a movable block is fixedly connected onto the second fixed block, a second screen is arranged between the movable blocks, the middle part of the second screen is fixedly connected with a lower round block, the lower side of the lower round block is fixedly connected with a connecting rod, the lower end of the connecting rod is provided with a roller, the lower side of the connecting rod is provided with a cam, and a magnetic plate is arranged below the cam. No sand sticking, and can remove iron particles contained in the molding sand.

Description

Molding sand breaker for casting

Technical Field

The invention relates to the technical field of auxiliary devices for casting, in particular to a molding sand crushing device for casting.

Background

Casting is a method in which liquid metal is cast into a casting cavity that conforms to the shape of a part, and after it is cooled and solidified, a part or a blank is obtained. The casting material is mostly metal (such as copper, iron, aluminum, tin, lead, etc.) which is originally solid but is heated to liquid, and the material of the casting mold can be sand, metal or even ceramic.

In the foundry work production, the molding sand after pouring is often induration together, need carry out the breakage and just can carry out next time and utilize, the breaker that has been used for the molding sand mostly adopts squeeze roll to the type sand group to carry out breakage, and this kind of mode can make because squeeze roll's extrusion and bond together again by broken molding sand under squeeze roll's effect, or make the molding sand bond on squeeze roll, and the molding sand wherein still can leave and have a certain amount of metal particles when pouring, and current device can not get rid of it well.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a molding sand crushing device for casting, which has the advantages of more reliable crushing of molding sand, no sand sticking and capability of removing iron particles in the molding sand, and solves the problems that the molding sand is not reliably crushed, the molding sand is stuck and the iron particles in the molding sand cannot be removed in the conventional device.

(II) technical scheme

In order to realize the purposes that the molding sand is more reliable to crush and does not stick to the sand, and iron particles in the molding sand can be removed, the invention provides the following technical scheme: a molding sand crushing device for casting comprises a shell, wherein the left and right walls of the upper part of the shell are fixedly connected with first fixed blocks, a first screen mesh is fixedly connected between two groups of first fixed blocks, the middle part of the first screen mesh is fixedly connected with an upper round block, a spring is fixedly connected between the upper round block and the top of the shell, a second fixed block is fixedly connected below the first fixed blocks in the shell, movable blocks are fixedly connected on the second fixed block, a second screen mesh is fixedly connected between the two groups of movable blocks, the middle part of the second screen mesh is fixedly connected with a lower round block, the lower side of the lower round block is fixedly connected with a connecting rod, the lower end of the connecting rod is provided with a roller, a cam is arranged below the connecting rod and is fixedly arranged in the middle part of a central shaft, friction balls are arranged at the left and right ends of the central shaft, a magnetic plate is arranged below the friction balls and is arranged at the upper end of a rotating, the lower inclined plane of the shell is provided with a convex block, the lower end of the shell is provided with a discharge hole, a collecting box is arranged below the discharge hole, and the lower part of the shell is fixedly connected with a support.

Preferably, the rotating shaft is driven by a motor, and automatic operation of the device can be realized.

Preferably, the upper parts of the upper round block and the lower round block are provided with inclined planes, so that the molding sand is prevented from being retained above the upper round block or the lower round block in the shaking process.

Preferably, the movable block is connected with the second fixed block through ribs and grooves, and the vertical movement of the movable block is facilitated.

Preferably, the cross section of the bump is triangular, so that the molding sand is further crushed.

Preferably, the upper part of the cross section of the connecting rib is an inclined plane, so that the broken molding sand can be prevented from falling and being retained on the connecting rib.

(III) advantageous effects

Compared with the prior art, the invention provides a molding sand crushing device for casting, which has the following beneficial effects:

1. this molding sand breaker for casting through being provided with first screen cloth and second screen cloth, and at the below fixedly connected with connecting rod of second screen cloth, the below of connecting rod is provided with the cam, can make the cam drive connecting rod upward movement when rotating, again because the second screen cloth passes through movable block and second fixed block swing joint, so connecting rod upward movement can drive second screen cloth upward movement, and then makes the molding sand between first screen cloth and the second screen cloth extrude the breakage by two sets of screen cloths.

2. This molding sand breaker for casting is provided with the disk through the middle part at first screen cloth, and fixedly connected with spring between the top of last disk and casing, can make when the second screen cloth moves down, the spring can make first screen cloth have the shake of certain degree, and can not make the molding sand glue first screen cloth, and broken molding sand all can fall down in the sieve mesh of second screen cloth.

2. This molding sand breaker for casting can make the top molding sand wherein iron granule when dropping through being provided with by the continuous rotatory magnetic sheet of motor drive can be held and can not fall to the collecting box by the magnetic sheet, and the molding sand that has broken then can be collected in the collecting box by the discharge gate whereabouts under the rotatory centrifugal force effect of magnetic sheet. The bump is arranged on the inclined plane of the lower part of the shell, so that the molding sand crushed by the screen can further crush by impacting the bump under the action of self gravity when falling.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A in accordance with the present invention;

fig. 3 is a partial enlarged view of fig. 1 at B in the present invention.

In the figure: 1-shell, 2-first fixed block, 3-first screen mesh, 4-upper round block, 5-spring, 6-first fixed block, 7-second screen mesh, 8-movable block, 9-lower round block, 10-connecting rod, 11-roller, 12-cam, 13-middle shaft, 14-friction ball, 15-magnetic plate, 16-rotating shaft, 17-convex block, 18-discharge hole, 19-collecting box, 20-bracket, 21-bearing plate and 22-connecting rib.

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. 1-3, a molding sand crushing device for casting comprises a housing 1, wherein the left and right walls of the upper part of the housing 1 are fixedly connected with first fixed blocks 2, a first screen 3 is fixedly connected between two groups of first fixed blocks 2, the middle part of the first screen 3 is fixedly connected with an upper round block 4, a spring 5 is fixedly connected between the upper round block 4 and the top part of the housing 1, a second fixed block 6 is fixedly connected to the lower part of the first fixed block 2 inside the housing 1, a movable block 8 is fixedly connected to the second fixed block 6, the movable block 8 is connected with the second fixed block 6 through ribs and grooves, which is beneficial to the vertical movement of the movable block 8, a second screen 7 is fixedly connected between the two groups of movable blocks 8, and the middle part of the second screen 7 is fixedly connected with a lower round block 9, wherein the upper parts of the upper round block 4 and the lower round block 9 are provided with inclined planes, which can prevent molding sand from being retained above the upper round block 4 or the lower round block 9, a connecting rod 10 is fixedly connected to the lower side of the lower round block 9, a roller 11 is arranged at the lower end of the connecting rod 10, a cam 12 is arranged below the connecting rod 10, the cam 12 is fixedly arranged in the middle of a middle shaft 13, friction balls 14 are arranged at the left end and the right end of the middle shaft 13, a magnetic plate 15 is arranged below the friction balls 14, the magnetic plate 15 is arranged at the upper end of a rotating shaft 16, the rotating shaft 16 is driven by a motor below, and automatic operation of the device can be realized, wherein the rotation of the magnetic plate 15 drives the friction balls 14 to rotate under the action of friction force, so as to drive the middle shaft 13 to rotate, the cam 12 on the middle shaft 13 can rotate, an object bearing plate 21 is fixedly connected to the lower part of the shell 1 through a connecting rib 22 and used for placing and installing the motor, wherein an inclined plane is arranged above the cross section of the connecting rib 22, so as to prevent crushed molding sand from, the cross section of the bump 17 is triangular, so that the molding sand crushed by the screen can impact the bump 17 under the action of self gravity to further crush the molding sand when falling, a discharge port 18 is arranged at the lower end of the shell 1, a collection box 19 is arranged below the discharge port 18, and a support 20 is fixedly connected to the lower part of the shell 1.

The working principle is as follows: when the molding sand of caking is broken in needs, can put the molding sand of caking on second screen cloth 7, because of the below fixedly connected with connecting rod 10 of second screen cloth 7, the below of connecting rod 10 is provided with cam 12, can make cam 12 drive connecting rod 10 upward movement when rotating, again because second screen cloth 7 passes through

movable block

8 and 6 swing joint of second fixed block, so connecting rod 10 upward movement can drive second screen cloth 7 upward movement, and then make the molding sand between first screen cloth 3 and the second screen cloth 7 by two sets of screen cloth extrusion breakage. Through be provided with circle piece 4 in the middle part at first screen cloth 3, and fixedly connected with spring 5 between the top of last circle piece 4 and casing 1, can make when second screen cloth 7 moves down, spring 5 can make first screen cloth 3 have the shake of certain degree, and can not make the molding sand glue first screen cloth 3, and broken molding sand all can fall down in the sieve mesh of second screen cloth 7. By providing the magnetic plate 15 which is driven by the motor to rotate continuously, the iron particles in the sand falling from above are sucked by the magnetic plate 15 and do not fall into the collection box 19, and the broken sand falls from the discharge port 18 into the collection box 19 under the centrifugal force of the rotation of the magnetic plate 15 and is collected.

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. A foundry sand breaker, includes casing (1), its characterized in that: the left wall and the right wall of the upper part of the shell (1) are fixedly connected with first fixed blocks (2), a first screen (3) is fixedly connected between the two groups of first fixed blocks (2), the middle part of the first screen (3) is fixedly connected with an upper round block (4), a spring (5) is fixedly connected between the upper round block (4) and the top of the shell (1), a second fixed block (6) is fixedly connected inside the shell (1) and positioned below the first fixed blocks (2), a movable block (8) is fixedly connected on the second fixed block (6), a second screen (7) is fixedly connected between the two groups of movable blocks (8), a lower round block (9) is fixedly connected in the middle part of the second screen (7), a connecting rod (10) is fixedly connected to the lower side of the lower round block (9), idler wheels (11) are arranged at the lower end of the connecting rod (10), and a cam (12) is arranged below the connecting rod (, the cam (12) is fixedly arranged in the middle of the middle shaft (13), friction balls (14) are arranged at the left end and the right end of the middle shaft (13), magnetic plates (15) are arranged below the friction balls (14), the magnetic plates (15) are arranged at the upper end of the rotating shaft (16), an object bearing plate (21) is fixedly connected to the lower portion of the shell (1) through connecting ribs (22), a convex block (17) is arranged on the inclined plane below the shell (1), a discharge hole (18) is formed in the lower end of the shell (1), a collecting box (19) is arranged below the discharge hole (18), and a support (20) is fixedly connected to the lower portion of the shell (1).

2. The molding sand crushing device for casting as set forth in claim 1, wherein: the rotating shaft (16) is driven by a motor.

3. The molding sand crushing device for casting as set forth in claim 1, wherein: the upper parts of the upper round block (4) and the lower round block (9) are provided with inclined planes.

4. The molding sand crushing device for casting as set forth in claim 1, wherein: the movable block (8) is connected with the second fixed block (6) through ribs and grooves.

5. The molding sand crushing device for casting as set forth in claim 1, wherein: the cross section of the lug (17) is triangular.

6. The molding sand crushing device for casting as set forth in claim 1, wherein: the upper part of the section of the connecting rib (22) is an inclined plane.