CN219425603U - Eliminate casting sand mould machine of sand inclusion defect - Google Patents

Abstract

The utility model discloses a casting sand molding machine for eliminating sand inclusion defects, which comprises a box body, wherein one side of the front end of the box body is fixedly connected with a controller, the front end of the top of the box body is fixedly connected with a supporting die table, a plurality of groups of die core mounting holes are formed in the top end of the supporting die table, and a gap-removing sand inclusion preventing mechanism is arranged at the bottom end of the supporting die table. This eliminate casting sand mould machine of sand inclusion defect is through being provided with casing, motor base, servo motor and eccentric wheel, during the use, at the in-process of pushing down, servo motor on the motor base starts, drives the eccentric wheel and rotates fast and produce the vibration, makes the gap between the casting sand bridge through the vibration, increases the compactness, and the suppression of cooperation top makes the casting sand combine closely, avoids the sand inclusion condition that drops and forms, goes up the casing and plays the effect of transmission vibrations when protecting servo motor, has realized the function that tight sand soil anti-loose drops, and the problem that the device does not possess the function that tight sand soil anti-loose drops is solved.

Description

Eliminate casting sand mould machine of sand inclusion defect

Technical Field

The utility model relates to the technical field of sand molding machines, in particular to a casting sand molding machine capable of eliminating sand inclusion defects.

Background

Sand casting is a casting method for producing castings in sand molds, in which mold cores are placed on mold tables one by one during molding, then mold frames are arranged on the mold cores, casting sand is poured into the mold frames, one layer of sand mold can be obtained through hydraulic compaction and demolding, liquefied metal is injected after two layers of sand mold are closed, and a casting piece can be obtained after cooling.

In the sand pressing process, partial areas of the casting sand are not tightly pressed in the pressing process, falling off easily occurs during mold closing, small sand blocks and sand scattering occur in the cavity, sand inclusion defects are formed in the casting process, and the sand inclusion defect preventing function of compacting sand is not achieved; secondly, in the sand pressing molding process, the mold frame is easy to displace due to extrusion, so that the mold cavity is virtual and large, the final molded product phase is affected, and the mold frame is not convenient to clamp and prevent displacement; in addition, in the sand pressing and molding process, casting sand is scattered on an operation table, a mold frame is easily lifted during subsequent operation, the molding balance is affected, and the like, and the sand pressing and molding machine does not have the function of cleaning residual sand.

Therefore, a novel casting sand molding machine capable of eliminating sand inclusion defects is provided to solve the problems.

Disclosure of Invention

The utility model aims to provide a casting sand molding machine capable of eliminating sand inclusion defects, so as to solve the problem that the prior art does not have the function of compacting sand to prevent loosening and falling.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a eliminate casting sand mould machine of sand inclusion defect, includes the box, one side fixedly connected with controller of box front end, the front end fixedly connected with of box top holds in the palm the mould platform, the inside that holds in the palm the mould platform top is provided with multiunit mold core mounting hole, the rear end fixedly connected with back supporting shell at box top, two sets of cylinders are installed respectively to the both sides at box top, the air pump is installed to the inside bottom of box, the bottom that holds in the palm the mould platform is provided with the clearance that removes prevents the sand inclusion mechanism.

The gap-removing sand inclusion-preventing mechanism comprises a plurality of groups of upper shells, the plurality of groups of upper shells are respectively welded at the bottom of the supporting die table, a motor base is sleeved outside the upper shells, a servo motor is mounted at the bottom end inside the motor base, and an eccentric wheel is arranged at the top of the servo motor.

Preferably, the threads inside the motor base are matched with the threads at the bottom end outside the upper shell.

Preferably, the upper shells are arranged at equal intervals.

Preferably, one side of the air cylinder is fixedly connected with a concave clamp, one side of the concave clamp is glued with a rubber pad, and the air cylinder is symmetrically distributed about the vertical center line of the box body.

Preferably, the internally mounted of back supporting shell front end bottom has the air exit, the inside fixedly connected with dust screen of air exit front end, be provided with the trachea between the rear end of air exit and the top of air pump, the inside of air pump, trachea, air exit is linked together.

Preferably, the top of back support shell fixedly connected with top installation shell, the bottom fixedly connected with pneumatic cylinder of top installation shell.

Preferably, the bottom of the hydraulic cylinder is fixedly connected with an upper pressing plate.

Compared with the prior art, the utility model has the beneficial effects that: the casting sand molding machine for eliminating the sand inclusion defect not only realizes the function of loosening and falling prevention of compact sand, realizes the function of conveniently clamping the mold frame and preventing displacement, but also realizes the function of cleaning residual sand;

(1) Through being provided with upper casing, motor base, servo motor and eccentric wheel, during the use, insert the mold core on the mold core mounting hole, then with the die frame cover in holding in the palm the die platform, pour casting sand into in the die frame, the pneumatic cylinder promotes the top board and pushes down, compact casting sand, in the process of pushing down, servo motor on the motor base starts, drive the eccentric wheel and rotate fast and produce vibration, make the gap between the casting sand bridge through vibration, increase the compactness, the suppression of cooperation top makes casting sand combine closely, avoid falling the sand inclusion condition that forms, the upper casing plays the effect of transmission vibrations when protecting servo motor, realized compact sand anti-loosening dropping's function;

(2) When the die frame is used, after the die frame is sleeved on the die supporting table, the air cylinders at the two sides of the top of the box body are started to push the concave clamps to the die frame side, the two groups of concave clamps clamp the die frame inside to prevent displacement in the pressing process, the rubber pad protects the side edge of the die frame while increasing friction force, damage is prevented, and the function of facilitating clamping of the die frame to prevent displacement is realized;

(3) Through being provided with air pump, trachea, air exit and dust screen, during the use, after pressing sand to become the mould, operating personnel takes out the inside sand mould of mould frame intercommunication, and the air pump starts this moment, continues the pump gas in to the air exit through the trachea, and the atmospheric pressure constantly increases in the air exit, and the air current gushes out along the export of air exit, will hold in the palm the incomplete sand blowing off at mould platform and box top, and the dust screen can prevent that sand from getting into, has realized the function of clearance incomplete sand.

Drawings

FIG. 1 is a schematic view of a front partial cross-sectional structure of the present utility model;

FIG. 2 is a schematic top view of the case of the present utility model;

FIG. 3 is an enlarged partial cross-sectional view of the structure of FIG. 1A according to the present utility model;

fig. 4 is an enlarged schematic view of the front section of the support stand of the present utility model.

In the figure: 1. a case; 2. a controller; 3. a die supporting table; 4. a rear support case; 5. a top mounting shell; 6. a hydraulic cylinder; 7. an upper press plate; 8. a mold core mounting hole; 9. an upper housing; 10. a motor base; 11. a servo motor; 12. an eccentric wheel; 13. a cylinder; 14. a concave clip; 15. a rubber pad; 16. an air pump; 17. an air pipe; 18. an air outlet; 19. a dust-proof net.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-4, a casting sand molding machine for eliminating sand inclusion defect comprises a box body 1, wherein one side of the front end of the box body 1 is fixedly connected with a controller 2, the front end of the top of the box body 1 is fixedly connected with a supporting die table 3, a plurality of groups of die core mounting holes 8 are formed in the top end of the supporting die table 3, the rear end of the top of the box body 1 is fixedly connected with a rear supporting shell 4, the top of the rear supporting shell 4 is fixedly connected with a top mounting shell 5, the bottom of the top mounting shell 5 is fixedly connected with a hydraulic cylinder 6, the bottom of the hydraulic cylinder 6 is fixedly connected with an upper pressing plate 7, and the bottom of the supporting die table 3 is provided with a gap-removing sand inclusion preventing mechanism;

referring to fig. 1-4, a casting sand molding machine for eliminating sand inclusion defect further comprises a gap-removing sand inclusion preventing mechanism, wherein the gap-removing sand inclusion preventing mechanism comprises a plurality of groups of upper shells 9, the upper shells 9 are respectively welded at the bottom of the supporting mold table 3, a motor base 10 is sleeved outside the upper shells 9, a servo motor 11 is installed at the bottom end inside the motor base 10, and an eccentric wheel 12 is arranged at the top of the servo motor 11;

threads in the motor base 10 are matched with threads at the bottom end outside the upper shell 9, and the upper shell 9 is arranged at equal intervals, so that the motor is convenient to disassemble and assemble for maintenance;

specifically, as shown in fig. 1 and fig. 4, in the pressing process, the servo motor 11 on the motor base 10 is started to drive the eccentric wheel 12 to rotate rapidly to generate vibration, gaps between casting sand are closed by the vibration, the compactness is increased, the casting sand is tightly combined by matching with the pressing above, the sand inclusion condition formed by falling is avoided, and the upper shell 9 plays a role in transmitting vibration while protecting the servo motor 11.

Example 2: two groups of air cylinders 13 are respectively arranged on two sides of the top of the box body 1, one side of each air cylinder 13 is fixedly connected with a concave clamp 14, one side of each concave clamp 14 is glued with a rubber pad 15, and the air cylinders 13 are symmetrically distributed about the vertical center line of the box body 1, so that the fixed mould frame is convenient to avoid displacement;

specifically, as shown in fig. 1 and 2, the cylinders 13 on both sides of the top of the case 1 are activated to push the concave clamps 14 toward the mold frame side, and the two sets of concave clamps 14 clamp the mold frame inside to prevent displacement during pressing, and the rubber pads 15 protect the side edges of the mold frame while increasing friction force to prevent damage.

Example 3: the bottom inside the box body 1 is provided with the air pump 16, the inside of the bottom of the front end of the rear supporting shell 4 is provided with the air outlet 18, the inside of the front end of the air outlet 18 is fixedly connected with the dust screen 19, the air pipe 17 is arranged between the rear end of the air outlet 18 and the top of the air pump 16, and the air pump 16, the air pipe 17 and the inside of the air outlet 18 are communicated, so that the residual sand on the table top can be cleaned rapidly;

specifically, as shown in fig. 2 and 3, the air pump 16 is started, the air is continuously pumped into the air outlet 18 through the air pipe 17, the air pressure in the air outlet 18 is continuously increased, the air flow is gushed out along the outlet of the air outlet 18, the residual sand on the top of the supporting die table 3 and the box body 1 is blown down, and the dust screen 19 can prevent sand from entering.

Working principle: when the mold is used, firstly, the mold core is inserted into the mold core mounting hole 8, then the mold frame is sleeved on the mold supporting table 3, casting sand is poured into the mold frame, the hydraulic cylinder 6 pushes the upper pressing plate 7 to press down, the casting sand is compacted, in the pressing down process, the servo motor 11 on the motor base 10 is started to drive the eccentric wheel 12 to rotate rapidly to generate vibration, gaps among the casting sand are closed through the vibration, the compactness is increased, the casting sand is tightly combined by matching with the pressing above, the sand inclusion condition formed by falling is avoided, and the upper shell 9 plays a role in transmitting vibration while protecting the servo motor 11. After the die frame is sleeved on the die supporting table 3, the air cylinders 13 on two sides of the top of the box body 1 are started to push the concave clamps 14 to the die frame side, the die frame is clamped by the two groups of concave clamps 14, displacement in the pressing process is prevented, and the rubber pad 15 protects the side edge of the die frame and prevents damage while increasing friction force. After sand pressing and molding, an operator takes out the sand mold inside the mold frame, at the moment, the air pump 16 is started, air is continuously pumped into the air outlet 18 through the air pipe 17, air pressure in the air outlet 18 is continuously increased, air flows out along the outlet of the air outlet 18, residual sand on the top of the mold supporting table 3 and the box body 1 is blown off, and the dust screen 19 can prevent sand from entering.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides an eliminate casting sand mould machine of sand inclusion defect, includes box (1), its characterized in that: one side of the front end of the box body (1) is fixedly connected with a controller (2), the front end of the top of the box body (1) is fixedly connected with a supporting die table (3), a plurality of groups of die core mounting holes (8) are formed in the top end of the supporting die table (3), the rear end of the top of the box body (1) is fixedly connected with a rear supporting shell (4), two groups of air cylinders (13) are respectively arranged on two sides of the top of the box body (1), an air pump (16) is arranged at the bottom end of the inside of the box body (1), and a gap-removing sand-clamping-preventing mechanism is arranged at the bottom end of the supporting die table (3);

the gap-removing sand inclusion-preventing mechanism comprises a plurality of groups of upper shells (9), the plurality of groups of upper shells (9) are respectively welded at the bottom of the supporting die table (3), a motor base (10) is sleeved outside the upper shells (9), a servo motor (11) is mounted at the bottom end inside the motor base (10), and an eccentric wheel (12) is arranged at the top of the servo motor (11).

2. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 1 wherein: the threads in the motor base (10) are matched with the threads at the bottom end outside the upper shell (9).

3. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 1 wherein: the upper shells (9) are arranged at equal intervals.

4. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 1 wherein: one side of the air cylinder (13) is fixedly connected with a concave clamp (14), one side of the concave clamp (14) is glued with a rubber pad (15), and the air cylinder (13) is symmetrically distributed about the vertical center line of the box body (1).

5. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 1 wherein: the inside of back support shell (4) front end bottom is installed air exit (18), the inside fixedly connected with dust screen (19) of air exit (18) front end, be provided with trachea (17) between the rear end of air exit (18) and the top of air pump (16), the inside of air pump (16), trachea (17), air exit (18) is linked together.

6. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 1 wherein: the top of back supporting shell (4) fixedly connected with top installation shell (5), the bottom fixedly connected with pneumatic cylinder (6) of top installation shell (5).

7. A foundry sand machine for eliminating sand inclusion defects as set forth in claim 6 wherein: the bottom of the hydraulic cylinder (6) is fixedly connected with an upper pressing plate (7).