CN220196281U - Structure for vibrating sand box - Google Patents

Abstract

The utility model particularly relates to a structure for vibrating a sand box, which comprises a frame, a workbench arranged on the frame, at least three support rods arranged on the workbench in an upright manner and a high-frequency vibrator capable of driving the workbench to vibrate; the support rod comprises a mounting section and an action section, the workbench is provided with a mounting groove for the mounting section of the support rod to extend into and mount, each support rod is correspondingly mounted in one mounting groove, the mounting section is mounted in the mounting groove through a self-aligning bearing, and a vibration gap is formed between the inner wall of the mounting groove and the support rod; the action sections of at least three support rods are used for abutting and clamping the sand box, and the workbench is used for bearing the sand box. The shaking of the workbench drives the supporting rod to vibrate integrally and drives the sand box to vibrate together, so that the effect of improving the compactness of molding sand in the sand box through micro-vibration as in the prior art is realized, and meanwhile, the generation of severe noise is avoided.

Description

Structure for vibrating sand box

Technical Field

The utility model relates to the technical field of molding machines, in particular to a structure for vibrating a sand box.

Background

Casting is a basic process of modern mechanical manufacturing industry, and casting mechanical equipment is a machine for smelting metal into liquid meeting certain requirements and pouring the liquid into a casting model, and obtaining castings with preset shapes, sizes and performances after cooling solidification and cleaning treatment, and common casting equipment is a sand mixer, a shakeout machine, a molding machine and the like. The molding machine is used for manufacturing casting equipment of sand molds, sand is compacted to form molds, metal liquid can be injected into the molds for cooling molding, the equipment is mainly used for filling sand, loose molding sand is filled into a sand box, the molding sand is compacted, the loose molding sand in the sand box is compacted through different methods such as jolt ramming, compaction and the like, so that the sand molds have necessary strength, and then the molds are drawn. The conventional micro-vibration compaction molding machine can make the template, the sand box and the molding sand vibrate at high frequency and small amplitude when the molding sand is compacted, and when loose molding sand is filled in the sand box, a plurality of gaps are reserved among the sand grains, at the moment, the template directly vibrates, and energy is transmitted to the sand grains, so that the sand grains can find new balance positions in continuous movement, the gaps are filled, and the compactness of the molding sand is improved.

The utility model discloses a molding machine microseism mechanism for mould production as disclosed in the patent with publication number CN113333688A, which comprises a compaction cylinder, wherein a pressing plug is movably sleeved in an inner cavity of the compaction cylinder, a pressure spring is fixedly arranged at the bottom of the inner cavity of the pressing plug, a jarring cylinder is fixedly arranged on the upper surface of the pressure spring, and a jarring plug is movably sleeved in the middle of the jarring cylinder. This molding machine microseism mechanism for mould production communicates the middle chamber of piston and suction port through the row pressure hole, the ratchet She Shun clockwise orientation of ratchet for the mould frame moves down the in-process of moving down under pressure spring or exhaust hole gassing effect, and the transmission tooth rotates on with the rack meshing and transmits the ratchet, and the ratchet can drive eccentric wheel rotation work, with the air suction in the middle chamber of piston and suction port, and when the mould frame moves up the in-process, the ratchet is not transmitted, guarantees that the piston moves down the suction effect, can not be with the suction of row pressure hole air, guarantees the suction effect of piston to the suction port, and then guarantees the compactness of suction port top sand. However, vibration of such a micro-vibration compaction type molding machine is achieved by impact, and is very noisy, affecting the workshop environment, and may cause hearing impairment for workers who do so for a long period of time.

Disclosure of Invention

The technical scheme provided by the utility model is that the structure for vibrating the sand box comprises a frame, a workbench arranged on the frame, at least three support rods arranged on the workbench in an upright mode and a high-frequency vibrator capable of driving the workbench to vibrate; the support rods comprise mounting sections and action sections, the workbench is provided with mounting grooves for the mounting sections of the support rods to extend into and mount, each support rod is correspondingly mounted in one mounting groove, the mounting sections are mounted in the mounting grooves through aligning bearings, and vibration gaps are formed between the inner walls of the mounting grooves and the support rods; the action sections of at least three support rods are used for abutting and clamping the sand box, and the workbench is used for bearing the sand box.

Preferably, a buffer elastic member is disposed in the vibration gap, and connects the support rod and the inner wall of the mounting groove.

Preferably, at least three buffer elastic members are arranged around the support rod array in the vibration gap.

Preferably, the support rod is a cylindrical rod piece, the mounting groove is a cylindrical groove, and the support rod is coaxial with the mounting groove.

Preferably, a circle of flexible buffer cushion is arranged at the edge of the outlet of the mounting groove.

Preferably, the workbench is movably arranged on the frame, the high-frequency vibrator is arranged on the left side of the workbench and acts on the workbench, the right side of the workbench is provided with a limiting plate fixed on the frame, a horizontal resetting piece is connected between the limiting plate and the workbench, and the horizontal resetting piece has a resetting trend after being extruded.

Preferably, the workbench is provided with four supporting rods which enclose a square space, and the supporting rods are used for enclosing the sand box in the square space.

Preferably, a linkage plate is connected between any two adjacent support rods in the circumferential direction of the square space, the linkage plate is in rotary connection with the support rods, and four linkage plates enclose the square space in the middle.

Preferably, the utility model further comprises four air-flushing assemblies arranged at the periphery of the four linkage plates, each linkage plate faces towards one air-flushing assembly, the air-flushing assemblies can intermittently spray compressed air towards the corresponding linkage plate at high frequency, and the linkage plate can vibrate when the compressed air impacts the linkage plate.

As the preferable mode of the utility model, the air-flushing component comprises a spray head, a driver for driving the spray head to rotate and a compressor for providing compressed gas for the spray head, wherein the rotating shaft of the spray head is parallel to the linkage plate, and the spray head is provided with a plurality of nozzles which are arrayed around the circumference of the rotating shaft; the driver can drive the shower nozzle rotates in succession, the compressor can provide compressed air for the shower nozzle in succession, in the shower nozzle pivoted in-process the nozzle is continuous the wheel flow orientation the linkage board.

The beneficial effects are that:

the shaking of the workbench drives the supporting rod to vibrate integrally and drives the sand box to vibrate together, so that the effect of improving the compactness of molding sand in the sand box through micro-vibration as in the prior art is realized, and meanwhile, the generation of severe noise is avoided.

Drawings

FIG. 1 is a schematic perspective view of a structure for vibrating a flask;

FIG. 2 is a front view of the structure for vibrating the flask;

FIG. 3 is a schematic view of the support bar installed in the installation groove;

FIG. 4 is a schematic view of the linkage plate of FIG. 1;

fig. 5 is a schematic structural view of the spray head.

Detailed Description

The following specific examples are intended to be illustrative of the utility model and are not intended to be limiting, as modifications of the utility model will be apparent to those skilled in the art upon reading the specification without inventive contribution thereto, and are intended to be protected by the patent law within the scope of the appended claims.

The utility model relates to a structure for vibrating a sand box, which comprises a frame 1, a workbench 2 arranged on the frame 1, at least three support rods 3 arranged on the workbench 2 in an upright manner, and a high-frequency vibrator 4 capable of driving the workbench 2 to vibrate; the support rods 3 comprise mounting sections and acting sections, the workbench 2 is provided with mounting grooves 21 for the mounting sections of the support rods 3 to extend into and mount, each support rod 3 is correspondingly mounted in one mounting groove 21, the mounting sections are mounted in the mounting grooves 21 through aligning bearings, and a vibration gap is formed between the inner wall of each mounting groove 21 and each support rod 3; at least three active sections of the support bar 3 are used for abutting and clamping the sand box, and the workbench 2 is used for bearing the sand box. The mounting section is the part of the support rod 3 located in the mounting groove 21, and the acting section is the part of the support rod 3 located outside the mounting groove 21. When the sand box is used, the sand box main body is positioned in a space surrounded by at least three support rods 3, the side edge of the sand box is provided with an arc groove which is abutted against the outer wall of the support rods 3, all the support rods 3 are used for hooping the sand box together, and the movement of the support rods 3 can drive the sand box to move together. When the structure for vibrating the sand box operates, the high-frequency vibrator 4 is started to drive the workbench 2 to shake, no violent impact exists between the workbench 2 and the workbench, slight shake with smaller amplitude is generated by the workbench 2, shake of the workbench 2 is transmitted to the support rod 3, and the support rod 3 is connected with the mounting groove 21 through the aligning bearing, so that the support rod 3 is influenced by shake of the workbench 2 and shakes by taking the aligning bearing as a fulcrum, and although the shake amplitude of the workbench 2 is smaller, the upright support rod 3 is in an unstable state and can amplify the movement amplitude in a form of expression instead of the shake of the support rod 3; the shaking area is a shaking gap limited by the mounting groove 21, but the support rod 3 is long, and even if the shaking angle range is small, the movement is large in amplitude from the whole support rod 3; the support rod 3 drives the sand box to shake together, the frequency of shaking of the workbench 2 is high, the frequency of shaking of the support rod 3 is also high, the whole vibration of the support rod 3 is realized, and the sand box can be driven to vibrate together, so that the effect of improving the compactness of molding sand in the sand box through micro vibration like in the prior art is realized, and meanwhile, the generation of severe noise is avoided.

The mounting section of the support rod 3 may collide with the mounting groove 21 when shaking in the mounting groove 21, and there may be slight noise generation, and the support rod 3 may be easily worn, so in this embodiment, it is preferable that a buffer elastic member 22 is provided in the vibration gap, and the buffer elastic member 22 connects the support rod 3 and the inner wall of the mounting groove 21. The buffer elastic piece 22 plays a role in buffering on one hand, reduces noise and reduces abrasion of the support rod 3; on the other hand, after the supporting rod 3 shakes towards a square shape to press the buffer elastic piece 22, the tendency of the buffer elastic piece 22 to reset can push the supporting rod 3 towards the other direction, so that the shaking frequency of the supporting rod 3 is further improved, the whole vibration amplitude of the supporting rod 3 is improved, the vibration amplitude of the higher frequency is transmitted to the sand box, and the micro vibration compacting effect is improved; and the existence of the buffer elastic piece 22 enables the support rod 3 to be in a stable and exact initial position, so that the support rod 3 can be aligned and abutted with all support rods 3 when the sand box is placed, and the installation efficiency of the sand box is improved. Further, it is preferable that the buffering elastic members 22 are arranged around the supporting rods 3 in an array manner in the vibration gap, and the supporting rods 3 shake in any direction around to obtain relatively balanced buffering and supporting, so that the vibration amplitude of the structure vibrating the sand box is always relatively uniform when the structure vibrates the sand box. Further, preferably, the supporting rod 3 is a cylindrical rod, the mounting groove 21 is a cylindrical groove, the supporting rod 3 is coaxial with the mounting groove 21, the supporting rod 3 has a consistent stroke which can shake along any direction around, and the balance of the amplitude in the running process is further improved. Although the buffer elastic member 22 plays a role of buffering, the supporting rod 3 collides with the edge of the outlet of the mounting groove 21, so that a circle of flexible buffer pad, such as rubber material, is arranged on the edge of the outlet of the mounting groove 21 in the embodiment, and the supporting rod 3 is further protected. The buffer elastic member 22 may be a block member supported by a flexible material, and may be a spring or a block member supported by a flexible material and adapted to the shake of the support rod 3 by plastic deformation of itself.

Further, in this embodiment, the workbench 2 is preferably movably disposed on the frame 1, the high-frequency vibrator 4 is disposed on the left side of the workbench 2 and acts on the workbench 2, a limiting plate 51 fixed on the frame 1 is disposed on the right side of the workbench 2, a horizontal reset member 52 is connected between the limiting plate 51 and the workbench 2, and the horizontal reset member 52 has a reset tendency after being pressed; the workbench 2 is positioned between the high-frequency vibrator 4 and the horizontal reset piece 52, the workbench 2 is mainly driven to shake after the high-frequency vibrator 4 is started, the workbench 2 is enabled to move slightly, the high-frequency vibrator 4 is matched with the horizontal reset piece 52, the workbench 2 is enabled to move reciprocally in a high-frequency and slight way, and the amplitude of the workbench 2 is improved; the sand box is placed on the workbench 2, so that the sand box is driven to vibrate by the support rod 3 and the workbench 2 at the same time, and a better micro-vibration compacting effect can be obtained. The horizontal return member 52 is preferably a spring.

Usually the sand box is square, so be provided with four on the workstation 2 enclose into square space bracing piece 3, bracing piece 3 is arranged in enclosing the sand box in square space, four bracing pieces 3 act on square sand box, drive the sand box whole and vibrate the effect better, and the holistic vibration of sand box is also more even, and the even compactness of micro-vibration compaction is better. Further improvement, preferably be in on the square space arbitrary two adjacent in the circumference be connected with linkage board 6 between the bracing piece 3, linkage board 6 with be rotated between the bracing piece 3 and be connected, four linkage board 6 will square space encloses in the middle, just so make rocking of four bracing pieces 3 have better synchronism, the vibration effect is superimposed each other, improves the vibration effect.

Further, this embodiment preferably further includes four air-flushing assemblies disposed at the peripheries of the four linkage plates 6, each linkage plate 6 faces one air-flushing assembly, the air-flushing assemblies can intermittently spray compressed air towards the corresponding linkage plate 6 at a high frequency, when the compressed air impacts the linkage plate 6, the linkage plate 6 can vibrate, vibration of the linkage plate 6 can be transmitted to the support rod 3, total amplitude is improved, and a better vibration effect is obtained for the sand box. Specifically, the air-flushing assembly includes a nozzle 7, a driver for driving the nozzle 7 to rotate, and a compressor for providing compressed air for the nozzle 7, wherein a rotation axis 71 of the nozzle 7 is parallel to the linkage plate 6, and the nozzle 7 has a plurality of nozzles 72 arrayed around the rotation axis 71 in a circumferential array; the driver can drive the shower nozzle 7 rotates in succession, the compressor can provide compressed air for shower nozzle 7 in succession, in shower nozzle 7 pivoted in-process nozzle 72 continuously the wheel flow orientation linkage board 6 realizes that compressed gas high frequency intermittent type nature strikes linkage board 6, makes linkage board 6 produce the vibration.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The structure for vibrating the sand box is characterized by comprising a frame (1), a workbench (2) arranged on the frame (1), at least three support rods (3) arranged on the workbench (2) in an upright mode, and a high-frequency vibrator (4) capable of driving the workbench (2) to vibrate; the support rods (3) comprise mounting sections and action sections, the workbench (2) is provided with mounting grooves (21) for the mounting sections of the support rods (3) to extend into and be mounted, each support rod (3) is correspondingly mounted in one mounting groove (21), the mounting sections are mounted in the mounting grooves (21) through aligning bearings, and vibration gaps are formed between the inner walls of the mounting grooves (21) and the support rods (3); the action sections of at least three support rods (3) are used for abutting and hooping the sand box, and the workbench (2) is used for bearing the sand box.

2. A structure for vibrating a flask as claimed in claim 1, wherein a buffer elastic member (22) is provided in the vibrating gap, and the buffer elastic member (22) connects the support rod (3) and the inner wall of the mounting groove (21).

3. A structure for vibrating a flask according to claim 2, characterized in that at least three of said buffer elastic members (22) are arranged in said vibrating gap in an array around said support bar (3).

4. A structure for vibrating a flask as claimed in claim 3, wherein the support bar (3) is a cylindrical rod, the mounting groove (21) is a cylindrical groove, and the support bar (3) is coaxial with the mounting groove (21).

5. A structure for vibrating a flask as in claim 4, wherein the edge at the outlet of the slot (21) is provided with a ring of flexible cushioning pads.

6. A structure for vibrating a flask as claimed in any one of claims 2 to 4, wherein said table (2) is movably disposed on said frame (1), said high frequency vibrator (4) is disposed on the left side of said table (2) and acts on said table (2), a limiting plate (51) fixed on said frame (1) is disposed on the right side of said table (2), a horizontal reset member (52) is connected between said limiting plate (51) and said table (2), and said horizontal reset member (52) has a reset tendency after being pressed.

7. A structure for vibrating a flask as claimed in claim 6, wherein four support bars (3) are provided on the table (2) to define a square space, and the support bars (3) are adapted to enclose the flask in the square space.

8. The structure for vibrating a sand box according to claim 7, wherein a linkage plate (6) is connected between any two adjacent support rods (3) in the circumferential direction of the square space, the linkage plate (6) is rotatably connected with the support rods (3), and four linkage plates (6) enclose the square space in the middle.

9. The structure for vibrating a flask as recited in claim 8, further comprising four air-blast assemblies provided at the periphery of four of said linkage plates (6), each of said linkage plates (6) being directed toward one of said air-blast assemblies, said air-blast assemblies being capable of intermittently injecting compressed air toward the corresponding linkage plate (6) at a high frequency, the compressed air being capable of vibrating the linkage plate (6) upon impact with the linkage plate (6).

10. A structure for vibrating a flask as in claim 9, wherein the air-blast assembly comprises a nozzle (7), a driver for driving the nozzle (7) to rotate, and a compressor for supplying compressed air to the nozzle, the rotation axis (71) of the nozzle (7) is parallel to the linkage plate (6), and the nozzle (7) has a plurality of nozzles (72) arranged in a circumferential array around the rotation axis (71); the driver can drive the spray head (7) to rotate continuously, the compressor can continuously provide compressed air for the spray head (7), and the spray nozzle (72) continuously rotates towards the linkage plate (6) in the rotating process of the spray head (7).