CN220049953U

CN220049953U - High-frequency vibration device for lost foam casting

Info

Publication number: CN220049953U
Application number: CN202321605243.9U
Authority: CN
Inventors: 王亮; 崔源元
Original assignee: Shandong Haopu Machinery Manufacturing Co ltd
Current assignee: Shandong Haopu Machinery Manufacturing Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-21
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses a high-frequency vibration device for lost foam casting, which comprises a base, a lower positioning column, a vibration platform, an upper positioning column, a spring, a vibration motor, a frequency converter and a sand box fixing device. The lower locating column is fixed at the edge of the upper surface of the base, the vibrating platform is arranged above the base, the upper locating column is fixed on the lower surface of the vibrating platform, and the upper locating column is opposite to the lower locating column. The upper end and the lower end of the spring are respectively sleeved on the upper positioning column and the lower positioning column, and the upper positioning column is suspended above the lower positioning column under the support of the spring. The vibration motor is connected with the vibration platform, the frequency converter is fixed on the base, and the frequency converter is connected with the vibration motor. The sand box fixing device is fixed at the edge of the upper surface of the vibrating platform. The high-frequency vibration device for lost foam casting is not only beneficial to reducing the transmission of vibration to the base, but also is convenient for the installation and the disassembly of the sand box on the vibration platform, and improves the working efficiency.

Description

High-frequency vibration device for lost foam casting

Technical Field

The utility model relates to the technical field of lost foam casting, in particular to a high-frequency vibration device for lost foam casting.

Background

The lost foam casting principle is an advanced casting technology, which is to manufacture a solid mould with the same structure and size as the part to be cast by using foamed plastic polymer materials, dip-coat refractory coating and dry the solid mould, then to shake and compact the dry quartz sand buried in a sand box, then to pour molten metal liquid into the mould in a negative pressure state, so that the mould is heated and gasified, and then replaced by liquid metal, and the mould is cooled and solidified to form a casting. The vibration treatment of the sand box is an important ring for enabling quartz sand in the sand box to be more compact and reducing defects of castings. However, the vibration generated by some current vibration devices is easily transmitted to the base, so that the base vibrates more. In addition, some vibration devices at present are inconvenient in performing installation of the sand box, especially in the stage of performing debugging, thereby affecting the installation efficiency of the equipment.

Disclosure of Invention

The utility model aims to provide a high-frequency vibration device for lost foam casting, which aims to solve the technical problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a high-frequency vibration device for lost foam casting comprises a base, a lower positioning column, a vibration platform, an upper positioning column, a spring, a vibration motor, a frequency converter and a sand box fixing device; the lower positioning column is fixed at the edge of the upper surface of the base, the vibration platform is arranged above the base, the upper positioning column is fixed on the lower surface of the vibration platform, and the upper positioning column is opposite to the lower positioning column. The upper end and the lower end of the spring are respectively sleeved on the upper positioning column and the lower positioning column, and the upper positioning column is suspended above the lower positioning column under the support of the spring, namely, the upper positioning column and the lower positioning column are not in direct contact. The vibration motor is connected with the vibration platform, the frequency converter is fixed on the base, and the frequency converter is connected with the vibration motor to adjust the vibration frequency of the vibration motor. The sand box fixing device is fixed at the edge of the upper surface of the vibrating platform and used for installing and fixing the sand box.

Further, the sand box fixing device comprises a base plate, a clamping plate and a positioning adjusting piece; the base plate is fixed on the upper surface of the vibration platform, the clamping plate is positioned on the upper surface of the base plate, the outer end of the clamping plate is rotationally connected with the outer end of the base plate, so that the clamping plate rotates clockwise or anticlockwise, and the inner end of the clamping plate extends to the inner side, the outer side and the inner side of the base plate; the upper surface of the clamping plate is provided with a penetrating hole, the lower end of the positioning adjusting piece penetrates through the hole and then is detachably connected with the base plate, and the clamping plate is fastened on the upper surface of the base plate.

Further, the lower end of the positioning adjusting piece is in threaded connection with the threaded hole on the upper surface of the base plate.

Further, the threaded holes are near the inside of the base plate so that the clamping plates better form a fixation for the sand box.

Further, the trompil is rectangular form structure, the location regulating part includes screw rod and stopper. The long limiting block is horizontally fixed at the top end of the screw rod, the length and the width of the limiting block are respectively smaller than those of the opening, and the length of the limiting block is larger than that of the opening; therefore, when the limiting block rotates to the long side and the wide side of the limiting block are parallel to the long side and the wide side of the opening respectively, the clamping plate can be turned upwards, and the limiting block passes through the opening.

Further, a handle is fixed on the upper surface of the limiting block so as to rotate the limiting block more quickly.

Further, the outer end side wall of the clamping plate is provided with a pin hole, and the pin hole is rotationally connected to the connecting lug on the upper surface of the outer end of the base plate through a connecting shaft.

Further, the upper surface of the vibration table is provided with a groove so that the bottom surface of the flask is caught in the groove.

Further, a limiting strip is fixed on the outer wall of the lower part of the sand box, and the inner end of the clamping plate can be pressed on the limiting strip.

Compared with the prior art, the utility model has the following beneficial effects:

1. the high-frequency vibration device for lost foam casting adopts the lower positioning column fixed on the base, the upper positioning column fixed on the lower surface of the vibration platform and the springs with two ends sleeved on the lower positioning column and the upper positioning column respectively, and the upper positioning column is suspended and supported above the lower positioning column, namely, the upper end of the lower positioning column is disconnected from the lower end of the upper positioning column, and the upper positioning column and the lower positioning column are not in direct contact with each other, so that when the vibration platform vibrates under the driving of the vibration motor, the vibration transmitted to the base can be effectively reduced by the aid of the springs, and the overall stability of the high-frequency vibration device for lost foam casting is improved.

2. According to the sand box fixing device, the outer end of the clamping plate is rotationally connected to the base plate, after the locating adjusting piece is rotated to enable the locating adjusting piece to coincide with the opening, the clamping plate is turned inwards, the limiting block of the locating adjusting piece passes through the opening, at the moment, the inner end of the clamping plate is pressed on the limiting strip on the outer wall of the sand box, then the locating adjusting piece is rotated to enable the clamping plate to be fastened to the base plate, and the limiting block and the opening are staggered, so that the sand box can be fixed. When the locating adjusting piece is required to be disassembled, the locating adjusting piece is rotated again to be overlapped with the opening, the clamping plate can be turned outwards, the limiting block passes through the opening, and at the moment, the inner end of the clamping plate is removed to fix the limiting strip. The sand box fixing device is convenient for installing and detaching the sand box, and improves the working efficiency.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is a schematic structural view of a substrate according to the present utility model.

FIG. 3 is a schematic view of the structure of the clamping plate according to the present utility model;

fig. 4 is a schematic structural view of the positioning adjusting member according to the present utility model.

In the figure: 1-base, 2-lower reference column, 3-vibration platform, 4-upper reference column, 5-spring, 6-vibrating motor, 7-converter, 8-sand box fixing device, 9-sand box, 10-limit strip, 801-base plate, 802-cardboard, 803-positioning adjustment piece, 804-trompil, 805-screw hole, 803-positioning adjustment piece, 806-screw rod, 807-stopper, 808-handle, 809-pinhole, 810-engaging lug.

Detailed Description

The technical scheme of the utility model is further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the high-frequency vibration device for lost foam casting according to the present embodiment includes a base 1, a lower positioning column 2, a vibration platform 3, an upper positioning column 4, a spring 5, a vibration motor 6, a frequency converter 7, and a sand box fixing device 8. The base 1 is a square block, the lower positioning column 2 and the upper positioning column 4 are both cylinders, the lower positioning column 2 is vertically fixed on the upper surface of the base 1, and four corners of the base 1 are respectively fixed with the lower positioning column 2. The vibration platform 3 is a square plate and is suspended and arranged right above the base 1. The upper positioning columns 4 are vertically fixed on the lower surface of the vibration platform 3, and the upper positioning columns 4 are opposite to the lower positioning columns 2 one by one.

The upper end and the lower end of the spring 5 are respectively sleeved on the upper positioning column 4 and the lower positioning column 2, and the upper end and the lower end of the spring 5 are respectively abutted against the lower surface of the vibration platform 3 and the upper surface of the base 1, so that the upper positioning column 4 is suspended above the lower positioning column 2 under the support of the spring 5, namely, the upper end of the lower positioning column 2 and the lower end of the upper positioning column 4 are disconnected and are not in direct contact with each other, and therefore, when the vibration platform 3 vibrates under the drive of the vibration motor 6, vibration transmitted to the base 1 can be effectively reduced by virtue of the spring 5, and the overall stability of the high-frequency vibration device for lost foam casting is improved.

The vibration motor 6 is fixed on the base 1, and the vibration head of the vibration motor 6 is connected with the bottom surface of the vibration platform 3, the frequency converter 7 is fixed on the base 1, and the frequency converter 7 is connected with the vibration motor 6 to adjust the vibration frequency of the vibration motor 6. The flask fixing device 8 is fixed at the upper surface edge of the shake table 3 for mounting and fixing of the flask 9. The vibrating motor 6 drives the vibrating platform 3 to vibrate, then drives the sand box 9 to vibrate, and the quartz sand therein is vibrated and compacted.

In a more specific embodiment, referring to fig. 1 to 4, in the lost foam casting dither device according to the above embodiment, the flask fixing device 8 includes a base plate 801, a clamping plate 802, and a positioning adjusting member 803. Wherein, the base plate 801 is fixed on the upper surface of the vibration platform 3, the clamping plate 802 is positioned on the upper surface of the base plate 801, and the outer side wall of the clamping plate 802 is provided with a pin hole 809 which is rotatably connected on a connecting lug 810 on the upper surface of the outer end of the base plate 801 through a connecting shaft, so that the clamping plate 802 rotates clockwise or anticlockwise. The inner ends of the cards 802 extend to the inner and outer sides of the substrate 801. The upper surface of the card 802 has an aperture 804 therethrough. The opening 804 is an elongated structure, and the positioning adjusting member 803 includes a screw 806 and a stopper 807. The lower end of the screw 806 is threaded through the opening 804 to be coupled with a threaded hole 805 formed in the upper surface of the base plate 801, so as to fasten the clamping plate 802 to the upper surface of the base plate 801. The elongated stopper 807 is horizontally fixed to the top end of the screw 806, and the length and width of the stopper 807 are smaller than the length and width of the opening 804, respectively, but the length of the stopper 807 is larger than the width of the opening 804. Such that when the stopper 807 is rotated to its long and wide sides parallel to the long and wide sides of the opening 804, respectively, the card 802 may be flipped up and the stopper 807 may be passed through the opening 804.

Referring to fig. 1, a limit bar 10 is fixed on the outer wall of the lower portion of the sand box 9, and the inner end of the clamping plate 802 can be pressed against the limit bar 10. When the positioning adjusting piece 803 is rotated to be overlapped with the opening 804, the clamping plate 802 is turned inwards, the limiting block 807 of the positioning adjusting piece 803 passes through the opening 804, at the moment, the inner end of the clamping plate 802 is pressed on the limiting strip 10 on the outer wall of the sand box 9, then the positioning adjusting piece 803 is rotated to fasten the clamping plate 802 on the base plate 801, and the limiting block 807 is dislocated with the opening 804, so that the sand box 9 can be fixed. When the fixing piece 803 is required to be detached, the positioning adjusting piece 803 is rotated again to be overlapped with the opening 804, so that the clamping plate 802 can be turned outwards, the limiting block 807 passes through the opening 804, and at the moment, the inner end of the clamping plate 802 is removed from fixing the limiting strip 10. The sand box fixing device 8 is convenient for installing and detaching the sand box 9, and improves the working efficiency.

In another embodiment, referring to fig. 2, the screw hole 805 of the lost foam casting dither device of the above embodiment is close to the inner edge of the base plate 801, so as to reduce the moment generated by the impact force transferred to the clamping plate 802 by the sand box 9 during vibration, so that the clamping plate 802 is better fixed to the sand box. Correspondingly, the openings 804 on the card 802 corresponding to the threaded holes 805 are also near the inside edge of the card 802.

In another embodiment, a handle 808 is fixed to the upper surface of the stopper 807 of the lost foam casting dither device of the above-described embodiment so as to rotate the stopper 807 more quickly.

In another embodiment, the high-frequency vibration device for lost foam casting of the above example has a groove on the upper surface of the vibration table 3 so that the bottom surface of the sand box 9 is caught in the groove, improving the stability of the sand box 9.

Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.

Claims

1. The utility model provides a lost foam casting is with high-frequency vibration device which characterized in that: the device comprises a base, a lower positioning column, a vibrating platform, an upper positioning column, a spring, a vibrating motor, a frequency converter and a sand box fixing device; the lower positioning column is fixed at the edge of the upper surface of the base, the vibration platform is arranged above the base, the upper positioning column is fixed on the lower surface of the vibration platform, and the upper positioning column is opposite to the lower positioning column; the upper end and the lower end of the spring are respectively sleeved on the upper positioning column and the lower positioning column, and the upper positioning column is suspended above the lower positioning column under the support of the spring; the vibration motor is connected with the vibration platform, the frequency converter is fixed on the base, and the frequency converter is connected with the vibration motor; the sand box fixing device is fixed at the edge of the upper surface of the vibrating platform.

2. The high-frequency vibration device for lost foam casting according to claim 1, wherein: the sand box fixing device comprises a base plate, a clamping plate and a positioning adjusting piece; the base plate is fixed on the upper surface of the vibration platform, the clamping plate is positioned on the upper surface of the base plate, and the outer end of the clamping plate is rotationally connected with the outer end of the base plate; the inner end of the clamping plate extends to the inner side, the outer side and the inner side of the base plate; the upper surface of the clamping plate is provided with a penetrating hole, the lower end of the positioning adjusting piece penetrates through the hole and then is detachably connected with the base plate, and the clamping plate is fastened on the upper surface of the base plate.

3. The high-frequency vibration device for lost foam casting according to claim 2, wherein: the sand box is characterized in that a limiting strip is fixed on the outer wall of the lower portion of the sand box, and the inner end of the clamping plate can be pressed on the limiting strip.

4. The high-frequency vibration device for lost foam casting according to claim 2, wherein: the lower end of the positioning adjusting piece is in threaded connection with the threaded hole on the upper surface of the base plate.

5. The high-frequency vibration device for lost foam casting according to claim 4, wherein: the threaded hole is near the inner side of the base plate.

6. The high-frequency vibration device for lost foam casting according to any one of claims 2 to 5, wherein: the opening is of a strip-shaped structure, and the positioning adjusting piece comprises a screw and a limiting block; the long limiting block is horizontally fixed at the top end of the screw rod, the length and the width of the limiting block are respectively smaller than those of the opening, and the length of the limiting block is larger than that of the opening.

7. The lost foam casting high-frequency vibration device according to claim 6, wherein: the upper surface of the limiting block is fixedly provided with a handle.

8. The high-frequency vibration device for lost foam casting according to any one of claims 2 to 5, wherein: the outer end side wall of the clamping plate is provided with a pin hole, and the pin hole is rotationally connected to a connecting lug on the upper surface of the outer end of the base plate through a connecting shaft.

9. The high-frequency vibration device for lost foam casting according to any one of claims 1 to 5, wherein: the upper surface of the vibration platform is provided with a groove on the bottom surface of the sand box.