An expendable pattern vibration sanding device

Abstract

The utility model discloses a lost foam vibration sand filling equipment relates to foundry equipment technical field, and this lost foam vibration sand filling equipment includes: frame, vibration platform includes vibration board, elastic part, positioning mechanism, vertical vibration motor and horizontal vibration motor, and vibration board is connected with the frame through elastic part, and positioning mechanism sets up at the top of vibration board, and vertical vibration motor sets up at the bottom of vibration board and interval arrangement between elastic part, and horizontal vibration motor sets up along the side of vibration board circumferentially, airflow prefill subassembly includes mounting bracket and airflow distribution device, and mounting bracket is erected in the frame, and airflow distribution device sets up on mounting bracket. The utility model adopts the airflow prefill mode from top to bottom cooperation vertical vibration and horizontal vibration's vibration sand filling scheme, and the flowability of the sand is improved, realizes excellent filling effect, and the multiple angle vibration can vibrate the sand of prefill, and the casting quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to a lost foam vibratory sand filling device. Background Technology

[0002] Lost foam casting, also known as vapor foam casting or solid casting, works by embedding a foam or paraffin model in dry sand, vibrating it to compact it, and then pouring in the liquid metal. This causes the model to vaporize, allowing the liquid metal to fill the mold's space. Once cooled, the liquid metal forms the final casting. Vibratory sand filling is a crucial step, ensuring the dry sand flows under vibration and fills every gap between the mold and the sand box, preventing defects such as bulging and deformation. Therefore, the vibratory sand filling equipment is one of the key pieces of equipment affecting the success or failure of the casting quality.

[0003] In existing technologies, commonly used lost foam casting equipment typically employs a motor-driven eccentric block to generate excitation force, causing a vibrating table with elastic elements to perform periodic motion. However, existing technologies have significant limitations, such as a single vibration mode. Most existing equipment only provides vibration in one direction, resulting in sand particles reciprocating in a single direction under inertial force, leading to insufficient fluidity. Consequently, dead zones are formed in the complex cavities, deep holes, and grooves of the mold, resulting in insufficient compaction in certain areas.

[0004] Therefore, there is a need for a lost foam vibratory sand filling equipment with multiple vibration modes and good sand filling effect. Utility Model Content

[0005] The main purpose of this invention is to provide a lost foam vibratory sand filling device, which aims to solve the problem that existing lost foam vibratory sand filling devices cannot ensure production efficiency and casting quality.

[0006] To achieve the above objectives, the present invention provides a lost foam vibrating sand filling device, comprising:

[0007] frame;

[0008] A vibration platform includes a vibrating plate, an elastic element, a positioning mechanism, a vertical vibration motor, and a horizontal vibration motor. The vibrating plate is connected to the frame through the elastic element. The positioning mechanism is located at the top of the vibrating plate. The vertical vibration motor is located at the bottom of the vibrating plate and is spaced apart from the elastic element. The horizontal vibration motor is arranged along the circumferential side of the vibrating plate.

[0009] An airflow pre-filling assembly includes a mounting frame and an airflow distribution device. The mounting frame is fixedly mounted on the frame. The airflow distribution device includes a main pipe, branch pipes, and airflow nozzles. The main pipe is mounted on the frame, with one end connected to an external air source and the other end connected to the branch pipe. The other end of the branch pipe is connected to the airflow nozzle, and the airflow nozzles exit towards the top surface of the vibrating plate.

[0010] Preferably, the mounting frame includes a crossbeam and two columns. The two columns are vertically spaced on the frame and located on both sides of the vibrating plate. The two columns are connected by the crossbeam, which is fixedly installed at the top of the columns. The branch pipe is fixedly connected to the crossbeam.

[0011] Preferably, the mounting bracket further includes a guide rail and a slider. The guide rail is disposed on the column facing the crossbeam along the extension direction of the column. The slider is slidably connected to the guide rail along the extension direction of the guide rail, and the other end of the slider is fixedly connected to the crossbeam.

[0012] Preferably, the positioning mechanism includes a positioning pin and a clamping assembly. The positioning pin is fixedly disposed on the top surface of the vibrating plate. The clamping assembly further includes a clamping base and a pressure arm. The clamping base is slidably connected to the vibrating plate, and the pressure arm is hinged to the top of the clamping base.

[0013] Preferably, there are multiple branch pipes, which are connected to the main pipe in a matrix-like manner, and the axes of the branch pipes are all perpendicular to the top surface of the vibrating plate.

[0014] Preferably, the elastic element includes a plurality of springs, which are evenly distributed along the circumference of the vibrating plate. The top end of each spring is fixedly connected to the bottom end of the vibrating plate, and the bottom end of each spring is fixedly connected to the frame.

[0015] Preferably, the frame further includes shock-absorbing pads, which are disposed on one end of the frame away from the vibrating plate. There are multiple shock-absorbing pads, which are spaced apart from each other.

[0016] This invention employs a top-down airflow pre-filling method combined with a vibration sand filling scheme using vertical and horizontal vibration. Airflow pre-filling enhances the fluidity of the molding sand, allowing it to quickly fill complex cavities or deep holes in the mold, effectively eliminating dead corners and achieving excellent filling results. Simultaneously, multi-angle vibration compacts the pre-filled molding sand. The independent airflow pre-filling components and vibration plates simplify the mechanical structure and improve casting quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a lost foam vibrating sand filling device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the clamping assembly according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a vertical vibration motor according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the mounting bracket according to an embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023]

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1-4 As shown, this utility model proposes a lost foam vibratory sand filling device 1000, including: a frame 100; a vibration platform 200, the vibration platform 200 including a vibrating plate 210, an elastic element 220, a positioning mechanism 230, a vertical vibration motor 240 and a horizontal vibration motor 250. The vibrating plate 210 is connected to the frame 100 through the elastic element 220. The positioning mechanism 230 is disposed at the top of the vibrating plate 210. The vertical vibration motor 240 is disposed at the bottom of the vibrating plate 210 and spaced apart from the elastic element 220. The horizontal vibration motor 250 is disposed along the side of the vibrating plate 210. The airflow pre-filling assembly 300 includes a mounting frame 310 and an airflow distribution device 320. The mounting frame 310 is fixedly mounted on the frame 100. The airflow distribution device 320 includes a main pipe 321, a branch pipe 322, and an airflow nozzle 323. The main pipe 321 is mounted on the frame 100 and one end of the main pipe 321 is connected to an external air source. The other end of the main pipe 321 is connected to the branch pipe 322, and the other end of the branch pipe 322 is connected to the airflow nozzle 323. The airflow nozzle 323 is directed towards the top surface of the vibrating plate 210.

[0029] In this embodiment, the operator uses manual or automated equipment to hoist the sand box onto the vibrating plate 210, and simultaneously places the lost foam mold inside the sand box, achieving a rigid connection between the lost foam mold, the sand box, the vibrating plate 210, and the frame 100. After the rigid connection, the operator fills the sand box with molding sand and simultaneously activates the airflow distribution device 320. The airflow nozzle 323 is connected to an external air source through branch pipes 322 and main pipes 321, using a low-pressure airflow from top to bottom to blow the molding sand, causing the molding sand to become fluidized and completing the molding sand pre-filling. After the molding sand is filled, the airflow pre-filling component 300 is turned off, and the operator controls the start of the vertical vibration motor, followed by the start of the horizontal vibration motor 250, to further compact the molding sand in the sand box. After the vibration ends, the locking between the sand box and the vibrating plate 210 is released, and the sand box is sent to the subsequent process for casting.

[0030] In one embodiment, the mounting frame 310 includes a crossbeam 311 and two columns 312. The two columns 312 are vertically arranged on the frame 100 at intervals and located on both sides of the vibrating plate 210. The two columns 312 are connected by the crossbeam 311, which is fixedly installed at the top of the column 312. The branch pipe 322 is fixedly connected to the crossbeam 311.

[0031] In this embodiment, two columns 312 are fixedly installed on the frame 100 at positions corresponding to both sides of the vibrating plate 210. The columns 312 extend vertically upward and are spaced apart from the vibrating plate 210. A crossbeam 311 is mounted on the vibrating plate 210 and its two ends are connected to the columns 312 on both sides. The crossbeam 311 is also provided with a branch pipe 322 and an airflow nozzle 323. The branch pipe 322 is arranged along the extension direction of the crossbeam 311 and the columns 312.

[0032] In one embodiment, the mounting bracket 310 further includes a guide rail 313 and a slider 314. The guide rail 313 is disposed on one side of the column 312 facing the crossbeam 311 along the extension direction of the column 312. The slider 314 is slidably connected to the guide rail 313 along the extension direction of the guide rail 313, and the other end of the slider 314 is fixedly connected to the crossbeam 311.

[0033] In this embodiment, there are two guide rails 313. The two guide rails 313 are respectively set on the two sides of the column 312 facing the vibrating plate 210. The guide rails 313 extend vertically upward along the extension direction of the column 312. Each of the left and right guide rails 313 is provided with a slider 314 that is slidably connected to the guide rail 313. The two sliders 314 are respectively fixedly connected to the left and right ends of the crossbeam 311, so that the crossbeam 311 can reciprocate in the vertical direction. It can be understood that the slider 314 is also provided with a locking member. One end of the locking member passes through the slider 314 and abuts against the guide rail 313. The other end of the locking member passes through the locking member to facilitate the operation of the operator, so as to lock the slider 314 and the guide rail 313.

[0034] In one embodiment, the positioning mechanism 230 includes a positioning pin 231 and a clamping assembly 232. The positioning pin 231 is fixedly disposed on the top surface of the vibrating plate 210. The clamping assembly 232 also includes a clamping base 232A and a pressure arm 232B. The clamping base 232A is slidably connected to the vibrating plate 210, and the pressure arm 232B is hinged to the top of the clamping base 232A.

[0035] In this embodiment, the bottom of the sand box is provided with a pin hole that cooperates with the positioning pin 231. When the operator places the sand box on the vibration plate 210, the operator also needs to place the sand box corresponding to the positioning pin 231, and then operate the pressure arm 232B to rotate to the box ear or flange of the sand box, so as to rigidly connect the sand box, the mold and the vibration plate 210 into a whole. During the vibration process, the sand box jumps or shifts.

[0036] In detail, one side of the pressure arm 232B is provided with an anti-slip silicone pad, and one end of the pressure arm 232B near the clamping base 232A is provided with a universal hinge shaft. The pressure arm 232B is hinged to the clamping base 232A through the hinge shaft. The surface of the vibrating plate 210 can also be provided with multiple slide rails. The clamping base 232A is slidably connected to the slide rails to adapt to sand boxes of different sizes.

[0037] In one embodiment, there are multiple branch pipes 322, which are connected to the main pipe 321 in a matrix-like manner, and the axes of the branch pipes 322 are all perpendicular to the top surface of the vibrating plate 210.

[0038] In this embodiment, there are four branch pipes 322. The four branch pipes 322 extend upward along the side of the column 312 away from the guide rail 313 and are fixed by ring buckles and connected to the airflow nozzles 323 respectively. There are two airflow nozzles 323. Each airflow nozzle 323 is connected to two branch pipes 322 for redundancy. Both airflow nozzles 323 are fixed on the crossbeam 311 and the two airflow nozzles 323 are oriented towards the pre-placed sand box on the top surface of the vibrating plate 210 and towards the corner of the sand box. This is to blow the molding sand at the corner of the sand box from top to bottom, realize the fluidization of the molding sand, and eliminate dead corners in the sand box.

[0039] It is understood that the airflow distribution device 320 also includes a control system (not shown in the figure). The control system includes a controller, airflow valves, and motors that are electrically connected to the main pipe 321, branch pipes 322, and airflow nozzles 323. The operator controls the start, stop, timing, and intensity of the airflow valves and motors through the preset instruction set in the controller or by manually inputting instructions. This enables precise control of the sequence and duration of the airflow prefilling process and multi-directional vibration. Furthermore, it can independently adjust the airflow pressure and flow rate to adapt to different process requirements, ensuring process repeatability and product quality stability.

[0040] In one embodiment, the elastic element includes a plurality of springs, which are evenly distributed along the circumference of the vibrating plate 210. The top end of the spring is fixedly connected to the bottom end of the vibrating plate 210, and the bottom end of the spring is fixedly connected to the frame 100.

[0041] In this embodiment, the two ends of the spring are fixedly connected to the top of the frame 100 and the bottom of the vibration plate 210, respectively. Multiple springs are arranged along the circumference of the vibration plate 210 and spaced apart from the vertical vibration motor 240. The springs are used to absorb the vibration force transmitted from the vertical vibration motor 240 to the frame 100 and the ground, as well as the instantaneous vibration generated when the equipment starts or stops or is subjected to accidental impact, so as to play a buffering role and extend the service life of the whole machine.

[0042] In one embodiment, the frame 100 further includes shock-absorbing pads 400, which are disposed on one end of the frame 100 away from the vibration plate 210. There are multiple shock-absorbing pads 400, which are spaced apart from each other.

[0043] In this embodiment, there are eight shock-absorbing pads 400, which are arranged circumferentially at the bottom of the frame 100. The shock-absorbing pads 400 are made of elastic elements 220, including but not limited to rubber. The shock-absorbing pads 400 are threadedly fixed to the frame 100 by bolts. The shock-absorbing pads 400 are used to isolate ground vibrations and absorb vibrations generated during operation, significantly reducing structural noise generated during operation. The shock-absorbing pads can also compensate for minor unevenness of the ground surface. By adjusting the height of the bolts, unevenness of the ground surface can be compensated during equipment installation, ensuring that the molding sand is always level in the mold and ensuring the quality of the casting.

[0044] This invention employs a top-down airflow pre-filling method combined with a vibration sand filling scheme using vertical and horizontal vibration. The airflow pre-filling achieved through the main pipeline, branch pipelines, and airflow nozzles enhances the fluidity of the molding sand, allowing it to quickly fill complex cavities or deep holes in the mold, effectively eliminating dead corners and achieving excellent filling results. Simultaneously, the multi-angle vibration of the vertical and horizontal vibration motors compacts the pre-filled molding sand. The independent airflow pre-filling components and vibration plates simplify the mechanical structure and improve casting quality.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An expendable pattern vibratory sanding apparatus, characterized by, include: frame; A vibration platform includes a vibrating plate, an elastic element, a positioning mechanism, a vertical vibration motor, and a horizontal vibration motor. The vibrating plate is connected to the frame through the elastic element. The positioning mechanism is located at the top of the vibrating plate. The vertical vibration motor is located at the bottom of the vibrating plate and is spaced apart from the elastic element. The horizontal vibration motor is arranged along the circumferential side of the vibrating plate. An airflow pre-filling assembly includes a mounting frame and an airflow distribution device. The mounting frame is fixedly mounted on the frame. The airflow distribution device includes a main pipe, branch pipes, and airflow nozzles. The main pipe is mounted on the frame, with one end connected to an external air source and the other end connected to the branch pipe. The other end of the branch pipe is connected to the airflow nozzle, and the airflow nozzles exit towards the top surface of the vibrating plate.

2. The lost foam vibratory sand filling equipment as described in claim 1, characterized in that, The mounting frame includes a crossbeam and two columns. The two columns are vertically spaced on the frame and located on both sides of the vibrating plate. The two columns are connected by the crossbeam, which is fixedly installed at the top of the columns. The branch pipe is fixedly connected to the crossbeam.

3. The lost foam vibratory sand filling equipment as described in claim 2, characterized in that, The mounting bracket also includes a guide rail and a slider. The guide rail is disposed on the column facing the crossbeam along the extension direction of the column. The slider is slidably connected to the guide rail along the extension direction of the guide rail, and the other end of the slider is fixedly connected to the crossbeam.

4. The lost foam vibratory sand filling equipment as described in claim 3, characterized in that, The positioning mechanism includes a positioning pin and a clamping assembly. The positioning pin is fixedly disposed on the top surface of the vibrating plate. The clamping assembly also includes a clamping base and a pressure arm. The clamping base is slidably connected to the vibrating plate, and the pressure arm is hinged to the top of the clamping base.

5. The lost foam vibratory sand filling equipment as described in claim 1, characterized in that, There are multiple branch pipes, which are connected to the main pipe in a matrix-like manner, and the axes of the branch pipes are all perpendicular to the top surface of the vibrating plate.

6. The lost foam vibratory sand filling equipment as described in claim 1, characterized in that, The elastic element includes multiple springs, which are evenly distributed around the circumference of the vibrating plate. The top end of each spring is fixedly connected to the bottom end of the vibrating plate, and the bottom end of each spring is fixedly connected to the frame.

7. The lost foam vibratory sand filling equipment as described in claim 1, characterized in that, The frame also includes shock-absorbing pads, which are disposed on one end of the frame away from the vibrating plate. There are multiple shock-absorbing pads, which are spaced apart from each other.

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